WO1999055104A9 - Systeme de communication radiomobile, appareil de communication destine a ce systeme, et procede de communication radiomobile - Google Patents
Systeme de communication radiomobile, appareil de communication destine a ce systeme, et procede de communication radiomobileInfo
- Publication number
- WO1999055104A9 WO1999055104A9 PCT/JP1999/001051 JP9901051W WO9955104A9 WO 1999055104 A9 WO1999055104 A9 WO 1999055104A9 JP 9901051 W JP9901051 W JP 9901051W WO 9955104 A9 WO9955104 A9 WO 9955104A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- communication system
- superframe
- frames
- mobile radio
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 376
- 238000000034 method Methods 0.000 title claims description 56
- 230000005540 biological transmission Effects 0.000 claims description 295
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- 238000012986 modification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
- H04B7/2634—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
- H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/44—TPC being performed in particular situations in connection with interruption of transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
- H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- the present invention relates to a mobile radio communication system and a mobile radio communication system in which a UMTS (Universa 1 Mobile Telecommunication 1 Communication System) and a GSM (Group SP ecific Mobile) system coexist. More specifically, the present invention relates to a technology for observing a control channel of a GSM system, which is another system, in a mobile radio communication system using idle time in a mobile radio communication system.
- UMTS Universal 1 Mobile Telecommunication 1 Communication System
- GSM Group SP ecific Mobile
- the first point is that in a cell with heavy traffic, another carrier frequency is used to increase the number of subscribers, and handover is performed between cells.
- the second point is that when umbrella cells are configured, different carrier frequencies are assigned to large and small cells, and handover is performed between the cells.
- the third point is the case where a handover is performed between a third generation system such as a broadband mobile radio communication system and a second generation system such as a current mobile phone system.
- a mobile-device-initiated handover Mob i1EssSisted Handover: MAHO
- a network-initiated handover NetworkAssided Handover: NAHO
- MAHO mobile-device-initiated handover
- NAHO NetworkAssided Handover
- the CDMA cellular system usually uses continuous transmission for both transmission and reception. With this continuous transmission technology, it was necessary to stop the transmission or reception timing and observe other frequencies unless a reception device with two frequencies was prepared.
- FIG. 13 shows an example of transmission in a normal mode and a compressed mode in a conventional mobile radio communication system.
- the vertical axis indicates transmission speed / transmission power
- the horizontal axis indicates time.
- the compression A compressed mode transmission has been inserted.
- a non-transmission time is provided in the downstream frame, and the time can be set arbitrarily.
- This non-transmission time refers to the idle time set to measure the strength of other frequency carriers.
- slotted transmission is realized by inserting an idle time between compressed mode frame transmissions.
- the transmission power is increased in accordance with the time ratio between the idle time and the frame (compressed mode frame) transmission time. Therefore, as shown in FIG. Compressed mode frames are transmitted with higher transmission power compared to. As a result, transmission quality can be maintained even in frame transmission in the compressed mode.
- the power to observe different frequency components using one observation time (no transmission time) allocated for each superframe.
- UMTS and GSM system coexist. Assuming a mobile radio communication system, it is necessary to observe the frequency components of the GSM system between different systems, that is, from the UMTS. In this case as well, like the observation between GSM and GSM, the idle time for observing the frequency component of GSM is set in one superframe of UMTS.
- the present invention solves the above-described problem of the conventional example, so that even if UMTS and other systems coexist, the frequency components of other systems are reliably observed from UMTS, and the compressed mode frame Mobile radio communication system capable of suppressing degradation of in-live performance of communication, communication device applied to mobile radio communication system, and It is an object of the present invention to provide a mobile radio communication method. Disclosure of the invention
- a mobile radio communication system includes a first code division multiple access method that performs frame transmission using a first superframe that represents a transmission cycle of a frame, in addition to being configured with a plurality of frames. And the third superframe which represents an integral multiple of the second superframe representing the transmission period of the frame in the user data transmission channel, and the third transmission frame which represents the transmission period of the frame in the control data transmission channel. Based on the difference between the number of superframes and the number of superframes, a specific idle time is inserted into the second superframe for the downlink user data transmission channel, and control is performed using the idle time. And a second communication system that observes the frequency component of the data transmission channel coexists.
- a mobile radio communication system that performs an interleave and an in-leave, wherein at most 1/2 of one frame constituting the first superframe is provided for the first superframe and at a predetermined time.
- a predetermined idle time is provided at intervals of the number of frames, and a frequency component of a control data transmission channel of the second communication system is observed from the first communication system by using the idle time.
- the idle time for observing the frequency components of the second communication system is inserted, so that the frequency can be obtained by one observation within one superframe.
- a UMT S configured to perform frame transmission using a first super frame composed of a plurality of frames and indicating a transmission period of the frame
- the second communication system is a first supermarket of the UMT S It is a feature of another system that performs frame transmission using a second superframe having a transmission cycle equal to one frame.
- the amount of one frame constituting the super frame is at most 1/2 of the super frame of the UMT S for a predetermined time. Since the idle time for observing the frequency components of other systems is inserted at intervals of the number of frames, there is no need to observe the frequency components in one observation within one superframe. Error correction code and the spreading factor can be satisfied, so that even if UMTS and other systems coexist, the frequency components of other systems can be reliably observed from UMTS and the In this case, it is possible to suppress the degradation of the interleaving performance of the compressed mode frame.
- the first super frame corresponds to a 1 UMTS super frame of an embodiment described later
- the second super frame corresponds to a 1 GSM super frame
- the user data transmission channel corresponds to the individual traffic channel
- the control data transmission channel corresponds to the common control channel.
- the interval between the predetermined number of frames is determined by a difference in transmission cycle between the UMTS and another system.
- the predetermined frame number interval is determined based on the difference in the transmission period between the UMTS and another system, so that different frequency components can be thoroughly observed according to the difference in the transmission period. It is.
- the predetermined idle time may be located at the center of a frame that is a unit of a superframe of the UMTS. And features.
- the idle time is arranged at the center of the frame, which is a unit of the superframe of the UMTS, so that the interleave effect can be reliably obtained.
- a mobile wireless communication system is a first communication system of a code division multiple access system configured of a plurality of frames and performing frame transmission using a first super-frame representing a frame transmission period.
- the number of frames of the system and the second super-frame representing the transmission period of the frame on the user data transmission channel, which is an integral multiple of the number of frames, and the number of third super-frames representing the transmission period of the frame on the control data transmission channel Based on the difference between and, a specific idle time is inserted in the second super-frame for the downlink user data transmission channel, and the second time is used to observe the frequency component of the control data transmission channel using the idle time. And coexist, and further, when transmitting the frame of the first communication system, correcting the error of the frame.
- a mobile radio communication system that performs interleaving, wherein at least 1Z2 of at least one frame constituting the first superframe with respect to the first superframe, and necessarily at equal intervals.
- a predetermined idle time is provided at intervals of no predetermined number of slots, and by using the idle time, the frequency component of the control data transmission channel from the first communication system to the second communication system is used. The feature is to observe.
- the amount of one frame constituting the superframe with respect to the superframe of the first communication system At most 1 Z2 and at intervals of a predetermined number of slots, an idle time for observing the frequency component of the second communication system is inserted, so that one observation within one superframe Eliminating the need to observe frequency components satisfies the restrictions on error correction codes and spreading factors in frame transmission, so that even if the first communication system and the second communication system coexist, The frequency components of the second communication system are reliably observed from the first communication system. It is possible to suppress the degradation of the performance of the sync mode frame.
- the mobile radio communication system is characterized in that the first communication system is a UMTS that is configured by a plurality of frames and performs frame transmission using a first superframe that indicates a frame transmission cycle; Furthermore, the second communication system is characterized in that it is another system that performs frame transmission using a second superframe having a transmission cycle equal to the first superframe of the UMTS.
- the present invention in particular, when the UMTS and other systems coexist, at most 1/2 of the amount of one frame constituting the superframe for the superframe of the UMTS and the predetermined slot time. At time intervals, the idle time for observing the frequency components of other systems is inserted, eliminating the need to observe the frequency components in one observation within one superframe. Error correction code and the spreading factor can be satisfied, so that even if UMTS and other systems coexist, the frequency components of other systems can be reliably observed from UMTS and the In this case, it is possible to suppress the degradation of the interleaving performance of the compressed mode frame.
- the first superframe corresponds to the 1 UMT S superframe of the embodiment described later
- the second superframe corresponds to the 1 GSM superframe
- the third superframe
- Per frame corresponds to one FCCH / SCH super frame
- user data transmission channel corresponds to dedicated traffic channel
- control data transmission channel corresponds to common control channel.
- the predetermined slot number interval is determined by a difference in transmission cycle between the UMTS and another system.
- the predetermined slot number interval is determined based on the difference in the transmission cycle between the UMTS and another system, so that different frequency components can be completely observed according to the difference in the transmission cycle. It is possible.
- the super A plurality of the predetermined free time in one frame are provided, and each of the free time is arranged for each frame.
- a plurality of vacant times are arranged for each frame in the UMTS superframe, so that it is possible to secure necessary vacant time in one superframe.
- a total of the plurality of idle times is equal to the specific idle time provided for observing a frequency component between the other systems.
- the sum of the plurality of idle times is set to be equal to the specific idle time provided for observing the frequency components between other systems. It is possible to secure a vacant time equivalent to that at different frequency observations.
- the frame of a predetermined idle time is inserted is compressed and, according to c the present invention is characterized in that it is intermittently transmitted, a predetermined free Frames with time inserted are compressed and transmitted intermittently, so even if a vacant time is inserted within one frame period, highly reproducible frame transmission can be realized.
- the compressed frame is generated by increasing a coding rate.
- the compression rate is reduced, and the number of spreading codes having a shorter sequence length can be suppressed.
- the compressed frame is generated with the same spreading factor as another frame in which the predetermined idle time is not inserted.
- compressed frames are generated with the same spreading factor as other frames in which a predetermined idle time is not inserted. It is possible to maintain the interference noise characteristics.
- a communication device applied to the mobile radio communication system is a code division unit configured to perform frame transmission using a first superframe that is configured by a plurality of frames and that indicates a frame transmission period.
- a first communication system of a multiple access system a second super frame representing a transmission cycle of a frame in a user data transmission channel, an integer multiple of the number of frames, and a second transmission frame representing a transmission cycle of a frame in a control data transmission channel.
- a specific idle time is inserted, and the idle time is used to control the control data transmission channel.
- a second communication system for observing the frequency component coexist.
- Communication applied to a mobile radio communication system that performs error correction and interleaving of the frame, and continuously transmits frames in a normal mode and intermittently transmits compressed frames in a compressed mode.
- the apparatus wherein in the compression mode, at most 1/2 of the time of one frame constituting the first superframe with respect to the first superframe, and at intervals of a predetermined number of frames.
- a control unit for inserting a predetermined idle time wherein control data transmission from the first communication system to the second communication system is performed by using the predetermined idle time inserted by the control unit. It is characterized by observing the frequency component of the channel.
- the amount of one frame constituting the super frame for the super frame of the first communication system At most 1 Z2 and at intervals of a predetermined number of frames, control is performed so that an idle time for observing the frequency component of the second communication system is inserted. This eliminates the need for observing the components, and satisfies the constraints of the error correction code and the spreading factor in frame transmission.
- the communication device applied to the mobile radio communication system according to the next invention is the communication device according to the
- the first communication system is a UMT S that is configured by a plurality of frames and performs frame transmission by using a first superframe that represents a frame transmission period.
- the second communication system is a UMT S Another system that performs frame transmission by using a second super frame having a transmission cycle equal to that of the first super frame.
- a super frame of the UMT S can have at most 1/2 of the amount of one frame constituting the super frame and a predetermined frame.
- the idle time for observing the frequency components of other systems is inserted, so there is no need to observe the frequency components in one observation within one superframe. It is possible to satisfy the constraints of error correction code and spreading factor, so that even if UMTS and other systems coexist, the frequency components of other systems can be observed from UMTS without fail.
- the first super-frame corresponds to 1 UMT S super-frame of the embodiment described later
- the second super-frame corresponds to 1 GSM super-frame
- the third super-frame corresponds to the third super-frame.
- This super frame corresponds to one FCC HZ SCH super frame
- the user data transmission channel corresponds to the dedicated traffic channel
- the control data transmission channel corresponds to the common control channel.
- the control means determines the predetermined frame number interval based on a difference in transmission cycle between the UMTS and another system. I do.
- the predetermined frame number interval is determined by the difference in the transmission cycle between the UMTS and another system, so that the different frequency component is divided according to the difference in the transmission cycle. It is possible to observe without.
- control means sets the predetermined idle time to a single frame of the superframe of the UMTS. It is characterized in that it is arranged at the center of the frame which is the order.
- the predetermined idle time is arranged at the center of the frame, which is the unit of the UMTS super frame, so that the interleave effect can be reliably obtained. It is possible.
- a communication device applied to a mobile radio communication system is a code division multiplex that is composed of a plurality of frames and performs frame transmission using a first superframe representing a frame transmission period.
- a first communication system of a connection method a second super frame representing a transmission cycle of a frame in a user data transmission channel, an integral multiple of the number of frames, and a third transmission frame representing a transmission cycle of a frame in a control data transmission channel.
- a specific idle time is inserted into the second superframe for the downlink user data transmission channel on the basis of the difference between the number of superframes in the second superframe and the frequency of the control data transmission channel using the empty time.
- a second communication system for observing the components coexist, and further, at the time of frame transmission of the first communication system, Communication applied to a mobile radio communication system that performs error correction and interleaving of the frame, and continuously transmits frames in a normal mode and intermittently transmits compressed frames in a compressed mode.
- a device wherein at least one-half of one frame constituting the first superframe has a predetermined vacant space at intervals of a predetermined number of slots which are not necessarily equal to the first superframe.
- Control means for inserting a time, and by utilizing a predetermined idle time inserted by the control means, a frequency component of a control data transmission channel from the first communication system to the second communication system. Is observed.
- the amount of one frame constituting the super frame for the super frame of the first communication system At most 1/2 of the time and at intervals of a predetermined number of slots, control is performed so as to insert an idle time for observing the frequency component of the second communication system. There is no need to observe the components, and it is possible to satisfy the constraints of error correction codes and spreading factors in frame transmission.
- the communication apparatus applied to the mobile radio communication system according to the next invention which can suppress the degradation of the interleave performance of the first communication system, comprises: A UMTS that performs frame transmission using a first superframe that represents a transmission cycle is provided.
- the second communication system is further configured to use a second superframe having a transmission cycle equal to the first superframe of the UMTS. Another system that performs frame transmission using superframes.
- the superframe of the UMTS has a time slot of at most 1 Z2 for at most 1 Z2 which constitutes the superframe. Since the idle time for observing the frequency components of other systems is inserted at intervals of several times, there is no need to observe the frequency components in one observation within one superframe. Error correction code and the spreading factor can be satisfied, so that even if UMTS and other systems coexist, the frequency components of other systems can be reliably observed from UMTS, It is possible to suppress the deterioration of the interleave performance of the compressed mode frame.
- the first super frame corresponds to a 1 UMT S super frame of an embodiment described later
- the second super frame corresponds to a 1 GSM super frame
- a third super frame
- the frame corresponds to one FCCH / SCH superframe
- the user data transmission channel corresponds to the individual traffic channel
- the control data transmission channel corresponds to the common control channel.
- control means determines the predetermined frame number interval based on a difference in transmission cycle between the UMTS and another system. I do.
- the predetermined slot number interval is determined based on the difference in the transmission cycle between the UMTS and another system. It is possible to observe the whole wave number component.
- control unit provides a plurality of the predetermined idle time in a superframe of the UMTS, and arranges each idle time for each frame. It is characterized by the following.
- a plurality of vacant times are arranged for each frame in a superframe of the UMTS, so that a necessary vacant time can be secured in one superframe.
- control unit is configured to determine a total of the plurality of idle times by using the identification provided for observing a frequency component between the other systems. It is set equal to the free time of
- the sum of the plurality of idle times is set equal to the specific idle time provided for observing the frequency component between other systems, so that in one super-frame, It is possible to secure a free time equivalent to the observation of different frequencies between other systems.
- control unit increases a coding rate when generating the compressed frame.
- the coding rate is increased to generate a compressed frame. Therefore, the compression rate is reduced, and the number of spreading codes having a shorter sequence length can be reduced. It is.
- control unit when generating the compressed frame, sets the same spreading factor as another frame that does not insert the predetermined idle time. It is characterized by setting.
- the control unit increases an average transmission power in the compression mode. According to the present invention, during control, the average transmission power is increased in the compressed mode, so that characteristic deterioration can be minimized.
- the mobile radio method according to the next invention comprises a plurality of frames and
- a first communication system of a code division multiple access system that performs frame transmission using a first super-frame representing a frame transmission period, and a second super system representing a frame transmission period in a user data transmission channel.
- the second number for the downlink user data transmission channel is determined based on the difference between the number of frames that is an integral multiple of the frame and the number of frames of the third super frame representing the transmission period of the frame in the control data transmission channel.
- a second communication system that inserts a specific idle time into a super frame and observes a frequency component of a control data transmission channel using the idle time; and a second communication system. Is applied to a mobile radio communication system that performs error correction and interleaving of the frame when the frame is transmitted in normal mode.
- a first step of performing, for the first superframe, a time of at most 1 Z2 of one frame constituting the first superframe, and the first communication system and the second communication A second step of intermittently transmitting the frame compressed in the first step by inserting a predetermined idle time into a predetermined frame number interval determined by a frame structure relationship between systems, and By using the predetermined idle time inserted in the second step, it is possible to observe the frequency component of the control data transmission channel of the second communication system from the first communication system. To.
- a frame to be transmitted intermittently is compressed, and a superframe of the first communication system is formed with respect to the super frame of the first communication system.
- a predetermined frame number interval determined by the relationship of the frame structure between the communication system and the second communication system, an idle time for observing the frequency component of the second communication system is inserted, and the compressed frame is inserted.
- the intermittent transmission process eliminates the need to observe frequency components in one observation within one superframe, and satisfies the restrictions on error correction codes and spreading factors in frame transmission.
- a mobile radio method is a first communication system of a code division multiple access system configured by a plurality of frames and performing frame transmission using a first superframe representing a frame transmission period. And the number of frames of an integral multiple of the second superframe representing the transmission period of the frame in the user data transmission channel, and the third super-frame number of the frame representing the transmission period of the frame in the control data transmission channel.
- the second communication in which a specific idle time is inserted into the second superframe for the downlink user data transmission channel based on the difference between the two, and the frequency component of the control data transmission channel is observed using the idle time And coexist, and further, when transmitting a frame in the first communication system, error correction and
- This is a mobile wireless communication method applied to a mobile wireless communication system that performs intermittent transmission, and continuously transmits frames in a normal mode and intermittently transmits compressed frames in a compressed mode.
- the frequency of the control data transmission channel of the communication system It is characterized by observing components.
- a frame to be transmitted intermittently is compressed, and a super frame of the first communication system is formed with respect to a superframe of the first communication system.
- the frequency component of the second communication system is reduced according to a predetermined slot number interval determined by the relationship of the frame structure between the first communication system and the second communication system at most 1/2 of the frame amount. Since the process of transmitting the compressed frame intermittently by inserting an idle time for observation is adopted, it is not necessary to observe the frequency component in one observation within one superframe. It is possible to satisfy the constraints of the error correction code and the spreading factor in the transmission, so that even if the first communication system and the second communication system coexist, the first communication system can switch from the first communication system to the second communication system.
- the mobile radio communication method according to the next invention is characterized in that the first communication system comprises a plurality of frames, and wherein the UMT performs frame transmission using a first superframe representing a frame transmission period. S, and the second communication system is another system that performs frame transmission using a second superframe having a transmission cycle equal to the first superframe of the UMTS. I do.
- the amount of one frame constituting the superframe of the UMTS is at most 1Z2 for the superframe, and Since the idle time for observing the frequency components of other systems is inserted at intervals of a predetermined number of frames or at intervals of a predetermined number of slots, it is necessary to observe the frequency components in one observation within one superframe.
- the first super-frame corresponds to the 1 UMTS super-frame of the embodiment described later
- the second super-frame corresponds to the second super-frame.
- One superframe corresponds to the i GSM superframe
- the third superframe corresponds to one FCC HZ SCH superframe
- the user data overnight transmission channel corresponds to the individual traffic channel
- the control data transmission channel corresponds to the iGSM superframe. This corresponds to the common control channel.
- the first step is characterized in that the compressed frame is generated by increasing a coding rate.
- the compression rate is reduced, and the number of spreading codes having a shorter sequence length can be suppressed.
- the first step is to generate the compressed frame at the same spreading factor as other frames without inserting the predetermined idle time.
- the step of generating a frame compressed with the same spreading factor as other frames in which a predetermined idle time is not inserted is performed, it is possible to maintain the interference noise characteristic of the compressed frame. .
- the second step is to increase an average transmission power in the compression mode.
- FIG. 1 shows a frame format applied to a GSM system.
- FIG. 1 (a) is a diagram for explaining a frame format of an individual traffic channel
- FIG. 1 (b) is a diagram showing a frame format of a common control channel.
- FIG. 2 is a diagram illustrating a mat
- FIG. 2 is a diagram illustrating an observation time of a GSM super frame applied to a GSM system
- FIG. 3 is a method of observing a different frequency component between GSM and GSM.
- (A) is a diagram for explaining the frame format of the common control channel.
- (B) illustrates the frame format of the individual traffic channel in relation to the common control channel
- (c) illustrates the observation time inserted for each GSM superframe.
- FIG. 1 shows a frame format applied to a GSM system.
- FIG. 1 (a) is a diagram for explaining a frame format of an individual traffic channel
- FIG. 1 (b) is a diagram showing a frame format of a common control channel
- FIG. 4 is a diagram for explaining an observation method in the GSM system.
- FIG. 5 shows a frame format applied to the UMTS
- FIG. 6 is a diagram for explaining a frame format of a traffic channel.
- FIG. 6B is a diagram for explaining a format of a UMTS super frame.
- FIG. 6 is a diagram for explaining a different frequency between GSM and UMTS.
- the figure (a) illustrates the frame format of the common control channel applied to the GSM system, and the figure (b) illustrates the superframe between the UMTS and the GSM system.
- FIG. 7 (c) is a diagram illustrating an observation time inserted for each superframe in the UMTS, and FIG.
- FIG. 7 is a diagram illustrating a downlink signal according to the first embodiment of the present invention.
- FIG. 8 is a diagram for explaining frame transmission.
- FIG. 8 is a block diagram showing a mobile radio communication system according to Embodiment 1 of the present invention.
- FIG. 9 is a block diagram showing Embodiment 1 of the present invention.
- FIG. 10 is a flowchart illustrating a transmission operation in a compression mode.
- FIG. 10 is a flowchart illustrating a reception operation in a compression mode according to the first embodiment of the present invention.
- FIG. 12 is a diagram for explaining downlink frame transmission according to Embodiment 2 of the present invention.
- FIG. 12 is a diagram for explaining downlink frame transmission according to Embodiment 3 of the present invention.
- Fig. 13 shows the conventional 2 is a diagram for explaining downlink frame transmission in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- Embodiment 1 of the present invention a mobile radio communication system in which a UMTS and a GSM system coexist is an example. Shown. First, the existing GSM system will be described.
- Figure 1 shows the frame format applied to the GSM system. Specifically, FIG. 1 (a) is a diagram illustrating the frame format of an individual traffic channel, and FIG. 1 (b) is a diagram illustrating the frame format of a common control channel.
- TACH Traffic and As sociat ed Channel
- FCCH Frequency Coordination on Channel
- SCH Synchronon on isati on Channe l
- l is defined.
- TACH Traffic and As sociat ed Channel
- FCCH Frequency Coordination on Channel
- SCH Synchronon on isati on Channe l
- l is defined.
- TACH Traffic and As sociat ed Channel
- FCCH Frequency Coordination on Channel
- SCH Synchronon on isati on Channe l
- l is defined in the dedicated traffic channel TACH, as shown in Fig. 1 (a), the period for transmitting the frame as a transmission unit from # 1 to # 26 is defined as 1 GSM superframe.
- One frame is 8 BP (Burst Period) time. Note that 1 BP is 0.577 ms. Therefore, a 1 GSM super-frame has a transmission cycle of 120 ms.
- F CCH / SCH as shown in FIG.
- Fig. 2 is a diagram explaining the observation time of a GSM super-frame applied to the GSM system.
- Fig. 3 shows the method of observing different frequency components between GSM and GSM.
- Fig. 3 (a) is a diagram illustrating the frame format of the common control channel
- Fig. 3 (b) is a diagram illustrating the frame format of the individual traffic channel in relation to the common control channel.
- C is a diagram for explaining the observation time inserted for each super-frame.
- FIG. 4 is a diagram for explaining an example of observation in the individual traffic channel of the GSM system.
- the non-transmission time is used to observe and detect the different frequency components (control channels) of other GSM systems.
- the FCCHZSC H superframe described above is composed of 51 frames (see Fig. 3 (a)).
- a GSM superframe see Fig. 3 (b)
- a difference of one frame occurs when comparing both super frames. That is, the FCCHZSCH superframe is one frame short. Since the observation time is once per GSM superframe, two observations and detections are performed in the 2GSM superframe (see Fig. 3 (c)). C The observation and detection procedures are shown in Fig. 4.
- Figure 5 shows the frame format applied to UMTS.
- Fig. 5 (a) is a diagram explaining the frame format of the dedicated traffic channel applied to the GSM system
- Fig. 5 (b) is a diagram explaining the format of the UMTS super-frame.
- FIG. 5 (a) is a diagram explaining the frame format of the dedicated traffic channel applied to the GSM system
- Fig. 5 (b) is a diagram explaining the format of the UMTS super-frame.
- the cycle of transmitting the frame as a transmission unit from # 1 to # 26 is defined as one GSM super one frame.
- One frame is 8 BP (Burst Period) time.
- a UMTS superframe is configured with the same period as this GSM superframe. That is, in the UMTS, as shown in FIG. 5 (b), the cycle of transmitting a 10 ms frame from # 1 to # 12 is set to one UMTS super frame for all channels.
- Figure 6 shows the method of observing different frequency components between GSM and UMTS.
- Fig. 6 (a) is a diagram explaining the frame format of the common control channel applied to the GSM system
- Fig. 6 (b) is the diagram of the super-frame between the UMTS and the GSM system. It is a figure explaining a relationship
- the figure (c) is a figure explaining the observation time inserted for every superframe in UMTS.
- the above-mentioned FCCH / SCH superframe is composed of 51 frames (see FIG. 6 (a)).
- a GSM superframe see Fig. 3 (b)
- the relationship between the FCCHZSCH superframe and the UMTS superframe matches the relationship between the FCCHZSCH superframe and the GSM superframe already described. . That is, the FCCHZSCH superframe is compared with the 2 UMTS superframe. Then, a difference of one frame occurs (see Fig. 6 (b)).
- the observation and detection of different frequency components per UMTS superframe are performed multiple times.
- the time performance, etc. for capturing the control channel of the GSM system shall be the same as when the observation time is created once per UMTS superframe.
- the number of idle slots for obtaining one observation time is set smaller than that between GSM and GSM. This idle slot is generated by using a punctured code or an error correction coding with a higher coding rate.
- Embodiment 1 shows a case where two observations and detections are performed per UMTS superframe. Therefore, four observations and detections are performed in two UMTS super frames.
- This observation and detection method will be described with reference to FIG.
- FIG. 7 is a diagram illustrating downlink frame transmission according to the first embodiment of the present invention.
- the vertical axis represents transmission speed / transmission power
- the horizontal axis represents time.
- the comparison between the 1 FCCH / SCH superframe and 2UMTS superframe of the common control channel has a difference of 1 frame.
- the position of the observation time allocated to the i GSM superframe is fixed, and also in the U MTS, the observation time allocated to one UMTS super frame in the downlink traffic channel is similarly determined. The position is fixed. Therefore, observation and detection are performed in predetermined frames (two places) of each UMTS super frame. As described above, since there is a difference of one frame between one FCCH / SCH superframe and 2UMTS superframe, it is possible to observe one frame at a time in each observation.
- the UMTS superframe corresponds to two periods for one FCCHZSCH superframe
- observation and detection are performed four times per FCCH / SCH superframe. That is, for each 1 UMTS superframe, the difference in observation time between pairs is 1 UMTS superframe, so that a pair of observations proceeds with a shift of one FCCHZSCH superframe. Therefore, in frequency handover between UMTS and GSM, observation and detection are performed four times per one cycle of the FCCH / SCH superframe, and shifted by one frame per cycle in each observation.
- the observation time ie, the idle slot
- the observation time is located at the center of a predetermined frame.
- an evening-leave effect can be obtained.
- redundancy is reduced, and more idle time can be secured.
- the amount of information to be transmitted is reduced, so that the spreading factor can be kept constant. That is, the anti-interference noise characteristics can be maintained.
- the transmission power is slightly lower than the normal transmission power due to the deterioration of characteristics. The transmission power needs to be increased.
- FIG. 8 is a block diagram showing a mobile radio communication system according to Embodiment 1 of the present invention.
- the mobile radio communication system includes a transmitter 1 and a receiver 2, and is provided in each of a base station and a mobile station.
- a W wide area
- CDMA code division multiple access
- the transmitter 1 includes a controller 11, an error correction encoder 12, a receiver 13, a framed Z spreader 14, a radio frequency transmitter 15, and the like. I have it.
- the controller 11 mainly controls the operations of the interleaver 13, the framed Z spreader 14 and the radio frequency transmitter 15 through negotiation with the receiver 2.
- the controller 11 controls operations suitable for the normal mode (non-compression mode) and the compression mode by negotiation with the receiver 2. Specifically, the controller 11 instructs the framing / spreader 14 with a transmission timing for transmitting the compressed mode frame in the compressed mode.
- the controller 11 instructs the radio frequency transmitter 15 to increase the average transmission power when transmitting the compressed mode frame.
- the error correction encoder 12 performs error correction coding on the transmission data sequence to obtain coded data.
- the interleaver 13 is used to bite the encoded data so that the effects of transmission errors can be minimized if, for example, successive bits of the transmitted signal are lost during transmission due to faging.
- the time order is rearranged (interleaved) in units.
- the interleaver 13 has a memory for performing interleaving for one frame.
- the framing / spreader 14 spreads over a wide band using a spreading code for each user according to each of the normal mode and the compression mode, and forms a frame corresponding to each mode.
- frame timing / spreader 14 is instructed by controller 11 to perform transmission timing according to each mode, it transmits a frame to radio frequency transmitter 15 at the transmission timing.
- the radio frequency transmitter 15 transmits the transmission signal obtained by the framed Z spreader 14 Is converted to a radio frequency and transmitted.
- the radio frequency transmitter 15 outputs a transmission signal by increasing the average transmission power in the compression mode as compared with the normal mode according to the control of the controller 11.
- the receiver 2 includes a controller 21, an error correction decoder 22, a deinterleaver 23, a deframing / despreader 24, a radio frequency receiver 25, and the like.
- the controller 21 mainly controls the operation of the deinterleaver 23 and the deframed Z despreader 24 through negotiation with the transmitter 1.
- the controller 21 controls the operation suitable for each of the normal mode and the compressed mode by negotiation with the transmitter 1. More specifically, the controller 21 instructs the deframing / despreading unit 24 to perform reception and reception for receiving a compressed mode frame in the compressed mode.
- the radio frequency receiver 25 demodulates a received signal transmitted from an antenna (not shown).
- the deframing Z despreader 24 performs despreading using a spreading code assigned to the user of the receiver 2 according to each of the normal mode and the compression mode, and forms a frame corresponding to each mode.
- the deframing / despreader 24 receives a reception signal from the radio frequency receiver 25 at the reception timing when the reception timing corresponding to each mode is instructed by the controller 21.
- the Dinning Lever 23 rearranges the encoded data in the bit order in bit order in the reverse order of the interleaving in the transmitter 1 (dining and leaving).
- the dinning lever 23 has a memory for performing one frame of in-leave in the same manner as the above-described inverting lever 13.
- the error correction decoder 22 performs error correction decoding of the din-received signal to obtain decoded data, that is, a reception data sequence.
- frame transmission including the compressed mode will be described.
- the compressed mode a period in which frames are slotted and transmitted intermittently is provided, and the non-transmission time during that period is used to measure the strength of other frequency carriers. To do this, it is necessary to compress the slotted frame, If interleaving is performed in the same way as during normal transmission, the interleaving time will not be sufficient, and it will not be possible to obtain a sufficient interleaving effect.
- the transmission time of the compressed frame is divided within one frame, and one is allocated to the beginning of the frame frame and the other is allocated to the end of the same frame frame, thereby securing the required time for interleaving. That is, the idle slot corresponding to the observation time is placed in the center of the frame. In receiver 2, this task is reversed.
- the relationship between the number of idle slots and the number of slots of the compressed mode frame will be described. If one frame is considered as 16 slots and the number of slots in the first half is A, the number of idle slots is B, and the number of slots in the second half is C, for example, the following combinations are possible. That is,
- the position of the idle slot is basically at the center of the frame, but may be shifted back and forth.
- the compression mode frame is divided into two in the first half and the latter half with the idle slot as a boundary in one frame. Therefore, a method of determining an observation time, that is, an idle slot at which frame in one UMTS super-frame is inserted, and a method of determining the insertion position will be described.
- one UMTS superframe is composed of 12 frames.
- one GSM super-frame is composed of 26 frames and is 8 BP per frame, so that the total of the period is 208 BP. Also, since the idle slot equivalent to 8 BP is observed in two compression modes, the length of the idle slot equivalent to 4 BP is observed in one compression mode.
- Equation (1) shows the equation for specifying the position of the second frame from the first frame when the first frame is arbitrarily specified for one UMTS super frame. Equation (1) shows the case where the first half frame number is an even number and the second half frame number is an odd number. Equation (1) is
- Equation (1) the observable location in the first half of the compressed mode is the same, but the observation time length is 4 ⁇ , which is half of 8 ⁇ , so that it can be observed in the second half of the compressed mode.
- ⁇ indicates the relational expression for equivalently observing 4 ⁇ ⁇ corresponding to the second half of 8 ⁇ ⁇ missing in the first half. That is, 4 (2 ⁇ + 1) indicates an odd multiple of 4 BP (when the first half is an even number, the second half is an odd number), and the interval should be K times the UM TS frame length. It suggests.
- n is any natural number.
- the frame three frames after the first frame may be set as the second frame, or the frame nine frames after the first frame may be set as the second frame.
- frame # 2 is the first frame
- frame # 5 is the second frame.
- FIG. 9 is a flowchart illustrating the transmission operation in the compression mode
- FIG. 10 is a flowchart illustrating the reception operation in the compression mode. In the compression mode by the transmitter 1 on the UMT S side (see FIG.
- step S 101 an interleave in one frame is instructed to the interleaver 13 (step S 101), and the interleaver i 3 Then, an evening live will be held in one frame. Then, when the time reaches either the first half or the second half of the first frame timing or the second frame timing to be observed (step S 102), the transmission to the framed Z spreader 14 is performed. Evening is instructed (step S103).
- step S104 an increase in average transmission power is instructed to the radio frequency transmitter 15 (step S104), and frame transmission is performed at a higher transmission power in the compressed mode frame than in the normal mode. In this way, two observations and detections are performed within one UMT S superframe. In the compressed mode, frames are transmitted intermittently (discontinuously).
- the frequency components of the other systems can be reliably observed from the UMTS, and at this time, the degradation of the compressed mode frame interleaving performance can be suppressed.
- the predetermined frame number interval is determined by the difference in transmission cycle between UMTS and other systems, so that different frequency components are thoroughly observed according to the difference in transmission cycle. It is possible.
- the idle period is arranged at the center of the frame, which is a unit of the UMTS superframe, it is possible to reliably obtain the interleaving effect.
- the total idle time of multiple idle slots is set to about 6.9 ms, which is equivalent to that of GSM.Therefore, in one UMT S superframe, the idle time is the same as that of different frequency observations between other systems. It is possible to secure.
- frames with idle slot time inserted are compressed and transmitted intermittently, realizing frame transmission with high reproducibility even if an idle time is inserted within one frame period. It is possible to
- the compression rate is reduced, and the number of spreading codes having a shorter sequence length can be reduced.
- compressed frames are generated with the same spreading factor as in the normal mode, so that it is possible to maintain the interference noise characteristics of the compressed frames.
- the observation time (about 6.9 ms) is divided into two in one UMTS super-frame, and observation and detection are performed in two frames.
- the present invention is not limited to this. Even if the observation time is divided more than two as in the second embodiment described below, In the second embodiment, four divisions will be described as an example.
- the overall configuration is the same as that of the above-described first embodiment. In the following description, only differences in operation will be described.
- FIG. 11 is a diagram for explaining downlink frame transmission according to the second embodiment of the present invention.
- the vertical axis represents transmission speed / transmission power
- the horizontal axis represents time.
- the dedicated traffic channel TACH / F the position of the observation time assigned to one GSM superframe is fixed, and also in UMTS, the observation time is assigned to one UMTS super-one frame in the downlink traffic channel. The position between them is fixed. Therefore, observation and detection are performed in a predetermined frame (four places) of each UMTS superframe.
- the compression mode frame is divided into two in the first half and the second half with respect to the idle slot in one frame. Therefore, how to determine the observation time, that is, the idle slot, in which frame in one UMTS superframe is to be inserted and how to determine the insertion position will be described.
- one UMTS super-frame is composed of 12 frames
- a method of dividing the UMTS super-frame by the number of frames is adopted.However, the method is divided into smaller units of time.
- the position where the idle slot is arranged may be set. For example, since one frame in UMTS is composed of 16 slots, a method of dividing by the number of slots is used in the second embodiment.
- Equation (3) shows the equation for four divisions.
- the first to fourth frames to which the observation time is assigned are required.
- Equation (3) shows a case where the frame number of the first frame is an even number.
- Equation (3) is an equation for calculating the second frame. As in the first embodiment, this equation (2) is
- Equation (3) ⁇ 1 indicates the frame number of the second frame of the UMTS superframe, and n is an arbitrary natural number. In the right-hand side of the equation (3), one frame is 16 slots, and therefore is multiplied by 12 frames in the denominator.
- the frame to be allocated is a frame 1.5 frames after the first frame.
- Equation (5) is an equation for obtaining the third frame. This equation (5) is
- Equation (5) ⁇ 2 indicates the frame number of the third frame of the UMTS superframe, and n is an arbitrary natural number.
- Equation (7) is an equation for calculating the fourth frame. This equation (7) is
- Equation (7) # 3 indicates the frame number of the fourth frame of the UMTS super frame, and n is an arbitrary natural number.
- the division interval is not the predetermined frame interval, but is the predetermined slot number interval.
- the observation time (approximately 6.9 ms) is divided into four in one UMTS superframe, and observation and detection are performed in four frames.
- the present invention is not limited to this, and the observation time may be divided more than four as in the third embodiment described below. In the third embodiment, eight divisions will be described as an example.
- the overall configuration is the same as that of the above-described first embodiment, and only the difference in operation will be described below.
- FIG. 12 is a diagram illustrating downlink frame transmission according to Embodiment 3 of the present invention.
- the vertical axis represents the transmission speed Z and the transmission power
- the horizontal axis represents time.
- the dedicated traffic channel TACHZF the position of the observation time allocated to one GSM superframe is fixed, and also in the UMTS, the positions of the eight observation times allocated to one UMTS superframe in the downlink traffic channel Is fixed. Therefore, observation and detection are performed in a predetermined frame (four places) of each UMTS superframe.
- the compression mode frame is divided into two in the first half and the second half in one frame with the idle slot as a boundary. Therefore, a method of determining an observation time, that is, an idle slot, in which frame in one UMTS super-frame is to be inserted, and a method of determining the insertion position will be described.
- the UMTS supersteam is divided into smaller time units, and the positions where idle slots are arranged are set.
- the number of divisions of the observation time within one UMTS super-frame may be eight, and in this case, the same effect as in the first embodiment described above is obtained. Can be obtained.
- the division interval is not a predetermined frame interval, but is a predetermined slot number interval.
- the present invention is not limited to this, and the observation time is smaller than the slot depending on the number of divisions. May be used as a reference to further increase the number of divisions.
- the present invention has been described with the above embodiments. However, various modifications are possible within the scope of the present invention, and these are not excluded from the scope of the present invention.
- the superframe of the first communication system has a large amount of one frame constituting the superframe. Since the idle time for observing the frequency component of the second communication system is inserted at the time of 1 Z2 and at a predetermined frame number interval, the frequency component can be observed by one observation within one superframe. This eliminates the need for measurement, and satisfies the restrictions on error correction codes and spreading factors in frame transmission.
- the first communication From the stem be securely observed frequency component of the second communication system, in this case, to suppress the deterioration of interleaving performance of the compressed mode frame
- a possible mobile radio communication system is obtained.
- the maximum amount of one frame constituting the superframe of the UMTS superframe is at most 1/2 time and a predetermined time. Since the idle time for observing the frequency component of another system is inserted at the interval of the number of frames, it is not necessary to observe the frequency component in one observation within one superframe, and the frame transmission The above constraints on the error correction code and spreading factor can be satisfied, so that even if UMTS and other systems coexist, the frequency components of other systems can be reliably observed from UMTS, In addition, it is possible to obtain a mobile radio communication system capable of suppressing deterioration of interleaving performance of a compressed mode frame.
- the predetermined frame number interval is determined based on the difference in the transmission cycle between the UMTS and another system, so that different frequency components can be completely observed according to the difference in the transmission cycle. This provides an effect that a simple mobile radio communication system can be obtained.
- the vacant time is arranged in the center of the frame, which is a unit of the super-frame of the UMT S, so that the mobile radio communication capable of reliably acquiring the evening-leave effect can be obtained. An effect is obtained that a system can be obtained.
- the amount of one frame constituting the super-frame is larger than the superframe of the first communication system.
- a vacant time for observing the frequency component of the second communication system is inserted at half the time and at intervals of a predetermined number of slots, so that the frequency component is observed by one observation within one superframe.
- the predetermined slot number interval is determined by the difference in the transmission cycle between the UMTS and another system, so that different frequency components can be completely observed according to the difference in the transmission cycle. There is an effect that a possible mobile radio communication system is obtained.
- a plurality of vacant times are arranged for each frame in the super-frame of the UMT S, so that it is possible to secure a necessary vacant time within one super-frame.
- An effect is obtained that a system can be obtained.
- the sum of the plurality of idle times is set equal to the specific idle time provided for observing the frequency component between other systems. This has the effect of providing a mobile radio communication system capable of securing the same free time as the different frequency observation.
- the frame in which the predetermined free time is inserted is compressed and transmitted intermittently, so that even if the free time is inserted within one frame period, the reproducibility can be improved.
- This has the effect of providing a mobile radio communication system capable of realizing high frame transmission.
- the compression rate is reduced, and the mobile radio which can suppress the number of spreading codes having a shorter sequence length can be suppressed.
- a communication system can be obtained.
- a frame compressed with the same spreading factor as another frame in which a predetermined idle time is not inserted is generated, it is possible to maintain the interference noise characteristic of the compressed frame. This has the effect of providing a mobile radio communication system.
- the amount of one frame constituting the super frame with respect to the super frame of the first communication system is determined. At most one-half of the time and at intervals of a predetermined number of frames, control is performed so that idle time for observing the frequency components of the second communication system is inserted, so that only one observation within one super-frame It is not necessary to observe the frequency component, and it is possible to satisfy the constraints of the error correction code and the spreading factor in the frame transmission.
- the first communication system A mobile radio communication system capable of reliably observing the frequency component of the second communication system from the communication system of the second embodiment and suppressing the degradation of the interleaving performance of the compressed mode frame. There is an effect that a communication device to which the present invention is applied is obtained.
- the idle time for observing the frequency component of the other system is inserted at intervals of a predetermined number of frames at the maximum of 1 Z2 of the amount of one frame constituting the super frame. Therefore, it is not necessary to observe the frequency component in one observation within one super-frame, and it is possible to satisfy the constraints of the error correction code and the spreading factor in the frame transmission. Even if the system and other systems coexist, it is possible to observe the frequency components of the other system from the UMTS without fail, and to suppress the degradation of the interleaving performance of the compressed mode frame at that time.
- the predetermined frame number interval is determined by the difference of the transmission period between UMTS and other systems. Since the way to an effect that the communication device is obtained which is applied to a mobile radio communication system capable of observing a different frequency components thoroughly without depending on the difference between the transmission period.
- the predetermined idle time is set to the
- the communication device is arranged at the center of the frame, which is a unit of the communication system, it is possible to obtain a communication device applicable to a mobile radio communication system capable of reliably obtaining an interleave effect.
- the next invention when the first communication system and the second communication system coexist, a large amount of one frame constituting the super frame for the super frame of the first communication system is provided.
- control is performed so that the idle time for observing the frequency component of the second communication system is inserted at a time of 12 and a predetermined number of slots, so that the frequency component is observed by one observation within one superframe. Obviating the need for observing the first communication system and the second communication system, even if the first communication system and the second communication system coexist.
- a mobile radio communication system that can reliably observe the frequency components of the second communication system from the system and suppress the degradation of the interleave performance of the compressed mode frame at that time. Communications apparatus for use an effect that can be obtained.
- the maximum amount of one frame constituting the superframe of the UMTS superframe is at most 1/2 time and a predetermined time. Since the idle time for observing the frequency components of other systems is inserted at intervals of the number of slots, there is no need to observe the frequency components in one observation within one superframe, and frame transmission is performed.
- the above constraints on the error correction code and spreading factor can be satisfied, so that even if UMTS and other systems coexist, the frequency components of other systems can be reliably observed from UMTS,
- the predetermined slot number interval is determined by the difference in transmission cycle between UMTS and other systems, mobile radio capable of observing different frequency components evenly according to the difference in transmission cycle There is an effect that a communication device applied to a communication system can be obtained.
- the next invention at the time of control, a plurality of vacant times are arranged for each frame in the UMTS superframe, so that the necessary vacant time can be secured within one super-frame. There is an effect that a communication device applied to a simple mobile radio communication system can be obtained.
- the sum of a plurality of idle times is set to be equal to a specific idle time provided for observing frequency components between other systems. This has the effect of obtaining a communication device applicable to a mobile radio communication system capable of securing an idle time equivalent to different frequency observation between systems.
- the coding rate is increased to generate a compressed frame. Therefore, the compression rate is reduced, and the number of spreading codes having a shorter sequence length is reduced. There is an effect that a communication device applied to a mobile radio communication system capable of performing the above can be obtained.
- a frame compressed with the same spreading factor as other frames that do not insert a predetermined idle time is generated.
- the average transmission power is increased in the compressed mode, so that a communication device applied to a mobile radio communication system capable of minimizing characteristic degradation is provided. The effect is obtained.
- a frame to be transmitted intermittently is compressed, and a super frame of the first communication system is formed for a super frame of the first communication system.
- the compressed frame is transmitted intermittently by inserting a vacant time to perform the operation, so that it is not necessary to observe the frequency component in one observation within one superframe.
- a frame to be transmitted intermittently is compressed, and a super frame of the first communication system is formed for a super frame of the first communication system.
- the compressed frame is transmitted intermittently by inserting an idle time to perform the operation, so that it is not necessary to observe the frequency component in one observation within one superframe. It is possible to satisfy the constraints of the error correction code and the spreading factor in the transmission, so that even if the first communication system and the second communication system coexist, the first communication system switches to the first communication system.
- the second advantage is that it is possible to obtain a mobile radio communication method that can reliably observe the frequency components of the communication system of No. 2 and suppress the degradation of the performance of the compression mode frame during that time. .
- the compression rate is reduced, and the mobile radio capable of suppressing the number of spreading codes having a shorter sequence length can be suppressed. There is an effect that a communication method can be obtained.
- the step of generating a frame compressed with the same spreading factor as another frame in which the predetermined idle time is not inserted is performed, it is possible to maintain the interference noise characteristic of the compressed frame.
- the mobile wireless communication method can be obtained.
- the mobile radio communication system, the communication device and the mobile radio communication method applied to the mobile radio communication system according to the present invention provide the mobile radio communication system with the idle time of the control channel of another system.
- UMTS Uni Versa 1 Mobile Terrestia 1 Commuticon System
- GSM Group Spe cific Mob ile
- the mobile radio communication system is suitable for a mobile radio communication system.
Description
Claims
Priority Applications (24)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB998078611A CN1179593C (zh) | 1998-04-23 | 1999-03-04 | 移动无线通信系统、发射机和接收机以及移动无线通信方法 |
AU27459/99A AU2745999A (en) | 1998-04-23 | 1999-03-04 | Mobile radio communication system, communication apparatus for mobile radio communication system, and mobile radio communication method |
EP19990907865 EP0996301B1 (en) | 1998-04-23 | 1999-03-04 | Mobile radio communication system, communication apparatus for mobile radio communication system, and mobile radio communication method |
DE1999623517 DE69923517T2 (de) | 1998-04-23 | 1999-03-04 | Mobiles funkkommunikationssystem, kommunikationseinrichtung für mobiles funkkommunikationssystem und verfahren zur mobilen funkkommunikation |
KR1020007011777A KR100362627B1 (ko) | 1998-04-23 | 1999-03-04 | 이동체 무선 통신 시스템, 이동체 무선 통신 시스템에적용되는 통신 장치 및 이동체 무선 통신 방법 |
JP55026499A JP3490097B2 (ja) | 1998-04-23 | 1999-03-04 | 移動体通信システム、受信機、送信機および移動体無線通信方法 |
CA002329204A CA2329204C (en) | 1998-04-23 | 1999-03-04 | A mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US09/467,063 US6469995B1 (en) | 1998-04-23 | 1999-12-20 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US10/208,813 US6898196B2 (en) | 1998-04-23 | 2002-08-01 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/048,906 US7218646B2 (en) | 1998-04-23 | 2005-02-03 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/371,902 US7206302B2 (en) | 1998-04-23 | 2006-03-10 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/372,121 US7379476B2 (en) | 1998-04-23 | 2006-03-10 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/371,885 US20060153145A1 (en) | 1998-04-23 | 2006-03-10 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/400,239 US7593370B2 (en) | 1998-04-23 | 2006-04-10 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/737,602 US20070286235A1 (en) | 1998-04-23 | 2007-04-19 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/737,610 US7899430B2 (en) | 1998-04-23 | 2007-04-19 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/754,946 US20070223442A1 (en) | 1998-04-23 | 2007-05-29 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,592 US20080069051A1 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,882 US20080076417A1 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,428 US7876730B2 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,375 US7912015B2 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
US11/931,270 US7995541B2 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication appartus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,322 US20080076416A1 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
US11/931,499 US20080062950A1 (en) | 1998-04-23 | 2007-10-31 | Mobile radio communication system, communication apparatus applied in a mobile radio communication system, and mobile radio communication method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP10/114003 | 1998-04-23 | ||
JP11400398 | 1998-04-23 |
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US09/467,063 Continuation US6469995B1 (en) | 1998-04-23 | 1999-12-20 | Mobile radio communication system, communication apparatus applied in mobile radio communication system, and mobile radio communication method |
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WO1999055104A1 WO1999055104A1 (fr) | 1999-10-28 |
WO1999055104A9 true WO1999055104A9 (fr) | 2000-02-17 |
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PCT/JP1999/001051 WO1999055104A1 (fr) | 1998-04-23 | 1999-03-04 | Systeme de communication radiomobile, appareil de communication destine a ce systeme, et procede de communication radiomobile |
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US (17) | US6469995B1 (ja) |
EP (18) | EP0996301B1 (ja) |
JP (2) | JP3490097B2 (ja) |
KR (1) | KR100362627B1 (ja) |
CN (5) | CN1881861A (ja) |
AT (5) | ATE468717T1 (ja) |
AU (1) | AU2745999A (ja) |
CA (2) | CA2478976C (ja) |
DE (13) | DE69938979D1 (ja) |
ES (1) | ES2237087T3 (ja) |
WO (1) | WO1999055104A1 (ja) |
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- 1999-03-04 AU AU27459/99A patent/AU2745999A/en not_active Abandoned
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- 1999-03-04 EP EP20080005664 patent/EP1962529B1/en not_active Expired - Lifetime
- 1999-03-04 DE DE69938748T patent/DE69938748D1/de not_active Expired - Lifetime
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- 1999-03-04 AT AT08005658T patent/ATE468717T1/de not_active IP Right Cessation
- 1999-03-04 DE DE69942405T patent/DE69942405D1/de not_active Expired - Lifetime
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- 1999-03-04 EP EP20080008627 patent/EP1950996A3/en not_active Withdrawn
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- 1999-03-04 EP EP20070009308 patent/EP1814339B1/en not_active Expired - Lifetime
- 1999-03-04 AT AT08005665T patent/ATE468719T1/de not_active IP Right Cessation
- 1999-03-04 EP EP20080005658 patent/EP1962524B1/en not_active Expired - Lifetime
- 1999-03-04 AT AT08005664T patent/ATE468718T1/de not_active IP Right Cessation
- 1999-03-04 ES ES99907865T patent/ES2237087T3/es not_active Expired - Lifetime
- 1999-03-04 EP EP20080005665 patent/EP1962530B1/en not_active Expired - Lifetime
- 1999-03-04 DE DE69938745T patent/DE69938745D1/de not_active Expired - Lifetime
- 1999-03-04 KR KR1020007011777A patent/KR100362627B1/ko not_active IP Right Cessation
- 1999-03-04 CN CNA2006100996643A patent/CN1881861A/zh active Pending
- 1999-03-04 DE DE69941275T patent/DE69941275D1/de not_active Expired - Lifetime
- 1999-03-04 CN CNA2006100996639A patent/CN1921690A/zh active Pending
- 1999-03-04 EP EP20080005662 patent/EP1962527A1/en not_active Withdrawn
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- 1999-03-04 CA CA002329204A patent/CA2329204C/en not_active Expired - Lifetime
- 1999-03-04 WO PCT/JP1999/001051 patent/WO1999055104A1/ja active IP Right Grant
- 1999-03-04 AT AT07009307T patent/ATE439750T1/de not_active IP Right Cessation
- 1999-03-04 CN CNB998078611A patent/CN1179593C/zh not_active Expired - Lifetime
- 1999-12-20 US US09/467,063 patent/US6469995B1/en not_active Expired - Lifetime
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2002
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2005
- 2005-02-03 US US11/048,906 patent/US7218646B2/en not_active Expired - Lifetime
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2006
- 2006-03-10 US US11/372,121 patent/US7379476B2/en not_active Expired - Fee Related
- 2006-03-10 US US11/371,885 patent/US20060153145A1/en not_active Abandoned
- 2006-03-10 US US11/371,902 patent/US7206302B2/en not_active Expired - Lifetime
- 2006-04-10 US US11/400,239 patent/US7593370B2/en not_active Expired - Fee Related
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2007
- 2007-04-19 US US11/737,610 patent/US7899430B2/en not_active Expired - Fee Related
- 2007-04-19 US US11/737,602 patent/US20070286235A1/en not_active Abandoned
- 2007-05-29 US US11/754,946 patent/US20070223442A1/en not_active Abandoned
- 2007-10-31 US US11/931,592 patent/US20080069051A1/en not_active Abandoned
- 2007-10-31 US US11/931,499 patent/US20080062950A1/en not_active Abandoned
- 2007-10-31 US US11/931,375 patent/US7912015B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/931,322 patent/US20080076416A1/en not_active Abandoned
- 2007-10-31 US US11/931,882 patent/US20080076417A1/en not_active Abandoned
- 2007-10-31 US US11/931,270 patent/US7995541B2/en not_active Expired - Fee Related
- 2007-10-31 US US11/931,428 patent/US7876730B2/en not_active Expired - Fee Related
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2008
- 2008-01-25 JP JP2008015235A patent/JP4290755B2/ja not_active Expired - Lifetime
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