WO2013020402A1

WO2013020402A1 - Resource scheduling method and network element

Info

Publication number: WO2013020402A1
Application number: PCT/CN2012/075881
Authority: WO
Inventors: 邓云; 戴谦; 艾建勋; 毛磊; 许英奇
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-08-10
Filing date: 2012-05-22
Publication date: 2013-02-14
Also published as: CN102932936A

Abstract

Disclosed are a resource scheduling method and a network element. The method includes the following steps: the radio access network (RAN) side acquiring identification information used for indicating a service requested by user equipment to be an online service via the user equipment or the core network; the RAN side determining that a radio access bearer established by the user equipment is used for the online service according to the identification information; and the RAN side conducting resource scheduling on the user equipment according to the attributes and features of the online service. The present invention solves the problem in the relevant art of excessive network side signalling overhead due to a large number of online service users, reducing the frequency of the network side updating the radio resource control (RRC) connection, and improving the stability of the system.

Description

TECHNICAL FIELD The present invention relates to the field of mobile communications, and in particular, to a resource scheduling method and a network element. BACKGROUND With the development of mobile communication, people have more and more demand for mobile communication, and mobile communication has expanded from the original satisfied voice service to the need to satisfy video services and various data services. Especially with the rapid development of smart phones, new applications are emerging one after another, and the impact on mobile networks is becoming more and more significant. For example, Tencent Instant Messenger (Tencent Instant Messenger, referred to as Tencent QQ), Microsoft Network Service (MSN) and other online (online or always on) services have a significant impact on the network, BP, users for a while It will continue to communicate data with people, and will remain silent at other times. At the same time, because these applications have the characteristics of Keep Alive, users need to send a data packet that stays online at intervals, so that other users can The status of the user can be detected. In the related art, the network side usually takes the radio resource control (Radio Resource Control, referred to as RRC) connection that is established when the user does not have data transmission for a period of time. If the user needs to send data again, The network side needs to re-establish an RRC connection for the user equipment, reconfigure the security algorithm, and reconfigure the radio access bearer for data transmission. The data transmission feature of the applications such as the QQ and the MSN may cause the network side to actively release the RRC connection when there is no data transmission. When the data transmission occurs, the RRC connection needs to be established again, and the network side frequently deletes and establishes the RRC connection. If the number of users running QQ and MSN services in the network is small, the impact on the network side is small. However, if the number of such users is large (the current development trend is also increasing), the network side signaling overhead will be caused. If it is too large, it will cause overload on the network side signaling. In view of this, it is necessary to find new ways to solve the problems caused by such applications, and no effective solutions have been proposed in the related technologies. SUMMARY OF THE INVENTION The present invention provides a resource scheduling solution to solve at least the problem of excessive network-side signaling overhead caused by a large number of online service users in the related art. In order to achieve the above object, according to an aspect of the present invention, a method of resource scheduling is provided. A method for resource scheduling according to the present invention includes the following steps: The RAN side obtains, by using a user equipment or a core network, identification information indicating that the service requested by the user equipment is an online service; and the RAN side determines the user equipment according to the identifier information. The established radio access bearer is used for the online service; the RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service. Preferably, the RAN side obtains the foregoing identifier information by using the user equipment, where the RAN side obtains the identifier information by using the RRC signaling with the user equipment, where the RRC signaling includes at least one of the following: RRC connection setup complete signaling, RRC connection reconfiguration Signaling, initial direct signaling, and radio bearer setup completion signaling are completed. Preferably, the RAN side obtains the foregoing identifier information by using the core network, and the RAN side obtains the identifier information by using a level identifier QCI value of the QoS parameter in the radio access bearer setup request of the core network; or, the RAN side passes the core network. The inter-interface signaling obtains the identification information, where the interface signaling includes at least one of the following: initial context setup request signaling, radio access bearer setup request signaling, and radio access bearer assignment request signaling. Preferably, the foregoing identification information is used to identify one of the following: the user-initiated service is always activated, the user-initiated service frequently transmits data, and the user-initiated service needs to be periodically sent to maintain online information, and the user-initiated service needs to be periodically performed. Status update. Preferably, the RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service, where the RAN side maintains an RRC connection of the user equipment. Preferably, the manner in which the RAN side maintains the RRC connection of the user equipment includes one of the following: the RAN side does not release the RRC connection of the user equipment; the RAN side configures the DRX status for the user equipment; and the RAN side transfers the user equipment to the cell forward access channel. Status or cell paging channel status; The RAN side extends the period of the timer used to detect whether the online service has data transmission. Preferably, the method further includes: a time interval for the user equipment to send information to keep the online information to the RAN side; the RRC side maintaining the RRC connection of the user equipment includes: configuring, by the RAN side, a period of the DRX state according to the time interval of the information that remains online; and Or the RAN side configures a timer duration for detecting whether the online service has data transmission according to the time interval of keeping the online information. Preferably, the RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service, where the RAN reserves the configuration parameter of the radio access bearer, where the configuration parameter quality of service parameter or the radio access bearer identifier. In order to achieve the above object, according to another aspect of the present invention, a resource-relayed network element is also provided. The network element of the resource scheduling according to the present invention is located at the RAN side, and the network element includes: an obtaining module, configured to acquire, by using the user equipment or the core network, identifier information for indicating that the service requested by the user equipment is an online service; The determining module is configured to determine, according to the identifier information, that the radio access bearer established by the user equipment is used for the online service, and the scheduling module is configured to: when the determining module determines that the radio access bearer established by the user equipment is used for the online service, The attribute feature of the online service implements resource scheduling for the user equipment. Preferably, the network element of the resource scheduling is a base station in the LTE system or a radio network controller in the UMTS. The RAN side detects that the established radio access bearer is used for the online service of the user equipment without data transmission. In this case, the method of maintaining the RRC connection of the user equipment solves the problem that the network side signaling overhead is too large due to the large number of online service users in the related art, reduces the frequency of updating the RRC connection on the network side, and improves the stability of the system. Sex. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a method for resource scheduling according to an embodiment of the present invention; FIG. 2 is a structural block diagram of a network element for resource scheduling according to an embodiment of the present invention; FIG. 3 is a block diagram of a network element according to a second embodiment of the present invention; FIG. 4 is a schematic diagram of a process of establishing a service by a UE according to Embodiment 3 of the present invention; FIG. 5 is a schematic diagram of a mapping relationship of a QCI according to Embodiment 4 of the present invention; FIG. 6 is a schematic diagram of a mapping relationship of a QCI according to Embodiment 4 of the present invention; A schematic diagram of a process for a UE to establish a new service. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. According to an embodiment of the present invention, a method for resource scheduling is provided. FIG. 1 is a flowchart of a method for resource scheduling according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps: Step S102: The radio access network (Radio Access Network, hereinafter referred to as RAN) obtains, by using the user equipment or the core network, identifier information for indicating that the service requested by the user equipment is an online service. Step S104: The RAN side determines, according to the identifier information, The radio access bearer established by the user equipment is used for the online service. Step S106: The RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service. Through the above steps, the RAN side maintains the RRC connection mode of the user equipment when the RAN side detects that the established radio access bearer is used for the user equipment of the online service, and solves the problem that the number of online service users is large in the related art. The problem of excessive signaling overhead on the network side reduces the frequency of updating the RRC connection on the network side and improves the stability of the system. For example, in step S106, the RAN side still maintains the RRC connection of the user equipment if it detects that the user equipment has no data transmission. Preferably, in step S102, the RAN side obtains the foregoing identifier information by using the user equipment, where the RAN side obtains the foregoing identifier information by using RRC signaling with the user equipment, where the RRC signaling includes at least one of the following: RRC connection establishment complete message RRC connection reconfiguration completion signaling, initial direct signaling, and radio bearer setup completion signaling. This method can increase the flexibility of the system. Preferably, in step S102, the RAN side obtains the foregoing identifier information by using the core network, where the RAN side obtains a QoS Class Identifier (QCI) value of the QoS parameter in the request for establishing a radio access bearer with the core network. Obtaining the foregoing identifier information; or, the RAN side obtains the foregoing identifier information by using interface signaling with the core network, where the interface signaling includes at least one of the following: initial context setup request signaling, and radio access bearer setup request signaling , radio access bearer assignment request signaling. This method can increase the flexibility of the system. Preferably, the foregoing identification information is used to identify one of the following: the user-initiated service is always activated, the user-initiated service frequently transmits data, and the user-initiated service needs to be periodically sent to maintain online information, and the user-initiated service needs to be periodically performed. Status update. This method can improve the effectiveness of the system. Preferably, the RAN side is a base station in a Long Term Evolution (LTE) system or a wireless network controller in a Universal Mobile Telecommunications System (UMTS). Preferably, in step S106, the RAN side maintains an RRC connection of the user equipment. Preferably, the manner in which the RAN side maintains the RRC connection of the user equipment includes the following: the RAN side does not release the RRC connection of the user equipment; the RAN side configures the discontinuous reception (DRX) status for the user equipment; The user equipment transits to a cell forward access channel (Cell FACH) state or a cell paging channel (Cell PCH) state; the RAN side extends a period of a timer for detecting whether the online service has data transmission. This method can increase the flexibility of the system. Preferably, the method further includes: a time interval for the user equipment to send information to keep the online information to the RAN side; the RRC side maintaining the RRC connection of the user equipment includes: the RAN side configuring the period of the DRX state according to the time interval of the information that remains online and/or Configure the timer duration for detecting whether the online service has data transmission. This method can improve the accuracy of the system. Preferably, in step S106, the RAN reserves the configuration parameter of the radio access bearer, where the configuration parameter quality of service parameter or radio access bearer identifier. This method can improve system efficiency. Corresponding to the foregoing method, the embodiment of the present invention further provides a network element for resource scheduling. 2 is a structural block diagram of a network element for resource scheduling according to an embodiment of the present invention. As shown in FIG. 2, the network element is located at a RAN side of a radio access network, and the network element includes: an obtaining module 22, configured to pass through a user equipment or The core network obtains the identifier information for indicating that the service requested by the user equipment is an online service; the determining module 24 is coupled to the obtaining module 22, and is configured to determine, according to the identifier information, that the wireless access bearer established by the user equipment is used for the online service; The scheduling module 26 is coupled to the determining module 24, and configured to perform resource scheduling on the user equipment according to the attribute feature of the online service if the determining module 24 determines that the radio access bearer established by the user equipment is used for the online service. The method for maintaining the RRC connection of the user equipment in the case that the user equipment for the online service is detected has no data transmission, and the number of online service users is large in the related art. The problem of excessive signaling overhead on the network side is reduced, and the frequency of updating the RRC connection on the network side is reduced, and the stability of the system is improved. Preferably, the network element is a base station in an LTE system or a radio network controller in a UMTS. The implementation process of the above embodiment will be described in detail below in conjunction with the preferred embodiments and the accompanying drawings. The first embodiment provides a method for resource scheduling, that is, the RAN side learns that the radio access bearer established by the user equipment is used for online service, and the RAN side implements resource scheduling according to the solution, thereby solving the problem caused by the online service to the network. Frequently delete/establish RRC connection problems. During the implementation, the RAN side can learn the radio access bearer established by the user equipment for online services in two ways. The RAN side learns, by the user equipment, the radio access bearer established by the user equipment for the online service: the RAN side learns the information of the online service by using the RRC signaling, where the RRC signaling may be completed but not limited to the RRC connection establishment. The RRC connection reconfiguration completes, the initial direct transmission, or the radio bearer setup complete signaling. The second mode is that the RAN side learns, by using the core network, the radio access bearer established by the user equipment for the online service: between the RAN side and the core network The interface signaling obtains information about the online service, where the interface signaling may be, but is not limited to, an initial context setup request, a radio access bearer setup request, or a radio access bearer assignment request. Preferably, in the second mode, if the RAN side learns that the radio access bearer established by the user equipment is used for the online service through the core network, the core network may represent the online service by using the newly introduced QCI value. Preferably, the online service may be one of the following: the user-initiated service has a feature that is always activated; the user-initiated service has the feature of frequently transmitting data; the user-initiated service needs to periodically send the information that remains online; the user-initiated service Status updates are required periodically. Preferably, the online service may also be a time interval in which the information to be kept online is periodically transmitted, or a time interval in which the status update is periodically performed. It should be noted that the RAN side may include a base station in an LTE system or a radio network controller in a UMTS system. The implementation of the resource scheduling by the RAN side may include: the RAN side maintains the RRC connection of the user equipment, or the RAN side sets a longer timer for detecting whether the online service has data transmission. For example, the RRC side can maintain the RRC connection of the user equipment. The RAN side does not actively release the RRC connection of the UE, and the RAN side can configure the UE to be in the DRX state or the Cell FACH and Cell PCH states. In this embodiment, the RAN side learns from the user equipment or the core network that the user establishes an online service, and then adopts a special processing method on the resource scheduling, and does not actively release the RRC connection of the user equipment, so that the user equipment can be sent again. Data or sending data packets that remain online do not need to establish an RRC connection again, reducing the impact on the core network. Embodiment 2 This embodiment uses an LTE system as an example for description. It is assumed that the user equipment (User Equipment, UE for short) in the LTE system resides in the cell 1 under the jurisdiction of the base station 1, and is in an idle state, and the UE expects to carry out the MSN service. The process of establishing a business. 3 is a schematic flowchart of a UE establishing a service according to Embodiment 2 of the present invention. As shown in FIG. 3, the process includes the following steps: Step S301: A UE sends an RRC connection request to an RRC connection request to a base station 1. The identification information of the UE and the establishment cause (Establishment Cause) are carried in, and the reason for establishing the data service initiated by the user is established here. Step S302: After receiving the RRC connection request, the base station 1 allocates radio resources to the UE, and sends an RRC connection setup signaling (RRC Connection Setup) to the UE. Step S303: After receiving the RRC connection setup signaling, the UE applies the parameter configuration thereof to return the RRC Connection Setup Complete signaling to the base station 1. The signaling further includes service request information of the UE (belonging to the non-access stratum). In order to achieve the purpose of the embodiment, the UE further includes a new cell indicating the online service (Always On or online) in the RRC connection setup complete signaling. After obtaining the information of the online service, the base station 1 needs to save and apply it to the subsequent resource scheduling. The information indicating the online service here may be one of the following information: the user-initiated service has the feature of being activated all the time; the user-initiated service has the feature of frequently transmitting data; the user-initiated service needs to periodically send and maintain the online information; User-initiated services require periodic status updates. Preferably, the information indicating the online service may further include a time interval for periodically transmitting the information that remains online, or a time interval for periodically performing the status update. It should be noted that, in this embodiment, the UE may send signaling of the online service to the base station 1 by using the RRC connection setup complete signaling, and the UE may also send the signaling to the base station 1 by using other RRC signaling, such as RRC connection reconfiguration completion signaling. Signaling of online services. Step S304, the base station 1 sends a service request of the UE to the core network, and the core network authenticates the UE. After the authentication succeeds, the configuration parameters and the security configuration of the radio access bearer (Radio Access Bearer, RAB) are sent to the base station 1. parameter. Step S305, the base station 1 sends a security mode command (Security Mode Command) to the UE, and configures an encryption algorithm and an integrity protection algorithm for the UE. Step S306, the UE applies the encryption algorithm and the integrity protection algorithm therein to return the security mode completion signaling (Security Mode Complete) to the base station 1. Step S307: The base station 1 sends an RRC Connection Reconfiguration (RRC Connection Reconfiguration) to the UE, where the configuration parameters of the Data Radio Bearer (DRB) and the measurement configuration parameters are included. The data radio bearer is used for transmitting data, and corresponds to the radio access bearer in step S304. Step S308, the UE applies the configuration parameters therein, and returns the RRC connection reconfiguration complete signaling to the base station 1.

(RRC Connection Reconfiguration Complete) So far, the base station 1 establishes a bearer for data transmission for the UE, and the UE can perform services. The UE frequently transmits data during certain time periods, and is basically in a silent state at other times (only at this time) Sending the data packet that remains online, and the time interval for transmitting the online data packet is related to the MSN service, which is assumed to be 2 minutes in this embodiment. The base station 1 allocates radio resources to the UE when it has data transmission, so that it can be transmitted in time. When there is no data transmission, the base station 1 usually starts a timer. If there is no data transmission after the timer expires, the base station 1 will actively release the RRC connection established by the UE. The short time, for example, 10 seconds, is mainly to save radio resources. However, in this embodiment, since the base station 1 learns that the UE establishes an online service through the RRC connection setup complete signaling, the base station 1 detects that the UE has no data transmission. After the RRC connection of the UE is not released, the RRC connection is continued; In order to save radio resources and save power consumption of the UE, the base station 1 can configure the UE with a discontinuous reception state (DRX state). For example, in the implementation process, the base station 1 can perform RRC signaling, such as RRC connection reconfiguration (RRC Connection). Reconfiguration ) Configure DRX related parameters for the UE, such as duration timer ( onDurationTimer ) DRX activity timer ( drx-Inactivity Timer ) DRX retransmission timer ( drx-RetransmissionTimer ) DRX cycle (can contain two cycles, one is called It is a long-period longDRX-Cycle, one is called short-cycle shortDRX-Cycle; or it is only longDRX-Cycle), and the DRX start offset value ( drxStartOffset ).

After the UE obtains the configuration parameters of DRX, it satisfies the formula [( SFNx lO) +subframe number] modulo ( longDRX-Cycle) =drxStartOfFset; or satisfies the formula [ ( SFNx lO) + subframe number] modulo ( shortDRX-Cycle = (drxStartOffset) modulo (shortDRX-Cycle) sub-frame, start onDurationTimer, where SFN is the system nickname, subframe number is the nickname, and modulo is the modulo operation. Then, the UE will periodically listen to the Physical Downlink Control Channel (PDCCH) with a longDRX-Cycle or shortDRX-Cycle cycle, and at least "wake up" the onDurationTimer length at a time (the UE starts to be in an active state at this time). , the time when the UE is in an active state is called Active Time, Active Time can be greater than or equal to onDurationTimer). The time during which the UE wakes up to monitor the PDCCH is also called OnDuration. Because the online service carried out by the UE has a relatively long interval of Keep Alive data packets, the base station 1 configures the UE with a longer DRX cycle (such as 1280 milliseconds) and configures a shorter onDurationTimer (such as 1 millisecond). In this way, the UE does not need to receive the PDCCH for a long period of time, which helps save power; and at the same time, since the base station 1 maintains the UE in the RRC connected state, when the UE needs to resend the data packet or transmit data that is kept online, The process of reconstructing the RRC signaling can be omitted, and the impact on the core network can be greatly reduced. It can be seen that, in this embodiment, after detecting that the UE has no data transmission, the base station 1 does not release the RRC connection of the UE, but continues to maintain the RRC connection, and the base station 1 can also set a longer timer, such as 5 minutes. 10 seconds in the related art, for detecting whether the user equipment has data transmission, if there is no data transmission within 5 minutes, the base station 1 can actively release the RRC connection of the UE; if there is data within 5 minutes After the transmission, the base station 1 needs to continue to maintain the RRC connection of the UE. After the data transmission ends, the timer is started again to detect whether there is data transmission for the next 5 minutes. In particular, if the UE sends a periodic time interval for transmitting the information to keep the line to the base station 1, the base station 1 can configure the period of the DRX according to this, and set the timer duration of the probe data transmission accordingly (only need to be greater than or equal to the time interval). Embodiment 3 This embodiment is described by taking UMTS as an example. It is assumed that the UE2 resides in the cell 2 under the base station 2 and is in an idle state, and the base station 2 is under the jurisdiction of a Radio Network Controller (RNC). UE2 expects to carry out the QQ business, which establishes the business process. 4 is a schematic flowchart of a UE establishing a service according to Embodiment 3 of the present invention. As shown in FIG. 4, the process includes the following steps: Step S401: UE2 sends an RRC connection request to an RNC in the connection request. , carrying the identification information of UE2 and establishing the reason. Step S402: After receiving the RRC connection request, the RNC allocates radio resources to the UE2, and sends an RRC connection setup signaling (RRC Connection Setup) to the UE2. Step S403, after receiving the RRC connection setup signaling, the UE2 applies the parameter configuration thereof to return to the RNC.

RRC Connection Setup Complete _{0 (} step S404), UE2 sends Initial Direct Transfer (IC) signaling to the RNC, where the signaling includes UE2's service request information, and also in the signaling. Contains cells indicating that the requested service is an online service. It should be noted that, in this embodiment, the UE may transmit the information of the online service established by the UE to the RNC through the initial direct transmission, and the UE may also transmit the information of the online service to the RNC through the radio bearer setup completion signaling. Step S405: After receiving the initial direct signaling, the RNC saves the received information of the requested service as an online service, and then sends a service request of the UE2 to the core network, and the core network authenticates the UE2. After the authentication succeeds, The RNC sends the configuration parameters of the Radio Access Bearer (RAB). In this step, a process of configuring a security mode is also included, and the purpose is to configure an encryption algorithm and an integrity protection algorithm for UE2. Step S406: The RNC sends a Radio Bearer Setup (Radio Bearer Setup) to the UE2, where the configuration parameters of the Data Radio Bearer (DRB) are included. The radio bearer is used for transmitting data, and corresponds to the radio access bearer in step S405 described above. Step S407, the UE2 applies the configuration parameters in the radio bearer setup signaling, and then returns the radio bearer setup complete signaling (Radio Bearer Setup Complete) to the RNC. So far, the RNC has established a bearer for data transmission for UE2, and UE2 can carry out services. UE2 frequently transmits data during certain time periods, and is basically in a silent state at other times (only the data packets that remain online are sent at this time, and the time interval for sending and maintaining online data packets is related to the QQ service, which is assumed in this embodiment. For 3 minutes). Generally, if the UE has a large amount of service data, the RNC configures the UE in the Cell DCH state when it has data transmission, so that it can transmit data in time; when the amount of data is reduced or there is no data transmission, the RNC usually starts a timing. (T1) detects the amount of data. If the amount of data transmitted is still small or no data is transmitted after the timer expires, the RNC will forward the UE to the Cell Forward Access Channel (Forward Access Channel, Referred to as FACH) state, the UE uses the common channel of the network to transmit data; if the UE still has no data transmission in the Cell FACH state for a period of time (T2), the RNC will transfer the UE to the Cell paging channel (Paging Channel, referred to as For the PCH) (or URAPCH) state or directly release the RRC connection established by the UE; if the UE still has no data transmission in the Cell PCH state for a period of time (T3), the RNC will release the RRC connection established by the UE. In this embodiment, since the RNC learns that the UE2 is establishing an online service, the RNC detects that

When UE2 has no data transmission, the UE2 is transferred to the Cell FACH state or the Cell PCHC or URA PCH) state, so that the UE2 can consume less power; and the RNC maintains the UE2 in the RRC connection state (the UE2 is in the Cell FACH or PCH state). When the RRC connection needs to be sent again, when the UE2 needs to send the data packet or the transmission data that is kept online, the process of reestablishing the RRC signaling can be omitted, and the impact on the core network can be greatly reduced. Embodiment 4 In the LTE system, it is assumed that the UE is located in the cell 3 under the control of the base station 3, and is already in a connected state. The radio access bearer established by the UE (indicated here by RAB1) is an ordinary data service and a non-online service. At this time, the UE needs to create a new online service, and the UE sends a non-access stratum signaling request to establish a new service through the established RRC connection. The process of establishing the service for the UE after receiving the core network may include the following steps: Step S501, core The network sends a radio access bearer setup request (E-RAB Setup Request) to the base station 3, and the configuration parameters including the new service in the request include the identifier of the radio access bearer (here denoted by RAB2), the transport layer address, and the wireless connection. The quality of service parameters of the inbound bearer, where the QoS parameters include: QoS Class Identifier (QCI); Allocation and Retention Priority (referred to as Allocation and Retention Priority) ARP); Optionally, there are parameters such as the guaranteed downlink bit rate of the uplink and downlink bit rate. Since the core network has learned that the service that the UE expects to establish is an online service, the core network adds a new message indicating that the wireless access bearer is an online service (Always On or Online) in the radio access bearer setup request sent to the base station 3. yuan. The information indicating that the radio access bearer is an online service may be one of the following information: a user-initiated service has a feature of being always activated; a user-initiated service has a feature of frequently transmitting data; and a user-initiated service needs to be periodically sent. Keep online information; User-initiated services require periodic status updates. Preferably, the information indicating that the radio access bearer is an online service may further include a time interval for periodically transmitting information that remains online, or a time interval for periodically performing status update. Step S502: After receiving the radio access bearer setup request, the base station 3 learns the configuration parameters of the bearer, and obtains information that the bearer is an online service. The base station 3 configures the radio resource and the parameters configured on the air interface according to the configuration parameters of the bearer, and sends the radio connection reconfiguration signaling to the UE, where the base station 3 includes the resource information allocated by the base station 3. After the base station 3 learns that the online service information is established by the UE, it saves it for later parameter configuration and resource scheduling. Step S503, after receiving the radio connection reconfiguration signaling, the UE applies the configuration parameter therein, and then sends the configuration parameter to the base station.

3 Send the wireless connection reconfiguration complete signaling. Step S504: After receiving the reconfiguration complete signaling, the base station 3 sends a radio access bearer setup response signaling (E-RAB Setup Response) to the core network. At this point, the UE has established a new online service that can conduct business. Since the UE establishes the RAB1 and the RAB2, the base station 3 needs to comprehensively consider the service characteristics of the two bearers to reasonably configure the radio resources (such as configuring the DRX parameters), so that the data transmission requirements of the two bearers can be better. Power saving. In this embodiment, the base station 3 learns that the RAB2 is an online service. Therefore, even if the base station 3 detects that the RAB2 has no data transmission for a period of time, the base station 3 retains the parameter configuration of the RAB2, for example, the quality of service parameter and the radio access bearer identifier. The information is such that the UE can re-establish the process of re-establishing the radio access bearer for the RAB2 to resend the data packet or the data to be re-established, which can reduce the impact on the core network. Preferably, if the base station 3 releases the RAB1, the base station 3 can configure the discontinuous reception state for the UE in order to save radio resources and save the power consumption of the UE, and a longer DRX cycle can be configured. The base station 3 needs to maintain the RRC connection state of the UE, so that the UE can transmit the data packet that remains online again, and can cause the UE to transmit data again when needed (new data transmission on the RAB2). The base station 3 releases the RAB2 established by the UE and releases the RRC connection established by the UE, only after the UE initiates the service release (RAB2 release) request, or the core network sends a request for releasing the RAB2 to the base station 3. It can be seen that, in this embodiment, the UE has established the RAB1, and when the RAB2 is newly established, the information that the newly established bearer is the online service is transmitted to the base station 3 through the radio access bearer setup request. If the UE is initially in an idle state, the first established radio access bearer of the UE is an online service, and the core network transmits the information of the established online service to the base station 3 through an Initial Context Setup Request. In the implementation process, the base station 3 does not release the RRC connection of the UE after detecting that the UE has no data transmission, but continues to maintain the RRC connection, and the base station 1 can also set a longer timer (for example, 6 minutes) for Detect whether the RAB2 established by the user equipment has data transmission. If there is no data transmission within 6 minutes, the base station 3 can actively release the RAB2; if there is data transmission within 6 minutes, the base station 3 needs to continue to maintain the established RAB2. , Start the timer again after the end of the data transmission to detect whether there is data transmission for the next 6 minutes. Preferably, the core network may add information indicating the online service by adding a cell in the radio access bearer setup request. For example, this embodiment may also have other implementation manners. FIG. 5 is a schematic diagram of a QCI mapping relationship according to Embodiment 4 of the present invention. As shown in FIG. 5, the QCI included in the quality of service parameters of the radio access bearer is present. In some protocols, QCI can take 1 to 9. According to different services, the QCI of the core network configuration is different. In the existing QCI mapping relationship, no independent QCI is set for the online service. In this embodiment, the base station is configured. 3 It can be known that the established radio access bearer is different from the existing bearer, and a new QCI value needs to be introduced. For example, when the QCI is 10, it indicates that the established radio access bearer is an online service, and the base station 3 knows that the QCI is equal to 10. It is an online business and requires a special resource scheduling strategy. Embodiment 5 In the UMTS system, it is assumed that the UE is located in the cell 1 under the jurisdiction of the base station 1 managed by the RNC, and is in an idle state. The UE needs to conduct an online service, and the process of establishing a service. FIG. 6 is a schematic diagram of a process for a UE to establish a new service according to Embodiment 5 of the present invention. As shown in FIG. 6, the process includes the following steps: Step S601: A UE initiates a random access in a cell 1 and an RRC connection established with the RNC. Step S602: The UE sends Initial Direct Transfer signaling to the RNC, where the signaling includes the service request information of the UE. Step S603: After receiving the initial direct signaling, the RNC sends an initial UE message (initial UE message) to the core network, where the RNC includes the service request of the UE. The step may further include: the core network authenticates the UE, and after the authentication succeeds, configure a security algorithm for the UE. Step S604: After the core network learns the service request of the UE, configure the parameters of the radio access bearer for the UE, and the core network sends a radio access bearer assignment request (RAB Assignment Request), where the configuration parameters of the radio access bearer are included. At the same time, the core network finds that the UE requests to establish an online service, so the core network includes the cells of the online service in the radio access bearer assignment request. Step S605: After receiving the radio access bearer assignment request, the RNC allocates radio resources to the UE according to the configuration parameters, and the RNC sends a radio bearer setup signaling (Radio Bearer Setup), where the data radio bearer is included. Configuration parameters for DRB). The data radio bearer is used for transmitting data, and corresponds to the radio access bearer in step S604. In this embodiment, the RNC learns that the information established by the UE is the online service, saves it, and uses it in the subsequent resource scheduling. Step S606: After receiving the radio bearer setup signaling, the UE applies the configuration parameters therein, and then returns a radio bearer setup complete signaling to the RNC. Step S607: After receiving the radio bearer setup complete signaling, the RNC sends a radio access bearer assignment response signaling (RAB Assignment Response) to the core network. So far, the RNC establishes a bearer for data transmission for the UE, and the UE can conduct services. If the amount of service data of the UE is large, the RNC is configured in the Cell DCH state; if the amount of service data of the UE is small or there is no data transmission for a long time, the RNC transfers the UE to the Cell FACH or Cell PCH state, but the RNC The RRC connection of the UE is not actively released, because the RNC learns that the UE establishes an online service, and the UE may have The bursty data needs to be transmitted, and the services carried out by the UE periodically send data packets that remain online. The RNC maintains the RRC connection of the UE, so that the UE does not need to reestablish the RRC connection when transmitting data again, and has less impact on the core network. At the same time, the UE is in the Cell FACH or the Cell PCH, which can save power and save resources of the air interface. In summary, in the embodiment of the present invention, when the RAN side detects that the established radio access bearer is used for the online service, the user equipment maintains the RRC connection mode of the user equipment, and the related technology is solved. The problem of excessive signaling overhead on the network side due to the large number of online service users reduces the frequency of updating the RRC connection on the network side and improves the stability of the system. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for resource scheduling, comprising the following steps:

The RAN side obtains, by using the user equipment or the core network, identifier information for indicating that the service requested by the user equipment is an online service;

Determining, by the RAN side, the radio access bearer established by the user equipment, for an online service, according to the identifier information;

The RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service.

The method according to claim 1, wherein the acquiring, by the RAN side, the identifier information by using the user equipment includes:

The RAN side obtains the identifier information by using the radio resource control RRC signaling of the user equipment, where the RRC signaling includes at least one of the following: RRC connection setup complete signaling, RRC connection reconfiguration complete signaling Initial direct signaling, radio bearer setup completion signaling.

The method according to claim 1, wherein the acquiring, by the RAN side, the identifier information by using a core network includes:

And obtaining, by the RAN side, the identifier information by using a level identifier QCI value of a quality of service parameter in a radio access bearer setup request of the core network; or

The RAN side obtains the identifier information by using interface signaling with the core network, where the interface signaling includes at least one of the following: initial context setup request signaling, and radio access bearer setup request signaling. , radio access bearer assignment request signaling.

The method according to claim 2 or 3, wherein the identifier information is used to identify one of the following: a user-initiated service is always activated, a user-initiated service frequently transmits data, and a user-initiated service needs to be periodically sent. Maintaining online information and user-initiated services requires periodic status updates.

The method according to claim 1, wherein the RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service, including:

The RAN side maintains a radio resource control RRC connection of the user equipment.

The method according to claim 5, wherein the manner in which the RAN side maintains the RRC connection of the user equipment includes one of the following: The RAN side does not release the RRC connection of the user equipment; the RAN side configures the user equipment to perform a discontinuous reception DRX state;

Transmitting, by the RAN side, the user equipment to a cell forward access channel state or a cell paging channel state;

The RAN side extends a period of a timer for detecting whether the online service has data transmission. The method according to claim 5, wherein the method further comprises: the user equipment transmitting a time interval for maintaining the online information to the RAN side; the RRC side maintaining the RRC connection of the user equipment comprises: The RAN side configures a period of the DRX state according to the time interval of the information that remains online; and/or the RAN side configures a timing for detecting whether the online service has data transmission according to the time interval of the information that remains online. The length of the device. The method according to claim 1, wherein the RAN side performs resource scheduling on the user equipment according to the attribute feature of the online service, including:

The RAN reserves configuration parameters of the radio access bearer, where the configuration parameter is a service quality parameter or a radio access bearer identifier. A network element for resource scheduling, the network element is located at a RAN side of the radio access network, and the network element includes: an obtaining module, configured to obtain, by using a user equipment or a core network, a service that is used to indicate that the user equipment requests Identification information of online business;

a determining module, configured to determine, according to the identifier information, that the radio access bearer established by the user equipment is used for an online service;

And a scheduling module, configured to perform resource scheduling on the user equipment according to an attribute feature of the online service, where the determining module determines that the wireless access bearer established by the user equipment is used for an online service. The network element according to claim 9, wherein the network element is a base station in a Long Term Evolution LTE system or a radio network controller in a Universal Mobile Telecommunications System (UMTS).