CN1996784A - A method for sensing the pilot frequency, collecting the network information, and broadcasting them to the terminal - Google Patents
A method for sensing the pilot frequency, collecting the network information, and broadcasting them to the terminal Download PDFInfo
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Abstract
This invention discloses one method to apply sensor guide frequency channel collection network information to terminal broadcast, which comprises the following steps: the signal channel uses outer sensor guide frequency signal channel for frequency collection to collect each point of frequency outer network information; the inner sensor signal channel is of local area broadcast inner network information stored in wireless interface network to form cross guide frequency signal channel network structure.
Description
Technical field
The present invention relates to a kind of in heterogeneous communication system the network information compile and broadcasting method, particularly use the perception pilot frequency channel collection network information and to the method for terminal broadcasting about a kind of.
Background technology
At present, telecommunications world is experiencing some basic changes to adapt to the user's request that increases day by day and change irregularly.The most interesting research point is at wireless communication field, and main purpose is to realize quicker, easy communication.Existing wireless communication technology comprises multiple wireless access standard: gsm system, gprs system, UMTS system, BWA, WLAN (wireless local area network), digital picture broadcast system (DVB), CDMA2000 system, PHS system, satellite communication, satellite fix and various short-range communication standard.Because the difference of design object and range of application, these equipment will be extensively, be present in our life chronically.These are the wireless communication system of a distribution on global collaborative work of wireless access technology composition independently, is referred to as heterogeneous wireless communication system.Its target is the requirement according to the user, under acceptable cost performance condition, with collaborative mode be the user provide have novelty, the quality services more of otherness.This just means that Virtual network operator can use different wireless access technologys to provide suitable service as the user under different time and specified conditions such as space.Terminal (reshuffling terminal) with the ability of reshuffling selects to insert the network that is fit to according to user preference, network context and business need.Therefore, to finish the network selecting access most important for grasp network information counterweight configurating terminal promptly and accurately.But dynamic frequency spectrum deployment (DynamicSpectrum Allocation, DSA) and flexible spectrum management (Flexible SpectrumManagement, FSM) etc. the application of dynamic frequency spectrum deployment scheme makes and reshuffles the operation frequency range that terminal can't be determined the different radio access network in time, accurately.At this moment, reshuffle terminal and must carry out full range scanning to find current alternative Radio Access Network and to move frequency range accordingly.But this process is consuming time long, thereby and can consume a large amount of electric energy and shorten terminal service time, even carry out full range scanning, because it is limited to reshuffle the reconfiguration software of terminal storage, self reprovision can not be set to every kind of wireless access technology and scan finding corresponding Radio Access Network, and the stride of scanning also there is tremendous influence to scanning result.As seen, full range scanning can not really solve the problem that terminal can't obtain the network information of reshuffling in the heterogeneous wireless communication system.
At present, the scheme of head it off have only the band outer perception pilot channel (the out-bandCognitive Pilot Channel, CPC).The outer perception pilot channel of this band is used the consistent frequency range broadcast network information in the whole world.Thereby reshuffle terminal and finish the network selecting access by monitoring this perception pilot frequency channel extraction network information.But there is certain problem in the outer perception pilot channel of this band.At first, because the spectrum allocation schemes of various countries is relatively independent at present, be difficult to find the outer perception pilot channel of frequency range carrying band of one section global general-use; Secondly, because the outer perception pilot channel of this band carries out the broadcasting of the network information in the world, its amount of information is huge, even exist such global general-use frequency range also to be not enough to carry so huge amount of information so.Therefore, propose a kind of scheme and divide three levels to broadcast global network information: ground floor: country's layer, information comprises: country code; The second layer: the operation quotient sheaf, information comprises: the code of each operator in this country; The 3rd layer: the Radio Access Network layer, information comprises: the Radio Access Network code of this operator's operation and operation frequency range thereof.Still there is defective in this scheme: reshuffle terminal can't be learnt the Radio Access Network of its operation before determining operator situation, just can't obtain the comprehensive network information.
Based on analysis to the demand and present Research, solve the problem that the network information provides in the existing heterogeneous wireless communication system, we have designed a kind of method of using the perception pilot frequency channel collection network information and broadcasting to terminal.The network selecting access that the configurating terminal of attaching most importance to provides in time, thereby accurate, the comprehensive network information realizes fast, optimizes.
Summary of the invention
The present invention has overcome deficiency of the prior art, and a kind of method of using the perception pilot frequency channel collection network information and broadcasting to terminal is provided.Method of the present invention is network aware and the selectivity access that terminal provides in time, thereby accurate, the comprehensive network information realizes fast, optimize of reshuffling in the heterogeneous network.
According to the present invention, a kind of method of using the perception pilot frequency channel collection network information and broadcasting to terminal is provided, described method comprises step:
Be with the outer perception pilot channel frequency set of outer perception pilot channel utilization band, simultaneously the identical band outer network information of each frequency broadcasting in described frequency set;
Perception pilot frequency channel is the network information in this Cell Broadcast CB band on the downlink broadcast channel of existing wireless access network in the band, thereby perception pilot frequency channel constitutes joint pilot channel network framework in outer perception pilot channel of band and the band,
Wherein the outer perception pilot channel transmitting base station of band adopts the Da Qu system to cover, and the perception pilot frequency channel transmitting base station adopts the sub-district to cover in the band.
Preferably, the outer perception pilot channel of described band is independent of any Radio Access Network, and utilizes the global general-use channel to broadcast band outer network information in the world.
Preferably, described band outer network information comprises country code, operator code, Radio Access Network type and moves frequency range accordingly.
Preferably, the outer perception pilot channel frequency set of described band takies situation by various countries according to national frequency spectrum resource allocation strategy and frequency spectrum provides national operational idle frequency to form.
Preferably, in described Da Qu, exist multiple Radio Access Network.
Preferably, perception pilot frequency channel is divided into down channel and up channel in the described band.
Preferably, described down channel is used for broadcasting the network information in the band in this sub-district.
Preferably, the network packets of information is drawn together this subzone network information and adjacent subzone network information in the described band.
Preferably, described subzone network information comprises identical information unit with adjacent subzone network information, and the concrete numerical value of each information unit has nothing in common with each other according to each cell wireless communication networks environment.
Preferably, described information unit comprises the network information unit that universal network information unit and terminal are used for network selecting and reshuffle.
Preferably, described universal network information unit comprises: country code, operator code, Radio Access Network type and move frequency range accordingly.
Preferably, described terminal is carried out the required network information unit of network selecting and is comprised: network utilization, obtainable QoS, service fee, power consumption, fail safe, mobility and switch smoothness.
Preferably, described terminal is reshuffled required network information unit and is comprised: reshuffle required downloaded software type, size, manufacturer, version number, download channels code and transport-type.
Preferably, described transport-type comprises broadcasting, multicast, clean culture.
Preferably, described adjacent sub-district is relative this sub-district, and the network operator of each sub-district safeguards the adjacent cell list of oneself.
Preferably, comprise three kinds of adjacent sub-districts in the described adjacent cell list: horizontal switching cell, vertical switching cell, software download sub-district.
Preferably, described horizontal switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and two sub-districts use identical wireless access technologys, and terminal is switched during this time and be need not to reshuffle.
Preferably, described vertical switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and different wireless access technologys is used in two sub-districts, and terminal is switched during this time and must be reshuffled.
Preferably, wherein said software download sub-district is meant to the assurance reconfiguration course and in time finishes that terminal need be fulfiled the download work of reshuffling required software ahead of schedule, and the adjacent sub-district of design.May not exist between adjacent sub-district and this sub-district and cover overlapping going or the common cell border.Preferably, described up channel is used for terminal to the perception pilot frequency channel server feedback network information.
Preferably, method of the present invention also comprises step:
No matter at state of activation or holding state, the terminal that the cognitive radio module has been installed can detect network environment, and will detect the base station or the access point that up channel feeds back to Radio Access Network that pass through of property information cycle,
Base station or access point feed back to the perception pilot frequency channel server by the network information of cable network self terminal in future,
The perception pilot frequency channel server stores is also analyzed feedback information,
The network information sends to each base station or access point in the band that will upgrade according to the position of each sub-district, and the band outer network information that will upgrade sends to the outer perception pilot channel transmitting base station of band.
Compared with prior art, the invention has the beneficial effects as follows: (1) has realized that the whole world of the outer perception pilot channel of band covers and solve the problem of the outer perception pilot channel bandwidth deficiency of band; (2) having overcome by different level, broadcasting makes terminal can't obtain the shortcoming of the network information comprehensively; (3) make full use of existing Radio Access Network channel and carry out broadcast of network information, easy to implement; (4) in time, accurately designed information updating method for the network information that guarantees perception pilot frequency channel; (5) thus the configurating terminal of attaching most importance to provides in time, accurately, the comprehensively network information network selecting access that realizes fast, optimize; (6) this method such as has solved in indoor, underground environment, mountain area at the covering problem that covers the perception pilot frequency channel in undesirable zone.
Description of drawings
Fig. 1 is the network architecture of uniting in the band, being with outer perception pilot channel according to of the present invention;
Fig. 2 is the embodiment according to the outer perception pilot channel frequency set of band of the present invention;
Fig. 3 is according to application scenarios of the present invention;
Fig. 4 is Neighboring Cell List and an adjacent area type among Fig. 3;
Fig. 5 is according to band outer network information element of the present invention;
Fig. 6 is according to network information element in the band of the present invention.
Embodiment
According to basic design of the present invention, application perception pilot frequency channel collection network information of the present invention and the method for broadcasting to terminal, comprise and be with outer perception pilot channel to use a kind of specific wireless access technology, utilize the channel of global general-use to broadcast band outer network information in the world, band outer network information comprises country code, operator code, Radio Access Network type and moves frequency range accordingly.The outer perception pilot channel of described band constitutes joint pilot channel network framework with the interior perception pilot frequency channel of band.
The global general-use channel of the outer pilot channel utilization of described band is the outer perception pilot channel frequency set of band, various countries take situation according to national frequency spectrum resource allocation strategy and frequency spectrum provides the operational idle frequency of this country to form the outer perception pilot channel frequency set of band, be with outer perception pilot channel transmitting base station while each frequency in this frequency is gathered to broadcast identical band outer network information.
The outer perception pilot channel of described band constitutes in the joint pilot channel network framework with the interior perception pilot frequency channel of band, be with outer perception pilot channel transmitting base station to adopt the Da Qu system to cover, in a Da Qu, there is multiple Radio Access Network, what these Radio Access Networks were with outer perception pilot channel employing relatively is that the sub-district covers, and perception pilot frequency channel utilizes existing Radio Access Network channel to provide seamless covering for this sub-district in the band.
Perception pilot frequency channel is divided into down channel and up channel in the described band, and down channel is used for broadcasting the network information in the band in this sub-district, and the network packets of information is drawn together this subzone network information and adjacent subzone network information in this band.Described adjacent sub-district is relative this sub-district, and each sub-district network operator safeguards the adjacent cell list of oneself.Comprise three kinds of adjacent sub-districts in the adjacent cell list: horizontal switching cell, vertical switching cell, software download sub-district.Horizontal switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and two sub-districts use identical wireless access technologys, and terminal is switched during this time and be need not to reshuffle; Vertical switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and different wireless access technologys is used in two sub-districts, and terminal is switched during this time and must be reshuffled; Wherein said software download sub-district is meant to the assurance reconfiguration course and in time finishes that terminal need be fulfiled the download work of reshuffling required software ahead of schedule, and the adjacent sub-district of design.May not exist between adjacent sub-district and this sub-district and cover overlapping going or the common cell border.This subzone network information comprises identical information unit with adjacent subzone network information, and the concrete numerical value of each information unit has nothing in common with each other according to each cell wireless communication networks environment.Information unit comprises the network information unit that universal network information unit and terminal are used for network selecting and reshuffle.The universal network information unit comprises: country code, operator code, Radio Access Network type and move frequency range accordingly; Terminal is carried out the required network information unit of network selecting and is comprised: network utilization, obtainable QoS, service fee, power consumption, fail safe, mobility and switching smoothness.Terminal is reshuffled required network information unit and is comprised: reshuffle required downloaded software type, size, manufacturer, version number, download channels code and transport-type (broadcasting, multicast, clean culture).
Described up channel is used for terminal to the perception pilot frequency channel server feedback network information.Terminal is installed the cognitive radio module, no matter at state of activation or holding state, terminal can detect network environment and will detect the base station or the access point that up channel feeds back to Radio Access Network that pass through of property information cycle, again by base station or access point by cable network in the future the network information of self terminal feed back to the perception pilot frequency channel server, the perception pilot frequency channel server stores is also analyzed feedback information, the network information sends to each base station or access point in the band that will upgrade according to the position of each sub-district, and the band outer network information that will upgrade sends to the outer perception pilot channel transmitting base station of band.
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Fig. 1 is a kind of embodiment that unites in the band, is with the network architecture of outer perception pilot channel of the present invention.Wherein the Da Qu that the outer perception pilot channel of band is covered is represented in zone 1, transmitting base station 2 utilizes the outer perception pilot channel frequency set of band broadcasting band outer network information in the world, and band outer network information comprises country code, operator code, Radio Access Network type and moves frequency range accordingly.Have 4 kinds of different Radio Access Networks in zone 1, the outer perception pilot channel of band adopts these Radio Access Networks relatively is the sub-district covering, two kinds of cellular radio access networks wherein, and its coverage is cellular cell 3 and cellular cell 4; Two kinds of WLAN (wireless local area network), its coverage are Hot Spot 5 and Hot Spot 6.Each base station 7 and access point 8 are broadcasted the network information in the band by down channel 12 in this sub-district.In addition, each base station 7 and access point 8 are collected the network information that terminals 13 perceive and these information are fed back to perception pilot frequency channel server 10 by cable network 9 by up channel 11.
Fig. 2 is the embodiment of the outer perception pilot channel frequency set of band of the present invention.The set 14 that each country or tissue (European Union, China, Korea S, North America) provide the available frequency band in this country or the geographic coverage to form is the outer perception pilot channel frequency set of band.
Fig. 3 is an application scenarios of the present invention.Be with outer perception pilot channel Da Qu 15 to cover city 1, be with outer perception pilot channel Da Qu 16 to cover city 2, cellular cell BS1, BS2, BS3 adopts a kind of wireless access technology, cellular cell BS4, BS5 adopts another kind of wireless access technology, Hot Spot A, D adopts a kind of WLAN access technology, Hot Spot B, C adopts another kind of WLAN (wireless local area network) access technology, Hot Spot A wherein, B is respectively the railway station in two cities, Hot Spot C, D is respectively the airport in two cities, cellular cell BS1, BS2, BS3, BS4, BS5 and Hot Spot A, B, C, D broadcasts the interior network information of band of this sub-district.
Fig. 4 is Neighboring Cell List and an adjacent area type among Fig. 3.Wherein walk crosswise this sub-district of expression, file is represented adjacent sub-district.HHO represents horizontal switching cell, and VHO represents vertical switching cell, and DL represents the software download sub-district.Wherein BS4 is that the download sub-district of BS2 is that moving velocity of terminal is very fast relatively because consider two sub-districts by railway run-through, therefore needs to begin software download at BS2 in advance in order to guarantee to finish when terminal enters BS4 to reshuffle.Therefore BS4 is the download sub-district of BS2.BS5 and BS3 are in like manner.It is that terminal need be finished software download before taking off because Hot Spot C, D are the airport that Hot Spot C, D download the sub-district each other, start shooting behind the arrival destination airport and reshuffle, so Hot Spot C, D downloads the sub-district each other.
Fig. 5 is a band outer network information element of the present invention.
Fig. 6 is a network information element in the band of the present invention.Information unit 17 is general information unit, and information unit 18 is network information unit that terminal is used for network selecting, and information unit 19 is network information unit that terminal is reshuffled.
Claims (21)
1, a kind of method of using the perception pilot frequency channel collection network information and broadcasting to terminal, described method comprises step:
Be with the outer perception pilot channel frequency set of outer perception pilot channel utilization band, simultaneously the identical band outer network information of each frequency broadcasting in described frequency set;
Perception pilot frequency channel is the network information in this Cell Broadcast CB band on the downlink broadcast channel of existing wireless access network in the band, thereby perception pilot frequency channel constitutes joint pilot channel network framework in outer perception pilot channel of band and the band,
Wherein the outer perception pilot channel transmitting base station of band adopts the Da Qu system to cover, and the perception pilot frequency channel transmitting base station adopts the sub-district to cover in the band.
2, according to the described method of claim 1, the outer perception pilot channel of wherein said band is independent of any Radio Access Network, and utilizes the global general-use channel to broadcast band outer network information in the world.
3, according to the described method of claim 2, wherein said band outer network information comprises country code, operator code, Radio Access Network type and moves frequency range accordingly.
4, according to the described method of claim 1, the outer perception pilot channel frequency set of wherein said band takies situation by various countries according to national frequency spectrum resource allocation strategy and frequency spectrum provides national operational idle frequency to form.
5, according to the described method of claim 1, wherein in described Da Qu, can exist multiple Radio Access Network.
6, according to the described method of claim 1, perception pilot frequency channel is divided into down channel and up channel in the wherein said band.
7, according to the described method of claim 6, wherein said down channel is used for broadcasting the network information in the band in this sub-district.
8, according to the described method of claim 7, the network packets of information is drawn together this subzone network information and adjacent subzone network information in the wherein said band.
9, described according to Claim 8 method, wherein said subzone network information comprises identical information unit with adjacent subzone network information, and the concrete numerical value of each information unit has nothing in common with each other according to each cell wireless communication networks environment.
10, according to the described method of claim 9, wherein said information unit comprises the network information unit that universal network information unit and terminal are used for network selecting and reshuffle.
11, according to the described method of claim 10, wherein said universal network information unit comprises: country code, operator code, Radio Access Network type and move frequency range accordingly.
12, according to the described method of claim 10, wherein said terminal is carried out the required network information unit of network selecting and is comprised: network utilization, obtainable QoS, service fee, power consumption, fail safe, mobility and switching smoothness.
13, according to the described method of claim 10, wherein said terminal is reshuffled required network information unit and is comprised: reshuffle required downloaded software type, size, manufacturer, version number, download channels code and transport-type.
14, according to the described method of claim 13, wherein said transport-type comprises broadcasting, multicast, clean culture.
15, according to the described method of claim 9, wherein said adjacent sub-district is relative this sub-district, and the network operator of each sub-district safeguards the adjacent cell list of oneself.
16, according to the described method of claim 15, comprise three kinds of adjacent sub-districts in the wherein said adjacent cell list: horizontal switching cell, vertical switching cell, software download sub-district.
17, according to the described method of claim 16, wherein said horizontal switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and identical wireless access technologys are used in two sub-districts, and terminal is switched during this time and be need not to reshuffle.
18, according to the described method of claim 16, wherein said vertical switching cell is meant that adjacent sub-district and this sub-district have overlapping area or common cell border, and different wireless access technologys is used in two sub-districts, and terminal is switched during this time and must be reshuffled.
19, according to the described method of claim 16, wherein said software download sub-district is meant to the assurance reconfiguration course and in time finishes that terminal need be fulfiled the download work of reshuffling required software ahead of schedule and the adjacent sub-district of designing; May there be overlapping area or common cell border between adjacent sub-district and this sub-district.
20, according to the described method of claim 6, wherein said up channel is used for terminal to the perception pilot frequency channel server feedback network information.
21, according to the described method of claim 20, also comprise step:
No matter at state of activation or holding state, the terminal juncture that the cognitive radio module has been installed detects network environment, and will detect the base station or the access point that up channel feeds back to Radio Access Network that pass through of property information cycle,
Base station or access point feed back to the perception pilot frequency channel server by the network information of cable network self terminal in future,
The perception pilot frequency channel server stores,
Phase-split network information, and, generate the network information and band outer network information in the new band according to specific algorithm and target;
The network information sends to each base station or access point in the band that will upgrade according to the position of each sub-district, and the band outer network information that will upgrade sends to the outer perception pilot channel transmitting base station of band.
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