CN101365162B - Method and system for dividing multicast/broadcast service zone - Google Patents
Method and system for dividing multicast/broadcast service zone Download PDFInfo
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- CN101365162B CN101365162B CN200710140149XA CN200710140149A CN101365162B CN 101365162 B CN101365162 B CN 101365162B CN 200710140149X A CN200710140149X A CN 200710140149XA CN 200710140149 A CN200710140149 A CN 200710140149A CN 101365162 B CN101365162 B CN 101365162B
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Abstract
The invention discloses a method and a system of dividing a multicast/broadcasting service area. The method comprises the following steps: collecting and receiving the locating information of a mobile station MS of the multicast/broadcasting business and the multicast/broadcasting business service; forming an MS distribution map of receiving the multicast/broadcasting business service according to the locating information of the MS; and comparing the MS distribution map with the multicast/the broadcasting service area, and adjusting the current multicast/broadcasting service area programming according to the MS distribution map when the programming of the current multicast/broadcasting service field is not reasonable. The invention has the advantages of enhancing network service capacity and improving the user experience.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to the method and system of dividing multicast/broadcast service zone.
Background technology
Along with development of Communication Technique, multicast/broadcast business is rapidly developed, such as being applicable to microwave cut-in global interoperating system (WiMAX, Worldwide Interoperability Microwave Access) multicast/broadcast business (MBS, Multicast Broadcast Service); Be applicable to that the 3G (Third Generation) Moblie partner plans Long Term Evolution plan (3GPP LTE, the 3 third Generation Partnership ProjectLong Term Evolution) multimedia broadcast-multicast service (MBMS, Multimedia Broadcastand Multicast Service).Multicast/broadcast can provide the business of point-to-multipoint to the user.The multicast/broadcast business multicast/broadcast business can be used to transmit real-time streaming media service, also can be used to transmit non real-time file download service, and the content of transmission comprises various data types.
The MBS of existing WiMAX supports two kinds of access waies: single base station MBS business (Single-BS, Single-Base Station) inserts and multi-base station MBS business (Multi-BS, Multi-Base Station) inserts.Under the Single-BS access way, the MBS business is transmitted in single BS; Under the Multi-BS access way, with the BS zoning, the BS that belongs to same MBS zone (MBS Zone) has the ability MBS is provided business, and each MBS Zone has a unique sign.
Multi-base station MBS is defined as a kind of multicast service, all join travelling carriage (MS, Mobile Subscribe Station) that multi-base station MBS connects and can receive multicast or broadcast data through encryption from any base station in the specified scope in the time of appointment in this manner.MBS Zone is used to define the service range of same multi-base station MBS service, in same MBS Zone scope, all BS need the identical content stream of synchronous transmission, BS uses identical transmission means to send identical protocol Data Unit (PDU in the identical time, Protocol Data Unit), MS receives the data from a plurality of BS synchronous transmission simultaneously, obtains corresponding diversity gain, improve systematic function, optimize travelling performance.
Similar with the multi-base station MBS of WiMAX, also defined SFN (Single Frequency Network in the existing 3GPP LTE network, single frequency network), corresponding single frequency network overlay area is called single-frequency network area (SFN areas), and all base station transmitters in a SFN areas use identical physical resource (as time, the Resource Block) multicast/broadcast signal that synchronized transmissions is identical.Receiver is (as travelling carriage, MS) signal that receives from a plurality of base station transmitter is identical with the signal that receives from a single base station transmitter, but the signal that comes from a plurality of base station transmitter merges at receiver-side, obtains corresponding diversity gain, to improve systematic function.
But, be in the MS at MBS Zone or SFN areas edge owing to a little less than the received signal, can't receive synchronizing signal from a plurality of base stations, therefore can't obtain the diversity gain of MBS Zone or SFN areas.In the prior art, scope and the border of MBS Zone or SFN areas are generally determined according to user distribution model when the network planning, guarantee that as far as possible the number of users on MBS Zone or SFN areas border is the most sparse.In research and practice process to prior art, the inventor finds that there is following problem in prior art: in the prior art when the network planning, after determining the scope and border of MBS Zone or SFN areas, generally can not do change to scope and the border of MBS Zone or SFN areas, when user distribution changes, the user on MBS Zone or SFN areas border can become intensive, these users can't receive synchronizing information from a plurality of base stations owing to be in MBS Zone or SFN areas edge, therefore can't obtain the diversity gain of MBS Zone or SFN areas, network service capabilities reduces.
Summary of the invention
The technical problem that the embodiment of the invention will solve provides a kind of method and system of dividing multicast/broadcast service zone, can dynamically adjust multicast/broadcast service zone, improves network service capabilities.
For solving the problems of the technologies described above, the method embodiment of division multicast/broadcast service zone provided by the present invention is achieved through the following technical solutions:
Collect the positional information of the mobile station MS that receives the multicast/broadcast business service; Form the distribution map of the MS that receives the multicast/broadcast business service according to the positional information of described MS; The distribution map of described MS and the planning of current multicast/broadcast service zone are compared, plan at described current multicast/broadcast service zone and according to the distribution map of described MS multicast/broadcast service zone is adjusted when unreasonable.
For solving the problems of the technologies described above, the system embodiment of division multicast/broadcast service zone provided by the present invention is achieved through the following technical solutions:
Comprise: multicast/broadcast service zone cooperation center and multicast/broadcast service zone control unit;
Described multicast/broadcast service zone control unit comprises: collector unit, transmitting element and adjustment unit;
Collector unit, the positional information that is used to collect the mobile station MS that receives the service of multicast/broadcast business multicast/broadcast business; Transmitting element is used for positional information with described MS and sends to described multicast/broadcast service zone cooperation center; Adjustment unit is used for adjusting strategy according to multicast/broadcast service zone, and multicast/broadcast service zone is adjusted;
Described multicast/broadcast service zone cooperation center comprises: the MS distribution map forms unit, judging unit and adjustment policy unit; The MS distribution map forms the unit, is used for forming according to the positional information of described MS the distribution map of the MS that receives the multicast/broadcast business service; Judging unit is used for distribution map and the multicast/broadcast service zone planning of more described MS, judges whether current multicast/broadcast service zone planning is reasonable; Adjust policy unit, be used for planning forming multicast/broadcast service zone and adjusting strategy when unreasonable at described multicast/broadcast service zone.
A technical scheme in the technique scheme has following beneficial effect: because the embodiment of the invention is collected the positional information of MS, the positional information of MS is formed the distribution map of current MS, and divide multicast/broadcast service zone according to the distribution map of MS, dynamically adjust multicast/broadcast service zone, make the user distribution compact district be positioned at the center of multicast/broadcast service zone, improve network service capabilities, strengthen user experience.
Description of drawings
Fig. 1 is the network configuration that the embodiment of the invention provides;
Fig. 2 is the method flow diagram of the division multicast/broadcast service zone that provides of the embodiment of the invention;
Fig. 3 is the division multicast/broadcast service zone system construction drawing that the embodiment of the invention provides.
Embodiment
The embodiment of the invention provides a kind of method and system of dividing multicast/broadcast service zone, is used for dynamically adjusting the multicast/broadcast zone.
Describe for convenient, the embodiment of the invention is with SFN areas in MBS Zone and the 3GPP LTE system in the multicast/broadcast service zone general designation WiMAX system.
The inner positional information that receives the MS of multicast/broadcast business of embodiment of the invention real-time collecting multicast/broadcast service zone, know the variation of the distributed topology of interior MS of some moment or a period of time in the network, form the distribution map of MS, and whether the scope of judging current multicast/broadcast service zone thus is reasonable, can guarantee most quality of services for users in the zone, if need to adjust, according to the distribution map of MS, current multicast/broadcast service zone is adjusted in control, to optimize network service capabilities.
In conjunction with above-mentioned thought, the network configuration that the embodiment of the invention provides as shown in Figure 1;
As shown in the figure, the multicast/broadcast service zone control unit is responsible for the management of multicast/broadcast service zone life cycle, comprise establishment, maintenance and the deletion of multicast/broadcast service zone, also be responsible for the scheduling and the transmission of multicast/broadcast business data flow in the multicast/broadcast business Zone simultaneously, each multicast/broadcast service zone control unit is responsible for the management of a multicast/broadcast service zone.Multicast/broadcast service zone Consultation Center is responsible for collecting the positional information of the MS that receives the multicast/broadcast business service in each multicast/broadcast service zone, and coordinate a plurality of multicast/broadcast service zone control units in view of the above to finish the adjustment of multicast/broadcast service zone, the adjustment of multicast/broadcast service zone comprises the expansion of multicast/broadcast service zone, dwindles, merges or divides.
In conjunction with above-mentioned thought and network configuration and function introduction, the embodiment of the invention is described in detail the method for dividing multicast/broadcast service zone in conjunction with the accompanying drawings.
See also Fig. 2 and be the method flow diagram of the division multicast/broadcast service zone that the embodiment of the invention provides.
The multicast/broadcast service zone control unit is collected the positional information of the MS that receives the multicast/broadcast business service, and the MS positional information of collecting is sent to multicast/broadcast service zone cooperation center; Multicast/broadcast service zone cooperation center gathers the MS positional information that each multicast/broadcast service zone control unit reports, execution in step 102.
Multicast/broadcast service zone cooperation center forms the MS distribution map that receives the multicast/broadcast business service according to the positional information of MS.
The distribution map and the planning of current multicast/broadcast service zone that receive the MS of multicast/broadcast business service are compared, if the current MS MS densely distributed, that be in the multicast/broadcast service zone edge that is in the multicast/broadcast service zone center distributes sparse, then current multicast/broadcast service zone planning is not rationally adjusted multicast/broadcast service zone; If the MS distribution that the current MS that is in the multicast/broadcast service zone center distributes sparse, as to be in the multicast/broadcast service zone edge is sparse, current multicast/broadcast service zone planning is unreasonable, execution in step 104.
Multicast/broadcast service zone cooperation center forms the adjustment strategy that multicast/broadcast service zone is adjusted earlier, by the multicast/broadcast service zone control unit multicast/broadcast service zone is adjusted, adjusted the expansion comprise scope, dwindle and several multicast/broadcast service zone merges or a multicast/broadcast service zone splits into several multicast/broadcast service zones.After multicast/broadcast service zone is adjusted, follow the BS transmission data in the multicast/broadcast service zone also to do corresponding adjustment.
If the method for above-mentioned division multicast/broadcast service zone is applied in the WiMAX system, multicast/broadcast service zone cooperation center and multicast/broadcast service zone control unit can all be present in access service network gateway (ASN GW, Access Service Network Gate Way), multicast/broadcast service zone cooperation center also can separately exist in the network element on ASN GW upper strata or as the stand-alone network elements on ASN GW upper strata.Multicast/broadcast service zone cooperation center is present in the network element on ASN GW upper strata or as the stand-alone network elements on ASNGW upper strata, enlarges the scope of cooperation multicast/broadcast service zone control unit.Multicast/broadcast service zone cooperation center is present in the network element on ASN GW upper strata, in existence and home agent (HA, Home Agent).If the method for above-mentioned division multicast/broadcast service zone is applied in the 3GPP LTE system, multicast/broadcast service zone cooperation center and multicast/broadcast service zone control unit can all be present in IAD (aGW, Access Gateway), multicast/broadcast service zone cooperation center also can separately exist in the network element on aGW upper strata or as the stand-alone network elements on aGW upper strata.Multicast/broadcast service zone cooperation center is present in the network element on aGW upper strata or as the stand-alone network elements on aGW upper strata, enlarges the scope of cooperation multicast/broadcast service zone control unit.
Based on said method, the embodiment of the invention also provides the system that divides multicast/broadcast service zone, the following system that divides multicast/broadcast service zone that is described with reference to the accompanying drawings.
Seeing also Fig. 3 is the division multicast/broadcast service zone system construction drawing that the embodiment of the invention provides.
Comprise: multicast/broadcast service zone cooperation center 310 and multicast/broadcast service zone control unit 320;
Described multicast/broadcast service zone control unit comprises: collector unit 321, generating unit 322 and adjustment unit 323;
Transmitting element 322 is used for positional information with described MS and sends to described multicast/broadcast service zone cooperation center;
Described multicast/broadcast service zone cooperation center comprises: the MS distribution map forms unit 311, judging unit 312 and adjusts policy unit 313;
The MS distribution map forms unit 311, is used for the positional information of described MS is formed the distribution map of the MS of current reception multicast/broadcast business service;
Adjust policy unit 313, be used for planning forming multicast/broadcast service zone and adjusting strategy when unreasonable at described current multicast/broadcast service zone.
Described multicast/broadcast service zone control unit and described multicast/broadcast service zone cooperation center are present among the Access Service Network Gateway ASN GW.
Described multicast/broadcast service zone control unit is present in ASN GW, and described multicast/broadcast service zone cooperation center is present in the network element of ASN GW upper strata or as the stand-alone network elements on ASN GW upper strata.
Described multicast/broadcast service zone control unit and described multicast/broadcast service zone cooperation center are present in the IAD.
Described multicast/broadcast service zone control unit is present in the IAD, and described multicast/broadcast service zone cooperation center is present in the network element of IAD upper strata or as the stand-alone network elements on IAD upper strata.
By last argumentation as can be known, the method and system embodiment that the present invention divides multicast/broadcast service zone can be applied to WiMAX system and 3GPP LTE system, but be not limited to this two kinds of systems, can also be applied to as super broad band radio communication (UMB, Ultra-Wideband) in the system, its realization principle is described content with above-mentioned embodiment.
More than a kind of method and system of dividing multicast/broadcast service zone provided by the present invention is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. a method of dividing multicast/broadcast service zone is characterized in that, comprising:
Collect the positional information of the mobile station MS that receives the multicast/broadcast business service;
Form the distribution map of the MS that receives the multicast/broadcast business service according to the positional information of described MS;
The distribution map of described MS and the planning of current multicast/broadcast service zone are compared, plan at described current multicast/broadcast service zone and according to the distribution map of described MS multicast/broadcast service zone is adjusted when unreasonable.
2. the method for division multicast/broadcast service zone according to claim 1, it is characterized in that, described multicast/broadcast service zone adjustment is comprised: with the expansion of multicast/broadcast service zone scope, dwindle, merge or multicast/broadcast service zone is divided with contiguous multicast/broadcast service zone.
3. the method for division multicast/broadcast service zone according to claim 2 is characterized in that, plans at described current multicast/broadcast service zone and multicast/broadcast service zone is not adjusted when reasonable.
4. a system that divides multicast/broadcast service zone is characterized in that, comprising: multicast/broadcast service zone cooperation center and multicast/broadcast service zone control unit;
Described multicast/broadcast service zone control unit comprises: collector unit, transmitting element and adjustment unit;
Collector unit, the positional information that is used to collect the mobile station MS that receives the multicast/broadcast business service;
Transmitting element is used for positional information with described MS and sends to described multicast/broadcast service zone cooperation center;
Adjustment unit is used for adjusting strategy according to multicast/broadcast service zone, and multicast/broadcast service zone is adjusted;
Described multicast/broadcast service zone cooperation center comprises: the MS distribution map forms unit, judging unit and adjustment policy unit;
The MS distribution map forms the unit, is used for forming according to the positional information of described MS the distribution map of the MS that receives the multicast/broadcast business service;
Judging unit is used for distribution map and the multicast/broadcast service zone planning of more described MS, judges whether current multicast/broadcast service zone planning is reasonable;
Adjust policy unit, be used for planning forming multicast/broadcast service zone and adjusting strategy when unreasonable at described multicast/broadcast service zone.
5. the system of division multicast/broadcast service zone according to claim 4 is characterized in that, described multicast/broadcast service zone control unit and described multicast/broadcast service zone cooperation center are present among the Access Service Network Gateway ASN GW.
6. the system of division multicast/broadcast service zone according to claim 4, it is characterized in that, described multicast/broadcast service zone control unit is present in ASN GW, and described multicast/broadcast service zone cooperation center is present in the network element of ASN GW upper strata or as the stand-alone network elements on ASN GW upper strata.
7. the system of division multicast/broadcast service zone according to claim 4 is characterized in that, described multicast/broadcast service zone control unit and described multicast/broadcast service zone cooperation center are present in the IAD.
8. the system of division multicast/broadcast service zone according to claim 4, it is characterized in that, described multicast/broadcast service zone control unit is present in the IAD, and described multicast/broadcast service zone cooperation center is present in the network element of IAD upper strata or as the stand-alone network elements on IAD upper strata.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6560462B1 (en) * | 2000-03-07 | 2003-05-06 | Samsung Electronics Co., Ltd. | System and method for determining the location of a mobile station in a wireless network |
| CN1438807A (en) * | 2002-02-10 | 2003-08-27 | 华为技术有限公司 | Method for selecting wireless channel distribution in multiple channel broadcasting business |
| WO2007069988A1 (en) * | 2005-12-14 | 2007-06-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Arrangment and method in a mobile telecommunication system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6560462B1 (en) * | 2000-03-07 | 2003-05-06 | Samsung Electronics Co., Ltd. | System and method for determining the location of a mobile station in a wireless network |
| CN1438807A (en) * | 2002-02-10 | 2003-08-27 | 华为技术有限公司 | Method for selecting wireless channel distribution in multiple channel broadcasting business |
| WO2007069988A1 (en) * | 2005-12-14 | 2007-06-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Arrangment and method in a mobile telecommunication system |
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Effective date of registration: 20211221 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |