CN101304560A - Wireless broadcast/multicast system and method - Google Patents
Wireless broadcast/multicast system and method Download PDFInfo
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Abstract
The invention discloses a wireless broadcasting multicasting system and a method thereof. The system comprises a mobile terminal, a wireless base station, a content distribution center, a broadcasting multicasting gateway and a broadcasting multicasting control center. The broadcasting multicasting control center comprises a service configuration module used for deciding the resource configuration mode of service on the subdistrict according to the service information of the content distribution center and controlling different resource configurations by different resource configuration modes for single frequency network mode, single subdistrict broadcasting or mixed model resource configuration mode. The system and the method have fine service continuity, so that terminal equipment can well receive broadcasting multicasting data as far as possible when moving among different types of subdistricts.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of wireless broadcast/multicast (MBMS) system and method.
Background technology
Multimedia broadcast multicast service (Multimedia Broadcast Multicast Service, MBMS) be 3G (Third Generation) Moblie tissue (3G Partner Project, a 3GPP) business of introducing later at the version Re16 of its standardization document, be meant that a data source sends the point-to-multipoint service of data to a plurality of users, thereby realize that Internet resources are shared, with the service of the least possible resource realization to the media user of same requirements as much as possible.In the wireless access mesh portions, the multimedia broadcast multicast service can realize the multicast and the broadcasting of the multimedia service of two-forty by using the carrying of Common transport channel and public wireless.
Long Term Evolution project (Long Term Support at 3GPP, the MBMS business that strengthens has been proposed LTE), be E-MBMS, it has following characteristics: MBMS can use the identical carrier wave of unicast service, also can independently use carrier wave, be the single frequency network pattern (Single Frequency Network, SFN); Under broadcast mode, E-MBMS reaches the availability of frequency spectrum of 1bit/s/Hz at cell edge; Basic modulation, coding and the multiple access access mechanism of E-MBMS is identical with unicast service, and MBMS business and unicast service can be provided simultaneously; Single Cell Broadcast CB can adopt different transfer mechanisms with many cell broadcaste services; (Mobile Terminal MT) can receive the MBMS business at idle pulley and connection mode to mobile terminal device; Defined the MBMS transmission channel (MBMS point-to-multipoint TrafficCHannel, MTCH) and the MBMS control channel (MBMS point-to-multipoint ControlCHannel is MCCH) as the transmission and the control channel of MBMS business; For the exclusive sub-district of MBMS, do not support upstream data and counting, do not support unicast service.
According to the scope of transport service, E-MBMS is divided into single sub-district and transmits (non-single frequency network pattern) and many sub-districts transmission (single frequency network pattern).
The single frequency network pattern (SFN) that transmits for many sub-districts: the MBMS business transmits in a plurality of sub-districts, MBMS transmission channel (MTCH) and MBMS control channel (MCCH) all be carried on the broadcast multi-broadcasting channel (Multi-Channel, MCH); Support the information of many sub-districts to merge; Adopt point to send to the mode of multiple spot; The employing synchronizing content sends.
Non-single frequency network pattern (non-SFN) for the transmission of single sub-district: the MBMS business only transmits in a specific sub-district; Do not support the MBMS service combining of many sub-districts.
The core that many sub-districts E-MBMS sends is the soft merging of descending grand diversity of single frequency network pattern (SFN), need to obtain the signal that makes terminal equipment (MT) can merge many sub-districts synchronously between the sub-district, adopt time division multiplexing (Time Division Multiplexing, TDM) or frequency division multiplexing (Frequency DivisionMultiplexing, FDM) transmission.For Time Division Multiplexing and frequency division multiplexing (FDM), the E-MBMS data flow all needs to be in the same place with down physical layer and MAC layer signal multiplex.Multiplexing main employing time division multiplexing mode between a plurality of E-MBMS data flow is to reduce the time of reception of E-MBMS data flow.
But, for E-MBMS, also have the problem of a lot of aspects to need to solve, comprise and use feedback mechanism to control MBMS? use which kind of feedback system? how is the MBMS service of many sub-districts managed dynamically? how to manage the allocation of radio resources of MBMS? mobility problem of handle mobile terminal (MT) or the like when receiving the MBMS service how.Therefore, prior art can't be managed dynamically to the E-MBMS business.
Summary of the invention
The object of the present invention is to provide a kind of wireless broadcast/multicast system and method, it has the good service continuation, makes terminal equipment can receive the broadcast multi-broadcasting data when dissimilar moving between cells as well as possiblely.
Be a kind of wireless broadcast/multicast system of realizing that purpose of the present invention provides, comprise portable terminal, the wireless base station, content Distribution Center, broadcast multi-broadcasting gateway and broadcast multi-broadcasting control centre, described broadcast multi-broadcasting control centre comprises the service configuration module, is used for the information on services according to content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
Described resources employment methods is single frequency network pattern or single Cell-Broadcast mode or single sub-district mixed mode resources employment methods.
Described service configuration module comprises the single-frequency network area configuration module, is used under the single frequency network pattern, and a plurality of sub-districts to a single-frequency network area covers are providing the broadcast multi-broadcasting viability, and the resource of whole sub-districts is carried out dynamic management.
Described service configuration module comprises resource distribution module and memory module, wherein:
Described resource distribution module is used under single frequency network and single sub-district mixed mode, according to the information of terminal feedback module by the up feedback of feedback channel, to the dynamic assignment of the Radio Resource of broadcast multi-broadcasting;
Described memory module is used to store position, the type information of each broadcast multi-broadcasting service.
Described wireless base station comprises second resource distribution module, is used under single Cell-Broadcast mode, carrying out allocation of radio resources, and by sending its operation done of the described broadcast multi-broadcasting of signaling control centre.
For realizing that the object of the invention also provides a kind of wireless broadcast/multicast system resource allocation method, comprise the following steps:
Steps A, according to the information on services of content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
Described steps A comprises the following steps:
Steps A 1, under the situation of resource abundance, broadcast multi-broadcasting control centre becomes to use the single frequency network mode with a service configuration, under the single frequency network pattern, to a plurality of sub-districts that a single-frequency network area covers, during the broadcast multi-broadcasting service provides, the resource of whole sub-districts is carried out dynamic management.
Described steps A 1 comprises the following steps:
Steps A 11 adds the broadcast multi-broadcasting service when there is the user sub-district of single-frequency network area adjacency, and the resource of this sub-district adds single-frequency network area with this sub-district when enough, carries out the expansion of single-frequency network area;
Steps A 12, when the sub-district in the single-frequency network area no longer needed to send the broadcast multi-broadcasting data, Radio Resource was no longer used for the broadcast multi-broadcasting resource in this sub-district, carries out the reduction of single-frequency network area.
Described steps A 11 comprises the following steps:
Steps A 111 when the portable terminal application adds the broadcast multi-broadcasting service, does not dispose in this sub-district if described wireless base station detects the broadcast multi-broadcasting service, and then described wireless base station sends the request of broadcast multi-broadcasting service configuration to broadcast multi-broadcasting control centre;
Steps A 112, described broadcast multi-broadcasting control centre receives that this request back detects the base station Dynamic Resource Allocation for Multimedia around described wireless base station;
Steps A 113, if described wireless base station and single-frequency network area are adjacent and this single-frequency network area has been configured the broadcast multi-broadcasting service, then described broadcast multi-broadcasting control centre sends to this wireless base station with the resource allocation information of this single frequency network, and this wireless base station carries out resource distribution after receiving information;
Steps A 114, if distribute the resource identical with single frequency network in this wireless base station, then this wireless base station is a broadcast multi-broadcasting service configuration resource, and the adding single-frequency network area, then configuration information is reported to described broadcast multi-broadcasting control centre.
Described steps A 12 comprises the following steps:
When steps A 121, portable terminal moved the triggering cell handoff procedure to other sub-districts, if this portable terminal has been configured the broadcast multi-broadcasting service, then user's broadcast multi-broadcasting service change was reported in the wireless base station to broadcast multi-broadcasting control centre in the process of switching;
Steps A 122, this broadcast multi-broadcasting control centre is after detecting the broadcast multi-broadcasting service configuration situation of portable terminal Target cell, if find that Target cell has disposed broadcast multi-broadcasting control service and Target cell does not add described single-frequency network area, then detect the reception condition of user's broadcast multi-broadcasting service in the wireless base station;
Steps A 123 if there is not the user receiving the broadcast multi-broadcasting service in the wireless base station, then will be distributed to the resource release of broadcast multi-broadcasting service by broadcast multi-broadcasting control centre notice wireless base station; Simultaneously, the information that single-frequency network area covers is revised by broadcast multi-broadcasting control centre.
Described steps A also comprises the following steps:
Described steps A 2 also comprises the following steps:
Portable terminal by the up network terminal that feeds back to of feedback channel, carries out its information the sub-district by network terminal control handoff procedure and switches when being in connection status, and the broadcast multi-broadcasting service.
Described wireless broadcast/multicast system resource allocation method also comprises the following steps:
Step B under single Cell-Broadcast mode, carries out allocation of radio resources, and sends its operation done of signaling broadcast multi-broadcasting control centre by described wireless base station.
Described step B comprises the following steps:
Step B1, broadcast multi-broadcasting control centre sends resource allocation information for each broadcast multi-broadcasting service to the wireless base station of the sub-district of its covering;
Step B2, detect its other resources configuration receive the broadcast multi-broadcasting service request of portable terminal when this wireless base station after, if this wireless base station is configured to single Cell-Broadcast mode, then send resource allocation information by the wireless base station from serving to portable terminal as this broadcast multi-broadcasting, this wireless base station sends to broadcast multi-broadcasting control centre with this user's service configuration information simultaneously;
Step B3, broadcast multi-broadcasting control centre are kept at this service configuration information on this sub-district after receiving the service configuration information that this wireless base station sends, and as the reference of other sub-districts and/or other broadcast multi-broadcasting service resource allocation.
The invention has the beneficial effects as follows: wireless broadcast/multicast system of the present invention and method, by the function in each entity in the wireless broadcast/multicast system is set, by Signalling exchange between each entity and system strategy method flexibly, can provide dissimilar, guarantee the continuation of good broadcast multi-broadcasting service under the prerequisite of the broadcast multi-broadcasting service of different coverages, thereby improve the quality of broadcast multi-broadcasting service.
Description of drawings
Fig. 1 is a wireless broadcast/multicast system structural representation of the present invention;
Fig. 2 is that portable terminal of the present invention (MT) is at the inner mobile schematic diagram of single frequency network;
Fig. 3 is mobile device mobile schematic diagram between single frequency network and single Cell Broadcast CB;
Fig. 4 is a mobile schematic diagram under single Cell-Broadcast mode;
Fig. 5 is that portable terminal under the idle condition (MT) moves single Cell-Broadcast mode flow chart.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, a kind of wireless broadcast/multicast system of the present invention and method are further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of wireless broadcast/multicast system of the present invention and method, wireless broadcast/multicast system (E-MBMS) for the enhancing of having used dynamic Service management and single frequency network pattern (SFN) technology, by technical scheme provided by the invention, can be for mobile terminal device (MT) provide good broadcast multi-broadcasting service quality guarantee, the reception broadcast multi-broadcasting data that the equipment that makes can be as well as possible when dissimilar moving between cells.
Describe wireless broadcast/multicast system of the present invention below in detail, as shown in Figure 1, comprising: portable terminal (MT) 4, wireless base station (Base Station, BS) 3, broadcast multi-broadcasting control centre (Multicast BroadcastCenter, MBC) 2, (the Content Delivery Center of content Distribution Center, CDC) 5, and the broadcast multi-broadcasting gateway (Multicast Broadcast Gateway, MB-GW) 1, wherein:
Described portable terminal (MT) 4 is used for receiving radio data, and by measuring and feeding back and assist wireless base station (BS) 3 to realize ambulant function;
Described wireless base station (BS) 3, the main entity as wireless air interface is used for RRM, dynamic clean culture allocation of radio resources;
Described broadcast multi-broadcasting gateway (MB-GW) 1, as the connection entity between core network and the air interface, be used for the distribution of data, to one group of application the sub-district of one broadcast multi-broadcasting service send the broadcast multi-broadcasting data and guarantee that this process carries out synchronously between each sub-district;
Described broadcast multi-broadcasting control centre (MBC) 2, as supporting broadcast multi-broadcasting that the main entity of broadcast multi-broadcasting service is provided dynamically, flexibly, efficiently in the broadcast multicast system, be used for the service continuation of in different range of managements, managing the broadcast multi-broadcasting dynamic allocation of resources and handling the broadcast multi-broadcasting service.
Described content Distribution Center (CDC) 5, as a data distribution entity, being used for the broadcast multi-broadcasting data provides and issues.
Usually, the transmission of a wireless broadcast/multicast service is from content Distribution Center (CDC) 5.Content Distribution Center 5 obtains the data source of broadcast multi-broadcasting service from content supplier, to each broadcast multi-broadcasting service that can provide, provide the zone service of sending available bulletin to the initial service that is disposed then by notification broadcast multicast gateway (MB-GW) 1; After the broadcast multi-broadcasting data have been ready to, broadcast multi-broadcasting gateway (MB-GW) 1 will send the session start information to relevant zone; Corresponding then broadcast multi-broadcasting gateway 1 request content Distribution Center 5 sends to broadcast multi-broadcasting gateway 1 self with the form of a standards service from content Distribution Center 5 with the data source of correspondence; After sending Service Notification, broadcast multi-broadcasting gateway 1 just begin to the synchronous transmission broadcast multi-broadcasting service data in relevant wireless base station (BS) 3 to terminal 4.These processes are to carry out under the assistance of broadcast multi-broadcasting control centre (MBC) 2 and control.
A broadcast multi-broadcasting coverage can comprise one or more SFN zone, and the sub-district of single Cell Broadcast CB such as the use that quantity does not wait and possible some do not send the sub-district of service data.
Under the common situation, when Radio Resource was enough, whole broadcast multi-broadcasting coverage was configured to same SFN zone, used identical frequency and the configuration of other data flow to send this broadcast multi-broadcasting service on whole zone.
When the Radio Resource deficiency is thought the SFN zone of an integral body of whole service configuration, can dispose some littler SFN zones in inside, coverage, simultaneously, for using single Cell-Broadcast mode in those sub-districts that can not be distributed into the SFN pattern.
Therefore, resources employment methods comprises single frequency network (SFN) pattern, single frequency network and single sub-district mixed mode, single cell pattern.
Wireless broadcast/multicast system of the present invention, in the wireless broadcast/multicast system (E-MBMS) that strengthens, broadcast multi-broadcasting control centre of the present invention (MBC) 2, comprise service configuration module 21, be used for information on services according to content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
The service configuration module 21 of broadcast multi-broadcasting control centre 2, the information (being information on services) that its broadcast multi-broadcasting that sends according to content Distribution Center 5 is served, the resources employment methods of decision service on the sub-district becomes resources employment methods such as single frequency network, single Cell Broadcast CB or mixed mode for this service configuration.Broadcast multi-broadcasting control centre 2 obtains information such as this scope of serving covering and demand for services from content Distribution Center 5, the resource distribution module 21 of broadcast multi-broadcasting control centre 2 is by checking the resource distribution situation of each sub-district of preserving in the control centre then, coverage and bandwidth demand information in conjunction with this service, decision becomes single frequency network for this service configuration on the sub-district that service covers, resources employment methods such as single Cell Broadcast CB or mixed mode, and by the different different resource distributions of configuration mode control, constitute different scenes, thereby guarantee the continuation of the broadcast multi-broadcasting service of enhancing to the full extent.
Further, described service configuration module 21 comprises SFN area configurations module 211, is used under the single frequency network pattern, to a plurality of sub-districts that SFN zone covers, during the broadcast multi-broadcasting service provides, the resource of whole sub-districts is carried out dynamic management.
Further, described service configuration module 21 comprises resource distribution module 212 and memory module 213.
Described resource distribution module 212 is used under single frequency network and single sub-district mixed mode, according to terminal feedback module 41 information by the up feedback of feedback channel, to the dynamic assignment of the Radio Resource of broadcast multi-broadcasting;
Described memory module 213 is used to store the information such as position, type of each broadcast multi-broadcasting service.
Described portable terminal (MT) 4 comprises feedback module 41, is used for when portable terminal is in connection status, the information of portable terminal by the up network terminal that feeds back to of feedback channel, is carried out the sub-district by network terminal control handoff procedure and switched, and the broadcast multi-broadcasting service.
Further, wireless base station of the present invention (BS) 3 comprises second resource distribution module 31, be used under single Cell-Broadcast mode, carrying out allocation of radio resources, and by sending signaling broadcast multi-broadcasting control centre (MBC) 2 its operations of doing.
Correspondingly, the present invention also provides a kind of wireless broadcast/multicast system resource allocation method, comprises the following steps:
Step S100, according to the information on services of content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
The information (being information on services) that broadcast multi-broadcasting control centre serves according to the broadcast multi-broadcasting that content Distribution Center sends, the resources employment methods of decision service on the sub-district, broadcast multi-broadcasting control centre obtains information such as scope that this service covers and demand for services from content Distribution Center, broadcast multi-broadcasting control centre is by checking the resource distribution situation of each sub-district of preserving in the control centre then, coverage and bandwidth demand information in conjunction with this service, decision becomes single frequency network for this service configuration on the sub-district that service covers, resources employment methods such as single Cell Broadcast CB or mixed mode, and by the different different resource distributions of configuration mode control, constitute different scenes, thereby guarantee the continuation of the broadcast multi-broadcasting service of enhancing to the full extent.
Further, described step S100 comprises the following steps:
Step S110 under the single frequency network pattern, to a plurality of sub-districts that SFN zone covers, during the broadcast multi-broadcasting service provides, carries out dynamic management to the resource of whole sub-districts;
In the wireless broadcast/multicast system (E-MBMS) of the enhancing of having used single frequency network pattern (SFN) technology, comprised the SFN retaining zone in the broadcast multi-broadcasting coverage, by between different sub-districts, using same frequency, send the broadcast multi-broadcasting service and form single frequency network pattern (SFN), so just can improve the availability of frequency spectrum, improve the quality of terminal reception and eliminate edge effect.
A SFN zone can comprise two types sub-district, and a kind of sub-district is common SFN sub-district, and this class sub-district is configured to the SFN pattern and carries out the transmission of broadcast multi-broadcasting data; Another kind of sub-district is to keep the sub-district, the sub-district of the type will be used for the resource allocation of a broadcast multi-broadcasting service equally and serve to this, different is these resources and is not used in the carrying data, promptly this sub-district can not send corresponding broadcast multi-broadcasting service, thereby and corresponding resource is retained the service of getting off to prevent to be assigned to other interference is caused in the SFN sub-district of adjacency.Preferably, in a moment, have only the sub-district of part SFN edges of regions to be configured to the reservation sub-district, to save Radio Resource.
Described dynamic management comprises the following steps:
Step S111, when the sub-district of SFN zone adjacency has the user to add the broadcast multi-broadcasting service, and the resource of this sub-district adds the SFN zone with this sub-district when enough, carries out the expansion in SFN zone;
Particularly, the expansion of described single frequency network (SFN) comprises the following steps:
When portable terminal (MT) application added broadcast multi-broadcasting service S1, S1 did not dispose in this sub-district if wireless base station Cell A detects the broadcast multi-broadcasting service, and then the base station sends the request of broadcast multi-broadcasting service configuration to broadcast multi-broadcasting control centre (MBC);
The base station Dynamic Resource Allocation for Multimedia around this request back detection wireless base station Cell A is received by broadcast multi-broadcasting control centre (MBC);
If wireless base station Cell A is adjacent with a single frequency network (SFN) zone and this single frequency network (SFN) zone has been configured broadcast multi-broadcasting service S1, then broadcast multi-broadcasting control centre (MBC) sends to wireless base station Cell A with the resource allocation information of this single frequency network (SFN), and wireless base station Cell A carries out resource distribution after receiving information;
If distribute the resource identical with single frequency network (SFN) among the wireless base station Cell A then wireless base station CellA is a broadcast multi-broadcasting service S1 resource allocation, adding single frequency network (SFN) zone reports to configuration information broadcast multi-broadcasting control centre (MBC) then.
Step S112, when the sub-district in the SFN zone no longer needed to send the broadcast multi-broadcasting data, Radio Resource was no longer used for the broadcast multi-broadcasting resource in this sub-district, carries out the reduction in SFN zone.
The reduction of described SFN comprises the following steps:
Portable terminal (MT) is when the triggering cell handoff procedure is moved in other sub-districts, if portable terminal (MT) has been configured broadcast multi-broadcasting service S1, then Cell A in wireless base station serves the S1 service change to the report user's of broadcast multi-broadcasting control centre (MBC) broadcast multi-broadcasting in the process of switching;
Broadcast multi-broadcasting control centre (MBC) is after detecting the broadcast multi-broadcasting service S1 configuring condition of portable terminal (MT) Target cell, if find that Target cell has disposed the S1 of broadcast multi-broadcasting control centre and Target cell does not add this single frequency network (SFN) zone, then detect the reception condition of user broadcast multi-broadcasting service S1 in wireless base station Cell A;
If do not have the user receiving broadcast multi-broadcasting service S1 among the wireless base station Cell A, then will distribute to the resource release of broadcast multi-broadcasting service S1 by the notice wireless base station Cell A of broadcast multi-broadcasting control centre (MBC); Simultaneously, the information that single frequency network (SFN) zone covers is revised by broadcast multi-broadcasting control centre (MBC).
Step S120 under single frequency network and single sub-district mixed mode, according to the information of terminal feedback module by the up feedback of feedback channel, to the dynamic assignment of the Radio Resource of broadcast multi-broadcasting, and stores the information such as position, type of each broadcast multi-broadcasting service;
At this moment, described resource allocation method also comprises the following steps:
Step S1201, portable terminal by the up network terminal that feeds back to of feedback channel, carry out its information the sub-district by network terminal control handoff procedure and switch when being in connection status, and the broadcast multi-broadcasting service.
According to the situation that move different minizones, select different allocation of radio resources to give the sub-district, be used for the broadcast multi-broadcasting service.Such as when using static SFN pattern, the border that the user moves the SFN zone will cause broadcast multi-broadcasting control centre (MBC) to distribute a different frequency for Target cell, use the mode of single Cell Broadcast CB that the broadcast multi-broadcasting service is provided in this sub-district.
Under single frequency network and single sub-district mixed mode, wireless broadcast/multicast system aloft interface section uses carrier wave to carry data, and unicast data and broadcast multi-broadcasting data all are to send to portable terminal (MT) by carrier wave.According to the occupation mode of carrier wave, a sub-district can be divided into broadcast multi-broadcasting dedicated cell and mixed cell.For the broadcast multi-broadcasting dedicated cell, all wireless carrier resources all are used to send the broadcast multi-broadcasting data, do not have the existence of unicast service, therefore also do not have the feedback of up channel.Mixed cell has then carried broadcast multi-broadcasting service and unicast data simultaneously on a carrier wave, therefore can use up feedback channels.
For the portable terminal that is in connection status, up feedback mechanism by feedback channel, with the information of portable terminal by the up network terminal that feeds back to of feedback channel, carry out the sub-district by network terminal control handoff procedure and switch, and the behavior that can control the broadcast multi-broadcasting service by network terminal well.
For example, in a possible example, for the user who moves to external cell in the SFN edges of regions, network terminal is by carrying out the SFN expansion, this user's Target cell is configured to the SFN pattern, thereby makes mobile device can receive the continuity of broadcast multi-broadcasting service and assurance reception at Target cell.
For the portable terminal that is in idle condition, when having comprised Target cell in the available set of this terminal but broadcast multi-broadcasting when service of needs is not provided, portable terminal (MT) comes the informing network end by sending the broadcast multi-broadcasting service request, network terminal guarantees the continuation of service according to the network configuration of current area and Target cell, possible situation is that network terminal is set up one with portable terminal in advance and is connected, and the mobile treatment mechanism by connection status guarantees the continuation of serving then.
This broadcast multi-broadcasting service request is relevant with concrete communication system service platform, and the present invention does not add restriction.This request sends to broadcast multi-broadcasting control centre (MBC) by the base station from portable terminal (MT) as a Non-Access Stratum (NAS) signaling.
Further, resource allocation method of the present invention also comprises the following steps:
Step S200 under single Cell-Broadcast mode, carries out allocation of radio resources, and by sending its operation of doing of signaling broadcast multi-broadcasting control centre (MBC).
In some cases, owing to need send signaling simultaneously and sequence of operations such as dispatch, carry out the continuation that the Radio Resource dynamic assignment is difficult to guarantee service by broadcast multi-broadcasting control centre (MBC), therefore, pass through the wireless base station, when using single Cell-Broadcast mode, second resource distribution module by the wireless base station, carry out wireless resource allocation, can reduce the delay of service in handoff procedure to a great extent, and after second resource distribution module of wireless base station carries out resource allocation to the broadcast multi-broadcasting service, by sending its operation of doing of signaling wireless broadcast/multicast control centre (MBC), make wireless broadcast/multicast control centre (MBC) still can on the overall situation, carry out the distribution of resource again.Reduce the load and the time of delay of system when subscriber equipment moves in the minizone in the wireless broadcast/multicast system.
Described when using single Cell-Broadcast mode, carry out the process of allocation of radio resources, comprise the following steps:
Step S210, broadcast multi-broadcasting control centre (MBC) sends configuration information for each broadcast multi-broadcasting service to the cell base station of its covering;
Step S220, detect its other resources configuration receive the broadcast multi-broadcasting service request of portable terminal (MT) as wireless base station Cell A after, if wireless base station Cell A is configured to single Cell-Broadcast mode, then send resource allocation information by the wireless base station from serving to portable terminal (MT) as this broadcast multi-broadcasting, the service configuration information with this user sends to broadcast multi-broadcasting control centre (MBC) simultaneously;
Step S230, broadcast multi-broadcasting control centre (MBC) are kept at this service configuration information on this sub-district after receiving the configuration messages that the wireless base station sends, and as the reference of other sub-districts and/or other broadcast multi-broadcasting service resource allocation.
With the resource distribution of the wireless broadcast/multicast system (E-MBMS) that strengthens in a portable terminal (MT) moving process, wireless broadcast/multicast system of the present invention and resource allocation method thereof are described below.
As shown in Figure 2, portable terminal (MT) is positioned within the SFN zone, has disposed a broadcast multi-broadcasting service (MBMS) on this SFN zone, and portable terminal (MT) is currently located among the A of sub-district and toward sub-district B and moves.
A1, be positioned at the situation of sub-district A, B for portable terminal (MT), a possible example is that sub-district A and two sub-districts of B all are configured to single frequency network pattern (SFN) and are sending the broadcast multi-broadcasting data.
A11) if portable terminal (MT) is in idle condition, portable terminal uses method of cell reselection when move the B sub-district, receives the data of B sub-district;
A11A) when portable terminal (MT) when the base station distance of sub-district A is more and more far away, the signal from sub-district A that portable terminal can receive can weaken gradually.
Use RAKE receiver on the mobile terminal device or similarly can utilize the technology of multipath effect, concentrate information is identical and signal amplitude is maximum (being sub-district B in embodiments of the present invention) selected with the transmission of A sub-district in the available cell of portable terminal.
After the signal amplitude that sends when the wireless base station of sub-district B surpassed a threshold values Ta, the signal that the signal that the wireless base station of sub-district B sends to portable terminal (MT) promptly can send to portable terminal with the wireless base station of sub-district A used RAKE receiver to receive.Owing in the SFN zone, used the synchronized transmission agreement, so the signal that these two sub-districts send can be handled as the situation of a multipath by wireless terminal (MT).
At this moment, owing to used space diversity reception to communicate, portable terminal can obtain to gain preferably, thereby guarantee when the relatively more close cell edge of portable terminal, still can normally receive the broadcast multi-broadcasting service.
The Rake receiver has utilized the notion of space diversity, and the Rake receiver is the device type of a standard, does not limit among the present invention.
A11B) along with portable terminal (MT) is close to sub-district B, the difference in signal strength that the wireless base station of the wireless base station of sub-district A and sub-district B sends to portable terminal is more and more littler, after signal strength signal intensity that portable terminal receives the wireless base station of sub-district B begins to be higher than the signal strength signal intensity of the wireless base station that receives sub-district A and continues for some time t1, portable terminal begins cell reselection process, and with the result of sub-district B as the sub-district gravity treatment.
After this, portable terminal is resident in the B of sub-district, and still use as the emission source of a RAKE receiver base station of sub-district A, and this moment, portable terminal successfully moved to the coverage of B sub-district from the A sub-district.
A11C) if portable terminal (MT) wireless base station of sub-district A further away from each other, make the signal strength signal intensity that receives from the wireless base station of sub-district A be lower than threshold values Ta, then portable terminal is no longer got rid of from current available set from the radio base station receiving data of sub-district A and with the A sub-district.
The sub-district gravity treatment is finished jointly by MT and base station, and the use of space diversity is carried out on MT, is all general process.
In the mobile process of portable terminal (MT), network is not also known the position of portable terminal, can not send signaling information to portable terminal yet, and portable terminal can keep the reception broadcast multi-broadcasting service data that continues in the process that moves.
A12) if portable terminal (MT) is in connection status, this SFN zone has been carried broadcast multi-broadcasting service and unicast service simultaneously in other words, then portable terminal has been assigned with a up channel and has set up a connection, so will the triggering cell handoff procedure to the process that move the B sub-district from the A sub-district, this process with have only in the communication system of unicast services class of operation seemingly, its processing procedure with existing unicast services system such as WCDMA is consistent, just adds the information interaction to the multicast service.The information that sends in this process and the load and the delay that produce for operations such as unicast tunnel distribute can't have influence on the reception of portable terminal (MT) to the broadcast multi-broadcasting data.
A2, portable terminal (MT) are that the B sub-district is positioned at the edge in SFN zone, therefore may be one and keep the sub-district at another possible example that the SFN intra-zone moves; On this reservation sub-district for the Radio Resource of the broadcast multi-broadcasting service of SFN regions carry and be not used in the transmission data.In this case, portable terminal (MT) is in the process that moves to sub-district B, and sub-district B belongs to an available set of portable terminal.
A21) for the system that has used static SFN management, when portable terminal (MT) gradually away from sub-district A and when shifting to sub-district B, the broadcast multi-broadcasting service signal that portable terminal (MT) can receive more and more a little less than.
When A21A) signal strength signal intensity that receives from sub-district A when portable terminal (MT) is lower than a threshold values Tb, portable terminal will send service request to the base station of sub-district A, and this service request has comprised the identification number of B sub-district and the broadcast multi-broadcasting service identifiers of needs.
A21B) base station among the A of sub-district is transmitted to broadcast multi-broadcasting control centre (MBC) with this request, and broadcast multi-broadcasting control centre is configured to single Cell-Broadcast mode with sub-district B, is used to send this broadcast multi-broadcasting service, carries out Dynamic Resource Allocation for Multimedia for sub-district B then.
Can use following processes to describe:
Cell A uses the rrc layer signaling to send the request of broadcast multi-broadcasting service configuration to MBC;
MBC receives this request;
If (MBC calculates this sub-district can not add the SFN zone)
Then
MBC sends community configured information by the RRC signaling to Cell A base station;
Cell A base station becomes to use single Cell-Broadcast mode with this service configuration;
Endif
While (MT sends this broadcast multi-broadcasting service request by RRC message)
Then
Cell A base station will be united the scheduling of the scheduling of this service and unicast services and be carried out;
Cell A sends to MT with scheduling result by physical layer signaling;
End
A21C) after this, the wireless base station of sub-district B will add the broadcast multi-broadcasting service groups, by the synchronized transmission agreement, realize that on sub-district A and sub-district B the broadcast multi-broadcasting data synchronization sends.
A21D) sub-district B has finished and will send behind the synchronized transmission that all portable terminals (MT) can begin to receive the broadcast multi-broadcasting service in the paging information notifying cell, portable terminal then switches and is resident to sub-district B, simultaneously, portable terminal switches to the signal that receives under employed resource of sub-district B and the modulation system.
The broadcast multi-broadcasting service of just bringing into use sub-district B to provide after portable terminal is finished conversion receives data.
Preferably, threshold values Tb is provided with enough highly, and this threshold values Tb is higher than the minimum that portable terminal can correctly receive data, thereby allows portable terminal still can receive the signal of sub-district A when switching the service of a use sub-district B, avoids the discontinuity that occurs serving.
A22) for the system that uses dynamic SFN management, with like the static management system class be, when moving to sub-district B, portable terminal (MT) causes when the signal strength signal intensity that A receives is lower than threshold values Tb, portable terminal will send service request to the wireless base station among the A of sub-district, and this request is transferred in the broadcast multi-broadcasting control centre (MBC) and handles.
Different is, broadcast multi-broadcasting control centre (MBC) does not need to distribute specific Radio Resource for sub-district B, and be to use the Radio Resource that keeps among the B of sub-district that the wireless base station among the B of sub-district is configured to the SFN pattern, simultaneously, broadcast multi-broadcasting control centre (MBC) is arranged to SFN pattern and conduct reservation sub-district use by the extra-regional sub-district of SFN that dynamic SFN management strategy will be adjacent with sub-district B.
Because sub-district B is configured to the pattern for SFN, portable terminal (MT) does not need the switching frequency resource, is common cell reselection process and be to use the sub-district reselection operation resident to the B sub-district, and the present invention does not do qualification.
As shown in Figure 3, portable terminal (MT) is at the schematic diagram of the moving between cells in SFN zone and non-SFN zone.Being divided into two kinds of moving directions below sets forth respectively:
B1, portable terminal move to the sub-district in a non-SFN zone from a SFN edges of regions.
B11) a possible situation is, the border cell A in the SFN zone is sending the broadcast multi-broadcasting service data, and has also carried identical broadcast multi-broadcasting service at the sub-district B outside the SFN zone on other resources.
B11A) if portable terminal (MT) is in connection status in the A of sub-district, then can send measurement report to the wireless base station in the process that each sub-district B of portable terminal moves, finding signal that portable terminal can receive when the base station will the triggering cell handoff procedure when constantly weakening.
By general cell switch process, portable terminal (MT) switches to sub-district B from sub-district A, and on the wireless base station correspondent frequency of reception from the resource switch on the wireless base station of sub-district A to reception sub-district B with the broadcast multi-broadcasting service.
B12B) if portable terminal (MT) is in idle condition in the A of sub-district, then before carrying out the sub-district switching, portable terminal is found the signal grow gradually of the wireless base station of sub-district B in the available set of self, but the wireless base station of sub-district B does not send desired broadcast multi-broadcasting service data on current Radio Resource.Therefore, when the signal strength signal intensity that receives from the wireless base station of sub-district A when portable terminal is reduced to a threshold values Tc, portable terminal (MT) will send to the wireless base station of sub-district A and connect the request of foundation.
The wireless base station of sub-district A begins to set up portable terminal and network one and is connected, and makes portable terminal convert connection status to from idle condition.
Then, because the measuring-signal that the base station of sub-district A receives from portable terminal continues to weaken, switch decision the carrying out sub-district, wireless base station of sub-district A, and by general handoff procedure portable terminal is switched to sub-district B from sub-district A.
Portable terminal has been owing to be transformed into connection status from idle condition in advance, therefore can be by handoff procedure continuous reception broadcast multi-broadcasting data between the sub-district of having used different frequency.
Preferably, the value of the described threshold values Tc wireless base station that is a bit larger tham sub-district A is used to begin the threshold values that determines that portable terminal switches.
B2, another kind of possible situation be, the sub-district A within the SFN zone is sending a broadcast multi-broadcasting service, and the sub-district B that portable terminal (MT) is being shifted to does not carry this service.
If portable terminal (MT) is in connection status, then in the portable terminal moving process, will send measurement report to the base station of sub-district A, the wireless base station of sub-district A is by learning the situation that these base station carrying broadcast multi-broadcastings are served with base station interactive information on every side.When the wireless base station of sub-district A detects portable terminal (MT) feedback measurement report, in case when finding that broadcast multi-broadcasting service quality that portable terminal receives this sub-district is lower than a threshold values Td, the wireless base station of sub-district A sends the service request signaling to broadcast multi-broadcasting control centre (MBC).Broadcast multi-broadcasting control centre carries out resource allocation for this service immediately and distribution result is sent to the wireless base station of sub-district B.Simultaneously, the resource distribution that the wireless base station of sub-district B will just distribute becomes single Cell-Broadcast mode, and then add corresponding broadcast multi-broadcasting group, after this wireless base station of sub-district B promptly begin by and network between synchronous protocol send the broadcast multi-broadcasting service, when the wireless base station of sub-district B begins to carry the broadcast multi-broadcasting service, portable terminal will begin the handoff procedure by network control, switch to sub-district B from sub-district A.Because the wireless base station of sub-district B was configured before switching, and begin to send the broadcast multi-broadcasting service data, so portable terminal can carry out the continuous reception of broadcast multi-broadcasting data the moving process from sub-district A to sub-district B.
B3, portable terminal move to the sub-district of using single frequency network pattern (SFN) from the sub-district of using single Cell Broadcast CB.
B31) if portable terminal (MT) is in connection status, then portable terminal will be triggered to the switching of sub-district A in the process that moves.
Owing to carried the broadcast multi-broadcasting service in the SFN zone, when the decision of the wireless base station of sub-district B begins to switch, by learning the information of the broadcast multi-broadcasting service of carrying on the wireless base station about sub-district A with the interface of base station A.Find two sub-districts when the wireless base station of sub-district B and all carried identical service, when only being to use different Radio Resources, the wireless base station of sub-district B will carry out notifying when unicast data switches portable terminal (MT) that the broadcast multi-broadcasting reception is switched on the employed resource of single frequency network pattern (SFN) at the notice portable terminal.Therefore, as long as the unicast data of portable terminal can receive continuously, then on portable terminal, also can finish switching requirement simultaneously between two sub-districts to the broadcast multi-broadcasting service.
B32) if portable terminal (MT) is in idle condition, then carrying out before the sub-district switches, portable terminal in self available set, find sub-district A the wireless base station signal gradually grow but the wireless base station of sub-district A does not send desired broadcast multi-broadcasting service data on current Radio Resource.Therefore, when the signal strength signal intensity that receives from the wireless base station of sub-district B when portable terminal (MT) is reduced to a threshold values Tc, portable terminal will send to the wireless base station of sub-district B and connect the request of foundation.The wireless base station of sub-district B begins to set up a connection for portable terminal, makes portable terminal convert connection status to from idle condition.
Then, because the measuring-signal that the wireless base station of sub-district B receives from portable terminal continues to weaken, the switching of portable terminal is carried out in the wireless base station decision of sub-district B, by general handoff procedure portable terminal is switched to sub-district A from sub-district B.
After the correct switching of portable terminal finished, portable terminal promptly can receive the broadcast multi-broadcasting data from sub-district A.
Behind a time t2, do not need to handle if in fact portable terminal has any unicast service, then in order to economize on resources, the wireless base station of sub-district A switches to idle condition with portable terminal.After this, as long as portable terminal still moves in the SFN zone, portable terminal can be in idle condition, can guarantee that portable terminal receives the continuity of broadcast multi-broadcasting service this moment.
As shown in Figure 4, when portable terminal when not using the moving between cells of single frequency network pattern (SFN) for two, then identical with process shown in Figure 3 to the processing of this situation, this moment regard a sub-district as only comprise a sub-district SFN zone.Under this situation, can guarantee the continuity that the broadcast multi-broadcasting service receives.
As shown in Figure 5, be a signaling process figure who is in the portable terminal (MT) of idle condition from sub-district A immigration sub-district B.
Generally speaking, if portable terminal (MT) is in connection status, then it triggers handoff procedure when moving between cells, and corresponding broadcast multi-broadcasting signaling has very major part reuse in the signaling of switching, and can reduce signaling consumption like this.
The present invention is provided with the transfer process of unicast data when switching and the conversion of broadcast multi-broadcasting service data is carried out simultaneously, thereby after portable terminal (MT) switching was finished, clean culture and broadcast multi-broadcasting Service Source had all switched in the new sub-district.Here, the wireless base station of sub-district A is sending a broadcast multi-broadcasting service, and the wireless base station of sub-district B does not carry this service.Simultaneously, being located in the process of service request broadcast multi-broadcasting control centre (MBC) decision is configured to single Cell-Broadcast mode with sub-district B and carries the broadcast multi-broadcasting service.
Step 1, when portable terminal (MT) from sub-district A when sub-district B moves, because the broadcast multi-broadcasting service quality variation that receives, portable terminal finds that by measuring oneself is just away from sub-district A simultaneously, then portable terminal (MT) sends service request by up channel to the wireless base station of sub-district A, has comprised the broadcast multi-broadcasting service identifiers and the Target cell of needs in this request;
The description of original text of the present invention is specific to two kinds of situations, mobile management when a kind of MT of being is in idle condition, a kind of mobile management that is MT for connection status, conversion between the two states also is not included among the invention restricted portion, and all mobility actions all are based on MT present located state and set;
Step 6, portable terminal (MT) are transformed into connection status and begin later on to send measurement report to the wireless base station of sub-district A;
Step 7, the initiation handoff procedure that the wireless base station of sub-district A is in good time according to measurement report is when promptly the signal quality that detects current service cell as MT is under some specific threshold values Sho; Carry out Signalling exchange between the wireless base station of the wireless base station of sub-district A and sub-district B, obtain the resource of the clean culture and the broadcast multi-broadcasting service of the portable terminal preparation among the B of sub-district;
Step 8, the wireless base station of sub-district A send hand off signaling according to the information that obtains to portable terminal (MT), and notice portable terminal (MT) all is transformed into clean culture and broadcast multi-broadcasting service on the new channel configuration.
This process prescription is as follows:
Sub-district B initiates scheduling process, for channel is divided in the service of this MT
Sub-district B sends to sub-district A with scheduling result by the RRC signaling
Sub-district A gives MT with the signaling of scheduling by the RRC forwards
MT self data link layer scheduling and the channel multiplexing process in prepare the new channel of use;
Step 9, portable terminal (MT) receives hand off signaling, begins to change the Data Receiving configuration of oneself, and beginning and sub-district B carry out data sync;
Step 10, after data sync was finished, portable terminal sends to switch to the wireless base station of sub-district B finished signaling;
After this, portable terminal is resident to sub-district B and no longer from A reception data;
After step 11, the base station of sub-district B learnt that portable terminal has been finished switching, the wireless base station of notifying cell A discharged the connection resource of portable terminal, and portable terminal is deleted from the member of the multicast group of sub-district A.
Wireless broadcast/multicast system of the present invention and method, in supporting the wireless broadcast/multicast system (E-MBMS) that strengthens, use the single frequency network pattern to improve utilization ratio of wireless resources, continuation that can the service of reasonable assurance broadcast multi-broadcasting when portable terminal is mobile in dissimilar sub-districts also makes full use of the advantage of single frequency network, reduces the quantity of the signaling that is used for the broadcast multi-broadcasting service when improving the wireless resource utility efficiency of system.
In conjunction with the drawings to the description of the specific embodiment of the invention, others of the present invention and feature are conspicuous to those skilled in the art.
More than specific embodiments of the invention are described and illustrate it is exemplary that these embodiment should be considered to it, and be not used in and limit the invention, the present invention should make an explanation according to appended claim.
Claims (14)
1, a kind of wireless broadcast/multicast system, comprise portable terminal, the wireless base station, content Distribution Center, broadcast multi-broadcasting gateway and broadcast multi-broadcasting control centre is characterized in that, described broadcast multi-broadcasting control centre comprises the service configuration module, be used for information on services according to content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
2, wireless broadcast/multicast system according to claim 1 is characterized in that, described resources employment methods is single frequency network pattern or single Cell-Broadcast mode or single sub-district mixed mode resources employment methods.
3, wireless broadcast/multicast system according to claim 1 and 2, it is characterized in that, described service configuration module, comprise the single-frequency network area configuration module, be used under the single frequency network pattern, a plurality of sub-districts to a single-frequency network area covers are providing the broadcast multi-broadcasting viability, and the resource of whole sub-districts is carried out dynamic management.
4, wireless broadcast/multicast system according to claim 1 and 2 is characterized in that, described service configuration module comprises resource distribution module and memory module, wherein:
Described resource distribution module is used under single frequency network and single sub-district mixed mode, according to the information of the up feedback of feedback channel, to the dynamic assignment of the Radio Resource of broadcast multi-broadcasting;
Described memory module is used to store position, the type information of each broadcast multi-broadcasting service.
5, wireless broadcast/multicast system according to claim 1 and 2 is characterized in that, described wireless base station, comprise second resource distribution module, be used under single Cell-Broadcast mode, carrying out allocation of radio resources, and by sending its operation done of the described broadcast multi-broadcasting of signaling control centre.
6, a kind of wireless broadcast/multicast system resource allocation method is characterized in that, comprises the following steps:
Steps A, according to the information on services of content Distribution Center, the resources employment methods of decision service on the sub-district, and by the different different resource distributions of resources employment methods control.
7, wireless broadcast/multicast system resource allocation method according to claim 6 is characterized in that, described steps A comprises the following steps:
Steps A 1, under the situation of resource abundance, broadcast multi-broadcasting control centre becomes to use the single frequency network mode with a service configuration, under the single frequency network pattern, to a plurality of sub-districts that a single-frequency network area covers, during the broadcast multi-broadcasting service provides, the resource of whole sub-districts is carried out dynamic management.
8, wireless broadcast/multicast system resource allocation method according to claim 7 is characterized in that, described steps A 1 comprises the following steps:
Steps A 11 adds the broadcast multi-broadcasting service when there is the user sub-district of single-frequency network area adjacency, and the resource of this sub-district adds single-frequency network area with this sub-district when enough, carries out the expansion of single-frequency network area;
Steps A 12, when the sub-district in the single-frequency network area no longer needed to send the broadcast multi-broadcasting data, Radio Resource was no longer used for the broadcast multi-broadcasting resource in this sub-district, carries out the reduction of single-frequency network area.
9, wireless broadcast/multicast system resource allocation method according to claim 8 is characterized in that, described steps A 11 comprises the following steps:
Steps A 111 when the portable terminal application adds the broadcast multi-broadcasting service, does not dispose in this sub-district if described wireless base station detects the broadcast multi-broadcasting service, and then described wireless base station sends the request of broadcast multi-broadcasting service configuration to broadcast multi-broadcasting control centre;
Steps A 112, described broadcast multi-broadcasting control centre receives that this request back detects the base station Dynamic Resource Allocation for Multimedia around described wireless base station;
Steps A 113, if described wireless base station and single-frequency network area are adjacent and this single-frequency network area has been configured the broadcast multi-broadcasting service, then described broadcast multi-broadcasting control centre sends to this wireless base station with the resource allocation information of this single frequency network, and this wireless base station carries out resource distribution after receiving information;
Steps A 114, if distribute the resource identical with single frequency network in this wireless base station, then this wireless base station is a broadcast multi-broadcasting service configuration resource, and the adding single-frequency network area, then configuration information is reported to described broadcast multi-broadcasting control centre.
10, wireless broadcast/multicast system resource allocation method according to claim 8 is characterized in that, described steps A 12 comprises the following steps:
When steps A 121, portable terminal moved the triggering cell handoff procedure to other sub-districts, if this portable terminal has been configured the broadcast multi-broadcasting service, then user's broadcast multi-broadcasting service change was reported in the wireless base station to broadcast multi-broadcasting control centre in the process of switching;
Steps A 122, this broadcast multi-broadcasting control centre is after detecting the broadcast multi-broadcasting service configuration situation of portable terminal Target cell, if find that Target cell has disposed broadcast multi-broadcasting control service and Target cell does not add described single-frequency network area, then detect the reception condition of user's broadcast multi-broadcasting service in the wireless base station;
Steps A 123 if there is not the user receiving the broadcast multi-broadcasting service in the wireless base station, then will be distributed to the resource release of broadcast multi-broadcasting service by broadcast multi-broadcasting control centre notice wireless base station; Simultaneously, the information that single-frequency network area covers is revised by broadcast multi-broadcasting control centre.
11, wireless broadcast/multicast system resource allocation method according to claim 7 is characterized in that, described steps A also comprises the following steps:
Steps A 2, under the situation of inadequate resource, broadcast multi-broadcasting control centre becomes to use single frequency network and single Cell Broadcast CB hybrid mode with a service configuration; Under single frequency network and single sub-district mixed mode,,, and store position, the type information of each broadcast multi-broadcasting service to the dynamic assignment of the Radio Resource of broadcast multi-broadcasting according to the information of the up feedback of feedback channel.
12, wireless broadcast/multicast system resource allocation method according to claim 11 is characterized in that, described steps A 2 also comprises the following steps:
Portable terminal by the up network terminal that feeds back to of feedback channel, carries out its information the sub-district by network terminal control handoff procedure and switches when being in connection status, and the broadcast multi-broadcasting service.
13, wireless broadcast/multicast system resource allocation method according to claim 11 is characterized in that, also comprises the following steps:
Step B under single Cell-Broadcast mode, carries out allocation of radio resources, and described wireless base station is by sending its operation done of signaling broadcast multi-broadcasting control centre.
14, wireless broadcast/multicast system resource allocation method according to claim 13 is characterized in that, described step B comprises the following steps:
Step B1, broadcast multi-broadcasting control centre sends resource allocation information for each broadcast multi-broadcasting service to the wireless base station of the sub-district of its covering;
Step B2, detect its other resources configuration receive the broadcast multi-broadcasting service request of portable terminal when this wireless base station after, if this wireless base station is configured to single Cell-Broadcast mode, then send resource allocation information by the wireless base station from serving to portable terminal as this broadcast multi-broadcasting, this wireless base station sends to broadcast multi-broadcasting control centre with this user's service configuration information simultaneously;
Step B3, broadcast multi-broadcasting control centre are kept at this service configuration information on this sub-district after receiving the service configuration information that this wireless base station sends, and as the reference of other sub-districts and/or other broadcast multi-broadcasting service resource allocation.
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| CN2008101145411A CN101304560B (en) | 2008-06-10 | 2008-06-10 | Wireless broadcast/multicast system and method |
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| WO2010054572A1 (en) * | 2008-11-14 | 2010-05-20 | 中兴通讯股份有限公司 | Method for selecting subframes of single-cell transmission of multimedia broadcast multicast service |
| CN102655678A (en) * | 2011-03-02 | 2012-09-05 | 中兴通讯股份有限公司 | Methods and apparatus for radio configuration indication |
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| CN101772222B (en) * | 2008-12-29 | 2013-03-20 | 中兴通讯股份有限公司 | Method and system for obtaining MBSFN configuration information of affiliated subdistrict of adjacent base station |
| CN102655678A (en) * | 2011-03-02 | 2012-09-05 | 中兴通讯股份有限公司 | Methods and apparatus for radio configuration indication |
| CN102655678B (en) * | 2011-03-02 | 2015-06-17 | 中兴通讯股份有限公司 | Methods and apparatus for radio configuration indication |
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| CN114642008A (en) * | 2019-11-01 | 2022-06-17 | 高通股份有限公司 | TRS for multicast and broadcast |
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