CN101436942B

CN101436942B - Data transmission method for multicast broadcast service

Info

Publication number: CN101436942B
Application number: CN2008101262256A
Authority: CN
Inventors: 宋建全; 宋翠溪; 许玲; 曲红云; 褚丽
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-11-12
Filing date: 2008-06-26
Publication date: 2012-09-26
Anticipated expiration: 2028-06-26
Also published as: WO2009062355A1; CN101436942A; CN101436943B; CN101436943A

Abstract

The invention provides a data transmission method for multicast and broadcast service. The method comprises the following steps: a concentrated scheduler in a multicast and broadcast region produces multicast and broadcast scheduling payload and multicast and broadcast scheduling control information through scheduling; the concentrated scheduler sends the multicast and broadcast scheduling control information to a local scheduler in the multicast and broadcast region through signaling; and the concentrated scheduler sends the multicast and broadcast scheduling payload to the local scheduler through a data passage. The local scheduler can realize the multicast and broadcast service.

Description

The data transmission method for uplink that is used for multicast broadcast service

Technical field

The present invention relates to the communications field, relate more specifically to a kind of data transmission method for uplink that is used for multicast broadcast service.

Background technology

Definition is to the multicast broadcast service demand of (Multicast and Broadcast Service is called for short MCBCS) in demand working group (Service Provider Work Group is called for short SPWG); In the IEEE802.16e-2005 standard; Support two kinds of multicast broadcast service (Multicast and Broadcast Service; Abbreviation MBS): a kind of is the MBS business that single base station (Base Station is called for short BS) is inserted, and a kind of is the MBS business that many BS insert.MBS business to many BS insert will be supported grand branch collection, realize grand branch collection, need adopt identical transmit mechanism (same subchannel, symbol, modulation coding mode and arrangement mode etc.) to send identical group broadcasting broadcast business data burst in the identical moment.

In realizing process of the present invention, no matter the inventor is NWG agreement or IEEE802.16e if finding, its technical scheme all can not be implemented in the descending sub frame of the identical group broadcasting broadcast business data burst of same moment transmission.

Summary of the invention

The present invention aims to provide a kind of data transmission method for uplink that is used for multicast broadcast service, and is above-mentioned in same problem of sending the descending sub frame of identical group broadcasting broadcast business data burst constantly to solve.

In an embodiment of the present invention, a kind of data transmission method for uplink that is used for multicast broadcast service is provided, has may further comprise the steps: the centralized scheduler in the multicast and broadcast zone produces multicast broadcast scheduling payload and multicast broadcast scheduling control information through scheduling; Centralized scheduler sends to the local scheduler in the multicast and broadcast zone with the multicast broadcast scheduling control information through signaling; Wherein, Said centralized scheduler is provided with temporal information in said multicast broadcast scheduling control information, it is used to indicate the time of said local scheduler interface transmission aloft multicast and broadcast data burst; Centralized scheduler sends to local scheduler with the multicast broadcast scheduling payload through data channel.

Preferably, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: centralized scheduler will be used for constructing multicast and broadcast map information unit with or be used to construct the information architecture multicast broadcast scheduling control information of the multicast and broadcast data message unit of multicast and broadcast mapping message.

Preferably, this data transmission method for uplink also comprises: local scheduler is according to the indication structure multicast and broadcast map information unit and or the multicast and broadcast mapping message of multicast broadcast scheduling control information.

Preferably, the information that is used to construct multicast and broadcast map information unit comprises following part or all of parameter: the physical layer characteristic parameters of the burst of the sign in multicast and broadcast zone, the burst position information of multicast and broadcast mapping message, multicast and broadcast mapping message.

Preferably, the burst position information of multicast and broadcast mapping message comprises following part or all of parameter: the positional information in frame position information, the frame; Wherein the positional information in the frame comprises following part or all of parameter: symbol offset number, subchannel offset number, subchannel number, number of symbols.

Preferably, the physical layer characteristic parameters of the burst of multicast and broadcast mapping message comprises following part or all of parameter: alignment characteristics, DL PermBase, PRBS_ID, Boosting, forward error correction code type, modulation type, code weight are counted again; Wherein forward error correction code type and modulation type are described with the downlink burst property value or are used sign indicating number to characterize with corresponding following between-line spacing.

Preferably, the information that is used for constructing each multicast and broadcast data message unit of multicast and broadcast mapping message comprises following part or all of parameter: the multicast connection identifier of a multicast and broadcast data burst with or logical identifier, the physical layer characteristic parameters of a multicast and broadcast data burst, the positional information of a multicast and broadcast data burst, the burst position information of next multicast and broadcast mapping message.

Preferably, the physical layer characteristic parameters of multicast and broadcast data burst comprises following part or all of parameter: alignment characteristics, Boosting, forward error correction code type, modulation type, code weight be number, HARQ parameter again; Wherein forward error correction code type and modulation type are described with the downlink burst property value or are used sign indicating number to characterize with corresponding following between-line spacing.

Preferably, the positional information of multicast and broadcast data burst comprises following part or all of parameter: the positional information in frame position information, the frame; The position packets of information is drawn together following part or all of parameter in the frame: symbol offset number, subchannel offset number, subchannel number, number of symbols.

Preferably, the burst position information of next multicast and broadcast mapping message comprises following part or all of parameter: the positional information in frame position information, the frame; The position packets of information is drawn together following part or all of parameter in the frame: symbol offset number, subchannel offset number, subchannel number, number of symbols.

Preferably; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and also comprises: centralized scheduler is with the mapping ruler of the multicast and broadcast message that receives to multicast broadcast service medium access control layer protocol data cell; With or multicast broadcast service medium access control layer protocol data cell to the mapping ruler of the burst of multicast and broadcast data M AC layer and or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame be set in the multicast broadcast scheduling control information; Mapping ruler comprises partly or entirely following: mapping order, packing, burst, cascade.

Preferably, centralized scheduler is according to the part of following information with all dispatch: the characterisitic parameter of the quality of service characteristics parameter of buffer memory multicast and broadcast message, multicast broadcast service, available radio resources, physical layer, the delay character in the multicast and broadcast zone.

Preferably, the centralized scheduler in the multicast and broadcast zone specifically comprises through scheduling generation multicast broadcast scheduling payload: centralized scheduler is built into the multicast broadcast scheduling payload with the multicast and broadcast message that receives; And number for the multicast and broadcast message in the multicast and broadcast payload; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: in the multicast broadcast scheduling control information, be provided with the multicast and broadcast message to the mapping ruler of multicast broadcast service medium access control layer protocol data cell with or multicast broadcast service medium access control layer protocol data cell to the mapping ruler of multicast and broadcast data M AC layer burst with or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame; The multicast broadcast scheduling control information also comprises the multicast and broadcast message numbering scope that the multicast and broadcast data burst comprises.

Preferably, this data transmission method for uplink also comprises: local scheduler is configured to the burst of multicast and broadcast data M AC layer according to the mapping ruler in the multicast broadcast scheduling control information with the multicast broadcast scheduling payload; Local scheduler is encoded to the burst of multicast and broadcast data PHY layer according to multicast and broadcast data burst physical layer characteristic parameters in the multicast broadcast scheduling control information with multicast and broadcast data M AC layer Burst Channel; Local scheduler is according to multicast and broadcast burst position information in the multicast broadcast scheduling control information and the multicast broadcast scheduling payload interface temporal information of sending aloft, the burst of multicast and broadcast data PHY layer is mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably, the centralized scheduler in the multicast and broadcast zone specifically comprises through the control information of scheduling generation multicast broadcast scheduling: centralized scheduler comprises in the multicast and broadcast control information: the Base Serial Number of the multicast and broadcast message of each multicast and broadcast burst and the part or all of information that is used for constructing the multicast and broadcast mapping message multicast and broadcast data message unit corresponding with a plurality of multicast and broadcast data bursts; Data transmission method for uplink also comprises: local scheduler is constructed a plurality of multicast and broadcast data M AC layer burst according to the information in the multicast broadcast scheduling control information with the multicast broadcast scheduling payload; And after the physical layer process chnnel coding, change multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer, and the burst of multicast and broadcast data PHY layer be mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: centralized scheduler converts the multicast and broadcast message that receives to multicast and broadcast medium access control layer protocol data cell, is built into the multicast broadcast scheduling payload then; And the multicast and broadcast medium access control layer protocol data cell in the multicast and broadcast numbered; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: in the multicast broadcast scheduling control information, comprise multicast broadcast service medium access control layer protocol data cell to the mapping ruler of multicast and broadcast data M AC layer burst with or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame; The multicast broadcast scheduling control information also comprises the payload scope that the multicast and broadcast data burst comprises.

Preferably, this data transmission method for uplink also comprises: local scheduler is configured to the burst of multicast and broadcast data M AC layer according to the mapping ruler in the multicast broadcast scheduling control information with the multicast broadcast scheduling payload; Local scheduler is encoded to the burst of multicast and broadcast data PHY layer according to multicast and broadcast data burst physical layer characteristic parameters in the multicast broadcast scheduling control information with multicast and broadcast data M AC layer Burst Channel; Local scheduler according to multicast and broadcast burst position information in the multicast broadcast scheduling control information with or the multicast broadcast scheduling control information in the multicast broadcast scheduling payload interface temporal information of sending aloft, the burst of multicast and broadcast data PHY layer is mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: centralized scheduler comprises in the multicast and broadcast control information: the Base Serial Number of the multicast and broadcast medium access control layer protocol data cell of each multicast and broadcast burst and be used for constructing the part or all of information in the multicast and broadcast mapping message multicast and broadcast data message unit corresponding with a plurality of multicast and broadcast data bursts; Data transmission method for uplink also comprises: local scheduler is constructed a plurality of multicast and broadcast data M AC layer burst according to the information in the multicast broadcast scheduling control information with the multicast broadcast scheduling payload; And behind physical layer channel code, change multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer, and the burst of multicast and broadcast data PHY layer be mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: centralized scheduler converts the multicast and broadcast message of reception the burst of to multicast and broadcast data M AC layer, is built into the multicast broadcast scheduling payload then; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame is set in the multicast broadcast scheduling control information.

Preferably, this data transmission method for uplink also comprises: local scheduler is encoded to the burst of multicast and broadcast data PHY layer according to multicast and broadcast data burst physical layer characteristic parameters in the multicast broadcast scheduling control information with multicast and broadcast data M AC layer Burst Channel; Local scheduler according to the positional information of multicast and broadcast data burst in the multicast broadcast scheduling control information with or the multicast broadcast scheduling control information in the multicast broadcast scheduling payload interface temporal information of sending aloft, the burst of multicast and broadcast PHY layer is mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably, the multicast broadcast scheduling payload comprises a plurality of multicast and broadcast data M AC layer burst; The multicast and broadcast control information also comprises: the part or all of information in the multicast and broadcast mapping message in the multicast and broadcast data message unit corresponding with a plurality of multicast and broadcast data bursts; Data transmission method for uplink also comprises: local scheduler changes multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer according to the information in the multicast broadcast scheduling control information behind physical layer channel code, and the burst of multicast and broadcast data PHY layer is mapped to corresponding zone in the descending sub frame of corresponding frame number.

Preferably; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: centralized scheduler becomes the burst of multicast broadcast data MAC layer with the multicast and broadcast message that receives through medium Access Layer treatment conversion; Form the multicast and broadcast data PHY layer burst of physical layer then through physical layer channel code, the burst of multicast and broadcast data PHY layer is built into the multicast broadcast scheduling payload then; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame is set in the multicast broadcast scheduling control information.

Preferably; This data transmission method for uplink also comprises: local scheduler is mapped to the burst of multicast and broadcast data PHY layer in the zone of the correspondence in the descending sub frame in the corresponding frame number according to the temporal information of the interface transmission aloft of structure multicast and broadcast burst position information and multicast broadcast scheduling payload in the multicast broadcast scheduling control information.

Preferably, the multicast broadcast scheduling payload comprises a plurality of multicast and broadcast data PHY layer burst; The multicast and broadcast control information also comprises: the part or all of information in the multicast and broadcast mapping message in the multicast and broadcast data message unit corresponding with the burst of a plurality of multicast and broadcast data PHY layers; Data transmission method for uplink also comprises: local scheduler is mapped to the burst of multicast and broadcast data PHY layer in the zone of the correspondence in the descending sub frame in the corresponding frame number according to the temporal information of the interface transmission aloft of structure multicast and broadcast burst position information and multicast broadcast scheduling payload in the multicast broadcast scheduling control information.

Preferably, the multicast broadcast scheduling control information with or the multicast broadcast scheduling payload also comprise length information.

Preferably; The multicast broadcast scheduling control information with or the multicast broadcast scheduling payload also comprise check code; Check code is to the multicast broadcast scheduling control information or/and the verification of multicast broadcast scheduling payload, and data transmission method for uplink also comprises: local scheduler also according to check code to the multicast broadcast scheduling control information with or the multicast broadcast scheduling payload carry out completeness check.

Preferably, this data transmission method for uplink also comprises: if the multicast broadcast scheduling control information with or the multicast broadcast scheduling payload through completeness check, then local scheduler is initiated repeat requests or is carried out fault processing.

Preferably, this data transmission method for uplink also comprises: centralized scheduler with the multicast broadcast scheduling control information with or the multicast broadcast scheduling payload respectively through signaling with or data channel be sent to the local scheduler in the multicast broadcast service zone once more.

Preferably, centralized scheduler comprises the multicast broadcast scheduling control information through the local scheduling implement body that signaling sends in the multicast and broadcast zone: the message that centralized scheduler adopts periodic messages or multicast broadcast service to set up in the process is delivered to local scheduler with the part or all of information in the multicast broadcast scheduling control information.

Preferably, this data transmission method for uplink also comprises: when the information of transmitting when changing, centralized scheduler notice local scheduler changes.

Preferably, centralized scheduler with or local scheduler obtain the part or all of information in the multicast broadcast scheduling control information through configuration.

Preferably, this data transmission method for uplink also comprises: when information configured when changing, centralized scheduler with or local scheduler to obtain the configuration information of change again.

Preferably, centralized scheduler is arranged in Access Network gateway or the base station or the separate server in multicast and broadcast zone.

Preferably, each realizes that there is a centralized scheduler in the multicast and broadcast zone of grand branch collection; Local scheduler is arranged in each base station in multicast and broadcast zone.

Preferably; Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: centralized scheduler is provided with temporal information in the multicast broadcast scheduling control information; Its also be used to indicate local scheduler aloft interface send multicast and broadcast map information unit time and or time of multicast and broadcast mapping message burst; Data transmission method for uplink also comprises: local scheduler is according to the composition of content multicast and broadcast map information unit of multicast broadcast scheduling control information; And local scheduler sends multicast and broadcast map information unit in the temporal information of the indicated multicast and broadcast map information unit interface transmission aloft of multicast broadcast scheduling control information through air interface; Local scheduler is according to the composition of content multicast and broadcast mapping message of multicast broadcast scheduling control information; And the temporal information of the multicast and broadcast mapping message of local scheduler in multicast broadcast scheduling control information interface transmission is aloft sent the multicast and broadcast mapping message through air interface.

Preferably, centralized scheduler is provided with temporal information and specifically comprises in the multicast broadcast scheduling control information: centralized scheduler is gathered the own time delay that arrives between each local scheduler; The maximum delay of Yanzhong when centralized scheduler is confirmed; Centralized scheduler is provided with temporal information according to maximum delay.

Preferably, centralized scheduler collection oneself specifically comprises below the collection part or all of to the time delay between each local scheduler: the time of propagation delay time, processing delay, retransmission delay time, multicast broadcast service forward scheduling.

Preferably, the time delay of centralized scheduler collection oneself between each local scheduler specifically comprises: when centralized scheduler or local scheduler send message or message, in message or message, stamp the time tag information when sending message; When centralized scheduler collection or local scheduler are received message or message, utilize the time tag information calculation delay.

Preferably, centralized scheduler collection oneself specifically comprises to the time delay between each local scheduler: when collecting the time delay change, centralized scheduler is upgraded time delay.

Preferably, the maximum delay of Yanzhong specifically comprised when centralized scheduler was confirmed: centralized scheduler is according to the renewal of time delay, to determine whether to upgrade maximum delay.

Preferably; Collecting time delay changes and specifically to comprise: when local scheduler receive the multicast broadcast scheduling control information with or time of multicast broadcast scheduling payload early than or when being later than indicated moment of temporal information, the local scheduler decision whether to centralized scheduler report its receive the multicast broadcast scheduling control information and or time of multicast broadcast scheduling payload and multicast broadcast scheduling control information and or multicast broadcast scheduling payload relevant information aloft interface send the time difference between the absolute time.

Preferably, local scheduler according to the part or all of decision in the following strategy whether to centralized scheduler report its receive the multicast broadcast scheduling control information and or time of multicast broadcast scheduling payload and multicast broadcast scheduling control information and or multicast broadcast scheduling payload relevant information aloft interface send the time difference between the absolute time: the time difference greater than preset threshold value with or continuously time of occurrence deviation number of times greater than preset threshold value.

Preferably, centralized scheduler is provided with temporal information according to maximum delay and specifically comprises: centralized scheduler with maximum delay calculate multicast and broadcast map information unit with or the multicast and broadcast mapping message with or the multicast and broadcast data burst moment or the frame number that send of interface aloft.

Preferably, the maximum delay of Yanzhong specifically comprised when centralized scheduler was confirmed: centralized scheduler is provided with maximum delay according to QoS parameter, maximum delay more than or equal to the time Yanzhong maximum time delay.

Preferably; According to the time delay of each local scheduler respectively to each local scheduler send multicast broadcast scheduling control information with or the multicast broadcast scheduling payload specifically comprise: the indicated moment of centralized scheduler information computing time deducts the time delay of each local scheduler, obtains each delivery time; Centralized scheduler is sent multicast broadcast scheduling control information and or multicast broadcast scheduling payload at each delivery time with each local scheduler of forward direction respectively.

The data transmission method for uplink of the foregoing description has been constructed a kind of method of passing through signaling and broadcast scheduling control information of data channel transport multicast and multicast broadcast scheduling payload respectively; Can solve above-mentioned problem of sending the descending sub frame of identical group broadcasting broadcast business data burst, therefore realize multicast broadcast service in the same moment.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 shows the flow chart according to the data transmission method for uplink that is used for multicast broadcast service of the embodiment of the invention;

Fig. 2 shows the flow chart according to the data transmission method for uplink that is used for multicast broadcast service of the embodiment of the invention;

Fig. 3 shows the sketch map according to the network of the centralized scheduler of the embodiment of the invention and local scheduler composition; And

Fig. 4 shows the sketch map according to the input and the input of the centralized scheduler of the embodiment of the invention.

Embodiment

Below with reference to accompanying drawing and combine embodiment, specify the present invention.

Will be in the MBS zone (set of one group of base station; They transmit identical multicast broadcast service; These base stations have identical multicast connection identifier and security association) in realize that the professional Hong Fenji of MBS (is exactly that the terminal receives same business from a plurality of base stations; MBS to many base stations is professional, needs to support grand branch collection), then to solve in the same moment and adopt same transmit mechanism to transmit same MBS data burst.Embodiments of the invention can be realized the code stream behind burst of MBS MAC PDU and MBS MAC layer data and the physical layer channel code is dispatched and constructed to multicast broadcast service; Be MBS PHY data burst, and guarantee that MBS PHY burst is mapped to the same position of same frame number.

Fig. 1 shows the flow chart according to the data transmission method for uplink that is used for multicast broadcast service of the embodiment of the invention, may further comprise the steps:

Step S10, the centralized scheduler in the multicast and broadcast zone produces multicast broadcast scheduling payload and multicast broadcast scheduling control information through scheduling;

Step S20, centralized scheduler as the multicast and broadcast header, constitutes multicast and broadcast data channel protocol data cell with the multicast broadcast scheduling payload as the multicast and broadcast payload with the multicast broadcast scheduling control information;

Step S30, centralized scheduler is sent to the local scheduler in the multicast broadcast service zone with multicast and broadcast data channel protocol data cell.

In above-mentioned data transmission method for uplink; Centralized scheduler in the multicast broadcast service zone produces multicast and broadcast data channel protocol data cell (being called MBS DP PDU here) in scheduling process; The multicast broadcast service upper strata message that wherein will participate in this scheduling changes the multicast broadcast scheduling payload (being called MBS MAC Payload here) in the multicast and broadcast data channel protocol data cell into, and the control information that scheduling process produces is as the multicast and broadcast header in the multicast and broadcast protocol Data Unit (being called MBS Header here); And multicast and broadcast data channel protocol data cell is sent to the local scheduler in the multicast broadcast service zone through multicast and broadcast data channel (being called MBS DP here); And local scheduler is according to broadcasting header and multicast broadcast scheduling payload from the group in the multicast and broadcast data channel protocol data cell of centralized scheduler; Multicast broadcast scheduling payload wherein is configured to the multicast broadcast service medium access control layer protocol data cell of air interface and the code stream after multicast and broadcast MAC data burst and the physical layer encodes, i.e. MBS PHY burst.And, be mapped to designated frame sequence number and frame position according to temporal information and positional information from multicast and broadcast data burst in the multicast and broadcast header in the multicast and broadcast data channel protocol data cell of centralized scheduler; Local scheduler shines upon (MBS MAP) message according to the broadcasting of the group in multicast and broadcast data channel protocol data cell header structure multicast and broadcast map information unit (MBS MAP IE) and multicast and broadcast in addition, and through correlation time in the header, information sent to the terminal at the frame number of appointment through air interface; Wherein positional information and the physical layer characteristic parameters of multicast and broadcast mapping message burst in frame is to come from the multicast and broadcast header.

Wherein, centralized scheduler can be according to multicast broadcast service upper strata message, available wireless parameter, multicast and broadcast quality of service characteristics parameter, the multicast and broadcast zone delay character of buffer memory, and physical layer characteristic parameters is dispatched.

Centralized scheduler can be with this dispatch group multicast broadcasting service upper strata message (being called MBS MAC SDU here, multicast and broadcast media access control layer service data unit) as multicast broadcast scheduling payload (being called MBS Payload here); Also can be with being configured to multicast and broadcast medium access control layer protocol data cell (being called MBS MAC PDU here) as the multicast broadcast scheduling payload through this dispatch group multicast broadcasting service upper strata message, construction process possibly relate to multicast broadcast service upper layer data message is carried out burst or packing; Or with the multicast and broadcast MAC layer data of multicast and broadcast medium access control layer protocol data unit construction burst (being called MBS Data Burst here) as the multicast broadcast scheduling payload, construction process possibly relate to the cascade to multicast and broadcast medium access control layer protocol data cell; Or with the code stream that forms physical layer behind the multicast and broadcast MAC layer data burst channel coding, i.e. multicast and broadcast PHY layer burst is as the multicast and broadcast payload.

Different according to MBS Payload type, MBS Header can have following rule part or all of: MBS MAC SDU structure MBS MAC PDU mapping ruler; The mapping ruler of MBS MAC PDU structure MBS MAC Burst; The chnnel coding rule of physical layer; MBS PHY layer bursts to the fill rule in descending sub frame zone.If MBS Payload is MBS MAC SDU, if then can comprise the part or all of of rule among the MBS Header: include MBS MAC SDU structure MBS MAC PDU mapping ruler; And the mapping ruler of MBS MAC PDU structure MBS MAC Burst; The chnnel coding rule of physical layer; MBS PHY Burst is to the fill rule in descending sub frame zone.If MBS Payload is MBS MAC PDU, then can include the part or all of of following rule among the MBS Header: the mapping ruler of MBS MAC PDU structure MBS MAC Burst; The chnnel coding rule of physical layer; MBS PHY Burst is to the fill rule in descending sub frame zone.If MBS Payload is MBS MAC Burst, then can include the part or all of of following rule among the MBS Header: the chnnel coding rule of physical layer; MBS PHY Burst is to the fill rule in descending sub frame zone.If MBS Payload is the code stream that produces through physical layer process, then can include the part or all of of following rule among the MBS Header: MBS PHY Burst is to the fill rule in descending sub frame zone.Wherein MBS MAC SDU structure MBS MAC PDU mapping ruler can comprise mapping order, packing, burst etc.; Wherein the mapping ruler of MBS MAC PDU structure MBS MAC Burst can comprise the mapping sequential scheduling.

The multicast and broadcast header that centralized scheduler produces can include the necessary information of structure multicast and broadcast map information unit, multicast and broadcast mapping message.

Multicast and broadcast map information unit can be used for indicating multicast and broadcast mapping message burst position information and multicast and broadcast mapping message burst physical layer characteristic parameters; Therefore the information that wherein is used to construct multicast and broadcast map information unit can have: the physical layer characteristic parameters of multicast and broadcast area identification, multicast and broadcast mapping message burst position information, the burst of multicast and broadcast mapping message.Multicast and broadcast mapping message burst position information comprises: frame position information, the positional information in the frame; Wherein the positional information in the frame can comprise following part or all of parameter: symbol offset number, subchannel skew number, subchannel number, number of symbols; The physical layer characteristic parameters of multicast and broadcast mapping message burst comprises following part or all of parameter: alignment characteristics, DL PermBase, PRBS_ID, Boosting, forward error correction code type, and modulation type, code weight is counted again; Wherein error correcting code type and modulation type also can be called the downlink burst attribute, can describe with the downlink burst property value, also can use corresponding following between-line spacing to use sign indicating number to characterize.

Because the multicast and broadcast mapping message can comprise a plurality of multicast and broadcast data messages unit; Each multicast and broadcast data message unit is used for indicating the positional information of multicast and broadcast data burst and the physical layer characteristic parameters of multicast and broadcast data burst; Therefore the information that wherein is used for constructing the multicast and broadcast mapping message is the information of each the multicast and broadcast data message unit that is used to construct the multicast and broadcast mapping message; Its information that comprises can have: the multicast connection identifier of multicast and broadcast data burst with or the physical layer characteristic parameters of logical identifier, multicast and broadcast data burst; The positional information of multicast and broadcast data burst, the positional information of next multicast and broadcast mapping message.The physical layer characteristic parameters of multicast and broadcast data burst comprises following parameter: alignment characteristics, Boosting, forward error correction code type, and modulation type, code weight is number, HARQ parameter again; Wherein error correcting code type and modulation type also can be called the downlink burst attribute, can describe with the downlink burst property value, also can use corresponding following between-line spacing to use sign indicating number to characterize; The positional information of multicast and broadcast data burst comprises parameter: frame position information, the positional information in the frame; And positional information can comprise following part or all of parameter in the frame: symbol offset number, subchannel skew number, subchannel number, number of symbols; The positional information of next multicast and broadcast mapping message comprises following parameter: frame position information, the positional information in the frame; And positional information can comprise following part or all of parameter in the frame: symbol offset number, subchannel skew number, subchannel number, number of symbols.

Wherein, the multicast and broadcast header can include descending multicast broadcast information unit or/and multicast and broadcast message with or the multicast broadcast scheduling payload interface temporal information or the frame position information of sending aloft.

Centralized scheduler can the multicast and broadcast data channel protocol data cell that structure is good send to the local scheduler in the multicast and broadcast zone through the multicast and broadcast data channel; Centralized scheduler in the multicast and broadcast of each grand branch collection zone wherein, centralized scheduler can be positioned at Access Network gateway, selected base station or server independently; Wherein there is a local scheduler each base station.

Wherein, Centralized scheduler is disposable to be sent to all local schedulers in the multicast broadcast service zone with multicast and broadcast data channel protocol data cell, or sends multicast and broadcast data channel protocol data cell to each local scheduler respectively according to the delay character of each local scheduler.

Wherein, also can comprise length information in the multicast and broadcast data channel protocol data cell.

Wherein, also can comprise check code in the multicast and broadcast data channel protocol data cell.

Local scheduler also can carry out completeness check to multicast and broadcast data channel protocol data cell according to check code.If multicast and broadcast data channel protocol data cell is not through completeness check, then whether local scheduler can initiate repeat requests or carry out fault processing according to the predetermined policy decision.

Local scheduler also can be constructed multicast and broadcast map information unit (MBS MAP IE) and multicast and broadcast mapping (MBS MAP) message according to the information in the multicast and broadcast header in the multicast and broadcast data channel protocol data cell.Wherein, MBS MAP message can comprise 0, one or more instances in the following information element: multicast and broadcast data message unit (MBS DATA IE), expansion multicast broadcast data information unit (Extended MBS DATA IE), multicast and broadcast data time divide collection information unit (MBS DATA Time Diversity IE).Alternatively, centralized scheduler also can have been constructed MBS MAP IE or MBS MAP message directly sends to local scheduler in the multicast and broadcast header.

Local scheduler can send multicast and broadcast map information unit and multicast and broadcast mapping message at particular frame through air interface according to temporal information in the multicast and broadcast header; Positional information and the physical layer characteristic parameters of the burst of wherein sending the multicast and broadcast mapping message in frame is corresponding with relevant parameter in the multicast and broadcast header.

Local scheduler can be got involved key-course protocol Data Unit and burst of multicast and broadcast MAC layer data and the burst of the multicast and broadcast PHY layer behind physical layer channel code according to information in the multicast and broadcast header and multicast broadcast scheduling payload structure multicast and broadcast medium; Construction process is relevant with payload type; If the multicast broadcast scheduling payload is a multicast broadcast service upper strata message, then can constructs the multicast and broadcast medium and get involved key-course protocol Data Unit and burst of multicast and broadcast MAC layer data and the burst of multicast and broadcast PHY layer; Get involved the key-course protocol Data Unit if the multicast broadcast scheduling payload is the multicast and broadcast medium, then can construct burst of multicast and broadcast MAC layer data and the burst of multicast and broadcast PHY layer; If the multicast broadcast scheduling payload is the burst of multicast and broadcast MAC layer data, be the burst of multicast and broadcast PHY layer through physical layer channel code then with multicast and broadcast MAC data burst; If the multicast broadcast scheduling payload is the burst of multicast and broadcast PHY layer, can directly use.Wherein construct multicast and broadcast medium intervention key-course protocol Data Unit and possibly relate to packing and burst; The burst of structure multicast and broadcast MAC layer data possibly relate to cascade.

Local scheduler can be according to control information in the multicast and broadcast header, and necessary information and the multicast and broadcast payload of promptly the constructing multicast and broadcast message aloft assigned address that said multicast and broadcast PHY layer burst is mapped in the descending sub frame of particular frame sequence number of the interface temporal information of sending sends.

The situation that the multicast and broadcast data channel protocol data cell of centralized scheduler structure just only comprises a multicast and broadcast data burst is mentioned in the front; The multicast and broadcast data channel protocol data cell that the centralized scheduler structure is described below comprises the situation of a plurality of multicast and broadcast data bursts.In this case, the MBS Header of MBS DP PDU and MBS Payload can comprise the information of a plurality of MBS data bursts.Because all corresponding MBS data burst of any instance of the multicast and broadcast data message unit (MBS DATA IE, Extended MBS DATA IE, MBS DATA Time Diversity IE) in the MBS MAP message, so can comprise the necessary information of constructing a plurality of multicast and broadcast data messages unit instance in the MBS MAP message among the MBS Header.Same MBS Payload also can comprise the corresponding payload of a plurality of multicast and broadcast data bursts.

Wherein, If in the output of centralized scheduler; Comprise in the structure multicast and broadcast mapping message group broadcasting broadcast business data information unit (MBS DATA IE, Extended MBS DATA IE, MBS DATA Time Diversity IE) instance in the information of multicast and broadcast head more than one; Then the output of centralized scheduler can be numbered data cell in the multicast broadcast scheduling payload on the one hand, here data cell relevant with the multicast broadcast scheduling payload type (can be burst of multicast broadcast service upper-layer protocol data cell or multicast and broadcast medium access control layer protocol data cell or multicast and broadcast data M AC layer or the burst of multicast and broadcast PHY layer); The schedule information that can comprise simultaneously each group broadcasting broadcast business data information unit instance in the multicast and broadcast mapping message in the multicast and broadcast head except the multicast connection identifier of above-mentioned multicast and broadcast data with or the physical layer characteristic parameters of logical identifier, multicast and broadcast data burst; The positional information of multicast and broadcast data burst; Outside the temporal information of the positional information of next multicast and broadcast mapping message, multicast and broadcast data burst interface emission aloft; Can also comprise the corresponding starting point and the terminal point of data cell in the multicast broadcast scheduling payload of multicast and broadcast data burst that this instance confirms; If corresponding multicast broadcast scheduling payload comprises burst information, then also can comprise burst information.

In addition, local scheduler can be constructed each instance of the multicast and broadcast data message unit of multicast and broadcast mapping message according to the multicast and broadcast header.Local scheduling gas device can send the multicast and broadcast message bursts at particular frame through air interface according to the temporal information in the multicast and broadcast header simultaneously; It is corresponding with relevant parameter in the multicast and broadcast header wherein to send positional information and the physical layer characteristic parameters of multicast and broadcast message bursts in frame.

In addition; Local scheduler can according to the corresponding multicast and broadcast medium access control layer protocol counting unit of the information of each multicast and broadcast data message unit in the multicast and broadcast header and each multicast and broadcast data message unit instance of corresponding multicast broadcast scheduling payload structure with or the multicast and broadcast data burst, concrete construction process is relevant with the multicast broadcast scheduling payload type.Local scheduler can send the multicast and broadcast data burst at particular frame through air interface according to the temporal information in each multicast broadcast information unit instance in the multicast and broadcast header simultaneously; It is corresponding wherein to send in positional information and the physical layer characteristic parameters of multicast and broadcast data burst in frame and the multicast and broadcast header relevant parameter in each multicast and broadcast data message unit instance;

More than be that centralized scheduler is configured to the method that group broadcasting broadcast business data channel protocol data cell sends to the preferred embodiment of multicast and broadcast zone realization data sync to scheduling result; Wherein the multicast broadcast service upper layer data unit in the scheduling changes the multicast broadcast scheduling payload in the group broadcasting broadcast business data channel protocol data cell into, and the control information in the scheduling changes the multicast and broadcast header in the data channel protocol data cell into.

In addition; Centralized scheduler can also transmit multicast broadcast scheduling payload in the scheduling result and multicast broadcast scheduling business control information respectively through data channel and signaling; Send to the local scheduler in the multicast and broadcast zone, do not send and be not configured to multicast and broadcast data channel protocol data cell.

Fig. 2 shows the flow chart according to the data transmission method for uplink that is used for multicast broadcast service of the embodiment of the invention, may further comprise the steps:

Step S15, the centralized scheduler in the multicast and broadcast zone produces multicast broadcast scheduling payload and multicast broadcast scheduling control information through scheduling;

Step S25, centralized scheduler sends to the local scheduler in the multicast and broadcast zone with the multicast broadcast scheduling control information through signaling;

Step S35, centralized scheduler sends to local scheduler with the multicast broadcast scheduling payload through data channel.

This data transmission method for uplink has been constructed a kind of method of passing through signaling and broadcast scheduling control information of data channel transport multicast and multicast broadcast scheduling payload respectively; Can solve above-mentioned problem of sending the descending sub frame of identical group broadcasting broadcast business data burst, therefore realize multicast broadcast service in the same moment.

Multicast broadcast scheduling payload and multicast broadcast service scheduling control information separately transmit can comprise following process:

Centralized scheduler in scheduling process, produces the multicast broadcast scheduling payload and multicast is transferred the broadcast service dispatching control information;

The multicast broadcast service scheduling control information sends to the local scheduler in the multicast and broadcast zone through signaling; The multicast broadcast scheduling payload sends to the local scheduler in the multicast broadcast service zone through data channel;

Local scheduler receives multicast broadcast scheduling payload and the multicast broadcast service scheduling control information that centralized scheduler is sent.

Wherein centralized scheduler equally can be according to multicast broadcast service upper strata message, usable radio resources, multicast and broadcast quality of service characteristics parameter, the multicast and broadcast zone delay character of buffer memory, and physical layer characteristic parameters is dispatched.

Centralized scheduler can (data cell be relevant with the kind of payload here with the data cell of the multicast broadcast scheduling payload that produces in the scheduling process; Can above multicast broadcast service upper strata message; It also can be multicast broadcast service medium access control layer protocol data cell; Or multicast and broadcast MAC layer data burst; Or multicast and broadcast PHY layer data burst) adds that (the same with preceding method, the multicast broadcast scheduling payload can be the multicast broadcast service upper strata message of participating in scheduling to numbering, or participates in the multicast broadcast service medium access control layer protocol data cell of dispatch group multicast broadcasting service message conversion; Or through converted multicast and broadcast MAC layer data burst of a step, or through converted multicast and broadcast PHY layer data burst of a step);

The content that the multicast broadcast service scheduling control information that adopts this mode to send comprises is corresponding with the MBS Header of preceding method; The multicast broadcast scheduling payload is corresponding with MBS Payload; Difference is; Employing separates send mode, and no matter scheduling control information still is the information whether the multicast broadcast scheduling payload comprises a plurality of multicast and broadcast data bursts; Content that it comprises and processing mode all with preceding method in multicast and broadcast data channel protocol data cell comprise a plurality of multicast and broadcast data burst info class seemingly, that is:

No matter whether the multicast broadcast service scheduling control information contains a plurality of multicast and broadcast data burst phase related control informations, can indicate the Base Serial Number of data cell in the multicast broadcast scheduling payload that certain burst is relevant in the schedule information.If multicast broadcast scheduling payload data unit produces burst in the scheduling process, then also can include the burst information of data cell in the multicast broadcast scheduling payload.

No matter whether the multicast broadcast scheduling payload contains the relevant payload of a plurality of multicast and broadcast data bursts, can number the data cell of multicast and broadcast broadcast service dispatching payload.

After local scheduler is received multicast broadcast service scheduling control information and multicast broadcast scheduling payload, can be according to multicast broadcast service scheduling control information and corresponding multicast broadcast scheduling payload structure multicast and broadcast data burst.Construction process is relevant with the multicast broadcast scheduling payload type.If the multicast broadcast scheduling payload is MBS MAC SDU, then can construct burst of MBS MAC PDU and MBS MAC layer and the burst of MBS PHY layer; If the multicast broadcast scheduling payload is MBS MAC PDU, then construct burst of MBS MAC layer and the burst of MBS PHY layer; If the multicast broadcast scheduling payload is MBS MAC burst, then construct the burst of MBS PHY layer; If the multicast broadcast scheduling payload is MBS PHY burst, then need not structure; Formation rule can be from the multicast broadcast service scheduling control information.

After local scheduler has been constructed the multicast and broadcast data burst; Can send the burst of multicast and broadcast PHY layer data in the frame number and the position of appointment according to temporal information in the multicast broadcast service scheduling control information, wherein the frame number of multicast and broadcast PHY layer data burst mapping and the positional information in frame and physical layer parameter can be to be determined by the relevant parameter in the multicast broadcast service scheduling control information.

Local scheduler can be according to receiving multicast broadcast service scheduling control information structure multicast and broadcast map information unit and multicast and broadcast mapping message; And according to frame number transmission multicast and broadcast map information unit and the multicast and broadcast mapping message of temporal information in the multicast broadcast service scheduling control information in appointment, wherein positional information and the physical layer parameter of multicast and broadcast mapping message burst in frame determined by the relevant parameter in the multicast broadcast service scheduling control information.

In the method; Multicast broadcast service scheduling control information or multicast broadcast scheduling payload can comprise the data integrity verifying sign indicating number equally, and local scheduler can carry out data integrity verifying after receiving multicast broadcast service scheduling control information or multicast broadcast scheduling payload; If completeness check does not pass through, local scheduler can be initiated repeat requests or fault processing according to subscribing strategy.

In the method, can comprise length information equally in multicast broadcast service scheduling control information or the multicast broadcast scheduling payload.

In front in two kinds of methods; No matter adopting multicast and broadcast data channel protocol data cell to send scheduling result still adopts multicast broadcast service scheduling control information and multicast broadcast scheduling payload separately to send; Wherein the partial parameters in multicast and broadcast header or the multicast broadcast service scheduling control information does not change or seldom changes at a multicast broadcast service, then can send to local scheduler from centralized scheduler through signaling or the periodicity signaling that multicast broadcast service is set up in the process; When adopting this scheme, then concentrator also can send the information updating corresponding parameters immediately when certain parameter change.Also can adopt collocation method make centralized scheduler with or local scheduler obtain these and do not change or changes parameter seldom, when configuration parameter changes, centralized scheduler and or local scheduler can obtain the configuration parameter of these changes again.

Preferably, in above two kinds of methods, all support retransmission mechanism; In the method, to preceding a kind of method, support the re-transmission of centralized scheduler exactly to the multicast and broadcast data channel protocol data cell between the local scheduler; As far as a kind of method in back, support that retransmission mechanism is exactly to support centralized scheduler to multicast broadcast scheduling control information between the local scheduler and or multicast broadcast scheduling payload re-transmission.

In above two kinds of methods, all relate to the matter of time of scheduling result interface transmission aloft; Centralized scheduler can have following function:

Centralized scheduler can safeguard that local scheduler is to the time delay information of centralized scheduler in the multicast and broadcast zone; When time delay information changed, centralized dispatching can be upgraded local scheduler synchronously to the time delay between the centralized scheduler.

Centralized scheduler can determine multicast and broadcast zone time delay; Centralized scheduler can select maximum time delay as multicast and broadcast zone time delay according to the delay character of all local schedulers in the multicast and broadcast zone; Safeguard the renewal of multicast and broadcast zone time delay simultaneously; Centralized scheduler also can be according to the multicast broadcast service quality of service characteristics in addition; Select a time delay that satisfies the delay parameter of quality of service requirement as the multicast and broadcast zone, but this delay parameter can not be less than the maximum delay parameter of local scheduler in the multicast and broadcast zone.

Centralized scheduler can be filled in the temporal information of this scheduling relevant multicast and broadcast map information unit, multicast and broadcast mapping message, multicast broadcast scheduling payload or multicast and broadcast data burst interface transmission aloft according to multicast and broadcast zone time delay in scheduling result.The air interface transmitting time is not less than the current time and adds multicast broadcast service zone time delay.

Local scheduler can have following function:

When local scheduler was received the scheduling result that centralized scheduler sends over, its time was later than the transmitting time of filling in the scheduling result, and then local scheduler can determine whether the feedback time difference is given centralized scheduler according to strategy; These strategies can be whether the time difference is greater than a threshold value, the threshold value etc. of time of occurrence difference number of times continuously;

When local scheduler was received the scheduling result that centralized scheduler sends over, its time, then local scheduler determined according to strategy whether the feedback time difference is given centralized scheduler early than the transmitting time of filling in the scheduling result; These strategies can be whether the time difference is greater than a threshold value, the threshold value etc. of time of occurrence difference number of times continuously;

When calculating the delay character of local scheduler, can consider following factor: propagation delay, processing delay, forward scheduling time delay, retransmission delay time and time delay adjustment amount; When local scheduler feedback time difference information, the delay character of this local scheduler can be done corresponding renewal; When the local scheduler delay character upgraded, centralized scheduler can check that whether carrying out multicast and broadcast zone time delay upgrades.

Adopt following method centralized scheduler can gather the delay character of local scheduler:

Utilize the interactive information between centralized scheduler and the local scheduler; Transmit leg is stamped the delivery time label information; When the recipient receives information, then can calculate centralized scheduler to the delay character between the local scheduler according to the time and the time tag information in the information of the information of reception.Interactive information can be utilized existing signaling or message, or increases newly-increased signaling or message.

Machine-processed feedback time difference information below local scheduler can adopt:

Utilize existing signaling or message, or increase new signaling or message;

Centralized scheduler also can send to all local schedulers with scheduling result according to multicast and broadcast zone delay character simultaneously, and the less local scheduler of delay character can just can send through air interface the time that the scheduling result information cache is long like this;

Centralized scheduler also can send to all local schedulers in the different moment with scheduling result according to the delay character of multicast and broadcast zone delay character and local scheduler, guarantees that all local schedulers almost receive the scheduling result information that centralized scheduler sends in the identical moment; If the local scheduler delay character in the multicast and broadcast zone differs bigger, then centralized scheduler can just can send to all local schedulers to the long time of scheduling result information cache with scheduling result information.

The above embodiment of the present invention can realize supporting the multicast broadcast service of grand branch collection; Promptly in all base stations of MBS Zone scope in the same moment, adopt same transfer mechanism (adopting same subchannel, symbol, modulation coding mode, arrangement mode etc.) to transmit same multicast and broadcast mapping message, multicast and broadcast data burst.In addition, the present invention can carry out completeness check to the scheduling result information (for example multicast and broadcast data channel protocol data cell or multicast broadcast service scheduling control information, multicast broadcast scheduling payload) that local scheduler transmits to centralized scheduler.Simultaneously, through the present invention, the delay character of network side can upgrade according to the adjustment amount of local scheduler feedback; Centralized scheduler can disposablely send to local scheduler with scheduling result information, and the less local scheduler of time delay will be received the scheduling result information that centralized scheduler is sent in advance like this, can need the long time of buffer memory just can send through air interface.Centralized scheduler also can be sent scheduling result information respectively to local scheduler according to the delay character of each local scheduler and multicast and broadcast zone time delay, makes each local scheduler receive not need buffer memory or buffer memory to send through air interface after less time.Disposable transmission need consume the more buffer memory of the less local scheduler of time delay, and transmission needs to consume the more buffer memory of centralized scheduler respectively.

The Hong Fenji of MBS will guarantee in the MBS Zone scope each base station same constantly, identical frame position sends same content, this can be cooperated by two-layer scheduler realizes.At first, can in MBS Zone scope, exist a centralized scheduler to accomplish, and scheduling result is sent to the local scheduler of each base station in the MBS Zone the professional scheduling of multi-base station MBS; Secondly; There is a local scheduler in each base station in the MBS Zone; Local scheduler not only can be accomplished the scheduling of local service (MBS that comprises unicast service and single BS is professional); And can be with the multi-base station MBS service dispatching result who receives from centralized scheduler and local scheduling result combinations to together, send through air interface by the scheduling result of local scheduler after again combination.

That is to say; Realization multicast and broadcast zone macro diversity method according to the embodiment of the invention; May further comprise the steps: step 1; Centralized scheduler in the multicast broadcast service zone changes the multicast broadcast service message that receives into multicast and broadcast data channel protocol data cell and is sent to the local scheduler in the multicast broadcast service zone, and wherein, multicast and broadcast data channel protocol data cell comprises multicast and broadcast header and multicast broadcast scheduling payload; And step 2; Local scheduler is according to being configured to air interface multicast and broadcast data burst from the multicast broadcast scheduling payload in the multicast and broadcast data channel protocol data cell of centralized scheduler; And, send the multicast and broadcast data burst to portable terminal at particular frame sequence number/frame position/use physical layer parameter according to from the multicast and broadcast header information in the multicast and broadcast data channel protocol data cell of centralized scheduler.

As shown in Figure 3, centralized scheduler both can be positioned at Access Network gateway (ASN-GW), also can be positioned at the BS that certain is chosen, and also can be positioned at certain independently external entity, but local scheduler always was positioned at BS.

Wherein, centralized scheduler is accomplished following function:

1. receive the MBS message from other functional entity (for example, multicast router etc.), the MBS message that receives is placed buffer memory.

2. according to the BMS message data of the professional service quality of MBS (Quality of Service is called for short QoS) characteristic, buffer memory, physical layer parameter characteristic, available radio resources are dispatched; The MBS message of choosing in the scheduling process is as the payload of this scheduling, and calculating changes payload in descending sub frame, occupy after the physical layer bursts positional information.Alternatively, confirm the positional information of the MBS MAP message bursts that current scheduling is relevant; Optional, confirm the professional relevant schedule information next time of MBS of current scheduling, the positional information of promptly next MBS MAP message in frame.Also can the MBS upper strata message of participating in scheduling be configured to MBS MAC PDU, comprising MBS upper-layer protocol data cell (being MBS MAC SDU) is packed or burst; Also can continue the MBS MAC PDU of structure further is configured to MBS MAC Burst, comprising MBS MAC PDU is carried out cascade; Also can continue the MBS MAC Burst of structure further is configured to MBS PHY Burst, promptly to MBS MAC Burst carry out physical layer channel code to MBS PHY Burst.When structure multicast and broadcast data channel protocol data cell; Centralized scheduler can be selected the upper strata MBS message of this scheduling; Or the MBS MAC PDU of upper strata MBS message structure; Or the MBS PHY Burst of the MBS MAC Burst of MBS MAC PDU structure or MBS MAC Burst structure is called the multicast broadcast scheduling payload here as the payload of multicast and broadcast data channel protocol data cell.

3. confirm the absolute time of multicast broadcast scheduling payload interface transmission aloft.Alternatively, confirm MBS MAP IE that current scheduling is relevant and the MBS MAP message interface temporal information of sending aloft; Optional, confirm the professional relevant schedule information next time of MBS of current scheduling, promptly next MBS MAP message is the interface absolute time of sending aloft.

4. construct MBS Header.MBS Header can also comprise the synchronizing information of centralized scheduler to local scheduler except the length information that comprises multicast and broadcast data channel protocol data cell.Local scheduler in the base station is constructed the necessary field of MBS MAP IE and MBS MAP message with these synchronizing informations.

The information of wherein constructing MBS MAP IE can comprise: the physical layer characteristic parameters of multicast and broadcast area identification, multicast and broadcast mapping message burst position information, the burst of multicast and broadcast mapping message.Multicast and broadcast message bursts positional information can comprise: frame position information, the positional information in the frame; Wherein the positional information in the frame can comprise following part or all of parameter: symbol offset number, subchannel skew number, subchannel number, number of symbols; The physical layer characteristic parameters of multicast and broadcast message bursts comprises following part or all of parameter: alignment characteristics, DL PermBase, PRBS_ID, Boosting, forward error correction code type, and modulation type, code weight is counted again; Wherein error correcting code type and modulation type also can be called the downlink burst attribute, can describe with the downlink burst property value, also can use corresponding following between-line spacing to use sign indicating number to characterize.

The information of wherein constructing multicast and broadcast message can have: the multicast connection identifier of multicast and broadcast data with or the physical layer characteristic parameters of logical identifier, multicast and broadcast data burst; The positional information of multicast and broadcast data burst, next multicast and broadcast mapping message burst position information.The physical layer characteristic parameters of multicast and broadcast data burst comprises following parameter: alignment characteristics, Boosting, forward error correction code type, and modulation type, code weight is number, HARQ parameter again; Wherein error correcting code type and modulation type also can be called the downlink burst attribute, can describe with the downlink burst property value, also can use corresponding following between-line spacing to use sign indicating number to characterize; The positional information of multicast and broadcast data burst comprises parameter: frame position information, the positional information in the frame; And positional information can comprise following part or all of parameter in the frame: symbol offset number, subchannel skew number, subchannel number, number of symbols; Next multicast and broadcast mapping message burst position information comprises following parameter: frame position information, the positional information in the frame; And positional information can comprise following part or all of parameter in the frame: symbol offset number, subchannel skew number, subchannel number, number of symbols.

The type that comprises according to MBS Payload is different, can also comprise in the synchronizing information from the rule of MBS MAC SDU mapping MBS MAC PDU with or the MBS MAC PDU rule that is mapped to MBS MAC Burst with or MBS PHY Burst to the mapping ruler of descending sub frame position.

The temporal information that can also comprise the relevant MBS MAP IE/MBS MAP/MBS PHY Burst of this scheduling interface transmission aloft in the synchronizing information;

The content that does not dynamically change in the synchronizing information also can send local scheduler to from centralized scheduler in the professional process of setting up of MBS, and is not included in the synchronizing information among the MBS Header.These dynamically do not change content also can periodically pass through the message transmission, or when changing, sends through message.

Immovable content also can adopt collocation method to obtain by centralized scheduler and local scheduler in the synchronizing information; When configuration parameter changed, centralized scheduler and local scheduler can obtain again.

5. through top step, centralized scheduler changes multicast and broadcast data channel protocol data cell with scheduling result, comprising MBS Header and payload.

6. consideration data integrity can increase check code at the afterbody of multicast and broadcast data channel protocol data cell.

7. will organize good multicast and broadcast data channel protocol data cell and send to all local schedulers in the MBS Zone.When centralized scheduler sends to all local schedulers in the MBS Zone with multicast and broadcast data channel protocol data cell, can disposable whole transmissions perhaps send respectively according to the delay character of each local scheduler.

Produce the situation of a multicast and broadcast data burst in the above-mentioned just centralized scheduler scheduling process of mentioning.Also may produce a plurality of multicast and broadcast data bursts in the centralized scheduler scheduling process.When centralized scheduler scheduling produces the relevant information of a plurality of multicast and broadcast data bursts; Can be configured to a group broadcasting broadcast business data channel protocol data cell to each multicast and broadcast data burst relevant information sends to local scheduler to centralized scheduler on the one hand, and this process as stated; Centralized scheduler also can be placed on the relevant information of a plurality of multicast and broadcast data bursts in the multicast and broadcast data channel protocol data cell and send.

When multicast and broadcast data channel protocol data cell is sent a plurality of multicast and broadcast data burst, then respectively MBS Header in the multicast and broadcast data channel protocol data cell and MBS Payload there is following requirement.

Multicast and broadcast header (MBS Header) can contain a plurality of instances in multicast and broadcast data message unit in the MBS MAP message (being MBS DATA IE, Extended MBS DATA IE, MBS DATA Time Diversity IE); Each instance is except all containing following information: the multicast connection identifier of multicast and broadcast data with or the physical layer characteristic parameters of logical identifier, multicast and broadcast data burst; The positional information of multicast and broadcast data burst, next multicast and broadcast mapping message burst position information; In addition, each instance can also contain the index information of the corresponding multicast and broadcast data burst of this instance in the multicast and broadcast payload, promptly indicates which part in the corresponding multicast broadcast scheduling payload of this instance.Wherein index information possibly comprise burst information.

The multicast broadcast scheduling payload still can be (promptly to participate in the multicast and broadcast upper strata message of this scheduling in aforementioned four kinds of forms; Or the multicast and broadcast medium that this message is further constructed are got involved the key-course protocol Data Unit; Or the further multicast and broadcast MAC layer data burst of structure, or the further multicast and broadcast PHY layer data burst of structure) any; But can add numbering therein, different according to payload type, numbered cell is also different; If the multicast broadcast scheduling payload is a multicast broadcast service upper strata message, then the upper-layer service message is numbered; If the multicast broadcast scheduling payload is a multicast and broadcast medium access control layer protocol data cell, then this protocol Data Unit is numbered; If the multicast broadcast scheduling payload is a multicast and broadcast MAC data burst, then multicast and broadcast MAC data burst is numbered; If, then can number if the multicast broadcast scheduling payload is a multicast and broadcast PHY data burst.

The above-mentioned method of mentioning is the scheduling payload that produces in the scheduling process and scheduling control information to be configured to multicast and broadcast data channel protocol data cell send; Centralized scheduler also can be sent scheduling control information through signaling, the scheduling payload sends through the general data passage; This method has following requirement to scheduling control information and scheduling payload:

Scheduling control information comprises the necessary field that is used for constructing relevant MBS MAP IE of this scheduling and MBS MAP message; No matter whether scheduling control information comprises the instance of a plurality of multicast and broadcast data messages unit in the MBS MAP message, can indicate the corresponding index information of multicast and broadcast data burst in the multicast broadcast scheduling payload of this instance; Possibly there is burst information in index information.

The multicast broadcast scheduling payload still can be (promptly to participate in the multicast and broadcast upper strata message of this scheduling in aforementioned four kinds of forms; Or the multicast and broadcast medium that this message is further constructed are got involved the key-course protocol Data Unit; Or the further multicast and broadcast MAC layer data burst of structure, or the further multicast and broadcast PHY data burst of structure) any; But can add numbering therein, different according to payload type, numbered cell is also different; If the multicast broadcast scheduling payload is a multicast broadcast service upper strata message, then the upper-layer service message is numbered; If the multicast broadcast scheduling payload is a multicast and broadcast medium access control layer protocol data cell, then this protocol Data Unit is numbered; If the multicast broadcast scheduling payload is the burst of multicast and broadcast MAC layer data, then burst is numbered to the MAC layer data; If the multicast broadcast scheduling payload is the burst of multicast and broadcast PHY layer data, then burst is numbered to the PHY layer data.

Fig. 4 is the input and output sketch map of centralized scheduler.

Centralized scheduler is output as multicast and broadcast data channel protocol data cell, comprises with the lower part:

1.MBS Header, it is essential part.

2.MBS payload (MBS Payload), it is essential part.The multicast broadcast scheduling payload can be to be exactly the MBS upper strata message that centralized scheduler is participated in this scheduling; Or the MBS MAC PDU of upper strata MBS message structure; Or the MBS MAC Burst of MBS MAC PDU structure, or the MBS PHY Burst of MBS MAC Burst structure.

3. check code, it is optional part.Check code can be used for carrying out the data integrity protection.Wherein, check code can be selected CRC (CRC) for use.

Wherein, MBS Header can comprise the part or all of field in the following field:

1. length.Here refer to the length of centralized scheduler to the multicast and broadcast data channel protocol data cell of local scheduler.

2. local scheduler is used for constructing the necessary field of MBS MAP IE and MBS MAP message.

Wherein, centralized scheduler confirms that payload or this time method of dispatching relevant MBS MAP IE and the interface transmission aloft of MBS MAP message that this scheduling is relevant can be following:

1.MBS each local scheduler (being positioned on the base station) in the Zone reports centralized scheduler to the time delay between the local scheduler to centralized scheduler; Wherein time delay comprises propagation delay time+processing delay at least; If consider to retransmit, the time delay considered retransmission delay time that then reports, retransmission delay time with each retransmit passable time relevant with the number of times that allows re-transmission.In addition, the time delay that reports it is also conceivable that and add the time delay adjustment amount that the time of the professional forward scheduling of MBS can count in the time delay adjustment amount.

2. centralized scheduler writes down all time delays that report from local scheduler, and therefrom chooses the time delay of maximum delay as network side; Centralized scheduler can increase the time delay of a time delay adjustment amount as network side on the maximum delay basis of selecting, the time of the professional forward scheduling of MBS can count in the time delay adjustment amount.In addition, centralized scheduler can be upgraded the time delay of this local scheduler and the time delay of network side according to the time delay adjustment amount of follow-up local scheduler feedback.

3. centralized scheduler is in when scheduling, confirm each multicast and broadcast data message unit in the MBS MAP message instance corresponding multicast broadcast scheduling payload aloft the interface absolute time of sending be the time delay that current absolute time adds network side; The absolute time that centralized scheduler is sent air interface, or be converted into frame number or frame number skew and fill among the MBS Header.

4. centralized scheduler scheduling next MBS MAP message interface absolute time of sending aloft of confirming the correspondence of each multicast and broadcast data message unit instance in MBS MAP message that this scheduling is relevant and the MBS MAP message simultaneously, or be converted into frame number or vertical shift and fill among the MBS Header.

Wherein, confirm that the method for the physical layer bursts position that the corresponding payload of each multicast and broadcast data message unit instance in the MBS MAP message occupies can be following:

1. calculate according to the professional PHY characterisitic parameter of current MBS (comprising downlink modulation coding mode, the code weight alignment characteristics etc. of number, HARQ parameter, subchannel subcarrier again).

2. calculate according to MBS burst usable radio resources in descending sub frame.

3. calculate according to the professional QoS characteristic of current MBS.

Wherein, confirming in current MBS MAP message bursts and the MBS MAP message that the corresponding message bursts of multicast and broadcast next time of each multicast and broadcast data message unit instance occupies the method for physical layer bursts position can be following:

1. calculate according to the burst PHY characterisitic parameter of MBS MAP message (comprising downlink modulation coding mode, the code weight alignment characteristics etc. of number, HARQ parameter, subchannel subcarrier again).

2. calculate according to MBS MAP message bursts usable radio resources in descending sub frame.

In the MBS business, select for use modulation coding mode and coding number of repetition on the one hand can consider coverage, can consider the QoS of survice characteristic on the other hand, the error ratio characteristic that particularly should business allows.

If describe the professional modulation coding mode of MBS with MBS DIUC, promptly the professional burst characteristic of MBS has multiple mode can realize that local scheduler obtains MBS DIUC and corresponding burst characteristic is described.Method 1: MBS DIUC value that the network manager configuration is different and corresponding burst characteristic thereof, and cycle synchronisation sends to the local scheduler in centralized scheduler and the MBS Zone scope; If change, then can be synchronous immediately.Method 2: centralized scheduler is periodically sent MBS DIUC and corresponding burst characteristic description thereof to local scheduler.If change, can be synchronous immediately.Method 3: set up in the process in the MBS business, centralized scheduler sends to local scheduler with MBS DIUC and corresponding burst characteristic description thereof.

If it is professional to certain concrete MBS; This business its MBS DIUC value in the process of carrying out does not allow to change; Then set up in the process in the MBS business, centralized scheduler is the professional MBS DIUC that adopts of this MBS or directly bring local scheduler with the burst characteristic description.If this MBS business can dynamically change the value of MBS DIUC, then can in the control information (for example MBS Header) of scheduling, comprise MBS DIUC.

Wherein, The MBS Permutation ID that the MBS business adopts in descending sub frame; Show the subchannel that the professional corresponding burst of this MBS is adopted and the arrangement mode of subcarrier in descending sub frame, the MBS business is generally selected for use the mode of whole subchannels multiplexing (FUSC) or comprised the mode of the parton channel multiplexing (PUSC) of whole subchannels.

There is multiple mode can realize that local scheduler obtains MBS Permutation ID and description thereof.Method 1: can in network manager, be configured, and cycle synchronisation sends to the local scheduler in centralized scheduler and the MBS Zone scope; If change, then can be synchronous immediately.Method 2: centralized scheduler is periodically broadcasted to local scheduler.If change, can be synchronous immediately.Method 3: set up in the process in the MBS business, centralized scheduler sends to local scheduler with professional MBS Permutation ID and the description of adopting thereof of this MBS.

If it is professional to certain concrete MBS; This business its MBS Permutation ID in the process of carrying out does not allow to change; Then set up in the process in the MBS business, centralized scheduler is the professional MBS Permutation ID that adopts of this MBS or directly bring local scheduler with the alignment characteristics description.If this MBS business can dynamically change its alignment characteristics, then can in scheduling control information (for example MBS Header), comprise alignment characteristics value MBS Permutation ID.

Centralized scheduler is after accomplishing scheduling; Can scheduling result information (be comprised and participate in this scheduling moral multicast broadcast scheduling payload and multicast broadcast service scheduling control information thereof; No matter adopt multicast and broadcast data channel protocol data cell form; Still the mode that adopts control information and scheduling payload separately to send) send to all local schedulers in the MBS Zone scope, centralized scheduler can disposablely be sent all local schedulers with scheduling result and perhaps sent respectively according to the delay character of each local scheduler.

Disposable transmission is exactly that centralized scheduler satisfies the maximum passable delivery time of local scheduler of time delay; Send to all local schedulers to scheduling result information, the less local scheduler of time delay receives after the scheduling result information after can the buffer memory long time that interface sends aloft like this.Send respectively is exactly that centralized scheduler is sent earlier to the big local scheduler of time delay earlier; The local scheduler that backward delay is little sends; Promptly make all local schedulers almost receive the scheduling result information that centralized scheduler sends over, thereby reduce requirement the less local scheduler buffer memory of time delay in the identical moment.

Local scheduler in the base station, can accomplish following function:

1. receive multicast and broadcast data channel protocol data cell from centralized scheduler; If the network side scheduling result comprises completeness check, then carry out completeness check earlier.If pass through completeness check; According to structure MBS MAP IE of the synchronizing information among the MBS Header and MBS MAP message, the physical layer parameter according to the temporal information in the synchronizing information, MBS MAP message bursts positional information, MBS MAP message bursts sends MBS MAP message through air interface simultaneously on the one hand; To be configured for the multicast and broadcast physical layer data burst of air interface on the other hand from the payload of centralized scheduler again according to the synchronizing information among the MBS Header; Absolute time of sending according to the air interface in the synchronizing information among the MBS Header at last and physical layer characteristic parameters are mapped to the specific region of the descending sub frame of particular frame sequence number with the multicast and broadcast physical layer bursts of structure, send through air interface.During according to structure MBS MAPIE of the synchronizing information among the MBS Header and MBS MAP message, the value of some field can directly be used, and the value of some field can transform; During such as the current scheduling information of certain instance of the information element MBS DATA IE in the local scheduler structure MBS MAP message, the value of vertical shift field is wherein constructed according to MBS Header time information corresponding or frame number and current information of time or frame number; Equally when corresponding next schedule information (the being next MBS MAP message) relevant field of certain instance of structure, the value of vertical shift field wherein is to construct according to MBS Header time information corresponding or frame number and current information of time or frame number.

2., then can whether initiate repeat requests or carry out fault processing according to strategy decision in advance if not through completeness check.Wherein, fault processing comprises the MBS service dispatching result who abandons the many BS that receive from centralized scheduler.

3. when local scheduler carries out local scheduling, (comprise professional scheduling), to the professional scheduling result of the MBS of many BS, can improve the Radio Resource utilization ratio in conjunction with the centralized scheduler of receiving to the MBS of clean culture and single BS.Because centralized scheduler is to the professional scheduling of the MBS of many BS forward scheduling always, thus local scheduler when carrying out local scheduling, the Radio Resource that is not taken by the MBS business of many BS can be used for carrying out local scheduling.

4. local scheduler is constructed the DL MAP IE and corresponding burst of whole descending sub frame according to the scheduling result of centralized scheduler and the scheduling result of local scheduler, and whole descending sub frame is sent through air interface.

5. centralized scheduler is to the time delay adjustment function of local scheduler.This adjustment function comprises; If local scheduler receives that from centralized scheduler the moment of multicast broadcast service scheduling result is later than the delivery time of air interface; Then local scheduler calculates this time difference, and whether decision can report centralized scheduler with this time difference to local scheduler according to strategy simultaneously.If local scheduler is received the delivery time of the moment of multicast broadcast service scheduling result early than air interface, then local scheduler calculates this time difference and determines whether this difference is reported centralized scheduler according to strategy.These strategies comprise the threshold value of time difference and the threshold value of continuous time of occurrence difference number of times.

The data transmission method for uplink that is used for multicast broadcast service of the above embodiment of the present invention is particularly useful for Wimax (Worldwide Interoperability for Microwave Access, micro-wave access to global intercommunication) system.

The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.

Claims

1. a data transmission method for uplink that is used for multicast broadcast service is characterized in that, may further comprise the steps:

Centralized scheduler in the multicast and broadcast zone produces multicast broadcast scheduling payload and multicast broadcast scheduling control information through scheduling;

Said centralized scheduler sends to the local scheduler in the said multicast and broadcast zone with said multicast broadcast scheduling control information through signaling; Wherein, Said centralized scheduler is provided with temporal information in said multicast broadcast scheduling control information, it is used to indicate the time of said local scheduler interface transmission aloft multicast and broadcast data burst;

Said centralized scheduler sends to said local scheduler with said multicast broadcast scheduling payload through data channel.

2. data transmission method for uplink according to claim 1 is characterized in that, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises:

Said centralized scheduler will be used for constructing multicast and broadcast map information unit with or be used to construct the said multicast broadcast scheduling control information of information architecture of the multicast and broadcast data message unit of multicast and broadcast mapping message.

3. data transmission method for uplink according to claim 2 is characterized in that, also comprises:

Said local scheduler is according to the indication structure multicast and broadcast map information unit and or the multicast and broadcast mapping message of said multicast broadcast scheduling control information.

4. data transmission method for uplink according to claim 2 is characterized in that, the said information that is used to construct multicast and broadcast map information unit comprises following part or all of parameter:

The physical layer characteristic parameters of the burst of the sign in said multicast and broadcast zone, the burst position information of said multicast and broadcast mapping message, said multicast and broadcast mapping message.

5. data transmission method for uplink according to claim 4 is characterized in that, the burst position information of said multicast and broadcast mapping message comprises following part or all of parameter:

Positional information in frame position information, the frame; Wherein the positional information in the frame comprises following part or all of parameter: symbol offset number, subchannel offset number, subchannel number, number of symbols.

6. data transmission method for uplink according to claim 4 is characterized in that, the physical layer characteristic parameters of the burst of said multicast and broadcast mapping message comprises following part or all of parameter:

Alignment characteristics, DL PermBase, PRBS_ID, Boosting, forward error correction code type, modulation type, code weight are counted again; Wherein said forward error correction code type and modulation type are described with the downlink burst property value or are used sign indicating number to characterize with corresponding following between-line spacing.

7. data transmission method for uplink according to claim 2 is characterized in that, the information that is used for constructing each multicast and broadcast data message unit of multicast and broadcast mapping message comprises following part or all of parameter:

The multicast connection identifier of a multicast and broadcast data burst with or logical identifier, the physical layer characteristic parameters of a multicast and broadcast data burst, the positional information of a multicast and broadcast data burst, the burst position information of next said multicast and broadcast mapping message.

8. data transmission method for uplink according to claim 7 is characterized in that, the physical layer characteristic parameters of said multicast and broadcast data burst comprises following part or all of parameter:

Alignment characteristics, Boosting, forward error correction code type, modulation type, code weight be number, HARQ parameter again; Wherein said forward error correction code type and modulation type are described with the downlink burst property value or are used sign indicating number to characterize with corresponding following between-line spacing.

9. data transmission method for uplink according to claim 7 is characterized in that, the positional information of said multicast and broadcast data burst comprises following part or all of parameter:

Positional information in frame position information, the frame; The position packets of information is drawn together following part or all of parameter in the said frame: symbol offset number, subchannel offset number, subchannel number, number of symbols.

10. data transmission method for uplink according to claim 7 is characterized in that, the burst position information of said next multicast and broadcast mapping message comprises following part or all of parameter:

11. data transmission method for uplink according to claim 1 is characterized in that, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and also comprises:

Said centralized scheduler is with the mapping ruler of the multicast and broadcast message that receives to multicast broadcast service medium access control layer protocol data cell; With or multicast broadcast service medium access control layer protocol data cell to the mapping ruler of the burst of multicast and broadcast data M AC layer and or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame be set in the said multicast broadcast scheduling control information;

Said mapping ruler comprises partly or entirely following: mapping order, packing, burst, cascade.

12. data transmission method for uplink according to claim 1 is characterized in that, said centralized scheduler is according to the part of following information and all dispatch:

Delay character in the characterisitic parameter of the quality of service characteristics parameter of buffer memory multicast and broadcast message, multicast broadcast service, available radio resources, physical layer, the said multicast and broadcast zone.

13. data transmission method for uplink according to claim 1 is characterized in that,

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: said centralized scheduler is built into said multicast broadcast scheduling payload with the multicast and broadcast message that receives; And number for the multicast and broadcast message in the multicast and broadcast payload;

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: in said multicast broadcast scheduling control information, be provided with said multicast and broadcast message to the mapping ruler of multicast broadcast service medium access control layer protocol data cell with or said multicast broadcast service medium access control layer protocol data cell to the mapping ruler of multicast and broadcast data M AC layer burst with or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame;

Said multicast broadcast scheduling control information also comprises the multicast and broadcast message numbering scope that the multicast and broadcast data burst comprises.

14. data transmission method for uplink according to claim 13 is characterized in that, also comprises:

Said local scheduler is configured to the burst of multicast and broadcast data M AC layer according to the mapping ruler in the said multicast broadcast scheduling control information with the multicast broadcast scheduling payload;

Said local scheduler is encoded to the burst of multicast and broadcast data PHY layer according to multicast and broadcast data burst physical layer characteristic parameters in the multicast broadcast scheduling control information with multicast and broadcast data M AC layer Burst Channel;

Said local scheduler is according to multicast and broadcast burst position information in the multicast broadcast scheduling control information and the multicast broadcast scheduling payload interface temporal information of sending aloft, said multicast and broadcast data PHY layer burst is mapped to corresponding zone in the descending sub frame of corresponding frame number.

15. data transmission method for uplink according to claim 14 is characterized in that,

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises:

Said centralized scheduler comprises in the multicast and broadcast control information: the Base Serial Number of the multicast and broadcast message of each multicast and broadcast burst and the part or all of information that is used for constructing the multicast and broadcast mapping message multicast and broadcast data message unit corresponding with a plurality of multicast and broadcast data bursts;

Said data transmission method for uplink also comprises: said local scheduler is constructed a plurality of multicast and broadcast data M AC layer burst according to the information in the said multicast broadcast scheduling control information with said multicast broadcast scheduling payload; And after the physical layer process chnnel coding, change multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer, and said multicast and broadcast data PHY layer burst be mapped to corresponding zone in the descending sub frame of corresponding frame number.

16. data transmission method for uplink according to claim 1 is characterized in that,

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: said centralized scheduler converts the multicast and broadcast message that receives to multicast and broadcast medium access control layer protocol data cell, is built into said multicast broadcast scheduling payload then; And the multicast and broadcast medium access control layer protocol data cell in the multicast and broadcast numbered;

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: in said multicast broadcast scheduling control information, comprise said multicast broadcast service medium access control layer protocol data cell to the mapping ruler of multicast and broadcast data M AC layer burst with or the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame;

Said multicast broadcast scheduling control information also comprises the payload scope that the multicast and broadcast data burst comprises.

17. data transmission method for uplink according to claim 16 is characterized in that, also comprises:

Said local scheduler is configured to the burst of multicast and broadcast data M AC layer according to the mapping ruler in the said multicast broadcast scheduling control information with said multicast broadcast scheduling payload;

Said local scheduler according to multicast and broadcast burst position information in the said multicast broadcast scheduling control information with or the multicast broadcast scheduling control information in the multicast broadcast scheduling payload interface temporal information of sending aloft, said multicast and broadcast data PHY layer burst is mapped to corresponding zone in the descending sub frame of corresponding frame number.

18. data transmission method for uplink according to claim 17 is characterized in that,

Said centralized scheduler comprises in the multicast and broadcast control information: the Base Serial Number of the multicast and broadcast medium access control layer protocol data cell of each multicast and broadcast burst and be used for constructing the part or all of information in the multicast and broadcast mapping message multicast and broadcast data message unit corresponding with a plurality of multicast and broadcast data bursts;

Said data transmission method for uplink also comprises: said local scheduler is constructed a plurality of multicast and broadcast data M AC layer burst according to the information in the said multicast broadcast scheduling control information with said multicast broadcast scheduling payload; And behind physical layer channel code, change multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer, and said multicast and broadcast data PHY layer burst be mapped to corresponding zone in the descending sub frame of corresponding frame number.

19. data transmission method for uplink according to claim 1 is characterized in that,

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: said centralized scheduler converts the multicast and broadcast message that receives the burst of to multicast and broadcast data M AC layer, is built into said multicast broadcast scheduling payload then;

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises: the mapping ruler of multicast and broadcast data PHY layer burst in descending sub frame is set in said multicast broadcast scheduling control information.

20. data transmission method for uplink according to claim 19 is characterized in that, also comprises:

Said local scheduler according to the positional information of multicast and broadcast data burst in the said multicast broadcast scheduling control information with or the multicast broadcast scheduling control information in the multicast broadcast scheduling payload interface temporal information of sending aloft, said multicast and broadcast PHY layer burst is mapped to corresponding zone in the descending sub frame of corresponding frame number.

21. data transmission method for uplink according to claim 20 is characterized in that, said multicast broadcast scheduling payload comprises a plurality of said multicast and broadcast data M AC layer burst; Said multicast and broadcast control information also comprises: the part or all of information in the said multicast and broadcast mapping message in the multicast and broadcast data message unit corresponding with said a plurality of multicast and broadcast data bursts;

Said data transmission method for uplink also comprises: said local scheduler changes multicast and broadcast data M AC layer burst the burst of into multicast and broadcast data PHY layer according to the information in the said multicast broadcast scheduling control information behind physical layer channel code, and said multicast and broadcast data PHY layer burst is mapped to corresponding zone in the descending sub frame of corresponding frame number.

22. data transmission method for uplink according to claim 1 is characterized in that,

Centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling payload through scheduling and specifically comprises: said centralized scheduler becomes the burst of multicast broadcast data MAC layer with the multicast and broadcast message that receives through medium Access Layer treatment conversion; Form the multicast and broadcast data PHY layer burst of physical layer then through physical layer channel code, said then multicast and broadcast data PHY layer burst is built into said multicast broadcast scheduling payload;

23. data transmission method for uplink according to claim 22 is characterized in that, also comprises:

Said local scheduler is mapped to said multicast and broadcast data PHY layer burst in the zone of the correspondence in the descending sub frame in the corresponding frame number according to the temporal information of the interface transmission aloft of structure multicast and broadcast burst position information and multicast broadcast scheduling payload in the said multicast broadcast scheduling control information.

24. data transmission method for uplink according to claim 23 is characterized in that, said multicast broadcast scheduling payload comprises a plurality of said multicast and broadcast data PHY layer burst; Said multicast and broadcast control information also comprises: the part or all of information in the multicast and broadcast mapping message in the multicast and broadcast data message unit corresponding with said a plurality of said multicast and broadcast data PHY layers burst;

Said data transmission method for uplink also comprises: said local scheduler is mapped to said multicast and broadcast data PHY layer burst in the zone of the correspondence in the descending sub frame in the corresponding frame number according to the temporal information of the interface transmission aloft of structure multicast and broadcast burst position information and multicast broadcast scheduling payload in the said multicast broadcast scheduling control information.

25. data transmission method for uplink according to claim 1 is characterized in that, said multicast broadcast scheduling control information with or the multicast broadcast scheduling payload also comprise length information.

26. data transmission method for uplink according to claim 1; It is characterized in that; Said multicast broadcast scheduling control information with or the multicast broadcast scheduling payload also comprise check code; Said check code is to said multicast broadcast scheduling control information or/and the verification of said multicast broadcast scheduling payload, and said data transmission method for uplink also comprises:

Said local scheduler also according to said check code to said multicast broadcast scheduling control information with or said multicast broadcast scheduling payload carry out completeness check.

27. data transmission method for uplink according to claim 26 is characterized in that, also comprises:

If said multicast broadcast scheduling control information with or the multicast broadcast scheduling payload through completeness check, then said local scheduler is initiated repeat requests or is carried out fault processing.

28. data transmission method for uplink according to claim 27 is characterized in that, also comprises:

Said centralized scheduler with said multicast broadcast scheduling control information with or the multicast broadcast scheduling payload respectively through said signaling with or said data channel be sent to the local scheduler in the said multicast broadcast service zone once more.

29. data transmission method for uplink according to claim 1 is characterized in that, said centralized scheduler comprises said multicast broadcast scheduling control information through the local scheduling implement body that signaling sends in the said multicast and broadcast zone:

The message that said centralized scheduler adopts periodic messages or multicast broadcast service to set up in the process is delivered to said local scheduler with the part or all of information in the said multicast broadcast scheduling control information.

30. data transmission method for uplink according to claim 29 is characterized in that, also comprises:

When the information of transmitting when changing, said centralized scheduler notifies said local scheduler said change.

31. data transmission method for uplink according to claim 1 is characterized in that,

Centralized scheduler with or local scheduler obtain the part or all of information in the multicast broadcast scheduling control information through configuration.

32. data transmission method for uplink according to claim 31 is characterized in that, also comprises:

When information configured when changing, said centralized scheduler with or local scheduler to obtain the configuration information of change again.

33., it is characterized in that said centralized scheduler is arranged in Access Network gateway or the base station or the separate server in said multicast and broadcast zone according to each described data transmission method for uplink of claim 1 to 32.

34., it is characterized in that each realizes that there is a said centralized scheduler in the said multicast and broadcast zone of grand branch collection according to each described data transmission method for uplink of claim 1 to 32; Said local scheduler is arranged in each base station in said multicast and broadcast zone.

35. data transmission method for uplink according to claim 2 is characterized in that, the centralized scheduler in the multicast and broadcast zone produces the multicast broadcast scheduling control information through scheduling and specifically comprises:

Said centralized scheduler is provided with said temporal information in said multicast broadcast scheduling control information; Its also be used to indicate said local scheduler aloft interface send said multicast and broadcast map information unit time and or time of multicast and broadcast mapping message burst;

Said data transmission method for uplink also comprises:

Said local scheduler is according to the composition of content multicast and broadcast map information unit of said multicast broadcast scheduling control information; And said local scheduler sends said multicast and broadcast map information unit in the temporal information of the indicated multicast and broadcast map information unit interface transmission aloft of said multicast broadcast scheduling control information through air interface;

Said local scheduler is according to the composition of content multicast and broadcast mapping message of said multicast broadcast scheduling control information; And the temporal information of the multicast and broadcast mapping message of said local scheduler in said multicast broadcast scheduling control information interface transmission is aloft sent said multicast and broadcast mapping message through air interface.

36. data transmission method for uplink according to claim 35 is characterized in that,

Said centralized scheduler is provided with temporal information and specifically comprises in said multicast broadcast scheduling control information:

Said centralized scheduler is gathered oneself to the time delay between each said local scheduler;

Said centralized scheduler is confirmed the maximum delay of Yanzhong when said;

Said centralized scheduler is provided with said temporal information according to said maximum delay.

37. data transmission method for uplink according to claim 36; It is characterized in that said centralized scheduler collection oneself specifically comprises below the collection part or all of to the time delay between each said local scheduler: the time of propagation delay time, processing delay, retransmission delay time, multicast broadcast service forward scheduling.

38. data transmission method for uplink according to claim 36 is characterized in that, said centralized scheduler collection oneself specifically comprises to the time delay between each said local scheduler:

When said centralized scheduler or said local scheduler send message or message, in message or message, stamp the time tag information when sending message;

When said centralized scheduler collection or said local scheduler are received message or message, utilize said time tag information to calculate said time delay.

39. data transmission method for uplink according to claim 36 is characterized in that, said centralized scheduler collection oneself specifically comprises to the time delay between each said local scheduler:

When collecting said time delay when changing, said centralized scheduler is upgraded said time delay.

40., it is characterized in that said centralized scheduler confirms that the maximum delay of Yanzhong specifically comprises when said: said centralized scheduler is according to the renewal of said time delay, to determine whether to upgrade said maximum delay according to the described data transmission method for uplink of claim 39.

41. according to the described data transmission method for uplink of claim 39, it is characterized in that, collect said time delay change and specifically comprise:

When said local scheduler receive said multicast broadcast scheduling control information with or time of multicast broadcast scheduling payload early than or when being later than indicated moment of said temporal information, said local scheduler decision whether to said centralized scheduler report its receive said multicast broadcast scheduling control information and or time of multicast broadcast scheduling payload and said multicast broadcast scheduling control information and or multicast broadcast scheduling payload relevant information aloft interface send the time difference between the absolute time.

42. according to the described data transmission method for uplink of claim 41; It is characterized in that, said local scheduler according to the part or all of decision in the following strategy whether to said centralized scheduler report its receive said multicast broadcast scheduling control information and or time of multicast broadcast scheduling payload and said multicast broadcast scheduling control information and or multicast broadcast scheduling payload relevant information aloft interface send the time difference between the absolute time: the time difference greater than preset threshold value or/and continuously time of occurrence deviation number of times greater than preset threshold value.

43. data transmission method for uplink according to claim 36 is characterized in that, said centralized scheduler is provided with said temporal information according to said maximum delay and specifically comprises:

Said centralized scheduler with said maximum delay calculate said multicast and broadcast map information unit with or the multicast and broadcast mapping message with or multicast and broadcast the data burst moment or the frame number that should send in said air interface.

44. data transmission method for uplink according to claim 36 is characterized in that, said centralized scheduler confirms that the maximum delay of Yanzhong specifically comprises when said:

Said centralized scheduler is provided with said maximum delay according to QoS parameter, and said maximum delay is the maximum time delay in Yanzhong when said.

45. data transmission method for uplink according to claim 36 is characterized in that, according to the time delay of each said local scheduler respectively to each said local scheduler send said multicast broadcast scheduling control information with or the multicast broadcast scheduling payload specifically comprise:

Said centralized scheduler is calculated the time delay that the indicated moment of said temporal information deducts each said local scheduler, obtains each delivery time;

Said centralized scheduler is sent said multicast broadcast scheduling control information and or multicast broadcast scheduling payload at each delivery time with each said local scheduler of forward direction respectively.