CN101729983B - Method for indicating multicast broadcast scheduling information and device thereof - Google Patents
Method for indicating multicast broadcast scheduling information and device thereof Download PDFInfo
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Abstract
The invention discloses a method for indicating multicast broadcast scheduling information and a device thereof. The indicating method has the following steps that: the position information of the nearest MBS MAP for indicating the scheduling information which contains each multicast broadcast connection identifier MCID is set in the current multicast broadcast service mapping message MBS MAP; and a terminal receives MBS corresponding to the terminal according to the MCID scheduling information contained in the current MBS MAP. Through the method and the device, the terminal can acquire the required scheduling information of the multicast connection identifier without needing frame-by-frame demodulation.
Description
Technical field
The present invention relates to the communications field, in particular to method for indicating multicast broadcast scheduling information and device.
Background technology
According to 802.16 standards; Each descending (Downlink; Abbreviate DL as) can include descending map information unit (DL MAPIE) in the descending mapping message (DL MAP) of subframe; DL MAP IE is used for indicating MBS MAP (MBS (Multicastand Broadcast Service, the multicast broadcast service) mapping message) position of this subframe.
For many base stations (Base Station; Abbreviate BS as) MBS professional; MBS MAP message can include three types DATA IE (data message unit); Be MBSDATA IE (MBS data message unit), MBS DATA Time Diversity IE (the MBS data time divides the collection information unit) and Extended MBS DATA IE (expansion MBS data message unit).As shown in Figure 1; Not only pointed out the schedule information of the MCID that it comprises among every kind of DATA IE; I.e. this MCID (Multicast Connection Identifier; The multicast link identification) positional information of MBS PHY Burst (MBS physical burst) in descending sub frame that the MBS program that carries is corresponding also pointed out to comprise the positional information of the next MBS MAP of MCID schedule information.
According to above-mentioned mechanism, professional to the MBS of many BS, can receive the MBS program that identical MCID carries according to the cascaded message among the DATA IE in the MBS MAP message continuously; But; MBS MAP message only indicates the corresponding next one of MCID that contains schedule information in this MBS MAP message to contain the position of the MBSMAP message of this MCID schedule information, does not comprise the positional information that said MBS MAP message does not contain the corresponding MBS MAP message that contains its schedule information of the MCID of schedule information.
Therefore; As subscriber equipment (User Equipment; Abbreviate UE as) receive the MBS business from current MCID and switch to new MCID and receive other MBS contents, if comprise the schedule information that DATA IE in the MBS MAP message of current MCID schedule information does not comprise new MCID, then UE does not know to comprise the position of the MBS MAP message that the schedule information of this new MCID belongs to; So, UE need separate by subframe and transfer to find the MBS MAP message that comprises this new MCID schedule information.
Said process can following steps be realized:
One, UE is by the subframe demodulation; At first judge among the DL MAP of current subframe whether MBS MAP IE is arranged; If include MBS MAP IE; Then continue demodulation and obtain MBS MAP message, resolve MBS MAP message content then and obtain DATA IE, and judge whether the MCID among the DATA IE that this message comprises is needed new MCID to the position of MBS MAP IE indication;
If judge it is needed new MCID in two step 1, then UE finishes by the subframe demodulating process, continues to utilize the mechanism MBS program that this new MCID of constant reception carries on this new MCID of protocol description;
If judge it is not needed new MCID in three step 1, UE continues by the subframe demodulation, and the MCID that in finding DATA IE, comprises is the MBS MAP message of needed new MCID.
In realizing process of the present invention; When the inventor finds that the MBS that exists following problem: UE to switch to new its carrying of MCID reception in the prior art at least is professional; Need by the position of subframe demodulation with the DATA IE place MBS MAP subframe of confirming to comprise this new MCID, this process has increased the power consumption of UE.
Summary of the invention
The present invention aims to provide method for indicating multicast broadcast scheduling information and device, when switching to the MBS business of new its carrying of MCID reception to solve portable terminal, needs obtain by the subframe demodulation schedule information problem of required MCID.
According to an aspect of the present invention, a kind of method for indicating multicast broadcast scheduling information is provided.
Method for indicating multicast broadcast scheduling information according to the present invention comprises: the positional information of MBSMAP that in current MBSMAP, is provided for indicating the arest neighbors of the schedule information that contains each MCID; The terminal receives its corresponding MBS according to the schedule information of the MCID that comprises among the current MBS MAP.
Preferably; Need switch to new multicast and broadcast chains under the situation that receives MBS at the terminal; If current MBS MAP does not contain the schedule information of new MCID; This method also comprises: the terminal is according to the positional information of the MBS MAP of the schedule information of the new MCID that comprises among the current MBS MAP, and directly demodulation MBS MAP obtains the schedule information of new MCID to the position, to receive new MBS.
Preferably, positional information comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
According to a further aspect in the invention, a kind of method for indicating multicast broadcast scheduling information also is provided.
Method for indicating multicast broadcast scheduling information according to the present invention comprises: the positional information that in current MBS MAP, is provided for indicating adjacent MBS MAP; The schedule information of the MCID that carry through current MBS MAP at the terminal receives the MBS of its carrying.
Preferably; Need switch to new multicast and broadcast chains under the situation that receives new MBS at the terminal; If current MBS MAP does not contain the schedule information of new MCID; This method also comprises: the MBS MAP that terminal demodulates is adjacent, and up to the MBS MAP of the schedule information of finding to contain new MCID, to receive new MBS.
Preferably, positional information comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
According to a further aspect in the invention, a kind of multicast broadcast scheduling information indicating device also is provided.
Multicast broadcast scheduling information indicating device according to the present invention comprises: module is set, is used for being provided for indicating at current MBS MAP the positional information of MBS MAP of the arest neighbors of the schedule information that contains each MCID; Position determination module; Be used under the situation that switches to the new MBS of new MCID reception; If current MBS MAP does not contain the schedule information of new MCID, confirm to contain the MBS mapping message of new MCID schedule information according to the positional information of the MBS MAP of the schedule information of the new MCID that comprises among the current MBS MAP.
Preferably, the positional information that the module setting is set comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
Preferably, this device also comprises: receiver module, be used for switching to before new MCID receives new MBS, and the schedule information of the current MCID that carries through current MBS MAP receives the MBS of its carrying; And switching under the situation that new MCID receives new MBS, receive the schedule information of new MCID in the position of the MBS MAP information at the schedule information place of new MCID, and receive new MBS according to the schedule information of said new MCID.
According to a further aspect in the invention, a kind of multicast broadcast scheduling information indicating device also is provided.
Multicast broadcast scheduling information indicating device according to the present invention comprises: module is set, is used for the positional information that is provided for indicating adjacent MBS MAP at current MBS MAP; Position determination module; Be used under the situation that switches to the new MBS of new MCID reception; If current MBS MAP does not contain the schedule information of new MCID, then confirm the schedule information of new MCID, to receive new MBS at new MCID according to the positional information of adjacent MBS MAP; Receiver module, the schedule information of the MCID that is used for carrying through current MBS MAP receives the MBS of its carrying; And under the situation that switches to the new MBS of new MCID reception, receive new MBS at new MCID.
Preferably, the positional information that the module setting is set comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
Through technique scheme of the present invention; In the time of can making portable terminal switch to the MBS business of new its carrying of MCID reception; Avoid separating the subframe of transferring to obtain the MBS MAP message place of carrying required MCID schedule information, thereby saved the power consumption at terminal by subframe.
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 is the sketch map according to the position relation of the descending sub frame of prior art;
Fig. 2 is the flow chart of method for indicating multicast broadcast scheduling information according to an embodiment of the invention;
Fig. 3 is the sketch map of the position relation of descending sub frame according to an embodiment of the invention;
Fig. 4 is the flow chart of method for indicating multicast broadcast scheduling information according to another embodiment of the present invention;
Fig. 5 is the sketch map of the position relation of descending sub frame according to another embodiment of the present invention;
Fig. 6 is the block diagram of multicast broadcast scheduling information indicating device according to an embodiment of the invention;
Fig. 7 is the block diagram of multicast broadcast scheduling information indicating device according to another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Method embodiment
According to the embodiment of the invention, a kind of method for indicating multicast broadcast scheduling information is provided.
In embodiments of the present invention; MS (Mobile Station; Portable terminal) to receive the corresponding MBS of MCID professional for the schedule information through the MCID that contains in the MBSMAP message; And the positional information of current MBS MAP message is carried the corresponding arest neighbors of all MCID the contains multicast and broadcast mapping message of its schedule information, no matter whether current MBS MAP message contains the schedule information of this MCID.
Particularly, Fig. 2 is the flow chart of method for indicating multicast broadcast scheduling information according to an embodiment of the invention, and as shown in Figure 2, this method comprises following processing:
Step S202 is provided for indicating the positional information of MBS MAP of the arest neighbors of the schedule information that contains each MCID in current MBS MAP;
Step S204, the terminal receives its corresponding MBS according to the schedule information of the MCID that comprises among the current MBS MAP.
And; Need switch to new multicast and broadcast chains under the situation that receives MBS at the terminal; If current MBS MAP does not contain the schedule information of new multicast and broadcast link; Then the terminal is according to the positional information of the MBSMAP of the schedule information of the new MCID that comprises among the current MBS MAP, and directly demodulation MBS MAP obtains the schedule information that new multicast and broadcast links to the position, to receive new MBS.
Particularly, the positional information that is provided with among the step S202 comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field; And this positional information is the positional information of subframe of MBSMAP message that comprises the schedule information place of MCID; Wherein, the schedule information of MCID is included among the DATA IE of MBSMAP message.
In addition, MS obtains MBS MAP message content according to above-mentioned positional information demodulation MBS MAP message position, to obtain the schedule information of MCID; After MS obtained MCID, MS was professional through the MBS that the MCID that obtains receives its carrying.
Pass through the foregoing description; Each MCID is set in each MBS MAP message, and (no matter whether current MBS MAP message comprises the positional information that it carries the MBS business burst; The positional information of the arest neighbors MBSMAP message that contains its schedule information schedule information that whether comprises this MCID); When MS switches to the MBS business of new its carrying of MCID reception, directly obtain the schedule information of required MCID, thereby saved the power consumption of MS to the target-subframe demodulation.
As shown in Figure 3; Include MBS MAP in each descending sub frame; In the MBS of subframe Fn MAP message, not only include the schedule information (being the positional information of the professional MBS burst (MBS Burst) of the MBS that carries of MCID1) of MCID1, and indicated the next position that includes the MBS MAP message of MCID1 schedule information; In the MBS of subframe Fn+1 MAP message, not only include the schedule information (being the positional information of the professional MBS burst (MBS Burst) of the MBS that carries of MCID2) of MCID2, and indicated the next positional information that includes the MBS MAP message of MCID2 schedule information; In the MBS of subframe Fn+2 MAP message, include the schedule information (being the positional information of the professional MBS burst (MBS Burst) of the MBS that carries of MCID3) of MCID3, and indicated the next positional information that includes the MBS MAP message of MCID3 schedule information;
The positional information of the Next MBS MAP message that contains MCID2, MCID3 schedule information is set in the MBS MAP message on Fn; Like this; When MS when MCID1 switches to MCID2 or MCID3; Once just can confirm to include the position of the target MBS MAP message of target MCID schedule information, avoid obtaining the position of target MBS MAP message, thereby saved the power consumption of MS by the subframe demodulation.
Like this, for each MCID, no matter whether current MBS MAP message contains it carries the professional schedule information of MBS, and current MBS MAP message all will indicate the next MBS MAP message positional information that contains its MBS service dispatching information.This instance is applicable to the scene that has less MCID.
The positional information of MBS MAP message can be represented the frame at this message place by the frame offset field; For further indicating the particular location of MBS MAP message in frame; Can be increased in the more specific location information field in the frame, for example symbol offset number, number of symbols and subchannel number.
Through above-mentioned instance; Can make MS know the position of the next MBS MAP message of the MBS service dispatching information that contains its carrying that each MCID is corresponding from any MBS MAP message; When MS switches to the last reception of new MCID MBS business; Can avoid by the subframe demodulation, directly to target MBS MAP, belong to the subframe demodulation.
According to the embodiment of the invention, a kind of method for indicating multicast broadcast scheduling information has been proposed also.
Fig. 4 is the flow chart of method for indicating multicast broadcast scheduling information according to another embodiment of the present invention, and as shown in Figure 4, this method comprises following processing:
Step S402, the positional information that in current MBS MAP, is provided for indicating adjacent MBS MAP;
The schedule information of the MCID that step S404, MS carry through current MBS MAP receives the MBS of its carrying.
Wherein, Need switch to new multicast and broadcast at MS chains under the situation that receives new MBS; If current MBS MAP does not contain the schedule information of new multicast and broadcast link; Then MS till adjacent MBS MAP message contains the schedule information of this new MCID, thereby receives new MBS according to the schedule information of new MCID according to the position demodulation MBS MAP message of the adjacent MBS MAP of indication.
Through the foregoing description, no matter whether the positional information of the next MBSMAP message of indication in each MBS MAP message contain the schedule information of the MCID in the current MBS MAP message in the next MBS MAP message.When MS switches to the MBS business of new its carrying of MCID reception, only need each MBS MAP message place frame of demodulation, frame up to the MBS of the schedule information that includes new MCID MAP message place; So just avoided pursuing the frame demodulation, thereby saved the power consumption of MS.
In current MBS MAP message, increase the position of the next MBS MAP message of indication, like this, when MS will switch to new MCID reception MBS program, only need demodulation in the subframe that contains MBS MAP message.
As shown in Figure 5; Not only include the schedule information (being the positional information of the professional MBS burst (MBS Burst) of the MBS that carries of MCID1) of MCID1 in the MBS MAP message on the subframe Fn, and indicated the next position that includes the MBSMAP message of MCID1 schedule information; Not only include the schedule information (being the positional information of the professional MBS burst (MBSBurst) of the MBS that carries of MCID2) of MCID2 in the MBS MAP message of subframe Fn+1, and indicated the next position that includes the MBS MAP message of MCID2 schedule information; Not only include the schedule information (being the positional information of the professional MBS burst (MBS Burst) of the MBS that carries of MCID3) of MCID3 in the MBS MAP message of subframe Fn+2, and indicated the next position that includes the MBS MAP message of MCID3 schedule information.
The position of pointing out next MBS MAP message is set in the MBS MAP message on Fn, promptly contains the positional information of the MBS MAP message of MCID2 schedule information; The positional information of pointing out next MBS MAP message is set in the MBS MAP message on Fn+1, promptly contains the positional information of the MBS MAP message of MCID3 schedule information; The positional information of pointing out next MBS MAP message is set in the MBS MAP message on Fn+2, promptly contains the positional information of the MBS MAP message of MCID1 schedule information.For example, when MS when MCID1 switches to MCID3, demodulation in the subframe that contains MBS MAP message; At first demodulation subframe Fn+1; Its MCID2 that comprises is not required MCID, continue through with subframe Fn+1 in the positional information of MCID3 of the arest neighbors that is provided with, demodulation subframe Fn+2; The MCID3 that subframe Fn+2 comprises is required MCID, and MS is professional through the MBS that MCID3 receives its carrying.
Wherein, current MBS MAP message can increase a field and indicate whether to contain adjacent MBS MAP message positional information, has only this field for true, and MBS MAP message just comprises the positional information of adjacent MBS MAP message; Similar with instance 1; The positional information of MBS MAP message can be represented the frame at this message place by the frame offset field; For further indicating the particular location of MBS MAP message in frame; Can be increased in the more specific location information field in the frame, for example symbol offset number, number of symbols and subchannel number.
Table 1
| Syntax | Size(bit) | Notes |
| MBS_MAP Message format() | ------ | ------- |
| Management Message Type＝62 | 8 | 62 |
| MBS_DIUC_Change_Count | 8 | ------- |
| #MBS_DATA_IE | 4 | The num ber of included MBS DATA IEs |
| For(i＝0；i<n；i++){ | ------ | n＝#MBS_DATA_IE |
| MBS_DATA_IE() | variable | -------- |
| } | ------ | -------- |
| #Extended_MBS_DATA_IE | 4 | The number of included Extended MBSDATA IEs |
| For(i＝0；i<n；i++){ | ------ | k＝#Extended_MBS_DATA_IE |
| Extended_MBS_DATA_IE() | variable | -------- |
| } | ------ | -------- |
| #MBS_DATA_Time_Diversity_IE | 4 | The number of included MBS DATA IEs |
| For(i＝0；i<n；i++){ | ------ | m＝#MBS DATA IE |
| MBS_DATA_Time_Diversity_IE() | variable | -------- |
| } | ------ | -------- |
| Neighbor MBS MAP Indicator | 1 | If value is 1, expression contains adjacent MBS MAP message positional information |
| If(Neighbor MBS MAP Indicator＝1){ | ||
| Neighbor MBS MAP Frame Offset | 8 | The frame biasing of adjacent MBS MAP message is counted from present frame |
| Neighbor MBS MAP OFDMASymbol Offset | 8 | Adjacent MBS MAP message symbol offset in frame |
| Neighbor MBS MAP No.OFDMASymbols | 6 | Adjacent MBS MAP symbol of message number |
| Neighbor MBS MAP No.OFDMASubchannels | 6 | The number of subchannels of adjacent MBS MAP message |
| } | ||
| If(！byte boundary){ | ||
| Padding Nibble | 4 | |
| } | ||
| TLV encoding element | variable | |
| } |
Table 1 shows the composition according to the MBS MAP message of the embodiment of the invention.Scene according to reality can have multiple application mode:
If can confirm the position of adjacent MBS MAP message fully according to MBS MAP message, then field Neighbor MBS MAP Indicator extends this as 0;
Compare with instance 1, instance 2 can not guarantee once just to find to contain the subframe that the MBS MAP message of new MCID schedule information belongs to, and still but can reduce aerial expense, is applicable to the scene that has more MCID.
Device embodiment
According to the embodiment of the invention, a kind of multicast broadcast scheduling information indicating device is provided also.
Fig. 6 is the block diagram of multicast broadcast scheduling information indicating device according to an embodiment of the invention, and as shown in Figure 6, this device comprises:
And this device can also comprise: the receiver module (not shown), be connected to position determination module 620, and be used for switching to before new MCID receives new MBS, the schedule information of the current MCID that carries through current MBS MAP receives the MBS of its carrying; And under the situation that switches to the new MBS of new MCID reception, according to the new MBS of schedule information reception of new MCID.
According to another embodiment of the present invention, a kind of multicast broadcast scheduling information indicating device is provided also.
Fig. 7 is the block diagram of multicast broadcast scheduling information indicating device according to another embodiment of the present invention, and as shown in Figure 7, this device comprises:
In sum, can when portable terminal switches to the MBS business of new its carrying of MCID reception, avoid separating the subframe of transferring to obtain the MBS MAP message place of carrying required MCID through the present invention, thereby saved the power consumption at terminal by subframe.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present 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 protection scope of the present invention.
Claims (9)
1. a method for indicating multicast broadcast scheduling information is characterized in that, comprising:
In present group multicast broadcasting service mapping message MBS MAP, be provided for indicating the positional information of MBS MAP of the arest neighbors of the schedule information that contains each multicast and broadcast link identification MCID;
The terminal receives its corresponding MBS according to the schedule information of the MCID that comprises among the current MBS MAP; Need switch to new multicast and broadcast chains under the situation that receives MBS at said terminal; If said current MBS MAP does not contain the schedule information of said new MCID; Said terminal is according to the positional information of the MBS MAP of the schedule information of the said new MCID that comprises among the said current MBS MAP; Directly obtain the schedule information of said new MCID, to receive new MBS to said position demodulation MBS MAP.
2. method according to claim 1 is characterized in that, said positional information comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
3. a method for indicating multicast broadcast scheduling information is characterized in that, comprising:
The positional information that in current MBS MAP, is provided for indicating adjacent MBS MAP;
The schedule information of the MCID that carry through said current MBS MAP at the terminal receives the MBS of its carrying; Wherein, Need switch to new multicast and broadcast at said terminal and chain under the situation that receives new MBS, if said current MBS MAP does not contain the schedule information of said new MCID, the MBS MAP that said terminal demodulates is adjacent; Up to the MBS MAP of the schedule information of finding to contain new MCID, to receive new MBS.
4. method according to claim 3 is characterized in that, said positional information comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
5. a multicast broadcast scheduling information indicating device is characterized in that, comprising:
Module is set, is used for being provided for indicating the positional information of MBS MAP of the arest neighbors of the schedule information that contains each MCID at current MBS MAP;
Position determination module; Be used for chaining under the situation that receives new MBS switching to new multicast and broadcast; If said current MBS MAP does not contain the schedule information of new MCID, confirm to contain the MBS mapping message of said new MCID schedule information according to the positional information of the MBS MAP of the schedule information of the said new MCID that comprises among the said current MBS MAP.
6. device according to claim 5 is characterized in that, the said positional information that the module setting is set comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
7. device according to claim 5 is characterized in that, also comprises:
Receiver module is used for switching to before said new MCID receives new MBS, and the schedule information of the current MCID that carries through said current MBS MAP receives the MBS of its carrying; And switching under the situation that new MCID receives new MBS, receive the schedule information of new MCID in the position of the MBS MAP information at the schedule information place of said new MCID, and receive new MBS according to the schedule information of said new MCID.
8. a multicast broadcast scheduling information indicating device is characterized in that, comprising:
Module is set, is used for the positional information that is provided for indicating adjacent MBS MAP at current MBS MAP;
Position determination module; Be used for chaining under the situation that receives new MBS switching to new multicast and broadcast; If said current MBS MAP does not contain the schedule information of new multicast and broadcast link; Then confirm the schedule information of said new MCID, to receive new MBS at said new MCID according to the positional information of said adjacent MBS MAP;
Receiver module, the schedule information of the MCID that is used for carrying through said current MBS MAP receives the MBS of its carrying; And under the situation that switches to the new MBS of new MCID reception, receive new MBS at said new MCID.
9. device according to claim 8 is characterized in that, the said positional information that the module setting is set comprises that following field one of at least or its combination: frame offset field, symbol offset field, number of symbols field, subchannel number field.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1777297A (en) * | 2004-11-16 | 2006-05-24 | 华为技术有限公司 | Method for receiving multicast service |
| CN101167330A (en) * | 2005-04-25 | 2008-04-23 | 三星电子株式会社 | Method for transmitting/receiving data in a communication system |
| CN101257398A (en) * | 2006-10-18 | 2008-09-03 | 华为技术有限公司 | Method for collocating and receiving multi-broadcast service mapping message and its unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1777297A (en) * | 2004-11-16 | 2006-05-24 | 华为技术有限公司 | Method for receiving multicast service |
| CN101167330A (en) * | 2005-04-25 | 2008-04-23 | 三星电子株式会社 | Method for transmitting/receiving data in a communication system |
| CN101257398A (en) * | 2006-10-18 | 2008-09-03 | 华为技术有限公司 | Method for collocating and receiving multi-broadcast service mapping message and its unit |
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