CN101909243B - Method, system and device for determining subframe occupied by multicast channel (MCH) - Google Patents
Method, system and device for determining subframe occupied by multicast channel (MCH) Download PDFInfo
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Abstract
The invention relates to radio communication technology, in particular to a method, a system and a device for determining a subframe occupied by a multicast channel (MCH) and aims to solve the problem that a multimedia broadcast multicast service (MBMS) function is difficult to realize through a long term evolution (LTE) system because a user terminal cannot determine the subframe occupied by the MCH in the prior art. The method in the embodiment of the invention comprises the following steps that: a network side generates MCH subframe allocation pattern (MSAP) information corresponding to the MCH according to the position of a multicast broadcast single frequency network (MBSFN) subframe occupied by the MCH in a wireless frame collection; and the network side transmits the MSAP information to the user terminal and instructs the user terminal to determine the MBSFN subframe occupied by the MCH according to the MSAP information. Due to the adoption of the method in the embodiment of the invention, the MSAP information can be determined, so that the user terminal can be instructed to determine the MBSFN subframe occupied by the MCH according to the MSAP information; and moreover, the MBMS function can be realized in the LTE system and the utilization ratio of a network resource and user experience are enhanced.
Description
Technical field
The present invention relates to wireless communication technology, particularly the mthods, systems and devices of the subframe that takies of a kind of definite MCH (Multicast Channel, multicast communication channel).
Background technology
MBMS (Multimedia Broadcast Multicast Service, multimedia broadcast-multicast service) is used to the user terminal in the wireless area that MBMS service and multimedia multicast service are provided.
At LTE (Long Term Evolution, Long Term Evolution) MBMS in the system (the Multimedia Broadcast Multicast Service) eMBMS that is otherwise known as (evolved MBMS, the MBMS of development), major function is to realize that in the LTE system broadcast and multicast is professional.Support that the LTE residential quarter of MBMS can be that the MBMS dedicated cell also can be MBMS/ clean culture mixed cell.When carrying out the MBMS transmission, can carry out single cell transmission, also can carry out many cell transmission.
At present, MBMS transmits by corresponding logic channel and transmission channel.The current logic channel relevant with the MBMS transmission mainly contains: BCCH (Broadcast Control Channel, Broadcast Control Channel), MCCH (Multicast Control Channel, multicast control channel) and MTCH (Multicast Traffic Channel, the multicast service channel), transmission channel mainly contains: MCH (Multicast Channel, multicast channel).
Wherein, BCCH is used for network side provides broadcast system information to UE (user terminal), and namely system information is transmitted by BCCH.
MCCH is the down channel of point-to-multipoint (point-to-multipoint), is used for network side to the relevant control information of UE MBMS transmission, and a MCCH can be corresponding to one or more MTCH, and MCCH only has the UE that can receive MBMS just can use.
MTCH is a point-to-multipoint down channel, is used for network side to UE MBMS transmission data; MTCH only has the UE that can receive MBMS just can use.
Network utilisation BCCH indicates MCCH to UE, and recycling MCCH indicates MTCH to UE, thereby reaches the purpose that makes UE be received in the MBMS business of the upper carrying of MTCH.
MCH is the transmission channel for MBMS transmission, and MCCH and MTCH all can be mapped to the upper transmission of MCH.
The sub-frame allocation mode of MCH is MSAP (being MCH Subframe Allocation Pattern), transmits for determining which subframe MCH will be mapped on.UE will be according to the content of MSAP, in the subframe reception MBMS of correspondence data.
But the transformat that does not also have a kind of MSAP at present is so that user terminal can't be determined the subframe that MCH takies, so that the very difficult MBMS function that realizes of existing LTE system.
In sum, user terminal can't be determined the subframe that MCH takies at present, so that the LTE system is difficult to realize the MBMS function.
Summary of the invention
The embodiment of the invention provides the method for the subframe that a kind of definite MCH takies, and can't determine the subframe that MCH takies in order to solve the user terminal that exists in the prior art, so that the LTE system is difficult to realize the problem of MBMS function.
The method of the subframe that a kind of definite multicast communication channel MCH that the embodiment of the invention provides takies, the method comprises:
Network side is determined the first bit mapping bitmap that MCH is corresponding, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; Or described network side is determined the increment bitmap that MCH is corresponding, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information;
Described network side sends described MSAP information to user terminal, indicates described user terminal to determine the MBSFN subframe that MCH takies according to described MSAP information.
The method of the subframe that a kind of definite multicast communication channel MCH that the embodiment of the invention provides takies, the method comprises:
User terminal receives the MCH sub-frame allocation mode MSAP information from network side, described MSAP information is the bitmap after adjusting, bitmap after the described adjustment determines the first bit mapping bitmap that MCH is corresponding by network side, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains; Perhaps described MSAP information is the increment bitmap after adjusting, increment bitmap after the described adjustment determines the increment bitmap that MCH is corresponding by network side, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains;
Described user terminal is according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
The system of the subframe that a kind of definite multicast communication channel MCH that the embodiment of the invention provides takies, this system comprises:
Network equipment is used for determining the first bit mapping bitmap corresponding to MCH, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; And send described MSAP information to user terminal; Or for determining increment bitmap corresponding to MCH, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information; And send described MSAP information to user terminal;
User terminal is used for according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
A kind of network equipment that the embodiment of the invention provides, this network equipment comprises:
Generation module is used for determining the first bit mapping bitmap corresponding to MCH, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; Or for determining increment bitmap corresponding to MCH, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information;
Sending module is used for sending described MSAP information to user terminal, indicates described user terminal to determine the MBSFN subframe that MCH takies according to described MSAP information.
A kind of user terminal that the embodiment of the invention provides, this user terminal comprises:
Receiver module, be used for receiving the MCH sub-frame allocation mode MSAP information from network side, described MSAP information is the bitmap after adjusting, bitmap after the described adjustment determines the first bit mapping bitmap that MCH is corresponding by network side, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains; Perhaps described MSAP information is the increment bitmap after adjusting, increment bitmap after the described adjustment determines the increment bitmap that MCH is corresponding by network side, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains;
Determination module is used for according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
Embodiment of the invention network side generates MCH sub-frame allocation mode MSAP information corresponding to MCH according to the position of Multicast Broadcast Single Frequency Network MBSFN subframe in the radio frames set that MCH takies; Network side sends MSAP information to user terminal, and indicating user terminal is determined the MBSFN subframe that MCH takies according to MSAP information.Owing to can determine MSAP information, thereby can determine the MBSFN subframe that MCH takies according to MSAP information by indicating user terminal, and then in the LTE system, can realize the MBMS function, and the utilance and the user's experience that have improved Internet resources.
Description of drawings
Fig. 1 is MBSFN radio frames schematic diagram
Fig. 2 is the system configuration schematic diagram that the embodiment of the invention is determined the subframe that MCH takies;
Fig. 3 is the structural representation of embodiment of the invention network equipment;
Fig. 4 A is the schematic diagram of 1 MCH position of embodiment of the invention the first;
Fig. 4 B is the schematic diagram of 1 MCH position of embodiment of the invention the second;
Fig. 4 C is the schematic diagram of two MCH positions of the embodiment of the invention;
Fig. 4 D is the schematic diagram that embodiment of the invention user terminal is determined a MCH position;
Fig. 4 E is the schematic diagram that embodiment of the invention user terminal is determined another MCH position;
Fig. 5 is the structural representation of embodiment of the invention user terminal;
Fig. 6 A is the schematic diagram that embodiment of the invention the first user terminal is determined 1 MCH;
Fig. 6 B is the schematic diagram that embodiment of the invention the second user terminal is determined 1 MCH;
Fig. 7 is the method flow schematic diagram that embodiment of the invention the first is determined the subframe that MCH takies;
Fig. 8 is the method flow schematic diagram that embodiment of the invention the second is determined the subframe that MCH takies.
Embodiment
The MBSFN that embodiment of the invention network side takies according to MCH (MBSFN Multicast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) position of subframe in the radio frames set, generate MCH sub-frame allocation mode MSAP information corresponding to MCH, send MSAP information to user terminal, indicating user terminal is determined the MBSFN subframe that MCH takies according to MSAP information.Owing to can determine MSAP information, thereby can determine the MBSFN subframe that MCH takies according to MSAP information by indicating user terminal, and then in the LTE system, can realize the MBMS function.
The embodiment of the invention is the MBSFN subframe that takies according to MCH, generates and informing user terminal MSAP information; And user terminal just can determine that according to MSAP information concrete which MBSFN subframe is the MBSFN subframe that MCH takies, thereby monitors corresponding MBSFN subframe (namely monitoring MCH), just can obtain the MBMS data.
The MBSFN subframe that adopts the actual use of mode informing user terminal system of broadcast (SIB2) at present among the LTE.
The ASN.1 to the MBSFN sub-frame allocation among the 3GPP TS 36.331v8.5.0 is described below:
What the MBSFN sub-frame allocation was followed is the bitmap mode, has specifically two kinds:
(1) single radio frames bitmap.
oneFrame BIT STRING(SIZE(6))；
(2) four continuous radio frames bitmap.
fourFrames BIT STRING(SIZE(24))。
In Fig. 1, a radio frames is 10ms, and wireless frame period is 20ms, and radio frames side-play amount (offset) is that 0,1 radio frames has and is divided into 10 subframes.
For FDD (Frequency division duplex, Frequency Division Duplexing (FDD)) system, MBSFN subframe available in each radio frames is: 1,2,3,6,7,8,6 bits corresponding to bitmap, such as being MBSFN subframes of actual use according to subframe among Fig. 13,7 and 8, then the bitmap in the FDD system is 001011.
For TDD (Time division duplex, time division duplex) system, MBSFN subframe available in each radio frames is: 3,4,7,8,9, front 5 bits corresponding to bitmap, last 1 bit of bitmap does not use (being 0), such as being MBSFN subframes of actual use according to subframe among Fig. 13,7 and 8, then the bitmap in the TDD system is 101100.
The embodiment of the invention is to determine the MBSFN subframe that MCH takies in the MBSFN subframe that reality is used.
Wherein, network side can be determined the quantity of MBSFN subframe in the radio frames set that MCH need to take.The quantity of the MBSFN subframe that need to take is not more than the quantity of MBSFN subframe available in the radio frames set, has a MBSFN radio frames at least in the radio frames set.In the assumed wireless frame set MBSFN radio frames is arranged, for FDD can with the quantity of MBSFN subframe be 6, for TDD can with the quantity of MBSFN subframe be 5.
The quantity of MBSFN subframe during the radio frames that network side takies according to the MCH needs is gathered, determine the quantity of the actual MBSFN subframe of using in the radio frames set, and the MBSFN subframe of from available MBSFN subframe, selecting reality to use, the quantity of the actual MBSFN subframe of using is not less than the quantity of MBSFN subframe in the radio frames set that MCH need to take in the radio frames set, and is not more than available MBSFN subframe in the radio frames set.
For Fig. 1, the quantity of the actual MBSFN subframe of using is 3 in definite radio frames set, and the MBSFN subframe of the actual use of selection is respectively 3,7 and 8
Embodiment of the invention network side can be selected the quantity of MBSFN subframe in the radio frames set that part or all of MBSFN subframe takies as MCH in the actual MBSFN subframe of using from radio frames set, the quantity of the subframe of selection equals the quantity of MBSFN subframe in the radio frames set that MCH need to take.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
As shown in Figure 2, the embodiment of the invention determines that the system of the subframe that MCH takies comprises: network equipment 10 and user terminal 20.
As shown in Figure 3, the network equipment of the embodiment of the invention comprises: generation module 100 and sending module 110.
Sending module 110 is used for sending the MSAP information that generation module generates to user terminal, and indicating user terminal is determined the MBSFN subframe that MCH takies according to MSAP information.
In specific implementation process, radio frames is divided into a plurality of radio frames set, comprise at least one MBSFN radio frames in the radio frames set, the quantity of the MBSFN radio frames in each radio frames set is identical.There are what MBSFN radio frames to set as required in the concrete radio frames set, what follow such as present MBSFN sub-frame allocation is the bitmap mode, be single radio frames bitmap or 4 continuous radio frames bitmap, then can in the set of setting wireless frame 1 MBSFN radio frames or 4 continuous radio frames be arranged.
What MBSFN subframes concrete MCH takies, and the MBSFN subframe which radio frames set MCH takies in can be set as required.
Such as: if the information content that MCH itself comprises is less, can be placed in the MBSFN subframe, then for the FDD/TDD system, can set it and use single radio frames bitmap mode, be placed on the subframe 3 of this radio frames.
Wherein, according to the position of MBSFN subframe in the radio frames set that MCH takies, the mode of the MSAP information that generation MCH is corresponding has a variety of, and the below enumerates four kinds.
Mode one, bitmap mode.This mode uses the bitmap mode of the single radio frames (6bit) consistent with the MBSFN sub-frame allocation or continuous four radio frames (24bit) to represent MSAP information.
Concrete, generation module 100 is determined a bitmap corresponding to MCH, wherein the bit quantity of a bitmap equals the bit quantity of the 2nd bitmap of radio frames set;
The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, and adjust the parameter of a bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting;
With the bitmap after adjusting as MSAP information.
The below enumerates an embodiment mode one is described.
Shown in Fig. 4 A, suppose LTE FDD system, the wireless frame period of MBSFN sub-frame allocation is 20ms, radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
The position of MBSFN subframe in the radio frames set that generation module 100 takies according to MCH, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, be that the position of MBSFN subframe in the radio frames set that MCH takies is subframe 3 and 8, corresponding bit is respectively the 3rd and the 6th in 011011.
Since network side can be first with the wireless frame period of MBSFN sub-frame allocation, radio frames skew the 0 and the 2nd bitmap informing user terminal, so user terminal is received a bitmap (001001) afterwards, just know that subframe 3 and 8 is MBSFN subframes that MCH takies, then by monitoring subframe 3 and 8, just can receive the MBMS business.
Only has a MBSFN radio frames in the radio frames set among Fig. 4 A, if a plurality of MBSFN radio frames are arranged, the then corresponding increase of the amount of bits of a bitmap and the 2nd bitmap meeting only has the mode of a MBSFN radio frames similar in other mode and the radio frames set, repeats no more.
Mode two, delta bitmap (incremental bit mapping) mode.This mode is on the bitmap basis of MBSFN sub-frame allocation, carries out increment bitmap for the MBSFN subframe that is used for MBMS.
Concrete, generation module 100 is determined increment bitmap corresponding to MCH, wherein the bit quantity of increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of increment bitmap and the 2nd bitmap;
The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, and adjust the parameter of bit corresponding among the increment bitmap, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting;
With the increment bitmap after adjusting as MSAP information.
The below enumerates an embodiment mode one is described.
Shown in Fig. 4 A, suppose LTE FDD system, the wireless frame period of MBSFN sub-frame allocation is 20ms, radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
The position of MBSFN subframe in the radio frames set that generation module 100 takies according to MCH, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, be that the position of MBSFN subframe in the radio frames set that MCH takies is subframe 3 and 8, corresponding bit is respectively the 3rd and the 6th in 011011.
Since network side can be first with the wireless frame period of MBSFN sub-frame allocation, radio frames skew the 0 and the 2nd bitmap informing user terminal, so user terminal is received increment bitmap (0101) afterwards, just know that subframe 3 and 8 is MBSFN subframes that MCH takies, then by monitoring subframe 3 and 8, just can receive the MBMS business.
Only has a MBSFN radio frames in the radio frames set among Fig. 4 A, if a plurality of MBSFN radio frames are arranged, the then corresponding increase of the amount of bits of increment bitmap and the 2nd bitmap meeting only has the mode of a MBSFN radio frames similar in other mode and the radio frames set, repeats no more.
If the actual MBSFN subframe of using is less than available MBSFN subframe, the bit number that the bit number that then increment bitmap takies in the mode two will take less than a bitmap in the mode one.Compare mode one, mode two can be saved the data volume of transmission, improves efficiency of transmission.
Mode three, number of sub-frames and order information.This mode is on the basis of MBSFN sub-frame allocation, provides the shared number of sub-frames of MCH and order information.
Concrete, generation module 100 is according to the position of MBSFN subframe in the radio frames set that MCH takies, and determine order information and take the quantity of MBSFN subframe, and with order information with take the quantity of MBSFN subframe as MSAP information.
User terminal just can according to the order information of receiving, be determined N the MBSFN subframe that MCH takies, the quantity that takies the MBSFN subframe that wherein N equals to receive from the radio frames set.
Wherein, order information can be from front to back, also can be from back to front, can also be other order, and specifically what sequentially is that the position of MBSFN subframe in the radio frames set that take with MCH is relevant.
The position of MBSFN subframe in the radio frames set that takies such as MCH is the first two MBSFN subframe, and then order information is from front to back, after then user terminal is received MSAP information, just knows that the first two MBSFN subframe is the MBSFN subframe that MCH takies.
The below enumerates an embodiment mode one is described.
Shown in Fig. 4 B, suppose LTE FDD system, the wireless frame period of MBSFN sub-frame allocation is 20ms, radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
Since network side can be first with the wireless frame period of MBSFN sub-frame allocation, radio frames skew the 0 and the 2nd bitmap informing user terminal, so user terminal is received order information and is taken after the quantity of MBSFN subframe, just know that subframe 2 and 3 is MBSFN subframes that MCH takies, then by monitoring subframe 2 and 3, just can receive the MBMS business.
Only have a MBSFN radio frames in the set of radio frames among Fig. 4 B, have the mode of a plurality of MBSFN radio frames to only have the mode of a MBSFN radio frames similar in gathering with radio frames, repeat no more.
Mode 4, number of sub-frames.This mode is on the basis of MBSFN sub-frame allocation, provides the shared number of sub-frames of MCH.
Concrete, generation module 100 determines to take the quantity of MBSFN subframe according to the position of MBSFN subframe in the radio frames set that MCH takies, and will take the quantity of MBSFN subframe as MSAP information.
User terminal can according to predefined order information, be determined N the MBSFN subframe that MCH takies, the quantity that takies the MBSFN subframe that wherein N equals to receive from the radio frames set.
Mode 4 is similar with mode 3, and difference is that 4 of modes will take the quantity informing user terminal of MBSFN subframe, and order information sets in advance in network equipment and user terminal.
Such as, in agreement, set order information, also can be network equipment and the user terminal rear definite order information of holding consultation.
User terminal just can determine that according to predefined order information and the quantity that takies the MBSFN subframe of receiving concrete which MBSFN subframe is the MBSFN subframe that MCH takies like this.
Mode 4 is less than mode 3 in the data volume in when transmission, but because order information is predefined, so the flexibility when selecting MCH to take which MBSFN subframe does not have mode 3 flexible.
In specific implementation process, can select as required a kind of mode in the upper type to generate MSAP information.
Need to prove, above 4 kinds of modes just illustrate, the embodiment of the invention is not limited to above-mentioned 4 kinds of modes, other MBSFN subframe that can take according to MCH positions in the radio frames set, and the mode that generates MSAP information corresponding to MCH all is suitable for the embodiment of the invention.
Wherein, sending module 100 can send MSAP information to user terminal by a kind of in the following manner:
MSAP information is placed in RRC (Radio Resource Control, the Radio Resource control) message, send (namely can increase the special-purpose SIB of a MBMS newly or expand existing SIB) by BCCH;
MSAP information is placed RRC message, send by MCCH.
Need to prove, the embodiment of the invention is not limited to above-mentioned two kinds of send modes, and other can all be suitable for the embodiment of the invention to the mode that user terminal sends MSAP information.
Wherein, the transmission cycle of MCH and side-play amount (offset) can be by explicit or implicit notices.
If explicit way then sends after transmission cycle, side-play amount and the binding of MSAP information of sending module 110 with MCH;
Corresponding user terminal is determined the MBSFN subframe that corresponding MCH takies according to transmission cycle, side-play amount and the MSAP information received.
Transmission cycle and side-play amount with the MBSFN radio frames is identical respectively if the transmission cycle of MCH is with side-play amount, then can adopt implicit, and namely 110 of sending modules send MSAP information, do not send transmission cycle and the side-play amount of MCH;
Accordingly, after user terminal is received MSAP information, transmission cycle and the side-play amount with the MBSFN radio frames is identical respectively with side-play amount just to know the transmission cycle of MCH, the transmission cycle of the MBSFN radio frames during then user terminal is gathered radio frames and side-play amount are as transmission cycle and the side-play amount of MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe that corresponding MCH takies.
If employing mode one (bitmap) generates MSAP information, then the RRC signaling format is as follows:
1) wireless frame period and the skew (offset) of demonstration instruct MS AP:
2) wireless frame period of implicit expression instruct MS AP and skew (offset):
If employing mode two (increment bitmap) generates MSAP information, then the RRC signaling format is as follows:
1) wireless frame period and the skew (offset) of demonstration instruct MS AP:
2) wireless frame period of implicit expression instruct MS AP and skew (offset):
If employing mode three or mode four generate MSAP information, then the RRC signaling format is as follows:
1) wireless frame period and the skew (offset) of demonstration instruct MS AP:
2) wireless frame period of implicit expression instruct MS AP and skew (offset):
MSAP-SubframeConfig::＝SEQUENCE{
subframeAllocation INTEGER(1..24)
}
Because MCCH and MTCH all can be mapped to the upper transmission of MCH, and a plurality of MBMS can occur and carry out simultaneously, so the situation that a plurality of MCH need to take the MBSFN subframe might occur.
Wherein, a plurality of MCH can take the different MBS FN subframe in the same radio frames set; Also can a plurality of MCH take the MBSFN subframe in the set of different radio frame; Can also part MCH take the different MBS FN subframe in the same radio frames set, all the other MCH take the MBSFN subframe in the set of different radio frame.Concrete which kind of mode that adopts can be selected as required.
If a plurality of MCH take the different MBS FN subframe in the set of same radio frames, then each MCH MBSFN subframe sum that need to take can not be greater than the quantity of the MBSFN subframe in the individual radio frames set.
Because each MCH can corresponding MSAP information, so if a plurality of MCH are arranged, generation module 100 will generate a plurality of MSAP information, corresponding sending module 110 will send a plurality of MSAP information to user terminal.In order to allow user terminal can identify corresponding which MCH of which MSAP information, the networking side apparatus of the embodiment of the invention can further include: processing module 120.
Processing module 120 is used for after generation module 100 generates the MSAP information, and sending module 110 sends before the MSAP information, and the sign of MCH is placed MSAP information corresponding to this MCH, and indicating user terminal is determined MCH corresponding to MSAP information according to sign.
Such as two MCH are arranged, be respectively MCCH and MTCH, then processing module 120 sign that MCCH is corresponding places MSAP information corresponding to MCCH, and the sign that MTCH is corresponding places MSAP information corresponding to MTCH.
Accordingly, user terminal can be according to sign and the corresponding relation of channel, determines the channel of the sign correspondence received, thereby just knows what channel of MSAP information correspondence.
In specific implementation process, the corresponding relation of sign and channel can be generated and sent to user terminal by processing module 120, and such as increasing a MCH, processing module 120 is just distributed a sign for this MCH and set up the corresponding relation of sign and channel.The corresponding relation that processing module 120 can be set up a sign and channel just sends one to user terminal; After can waiting until that also the MCH increase is complete, all signs of setting up and the corresponding relation of channel are sent to user terminal.
The corresponding relation of sign and channel can also be to be set in advance in network equipment and the user terminal, (or calling for network equipment and user terminal in other equipment), processing module 120 can be determined the sign that MCH is corresponding according to the corresponding relation of sign and channel, then this sign is placed MSAP information corresponding to this MCH.
The below enumerates an embodiment mode of a plurality of MCH is described.
Shown in Fig. 4 C, suppose LTE FDD system, the wireless frame period of MBSFN sub-frame allocation is 20ms, radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
Have two MCH in the MBSFN zone, corresponding to two MSAP:MSAP1 and MSAP2, the cycle of the two is 40ms, and the radio frames skew (offset) of MSAP1 is that the radio frames skew (offset) of 0, MSAP1 is 2.
If employing mode one generates MSAP information, then MSAP1 is 010010 (being that first MCH takies subframe 2 and 7), and MSAP2 is 001000 (namely second MCH takies subframe 3).If employing mode two generates MSAP information, then MSAP1 is that 1010, MSAP2 is 0100.
The wireless frame period of MSAP1 and MSAP2 and skew are all by BCCH or MCCH broadcasting, the wireless frame period that is MSAP1 is 40ms (perhaps 2 times MBSFN wireless frame period), radio frames skew (offset) is 0 (perhaps the same with the skew of MBSFN radio frames), the wireless frame period of MSAP2 is 40ms (perhaps 2 times MBSFN wireless frame period), and radio frames skew (offset) is 2.
Processing module 120 places MSAP1 with the sign of first MCH, and the sign of second MCH is placed MSAP2.
User terminal is received after MBSFN sub-frame allocation mode and the MSAP1, can determine corresponding first MCH of MSAP1 according to sign, then just can obtain the information of the shared subframe of MSAP1 in conjunction with MBSFN sub-frame allocation mode and MSAP1, then by monitoring the subframe at MSAP1 place, receive MBMS professional, specifically can be referring to Fig. 4 D.
User terminal is received after MBSFN sub-frame allocation mode and the MSAP2, can determine corresponding first MCH of MSAP1 according to sign, then just can obtain the information of the shared subframe of MSAP2 in conjunction with MBSFN sub-frame allocation mode and MSAP2, then by monitoring the subframe at MSAP2 place, receive MBMS professional, specifically can be referring to Fig. 4 E.
In specific implementation process, the user determines the radio frames that the two is shared according to cycle and the offset of MSAP1 and MSAP2, if namely the two cycle all identical with offset, be in exactly in the same radio frames, otherwise just be in the different radio frames.
Only have a MBSFN radio frames in the set of radio frames among Fig. 4 C, have the mode of a plurality of MBSFN radio frames to only have the mode of a MBSFN radio frames similar in gathering with radio frames, repeat no more.
In specific implementation process, the network equipment of the embodiment of the invention can be the base station, also can be other equipment of network side, can also be the new equipment of network side.
As shown in Figure 5, the user terminal of the embodiment of the invention comprises: receiver module 200 and determination module 210.
Wherein, the MSAP information position of MBSFN subframe in the radio frames set that to be network side take according to MCH (concrete generating mode is referring to the related content of embodiment of the invention network equipment) that generate.
Then determination module 210 is monitored the MBSFN subframe that MCH takies, and just can receive the MBMS business.
Concrete, determination module 210 judges whether to receive transmission cycle and the side-play amount of the MCH that binds with MSAP information;
If so, then according to transmission cycle, side-play amount and the MSAP information received, the MBSFN subframe in the radio frames set that definite corresponding MCH takies;
Otherwise, with the transmission cycle of MBSFN radio frames and side-play amount transmission cycle and the side-play amount as MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe in the radio frames set that corresponding MCH takies.
If a plurality of MCH are arranged, determination module 210 also needs the corresponding relation according to sign and channel, determines the MCH of the sign correspondence in the MSAP information, thereby determines MCH corresponding to MSAP information.
Wherein, the generating mode of MSAP information is different, and the form of corresponding MSAP information is also different.The generating mode of MSAP information can be referring to the corresponding contents of embodiment of the invention network equipment.
If employing mode one or mode two, then MSAP information is bitmap or increment bitmap.As shown in Figure 6A, corresponding with Fig. 4 A, LTE FDD system, the nothing of MBSFN sub-frame allocation
The line frame period is 20ms, and radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
MSAP information is 001001 or 0101, and then determination module 210 just can determine that according to the 2nd bitmap:011011 that receives subframe 3 and 8 is MBSFN subframes that MCH takies.
If employing mode three or mode four, then MSAP information is number of sub-frames and order information or number of sub-frames.
Shown in Fig. 6 B, corresponding with Fig. 4 B, LTE FDD system, the wireless frame period of MBSFN sub-frame allocation are 20ms, and radio frames skew (offset) is 0.The 2nd bitmap:011011 (being that subframe 2,3,7 and 8 is MBSFN subframes) of radio frames set, above information is present among the SIB2.
Number of sub-frames is 2, and order information is from front to back, and then determination module 210 just can determine that subframe 2 and 3 is MBSFN subframes that MCH takies.
The mode of determining a plurality of MCH has corresponding introduction in the content of embodiment of the invention network equipment, repeat no more.
As shown in Figure 7, embodiment of the invention the first determines that the method for the subframe that MCH takies comprises the following steps:
In specific implementation process, network side is divided into a plurality of radio frames set with radio frames before the step 701, comprises at least one MBSFN radio frames in the radio frames set, and the quantity of the MBSFN radio frames in each radio frames set is identical.There are what MBSFN radio frames to set as required in the concrete radio frames set, what follow such as present MBSFN sub-frame allocation is the bitmap mode, be single radio frames bitmap or 4 continuous radio frames bitmap, then can in the set of setting wireless frame 1 MBSFN radio frames or 4 continuous radio frames be arranged.
What MBSFN subframes concrete MCH takies, and the individual MBSFN subframe which radio frames set MCH takies in can be set as required.
Such as: if the information content that MCH itself comprises is less, can be placed in the MBSFSN subframe, then for the FDD/TDD system, can set it and use single radio frames bitmap mode, be placed on the subframe 3 of this radio frames.
Wherein, in the step 701, the position of MBSFN subframe in the radio frames set that network side takies according to MCH, the mode of the MSAP information that generation MCH is corresponding has a variety of, and the below enumerates four kinds.
Mode one, bitmap mode.This mode uses the bitmap mode of the single radio frames (6bit) consistent with the MBSFN sub-frame allocation or continuous four radio frames (24bit) to represent MSAP information.
Concrete, network side is determined the bitmap that MCH is corresponding, wherein the bit quantity of a bitmap equals the bit quantity of the 2nd bitmap of radio frames set;
The position of MBSFN subframe in the radio frames set that network side takies according to MCH, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, and adjust the parameter of a bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting;
Bitmap after network side will be adjusted is as MSAP information.
The specific embodiment of mode one can be referring to Fig. 4 A, particular content can referring in the embodiment of the invention network equipment for the explanation of mode one, do not repeat them here.
Only has a MBSFN radio frames in the radio frames set among Fig. 4 A, if a plurality of MBSFN radio frames are arranged, the then corresponding increase of the amount of bits of a bitmap and the 2nd bitmap meeting only has the mode of a MBSFN radio frames similar in other mode and the radio frames set, repeats no more.
Mode two, delta bitmap (incremental bit mapping) mode.This mode is on the bitmap basis of MBSFN sub-frame allocation, carries out increment bitmap for the MBSFN subframe.
Concrete, network side is determined the increment bitmap that MCH is corresponding, wherein the bit quantity of increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of increment bitmap and the 2nd bitmap;
The position of MBSFN subframe in the radio frames set that network side takies according to MCH, determine that each MBSFN subframe that MCH takies is at bit corresponding to the 2nd bitmap, and adjust the parameter of bit corresponding among the increment bitmap, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting;
Increment bitmap after network side will be adjusted is as MSAP information.
The specific embodiment of mode two can be referring to Fig. 4 A, particular content can referring in the embodiment of the invention network equipment for the explanation of mode two, do not repeat them here.
Only has a MBSFN radio frames in the radio frames set among Fig. 4 A, if a plurality of MBSFN radio frames are arranged, the then corresponding increase of the amount of bits of increment bitmap and the 2nd bitmap meeting only has the mode of a MBSFN radio frames similar in other mode and the radio frames set, repeats no more.
If the actual MBSFN subframe of using is less than available MBSFN subframe, the bit number that the bit number that then increment bitmap takies in the mode two will take less than a bitmap in the mode one.Compare mode one, mode two can be saved the data volume of transmission, improves efficiency of transmission.
Mode three, number of sub-frames and order information.This mode is on the basis of MBSFN sub-frame allocation, provides the shared number of sub-frames of MCH and order information.
Concrete, network side is according to the position of MBSFN subframe in the radio frames set that MCH takies, and determine order information and take the quantity of MBSFN subframe, and with order information with take the quantity of MBSFN subframe as MSAP information.
Accordingly, user terminal is determined N the MBSFN subframe that MCH takies, the quantity that takies the MBSFN subframe that wherein N equals to receive according to the order information of receiving from the radio frames set.
Wherein, order information can be from front to back, also can be from back to front, can also be other order, and specifically what sequentially is that the position of MBSFN subframe in the radio frames set that take with MCH is relevant.
The position of MBSFN subframe in the radio frames set that takies such as MCH is the first two MBSFN subframe, and then order information is from front to back, after then user terminal is received MSAP information, just knows that the first two MBSFN subframe is the MBSFN subframe that MCH takies.
The specific embodiment of mode three can be referring to Fig. 4 B, particular content can referring in the embodiment of the invention network equipment for the explanation of mode three, do not repeat them here.
Only have a MBSFN radio frames in the set of radio frames among Fig. 4 B, have the mode of a plurality of MBSFN radio frames to only have the mode of a MBSFN radio frames similar in gathering with radio frames, repeat no more.
Mode 4, number of sub-frames.This mode is on the basis of MBSFN sub-frame allocation, provides the shared number of sub-frames of MCH.
Concrete, network side determines to take the quantity of MBSFN subframe according to the position of MBSFN subframe in the radio frames set that MCH takies, and will take the quantity of MBSFN subframe as MSAP information.
Accordingly, user terminal is determined N the MBSFN subframe that MCH takies, the quantity that takies the MBSFN subframe that wherein N equals to receive according to predefined order information from the radio frames set.
Mode 4 is similar with mode 3, and difference is that 4 of modes will take the quantity informing user terminal of MBSFN subframe, and order information sets in advance in network equipment and user terminal.
Such as, in agreement, set order information, also can be network equipment and the user terminal rear definite order information of holding consultation.
User terminal just can determine that according to predefined order information and the quantity that takies the MBSFN subframe of receiving concrete which MBSFN subframe is the MBSFN subframe that MCH takies like this.
Mode 4 is less than mode 3 in the data volume in when transmission, but because order information is predefined, so the flexibility when selecting MCH to take which MBSFN subframe does not have mode 3 flexible.
In specific implementation process, can select as required a kind of mode in the upper type to generate MSAP information.
Need to prove, above 4 kinds of modes just illustrate, the embodiment of the invention is not limited to above-mentioned 4 kinds of modes, other MBSFN subframe that can take according to MCH positions in the radio frames set, and the mode that generates MSAP information corresponding to MCH all is suitable for the embodiment of the invention.
Wherein, network side can send MSAP information to user terminal by a kind of in the following manner in the step 702:
MSAP information is placed RRC message, send (namely can increase the special-purpose SIB of a MBMS newly or expand existing SIB) by BCCH;
MSAP information is placed RRC message, send by MCCH.
Need to prove, the embodiment of the invention is not limited to above-mentioned two kinds of send modes, and other can all be suitable for the embodiment of the invention to the mode that user terminal sends MSAP information.
Wherein, the transmission cycle of MCH and side-play amount (offset) can be by explicit or implicit notices.
If explicit way then sends after transmission cycle, side-play amount and the binding of MSAP information of network side with MCH in the step 702;
Corresponding user terminal is determined the MBSFN subframe that corresponding MCH takies according to transmission cycle, side-play amount and the MSAP information received.
Transmission cycle and side-play amount with the MBSFN radio frames is identical respectively if the transmission cycle of MCH is with side-play amount, then can adopt implicit, and namely network side only sends MSAP information in the step 702, does not send transmission cycle and the side-play amount of MCH;
Accordingly, after user terminal is received MSAP information, transmission cycle and the side-play amount with the MBSFN radio frames is identical respectively with side-play amount just to know the transmission cycle of MCH, the transmission cycle of the MBSFN radio frames during then user terminal is gathered radio frames and side-play amount are as transmission cycle and the side-play amount of MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe that corresponding MCH takies.
The concrete form of RRC signaling can be referring to the corresponding contents of embodiment of the invention network equipment.
Because MCCH and MTCH all can be mapped to the upper transmission of MCH, and a plurality of MBMS can occur and carry out simultaneously, so the situation that a plurality of MCH need to take the MBSFN subframe might occur.
Wherein, a plurality of MCH can take the different MBS FN subframe in the same radio frames set; Also can a plurality of MCH take the MBSFN subframe in the set of different radio frame; Can also part MCH take the different MBS FN subframe in the same radio frames set, all the other MCH take the MBSFN subframe in the set of different radio frame.Concrete which kind of mode that adopts can be selected as required.
If a plurality of MCH take the different MBS FN subframe in the set of same radio frames, then each MCH MBSFN subframe sum that need to take can not be greater than the quantity of the MBSFN subframe in the individual radio frames set.
Because each MCH can corresponding MSAP information, so if a plurality of MCH are arranged, network side will generate a plurality of MSAP information in the step 701, network side will send a plurality of MSAP information to user terminal in the corresponding step 702.In order to allow user terminal can identify corresponding which MCH of which MSAP information, can further include before step 701 and the step 702:
Step a702, network side place MSAP information corresponding to this MCH with the sign of MCH, be used to indicate user terminal and determine that according to sign MCH corresponding to MSAP information is such as two MCH are arranged, respectively MCCH and MTCH, then among the step a702, the sign that network side is corresponding with MCCH places MSAP information corresponding to MCCH, and the sign that MTCH is corresponding places MSAP information corresponding to MTCH.
Accordingly, user terminal can be according to sign and the corresponding relation of channel, determines the channel of the sign correspondence received, thereby just knows what channel of MSAP information correspondence.
In specific implementation process, the corresponding relation of sign and channel can be generated and sent to user terminal by network side, and such as increasing a MCH, network side just distributes a sign for this MCH and sets up the corresponding relation of sign and channel.The corresponding relation that network side can be set up a sign and channel just sends one to user terminal; After can waiting until that also the MCH increase is complete, all signs of setting up and the corresponding relation of channel are sent to user terminal.
Sign and the corresponding relation of channel can also not be by the network side generation but predefined, the corresponding relation of predefined sign and channel can be notified to user terminal by network side, also can pre-save in user terminal (or calling for network side and user terminal in other equipment).
The specific embodiment of a plurality of MCH can be referring to Fig. 4 C, 4D and 4E, particular content can referring in the embodiment of the invention network equipment for the explanation of Fig. 4 C, 4D and 4E, do not repeat them here.
As shown in Figure 8, embodiment of the invention the second determines that the method for the subframe that MCH takies comprises the following steps:
Wherein, the MSAP information position of MBSFN subframe in the radio frames set that to be network side take according to MCH (concrete generating mode is determined the method related content of MCH referring to embodiment of the invention the first) that generate.
After the MBSFN subframe of determining the radio frames set Shen that MCH takies, user terminal is monitored the MBSFN subframe that MCH takies, and just can receive the MBMS business.
Concrete, user terminal judges whether to receive transmission cycle and the side-play amount of the MCH that binds with MSAP information in the step 802;
If so, then according to transmission cycle, side-play amount and the MSAP information received, the MBSFN subframe in the radio frames set that definite corresponding MCH takies;
Otherwise, with the transmission cycle of MBSFN radio frames and side-play amount transmission cycle and the side-play amount as MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe in the radio frames set that corresponding MCH takies.
If a plurality of MCH are arranged, user terminal also needs the corresponding relation according to sign and channel, determines the MCH of the sign correspondence in the MSAP information, thereby determines MCH corresponding to MSAP information.
Wherein, the generating mode of MSAP information is different, and the form of corresponding MSAP information is also different.
The generating mode of MSAP information can be referring to the corresponding contents of embodiment of the invention network equipment.
If employing mode one or mode two, then MSAP information is bitmap or increment bitmap, specifically can referring to the corresponding contents of Fig. 6 A and embodiment of the invention subscriber terminal equipment, not repeat them here.
If employing mode three or mode four, then MSAP information is number of sub-frames and order information or number of sub-frames, specifically can referring to the corresponding contents of Fig. 6 B and embodiment of the invention subscriber terminal equipment, not repeat them here.
Can find out from above-described embodiment: embodiment of the invention network side generates MCH sub-frame allocation mode MSAP information corresponding to MCH according to the position of Multicast Broadcast Single Frequency Network MBSFN subframe in the radio frames set that MCH takies; Network side sends MSAP information to user terminal, and indicating user terminal is determined the MBSFN subframe that MCH takies according to MSAP information.
Owing to can determine MSAP information, thereby can determine the MBSFN subframe that MCH takies according to MSAP information by indicating user terminal, and then in the LTE system, can realize the MBMS function, and the utilance and the user's experience that have improved Internet resources.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1. the method for the subframe that takies of a definite multicast communication channel MCH is characterized in that, the method comprises:
Network side is determined the first bit mapping bitmap that MCH is corresponding, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; Or described network side is determined the increment bitmap that MCH is corresponding, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information;
Described network side sends described MSAP information to user terminal, indicates described user terminal to determine the MBSFN subframe that MCH takies according to described MSAP information.
2. the method for claim 1 is characterized in that, described network side sends described MSAP information by a kind of in the following manner to user terminal:
Described MSAP information is placed radio resource control RRC message, send by BCCH channel of broadcast control;
Described MSAP information is placed RRC message, send by multicast control channel MCCH.
3. method as claimed in claim 1 or 2 is characterized in that, described network side sends described MSAP information to user terminal and comprises:
Send after transmission cycle, side-play amount and the binding of MSAP information of described network side with MCH;
Described method also comprises:
Described user terminal is determined the MBSFN subframe that corresponding MCH takies according to described transmission cycle, side-play amount and the MSAP information received.
4. such as claim 1 or the described method of 2 arbitrary claims, it is characterized in that, described method also comprises:
Described user terminal is the transmission cycle of the MBSFN radio frames in the radio frames set and side-play amount transmission cycle and the side-play amount as MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determines the MBSFN subframe that corresponding MCH takies.
5. the method for claim 1 is characterized in that, described network side generates after the MSAP information, sends MSAP information and also comprises before:
Described network side places MSAP information corresponding to this MCH with the sign of MCH, is used to indicate user terminal and determines the MCH that MSAP information is corresponding according to described sign.
6. the method for the subframe that takies of a definite multicast communication channel MCH is characterized in that, the method comprises:
User terminal receives the MCH sub-frame allocation mode MSAP information from network side, described MSAP information is the bitmap after adjusting, bitmap after the described adjustment determines the first bit mapping bitmap that MCH is corresponding by network side, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains; Perhaps described MSAP information is the increment bitmap after adjusting, increment bitmap after the described adjustment determines the increment bitmap that MCH is corresponding by network side, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains;
Described user terminal is according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
7. method as claimed in claim 6 is characterized in that, described all families terminal determines that the MBSFN subframe comprises:
Described user terminal judges whether to receive transmission cycle and the side-play amount of the MCH that binds with MSAP information;
If so, then according to described transmission cycle, side-play amount and the MSAP information received, the MBSFN subframe in the radio frames set that definite corresponding MCH takies;
Otherwise, with the transmission cycle of MBSFN radio frames and side-play amount transmission cycle and the side-play amount as MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe in the radio frames set that corresponding MCH takies.
8. the system of the subframe that takies of a definite multicast communication channel MCH is characterized in that, this system comprises:
Network equipment is used for determining the first bit mapping bitmap corresponding to MCH, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; And send described MSAP information to user terminal; Or for determining increment bitmap corresponding to MCH, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information; And send described MSAP information to user terminal;
User terminal is used for according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
9. a network equipment is characterized in that, this network equipment comprises:
Generation module is used for determining the first bit mapping bitmap corresponding to MCH, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the bitmap after adjusting as described MSAP information; Or for determining increment bitmap corresponding to MCH, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe corresponding to Parametric Representation of bit is the MBSFN subframe that MCH takies after adjusting; With the increment bitmap after adjusting as described MSAP information;
Sending module is used for sending described MSAP information to user terminal, indicates described user terminal to determine the MBSFN subframe that MCH takies according to described MSAP information.
10. network equipment as claimed in claim 9 is characterized in that, described sending module is used for:
Transmission cycle, side-play amount and the MSAP information binding rear line terminal of MCH are sent, be used to indicate user terminal according to described transmission cycle, side-play amount and the MSAP information received, determine the MBSFN subframe that corresponding MCH takies.
11. network equipment as claimed in claim 9 is characterized in that, described network equipment also comprises:
Processing module, be used for after described generation module generates described MSAP information, described sending module sends before the MSAP information, and the sign of MCH is placed MSAP information corresponding to this MCH, and indicating user terminal is determined the MCH that MSAP information is corresponding according to described sign.
12. a user terminal is characterized in that, this user terminal comprises:
Receiver module, be used for receiving the MCH sub-frame allocation mode MSAP information from network side, described MSAP information is the bitmap after adjusting, bitmap after the described adjustment determines the first bit mapping bitmap that MCH is corresponding by network side, and the bit quantity of a wherein said bitmap equals the bit quantity of the 2nd bitmap of radio frames set; The position of the Multicast Broadcast Single Frequency Network MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust the parameter of a described bitmap same bits position, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains; Perhaps described MSAP information is the increment bitmap after adjusting, increment bitmap after the described adjustment determines the increment bitmap that MCH is corresponding by network side, the bit quantity of wherein said increment bitmap equals actual bit quantity corresponding to MBSFN subframe that is used for MBMS of using among the 2nd bitmap of radio frames set, and the actual bit for the MBSFN subframe of MBMS that uses is corresponding one by one among the bit of described increment bitmap and described the 2nd bitmap; The position of the MBSFN subframe that takies according to MCH in the radio frames set, determine that each MBSFN subframe that MCH takies is at bit corresponding to described the 2nd bitmap, and adjust among the described increment bitmap parameter of corresponding bit, the MBSFN subframe that the MBSFN subframe MCH corresponding to Parametric Representation of bit takies after adjusting obtains;
Determination module is used for according to described MSAP information, determines the MBSFN subframe in the radio frames set that MCH corresponding to described MSAP information take.
13. user terminal as claimed in claim 12 is characterized in that, described determination module is used for:
Judge whether to receive transmission cycle and the side-play amount of the MCH that binds with MSAP information;
If so, then according to described transmission cycle, side-play amount and the MSAP information received, the MBSFN subframe in the radio frames set that definite corresponding MCH takies;
Otherwise, with the transmission cycle of MBSFN radio frames and side-play amount transmission cycle and the side-play amount as MCH, and according to transmission cycle, the side-play amount of MCH and the MSAP information of receiving, determine the MBSFN subframe in the radio frames set that corresponding MCH takies.
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| CN105472569B (en) | 2014-08-14 | 2020-05-19 | 中兴通讯股份有限公司 | Method and device for allocating and processing subframe resources |
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| CN101184076A (en) * | 2007-12-18 | 2008-05-21 | 中兴通讯股份有限公司 | Multicast Single frequency network subframe structure in mobile broadband system and transmitting method thereof |
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| CN101184076A (en) * | 2007-12-18 | 2008-05-21 | 中兴通讯股份有限公司 | Multicast Single frequency network subframe structure in mobile broadband system and transmitting method thereof |
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