CN101815248A - Method for transmitting multicast channel configuration information - Google Patents
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Abstract
The invention provides a method for transmitting multicast channel configuration information, which includes the following steps that: when a multicast resource for carrying a multicast channel (MCH) in a subarea is configured at the network side, one or multiple sets of MRAP parameters are selected from multicast single-frequency network (MBSFN) resource allocation pattern (MRAP) parameters configured by the subarea, an MBSFN frame and an MBSFN subframe which are used for carrying the MCH are selected from the selected MRAP parameters, and the selected MRAP parameters carrying the MCH and the configuration information of the MBSFN frame and the MBSFN subframe are then sent to the subarea. The scheme can be implemented with less signaling or parameters, and the complexity of MSAP signaling or parameter configuration at the network side is reduced.
Description
Technical field
The present invention relates to field of wireless communication, particularly in Long Term Evolution (LTE, Long TermEvolution) system, the method for transmission of multicast channel (MCH, Multicast Channel) configuration information.
Background technology
2005,3GPP (3rd Generation Partnership Project, third generation partner program) started the working group that LTE (Long Term evolution Long Term Evolution) studies, the next generation network of the 3.9G (improved 3G) of research and the evolution of design 3G (Third Generation) Moblie technology.
In order to effectively utilize mobile network resource, 3GPP has proposed multimedia broadcasting and multicast service (MBMS, Multimedia Broadcast Multicast Service, MBMS), in the mobile network, provide a data source to send the point-to-multipoint service of data to a plurality of users, the realization Internet resources are shared, and improve utilization rate of network resource, the especially Bao Gui interface resource of eating dishes without rice or wine.In the LTE network, the MBMS technology of research is called E-MBMS (Evolved MBMS, improved multimedia broadcast-multicast service).
In LTE FDD (Frequency Division Duplexing (FDD)) and LTE TDD (time division duplex), on mixed carrier, promptly existing multicast (multicast) business on this carrier wave also has unicast (clean culture) business, and this moment, radio frames was divided into MBSFN frame (multicast Single frequency network MBSFN frame, be used to carry the mulicast business, as: broadcasting service) and None-MBSFN frame (non-MBSFN frame, unicast frame just, Unicast frame, be used to carry the unicast business, as: the normal speech business); Part subframe among the MBSFN frame adopts the MBSFN radiation pattern, that is: the subframe among each MBSFN frame is divided into MBSFN subframe (MBSFN subframe) and Non-MBSFN subframe (non-MBSFN subframe again, that is: unicast subframe), and None-MBSFN frame is meant that its all subframes do not adopt the MBSFN radiation pattern, and adopts the unicast radiation pattern.
As Fig. 1, configuration MBSFN physical resource promptly has 32 radio frames in the repetition period of a 320ms on system broadcast message, and each radio frames comprises 10 subframes, always have 320 subframes, according to Testing requirement, which subframe that need indicate 320 subframes is MBSFN subframe.
In the LTE network, no matter be FDD or TDD, no matter whether receive the MBMS business, UE needs to know that each radio frames is the MBSFN frame, need also to know whether each subframe in each MBSFN frame has adopted MBSFN, that is: UE need know that each subframe is MBSFNsubframe or Non-MBSFN subframe, so that UE is in enterprising measurement of each subframe and channel estimating.Therefore, E-UTRAN (Evolved UTRAN, the improved universal terrestrial access network of Evolved Universal Terrestrial RadioAccess Network) need pass through system broadcast message, the above-mentioned information of each radio frames and subframe is notified to UE (user equipment subscriber equipment), and UE needs also to know whether each radio frames and each subframe are MBSFN frame and measurement and the channel estimating of MBSFN subframe to carry out each subframe.
According to present disclosed technology, this radio frames is called the MBSFN frame if radio frames wherein contains several MBSFN subframes.In order to save the expense on the system broadcast message, System information block 2 (the SIB2 of the system broadcast message of a sub-district, system information block2) on, adopt two levels, be that radio frame level and subframe level indicate that in 320 subframes in a 320ms repetition period which subframe to be arranged be MBSFN subframe, that is: in the repetition period of a 320ms, the multicast physical resource that is distributed for several MBSFN business on sub-district, comprise several MBSFN frames and MBSFN subframe, can comprise 1 cover or overlap radio frames and wireless sub-frame distribution pattern more, be simply referred to as MRAP (MBSFN resource allocation pattern) among the present invention.
It among the SIB2 of the system broadcast message of a sub-district multicast resource of this cell allocation, be MBSFN frame and MBSFN subframe, can comprise 1 cover or overlap the MRAP parameter more, every cover MRAP parameter comprises: radio frames distributes pattern (radio frame allocation pattern) and wireless sub-frame to distribute pattern (raidio subframe allocation pattern), and wherein: the allocation model of the MBSFN subframe in every cover MRAP parameter on each MBSFN frame is identical.
1) radio frame level: which indicates in 32 radio frames is MBSFN frame, adopts the mode of cycle and skew in radio frame level that is:, and the radio frames that promptly satisfies following formula is the MBSFN frame.SFN mod radioFrameAllocationPeriod=radioFrameAllocationOffset (formula 1)
Wherein: SFN: the frame number of radio frames;
RadioFrameAllocationPeriod: the assignment period of radio frames;
RadioFrameAllocationOffset: the allocation offsets of radio frames;
2) wireless sub-frame level: adopt BITMAP (bit mapping, be also referred to as bitmap) 10 subframe middle fingers of each MBSFNframe bright which be MBSFN subframe, that is: on the subframe level, the allocation model that is defined in the MBSFN subframe among these MBSFN frame is identical, that is: identical (10 subframes of each radio frames are numbered the number of the MBSFN subframe that is assigned with among each MBSFN frame and subframe numbering: #0, #1, ..., #9), as shown in Figure 1, radio frames SFN=#2, #3 and #6 etc. are configured to the MBSFN frame, for FDD, and wireless sub-frame # 3, #7, #8 is configured to the MBSFN subframe.Since the subframe #0 of FDD, #4, #5 and #9, the subframe #0 of TDD, #1, #2, #5, #6 can not be configured to the MBSFN subframe regularly, so the Bitmap of the allocation model of wireless sub-frame adopts 6bit, that is: Bit0, and Bit1, Bit2, Bit3, Bit4, Bit5} represents.FDD wherein, the corresponding subframe # 1 of Bit0, the corresponding subframe # 2 of Bit1, the corresponding subframe # 3 of Bit2, the corresponding subframe # 6 of Bit3, the corresponding subframe # 7 of Bit4, the corresponding subframe # 8 of Bit5; TDD, the corresponding subframe # 3 of Bit0, the corresponding subframe # 4 of Bit1, the corresponding subframe # 7 of Bit2, the corresponding subframe # 8 of Bit3, the corresponding subframe # 9 of Bit4, Bit5 keeps no actual use.When certain or some Bit are set to " 1 ", represent that then the pairing subframe of this Bit is configured to the MBSFN subframe.As shown in table 1.
Table 1: adopt Bitmap to represent the allocation model of MBSFN subframe
| Bit number | ??Bit0 | ??Bit1 | ??Bit2 | ??Bit3 | ??Bit4 | ??Bit5 |
| ??FDD | |
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|
| ??TDD | |
|
|
|
|
Meaningless |
In order to increase the configuration flexibility of MRAP, the sub-frame allocation pattern of MRAP can also adopt the method for salary distribution of 4 continuous radio frames, this moment, 32 radio frames were divided into 8 radio frames groups in the time of the repetition period of 320ms length, and each radio frames group is 4 continuous radio frames.The MRAP of this moment, on the wireless sub-frame rank, represent { Bit0 with 24 bit, Bit1, ... .Bit23}, wherein Bit0-Bit5 indicates the MBSFN subframe of the 1st radio frames, Bit6-Bit11 indicates the MBSFN subframe of the 2nd radio frames, and Bit12-Bit17 indicates the MBSFN subframe of the 3rd radio frames, and Bit18-Bit23 indicates the MBSFN subframe of the 4th radio frames.
For example: sub-frame configuration pattern=111100 of certain MRAP, for FDD, expression subframe # 1, #2, #3, #6 are configured to the MBSFN subframe, for TDD, expression subframe # 3, #4, #7, #8 are configured to the MBSFN frame.
The multicast physical source distributing of a sub-district, promptly by the MRAP among the SIB2, notify the UE (subscriber equipment of this sub-district, user equipment) which radio frames of this sub-district and wireless sub-frame are configured MBSFN frame and MBSFN subframe, can adopt one or more sets MRAP parameters, every cover MRAP parameter can be used { a, b, c} represents, wherein: the cycle that the a=radio frames is distributed; The skew that the b=radio frames is distributed; C=wireless sub-frame allocation model.
Such as: as shown in Figure 2, the multicast resource that sub-district is distributed comprises 3 cover MRAP parameters:
MRAP?1＝{peirod＝8，offset＝0，011110}；
MRAP?2＝{peirod＝8，offset＝3，110110}；
MRAP?3＝{peirod＝8，offset＝5，101100}；
According to MRAP1, and according to formula 1, the radio frames shown in the horizontal line in the corresponding diagram 2 can be known radio frames SFN=#0, #8, and #16, #24 are configured to the MBSFN frame; According to MRAP2, the radio frames shown in the grid in the corresponding diagram 2, radio frames SFN=#3, #11, #19, #27 are configured to the MBSFN frame; According to MRAP3, the radio frames shown in the vertical line in the corresponding diagram 2, radio frames SFN=#5, #13, #21, #29 are configured to the MBSFN frame.At this moment, the MBSFN frame that this sub-district is configured altogether has: SFN=#0, #3, #5, #8, #11, #13, #16, #19, #21, #24, #27, #29.
Simultaneously, for FDD, according to the sub-frame allocation pattern 011110 of MRAP1, as can be known: each MBSFN subframe of its MBSFN frame is wireless sub-frame # 2, #3, #6, #7; According to the sub-frame allocation pattern 110110 of MRAP2, each MBSFN subframe of its MBSFN frame is wireless sub-frame # 1, #2, #6, #7.
In the present 3GPP standard, stipulated that also (MCH subframe allocation pattern, the sub-frame allocation pattern of Multicast Channel also can be referred to as MSAP: the parameter sub-frame allocation pattern of Multicast Channel).Each MSAP is corresponding transmission channel MCH.
The problem that exists is at present, disposed this cell multicast configuration information of resource in the system broadcast message, it is the transmission that always total which radio frames in this sub-district and wireless sub-frame can be used for the data and the control signaling of multicast service, but transmission channel MCH is not described, promptly how a MSAP is carried on these multicast resources, that is to say MBMS business, also do not have method to illustrate how transmission channel is carried on the physical channel at many sub-districts.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of transmission of multicast channel configuration information, and available signaling or parameter seldom realizes, reduced the complexity of network side configuration MSAP signaling or parameter.
In order to address the above problem, the invention provides a kind of method of transmission of multicast channel configuration information, comprise: when the multicast resource of the Multicast Channel MCH in the sub-district is carried in the network side configuration, from the multicast Single frequency network MBSFN resource allocation mode MRAP parameter of described cell configuration, select one or more sets MRAP parameters earlier, and selection is used to carry described MCH from selected MRAP parameter MBSFN frame and MBSFN subframe, issue the MRAP parameter of the described selection of carrying MCH and the configuration information of MBSFN frame and MBSFN subframe to described sub-district then.
Further, the MRAP parameter of the described selection of carrying MCH and the configuration information of MBSFN frame and MBSFN subframe are formed a cover MSAP parameter, and described network side is handed down to described sub-district with the MSAP parameter configuration on BCCH channel of broadcast control or multicast control channel MCCH;
Described MSAP parameter comprises MBSFN frame and MBSFN sub-frame allocation pattern under the selected MRAP parameter information of expression and each the MRAP parameter.
Further, for every cover MRAP parameter of selecting, the method of network side configuration MBSFN frame allocation model is, all MBSFN frames in the described MRAP parameter are pressed the frame number sequence arrangement, therefrom select to be used to carry the initial MBSFN frame of MCH, continuous n the MBSFN frame that begins from described initial MBSFN frame is used to carry described MCH.
Further, for every cover MRAP parameter of selecting, the method of network side configuration MBSFN frame allocation model is, all MBSFN frames in the described MRAP parameter are pressed the frame number sequence arrangement, each MBSFN frame is with 1 binary representation, all MBSFN frames are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN frame correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
Further, for every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all MBSFN subframes in the described MRAP parameter are pressed the frame number sequence arrangement, each MBSFN subframe is with 1 binary representation, all MBSFN subframes are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
Further, for every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all subframes in the described MRAP parameter are pressed the subframe numbers sequence arrangement, each subframe is with 1 binary representation, all subframes are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
Further, for every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all MBSFN subframes in the described MRAP parameter are pressed the subframe numbers sequence arrangement, therefrom select the initial MBSFN subframe be used to carry MCH, continuous m the MBSFN subframe that begins from described initial MBSFN subframe is used to carry MCH.
Further, the selected MRAP parameter information of described expression is the MRAP identifier.
Further, when all MBSFN frames that comprise in the network side selection MRAP parameter were used to carry described MCH, MBSFN frame and MBSFN sub-frame allocation pattern corresponding in the described MSAP parameter were empty;
When all MBSFN subframes that comprise in the network side selection MRAP parameter were used to carry described MCH, corresponding MBSFN subframe sub-frame allocation pattern was empty in the described MSAP parameter.
Further, terminal equipment obtains all MRAP parameter informations that network side is described cell configuration after receiving the system broadcast message of this sub-district, and after receiving BCCH or MCCH, know the MSAP parameter that is used to carry MCH, and know MBSFN frame and the MBSFN subframe that is used to carry described MCH in this MSAP parameter according to MBSFN frame under the described MSAP parameter and MBSFN sub-frame allocation pattern according to MSAP parameter wherein.
Adopt method of the present invention, corresponding MSAP signaling of the multicast configuration information of resource of a MCH of carrying or parameter, by reading the MRAP identifier, can realize with signaling or parameter seldom, simultaneously when every cover MRAP parameter is regional from a MBSFN, can reduce the complexity of network side configuration MSAP signaling or parameter so that network side is avoided the interference in different MBS FN zone at an easy rate.
Description of drawings
Fig. 1 is the schematic diagram that available technology adopting radio frames rank and subframe rank are indicated the MBSFN resource;
Fig. 2 is the schematic diagram of the method for the cell configuration MBSFN frame under the overlapping region among the present invention;
Fig. 3 is the schematic diagram in different MBS FN zone and overlapping MBSFN zone among the present invention;
Fig. 4 is that network side is the flow chart that a MCH distributes the method for multicast resource among the present invention;
Fig. 5 is the flow chart of the method for the multicast resource that UE obtains carrying MCH among the present invention.
Embodiment
The invention provides a kind of method of transmission of MCH configuration information, when the multicast resource of the MCH in the sub-district is carried in the network side configuration, from the MBSFN resource allocation mode MRAP parameter of this cell configuration, select one or more sets MRAP parameters earlier, and selection is used to carry certain bar MCH from selected MRAP parameter MBSFN frame and MBSFN subframe, issue the multicast configuration information of resource of carrying this MCH to this sub-district then.
In the networking of reality, several MBSFN business are arranged on the MBSFN zone, these all MBSFN business that belong to same MBSFN zone are called a MBSFN service groups, that is to say that a MBSFN service groups only belongs to a MBSFN zone.A MBSFN zone comprises a plurality of sub-districts, and each sub-district has all disposed an identical MBSFN service groups.As shown in Figure 3,3 MBSFN zones are arranged, MBSFN zone A, MBSFN area B, MBSFN zone C.All there are several MBSFN business in each MBSFN zone.
The MTCH (MBMS TrafficChannel, MBMS Traffic Channel) that possesses all MBSFN business in identical MBSFN zone can be multiplexed into a MCH; The professional corresponding S-MCCH of these MBSFN (Secondary Multicast Control Channel, auxilliary multicast control channel) logic channel.
Resource allocation and the schedule information of these MTCH have been carried on this S-MCCH, if the MBSFN zone of these MBSFN business of this S-MCCH and its correspondence is identical, then this S-MCCH can with its corresponding MBSFN service integration to a MCH on, same, P-MCCH (PrimaryMulticast Control Channel, main multicast control channel) resource allocation and the schedule information of S-MCCH have been carried on the logic channel, if P-MCCH, S-MCCH and MTCH belong to same MBSFN zone, then they also can be multiplexed on the MCH.
Article one, MCH is carried on the PMCH physical channel, and every PMCH is carried on several MBSFN frames and the MBSFN subframe.These MBSFN frames and MBSFN subframe adopt one or more sets MRAP to dispose, and promptly comprise radio frames allocation model and wireless sub-frame allocation model.
If a sub-district belongs to the overlapping region, promptly the MBSFN business of this sub-district belongs to different MBSFN zones, then needs to overlap MBSFN frame and the MBSFN sub-frame resources that the MRAP parameter is indicated this sub-district more.As shown in Figure 3, sub-district 1 belongs to the overlapping region of 3 MBSFN zones (A, B and C), and then this sub-district needs 3 cover MRAP parameters at least.
The multicast physical resource that sub-district is distributed comprises several MBSFN frames and MBSFN subframe.These resources are used to carry MTCH (the MBMS TrafficChannel of several MBSFN business of this sub-district, the MBMS Traffic Channel) logic channel, control channel with these MBSFN business of carrying, that is: P-MCCH (Primary Multicast Control Channel, main multicast control channel) and S-MCCH (Secondary Multicast Control Channel, auxilliary multicast control channel) logic channel.
A sub-district may be in a plurality of MBSFN zone, such as shown in Figure 3, the partial service of this sub-district (sub-district 1) belongs to MBSFN zone A, and partial service is in the MBSFN area B, and partial service is in the MBSFN zone C.In the LTE system, several logic channels that are in identical MBSFN zone can be multiplexed on the transmission channel MCH.These can carry out multiplexing logic channel, comprise several identical MTCH of MBSFN zone, can also be included as the S-MCCH and/or the P-MCCH of these MTCH configuration relevant parameters.
In a word, in the present invention, the logic channel in identical MBSFN zone comprises: MTCH, P-MCCH or S-MCCH etc. can be multiplexed on the MCH.
Article one, MCH is carried on the multicast resource, promptly is carried on several MBSFN frames and the MBSFN subframe.Every MBSFN zone that MCH is corresponding unique, promptly a MCH is configured in all or part of by on the determined multicast resource of one or more sets MRAP parameters.
Network side (MCE (Multi-cell/multicast Coordination Entity, many sub-districts/multicast coordinated entity) or eNB (E-UTRAN NodeB, improved Node B)) be that the method for MCH configuration multicast resource is as shown in Figure 4, to may further comprise the steps:
A sub-district may be owing to the reasons such as overlapping region that are in the MBSFN business, many cover MRAP parameters have been assigned with, such as this sub-district has been assigned with 3 cover MRAP parameters, can be 1,2,3 then with this 3 cover number consecutively, respectively, MRAP1 is a cover MRAP parameter accordingly, and MRAP2 is a cover MRAP parameter accordingly, and MRAP3 is a cover MRAP parameter accordingly.When network side (MCE or eNB) is a MCH distribution multicast resource, at first need therefrom to select one or more sets MRAP parameters.
According to every cover MRAP parameter, network side can obtain in the repetition period of a 320ms, the distribution pattern of MBSFN subframe in the distribution pattern of MBSFN frame and each MBSFN frame, and therefrom can know which radio frames for being configured to the MBSFN frame, and know which wireless sub-frame of each MBSFN frame is assigned to the MBSFN subframe.
As Fig. 2, be example with the FDD system, the method for TDD system is similar, and the multicast resource that sub-district is distributed adopts 3 cover MRAP parameters to represent:
MRAP?1＝{peirod＝8，offset＝0，011110}；
MRAP?2＝{peirod＝8，offset＝3，110110}；
MRAP?3＝{peirod＝8，offset＝5，101100}；
MRAP in the present embodiment adopts 6bit to indicate the MBSFN sub-frame allocation pattern of 1 MBSFN frame.And adopt 24bit indicate 4 continuous radio frames MBSFN sub-frame allocation pattern method similarly.
According to MRAP1, and, can know radio frames SFN=#0 according to formula 1, #8, #16, #24 are configured to the MBSFN frame, and MRAP2 and MRAP3 are similar.
The MBSFN frame that this sub-district is configured altogether has: SFN=#0, #3, #5, #8, #11, #13, #16, #19, #21, #24, #27, #29.
In the present embodiment, establishing network side is MRAP1 and MRAP2 for the MRAP parameter that this MCH selects, that is: the determined MBSFN frame of MRAP1 (SFN=#0, #8, #16, #24), the MBSFN subframe (subframe=#2, #3, #6, #7); And the determined MBSFN frame of MRAP2 (SFN=#3, #11, #19, #27), (#6 is #7) as the back selected works of multicast resource of this MCH of carrying for subframe=#1, #2 for the MBSFN subframe.
Because all corresponding identifier of every cover MRAP parameter, this identifier can but to be not limited to be a numbering, network side is that MCH is when selecting some cover MRAP parameters, only need to select several MRAP identifiers (as the numbering of MRAP) to get final product, and the radio frames and the wireless sub-frame that do not need at length to dispose once more in this cover MRAP parameter distribute pattern.
In a word, network side is selected one or more sets MRAP parameters from being some cover MRAP parameters of this cell configuration on SIB2, and the mode of selecting some cover MRAP parameters is for selecting these MRAP identifiers.
That is to say, in every determined MBSFN frame of cover MRAP parameter and MBSFN subframe, network side selects all or part of MBSFN frame and MBSFN subframe to carry this MCH, in these MBSFN frames that will select then and the relevant information unit of MBSFN sub-frame configuration on BCCH or MCCH.
The multicast configuration information of resource of carrying every MCH is formed a cover MSAP parameter, and a cover MSAP parameter comprises MBSFN frame and MBSFN sub-frame allocation pattern under the selected MRAP parameter information of expression and each the MRAP parameter;
1) for every cover MRAP parameter of selecting, network side dispose MBSFN frame allocation model (promptly selecting continuous or discontinuous MBSFN frame to be used to carry this MCH) method can for:
Method one: all the MBSFN frames in this MRAP parameter are pressed frame number sequence arrangement (pressing frame number order from small to large or order from big to small), therefrom select to be used to carry the initial MBSFN frame of MCH, continuous n the MBSFN frame that begins from this initial MBSFN frame is used to carry MCH.
Particularly:
Can define 2 parameter: Start (Start MBSFN frame) and Length (its value equals n);
Start is the initial MBSFN frame (promptly from which MBSFN frame) of this MCH of carrying;
What MBSFN frames are used to carry MCH to Length in order to begin continuously from initial MBSFN frame;
The span of Start and Length all is: [1,2 ..., 32/period]
Therefore, in the determined MBSFN frame of this MRAP parameter, the MBSFN frame that satisfies following formula is used to carry this MCH:
MBSFN?frame＝Start+i，i＝0，1，...，length-1；
For example: when this MCH had selected MRAP1 from a plurality of MRAP parameters of this sub-district, then MBSFN frame had 4, is respectively Radio Frame Number SFN=#0, #8, #16, #24.With these 4 MBSFN frame from the little open numbering of SFN sequence number, MBSFN frame={1 then, 2,3,4}, the span of Strat and Length all is: [1,2,3,4]
Method two: from the determined MBSFN frame of this MRAP parameter, adopt the method for bitmap Bitmap to select several MBSFN frames to carry this MCH, particularly:
All MBSFN frames in this MRAP parameter are pressed the frame number sequence arrangement, each MBSFN frame is with 1 binary representation, all MBSFN frames are formed a Bitmap, the binary value that is selected for the MBSFN frame correspondence of carrying MCH among this Bitmap are changed to 1 (or 0), that is:
Corresponding the 1st the MBSFN frame of Bit0; Corresponding the 2nd the MBSFN frame of Bit1; ... the individual MBSFN frame of BitN correspondence (32/period), i.e. last MBSFNframe that obtains according to formula
Bitmap＝[Bit0，Bit1，...，Bit(32/period)]
When being 1 (or 0), Bitn represents that its corresponding MBSFN frame is used to carry this MCH.
For example: when network side has been selected MRAP1 from a plurality of MRAP parameters of this sub-district, then have 4 MBSFN frames, be respectively Radio Frame Number SFN=#0, #8, #16, #24.These 4 MBSFN frames are pressed SFN sequence number serial number from small to large, MBSFN frame={1 then, 2,3,4}, then carry the MBSFN frame={Bit0 of this MCH, Bit1, Bit2, Bit3}, as: carry the Bitmap=1010 of the MBSFN frame of this MCH, represent that then first and the 3rd MBSFN carry this MCH, just radio frames SFN=#0 and SFN=#16 carry this MCH.
Further, when from certain cover MRAP parameter, selecting all MBSFN frames to carry this MCH, corresponding MBSFN frame allocation model be empty in this MSAP parameter, when the MBSFN frame that carries this MCH equals this and overlaps all MBSFN frames that MRAP distributed, does not then need to dispose MBSFN frame allocation model that is:.At this moment, do not dispose to be and selected all MBSFN frames, not that is to say when network side disposes relevant parameter to indicate which MBSFN frame of selection to carry this MCH, just to be meant and to have selected whole MBSFN frames to carry this MCH.For example, if network side has been selected a cover MRAP parameter for this MCH, there is not configuration to be used to indicate the parameter of selecting which MBSFN frame simultaneously, as: parameter s tart in the method one and length, or the bitmap in the method two is not configured, and represents that then network side has disposed the determined whole MBSFN frames of a cover MRAP parameter for this MCH.
2) for every cover MRAP parameter of selecting, network side dispose MBSFN sub-frame allocation pattern (promptly selecting continuous or discontinuous several MBSFN subframes to be used to carry MCH) method can for:
Method one: all MBSFN subframes of MRAP parameter correspondence are pressed frame number sequence arrangement (pressing subframe numbers order from small to large or sequence arrangement from big to small), each MBSFN subframe is with 1 binary representation, all MBSFN subframes are formed a Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 (or 0).Be specially,
At first, according to the allocation model of the determined MBSFN subframe of this cover MRAP parameter, can know which subframe is configured to the MBSFN subframe.
Then, with these MBSFN subframe sequence arrangement, each MBSFN subframe is with 1 binary representation, and the binary value that wherein is used to carry the MBSFN subframe correspondence of MCH is changed to 1 (or 0).
For example, when this MCH has selected MRAP1 from a plurality of MRAP parameters of this sub-district, then according to the sub-frame allocation pattern 011110} can know the subframe # 2 of each MBSFN frame, #3, #6, #7 are configured to the MBSFN subframe; These MBSFN subframes are sorted from little the beginning of subframe sequence number, to MBSFN subframe={ Bit0, Bit1, Bit2, Bit3}, the corresponding subframe # 2 of Bit0 (the 1st MBSFN subframe) wherein, the corresponding subframe # 3 of Bit1 (the 2nd MBSFN subframe), the corresponding subframe # 6 of Bit2 (the 3rd MBSFN subframe), the corresponding subframe # 7 of Bit3 (the 4th MBSFN subframe).
As the Bitmap={0101} of MBSFN subframe, represent that then this MCH is carried on the 2nd and the 4th the MBSFN subframe, promptly is carried on wireless sub-frame # 3 and the #7.
Method two: the same procedure of MBSFN sub-frame allocation pattern in employing and the MRAP parameter, that is: all subframes in this MRAP parameter are pressed the subframe numbers sequence arrangement, each subframe is with 1 binary representation, all subframes are formed a Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
Because of having 6 subframes in each MRAP parameter, therefore the Bitmap that adopts 6 binary systems to form represents MBSFN sub-frame allocation pattern, and as shown in table 1, under the fdd mode, these 6 binary systems are represented { #1, #2, #3, #6, #7, #8} successively; Under the tdd mode, these 6 binary systems are represented { #3, #4, #7, #8, #9, meaningless } successively.Certainly, also can adopt corresponding 6 binary codes of mode of subframe numbers descending.
The subframe of selecting to be used to carry this MCH among the Bitmap must be the MBSFN subframe.
For example: with last example, when this MCH has selected MRAP1 from a plurality of MRAP parameters of this sub-district, then according to the sub-frame allocation pattern 011110} can know the subframe # 2 of each MBSFN frame, #3, #6, #7 are configured to the MBSFN subframe; MBSFN subframe={ Bit0, Bit1, Bit2, Bit3, Bit4, Bit5}.When the MBSFN subframe={ 001010} represents that then this MCH is carried on the 2nd the 4th MBSFN subframe, promptly is carried on wireless sub-frame # 3 and the #6.
It should be noted that the MBSFN subframe=Bit0, Bit1, Bit2, Bit3, Bit4, the MBSFN subframe that is configured to carry this MCH on the Bit5} at first must be the MBSFN subframe that disposes according to MRAP1.
Method three: all corresponding in MRAP parameter MBSFN subframes press the subframe numbers sequence arrangement, the selection initial MBSFN subframe that is used to carry MCH therefrom, continuous m the MBSFN subframe that begins from this initial MBSFN subframe is used to carry this MCH.
Further, the MBSFN sub-frame allocation pattern of correspondence can be sky when selecting all MBSFN subframes, that is: the MBSFN subframe of carrying this MCH equals this cover MBSFN subframe that MRAP distributed, and can also adopt the method (being that MBSFN sub-frame allocation pattern is for empty) that does not dispose relevant parameter.Not that is to say when network side disposes relevant parameter and indicate and select which MBSFN subframe to carry this MCH, just be meant that all MBSFN subframes of having selected each MBSFN frame carry this MCH.
Adopt said method, all the MBSFN frames and the MBSFN subframe that are used to carry a MCH, promptly whole multicast resources has just constituted a MSAP parameter corresponding to a MCH.This MSAP parameter comprises, represents MBSFN frame and MBSFN sub-frame allocation pattern under selected MRAP parameter information (as the MRAP identifier) and each the MRAP parameter.Promptly
1 overlaps or overlaps more MRAP parameter (as one or more MRAP identifiers)
{
MBSFN frame allocation model (mode can but to be not limited to be (Start, length), or Bitmap);
MBSFN sub-frame allocation pattern (mode can but to be not limited to be (Start, length), or Bitmap);
}
In a word, network side is that the method for a MCH distribution multicast resource is exactly to determine the method for the pairing MSAP parameter of this MCH, and the pairing MSAP of MCH comprises 1 cover or overlaps MRAP more, and several MBSFN frames and MBSFN subframe among every cover MRAP.
Obviously, the unique corresponding 1 cover MSAP parameter of MCH that is to say that the pairing MSAP parameter of different MCH is inevitable different.
UE receive determine behind BCCH that network side issues or the MCCH a certain MCH be carried on which multicast resource method as shown in Figure 5, may further comprise the steps:
UE receives the system broadcast message of this sub-district, SIB2 in the reading system broadcast according to one or more sets MRAP parameters that dispose among the SIB2, can know that this sub-district is in the time span of a 320ms, promptly on 32 radio frames, which MBSFN frame and MBSFN subframe have been disposed.
Particularly, UE reads the relevant information on BCCH or the MCCH channel, obtain the MSAP parameter of MCH, from this MSAP parameter, read the MRAP identifier, and, can know MBSFN frame and the MBSFN subframe carrying of this MCH by which MRAP parameter correspondence according to the pairing MRAP parameter of each MRAP identifier that obtains in the step 210.
Particularly, behind each MSAP identifier all to MBSFN frame and MBSFN sub-frame allocation pattern should be arranged, this allocation model can be that any one mode is represented in the employing step 120, UE can know in this MSAP parameter that by resolving this allocation model which or which MBSFN frame and MBSFN subframe are used to carry this MCH, and its set promptly constitutes this MCH all-multicast resource of carrying.
To sum up, the multicast configuration information of resource of a MCH of carrying is exactly a MSAP signaling or parameter.MBSFN frame that this MSAP parameter is indicated and MBSFN subframe can be made of all or part of multicast resource (the multicast resource comprises: MBSFN frame and MBSFN subframe) of some cover MRAP.Described many cover MRAP are characterized as, and overlap MRAP more and can come same naturally MBSFN zone, also can be from different MBSFN zones.
Adopt method of the present invention, the multicast configuration information of resource of a MCH of carrying, be exactly a MSAP signaling or parameter, by reading the MRAP identifier, can realize with signaling or parameter seldom, when every cover MRAP parameter is regional from a MBSFN, can reduce the complexity of MCE configuration MSAP signaling or parameter simultaneously so that MCE avoids the interference in different MBS FN zone at an easy rate.
Claims (10)
1. the method for a transmission of multicast channel configuration information, comprise: when the multicast resource of the Multicast Channel MCH in the sub-district is carried in the network side configuration, from the multicast Single frequency network MBSFN resource allocation mode MRAP parameter of described cell configuration, select one or more sets MRAP parameters earlier, and selection is used to carry described MCH from selected MRAP parameter MBSFN frame and MBSFN subframe, issue the MRAP parameter of the described selection of carrying MCH and the configuration information of MBSFN frame and MBSFN subframe to described sub-district then.
2. the method for claim 1 is characterized in that:
The MRAP parameter of the described selection of carrying MCH and the configuration information of MBSFN frame and MBSFN subframe are formed a cover MSAP parameter, and described network side is handed down to described sub-district with the MSAP parameter configuration on BCCH channel of broadcast control or multicast control channel MCCH;
Described MSAP parameter comprises MBSFN frame and MBSFN sub-frame allocation pattern under the selected MRAP parameter information of expression and each the MRAP parameter.
3. method as claimed in claim 1 or 2 is characterized in that:
For every cover MRAP parameter of selecting, the method of network side configuration MBSFN frame allocation model is, all MBSFN frames in the described MRAP parameter are pressed the frame number sequence arrangement, therefrom select to be used to carry the initial MBSFN frame of MCH, continuous n the MBSFN frame that begins from described initial MBSFN frame is used to carry described MCH.
4. method as claimed in claim 1 or 2 is characterized in that:
For every cover MRAP parameter of selecting, the method of network side configuration MBSFN frame allocation model is, all MBSFN frames in the described MRAP parameter are pressed the frame number sequence arrangement, each MBSFN frame is with 1 binary representation, all MBSFN frames are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN frame correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
5. method as claimed in claim 1 or 2 is characterized in that:
For every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all MBSFN subframes in the described MRAP parameter are pressed the frame number sequence arrangement, each MBSFN subframe is with 1 binary representation, all MBSFN subframes are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
6. method as claimed in claim 1 or 2 is characterized in that:
For every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all subframes in the described MRAP parameter are pressed the subframe numbers sequence arrangement, each subframe is with 1 binary representation, all subframes are formed a bitmap Bitmap, and the binary value that is selected for the MBSFN subframe correspondence of carrying MCH among this Bitmap is changed to 1 or 0.
7. method as claimed in claim 1 or 2 is characterized in that:
For every cover MRAP parameter of selecting, the method of network side configuration MBSFN sub-frame allocation pattern is, all MBSFN subframes in the described MRAP parameter are pressed the subframe numbers sequence arrangement, therefrom select the initial MBSFN subframe be used to carry MCH, continuous m the MBSFN subframe that begins from described initial MBSFN subframe is used to carry MCH.
8. method as claimed in claim 2 is characterized in that:
The selected MRAP parameter information of described expression is the MRAP identifier.
9. method as claimed in claim 1 or 2 is characterized in that:
When all MBSFN frames that comprise in the network side selection MRAP parameter were used to carry described MCH, MBSFN frame and MBSFN sub-frame allocation pattern corresponding in the described MSAP parameter were empty;
When all MBSFN subframes that comprise in the network side selection MRAP parameter were used to carry described MCH, corresponding MBSFN subframe sub-frame allocation pattern was empty in the described MSAP parameter.
10. method as claimed in claim 2 is characterized in that:
Terminal equipment obtains all MRAP parameter informations that network side is described cell configuration after receiving the system broadcast message of this sub-district, and after receiving BCCH or MCCH, know the MSAP parameter that is used to carry MCH, and know MBSFN frame and the MBSFN subframe that is used to carry described MCH in this MSAP parameter according to MBSFN frame under the described MSAP parameter and MBSFN sub-frame allocation pattern according to MSAP parameter wherein.
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| CN107770870A (en) * | 2016-08-22 | 2018-03-06 | 中国移动通信有限公司研究院 | Resource instruction, determine method, apparatus, network side equipment and receive side apparatus |
| WO2018082613A1 (en) * | 2016-11-03 | 2018-05-11 | 中兴通讯股份有限公司 | Transmission configuration method, transmission configuration determination method, base station and terminal |
| WO2019090647A1 (en) * | 2017-11-09 | 2019-05-16 | 南通朗恒通信技术有限公司 | Method used for user equipment and base station in wireless communication and apparatus |
| CN113645668A (en) * | 2020-04-27 | 2021-11-12 | 大唐移动通信设备有限公司 | Method, device and storage medium for multi-cell MBMS service transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107770870A (en) * | 2016-08-22 | 2018-03-06 | 中国移动通信有限公司研究院 | Resource instruction, determine method, apparatus, network side equipment and receive side apparatus |
| WO2018082613A1 (en) * | 2016-11-03 | 2018-05-11 | 中兴通讯股份有限公司 | Transmission configuration method, transmission configuration determination method, base station and terminal |
| CN108024268A (en) * | 2016-11-03 | 2018-05-11 | 中兴通讯股份有限公司 | A kind of transmission configuration method, transmission configuration determine method, base station and terminal |
| EP3537753A4 (en) * | 2016-11-03 | 2020-05-06 | ZTE Corporation | Transmission configuration method, transmission configuration determination method, base station and terminal |
| US11265735B2 (en) | 2016-11-03 | 2022-03-01 | Xi'an Zhongxing New Software Co., Ltd | Transmission configuration method, transmission configuration determination method, base station and terminal |
| US11758418B2 (en) | 2016-11-03 | 2023-09-12 | Hedwig Wireless Technologies Llc | Transmission configuration method, transmission configuration determination method, base station and terminal |
| WO2019090647A1 (en) * | 2017-11-09 | 2019-05-16 | 南通朗恒通信技术有限公司 | Method used for user equipment and base station in wireless communication and apparatus |
| US11140682B2 (en) | 2017-11-09 | 2021-10-05 | Shanghai Langbo Communication Technology Company Limited | Method and device in ue and base station for wireless communication |
| US11659535B2 (en) | 2017-11-09 | 2023-05-23 | Shanghai Langbo Communication Technology Company Limited | Method and device in UE and base station for wireless communication |
| CN113645668A (en) * | 2020-04-27 | 2021-11-12 | 大唐移动通信设备有限公司 | Method, device and storage medium for multi-cell MBMS service transmission |
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