CN106301681A

CN106301681A - A kind of PMCH transmission method based on MUST and device

Info

Publication number: CN106301681A
Application number: CN201510371857.9A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2017-01-04
Anticipated expiration: 2035-06-29
Also published as: CN106301681B

Abstract

The invention discloses the transmission plan of multi-casting communication in a kind of wireless communication system, particularly relate to for transmission method and the device performing MUST on PMCH.Base station sends a MBSFN-SubframeConfig IE, and a MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.And sending the second high-level signaling, the second high-level signaling indicates the second sub-frame set.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is made up of the described subframe being reserved for descending MBSFN.And base station sends the first signal and secondary signal in given subframe.The present invention can obtain the subframe position of the second sub-frame set by less signaling consumption, and is distributed by the transmit power supporting secondary signal, it is ensured that the performance gain of MUST transmission.

Description

A kind of PMCH transmission method based on MUST and device

Technical field

The present invention relates to the transmission plan of multi-casting communication in wireless communication system, particularly relate to pin MUST is performed on PMCH (Physical Multicast Channel, Physical Multicast Channel) The biography of (Multi User Superposition Transmission, multi-user's superposed transmission) Transmission method and device.

Background technology

Traditional 3GPP (3rd Generation Partner Project, third generation affiliate Project) in cellular system, the downstream wireless signals of multi-user is by { TDM (Time Division Multiplexing, time division multiplex), FDM (Frequency Division Multiplexing, Frequency division multiplexing), CDM (Code Division Multiplexing, code division multiplexing) in one Plant or various ways realizes.3GPP R (Release, version) 13 introduces one newly Research topic (RP-150496)-descending MUST, i.e. utilize the different of transmit power to distinguish two The downstream wireless signals of individual user.Said two user generally includes a nearly user (i.e. distance base Stand near) and a remote user (i.e. distance base station is remote), base station is the first signal for nearly user Distribute relatively low transmit power, be that the secondary signal for remote user distributes higher transmission merit simultaneously Rate.Remote user directly demodulates secondary signal (will the first signal work as noise processed), and closely user First demodulate secondary signal and (possess lower path loss in view of nearly user user farther out, decoding Successfully probability is the highest), the interference then removing secondary signal from reception signal is remained Signal, obtains the first signal to residual signal decoding, here it is SIC (Successive Interference Cancellation, successive interference cancellation) algorithm.In order to perform SIC, closely User needs to obtain the first signal and the schedule information-of secondary signal and remote user has only to obtain the The schedule information of binary signal.

It should be noted that the specific implementation of above-mentioned SIC algorithm is by UE (User Equipment, subscriber equipment) manufacturer determines voluntarily.And as the replacement of a kind of SIC or benefit Filling scheme, nearly UE (or remote UE) can use IRC (Interference Rejection Combining, AF panel merges) algorithm carries out whitening operation to the wireless signal of superposition, with Improve receptivity.IRC algorithm does not require that UE correct decoding disturbs wireless signal, it is only necessary to estimate The channel parameter of interference wireless signal.

Two kinds are used for defined in traditional LTE (Long Term Evolution, Long Term Evolution) The physical layer channel of transmission data, i.e. PDSCH (Physical Downlink Shared Channel, Physical Downlink Control Channel) PMCH (Physical Multicast Channel, believe by physical multicast Road).The former is mainly used in the transmission of mode of unicast, and the latter is mainly used in the transmission of multicast. The transmission channel that PMCH maps is MCH (Multicast Channel, Multicast Channel).At 3GPP In RAN1#81 meeting, some companies propose two PMCH being applied to MUST be overlapped mutually Between.

Summary of the invention

Inventor is found by research, and when MUST is applied to PMCH, one needs solve to ask Topic is: how to configure the PMCH resource being overlapped mutually.A kind of obvious method, is to use Existing MBSFN configuration information indicates respectively the resource shared by two PMCH.Described MBSFN Configuration information includes MBSFN-SubframeConfig IE (Infomration Element, letter Interest statement unit), PMCH-InfoLis etc., the shortcoming of the method is that information bit used is more.

For the problems referred to above, the invention discloses a kind of method in base station, wherein, including as follows Step:

-step A. sends a MBSFN-SubframeConfig IE, and first MBSFN-SubframeConfig IE instruction is reserved for descending MBSFN (Multimedia Broadcast Single Frequency Network, multimedia broadcasting SFN) subframe.

-step B. sends the second high-level signaling, and the second high-level signaling indicates the second subframe collection Close.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is by advance by described It is left the subframe composition of descending MBSFN.

-step C. sends the first signal and secondary signal in given subframe.

Wherein, described given subframe is any one subframe in the second sub-frame set.First signal Running time-frequency resource shared by shared running time-frequency resource and secondary signal is all or part of coincidence 's.First signal and secondary signal can only take MBSFN respectively in the resource mapping of physical layer RE (resource element, resource outside RS (reference signal, reference signal) Element).Second high-level signaling includes one below:

First bit sequence: be made up of M binary bits, the most each binary bits indicates Whether the multiple subframes in the first sub-frame set belong to the second sub-frame set, and described M is positive integer.

Second bit sequence: be made up of N number of binary bits, described N is first In the subframeAllocation territory of MBSFN-SubframeConfig IE value is 1 two The quantity of system bit.It is described that described N number of binary bits is respectively used to instruction The value in subframeAllocation territory be the MBSFN sub-frame indicated by the binary bits of 1 whether Belong to the second sub-frame set.

Oneth MBSFN-SubframeConfig IE is in tradition LTE system MBSFN-SubframeConfig IE。

Concrete, according to an aspect of the present invention, it is characterised in that the second high-level signaling also wraps Containing following one or more:

Bit sequence: be made up of K binary bits, described K is first Represented by the radioFrameAllocationPeriod of MBSFN-SubframeConfig IE Value.The instruction of the most each binary bits comprises the radio frames of any subframe in the second sub-frame set Position.

First power information, for EPRE (the Energy Per Resource of instruction the first signal Element, the energy of each resource element) and the EPRE of MBSFN RS between relation；

Second power information, for indicate secondary signal EPRE Yu MBSFN RS EPRE it Between relation.

In legacy system, in MBSFN sub-frame, the signal of transmission can not carry out power control, i.e. PMCH EPRE Yu the MBSFN RS of (physical Multicast Channel, Physical Multicast Channel) EPRE identical.And after introducing the MUST of MBSFN sub-frame, the first signal, and secondary signal EPRE, with the EPRE of MBSFN RS, in the case of configurable, transmission gain could be embodied. The essence of the method, i.e. based on this, provides the first signal, and secondary signal transmit power adjusts Probability, to ensure the performance gain that MUST transmits.

Concrete, according to an aspect of the present invention, it is characterised in that the second high layer information comprises Second bit sequence, the second high layer information also comprises bit sequence.

Concrete, according to an aspect of the present invention, it is characterised in that the first signal and the second letter Number reuse in following configuration information at least one:

-plmn-Index

-MBMS-NotificationConfig

-MBSFN-AreaID

-MBSFN-AreaInfoList

-MBSFNAreaConfiguration

-MBSFN-SubframeConfig

-PMCH-InfoList。

Concrete, according to an aspect of the present invention, it is characterised in that the second high-level signaling is RRC (radio resource control, RRM) signaling.

Concrete, according to an aspect of the present invention, it is characterised in that described step B also comprises Following steps B1.

-step B1. sends the first information by X2 interface, and this first information comprises one below.

First power information, for instruction the first signal EPRE Yu MBSFN RS EPRE it Between relation；

The invention discloses a kind of method in base station, wherein, comprise the steps:

-step B2. receives the first information by X2 interface, and this first information comprises one below.

Second power information, for indicate secondary signal EPRE Yu MBSFN RS EPRE it Between relation；

The invention discloses a kind of method in subscriber equipment, wherein, comprise the steps:

-step A. receives a MBSFN-SubframeConfig IE, and first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

-step B. receives the second high-level signaling, and the second high-level signaling indicates the second subframe collection Close.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is by advance by described It is left the subframe composition of descending MBSFN.

-step C. receives the first signal and secondary signal in given subframe.

Wherein, described given subframe is any one subframe in the second sub-frame set.First signal Running time-frequency resource shared by shared running time-frequency resource and secondary signal is all or part of coincidence 's.First signal and secondary signal can only take MBSFN RS respectively in the resource mapping of physical layer Outside RE.Second high-level signaling includes one below:

Concrete, according to an aspect of the present invention, it is characterised in that the second high-level signaling also wraps Containing one below:

-plmn-Index

-MBMS-NotificationConfig

-MBSFN-AreaID

-MBSFN-AreaInfoList

-MBSFNAreaConfiguration

-MBSFN-SubframeConfig

-PMCH-InfoList。

Concrete, according to an aspect of the present invention, it is characterised in that the second high-level signaling is RRC Signalling.

Concrete, according to an aspect of the present invention, it is characterised in that described step C also comprises Following steps C1:

-step C1. is based on the high-rise letter of a MBSFN-SubframeConfig IE and second Order, is demodulated secondary signal by interference elimination.

The invention discloses a kind of base station equipment, it is characterised in that this equipment comprises:

First module: transmission the oneth MBSFN-SubframeConfig IE, first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Second module: send the second high-level signaling, the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for by described The subframe composition of descending MBSFN.

Optionally, it is characterised in that the second module sends the second high-level signaling also by X2 interface.

Three module: send the first signal and secondary signal in given subframe.

Second bit sequence: be made up of N number of binary bits, described N is first In the subframeAllocation territory of MBSFN-SubframeConfig IE value is 1 two The quantity of system bit.It is described that described N number of binary bits is respectively used to instruction The value in subframeAllocation territory is that the MBSFN sub-frame indicated by the binary bits of 1 is No belong to the second sub-frame set.

The invention discloses a kind of subscriber equipment, it is characterised in that this equipment comprises:

First module: reception the oneth MBSFN-SubframeConfig IE, first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Second module: receive the second high-level signaling, the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for by described The subframe composition of descending MBSFN.

Three module: receive the first signal and secondary signal in given subframe.

As an embodiment, above-mentioned subscriber equipment also includes:

4th module: decoder module, based on the second high-level signaling, is disappeared secondary signal by interference The mode removed is demodulated.

Comparing existing public technology, the present invention has a following technical advantage:

-. reduce configuration information bit number, improve efficiency of transmission

-. utilize a MBSFN-SubframeConfig, configure only for MBSFN sub-frame, Improve configuration precision.

Accompanying drawing explanation

The detailed description that non-limiting example is made made with reference to the following drawings by reading, this The other features, objects and advantages of invention will become more apparent:

Fig. 1 shows the flow process that base station according to an embodiment of the invention configuration and UE equipment process Figure；

Fig. 2 shows base station according to an embodiment of the invention configuration and the flow chart processed；

Fig. 3 shows according to another embodiment of the invention, the knot of the processing means in base station Structure block diagram；

Fig. 4 shows according to one embodiment of present invention, the processing means in subscriber equipment Structured flowchart；

The embodiment that Fig. 5 is the present invention the second bit sequence and bit sequence is used in combination.

Detailed description of the invention

Below in conjunction with accompanying drawing, technical scheme is described in further detail, needs explanation It is that, in the case of not conflicting, the feature in embodiments herein and embodiment can be the most mutual Combination.

Fig. 1 is the embodiment of the present invention 1, the flow chart that base station configuration and subscriber equipment process.Such as accompanying drawing 1 Shown in.

Step S101: base station transmission the oneth MBSFN-SubframeConfig IE, first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

As an embodiment, a MBSFN-SubframeConfig IE comprises in TS36.331 RadioframeAllocationPeriod in MBSFN-SubframeConfig, RadioframeAllocationOffset and subframeAllocation.The first subframe collection is comprised for instruction The position of the multiple subframes closed.Concrete, i.e. when the SFN of radio frames meet right Remainder after radioframeAllocationPeriod delivery is radioframeAllocationOffset, then This radio frames comprises MBSFN sub-frame.And when MBSFN-SubframeConfig IE comprises FourFrames, then fourFrames is a bitmap, meets comprising of above-mentioned condition for instruction The particular location of MBSFN sub-frame in continuous four radio frames of MBSFN sub-frame, " 1 " i.e. represents The position of MBSFN sub-frame.When MBSFN-SubframeConfig IE comprising oneFrames, then OneFrames is a bitmap, meets that comprises MBSFN sub-frame of above-mentioned condition for instruction The particular location of MBSFN sub-frame in radio frames, " 1 " i.e. represents the position of MBSFN sub-frame.

Step S201:UE reception the oneth MBSFN-SubframeConfig IE, first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Step S102: base station sends the second high-level signaling, the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for down by described The subframe composition of row MBSFN.Wherein the second high-level signaling includes the first bit sequence or the second bit One of sequence.And include bit sequence, and the first power information, the second power information and One or more of the MBSFN configuration information of binary signal.

-the first bit sequence: be made up of M binary bits, the most each binary bits indicates Whether the multiple subframes in the first sub-frame set belong to the second sub-frame set, and described M is the most whole Number.

As an embodiment, described M binary bits is b₀, b₁, b₂..., b_M-1, wherein b_iFor indicating whether target-subframe belongs to the second sub-frame set, described target-subframe is to meet I mod M For the subframe of i, wherein I is described target-subframe index in the first sub-frame set, described I right and wrong Negative integer.As an embodiment, described in be reserved for the subframe of descending MBSFN in the first subframe Set arranges according to time order and function order.As an embodiment, described M is 6.As one Embodiment, described M is 24.As an embodiment, described M is configurable.

-the second bit sequence: be made up of N number of binary bits, described N is first Value in the subframeAllocation territory of MBSFN-SubframeConfig IE is 1 The quantity of binary bits.It is described that described N number of binary bits is respectively used to instruction The value in subframeAllocation territory is the MBSFN sub-frame indicated by the binary bits of 1 Whether belong to the second sub-frame set.

-the bit sequence: be made up of K binary bits, described K is first Represented by the radioFrameAllocationPeriod of MBSFN-SubframeConfig IE Value.The instruction of the most each binary bits comprises any subframe in the second sub-frame set The position of radio frames.

As an embodiment, if the second high-level signaling comprises the second bit sequence, then the second high-rise letter Breath also comprises bit sequence.I.e. second bit sequence and bit sequence joint instructions the second son Frame set.Here we define the first radio frames set, and it is for comprising anyon in the first sub-frame set The set of the radio frames of frame.And defining the second radio frames set, it is appointed for comprising in the second sub-frame set The set of the radio frames of meaning subframe, and the subset that it is the first radio frames set.As it is shown in figure 5, If radioframeAllocationPeriod is configured to n4, then bit sequence is by K=4 binary system Bit forms.And " 1 " represents in the first radio frames set in this bit sequence, the second radio frames The position of the radio frames that set is comprised.And " 0 " represents in the first radio frames set in bit sequence In, those are not belonging to the position of radio frames of the second radio frames set.As it is shown in figure 5, the 3rd ratio Special sequence be " 0101 ", represents from the beginning of radio frames #5, and every four radio frames appearance one belongs to the The radio frames of two radio frames set.Further, if in subframeAllocation with FourFrame corresponding for radioframeAllocationPeriod is { 110,010 111,000 110000 000111}, represents the position of subframe that the first sub-frame set comprised with this.Then Value in subframeAllocation territory be the quantity of the binary bits of 1 be 11, then N=11.And Configure based on this fourFrame, if the second bit sequence is { 010 110 101 10}, then it represents that Fig. 5 In the #2 subframe of first radio frames, the #1 of second radio frames, #2 subframe, the 3rd radio frames #1 subframe, and #6, the #7 subframe of the 4th radio frames is the subframe belonging to the second sub-frame set.

-the first power information, for the EPRE of EPRE Yu the MBSFN RS of instruction the first signal Between relation；

As an embodiment, here between the EPRE of EPRE and the MBSFN RS of the first signal The difference of EPRE of EPRE Yu the MBSFN RS that relation is the first signal, unit is dB, And be one of following set of value-8.6 ,-6 ,-4.77 ,-3 ,-1.77,0}.

As another embodiment, here the EPRE of EPRE Yu the MBSFN RS of the first signal it Between the difference of EPRE of EPRE Yu the MBSFN RS that relation is the first signal, unit is dB, And be expressed as:

-MBMS-Power::=SEQUENCE{

-PMCH1-pa ENUMERATED{dB-8.6,dB-6,dB-4dot77, dB-3,dB-1dot77,dB0}

As another sub-embodiment, if indicating without this first power information, then it is assumed that the first signal The difference of the EPRE of EPRE Yu MBSFN RS is 0.

As another embodiment, here the EPRE of EPRE Yu the MBSFN RS of the first signal it Between the ratio of EPRE of EPRE Yu the MBSFN RS that relation is the first signal, and be with next One of class value { 0.125,0.25,0.325,0.5,0.75,1}.

As another embodiment, if indicating without this first power information, then it is assumed that the first signal The ratio of the EPRE of EPRE Yu MBSFN RS is 1.

-the second power information, for indicating the EPRE of EPRE Yu the MBSFN RS of secondary signal Between relation；

As an embodiment, here between the EPRE of EPRE and the MBSFN RS of secondary signal The difference of EPRE of EPRE Yu the MBSFN RS that relation is secondary signal, unit is dB, And be one of following set of value-8.6 ,-6 ,-4.77 ,-3 ,-1.77,0}.

As another embodiment, here the EPRE of EPRE Yu the MBSFN RS of secondary signal it Between the difference of EPRE of EPRE Yu the MBSFN RS that relation is secondary signal, unit is dB, And be expressed as:

MBMS-Power::=SEQUENCE{

PMCH2-pa ENUMERATED{dB-8.6,dB-6,dB-4dot77, dB-3,dB-1dot77,dB0}

As another sub-embodiment, if indicating without this second power information, then it is assumed that the first signal The difference of the EPRE of EPRE Yu MBSFN RS is 0.

As another embodiment, here the EPRE of EPRE Yu the MBSFN RS of secondary signal it Between the ratio of EPRE of EPRE Yu the MBSFN RS that relation is secondary signal, and be with next One of class value { 0.125,0.25,0.325,0.5,0.75,1}.

As another embodiment, if indicating without this second power information, then it is assumed that secondary signal The ratio of the EPRE of EPRE Yu MBSFN RS is 1.

The MBSFN configuration information of-secondary signal

As an embodiment, the MBSFN configuration information of this secondary signal only comprises secondary signal MCS configuration information.Concrete, this MCS configuration information comprises one or more of information:

-control channel MCS information；

-data channel MCS information；

Here, control channel MCS information and represent transmission in the physical channel that secondary signal physical layer carries The MCS of the physical resource that MCCH is corresponding, its value is { in 2,7,13,19}, corresponding TS 36.213 middle I_MCSValue.

Data channel MCS information represents to be transmitted in the physical channel that secondary signal physical layer carries The MCS of the physical resource that MTCH is corresponding, concrete, it comprises

-data channel the oneth MCS information, instruction normal mode under MCS, its value be 0 to A value in 28, corresponds to the I in the Table 7.1.7.1-1 in TS 36.213_MCS。

-data channel the 2nd MCS information, the MCS under instruction higerOrder mode, its value is 0 A value in 27, corresponds to the I in the Table 7.1.7.1-1A in TS 36.213_MCS。

As another embodiment, the MBSFN configuration information of this secondary signal only comprises following one Or much information:

-signallingMCS-r13 IE

-dataMCS-r13 IE:

Here, transmit in signallingMCS-r13 IE represents the physical channel that secondary signal physical layer carries The MCS of the physical resource that MCCH is corresponding, its value is { in 2,7,13,19}, corresponding TS 36.213 middle I_MCSValue.

DataMCS-r13 IE represents transmission MTCH pair in the physical channel that secondary signal physical layer carries The MCS of the physical resource answered, concrete, it comprises

-normal-r13 IE, the MCS under instruction normal mode, its value is in 0 to 28 Individual value, corresponds to the I in the Table 7.1.7.1-1 in TS 36.213_MCS

-higerOrder-r13 IE, the MCS under instruction higerOrder mode, its value is 0 to 27 In a value, correspond to the I in the Table 7.1.7.1-1A in TS 36.213_MCS。

As another embodiment, the MBSFN configuration information of secondary signal, with existing following MBMS Configuration information is compared, and outside the few MBSFN-SubframeConfig of deferrization, also lacks PMCH-InfoList In plmn-Index

-MBMS-NotificationConfig

-MBSFN-AreaID

-MBSFN-AreaInfoList

-MBSFNAreaConfiguration

-MBSFN-SubframeConfig

-PMCH-InfoList。

Step S202:UE receives the second high-level signaling, and the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for down by described The subframe composition of row MBSFN.Wherein the second high-level signaling includes the first bit sequence or the second bit One of sequence.And include bit sequence, and the first power information, the second power information and One or more of the MBSFN configuration information of binary signal.

-the second bit sequence: be made up of N number of binary bits, described N is first In the subframeAllocation territory of MBSFN-SubframeConfig IE value is 1 two The quantity of system bit.It is described that described N number of binary bits is respectively used to instruction The value in subframeAllocation territory is the MBSFN sub-frame indicated by the binary bits of 1 Whether belong to the second sub-frame set.

-the bit sequence: be made up of K binary bits, described K is first Represented by the radioFrameAllocationPeriod of MBSFN-SubframeConfig IE Value.The instruction of the most each binary bits comprises the nothing of any subframe in the second sub-frame set The position of line frame.

The MBSFN configuration information of-secondary signal.

Step S103: base station sends the first signal and secondary signal in given subframe.Wherein, described give Stator frame is any one subframe in the second sub-frame set.Running time-frequency resource shared by first signal and Running time-frequency resource shared by secondary signal is all or part of coincidence.First signal and secondary signal Resource in physical layer maps the RE that can only take MBSFN sub-frame RS respectively.

Step S203:UE receives the first signal and secondary signal in given subframe.Wherein, described give Stator frame is any one subframe in the second sub-frame set.Running time-frequency resource shared by first signal and Running time-frequency resource shared by secondary signal is all or part of coincidence.First signal and secondary signal Resource in physical layer maps the RE that can only take respectively outside MBSFN sub-frame RS.

Step S104.UE based on a MBSFN-SubframeConfig IE and the second high-level signaling, Secondary signal is demodulated by interference elimination.

Fig. 2 is the embodiment of the present invention 2, the flow chart that base station configuration and subscriber equipment process.Such as accompanying drawing 2 Shown in.

Step S111. base station sends the first information by X2 interface, and this first information comprises one below.

Concrete, as an embodiment, the described first information also comprises following one or more information:

-the bit sequence: be made up of K binary bits, described K is first Represented by the radioFrameAllocationPeriod of MBSFN-SubframeConfig IE Value；Or for fix positive integer independent of the one of radioFrameAllocationPeriod.Wherein The instruction of each binary bits comprises the position of the radio frames of any subframe in the second sub-frame set Put.

Step S121. base station receives the first information by X2 interface, and this first information comprises with purgation One.

Fig. 3 is the embodiment of the present invention 3, the structured flowchart of the processing means in base station.Such as accompanying drawing 3 Shown in.Base station apparatus 300 is made up of dispensing device 301, dispensing device 302 and dispensing device 303.

Dispensing device 301 sends a MBSFN-SubframeConfig IE, and first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Dispensing device 302 sends the second high-level signaling, and the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for down by described The subframe composition of row MBSFN.Second high-level signaling includes one below:

Concrete, as an embodiment, this second high-level signaling also comprises following one or more:

Dispensing device 303 sends the first signal and secondary signal in given subframe.

Wherein, described given subframe is any one subframe in the second sub-frame set.First signal institute Running time-frequency resource shared by the running time-frequency resource taken and secondary signal is all or part of coincidence.The One signal and secondary signal the resource of physical layer map can only take respectively MBSFN sub-frame RS it Outer RE.

Concrete, as an embodiment, dispensing device 302 optionally sends the by X2 interface One information.

Fig. 4 is the embodiment of the present invention 4, the structured flowchart of the processing means in UE.Such as accompanying drawing 4 Shown in.UE device 400, by receiving device 401, receives device 402, receives device 403 and demodulation Device 404 forms.

Receive device 401 and receive a MBSFN-SubframeConfig IE, first MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Receiving device 402 and receive the second high-level signaling, the second high-level signaling indicates the second sub-frame set. Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is to be reserved for down by described The subframe composition of row MBSFN.Second high-level signaling includes one below:

Receive device 403 and receive the first signal and secondary signal in given subframe.

Demodulating equipment 404, based on a MBSFN-SubframeConfig IE and the second high-level signaling, Secondary signal is demodulated by interference elimination.

As an embodiment, if the second high-level signaling comprises the second bit sequence, then the second high-rise letter Breath also comprises bit sequence.I.e. second bit sequence and bit sequence joint instructions the second son Frame set.If as it is shown in figure 5, radioframeAllocationPeriod is configured to n4, then the 3rd ratio Special sequence is made up of K=4 binary bits.And " 1 " expression is comprising first in this bit sequence In the radio frames of any subframe of sub-frame set, comprise the radio frames of any subframe of the second sub-frame set Position.And " 0 " represents the radio frames in any subframe comprising the first sub-frame set in bit sequence In, do not comprise the position of the radio frames of any subframe of the second sub-frame set.As it is shown in figure 5, this Bit sequence is " 0101 ", represents from the beginning of radio frames #5, and a bag occur in every four radio frames Radio frames containing the subframe of the second sub-frame set.Further, if in subframeAllocation with FourFrame corresponding for radioframeAllocationPeriod is { 110,010 111,000 110000 The quantity of the binary bits that value is 1 in 000111}, i.e. subframeAllocation territory is 11, Then N=11.And configure based on this fourFrame, if the second bit sequence be 010 110 101 10}, The then #2 subframe of first radio frames in expression Fig. 5, the #1 of second radio frames, #2 subframe, the The #1 subframe of three radio frames, and #6, the #7 subframe of the 4th radio frames belongs to the second sub-frame set.

It should be understood that the above embodiment of the present invention can pass through software, hardware or software and hardware Both are implemented in combination in.Such as, the base station in above-described embodiment and various groups within subscriber equipment Part can be realized by multiple device, and these devices include but not limited to: analog circuit device, number Word circuit devcie, Digital Signal Processing (DSP) circuit, programmable processor, special IC (ASIC), field programmable gate array (FPGA), PLD (CPLD), etc..

In this application, " base station " refers to that the movement with bigger transmitting power and wider area coverage is led to Letter data and control switching point (CSP), the function such as including resource allocation scheduling, data receiver transmission." user Equipment " refer to customer mobile terminal, such as include mobile phone, notebook etc. can with base station or Micro-base station carries out the terminal unit of radio communication.

Additionally, embodiments of the invention disclosed herein can realize on computer program. More specifically, this computer program is following a kind of product: have computer-readable medium, On computer-readable medium, coding has computer program logic, when performing on the computing device, and this meter Calculate machine program logic and relevant operating with the technique scheme realizing the present invention is provided.When calculating system When performing at least one processor of system, it is real that computer program logic makes processor perform the present invention Execute the operation (method) described in example.This set of the present invention is typically provided as arranging or encoding in example As the software on the computer-readable medium of light medium (such as CD-ROM), floppy disk or hard disk etc., Code and/or other data structures or the most one or more ROM or RAM or PROM core Downloadable software figure in firmware on sheet or other media of microcode or one or more module Picture, shared data bank etc..Software or firmware or this configuration may be installed on calculating equipment, so that One or more processors in calculating equipment perform the technical scheme described by the embodiment of the present invention.

The present invention is shown already in connection with the preferred embodiments of the present invention although above, but this area Skilled person will appreciate that, without departing from the spirit and scope of the present invention, can be to this Bright carry out various amendment, replace and change.Therefore, the present invention should not limited by above-described embodiment, And should be limited by claims and equivalent thereof.

Claims

1. the method in base station, wherein, comprises the steps:

-step A. sends a MBSFN-SubframeConfig IE, and a MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

-step B. sends the second high-level signaling, and the second high-level signaling indicates the second sub-frame set.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is made up of the described subframe being reserved for descending MBSFN.

-step C. sends the first signal and secondary signal in given subframe.

Wherein, described given subframe is any one subframe in the second sub-frame set.Running time-frequency resource shared by first signal and the running time-frequency resource shared by secondary signal are all or part of coincidences.First signal and secondary signal map the RE that can only take respectively outside MBSFN RS in the resource of physical layer.Second high-level signaling includes one below:

-the first bit sequence: be made up of M binary bits, the most each binary bits indicates whether the multiple subframes in the first sub-frame set belong to the second sub-frame set, and described M is positive integer.

-the second bit sequence: be made up of N number of binary bits, described N is the quantity of the binary bits that value is 1 in the subframeAllocation territory of a MBSFN-SubframeConfig IE.Described N number of binary bits is respectively used to indicate whether the MBSFN sub-frame indicated by the binary bits that value is 1 in described subframeAllocation territory belongs to the second sub-frame set.

Method the most according to claim 1, it is characterised in that the second high-level signaling also comprises following one or more:

-the bit sequence: be made up of K binary bits, described K is the value represented by radioFrameAllocationPeriod of a MBSFN-SubframeConfig IE.The instruction of the most each binary bits comprises the position of the radio frames of any subframe in the second sub-frame set.

-the first power information, the relation between the EPRE of EPRE and the MBSFN RS of instruction the first signal；

-the second power information, the relation between the EPRE indicating EPRE and the MBSFN RS of secondary signal.

Method the most according to claim 1, the second high layer information comprises the second bit sequence, and the second high layer information also comprises bit sequence.

Method the most according to claim 1, it is characterised in that the first signal and secondary signal reuse in following configuration information at least one:

-plmn-Index

-MBMS-NotificationConfig

-MBSFN-AreaID

-MBSFN-AreaInfoList

-MBSFNAreaConfiguration

-MBSFN-SubframeConfig

-PMCH-InfoList。

Method the most according to claim 1, it is characterised in that the second high-level signaling is RRC signaling.

Method the most according to claim 1, it is characterised in that described step B also comprises the steps of B1.

-step B1. sends the first information by X2 interface, and the first information comprises at least one of:

7. the method in base station, wherein, comprises the steps:

Step B2. receives the first information by X2 interface, and this first information comprises at least one of.

8. the method in subscriber equipment, wherein, comprises the steps:

-step A. receives a MBSFN-SubframeConfig IE, and a MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

-step B. receives the second high-level signaling, and the second high-level signaling indicates the second sub-frame set.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is made up of the described subframe being reserved for descending MBSFN.

-step C. receives the first signal and secondary signal in given subframe.

Wherein, described given subframe is any one subframe in the second sub-frame set.Running time-frequency resource shared by first signal and the running time-frequency resource shared by secondary signal are all or part of coincidences.First signal and secondary signal map the RE that can only take respectively outside MBSFN RS in the resource of physical layer.

Second high-level signaling includes one below:

Method the most according to claim 8, it is characterised in that the second high-level signaling also comprises one below:

Method the most according to claim 8, the second high layer information comprises the second bit sequence, and the second high layer information also comprises bit sequence.

11. methods according to claim 8, it is characterised in that the first signal and secondary signal reuse in following configuration information at least one:

-plmn-Index

-MBMS-NotificationConfig

-MBSFN-AreaID

-MBSFN-AreaInfoList

-MBSFNAreaConfiguration

-MBSFN-SubframeConfig

-PMCH-InfoList。

12. methods according to claim 8, it is characterised in that described step C also comprises the steps of C1.

Secondary signal, based on a MBSFN-SubframeConfig IE and the second high-level signaling, is demodulated by step C1. by interference elimination.

13. 1 kinds of base station equipments, it is characterised in that this equipment comprises:

First module: for sending a MBSFN-SubframeConfig IE, a MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Second module: for sending the second high-level signaling, the second high-level signaling indicates the second sub-frame set.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is made up of the described subframe being reserved for descending MBSFN.

Three module: for sending the first signal and secondary signal in given subframe.

14. 1 kinds of subscriber equipmenies, it is characterised in that this equipment comprises:

First module: for receiving a MBSFN-SubframeConfig IE, a MBSFN-SubframeConfig IE instruction is reserved for the subframe of descending MBSFN.

Second module: for receiving the second high-level signaling, the second high-level signaling indicates the second sub-frame set.Second sub-frame set is the subset of the first sub-frame set.First sub-frame set is made up of the described subframe being reserved for descending MBSFN.

Three module: for receiving the first signal and secondary signal in given subframe.

Second high-level signaling includes one below: