CN104995975B

CN104995975B - A kind of method and apparatus of interference coordination

Info

Publication number: CN104995975B
Application number: CN201380002230.5A
Authority: CN
Inventors: 吴海; 吴作敏; 张宁波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2019-06-28
Anticipated expiration: 2033-06-19
Also published as: CN104995975A; WO2014201644A1

Abstract

The embodiment of the present invention provides a kind of method and device of interference coordination, is related to field of communication technology, effectively reduces the interference in data transmission procedure in more minizones and cell.This method specifically includes: the first user equipment obtains the first mapping relations；Receive the serial number for the demodulated reference signal that first base station is sent；Receive the Downlink Control Information that first base station is sent；Downlink Control Information is detected, channel indicated value is obtained；According to Downlink Control Information, the number of code block is judged；When the number of code block is one, detection Downlink Control Information obtains the new data indicated value of the second code block；When the instruction of new data indicated value uses the demodulated reference signal scrambler sequence of limit length, according to channel indicated value, the serial number of the first mapping relations and demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length；According to channel estimation value, demodulating and decoding is carried out to transmission data.The present invention is applied in information transmission.

Description

A kind of method and apparatus of interference coordination

Technical field

The present invention relates to field of communication technology more particularly to a kind of method and apparatus of interference coordination.

Background technique

Long term evolution plan (Long Term Evolution, abbreviation LTE) project is the 3rd generation communication system (The Third Generation Telecommunication, abbreviation 3G) evolution, improve and enhance the aerial access skill of 3G Art, using orthogonal frequency division multiplexer (Orthogonal Frequency Division Multiplexing, abbreviation OFDM) and to defeated multi output (Multi ple Input and Multiple output, abbreviation MIMO) as in LTE system The sole criterion of wireless network evolution.In LTE system, when base station needs to send data to user, PDCCH can be passed through simultaneously Channel and PDSCH channel to user send Downlink Control Information (Downlink control information, abbreviation DCI) and Data.Carry demodulation Physical Downlink Shared Channel (Physical Downlink Shared Channel, abbreviation inside DCI The information such as information needed for the data in PDSCH), such as modulation coding scheme, resource distribution location.

LTE defines a variety of transmission modes and is total to downlink data transmission, and base station first is configured at current UE by high-level signaling Base station is can choose on PDCCH channel using a certain DCI inside the transmission mode when which kind of transmission mode, scheduling Format needs two kinds of DCI that may be present of blind examination on PDCCH channel for UE, to pass through the DCI detected Further demodulate the information of data on PDSCH.

DCI format 2C and TM10 is generally based on using TM9 in the prior art and is based on the corresponding biography of DCI format 2D Defeated mode, both transmission modes can pass most 8 layers of data, each layer of data transmission is all for PDSCH every time A corresponding antenna port.For demodulated reference signal (Demodulation Reference Signal, abbreviation DMRS) pilot tone It is present in each data resource block, is used for channel estimation, data are demodulated.But due to the DMRS pilot tone of each cell Occupy identical resource location, therefore when the corresponding antenna port of a certain layer to some UE carries out channel estimation, it can be by To the interference of adjacent cell, this cell neighbour user or other layers of this user of antenna port, in the prior art by using antenna end Mouthful orthogonal method is come the interference that generates when avoiding channel estimation.But the method in the prior art for avoiding interference, it is avoiding In terms of the interference of adjacent cell and this cell neighbour user, it is only applicable to two users or two minizones, the interference that can evade It is limited.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus of interference coordination, effectively reduces in data transmission procedure Interference in more minizones and cell.

In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that

In a first aspect, providing a kind of method of interference coordination, comprising:

First user equipment obtains the first mapping relations；Wherein, first mapping relations are channel indicated value, antenna end Corresponding relationship between mouth, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the serial number of demodulated reference signal；

Receive the serial number for the demodulated reference signal that the first base station is sent；

Receive the Downlink Control Information that the first base station is sent；It wherein, include: first yard in the Downlink Control Information The information of the information of block and the second code block；

The Downlink Control Information is detected, the channel indicated value is obtained；

According to the Downlink Control Information, the number of code block is judged；

When the number of the code block is one, the new data instruction that the Downlink Control Information obtains the second code block is detected Value；

When new data indicated value instruction uses the demodulated reference signal scrambler sequence of limit length, according to the letter The serial number of road indicated value, first mapping relations and the demodulated reference signal, uses the demodulated reference signal of preset length Scrambler sequence carries out channel estimation；

According to channel estimation value, demodulating and decoding is carried out to the transmission data.

In the first possible implementation, with reference to first aspect, first user equipment obtains the first mapping and closes System includes:

Information is indicated according to scheduling, obtains first mapping relations.

In the second possible implementation, with reference to first aspect or the first possible implementation, the method Further include:

When the number of the code block is two, worked as according to the Downlink Control Information and first mapping relations acquisition The preceding antenna port used and transcoding mark；

According to the antenna port, the serial number of the transcoding mark and the demodulated reference signal, channel estimation is carried out；

In the third possible implementation, with reference to first aspect or any of the above-described possible implementation, described According to the channel indicated value, the serial number of first mapping relations and the demodulated reference signal, the demodulation of preset length is used Reference signal scrambler sequence carries out channel estimation, comprising:

When new data indicated value instruction uses the demodulated reference signal scrambler sequence of limit length, according to the letter Road indicated value and first mapping relations obtain currently used antenna port and transcoding mark；

According to the antenna port, the serial number of the transcoding mark and the demodulated reference signal, preset length is used Demodulated reference signal scrambler sequence carries out channel estimation.

In the fourth possible implementation, described according to the antenna end in conjunction with the third possible implementation Mouthful, the transcoding mark and the demodulated reference signal serial number, using preset length demodulated reference signal scrambler sequence into Before row channel estimation, further includes:

The resource location being arranged in the currently used antenna port and its for removing the currently used antenna port Transmission data are not sent on the identical resource location of resource location in its antenna port.

In a fifth possible implementation, in conjunction with the third possible implementation or the 4th kind of possible realization side Formula, the method also includes:

When new data indicated value instruction does not use the demodulated reference signal scrambler sequence of limit length, according to described Downlink Control Information and first mapping relations obtain currently used antenna port and transcoding mark；

In a sixth possible implementation, with reference to first aspect or any of the above-described possible implementation,

First mapping relations include: in a code block, and the new data of the second code block is designated as without using limit length Demodulated reference signal scrambler sequence when the corresponding antenna port of channel indicated value, the data flow number of plies and transcoding mark and second The new data of code block is designated as the corresponding antenna of channel indicated value when the demodulated reference signal scrambler sequence using limit length Port, the data flow number of plies and transcoding mark and two code blocks in, the corresponding antenna port of channel indicated value, the data flow number of plies and Transcoding mark；Wherein, first mapping relations are indicated in the form of mapping table.

In the 7th kind of possible implementation, in conjunction with the 6th kind of possible implementation,

The new data of second code block is designated as the channel when demodulated reference signal scrambler sequence using limit length The corresponding antenna port of indicated value includes: the corresponding identical antenna port of resource location or all antenna ports.

Second aspect provides a kind of method of interference coordination, comprising:

First base station obtains the first mapping relations；Wherein, first mapping relations be channel indicated value, antenna port, Mapping relations between the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the serial number of demodulated reference signal；

Receive the first information that any second base station is sent；Wherein the first information includes but is not limited to: antenna port, The serial number and sub-frame set of demodulated reference signal；The sub-frame set user indicate any second base station send data when It carves；

According to the first information and first mapping relations, the second mapping relations are obtained；Wherein, second mapping Relationship is the mapping relations between the serial number and sub-frame mode of cell ID, antenna port, demodulated reference signal；

The serial number of the demodulated reference signal is sent to the first user equipment；

Downlink Control Information is sent to first user equipment, in order to which first user equipment is according to described first The serial number of mapping relations, the Downlink Control Information and the demodulated reference signal carries out channel estimation to transmission data, obtains State no interference signal.

In the first possible implementation, with reference to first aspect,

In the second possible implementation, in conjunction with the first possible implementation,

In the third possible implementation, in conjunction with second aspect,

The serial number of all demodulated reference signals in second mapping relations is all the same.

The third aspect provides a kind of first user equipment, comprising:

First acquisition unit, for obtaining the first mapping relations；Wherein, first mapping relations be channel indicated value, Corresponding relationship between antenna port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate demodulated reference signal Serial number；

Receiving unit, for receiving the serial number for the demodulated reference signal that the first base station is sent；

The receiving unit is also used to receive the Downlink Control Information that the first base station is sent；Wherein, the downlink control It include: the information of the first code block and the information of the second code block in information processed；

First acquisition unit is also used to detect the Downlink Control Information, obtains the channel indicated value；

Judging unit, for judging the number of code block according to the Downlink Control Information；

First processing units obtain for when the number of the code block is one, detecting the Downlink Control Information The new data indicated value of two code blocks；

The first processing units are also used to believe when new data indicated value instruction using the demodulation reference of limit length When number scrambler sequence, according to the channel indicated value, the serial number of first mapping relations and the demodulated reference signal, use The demodulated reference signal scrambler sequence of preset length carries out channel estimation；

The first processing units, are also used to according to the channel estimation value, carry out demodulating and decoding to the transmission data.

In the first possible implementation, in conjunction with the third aspect, the first acquisition unit is specifically used for:

In the second possible implementation, in conjunction with the third aspect or the first possible implementation, described first User equipment further include:

Second acquisition unit, for when the number of the code block is two, according to the Downlink Control Information and described First mapping relations obtain currently used antenna port and transcoding mark；

The second processing unit is also used to according to the antenna port, transcoding mark and the demodulated reference signal Serial number carries out channel estimation；

Described the second processing unit, is also used to according to channel estimation value, carries out demodulating and decoding to the transmission data.

In the third possible implementation, in conjunction with the third aspect or any of the above-described possible implementation, described One processing unit includes:

Subelement is obtained, for using the demodulated reference signal scrambling code sequence of limit length when new data indicated value instruction When column, currently used antenna port and transcoding are obtained according to the channel indicated value and first mapping relations and is identified；

Handle subelement, for according to the antenna port, the transcoding mark and the demodulated reference signal serial number, Channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

In the fourth possible implementation, in conjunction with the third possible implementation, first user equipment is also Include:

Setting unit, resource location for being arranged in the currently used antenna port with except described currently used Transmission data are not sent on the identical resource location of resource location in other antenna ports of antenna port.

In a fifth possible implementation, in conjunction with the third possible implementation or the 4th kind of possible realization side Formula, first user equipment further include:

Third acquiring unit, for being disturbed when new data indicated value instruction without using the demodulated reference signal of limit length When code sequence, currently used antenna port and transcoding mark are obtained according to the Downlink Control Information and first mapping relations Know；

Third processing unit, for the sequence according to the antenna port, the transcoding mark and the demodulated reference signal Number, carry out channel estimation；

The third processing unit, is also used to according to channel estimation value, carries out demodulating and decoding to the transmission data.

In a sixth possible implementation, in conjunction with the third aspect or any of the above-described possible implementation,

Fourth aspect provides a kind of first base station, comprising:

Acquiring unit, for obtaining the first mapping relations；Wherein, first mapping relations are channel indicated value, antenna Mapping relations between port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the sequence of demodulated reference signal Number；

Receiving unit, the first information sent for receiving any second base station；Wherein the first information includes but not It is limited to: the serial number and sub-frame set of antenna port, demodulated reference signal；The sub-frame set user indicates any second base At the time of transmission data of standing；

The acquiring unit is also used to obtain the second mapping according to the first information and first mapping relations and close System；Wherein, second mapping relations are between the serial number and sub-frame mode of cell ID, antenna port, demodulated reference signal Mapping relations；

Transmission unit, for sending the serial number of the demodulated reference signal to the first user equipment；

The transmission unit is also used to send Downlink Control Information to first user equipment, in order to described first User equipment is according to the serial number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission number According to channel estimation is carried out, state no interference signal is obtained.

In the first possible implementation, in conjunction with fourth aspect,

In the third possible implementation, in conjunction with fourth aspect,

5th aspect, provides a kind of first user equipment, comprising: at least one processor, memory, communication interface and total Line, at least one described processor, memory connect by bus with communication interface and complete mutual communication, the storage Device is for storing program code, in which:

The processor, for calling the program code in memory, to execute following operation:

The first mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are channel Mapping relations between indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate demodulation ginseng Examine the serial number of signal；

The serial number for the demodulated reference signal that the first base station is sent is received by least one described communication interface；

The Downlink Control Information that the first base station is sent is received by least one described communication interface；Wherein, described It include: the information of the first code block and the information of the second code block in Downlink Control Information；

In the first possible implementation, in conjunction with the 5th aspect, the processor is specifically used for:

Information is indicated according to scheduling, and first mapping relations are obtained by least one described communication interface.

In the second possible implementation, in conjunction with the 5th aspect or the first possible implementation, the processing Device is also used to:

In the third possible implementation, in conjunction with the 5th aspect or any of the above-described possible implementation, the place Reason implement body is used for:

In the fourth possible implementation, in conjunction with the third possible implementation, the processor is also used to:

In a fifth possible implementation, in conjunction with the third possible implementation or the 4th kind of possible realization side Formula, the processor are also used to:

In a sixth possible implementation, in conjunction with the 5th aspect or any of the above-described possible implementation,

6th aspect, provides a kind of first base station, comprising: at least one processor, memory, communication interface and bus, At least one described processor, memory connect by bus with communication interface and complete mutual communication, the memory For storing program code, in which:

The first information that any second base station is sent is received by least one described communication interface；Wherein first letter Breath includes but is not limited to: the serial number and sub-frame set of antenna port, demodulated reference signal；Described in the sub-frame set user instruction At the time of any second base station sends data；

According to the first information and first mapping relations, second is obtained by least one described communication interface and is reflected Penetrate relationship；Wherein, second mapping relations are cell ID, antenna port, the serial number of demodulated reference signal and sub-frame mode Between mapping relations；

The serial number of the demodulated reference signal is sent to the first user equipment by least one described communication interface；

Downlink Control Information is sent to first user equipment, in order to described by least one described communication interface First user equipment is according to the serial number of first mapping relations, the Downlink Control Information and the demodulated reference signal to biography Transmission of data carries out channel estimation, obtains state no interference signal.

In the first possible implementation, in conjunction with the 6th aspect,

In the third possible implementation, in conjunction with the 5th aspect,

The method and apparatus for the interference coordination that the embodiment of the present invention provides, by redefining channel indicated value and antenna Mapping relations between port, the data flow number of plies and transcoding mark, use the demodulated reference signal scrambler sequence pair of preset length It transmits data and carries out demodulating and decoding, effectively reduce the interference in data transmission procedure in more minizones and cell.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of flow diagram of the method for interference coordination that the embodiment of the present invention provides；

Fig. 2 is the flow diagram of the method for another interference coordination that the embodiment of the present invention provides；

Fig. 3 is the flow diagram of the method for another interference coordination that the embodiment of the present invention provides；

Fig. 4 is the flow diagram of the method for another interference coordination that the embodiment of the present invention provides；

Fig. 5 is the structural schematic diagram for the first user equipment of one kind that the embodiment of the present invention provides；

Fig. 6 is the structural schematic diagram for the first user equipment of another kind that the embodiment of the present invention provides；

Fig. 7 is the structural schematic diagram for another the first user equipment that the embodiment of the present invention provides；

Fig. 8 is the structural schematic diagram for another the first user equipment that the embodiment of the present invention provides；

Fig. 9 is a kind of structural schematic diagram for first base station that the embodiment of the present invention provides；

Figure 10 is the structural schematic diagram for the first user equipment of one kind that another embodiment of the present invention provides；

Figure 11 is the structural schematic diagram for another first base station that the embodiment of the present invention provides；

Figure 12 is a kind of structural schematic diagram of the system for interference coordination that the embodiment of the present invention provides.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The embodiment of the present invention provides a kind of method of interference coordination, shown referring to Fig.1, comprising the following steps:

101, the first user equipment obtains the first mapping relations.

Wherein, the first mapping relations are the correspondence between channel indicated value, antenna port, the data flow number of plies and transcoding mark Relationship；Transcoding identifies the serial number for being used to indicate demodulated reference signal.

102, the first user equipment receives the serial number for the demodulated reference signal that first base station is sent.

103, the first user equipment receives the Downlink Control Information that first base station is sent.

Wherein, include: in Downlink Control Information the first code block information and the second code block information.

104, the first user equipment detects Downlink Control Information, obtains channel indicated value.

105, the first user equipment judges the number of code block according to Downlink Control Information.

106, when the number of code block is one, the first user equipment detects Downlink Control Information and obtains the new of the second code block Data indicated value.

107, when the instruction of new data indicated value uses the demodulated reference signal scrambler sequence of limit length, the first user is set The standby serial number according to channel indicated value, the first mapping relations and demodulated reference signal, uses the demodulated reference signal of preset length Scrambler sequence carries out channel estimation.

108, the first user equipment carries out demodulating and decoding to transmission data according to channel estimation value.

The method for the interference coordination that the embodiment of the present invention provides, by redefine channel indicated value and antenna port, Mapping relations between the data flow number of plies and transcoding mark, using the demodulated reference signal scrambler sequence of preset length to transmission number According to demodulating and decoding is carried out, the interference in data transmission procedure in more minizones and cell is effectively reduced.

The embodiment of the present invention provides a kind of method of interference coordination, referring to shown in Fig. 2, comprising the following steps:

201, first base station obtains the first mapping relations.

Wherein, the first mapping relations are the mapping between channel indicated value, antenna port, the data flow number of plies and transcoding mark Relationship；Transcoding identifies the serial number for being used to indicate demodulated reference signal.

202, first base station receives the first information that any second base station is sent.

Wherein, the first information includes but is not limited to: the serial number and sub-frame set of antenna port, demodulated reference signal；Subframe At the time of aggregate user indicates that any second base station sends data.

203, first base station obtains the second mapping relations according to the first information with the first mapping relations.

Wherein, the second mapping relations are between the serial number and sub-frame mode of cell ID, antenna port, demodulated reference signal Mapping relations.

204, first base station sends the serial number of demodulated reference signal to the first user equipment.

205, first base station sends Downlink Control Information to the first user equipment, in order to which the first user equipment is according to first The serial number of mapping relations, Downlink Control Information and demodulated reference signal carries out channel estimation to transmission data, obtains noiseless letter Number.

The embodiment of the present invention provides a kind of method of interference coordination, and being suitable for transmission mode is TM9 or TM10, works as code block When number is one, referring to shown in Fig. 3, comprising the following steps:

301, first base station obtains the first mapping relations.

Specifically, the first mapping relations include: in a code block, the new data of the second code block is designated as without using restriction length The corresponding antenna port of channel indicated value, the data flow number of plies when demodulated reference signal scrambler sequence of degree and transcoding mark and the The new data of two code blocks is designated as the corresponding day of channel indicated value when the demodulated reference signal scrambler sequence using limit length In line end mouth, the data flow number of plies and transcoding mark and two code blocks, the corresponding antenna port of channel indicated value, the data flow number of plies It is identified with transcoding；Wherein, the first mapping relations are indicated in the form of mapping table.

The new data of second code block is designated as the channel instruction when demodulated reference signal scrambler sequence using limit length Being worth corresponding antenna port includes: the corresponding identical antenna port of resource location or all antenna ports.

The new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length in reality of the invention 1 can be designated as with the new data of the second code block to indicate by applying in example；The new data of second code block is designated as without using restriction length The demodulated reference signal scrambler sequence of degree can be designated as 0 with the new data of the second code block in an embodiment of the present invention come table Show.Channel instruction in relation mapping table in the present embodiment, when can be designated as 0 or 1 with the new data of second code block Corresponding relationship between value, antenna port, the data flow number of plies and transcoding mark.

First mapping relations are that operator is pre-configured in first base station according to the actual demand of user.Due to TM9 With defined in TM10 transmission mode when user is scheduled in both transmission modes, when carrying out channel estimation, pilot tone will make With one or more of antenna port 7~14.Also, antenna port 7,8,11 and 13 uses identical resource location.Antenna Port 9,10,12 and 14 using just as resource location.Therefore, when user terminal uses antenna port 7,8,11 and 13, first The structure of the relation mapping table of mapping relations instruction can be as follows:

Certainly, when user terminal uses antenna port 9,10,12 and 14, the structure of the first mapping table can be with Are as follows:

The structure of above two first mapping table suitable for system there are four user equipment or four cells the case where.

Optionally, the structure of the first relation mapping table can also be as shown in the table.At this point, having suitable for system more than four A user equipment or be more than four cells the case where；

After obtaining the first mapping relations, base station can obtain the data flow of oneself according to obtained channel indicated value The number of plies, antenna port and transcoding mark.

302, first base station receives the first information that any second base station is sent.

Wherein, the first information includes but is not limited to: the serial number and sub-frame set of antenna port, demodulated reference signal；Subframe At the time of aggregate user indicates that any second base station sends data.The serial number of all demodulated reference signals in second mapping relations It is all the same

Specifically, the second base station can send the first information by X2 interface, S1 interface.Certainly, however it is not limited to which this two A interface can select interface appropriate to send information in actual application scenarios according to specific demand.

303, first base station obtains the second mapping relations according to the first information with the first mapping relations.

There are four when user equipment or four cells in system, the structure of the second mapping table can be as follows:

When having eight user equipmenies or four cells in system, the structure of the second mapping table can be as follows:

Wherein, in above-mentioned two second mapping table, the serial number of the demodulated reference signal in each mapping table only has one A, in the time as defined in sub-frame mode, base station uses the serial number of identical demodulated reference signal, according to the antenna respectively analyzed Port is scheduled user equipment corresponding to base station.The sub-frame mode that is merely illustrative in the mapping table is with 10 for week Phase, it is certainly not limited to this, suitable sub-frame mode can be selected according to the actual needs.

It is merely illustrative the structure of the second mapping relations in an embodiment of the present invention, does not limit and says that the second mapping is closed System can only be indicated in the form of mapping table, can select the be suitble to second mapping according to actual implementation environment in practical applications Relational structure.

304, the first user equipment obtains the first mapping relations.

Wherein, the first mapping relations are the correspondence between channel indicated value, antenna port, the data flow number of plies and transcoding mark Relationship；The transcoding mark is used to indicate the serial number of demodulated reference signal.

Further, which includes:

First user equipment indicates information according to scheduling, obtains the first mapping relations.

In actual application scenarios, the table structure of the first mapping relations can be the table structure only obtained needed for oneself, It is also possible to obtain all table structures.At this point, when the first mapping relations include that all mapping table structures of above three are used When all mapping table structures of family device configuration, the first user equipment can indicate learn choosing according to the scheduling of first base station Which the first mapping table structure selected dispatching instruction information can indicate that first needed for the first user equipment selects oneself reflects Firing table structure.

305, first base station sends the serial number of demodulated reference signal to the first user equipment.

The serial number of demodulated reference signal can be allocated to first by high-level signaling or physical layer signaling by first base station User equipment.Wherein, high-level signaling is carried in wireless heterogeneous networks (Radio Resource Control, abbreviation RRC) agreement In.Certainly, being merely illustrative herein can be used both signalings, can be selected in practice according to specific implementation environment suitable The signaling of conjunction.

306, the first user equipment receives the serial number for the demodulated reference signal that first base station is sent.

307, first base station sends Downlink Control Information to the first user equipment, in order to which the first user equipment is according to first The serial number of mapping relations, Downlink Control Information and demodulated reference signal carries out channel estimation to transmission data, obtains noiseless letter Number.

308, the first user equipment receives the Downlink Control Information that first base station is sent.

Specifically, the information of the first code block may is that the modulating-coding format of the first code block, the new data of the first code block refers to The redundancy versions of indicating value and the first code block.

The information of second code block may is that the modulating-coding format of the second code block, the second code block new data indicated value and The redundancy versions of second code block.

309, the first user equipment detects Downlink Control Information, obtains channel indicated value.

310, the first user equipment judges the number of code block according to Downlink Control Information.

311, when the number of code block is one, the first user equipment detects Downlink Control Information and obtains the new of the second code block Data indicated value.

When the instruction of new data indicated value uses the demodulated reference signal scrambler sequence of limit length, execution step 312a~ 314a；When new data indicated value instruction do not use limit length demodulated reference signal scrambler sequence, execute step 312b~ 313b；

312a, the first user equipment according to channel indicated value and the first mapping relations obtain currently used antenna port and Transcoding mark.

Optionally, the resource location that 313a, the first user equipment are arranged in currently used antenna port with except currently making Transmission data are not sent on the identical resource location of resource location in other antenna ports of antenna port.

When the structure for the first mapping relations that user equipment obtains is more to have suitable for system described in the present embodiment When the structure of four user equipmenies or the first mapping relations the case where more than four cells, step 313a is needed to be implemented, Otherwise without carrying out step 313a.

314a, the first user equipment is identified according to antenna port and transcoding and the serial number of demodulated reference signal, using default The demodulated reference signal scrambler sequence of length carries out channel estimation.

Specifically, preferred preset length can be 4 in an embodiment of the present invention, it certainly in practice can be according to specific Needs select suitable length.

When the user equipment in system needs for all user equipment or cell to be divided into when perhaps cell has eight There are four user equipment or cell in two groups, every group, use later length for 4 demodulated reference signal (Demodulation Reference Signal, abbreviation DMRS) scrambler sequence progress channel estimation.

312b, the first user equipment obtain currently used antenna port according to Downlink Control Information and the first mapping relations It is identified with transcoding.

313b, the first user equipment carry out channel and estimate according to the serial number of antenna port, transcoding mark demodulated reference signal Meter.

315, the first user equipment carries out demodulating and decoding to transmission data according to channel estimation value.

In embodiment provided by the present invention, subsequent operation is carried out according to new data indicated value, in the present invention only It is to illustrate the instruction of new data indicated value to be indicated with new data using the demodulated reference signal scrambler sequence of limit length Value is 1 to indicate；The instruction of new data indicated value can use new data without using the demodulated reference signal scrambler sequence of limit length Indicated value is 0 to indicate.Certainly, in actual performing environment, new data indicated value can also be exchanged, i.e., new data indicates When value is 1, the demodulated reference signal scrambling code that the new data indicated value instruction in the embodiment of the present invention does not use limit length is executed Operation when sequence；When new data indicated value is 0, the new data indicated value instruction executed in the embodiment of the present invention uses restriction length Operation when the demodulated reference signal scrambler sequence of degree.During entire realization, it should define tool when original execution The corresponding operation of new data indicated value of body.

The method for the interference coordination that the embodiment of the present invention provides, by redefine channel indicated value and antenna port, Mapping relations between the data flow number of plies and transcoding mark, using the demodulated reference signal scrambler sequence of preset length to transmission number According to demodulating and decoding is carried out, the interference in data transmission procedure in more minizones and cell is effectively reduced.In turn, Ke Yiti The performance of the system of liter.

The embodiment of the present invention provides a kind of method of interference coordination, and being suitable for transmission mode is TM9 or TM10, works as code block When number is two, referring to shown in Fig. 4, comprising the following steps:

401, first base station obtains the first mapping relations.

402, first base station receives the first information that any second base station is sent.

403, first base station obtains the second mapping relations according to the first information with the first mapping relations.

404, the first user equipment obtains the first mapping relations.

Specifically, the step 408 includes: the first user equipment according to scheduling instruction information, the first mapping relations are obtained.

When all mappings that included all mapping table structures of above three i.e. user device configuration of the first mapping relations When table structure, the first user equipment needs learn which the first mapping table knot selected according to the instruction of first base station Structure.

405, first base station sends the serial number of demodulated reference signal to the first user equipment.

406, the first user equipment receives the serial number for the demodulated reference signal that first base station is sent.

407, first base station sends Downlink Control Information to the first user equipment, in order to which the first user equipment is according to first The serial number of mapping relations, Downlink Control Information and demodulated reference signal carries out channel estimation to transmission data, obtains noiseless letter Number.

408, the first user equipment receives the Downlink Control Information that first base station is sent.

409, the first user equipment detects Downlink Control Information, obtains channel indicated value.

410, the first user equipment judges the number of code block according to Downlink Control Information.

411, when the number of code block is two, the first user equipment is obtained according to Downlink Control Information and the first mapping relations Take currently used antenna port and transcoding mark.

412, the first user equipment carries out channel and estimates according to antenna port, the serial number of transcoding mark and demodulated reference signal Meter.

413, the first user equipment carries out demodulating and decoding to transmission data according to channel estimation value.

Explanation in the present embodiment in the explanation and above-described embodiment of related content identical with step in above-described embodiment Identical, details are not described herein again.

For in system there are four or operation step the case where for four user equipmenies or cell, in the present embodiment It suddenly is identical.

The embodiment of the present invention provides a kind of first user equipment 5, referring to Figure 5, comprising: first acquisition unit 51, Receiving unit 52, judging unit 53 and first processing units 54；Wherein:

First acquisition unit 51, for obtaining the first mapping relations.

Receiving unit 52, the serial number of the demodulated reference signal for receiving first base station transmission.

Receiving unit 52 is also used to receive the Downlink Control Information of first base station transmission.

First acquisition unit 51 is also used to detect Downlink Control Information, obtains channel indicated value.

Judging unit 53, for judging the number of code block according to Downlink Control Information.

First processing units 54, for when the number of code block is one, detection Downlink Control Information to obtain the second code block New data indicated value.

First processing units 54 are also used to use the demodulated reference signal scrambling code of limit length when the instruction of new data indicated value When sequence, according to channel indicated value, the serial number of the first mapping relations and demodulated reference signal, the demodulation reference of preset length is used Signal scrambling code sequence carries out channel estimation.

First processing units 54, are also used to according to channel estimation value, carry out demodulating and decoding to transmission data.

First acquisition unit 51 is specifically used for indicating information according to scheduling, obtains the first mapping relations.

Further, referring to shown in Fig. 6, first user equipment further include: second acquisition unit 65 and the second processing unit 56, in which:

Second acquisition unit 55, for being closed according to Downlink Control Information and the first mapping when the number of code block is two System obtains currently used antenna port and transcoding mark.

The second processing unit 56 is also used to carry out letter according to the serial number of antenna port, transcoding mark and demodulated reference signal Road estimation.

The second processing unit 56, is also used to according to channel estimation value, carries out demodulating and decoding to transmission data.

Further, referring to shown in Fig. 7, first processing units 54 include: to obtain subelement 541 and processing subelement 542, In:

Subelement 541 is obtained, for using the demodulated reference signal scrambling code sequence of limit length when the instruction of new data indicated value When column, currently used antenna port and transcoding are obtained according to channel indicated value and the first mapping relations and is identified.

Subelement 542 is handled, for the serial number according to antenna port, transcoding mark and demodulated reference signal, using default The demodulated reference signal scrambler sequence of length carries out channel estimation.

Further, optionally, referring to shown in Fig. 7, first user equipment further include: setting unit 57, in which:

Setting unit 57, resource location for being arranged in currently used antenna port with remove currently used antenna end Transmission data are not sent on the identical resource location of resource location in other antenna ports of mouth.

Optionally, referring to shown in Fig. 8, the first user equipment further include: third acquiring unit 68 and third processing unit 59, Wherein:

Third acquiring unit 58, for not using the demodulated reference signal scrambling code of limit length when the instruction of new data indicated value When sequence, currently used antenna port and transcoding are obtained according to Downlink Control Information and the first mapping relations and is identified.

Third processing unit 59 carries out channel for the serial number according to antenna port, transcoding mark and demodulated reference signal Estimation.

Third processing unit 59, is also used to according to channel estimation value, carries out demodulating and decoding to transmission data.

Specifically, the new data of the second code block is designated as the demodulated reference signal scrambler sequence using limit length in this hair In bright embodiment 1 can be designated as with the new data of the second code block to indicate；The new data of second code block is designated as not using The demodulated reference signal scrambler sequence of limit length can be designated as 0 with the new data of the second code block in an embodiment of the present invention To indicate.Channel in relation mapping table in the present embodiment, when can be designated as 0 or 1 with the new data of second code block Corresponding relationship between indicated value, antenna port, the data flow number of plies and transcoding mark.Certainly, it is merely illustrative second herein The new data indicated value instruction of code block can use the new data indicated value using the demodulated reference signal scrambler sequence of limit length It is indicated for 1, same new data indicated value instruction can use the new number without using the demodulated reference signal scrambler sequence of limit length Be 0 to indicate according to indicated value, this do not limited specifically, new data indicated value it is corresponding with it is specific digital when also can be interchanged come Execute corresponding operation.

The first user equipment that the embodiment of the present invention provides, by redefining channel indicated value and antenna port, number According to the mapping relations between fluid layer number and transcoding mark, using the demodulated reference signal scrambler sequence of preset length to transmission data Demodulating and decoding is carried out, the interference in data transmission procedure in more minizones and cell is effectively reduced.In turn, it can be promoted The performance of system.

The embodiment of the present invention provides a kind of first base station 6, referring to shown in Fig. 9, comprising: acquiring unit 61, receiving unit 62 and transmission unit 63, in which:

Acquiring unit 61, for obtaining the first mapping relations.

First mapping relations include: in a code block, and the new data of the second code block is designated as the solution without using limit length The corresponding antenna port of channel indicated value, the data flow number of plies and transcoding mark and the second code block when tune reference signal scrambler sequence Channel indicated value corresponding antenna port of new data when being designated as the demodulated reference signal scrambler sequence using limit length, In the data flow number of plies and transcoding mark and two code blocks, the corresponding antenna port of channel indicated value, the data flow number of plies and transcoding Mark；Wherein, the first mapping relations are indicated in the form of mapping table.

Receiving unit 62, the first information sent for receiving any second base station.

Acquiring unit 61 is also used to obtain the second mapping relations with the first mapping relations according to the first information.

Transmission unit 63, for sending the serial number of demodulated reference signal to the first user equipment.

Transmission unit 63 is also used to send Downlink Control Information to the first user equipment, in order to the first user equipment root Channel estimation is carried out to transmission data according to the serial number of the first mapping relations, Downlink Control Information and demodulated reference signal, obtains nothing Interference signal.

The first base station that the embodiment of the present invention provides, by redefining channel indicated value and antenna port, data flow Mapping relations between the number of plies and transcoding mark carry out transmission data using the demodulated reference signal scrambler sequence of preset length Demodulating and decoding effectively reduces the interference in data transmission procedure in more minizones and cell.It in turn, can be with lifting system Performance.

The embodiment of the present invention provides a kind of first user equipment 7, referring to Fig.1 shown in 0, comprising: at least one processor 71, memory 72, communication interface 73 and bus 74, at least one processor 71, memory 72 and communication interface 73 pass through bus 74 connect and complete mutual communication, in which:

The bus 74 can be industry standard architecture (Industry Standard Architecture, referred to as ISA) bus, external equipment interconnection (Peripheral Component Interconnect), referred to as PCI) bus or extension Industry standard architecture (Extended Industry Standard Architecture, referred to as EISA) bus etc..It should Bus 74 can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 10 convenient for indicating, It is not intended that only a bus or a type of bus.Wherein:

For memory 72 for storing executable program code, which includes computer operation instruction.Memory 72 It may include high speed RAM memory, it is also possible to further include nonvolatile memory (non-volatile memory), such as extremely A few magnetic disk storage.

Processor 71 may be a central processing unit (Central Processing Unit, referred to as CPU), or It is specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or is matched It is set to one or more integrated circuits of the embodiment of the present invention.

Communication interface 73 is mainly used for realizing the communication between the first base station and the first user equipment of the present embodiment.

Processor 71 is also used to call the program code in memory 72, to execute following operation:

The first mapping relations are obtained by least one communication interface 73.

The serial number for the demodulated reference signal that first base station is sent is received by least one communication interface 73.

By at least one communication interface 73, the Downlink Control Information that first base station is sent is received.

Downlink Control Information is detected, channel indicated value is obtained.

According to Downlink Control Information, the number of code block is judged.

When the number of code block is one, detection Downlink Control Information obtains the new data indicated value of the second code block.

When new data indicated value is the demodulated reference signal scrambler sequence that instruction uses limit length, indicated according to channel Value, the serial number of the first mapping relations and demodulated reference signal, carry out letter using the demodulated reference signal scrambler sequence of preset length Road estimation.

According to channel estimation value, demodulating and decoding is carried out to transmission data.

Further, processor 71, are specifically used for indicating information according to scheduling, obtain the by least one communication interface 73 One mapping relations.

Optionally, processor 73 is also used to execute following affected:

When the number of code block is two, currently used antenna is obtained according to Downlink Control Information and the first mapping relations Port and transcoding mark.

According to antenna port, the serial number of transcoding mark and demodulated reference signal, channel estimation is carried out.

Further, processor 73 is specifically used for:

When new data indicated value is the demodulated reference signal scrambler sequence that instruction uses limit length, indicated according to channel Value and the first mapping relations obtain currently used antenna port and transcoding mark.

According to antenna port, the serial number of transcoding mark and demodulated reference signal, the demodulated reference signal of preset length is used Scrambler sequence carries out channel estimation.

Further, processor 73, be also used to be arranged resource location in currently used antenna port with except currently used Antenna port other antenna ports in the identical resource location of resource location on do not send transmission data.

Further, optionally, processor 73 is also used to execute following operation:

When new data indicated value is the demodulated reference signal scrambler sequence that instruction does not use limit length, according to downlink control Information processed and the first mapping relations obtain currently used antenna port and transcoding mark.

The embodiment of the present invention provides a kind of first base station 8, referring to Fig.1 shown in 1, comprising: at least one processor 81 is deposited Reservoir 82, communication interface 83 and bus 84, at least one processor 81, memory 82 and communication interface 83 are connected by bus 84 And complete mutual communication, in which:

The bus 84 can be industry standard architecture (Industry Standard Architecture, referred to as ISA) bus, external equipment interconnection (Peripheral Component Interconnect), referred to as PCI) bus or extension Industry standard architecture (Extended Industry Standard Architecture, referred to as EISA) bus etc..It should Bus 84 can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 11 convenient for indicating, It is not intended that only a bus or a type of bus.Wherein:

For memory 82 for storing executable program code, which includes computer operation instruction.Memory 82 It may include high speed RAM memory, it is also possible to further include nonvolatile memory (non-volatile memory), such as extremely A few magnetic disk storage.

Processor 81 may be a central processing unit (Central Processing Unit, referred to as CPU), or It is specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or is matched It is set to one or more integrated circuits of the embodiment of the present invention.

Communication interface 83 is mainly used for realizing the communication between the first base station and the first user equipment of the present embodiment.

Processor 81 is also used to call the program code in memory 82, to execute following operation:

The first mapping relations are obtained by least one communication interface 83.

The first information that any second base station is sent is received by least one communication interface 83.

According to the first information with the first mapping relations, the second mapping relations are obtained by least one communication interface 73.

Specifically, the serial number of all demodulated reference signals in the second mapping relations is all the same.

The serial number of demodulated reference signal is sent to the first user equipment by least one communication interface 73.

Downlink Control Information is sent to the first user equipment, in order to which the first user sets by least one communication interface 73 The standby serial number according to the first mapping relations, Downlink Control Information and demodulated reference signal carries out channel estimation to transmission data, obtains To state no interference signal.

The embodiment of the present invention provides a kind of system of interference coordination, referring to Fig.1 shown in 2, comprising: first base station a, first User equipment b and the second base station c, in which:

First base station a is the first base station in the corresponding embodiment of Fig. 9；First user equipment b is the corresponding reality in Fig. 5~8 Apply any first user equipment in example.

Or, first base station a is the first base station in the corresponding embodiment of Figure 11；First user equipment b is that Figure 10 is corresponding The first user equipment in embodiment.

Second base station c, for sending the first information to first base station a.

The system for the interference coordination that the embodiment of the present invention provides, by redefine channel indicated value and antenna port, Mapping relations between the data flow number of plies and transcoding mark, using the demodulated reference signal scrambler sequence of preset length to transmission number According to demodulating and decoding is carried out, the interference in data transmission procedure in more minizones and cell is effectively reduced.In turn, Ke Yiti The performance of the system of liter.

It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above Energy.The specific work process of the system, apparatus, and unit of foregoing description, can be with reference to corresponding in preceding method embodiment Journey, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or The division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units Or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, institute Display or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit Indirect coupling or communication connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution. Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

1. a kind of method of interference coordination characterized by comprising

First user equipment obtains the first mapping relations；Wherein, first mapping relations be channel indicated value, antenna port, Corresponding relationship between the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the serial number of demodulated reference signal；

Receive the serial number for the demodulated reference signal that first base station is sent；

Receive the Downlink Control Information that the first base station is sent；It wherein, include: the first code block in the Downlink Control Information The information of information and the second code block；

When the number of the code block is one, the new data indicated value that the Downlink Control Information obtains the second code block is detected；

When new data indicated value instruction uses the demodulated reference signal scrambler sequence of limit length, referred to according to the channel The serial number of indicating value, first mapping relations and the demodulated reference signal uses the demodulated reference signal scrambling code of preset length Sequence carries out channel estimation；

2. the method according to claim 1, wherein first user equipment obtains the first mapping relations packet It includes:

3. method according to claim 1 or 2, which is characterized in that the method also includes:

When the number of the code block is two, currently made according to the Downlink Control Information and first mapping relations acquisition Antenna port and transcoding mark；

4. any method according to claim 1~2, which is characterized in that it is described according to the channel indicated value, described the The serial number of one mapping relations and the demodulated reference signal carries out channel using the demodulated reference signal scrambler sequence of preset length Estimation, comprising:

When new data indicated value instruction uses the demodulated reference signal scrambler sequence of limit length, referred to according to the channel Indicating value and first mapping relations obtain currently used antenna port and transcoding mark；

According to the antenna port, the serial number of the transcoding mark and the demodulated reference signal, the demodulation of preset length is used Reference signal scrambler sequence carries out channel estimation.

5. according to the method described in claim 4, it is characterized in that, it is described according to the antenna port, the transcoding mark and The serial number of the demodulated reference signal, before carrying out channel estimation using the demodulated reference signal scrambler sequence of preset length, also Include:

The resource location being arranged in the currently used antenna port and the other days for removing the currently used antenna port Transmission data are not sent on the identical resource location of resource location in line end mouth.

6. according to the method described in claim 4, it is characterized in that, the method also includes:

When new data indicated value instruction does not use the demodulated reference signal scrambler sequence of limit length, according to the downlink Control information and first mapping relations obtain currently used antenna port and transcoding mark；

7. according to claim 1~2,5 any method, which is characterized in that

First mapping relations include: in a code block, and the new data of the second code block is designated as the solution without using limit length The corresponding antenna port of channel indicated value, the data flow number of plies and transcoding mark and the second code block when tune reference signal scrambler sequence Channel indicated value corresponding antenna port of new data when being designated as the demodulated reference signal scrambler sequence using limit length, In the data flow number of plies and transcoding mark and two code blocks, the corresponding antenna port of channel indicated value, the data flow number of plies and transcoding Mark；Wherein, first mapping relations are indicated in the form of mapping table.

8. the method according to the description of claim 7 is characterized in that

9. a kind of method of interference coordination characterized by comprising

First base station obtains the first mapping relations；Wherein, first mapping relations are channel indicated value, antenna port, data Mapping relations between fluid layer number and transcoding mark；The transcoding mark is used to indicate the serial number of demodulated reference signal；

Receive the first information that any second base station is sent；Wherein, the first information includes but is not limited to: antenna port, solution Adjust the serial number and sub-frame set of reference signal；The sub-frame set be used to indicate any second base station send data when It carves；

According to the first information and first mapping relations, the second mapping relations are obtained；Wherein, second mapping relations For cell ID, antenna port, demodulated reference signal serial number and sub-frame mode between mapping relations；

Downlink Control Information is sent to first user equipment, in order to which first user equipment is according to first mapping The serial number of relationship, the Downlink Control Information and the demodulated reference signal carries out channel estimation to transmission data, obtains without dry Disturb signal；

It specifically includes:

First user detects the Downlink Control Information, obtains the channel indicated value；

When new data indicated value instruction uses the demodulated reference signal scrambler sequence of limit length, referred to according to the channel The serial number of indicating value, first mapping relations and the demodulated reference signal uses the demodulated reference signal scrambling code of preset length Sequence carries out channel estimation.

10. according to the method described in claim 9, it is characterized in that,

11. according to the method described in claim 10, it is characterized in that,

12. according to the method described in claim 9, it is characterized in that,

13. a kind of first user equipment characterized by comprising

First acquisition unit, for obtaining the first mapping relations；Wherein, first mapping relations are channel indicated value, antenna Corresponding relationship between port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the sequence of demodulated reference signal Number；

Receiving unit, the serial number of the demodulated reference signal for receiving first base station transmission；

The receiving unit is also used to receive the Downlink Control Information that the first base station is sent；Wherein, the downlink control letter It include: the information of the first code block and the information of the second code block in breath；

First processing units, for detecting the Downlink Control Information and obtaining second code when the number of the code block is one The new data indicated value of block；

The first processing units are also used to disturb when new data indicated value instruction using the demodulated reference signal of limit length When code sequence, according to the channel indicated value, the serial number of first mapping relations and the demodulated reference signal, using default The demodulated reference signal scrambler sequence of length carries out channel estimation；

The first processing units, are also used to according to the channel estimation value, carry out demodulating and decoding to transmission data.

14. the first user equipment according to claim 13, which is characterized in that the first acquisition unit is specifically used for:

15. the first user equipment described in 3 or 14 according to claim 1, which is characterized in that first user equipment also wraps It includes:

Second acquisition unit, for when the number of the code block be two when, according to the Downlink Control Information and described first Mapping relations obtain currently used antenna port and transcoding mark；

The second processing unit is also used to the serial number according to the antenna port, the transcoding mark and the demodulated reference signal, Carry out channel estimation；

16. 3~14 any first user equipment according to claim 1, which is characterized in that the first processing units packet It includes:

Subelement is obtained, for using the demodulated reference signal scrambler sequence of limit length when new data indicated value instruction When, currently used antenna port and transcoding, which are obtained, according to the channel indicated value and first mapping relations identifies；

Subelement is handled, for the serial number according to the antenna port, the transcoding mark and the demodulated reference signal, is used The demodulated reference signal scrambler sequence of preset length carries out channel estimation.

17. the first user equipment according to claim 16, which is characterized in that first user equipment further include:

Setting unit, resource location for being arranged in the currently used antenna port with remove the currently used antenna Transmission data are not sent on the identical resource location of resource location in other antenna ports of port.

18. the first user equipment according to claim 16, which is characterized in that first user equipment further include:

Third acquiring unit, for not using the demodulated reference signal scrambling code sequence of limit length when new data indicated value instruction When column, currently used antenna port and transcoding are obtained according to the Downlink Control Information and first mapping relations and is identified；

Third processing unit, for according to the antenna port, the transcoding mark and the demodulated reference signal serial number, into Row channel estimation；

19. 3~14, any first user equipment of 17-18 according to claim 1, which is characterized in that

20. the first user equipment according to claim 19, which is characterized in that

21. a kind of first base station characterized by comprising

Acquiring unit, for obtaining the first mapping relations；Wherein, first mapping relations be channel indicated value, antenna port, Mapping relations between the data flow number of plies and transcoding mark；The transcoding mark is used to indicate the serial number of demodulated reference signal；

Receiving unit, the first information sent for receiving any second base station；Wherein, the first information includes but unlimited In the serial number and sub-frame set of the antenna port of: the second base station, the demodulated reference signal of the second base station；The sub-frame set is used for At the time of indicating that any second base station sends data；

The acquiring unit is also used to obtain the second mapping relations according to the first information and first mapping relations；Its In, second mapping relations are the mapping between the serial number and sub-frame mode of cell ID, antenna port, demodulated reference signal Relationship；

The transmission unit is also used to send Downlink Control Information to first user equipment, in order to first user Equipment according to the serial number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data into Row channel estimation, obtains state no interference signal；

It specifically includes:

22. first base station according to claim 21, which is characterized in that

23. first base station according to claim 22, which is characterized in that

24. first base station according to claim 21, which is characterized in that

25. a kind of first user equipment characterized by comprising at least one processor, memory, communication interface and bus, At least one described processor, memory connect by bus with communication interface and complete mutual communication, the memory For storing program code, in which:

The first mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are channel instruction Corresponding relationship between value, antenna port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate demodulation reference letter Number serial number；

The serial number for the demodulated reference signal that first base station is sent is received by least one described communication interface；

The Downlink Control Information that the first base station is sent is received by least one described communication interface；Wherein, the downlink Controlling in information includes: the information of the first code block and the information of the second code block；

26. the first user equipment according to claim 25, which is characterized in that the processor is specifically used for:

27. first user equipment according to claim 25 or 26, which is characterized in that the processor is also used to:

28. according to any first user equipment of claim 25~26, which is characterized in that the processing implement body is used In:

29. the first user equipment according to claim 28, which is characterized in that the processor is also used to:

30. the first user equipment according to claim 28, which is characterized in that the processor is also used to:

31. according to claim 25~26, any first user equipment of 29-30, which is characterized in that

32. the first user equipment according to claim 31, which is characterized in that

33. a kind of first base station characterized by comprising at least one processor, memory, communication interface and bus, it is described At least one processor, memory and communication interface connect by bus and complete mutual communication, and the memory is used for Store program code, in which:

The first mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are channel instruction Mapping relations between value, antenna port, the data flow number of plies and transcoding mark；The transcoding mark is used to indicate demodulation reference letter Number serial number；

The first information that any second base station is sent is received by least one described communication interface；Wherein, the first information Including but not limited to: the serial number and sub-frame set of antenna port, demodulated reference signal；The sub-frame set is used to indicate described appoint At the time of one second base station sends data；

According to the first information and first mapping relations, the second mapping is obtained by least one described communication interface and is closed System；Wherein, second mapping relations are between the serial number and sub-frame mode of cell ID, antenna port, demodulated reference signal Mapping relations；

Downlink Control Information is sent to first user equipment, in order to described first by least one described communication interface User equipment is according to the serial number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission number According to channel estimation is carried out, state no interference signal is obtained；

It specifically includes:

34. first base station according to claim 33, which is characterized in that

35. first base station according to claim 34, which is characterized in that

36. first base station according to claim 33, which is characterized in that