CN104995975A

CN104995975A - Interference coordination method and device

Info

Publication number: CN104995975A
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: 2015-10-21
Anticipated expiration: 2033-06-19
Also published as: CN104995975B; WO2014201644A1

Abstract

Provided are an interference coordination method and device, which relate to the technical field of communications and effectively reduce more inter-cell and intra-cell interference in the process of data transmission. The method specifically comprises: a first user equipment acquiring a first mapping relation; receiving a sequence number of a demodulation reference signal sent by a first base station; receiving downlink control information sent by the first base station; detecting the downlink control information and obtaining a channel indication value; judging the number of code blocks according to the downlink control information; when the number of the code blocks is one, detecting the downlink control information and obtaining a new data indication value of a second code block; when the new data indication value indicates to use a demodulation reference signal scrambling sequence with a defined length, performing channel estimation using a demodulation reference signal scrambling sequence with a pre-set length according to the channel indication value, the first mapping relation and the sequence number of the demodulation reference signal; and performing demodulation and decoding on transmission data according to a channel estimation value. The present invention is used in information transmission.

Description

Interference coordination method and device

A kind of method and apparatus technical field of interference coordination

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

Long Term Evolution plan（Long Term Evolution, abbreviation LTE) project is the 3rd generation communication system (The Third Generation Telecommunication, referred to as 3 G) evolution, improve and enhance 3 G aerial access technology, using orthogonal frequency division multiplexer (Orthogonal Frequency Division Multiplexing, abbreviation OFDM) and to defeated multi output（Multi pie Input and Multiple output, abbreviation MIMO) it is used as the sole criterion of wireless network evolution in LTE systems.In LTE systems, when base station needs to send data to user, Downlink Control Information can be sent to user by PDCCH channels and PDSCH channels simultaneously（Downlink control information, abbreviation DCI) and data.Demodulation Physical Downlink Shared Channel is carry inside DCI（Physical Downlink Shared Channel, abbreviation PDSCH) in data needed for information, the information such as modulation coding mode, resource distribution location.

LTE defines a variety of transmission modes downlink data transmission altogether, base station configures which kind of transmission mode is current UE be in by high-level signaling first, base station can be selected on PDCCH channels using a certain DCI format inside the transmission mode during scheduling, for UE, two kinds of DCI that may be present of blind check on PDCCH channels are needed, so as to further demodulate the information of data on PDSCH by the DCI that detects.

It is general in the prior art that DCI format 2C and TM 10 is based on based on the corresponding transmission modes of DCI format 2D using TM9, both transmission modes are for PD SCH, most 8 layers of data can be passed every time, and each layer of data transfer all corresponds to an antenna port.For demodulated reference signal（Demodulation Reference Signal, abbreviation DMRS) pilot tone is present in each data resource block, for channel estimation, data is demodulated. But, because the DMRS pilot tones of each cell take identical resource location, therefore when the corresponding antenna port of a certain layer to some UE carries out channel estimation, it can be disturbed by the antenna port of adjacent cell, the adjacent user of this cell or other layers of this user, avoid the interference produced during channel estimation by using the orthogonal method of antenna port in the prior art.But the method for the prior art for avoiding interference, in terms of the interference of adjacent cell and the adjacent user of this cell is avoided, two users or two minizones are only applicable to, the interference that can evade is limited.The content of the invention

Embodiments of the invention provide a kind of method and apparatus of interference coordination, effectively reduce the interference in more minizones and cell in data transmission procedure.

To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：

First aspect there is provided a kind of method of interference coordination, including：

First user equipment obtains the first mapping relations；Wherein, first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receive the sequence 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；Wherein, the Downlink Control Information includes：The information of the information of first code 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, detect that the Downlink Control Information obtains the new data indicated value of the second code block；

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length；According to channel estimation value, decoding is demodulated to the transmission data.

In the first possible implementation, with reference in a first aspect, the first mapping relations of first user equipment acquisition include：

According to scheduling configured information, first mapping relations are obtained. In second of possible implementation, with reference to first aspect or the first possible implementation, methods described also includes：

When the number of the code block is two, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

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

According to channel estimation value, decoding is demodulated to the transmission data.

In the third possible implementation, with reference to first aspect or any of the above-described possible implementation, the sequence number according to the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length, including：

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, identified according to the channel indicated value and the currently used antenna port of first mapping relations acquisition and transcoding；

According to the sequence number of the antenna port, transcoding mark and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

In the 4th kind of possible implementation, with reference to the third possible implementation, the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, before the demodulated reference signal scrambler sequence progress channel estimation of preset length, in addition to：Set and do not send transmission data on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

In the 5th kind of possible implementation, with reference to the third possible implementation or the 4th kind of possible implementation, methods described also includes：

When the new data indicated value indicates the demodulated reference signal scrambler sequence without using limit length, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

According to the sequence number of the antenna port, transcoding mark and the demodulated reference signal, channel estimation is carried out； According to channel estimation value, decoding is demodulated to the transmission data.

In the 6th kind of possible implementation, with reference to first aspect or any of the above-described possible implementation,

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

In the 7th kind of possible implementation, with reference to the 6th kind of possible implementation, the corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports.

Second aspect there is provided a kind of method of interference coordination, including：

First base station obtains the first mapping relations；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receive the first information that any second base station is sent；The wherein described first information includes but is not limited to：The sequence number and sub-frame set of antenna port, demodulated reference signal；At the time of the sub-frame set user indicates that any second base station sends data；

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

The sequence 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 carries out channel estimation according to the sequence number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data, state no interference signal is obtained.

In the first possible implementation, with reference in a first aspect, First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

In second of possible implementation, with reference to the first possible implementation, the corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports.

In the third possible implementation, with reference to second aspect,

The sequence number all same of all demodulated reference signals in second mapping relations.

The third aspect there is provided a kind of first user equipment, including：

First acquisition unit, for obtaining the first mapping relations；Wherein, first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receiving unit, the sequence number for receiving the demodulated reference signal that the first base station is sent；The receiving unit, is additionally operable to receive the Downlink Control Information that the first base station is sent；Wherein, the Downlink Control Information includes：The information of the information of first code block and the second code block；

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

Judging unit, for according to the Downlink Control Information, judging the number of code block；First processing units, for when the number of the code block is one, detecting that the Downlink Control Information obtains the new data indicated value of the second code block；

The first processing units, it is additionally operable to when the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of the channel indicated value, first mapping relations and the demodulated reference signal, believed using the demodulation reference of preset length Number scrambler sequence carries out channel estimation；

The first processing units, are additionally operable to according to the channel estimation value, and decoding is demodulated to the transmission data.

In the first possible implementation, with reference to the third aspect, the first acquisition unit specifically for：

According to scheduling configured information, first mapping relations are obtained.

In second of possible implementation, with reference to the third aspect or the first possible implementation, first user equipment also includes：

Second acquisition unit, for when the number of the code block is two, being identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

Second processing unit, is additionally operable to the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, carries out channel estimation；

The second processing unit, is additionally operable to according to channel estimation value, and decoding is demodulated to the transmission data.

In the third possible implementation, with reference to the third aspect or any of the above-described possible implementation, the first processing units include：

Subelement is obtained, for being indicated when the new data indicated value during demodulated reference signal scrambler sequence using limit length, is identified according to the channel indicated value and the currently used antenna port of first mapping relations acquisition and transcoding；

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

In the 4th kind of possible implementation, with reference to the third possible implementation, first user equipment also includes：

Setting unit, transmission data are not sent for setting on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

In the 5th kind of possible implementation, with reference to the third possible implementation or Four kinds of possible implementations, first user equipment also includes：

3rd acquiring unit, for being indicated when the new data indicated value during demodulated reference signal scrambler sequence without using limit length, is identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

3rd processing unit, for the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, carries out channel estimation；

3rd processing unit, is additionally operable to according to channel estimation value, and decoding is demodulated to the transmission data.

In the 6th kind of possible implementation, with reference to the third aspect or any of the above-described possible implementation,

Fourth aspect there is provided a kind of first base station, including：

Acquiring unit, for obtaining the first mapping relations；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receiving unit, for receiving the first information that any second base station is sent；The wherein described first information includes but is not limited to：The sequence number and sub-frame set of antenna port, demodulated reference signal；At the time of the sub-frame set user indicates that any second base station sends data；The acquiring unit, is additionally operable to according to the first information and first mapping relations, Obtain the second mapping relations；Wherein, second mapping relations are the mapping relations between cell ID, antenna port, the sequence number of demodulated reference signal and sub-frame mode；

Transmitting element, for sending the sequence number of the demodulated reference signal to the first user equipment；The transmitting element, it is additionally operable to send Downlink Control Information to first user equipment, in order to which first user equipment carries out channel estimation according to the sequence number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data, state no interference signal is obtained.

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

In the third possible implementation, with reference to fourth aspect,

There is provided a kind of first user equipment in terms of 5th, including：At least one processor, memory, communication interface and bus, at least one described processor, memory and communication interface are connected by bus and complete mutual communication, and the memory is used for store program codes, wherein：

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

First mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are between channel indicated value, antenna port, the data flow number of plies and transcoding mark Mapping relations；The transcoding identifies the sequence number for indicating demodulated reference signal；The sequence 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, the Downlink Control Information includes：The information of the information of first code block and the second code block；

In the first possible implementation, with reference to the 5th aspect, the processor specifically for：

According to scheduling configured information, first mapping relations are obtained by least one described communication interface.

In second of possible implementation, with reference to the 5th aspect or the first possible implementation, the processor is additionally operable to：

In the third possible implementation, with reference to the 5th aspect or any of the above-described possible implementation, the processor specifically for：

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, currently used day is obtained according to the channel indicated value and first mapping relations Line end mouthful and transcoding mark；

In the 4th kind of possible implementation, with reference to the third possible implementation, the processor is additionally operable to：

Set and do not send transmission data on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

In the 5th kind of possible implementation, with reference to the third possible implementation or the 4th kind of possible implementation, the processor is additionally operable to：

In the 6th kind of possible implementation, with reference to the 5th aspect or any of the above-described possible implementation,

In the 7th kind of possible implementation, with reference to the 6th kind of possible implementation, the corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports. There is provided a kind of first base station in terms of 6th, including：At least one processor, memory, communication interface and bus, at least one described processor, memory and communication interface are connected by bus and complete mutual communication, and the memory is used for store program codes, its towel：

First mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

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

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

The sequence 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 by least one described communication interface, in order to which first user equipment carries out channel estimation according to the sequence number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data, state no interference signal is obtained.

In the first possible implementation, with reference to the 6th aspect,

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 to map The form of table is represented.

In the third possible implementation, with reference to the 5th aspect,

The method and apparatus for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

A kind of schematic flow sheet of the method for interference coordination that Fig. 1 provides for embodiments of the invention；

The schematic flow sheet of the method for another interference coordination that Fig. 2 provides for embodiments of the invention；

The schematic flow sheet of the method for another interference coordination that Fig. 3 provides for embodiments of the invention；

The schematic flow sheet of the method for another interference coordination that Fig. 4 provides for embodiments of the invention；

A kind of structural representation for first user equipment that Fig. 5 provides for embodiments of the invention；

The structural representation for another first user equipment that Fig. 6 provides for embodiments of the invention Figure；

The structural representation for another the first user equipment that Fig. 7 provides for embodiments of the invention；

The structural representation for another the first user equipment that Fig. 8 provides for embodiments of the invention；

A kind of structural representation for first base station that Fig. 9 provides for embodiments of the invention；A kind of structural representation for first user equipment that Figure 10 provides for another embodiment of the present invention；

The structural representation for another first base station that Fig. 11 provides for embodiments of the invention；A kind of structural representation of the system for interference coordination that Figure 12 provides for embodiments of the invention.Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Embodiments of the invention provide a kind of method of interference coordination, shown in reference picture 1, comprise the following steps：

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

Wherein, the first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；Transcoding identifies the sequence number for indicating demodulated reference signal.

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

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

Wherein, Downlink Control Information includes：The information of the information of first code block and the second code block.

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

105th, the first user equipment judges the number of code block according to Downlink Control Information. 106th, when the number of code block is one, the first user equipment detection Downlink Control Information obtains the new data indicated value of the second code block.

107th, when new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, first user equipment carries out channel estimation according to the sequence number of channel indicated value, the first mapping relations and demodulated reference signal using the demodulated reference signal scrambler sequence of preset length.

108th, the first user equipment is demodulated decoding according to channel estimation value to transmission data.The method for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.Embodiments of the invention provide a kind of method of interference coordination, shown in reference picture 2, comprise the following steps：

201st, first base station obtains the first mapping relations.

Wherein, the first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；Transcoding identifies the sequence number for indicating demodulated reference signal.

202nd, 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 sequence number and sub-frame set of antenna port, demodulated reference signal；At the time of sub-frame set user indicates that any second base station sends data.

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

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

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

205th, first base station sends Downlink Control Information to the first user equipment, in order to which the first user equipment carries out channel estimation according to the sequence number of the first mapping relations, Downlink Control Information and demodulated reference signal to transmission data, obtains state no interference signal.

The method for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, using pre- If the demodulated reference signal scrambler sequence of length is demodulated decoding to transmission data, the interference in more minizones and cell in data transmission procedure is effectively reduced.Embodiments of the invention provide a kind of method of interference coordination, it is adaptable to which transmission mode is

TM9 or TM 10, when code block number is one, shown in reference picture 3, comprises the following steps：

301st, first base station obtains the first mapping relations.

Specifically, the first mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

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

The new data of second code block is designated as to be designated as 1 with the new data of the second code block in an embodiment of the present invention to represent using the demodulated reference signal scrambler sequence of limit length；The new data of second code block is designated as to be designated as 0 with the new data of the second code block in an embodiment of the present invention to represent without using the demodulated reference signal scrambler sequence of limit length.In relation mapping table in the present embodiment, the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark when can be designated as 0 or 1 with the new data of second code block.

First mapping relations are that operator is pre-configured in first base station according to the actual demand of user.Due to being defined in TM9 and the transmission modes of TM 10 when user is scheduled in both transmission modes, one during when carrying out channel estimation, pilot tone will use antenna port 7 14 Plant or several.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, the structure for the relation mapping table that the first mapping relations are indicated can be with as follows：

Certainly, when user terminal uses antenna port 9,10,12 and 14, the structure of the first mapping table can also be： One code block（Code block 0 is activated, the un-activation of code block 1）Two code blocks（Code block 0 and code block 1 are activated）

New data be designated as 0 new data be designated as 1 channel related information channel related information channel refer to relevant information indicate indicate indicating value

Value value

01 layers, 01 layers of antenna port, 02 layers of antenna port, antenna port 7, transcoding mark 09, transcoding identify 0 7-8, transcoding mark 0

11 layers, 11 layers of antenna port, 12 layers of antenna port, antenna port 7, transcoding mark 1 10, transcoding identify 0 7-8, transcoding mark 1

21 layers, 21 layers of antenna port, 23 layers of antenna port, antenna port 8, transcoding mark 0 12, transcoding identify 0 7-9, transcoding mark 0

31 layers, 31 layers of antenna port, 34 layers of antenna port, antenna port 8, transcoding mark 1 14, transcoding identify 0 7- 10, transcoding mark 0

42 layers, 41 layers of antenna port, 45 layers of antenna port, antenna port 7-8, transcoding mark 09, transcoding identify 1 7- 11, transcoding mark 0

53 layers, 51 layers of antenna port, 56 layers of antenna port, antenna port 7-9, transcoding mark 0 10, transcoding identify 1 7- 12, transcoding mark 0

64 layers, 61 layers of antenna port, 67 layers of antenna port, antenna port 7- 10, transcoding mark 0 12, transcoding identify 1 7- 13, transcoding mark 0

7 undefined 71 layers, 78 layers of antenna port, antenna port

14th, transcoding identifies 1 7- 14, the structure of transcoding 0 the first mapping table of above two of mark the situation of four user equipmenies or four cells suitable for system.

Optionally, the structure of the first relation mapping table can be with as shown in the table.Now, for having in system more than four user equipmenies or the situation more than four cells； One code block（Code block 0 is activated, the un-activation of code block 1）Two code blocks（Code block 0 and code block 1 are activated）

New data is designated as 0 new data and is designated as 1

Channel related information channel related information channel refers to relevant information and indicates indicating value

Value value

01 layers, 01 layers of antenna port, 02 layers of antenna port, antenna port 7, transcoding mark 07, transcoding identify 1 7-8, transcoding mark 0

11 layers, 11 layers of antenna port, 12 layers of antenna port, antenna port 7, transcoding mark 18, transcoding identify 1 7-8, transcoding mark 1

21 layers, 21 layers of antenna port, 23 layers of antenna port, antenna port 8, transcoding mark 09, transcoding identify 1 7-9, transcoding mark 0

31 layers, 31 layers of antenna port, 34 layers of antenna port, antenna port 8, transcoding mark 1 10, transcoding identify 1 7- 10, transcoding mark 0

42 layers, 41 layers of antenna port, 45 layers of antenna port, antenna port 7-8, transcoding mark 011, transcoding identify 1 7- 11, transcoding mark 0

53 layers, 51 layers of antenna port, 56 layers of antenna port, antenna port 7-9, transcoding mark 0 12, transcoding identify 1 7- 12, transcoding mark 0

64 layers, 61 layers of antenna port, 67 layers of antenna port, antenna port 7- 10, transcoding mark 0 13, transcoding identify 1 7- 13, transcoding mark 0

7 undefined 71 layers, 78 layers of antenna port, antenna port

14th, transcoding identifies 1 7- 14, transcoding mark 0 and obtained after the first mapping relations, and base station can be according to obtained channel

Obtain the data flow number of plies, antenna port and the transcoding mark of oneself.

302nd, 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 sequence number and sub-frame set of antenna port, demodulated reference signal；At the time of sub-frame set user indicates that any second base station sends data.The sequence number all same of all demodulated reference signals in second mapping relations

Specifically, the second base station can send the first information by X2 interface, the interfaces of S 1.Certainly, however it is not limited to the two interfaces, in actual application scenarios, according to specific demand appropriate interface can be selected to send information.

303rd, first base station obtains the second mapping relations according to the first information and the first mapping relations. Wherein, the second mapping relations are the mapping relations between cell ID, antenna port, the sequence number of demodulated reference signal and sub-frame mode.

When having four user equipmenies or four cells in system, the structure of the second mapping table can be under mouth shown in：

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

Wherein, in the mapping table of above-mentioned two second, the sequence number only one of which of demodulated reference signal in each mapping table, within the time as defined in sub-frame mode, base station uses the sequence number of identical demodulated reference signal, and the user equipment corresponding to base station is scheduled according to the antenna port each analyzed.In the mapping table be merely illustrative sub-frame mode be with 10 be the cycle, be certainly not limited to this, suitable sub-frame mode can be selected according to the actual needs.

The structure of the second mapping relations is merely illustrative in an embodiment of the present invention, not Restriction says that the second mapping relations can only be represented in the form of mapping table, can select the second suitable mapping relations structure according to actual implementation environment in actual applications.

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

Wherein, the first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal.

Further, the step 304 includes：

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

In actual application scenarios, the table structure of the first mapping relations can only obtain the table structure or all table structures of acquisition needed for oneself.Now, when the first mapping relations include all mapping table structure of above three mapping table structure that to be user device configuration all, the first user equipment can be indicated according to the scheduling of first base station learn select which the first mapping table structure dispatch configured information can indicate the first user equipment select oneself needed for the first mapping table structure.

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

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

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

307th, first base station sends Downlink Control Information to the first user equipment, in order to which the first user equipment carries out channel estimation according to the sequence number of the first mapping relations, Downlink Control Information and demodulated reference signal to transmission data, obtains state no interference signal.

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

Specifically, the information of the first code block can be：The redundancy versions of the modulating-coding form of first code block, the new data indicated value of the first code block and the first code block. The information of second code block can be：The redundancy versions of the modulating-coding form of second code block, the new data indicated value of the second code block and the second code block.

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

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

311st, when the number of code block is one, the first user equipment detection Downlink Control Information obtains the new data indicated value of the second code block.

When new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, step 312a 314a are performed;When new data indicated value indicates the demodulated reference signal scrambler sequence without using limit length, step 312b 313b are performed;

312a, the first user equipment is identified according to channel indicated value and the currently used antenna port of the first mapping relations acquisition and transcoding.

Optionally, 313a, the first user equipment set and do not send transmission data on the resource location identical resource location in other antenna ports of the resource location in currently used antenna port with removing currently used antenna port.

When the first mapping relations that user equipment is obtained structure for having suitable for system more than four user equipmenies described in the present embodiment or more than four cells situation the first mapping relations structure when, step 313a needs to perform, otherwise without carrying out step 313a.

314a, the first user equipment carries out channel estimation according to antenna port and transcoding mark and the sequence number of demodulated reference signal using the demodulated reference signal scrambler sequence of preset length.

Specifically, preferred preset length can be 4 in an embodiment of the present invention, suitable length can be selected according to the need for specific in practice certainly.

When the user equipment or cell in system have eight, it is necessary to which all user equipment or cell, which are divided into two groups, every group, four user equipmenies or cell, use afterwards length for 4 demodulated reference signal（Demodulation Reference Signal, abbreviation DMRS) scrambler sequence progress channel estimation.

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

313b, the first user equipment identifies the sequence number of demodulated reference signal according to antenna port, transcoding, carries out channel estimation. 3 15, first user equipment is demodulated decoding according to channel estimation value to transmission data.In embodiment provided by the present invention, follow-up operation is carried out according to new data indicated value, new data indicated value is merely illustrative in the present invention and indicates to be represented with new data indicated value is 1 using the demodulated reference signal scrambler sequence of limit length；New data indicated value indicates to be represented with new data indicated value is 0 without using the demodulated reference signal scrambler sequence of limit length.Certainly, in actual performing environment, new data indicated value can also be exchanged, i.e., when new data indicated value is 1, performs the operation when new data indicated value in the embodiment of the present invention indicates the demodulated reference signal scrambler sequence without using limit length；When new data indicated value is 0, the operation when new data indicated value in the embodiment of the present invention indicates the demodulated reference signal scrambler sequence using limit length is performed.In whole implementation process, it should the corresponding operation of specific new data indicated value is defined when original execution.

The method for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system.Embodiments of the invention provide a kind of method of interference coordination, it is adaptable to which transmission mode is TM9 or TM 10, when code block number is two, shown in reference picture 4, comprise the following steps：

401st, first base station obtains the first mapping relations.

Specifically, the first mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 with mapping table Form represent.

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

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

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

Specifically, the step 408 includes：First user equipment obtains the first mapping relations according to scheduling configured information.

When the first mapping relations include all mapping table structure of above three mapping table structure that to be user device configuration all, the first user equipment needs which the first mapping table structure of selection learnt according to the instruction of first base station.

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

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

407th, first base station sends Downlink Control Information to the first user equipment, in order to sequence number of first user equipment according to the first mapping relations, Downlink Control Information and demodulated reference signal Channel estimation is carried out to transmission data, state no interference signal is obtained.

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

Specifically, the information of the first code block can be：The redundancy versions of the modulating-coding form of first code block, the new data indicated value of the first code block and the first code block.

The information of second code block can be：The redundancy versions of the modulating-coding form of second code block, the new data indicated value of the second code block and the second code block.

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

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

41 1, when the number of code block is two, the first user equipment is identified according to Downlink Control Information and the currently used antenna port of the first mapping relations acquisition and transcoding.

412nd, the first user equipment carries out channel estimation according to the sequence number of antenna port, transcoding mark and demodulated reference signal.

413rd, the first user equipment is demodulated decoding according to channel estimation value to transmission data.Identical with the explanation in above-described embodiment with the explanation of step identical related content in above-described embodiment in the present embodiment, here is omitted.

For there is four in system or when four user equipmenies or cell, the operating procedure in the present embodiment is identical.

In embodiment provided by the present invention, follow-up operation is carried out according to new data indicated value, new data indicated value is merely illustrative in the present invention and indicates to be represented with new data indicated value is 1 using the demodulated reference signal scrambler sequence of limit length；New data indicated value indicates to be represented with new data indicated value is 0 without using the demodulated reference signal scrambler sequence of limit length.Certainly, in actual performing environment, new data indicated value can also be exchanged, i.e., when new data indicated value is 1, performs the operation when new data indicated value in the embodiment of the present invention indicates the demodulated reference signal scrambler sequence without using limit length；When new data indicated value is 0, the operation when new data indicated value in the embodiment of the present invention indicates the demodulated reference signal scrambler sequence using limit length is performed.In whole implementation process, it should the corresponding operation of specific new data indicated value is defined when original execution. The method for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system.Embodiments of the invention provide a kind of first user equipment 5, shown in reference picture 5, including：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 sequence number of the demodulated reference signal for receiving first base station transmission.Receiving unit 52, is additionally operable to receive the Downlink Control Information that first base station is sent.

The information of second code block can be：Modulating-coding form, the second code block of second code block New data indicated value and the second code block redundancy versions.

First acquisition unit 51, is additionally operable to detect Downlink Control Information, obtains channel indicated value.Judging unit 53, for according to Downlink Control Information, judging the number of code block.

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

First processing units 54, it is additionally operable to when new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of channel indicated value, the first mapping relations and demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

First processing units 54, are additionally operable to according to channel estimation value, and decoding is demodulated to transmission data.

First acquisition unit 51, specifically for according to scheduling configured information, obtaining the first mapping relations.

Further, shown in reference picture 6, first user equipment also includes：Second acquisition unit 65 and second processing unit 56, wherein：

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

Second processing unit 56, is additionally operable to the sequence number according to antenna port, transcoding mark and demodulated reference signal, carries out channel estimation.

Second processing unit 56, is additionally operable to according to channel estimation value, and decoding is demodulated to transmission data.

Further, shown in reference picture 7, first processing units 54 include：Subelement 541 and processing subelement 542 are obtained, wherein：

Subelement 541 is obtained, for being indicated when new data indicated value during the demodulated reference signal scrambler sequence using limit length, is identified according to channel indicated value and the currently used antenna port of the first mapping relations acquisition and transcoding.

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

Further, optionally, shown in reference picture 7, first user equipment also includes：If Unit 57 is put, wherein：

Transmission data are not sent on setting unit 57, the resource location identical resource location in other antenna ports of the resource location with removing currently used antenna port for setting in currently used antenna port.

Optionally, shown in reference picture 8, the first user equipment also includes：3rd acquiring unit 68 and the 3rd processing unit 59, wherein：

3rd acquiring unit 58, for being indicated when new data indicated value during the demodulated reference signal scrambler sequence without using limit length, is identified according to Downlink Control Information and the currently used antenna port of the first mapping relations acquisition and transcoding.

3rd processing unit 59, for the sequence number according to antenna port, transcoding mark and demodulated reference signal, carries out channel estimation.

3rd processing unit 59, is additionally operable to according to channel estimation value, and decoding is demodulated to transmission data.

Specifically, the new data of the second code block is designated as to be designated as 1 with the new data of the second code block in an embodiment of the present invention to represent using the demodulated reference signal scrambler sequence of limit length；The new data of second code block is designated as to be designated as 0 with the new data of the second code block in an embodiment of the present invention to represent without using the demodulated reference signal scrambler sequence of limit length.In relation mapping table in the present embodiment, the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark when can be designated as 0 or 1 with the new data of second code block.Certainly, the new data indicated value for being merely illustrative the second code block herein indicates to be represented for 1 with the new data indicated value using the demodulated reference signal scrambler sequence of limit length, same new data indicated value indicates to be represented for 0 with the new data indicated value without using the demodulated reference signal scrambler sequence of limit length, do not make specific restriction to this, execution corresponding operation can also be mutually brought when new data indicated value correspondence is with specific numeral.

The first user equipment that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system. Embodiments of the invention provide a kind of first base station 6, shown in reference picture 9, including：Acquiring unit 61, receiving unit 62 and transmitting element 63, wherein：

Acquiring unit 61, for obtaining the first mapping relations.

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

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

Acquiring unit 61, is additionally operable to, according to the first information and the first mapping relations, obtain the second mapping relations.

Transmitting element 63, for sending the sequence number of demodulated reference signal to the first user equipment.Transmitting element 63, it is additionally operable to send Downlink Control Information to the first user equipment, in order to which the first user equipment carries out channel estimation according to the sequence number of the first mapping relations, Downlink Control Information and demodulated reference signal to transmission data, state no interference signal is obtained.

Specifically, the new data of the second code block is designated as believing using the demodulation reference of limit length Number scrambler sequence can be designated as 1 to represent with the new data of the second code block in an embodiment of the present invention；The new data of second code block is designated as to be designated as 0 with the new data of the second code block in an embodiment of the present invention to represent without using the demodulated reference signal scrambler sequence of limit length.In relation mapping table in the present embodiment, the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark when can be designated as 0 or 1 with the new data of second code block.Certainly, the new data indicated value for being merely illustrative the second code block herein indicates to be represented for 1 with the new data indicated value using the demodulated reference signal scrambler sequence of limit length, same new data indicated value indicates to be represented for 0 with the new data indicated value without using the demodulated reference signal scrambler sequence of limit length, do not make specific restriction to this, execution corresponding operation can also be mutually brought when new data indicated value correspondence is with specific numeral.

The first base station that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system.Embodiments of the invention provide a kind of first user equipment 7, with reference to shown in Figure 10, including：At least one processor 71, memory 72, communication interface 73 and bus 74, at least one processor 71, memory 72 and communication interface 73 are connected by bus 74 and complete mutual communication, wherein：

The bus 74 can be industry standard architecture（Industry Standard Architecture, referred to as I SA) bus, sunset fore-telling portion apparatus interconnection (P eripheral C omponent Interconnect), referred to as P CI) bus or extended industry-standard architecture（Extended Industry Standard Architecture, referred to as EI SA) bus etc..The bus 74 can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 10 with a thick line, it is not intended that only one bus or a type of bus.Its towel：

Memory 72 is used to store executable program code, and the program code includes computer-managed instruction.Memory 72 may include high-speed RAM memory, it is also possible to also including non-easy The property lost deposits 4 all devices（Non-volatile memory), for example, at least one disk deposits 4 all devices.Processor 71 is probably a central processing unit（Central Processing Unit, referred to as CPU), either specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or it is arranged to one or more integrated circuits of the embodiment of the present invention.

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

Processor 71, is additionally operable to call the program code in memory 72, to perform following operation：

First mapping relations are obtained by least one communication interface 73.

The sequence 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.

Specifically, the information of the first code block can be：The modulating-coding form of first code block, The new data indicated value of first code block and the redundancy versions of the first code block.

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 indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of channel indicated value, 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, decoding is demodulated to transmission data.

Further, processor 71, specifically for according to scheduling configured information, the first mapping relations are obtained by least one communication interface 73.

Optionally, processor 73 is additionally operable to affected below execution：

When the number of code block is two, identified according to Downlink Control Information and the currently used antenna port of the first mapping relations acquisition and transcoding.

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

Further, processor 73 specifically for：

When new data indicated value is indicates the demodulated reference signal scrambler sequence using limit length, identified according to channel indicated value and the currently used antenna port of the first mapping relations acquisition and transcoding.

According to the sequence number of antenna port, transcoding mark and demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

Further, processor 73, are additionally operable to set on the resource location identical resource location in other antenna ports of the resource location in currently used antenna port with removing currently used antenna port and do not send transmission data.

Further, optionally, processor 73 is additionally operable to perform following operation： When new data indicated value is indicates the demodulated reference signal scrambler sequence without using limit length, identified according to Downlink Control Information and the currently used antenna port of the first mapping relations acquisition and transcoding.

The first user equipment that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system.Embodiments of the invention provide a kind of first base station 8, with reference to shown in Figure 11, including：At least one processor 81, memory 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, wherein：

The bus 84 can be industry standard architecture（Industry Standard Architecture, referred to as ISA) bus, sunset fore-telling portion apparatus interconnection (Peripheral Component ), Interconnect referred to as PCI) bus or extended industry-standard architecture (Extended Industry Standard Architecture, referred to as EISA) bus etc..The bus 84 can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 11 with a thick line, it is not intended that only one bus or a type of bus.Its towel：

Memory 82 is used to store executable program code, and the program code includes computer-managed instruction.Memory 82 may include high-speed RAM memory, it is also possible to also deposit 4 all devices including non-volatile（Non-volatile memory), for example, at least one disk deposits 4 all devices.

Processor 81 is probably a central processing unit（Central Processing Unit, referred to as CPU), either specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or it is arranged to one or more integrated circuits of the embodiment of the present invention.

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

Processor 81, is additionally operable to call the program code in memory 82, to perform following operation：

First mapping relations are obtained by least one communication interface 83.

The corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports. The first information that any second base station is sent is received by least one communication interface 83.Wherein, the first information includes but is not limited to：The sequence number and sub-frame set of antenna port, demodulated reference signal；At the time of sub-frame set user indicates that any second base station sends data.

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

Specifically, the sequence number all same of all demodulated reference signals in the second mapping relations.The sequence 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 by least one communication interface 73, in order to which the first user equipment carries out channel estimation according to the sequence number of the first mapping relations, Downlink Control Information and demodulated reference signal to transmission data, state no interference signal is obtained.

The first base station that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system. Embodiments of the invention provide a kind of system of interference coordination, shown in reference picture 12, including：First base station, the first user equipment b and the second base station c, wherein：

First base station a is the first base station in the corresponding embodiments of Fig. 5；First user equipment b is any first user equipment in the corresponding embodiments of Fig. 69.

Or, first base station a is the first base station in the corresponding embodiments of Figure 10；First user equipment b is the first user equipment in the corresponding embodiments of Figure 12.

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

The system for the interference coordination that embodiments of the invention are provided, by redefining the mapping relations between channel indicated value and antenna port, the data flow number of plies and transcoding mark, decoding is demodulated to transmission data using the demodulated reference signal scrambler sequence of preset length, the interference in more minizones and cell in data transmission procedure is effectively reduced.And then, can be with the performance of lifting system.

It is apparent to those skilled in the art that, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional module, in practical application, it can as needed and by above-mentioned functions distribute and be completed by different functional modules, the internal structure of device is divided into different functional modules, to complete all or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the module or unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.

The unit illustrated as separating component can be or may not be physically separate, the part shown as unit can be or may not be physical location, a place can be located at, or can also be distributed on multiple NEs.Can be according to reality Some or all of unit therein is selected to realize the purpose of this embodiment scheme the need for border.

In addition, each functional unit in the application each embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

Described above, above example is only to the technical scheme for illustrating the application, rather than its limitations；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the application.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

Claims

1st, a kind of method of interference coordination, it is characterised in that including：

First user equipment obtains the first mapping relations；Wherein, first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receive the sequence 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；Wherein, the Downlink Control Information includes：The information of the information of first code 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, detect that the Downlink Control Information obtains the new data indicated value of the second code block；

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length；

According to channel estimation value, decoding is demodulated to the transmission data.

2nd, the method according to claim 1, it is characterised in that first user equipment, which obtains the first mapping relations, to be included：

According to scheduling configured information, first mapping relations are obtained.

3rd, method according to claim 1 or 2, it is characterised in that methods described also includes：

When the number of the code block is two, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

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

According to channel estimation value, decoding is demodulated to the transmission data.

4th, according to any described method of claim 13, it is characterized in that, the sequence number according to the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length, including： When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, identified according to the channel indicated value and the currently used antenna port of first mapping relations acquisition and transcoding；

According to the sequence number of the antenna port, transcoding mark and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

5th, method according to claim 4, it is characterized in that, the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, before the demodulated reference signal scrambler sequence progress channel estimation of preset length, in addition to：

Set and do not send transmission data on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

6th, the method according to claim 4 or 5, it is characterised in that methods described also includes：

When the new data indicated value indicates the demodulated reference signal scrambler sequence without using limit length, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

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

According to channel estimation value, decoding is demodulated to the transmission data.

7th, according to any described method of claim 16, it is characterised in that

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

8th, method according to claim 7, it is characterised in that

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

9th, a kind of method of interference coordination, it is characterised in that including：

First base station obtains the first mapping relations；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

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

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

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

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

10th, method according to claim 9, it is characterised in that

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

11, method according to claim 10, it is characterised in that

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

12nd, method according to claim 9, it is characterised in that The sequence number all same of all demodulated reference signals in second mapping relations.

13rd, a kind of first user equipment, it is characterised in that including：

First acquisition unit, for obtaining the first mapping relations；Wherein, first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

Receiving unit, the sequence number for receiving the demodulated reference signal that the first base station is sent；The receiving unit, is additionally operable to receive the Downlink Control Information that the first base station is sent；Wherein, the Downlink Control Information includes：The information of the information of first code block and the second code block；First acquisition unit, is additionally operable to detect the Downlink Control Information, obtains the channel indicated value；

Judging unit, for according to the Downlink Control Information, judging the number of code block；First processing units, for when the number of the code block is one, detecting that the Downlink Control Information obtains the new data indicated value of the second code block；

The first processing units, it is additionally operable to when the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length；

The first processing units, are additionally operable to according to the channel estimation value, and decoding is demodulated to the transmission data.

14th, the first user equipment according to claim 13, it is characterised in that the first acquisition unit specifically for：

According to scheduling configured information, first mapping relations are obtained.

15th, the first user equipment according to claim 13 or 14, it is characterised in that first user equipment also includes：

Second acquisition unit, for when the number of the code block is two, being identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；Second processing unit, is additionally operable to the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, carries out channel estimation；

The second processing unit, is additionally operable to according to channel estimation value, and the transmission data are entered Row demodulating and decoding.

16th, according to any the first described user equipment of claim 13 15, it is characterised in that the first processing units include：

Subelement is obtained, for being indicated when the new data indicated value during demodulated reference signal scrambler sequence using limit length, is identified according to the channel indicated value and the currently used antenna port of first mapping relations acquisition and transcoding；

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

17th, the first user equipment according to claim 16, it is characterised in that first user equipment also includes：

Setting unit, transmission data are not sent for setting on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

18th, the first user equipment according to claim 16 or 17, it is characterised in that first user equipment also includes：

3rd acquiring unit, for being indicated when the new data indicated value during demodulated reference signal scrambler sequence without using limit length, is identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

3rd processing unit, for the sequence number according to the antenna port, transcoding mark and the demodulated reference signal, carries out channel estimation；

3rd processing unit, is additionally operable to according to channel estimation value, and decoding is demodulated to the transmission data.

19th, according to any the first described user equipment of claim 13 18, it is characterised in that first mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, the data flow number of plies and transcoding mark and two code blocks, the corresponding antenna port of channel indicated value, number Identified according to fluid layer number and transcoding；Wherein, first mapping relations are represented in the form of mapping table.

20th, the first user equipment according to claim 19, it is characterised in that the corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports.

21st, a kind of first base station, it is characterised in that including：

Acquiring unit, for obtaining the first mapping relations；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

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

The acquiring unit, is additionally operable to, according to the first information and first mapping relations, obtain the second mapping relations；Wherein, second mapping relations are the mapping relations between cell ID, antenna port, the sequence number of demodulated reference signal and sub-frame mode；

Transmitting element, for sending the sequence number of the demodulated reference signal to the first user equipment；The transmitting element, it is additionally operable to send Downlink Control Information to first user equipment, in order to which first user equipment carries out channel estimation according to the sequence number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data, state no interference signal is obtained.

22nd, first base station according to claim 21, it is characterised in that

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 carry out table in the form of mapping table TF。

23rd, first base station according to claim 22, it is characterised in that

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

24th, first base station according to claim 21, it is characterised in that

The sequence number all same of all demodulated reference signals in second mapping relations.

25th, a kind of first user equipment, it is characterised in that including：At least one processor, memory, communication interface and bus, at least one described processor, memory and communication interface are connected by bus and complete mutual communication, and the memory is used for store program codes, its towel：

The processor, for calling the program code in memory, to perform following operation：First mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are the corresponding relation between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

The sequence 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, the Downlink Control Information includes：The information of the information of first code 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, detect that the Downlink Control Information obtains the new data indicated value of the second code block；

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, according to the sequence number of the channel indicated value, first mapping relations and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length；

According to channel estimation value, decoding is demodulated to the transmission data.

26th, the first user equipment according to claim 25, it is characterised in that described Processor specifically for：

According to scheduling configured information, first mapping relations are obtained by least one described communication interface.

27th, the first user equipment according to claim 25 or 26, it is characterised in that the processor is additionally operable to：

When the number of the code block is two, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

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

According to channel estimation value, decoding is demodulated to the transmission data.

28th, according to any the first described user equipment of claim 25 27, it is characterised in that the processor specifically for：

When the new data indicated value indicates the demodulated reference signal scrambler sequence using limit length, identified according to the channel indicated value and the currently used antenna port of first mapping relations acquisition and transcoding；

According to the sequence number of the antenna port, transcoding mark and the demodulated reference signal, channel estimation is carried out using the demodulated reference signal scrambler sequence of preset length.

29th, the first user equipment according to claim 28, it is characterised in that the processor is additionally operable to：

Set and do not send transmission data on the resource location identical resource location in other antenna ports of the resource location in the currently used antenna port with removing the currently used antenna port.

30th, the first user equipment according to claim 28 or 29, it is characterised in that the processor is additionally operable to：

When the new data indicated value indicates the demodulated reference signal scrambler sequence without using limit length, identified according to the Downlink Control Information and the currently used antenna port of first mapping relations acquisition and transcoding；

According to the sequence number of the antenna port, transcoding mark and the demodulated reference signal, channel estimation is carried out； According to channel estimation value, decoding is demodulated to the transmission data.

31, according to any the first described user equipment of claim 25 30, it is characterised in that first mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

32nd, the first user equipment according to claim 31, it is characterised in that the corresponding antenna port of channel indicated value when the new data of second code block is designated as the demodulated reference signal scrambler sequence using limit length includes：Corresponding resource location identical antenna port or all antenna ports.

33rd, a kind of first base station, it is characterised in that including：At least one processor, memory, communication interface and bus, at least one described processor, memory and communication interface are connected by bus and complete mutual communication, and the memory is used for store program codes, wherein：The processor, for calling the program code in memory, to perform following operation：First mapping relations are obtained by least one described communication interface；Wherein, first mapping relations are the mapping relations between channel indicated value, antenna port, the data flow number of plies and transcoding mark；The transcoding identifies the sequence number for indicating demodulated reference signal；

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

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

The sequence 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 by least one described communication interface, in order to which first user equipment carries out channel estimation according to the sequence number of first mapping relations, the Downlink Control Information and the demodulated reference signal to transmission data, state no interference signal is obtained.

34th, first base station according to claim 33, it is characterised in that

First mapping relations include：In one code block, in the corresponding antenna port of channel indicated value when the corresponding antenna port of channel indicated value, the data flow number of plies when new data of second code block is designated as the demodulated reference signal scrambler sequence without using limit length and transcoding mark are designated as the demodulated reference signal scrambler sequence using limit length with the new data of the second code block, 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 represented in the form of mapping table.

35th, first base station according to claim 34, it is characterised in that

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

36th, first base station according to claim 33, it is characterised in that

The sequence number all same of all demodulated reference signals in second mapping relations.