CN106304126B

CN106304126B - A kind of determination method and device of transmission mode

Info

Publication number: CN106304126B
Application number: CN201510239241.6A
Authority: CN
Inventors: 吴凯
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2015-05-12
Filing date: 2015-05-12
Publication date: 2019-11-08
Anticipated expiration: 2035-05-12
Also published as: WO2016180192A1; CN106304126A

Abstract

The invention discloses a kind of determination method and devices of transmission mode, the transmission mode of interfered cell is determined to the parameter information according to acquisition, it realizes to the blind examination of the transmission mode of interfered cell, the transmission mode of interfered cell is issued without network side, improves the flexibility of network side.The determination method of the transmission mode, comprising: obtain the parameter information for determining interfered cell transmission mode；The transmission mode that interfered cell uses is determined according to the parameter information.

Description

A kind of determination method and device of transmission mode

Technical field

The present invention relates to field of communication technology more particularly to a kind of determination method and devices of transmission mode.

Background technique

In senior long term evolution (Long Term Evolution Advanced, LTE-A) version 12 (Rel12) system In, in order to promote the throughput of system under interference scene, the parameter information that network side can issue some interfered cells is set to user Standby (User Equipment, UE), auxiliary UE interfere adjacent cell the detection (Network for being inhibited or being deleted Assisted Interference Cancellation and Suppression, NAICS).However, issued in network side Having partial parameters information in parameter information is information about dynamic parameters (such as: the transmission mode of interfered cell), if by this part Information about dynamic parameters is issued a notice UE, then for network side, this partial dynamic parameter information will become static parameter information, make It obtains network side and flexibility is lost to the configuration of the partial dynamic parameter information.

In conclusion the parameter information auxiliary UE that network side issues interfered cell in the prior art interferes adjacent cell and carries out Inhibit or delete detection when, if network side will be under partial dynamic parameter information (such as: the transmission mode of interfered cell) UE is issued, network side is will lead to and loses flexibility.

Summary of the invention

The embodiment of the invention provides a kind of determination method and devices of transmission mode, to the parameter information according to acquisition It determines the transmission mode of interfered cell, realizes to the blind examination of the transmission mode of interfered cell, issue interfered cell without network side Transmission mode, improve the flexibility of network side.

The embodiment of the present invention provides a kind of determination method of transmission mode, this method comprises: obtaining for determining that interference is small The parameter information of cell transmission mode；The transmission mode that interfered cell uses is determined according to the parameter information.

In the above method provided in an embodiment of the present invention, by obtaining the parameter letter for determining interfered cell transmission mode Breath, and the transmission mode that interfered cell uses is determined according to the parameter information of acquisition, interference is issued with network side in the prior art The transmission mode of cell will lead to network side forfeiture flexibility and compare, and determine what interfered cell used according to the parameter information of acquisition Transmission mode issues the transmission mode of interfered cell without network side, mentions to realize the blind examination to interfered cell transmission mode The flexibility of high network side.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, the parameter information includes: The transmission mode set that the mark of interfered cell and interfered cell are supported.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, according to the parameter information It determines the transmission mode that interfered cell uses, specifically includes: determining there is the Physical Resource Block (Physical of interference in this cell Resource Block, PRB)；For the every PRB that there is interference in this cell, according to the reception signal on the PRB, in institute It states and determines that the corresponding interfered cell of mark of the interfered cell makes on the PRB in the transmission mode set of interfered cell support Transmission mode.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, according to connecing on the PRB The collection of letters number determines the corresponding interfered cell of mark of the interfered cell in the transmission mode set that the interfered cell is supported The transmission mode used on the PRB, specifically includes: when determining that there are demodulation reference marks in the reception signal on the PRB When (De Modulation Reference Signal, DMRS), the corresponding interfered cell of the mark of the interfered cell is determined The transmission mode used on the PRB is the transmission mode based on DMRS；It is not present when determining in the reception signal on the PRB When DMRS, the transmission mode for determining that the corresponding interfered cell of mark of the interfered cell uses on the PRB is based on public The transmission mould of reference signal (the also known as specific reference signal of cell) (Cell-specific Reference Signal, CRS) Formula.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, if the interfered cell branch It include the transmission mode based on space frequency block coding SFBC in the transmission mode set held, then in the mark for determining the interfered cell Know transmission mode that corresponding interfered cell uses on the PRB be based on the transmission mode of CRS after, this method is also wrapped Include: for the every PRB that there is interference in this cell: detection receives letter respectively on the first receiving antenna and the second receiving antenna Number, for each receiving antenna, to every two contiguous physical downlink sharied signal channel resource unit in the receiving antenna PDSCH-RE carries out joint-detection, determines the corresponding multiple judgement amount vectors of the receiving antenna；Described in being calculated using following equation The mean square error MSE of the corresponding judgement amount vector of second receiving antenna described in the corresponding judgement amount vector sum of first receiving antenna:

Wherein, N_REFor in the PRB transmit PDSCH RE number, in advance by N_REA PDSCH-RE is grouped, and is obtained N_RE/ 2 PDSCH-RE groups, wherein two PDSCH-RE in every group of PDSCH-RE are adjacent PDSCH-RE, C_r1To utilize One receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；C_r2To utilize second Receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；Sentenced according to the MSE It is disconnected to send symbol using the network side that reception signal detection goes out on first receiving antenna and utilize second receiving antenna It is upper to receive the network side that signal detection goes out sends whether symbol is identical, if it is, determining what interfered cell used on the PRB Transmission mode is the transmission mode based on SFBC；Otherwise, it determines the transmission mode that interfered cell uses on the PRB is based on code This transmission mode.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, benefit is judged according to the MSE Symbol is sent and using connecing on second receiving antenna with the network side that signal detection goes out is received on first receiving antenna Whether number network side detected transmission symbol of collecting mail is identical, specifically includes: judging whether the MSE is less than preset threshold, such as Fruit is, it is determined that sends symbol using the network side that signal detection goes out is received on first receiving antenna and utilizes described second It is identical that the network side transmission symbol that signal detection goes out is received on receiving antenna, otherwise, it determines using on first receiving antenna Receive the network side that the network side that signal detection goes out sends symbol and goes out using signal detection is received on second receiving antenna It is different to send symbol.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, determining that the interference is small The transmission mode that the corresponding interfered cell of mark in area uses on the PRB is the party after codebook-based transmission mode Method further include: determine the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein each transmission mode The corresponding judgement reference quantity of each code book；Determine the minimum judgement reference in the corresponding judgement reference quantity of all code books Amount, and determine the corresponding code book of the minimum judgement reference quantity；By biography belonging to the corresponding code book of the minimum judgement reference quantity Defeated mode is determined as the transmission mode that interfered cell uses on the PRB, and according to the corresponding code of the minimum judgement reference quantity The corresponding pre-coding matrix instruction PMI of transmission mode of this determination interfered cell on the PRB.

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, if the interfered cell branch Do not include the transmission mode based on space frequency block coding SFBC in the transmission mode set held, is then determining the interfered cell Identify transmission mode that corresponding interfered cell uses on the PRB be based on the transmission mode of CRS after, this method is also wrapped It includes: determining the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein the transmission mode packet based on CRS Codebook-based transmission mode is included, the corresponding judgement reference quantity of each code book of each codebook-based transmission mode；Really The corresponding minimum judgement reference quantity adjudicated in reference quantity of fixed all code books, and determine that the minimum reference quantity of adjudicating corresponds to Code book；Transmission mode belonging to the corresponding code book of the minimum judgement reference quantity, which is determined as interfered cell on the PRB, to be made Transmission mode, and transmission mould of the interfered cell on the PRB is determined according to the minimum corresponding code book of reference quantity of adjudicating The corresponding pre-coding matrix instruction of formula (Precoding Matrix Indicator, PMI).

In a kind of possible embodiment, in the above method provided in an embodiment of the present invention, codebook-based biography is determined The corresponding judgement reference quantity of all code books under defeated mode, specifically includes: under codebook-based transmission mode each transmit Each code book of mode: signal is received based on code book detection, the corresponding judgement amount sequence of the code book is determined according to the reception signal It arranges, is included in every PDSCH-RE in the judgement amount sequence and carries out detecting identified judgement amount；It will be in the judgement amount sequence The variance yields of all judgement amounts is as the corresponding judgement reference quantity of the code book.

The embodiment of the present invention provides a kind of determining device of transmission mode, comprising: acquiring unit, for obtaining determining interference The parameter information of cell transmission mode；Processing unit is connected to the acquiring unit, dry for being determined according to the parameter information Disturb the transmission mode that cell uses.

In above-mentioned apparatus provided in an embodiment of the present invention, by obtaining the parameter letter for determining interfered cell transmission mode Breath, and the transmission mode that interfered cell uses is determined according to the parameter information of acquisition, interference is issued with network side in the prior art The transmission mode of cell will lead to network side forfeiture flexibility and compare, and determine what interfered cell used according to the parameter information of acquisition Transmission mode issues the transmission mode of interfered cell without network side, mentions to realize the blind examination to interfered cell transmission mode The flexibility of high network side.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the parameter information includes: The transmission mode set that the mark of interfered cell and interfered cell are supported.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the processing unit is specific For: the processing unit determines the Physical Resource Block PRB that there is interference in this cell；For every in the presence of what is interfered in this cell One PRB, the processing unit is according to the reception signal on the PRB, in the transmission mode set that the interfered cell is supported really The transmission mode that the corresponding interfered cell of mark of the fixed interfered cell uses on the PRB.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the processing unit according to Reception signal on the PRB determines the mark of the interfered cell in the transmission mode set that the interfered cell is supported The transmission mode that corresponding interfered cell uses on the PRB, is specifically used for: when the processing unit determines on the PRB There are when demodulation reference mark DMRS, determine the corresponding interfered cell of the mark of the interfered cell in the PRB in reception signal On the transmission mode that uses be the transmission mode based on DMRS；When the processing unit determines in the reception signal on the PRB It is base there is no the transmission mode for when DMRS, determining that the corresponding interfered cell of mark of the interfered cell uses on the PRB In the transmission mode of public reference signal CRS.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, if the interfered cell branch Include the transmission mode based on space frequency block coding SFBC in the transmission mode set held, then the processing unit determine described in The transmission mode that the corresponding interfered cell of mark of interfered cell uses on the PRB be based on the transmission mode of CRS after, The processing unit is also used to: for exist in this cell every PRB: the processing unit of interference in the first receiving antenna and Detection receives signal respectively on second receiving antenna, for each receiving antenna, to every two neighbors in the receiving antenna It manages downlink sharied signal channel resource unit PDSCH-RE and carries out joint-detection, determine the corresponding multiple judgement amounts of the receiving antenna Vector；The processing unit connects using described in the corresponding judgement amount vector sum of following equation calculating first receiving antenna second Receive the mean square error MSE of the corresponding judgement amount vector of antenna:

Wherein, N_REFor in the PRB transmit PDSCH RE number, in advance by N_REA PDSCH-RE is grouped, and is obtained N_RE/ 2 PDSCH-RE groups, wherein two PDSCH-RE in every group of PDSCH-RE are adjacent PDSCH-RE, C_r1To utilize One receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；C_r2To utilize second Receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；The processing unit root Judge to send symbol and utilize described the using receiving the network side that signal detection goes out on first receiving antenna according to the MSE It is whether identical that the network side transmission symbol that signal detection goes out is received on two receiving antennas, if it is, determining interfered cell at this The transmission mode used on PRB is the transmission mode based on SFBC；Otherwise, it determines the transmission that interfered cell uses on the PRB Mode is codebook-based transmission mode.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the processing unit according to MSE judgement sends symbol and utilizes described second using receiving the network side that signal detection goes out on first receiving antenna Receive the network side that signal detection goes out sends whether symbol is identical, and be specifically used for: the processing unit judges institute on receiving antenna It states whether MSE is less than preset threshold, receives the network that signal detection goes out on first receiving antenna if it is, determining the use of Side sends symbol and utilizes the network side transmission symbol that reception signal detection goes out on second receiving antenna identical, otherwise, really Surely symbol is sent using the network side that reception signal detection goes out on first receiving antenna and utilize second receiving antenna The upper network side transmission symbol difference for receiving signal detection and going out.

It is true in the processing unit in above-mentioned apparatus provided in an embodiment of the present invention in a kind of possible embodiment The transmission mode that the corresponding interfered cell of mark of the fixed interfered cell uses on the PRB is codebook-based transmission mould After formula, the processing unit is also used to: the processing unit determines that all code books are corresponding under codebook-based transmission mode Adjudicate reference quantity, wherein the corresponding judgement reference quantity of each code book of each transmission mode；The processing unit determines institute The minimum judgement reference quantity in the corresponding judgement reference quantity of all code books is stated, and determines the corresponding code of the minimum judgement reference quantity This；Transmission mode belonging to the corresponding code book of the minimum judgement reference quantity is determined as interfered cell at this by the processing unit The transmission mode used on PRB, and determine interfered cell on the PRB according to the minimum corresponding code book of reference quantity of adjudicating The corresponding pre-coding matrix instruction PMI of transmission mode.

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, if the interfered cell branch Do not include the transmission mode based on space frequency block coding SFBC in the transmission mode set held, then determines institute in the processing unit State the transmission mode that the corresponding interfered cell of mark of interfered cell uses on the PRB be the transmission mode based on CRS it Afterwards, the processing unit is also used to: the processing unit determines the corresponding judgement of all code books under codebook-based transmission mode Reference quantity, wherein the transmission mode based on CRS includes codebook-based transmission mode, each codebook-based transmission mode The corresponding judgement reference quantity of each code book；The processing unit determines in the corresponding judgement reference quantity of all code books Minimum judgement reference quantity, and determine the corresponding code book of the minimum judgement reference quantity；The processing unit adjudicates the minimum Transmission mode belonging to the corresponding code book of reference quantity is determined as the transmission mode that interfered cell uses on the PRB, and according to institute It states the corresponding code book of minimum judgement reference quantity and determines the corresponding pre-coding matrix instruction of transmission mode of the interfered cell on the PRB PMI。

In a kind of possible embodiment, in above-mentioned apparatus provided in an embodiment of the present invention, the processing unit is determined The corresponding judgement reference quantity of all code books under codebook-based transmission mode, is specifically used for: for codebook-based transmission mode Each code book of each lower transmission mode: the processing unit is based on code book detection and receives signal, according to the reception signal Determine the corresponding judgement amount sequence of the code book, be included in the judgement amount sequence every PDSCH-RE detected determined by sentence Certainly measure；The processing unit is referred to the variance yields of all judgement amounts in the judgement amount sequence as the corresponding judgement of the code book Amount.

Detailed description of the invention

Fig. 1 is the schematic illustration that receiver is deleted in network assistance interference；

Fig. 2 is a kind of schematic flow diagram of the determination method of transmission mode provided in an embodiment of the present invention；

Fig. 3 is a kind of detail flowchart of the determination method of transmission mode provided in an embodiment of the present invention；

Fig. 4 is a kind of structural schematic diagram of the determining device of transmission mode provided in an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the determining device of another transmission mode provided in an embodiment of the present invention.

Specific embodiment

With reference to the accompanying drawing, to a kind of specific reality of the determination method and device of transmission mode provided in an embodiment of the present invention The mode of applying is described in detail.

It should be noted that in LTE-A Rel-12 system, network side (such as: base station) interfered cell mark can be issued (Identifier, ID), public reference signal port number, PB, the information such as PA subset are based on these information, in conjunction with reception signal And channel estimation, the blind examination of the transmission mode of interfered cell can be carried out.Base station can issue the various of interfered cell support simultaneously Transmission mode, the transmission mode set that interfered cell is supported can be with are as follows: { TM1, TM2, TM3, TM4, TM6, TM8, TM9 }.At present Network environment in, CRS port number be 2, the transmission mode set that base station is usually realized are as follows: { TM2, TM3, TM9 } or TM2, TM4, TM9 }, i.e. the realization preferable transmission diversity mode TM2 of robustness, the higher space multiplexing mode TM3 or TM4 of rate, in The transmission mode TM8 or TM9 based on DMRS of robustness and high-speed switching, both of which can be flexibly realized under low speed scene Relatively, general networking can only realize one kind, do not influence under the characteristic on the algorithm of UE, assume in the embodiment of the present invention Transmission mode based on DMRS is TM9.

If the CRS port number of base station configuration is 1, the transmission mode based on CRS is only the single-ended port transmission of TM1 Mode, it is impossible to be other transmission modes based on CRS.

The blind examination of interfered cell transmission mode is that UE interferes the key component deleted in receiver, net in network assistance The disposed of in its entirety process that receiver is deleted in network auxiliary interference carries out channel estimation by channel estimation module first as shown in Figure 1:, estimates The channel of serving cell, and the cell ID of the interfered cell issued according to base station are counted out, most strong jamming detection is carried out, estimates dry Strongest cell ID is disturbed, PDSCH is carried out on interfering the corresponding each PRB of strongest cell ID and there is detection, determines that DMRS exists Port numbers nSCID judges whether there is interference, and PRB is judged one by one.If further judgement is thought to exist on the PRB dry It disturbs, then judges with the presence or absence of DMRS on the PRB, if there is DMRS, then determine that interfered cell for DMRS-based transmission, is gone forward side by side One step carries out the blind examination of PDSCH primary sign；If there is no DMRS, then determine interfered cell for CRS-based transmission.Such as dried fruit Disturbing cell is CRS based transmission, then needing the blind examination of the parameters such as further progress PDSCH primary sign, PA, is carried out later The blind examination and PMI blind examination of CRS based transmission mode, transmission mode blind examination while, also can determine whether the transmission mode (if should Transmission mode is TM3, TM4, TM6) corresponding PMI, it is modulated the blind examination of mode later.This completes all parameters Demapping and detection function are completed in blind examination later.

The transmission mode deleted in receiver is interfered by taking LTE system as an example network assistance below with reference to the embodiment of the present invention Blind examination and PMI blind examination are described in detail, and in other communication systems, the transmission mode of interfered cell may not include all Transmission mode, but the method that can also use the embodiment of the present invention carries out blind examination.

In user equipment (UE) side, the embodiment of the present invention provides a kind of determination method of transmission mode, as shown in Fig. 2, the party Method includes:

Step 202, the parameter information for determining interfered cell transmission mode is obtained；

Step 204, transmission mode that interfered cell uses is determined according to the parameter information of acquisition.

In method provided in an embodiment of the present invention, by obtaining the parameter information for determining interfered cell transmission mode, And the transmission mode that interfered cell uses is determined according to the parameter information of acquisition, interfered cell is issued with network side in the prior art Transmission mode will lead to network side lose flexibility compare, the transmission that interfered cell uses is determined according to the parameter information of acquisition Mode issues the transmission mode of interfered cell without network side to realize the blind examination to interfered cell transmission mode, improves net The flexibility of network side.

It should be noted that the parameter information obtained may include the parameter information that network side issues, it also may include UE The parameter information requested to network side can also include that the ginseng that other node processings obtain in receiver is deleted in network assistance interference Number information.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, the parameter information of acquisition includes: dry The transmission mode set that the mark and interfered cell for disturbing cell are supported.

When it is implemented, the mark for being identified as most strong jamming cell of the interfered cell, specifically, the parameter that UE is obtained The mark of interfered cell in information, which can be to be interfered by network assistance, deletes the most strong jamming that other nodes determine in receiver The mark of cell, certainly, it will be apparent to a skilled person that the mark for the interfered cell that network side issues may include Then the mark of multiple interfered cells interferes to delete in receiver handling by most strong jamming detection node, really in network assistance The mark of most strong jamming cell is made, with the transmission used for determining the corresponding interfered cell of mark of the most strong jamming cell Mode.The parameter information of acquisition can also include: public reference signal port number, PB, PA subset, channel estimation value etc..

It is true according to the parameter information of acquisition in method provided in an embodiment of the present invention in a kind of possible embodiment Determine the transmission mode that interfered cell uses, specifically include: determining there is the Physical Resource Block PRB of interference in this cell；For this There is every PRB of interference in cell, according to the reception signal on the PRB, in the transmission mode set that interfered cell is supported Determine the transmission mode that the corresponding interfered cell of mark of interfered cell uses on the PRB.

When it is implemented, the Physical Resource Block PRB that there is interference in this cell can be interfered to delete by network assistance and be received In machine other nodes (such as: on each PRB shown in Fig. 1 PDSCH exist detection node) determine, carry out transmission mode When blind examination directly on the every PRB that there is interference, interfered cell is determined in the transmission mode set that interfered cell is supported The transmission mode that corresponding interfered cell uses on the PRB is identified, the efficiency for determining transmission mode is improved.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, according to the reception signal on PRB, Determine what the corresponding interfered cell of mark of interfered cell used on the PRB in the transmission mode set that interfered cell is supported Transmission mode specifically includes: when determining in the reception signal on PRB there are when demodulation reference mark DMRS, determining interfered cell The transmission mode that is used on the PRB of the corresponding interfered cell of mark be the transmission mode based on DMRS；When determining on PRB When DMRS is not present in reception signal, the transmission mould that the corresponding interfered cell of mark of interfered cell uses on the PRB is determined Formula is the transmission mode based on public reference signal CRS.

When it is implemented, exist since the scheme transmitted based on DMRS just has DMRS on the PRB of scheduling PDSCH, it is no It is then considered as DMRS to be not present, judge therefore it may only be necessary to whether there is to DMRS, if DMRS exists, interfere The transmission mode that cell uses on the PRB is the transmission mode based on DMRS, such as: TM9, otherwise, interfered cell is in the PRB On the transmission mode that uses be the transmission mode based on CRS, such as: TM2, TM3, TM4.Wherein, judge to receive letter on every PRB Mode in the prior art can be used with the presence or absence of DMRS in number, details are not described herein again.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, if the transmission that interfered cell is supported It include the transmission mode based on space frequency block coding SFBC in set of modes, then in the corresponding interference of mark for determining interfered cell The transmission mode that cell uses on PRB is this method further include: deposit in this cell after the transmission mode based on CRS In every PRB of interference: detection receives signal respectively on the first receiving antenna and the second receiving antenna, receives for each piece-root grafting Antenna carries out joint inspection to every two contiguous physical downlink sharied signal channel resource unit PDSCH-RE in the receiving antenna It surveys, determines the corresponding multiple judgement amount vectors of the receiving antenna；The corresponding judgement of the first receiving antenna is calculated using following equation Measure the mean square error MSE of the corresponding judgement amount vector of the second receiving antenna of vector sum:

Wherein, N_REFor in the PRB transmit PDSCH RE number, in advance by N_REA PDSCH-RE is grouped, and is obtained N_RE/ 2 PDSCH-RE groups, wherein two PDSCH-RE in every group of PDSCH-RE are adjacent PDSCH-RE, C_r1To utilize One receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；C_r2To utilize second Receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；Benefit is judged according to MSE Symbol is sent with the network side that reception signal detection goes out on the first receiving antenna and utilizes reception signal inspection on the second receiving antenna The network side measured sends whether symbol is identical, if it is, determining that the transmission mode that interfered cell uses on the PRB is base In the transmission mode of SFBC；Otherwise, it determines the transmission mode that interfered cell uses on the PRB is codebook-based transmission mould Formula.

It should be noted that if including the transmission mode based on SFBC, example in the transmission mode set that interfered cell is supported Such as: TM2 needs first to judge to interfere small then after judging transmission mode that interfered cell uses for the transmission mode based on CRS Whether the transmission mode that area uses is TM2.Since TM2 uses the transmission plan of SFBC, using the money of two adjacent PDSCH-RE Source carries out joint transmission, the transmission of actually one RANK1, so needing UE in the first receiving antenna and the second receiving antenna On, individually detection receives signal, extracts the reception signal of two adjacent PDSCH-RE, determines that every receiving antenna is corresponding Judgement amount vector, and utilize formulaCalculate the corresponding judgement of the first receiving antenna Measure vector C_r1With the second receiving antenna C_r2The mean square error MSE of corresponding judgement amount vector, since the blind examination of transmission mode is usual It is as unit of 1 PRB, includes multiple RE for being used for transmission PDSCH in each PRB, then MSE is multiple judgement amount mean square errors The average value of difference, wherein calculate the corresponding judgement amount vector C of the first receiving antenna_r1With the second receiving antenna C_r2Corresponding judgement Measure the specific steps of vector are as follows:

In advance by N_REA PDSCH-RE is grouped, and obtains N_RE/ 2 PDSCH-RE groups, wherein in every group of PDSCH-RE Two PDSCH-RE are adjacent PDSCH-RE；

The judgement for two judgement amounts composition that joint-detection obtains is carried out in every group of PDSCH-RE using the first receiving antenna Amount vector is C_r1；The judgement amount for the judgement amount composition that joint-detection obtains is carried out in every group of PDSCH-RE using the second receiving antenna Vector is C_r2。

As more specific embodiment, it is assumed that the number for being used for transmission the RE of PDSCH in a PRB is 100, then in advance First 100 PDSCH-RE are grouped, obtain 50 PDSCH-RE groups, wherein two PDSCH-RE in every group of PDSCH-RE For adjacent PDSCH-RE, specifically, the 1st group of PDSCH-RE is made of the 1st PDSCH-RE and the 2nd PDSCH-RE, and the 2nd Group PDSCH-RE is made of the 3rd PDSCH-RE and the 4th PDSCH-RE, and so on, the 50th group of PDSCH-RE is by the 99th PDSCH-RE and the 100th PDSCH-RE composition, carries out joint-detection in every group of PDSCH-RE using the first receiving antenna and obtains Two judgement amounts form judgement amount vector C_r1, C_r1In include 100 judgement amounts, similarly, using the second receiving antenna at every group PDSCH-RE carries out joint-detection and obtains two judgement amount composition judgement amount vector C_r2, C_r2In equally include 100 judgement amounts.

When it is implemented, being calculated, corresponding the second receiving antenna of judgement amount vector sum of the first receiving antenna is corresponding to be sentenced After the mean square error MSE for certainly measuring vector, the network that reception signal detection goes out on the first receiving antenna is utilized according to MSE judgement Whether side sends symbol and utilizes the network side transmission symbol that reception signal detection goes out on the second receiving antenna identical, if utilized The network side that signal detection goes out is received on first receiving antenna sends symbol and using receiving signal detection on the second receiving antenna Network side transmission symbol out is identical, then the transmission mode of interfered cell is TM2, is not otherwise TM2.Wherein, for each Receiving antenna, carries out joint-detection on two adjacent PDSCH-RE, and detection scheme uses least mean-square error (Minimum Mean Square Error, MMSE) or AF panel based on least mean-square error merge (Minimum Mean Square Error-Interference Rejection Combining, MMSE-IRC) scheme.

Certainly, in the specific implementation, it can also individually be detected on more receiving antennas and receive signal, determined each The corresponding judgement amount vector of root receiving antenna, then calculates MSE, judges the biography that interfered cell uses according to the MSE being calculated Defeated mode improves the accuracy for determining transmission mode.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, judge to connect using first according to MSE It receives and receives the net that the network side that signal detection goes out sends symbol and goes out using signal detection is received on the second receiving antenna on antenna Whether network side transmission symbol is identical, specifically includes: judging whether MSE is less than preset threshold, connects if it is, determining the use of first It receives and receives the net that the network side that signal detection goes out sends symbol and goes out using signal detection is received on the second receiving antenna on antenna Network side send symbol it is identical, otherwise, it determines using on the first receiving antenna receive signal detection go out network side send symbol and Symbol difference is sent using the network side that signal detection goes out is received on the second receiving antenna.

It wherein, is in the first receiving antenna using receiving the network side that signal detection goes out on the first receiving antenna to send symbol Reception signal in detect the symbol that network side (such as: base station) is sent, gone out using signal detection is received on the second receiving antenna Network side to send symbol be the symbol for detecting network side (such as: base station) in the reception signal of the second receiving antenna and sending, Preset threshold can be pre-configured with, and can also be set according to the actual situation, such as: 0.

As more specific embodiment, it is assumed that in a LTE system, UE is scheduled on PRB0-PRB5 and transmits PDSCH data service, it is assumed that CRS port number is 2, CFI=2 at this time, is transmitted in conventional CP conventional subframe, and network side is logical Know that the transmission mode collection of interfered cell is combined into { TM2, TM3, TM9 }.Assuming that UE has been known, adjacent cell is received in PRB2-PRB5 Interference, not by the interference of adjacent cell on PRB0-PRB1, i.e., adjacent cell is most strong jamming cell.

On PRB2-PRB5, PRB determines the transmission mode that adjacent cell uses one by one, namely PRB carries out adjacent cell biography one by one The blind examination of defeated mode has 132 PDSCH-RE on each PRB.Firstly, the detection that DMRS whether there is is carried out, and if so, The transmission mode for thinking adjacent cell is otherwise TM9 continues to judge whether transmission mode is TM2, and it is corresponding to calculate the first receiving antenna The corresponding 132 judgement amount vectors of 132 the second receiving antennas of judgement amount vector sum MSE, by calculated MSE and default Threshold value TH is compared, if MSE is less than preset threshold TH, then it is assumed that the transmission mode of adjacent cell is TM2, is otherwise TM3. PRB carries out above-mentioned process one by one.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, in the mark for determining interfered cell The transmission mode that corresponding interfered cell uses on PRB is this method further include: determine after codebook-based transmission mode The corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein each code book pair of each transmission mode Answer a judgement reference quantity；It determines the minimum judgement reference quantity in the corresponding judgement reference quantity of all code books, and determines that minimum is sentenced The certainly corresponding code book of reference quantity；Transmission mode belonging to the corresponding code book of minimum judgement reference quantity is determined as interfered cell at this The transmission mode used on PRB, and transmission of the interfered cell on the PRB is determined according to the corresponding code book of minimum judgement reference quantity The corresponding pre-coding matrix instruction PMI of mode.

When it is implemented, if base station realizes the transmission mode of all two-ports, in the biography for determining interfered cell After defeated mode is codebook-based transmission mode (such as: TM3, TM4, TM6), it is also necessary to further determine that the biography of interfered cell Defeated mode, since these three transmission modes are all based on the transmission mode of code book, UE needs to know that correct code book just can be carried out Detection, if UE using mistake code book it is assumed that the symbol that UE is detected be it is wrong, if resource all in a PRB The code book for being all based on mistake assumes the detection done, then the serial variance for detecting output will be bigger.In judgement not simultaneous interpretation When defeated mode, it is assumed that the code book of TM3, TM4, TM6 are respectively W_TM3, W_{TM4, m1}, W_{TM6, m2}, wherein { 1,2 } m1 ∈ under TM4, under TM6 M2 ∈ { 0,1,2,3 }, m1, m2 are respectively the code book number of TM4 and TM6.In the transmission mode for determining interfered cell, Ke Yitong It crosses and the code book under different mode is assumed to be correct code book is one by one detected to obtain corresponding judgement amount sequence, will test defeated Judgement amount sequence out calculates variance and distinguishes VAR_TM3, VAR_{TM4, m1}, VAR_{TM6, m2}, the smallest detection output sequence of variance is corresponding Code book is determined as correct code book, and transmission mode corresponding to correct code book is determined as to the transmission mode of interfered cell.

As more preferred embodiment, following formula can be used and determine the transmission mode of interfered cell and corresponding Code book:

Specifically, after calculating variance, different code books can be selected in each mode first and assume corresponding minimum side Difference, then be compared between different modes, selects the smallest variance yields, and minimum variance value while has determined that interference is small The transmission mode in area and corresponding PMI.It is worth noting that determine the corresponding code book of transmission mode that interfered cell uses it Afterwards, determine that corresponding PMI can be by the way of the prior art according to code book, details are not described herein again.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, if the transmission that interfered cell is supported It does not include the transmission mode based on space frequency block coding SFBC in set of modes, then it is corresponding dry in the mark for determining interfered cell Disturbing the transmission mode that cell uses on PRB is this method further include: determine and be based on code book after the transmission mode based on CRS Transmission mode under the corresponding judgement reference quantity of all code books, wherein the transmission mode based on CRS includes codebook-based transmission Mode, the corresponding judgement reference quantity of each code book of each codebook-based transmission mode；Determine that all code books are corresponding The minimum judgement reference quantity in reference quantity is adjudicated, and determines the corresponding code book of minimum judgement reference quantity；Minimum is adjudicated into reference quantity Transmission mode belonging to corresponding code book is determined as the transmission mode that interfered cell uses on the PRB, and is adjudicated according to minimum The corresponding code book of reference quantity determines the corresponding pre-coding matrix instruction PMI of transmission mode of the interfered cell on the PRB.

Certainly, dry determining if in the transmission mode set of interfered cell not including the transmission mode based on SFBC Disturb cell transmission mode be the transmission mode based on CRS after, so that it may the transmission mode for further determining that interfered cell is Codebook-based transmission mode can directly carry out detecting transmission mode, code book and PMI that determining interfered cell uses.

In a kind of possible embodiment, in method provided in an embodiment of the present invention, codebook-based transmission mould is determined The corresponding judgement reference quantity of all code books under formula, specifically includes: for each transmission mode under codebook-based transmission mode Each code book: based on the code book detection receive signal, the corresponding judgement amount sequence of the code book is determined according to the reception signal, should It is included in every PDSCH-RE in judgement amount sequence to carry out detecting identified judgement amount；By judgement amounts all in judgement amount sequence Variance yields as the corresponding judgement reference quantity of the code book.

It can be not necessarily to using conventional linearity test at every when it is implemented, being detected based on each code book and receiving signal It is individually detected on antenna.

As another more specific embodiment, it is assumed that in a LTE system, UE is scheduled in PRB0-PRB5 upload Defeated PDSCH data service, it is assumed that CRS port number is 2, CFI=2 at this time, is transmitted in conventional CP conventional subframe, network side The transmission mode collection of notice interfered cell is combined into { TM2, TM3, TM4, TM6, TM9 }.Assuming that UE has been known, PRB2-PRB5 by The interference for having arrived adjacent cell, not by the interference of adjacent cell on PRB0-PRB1, i.e. adjacent cell is most strong jamming cell.

On PRB2-PRB5, PRB carries out the blind examination of adjacent cell transmission mode one by one, has 132 PDSCH- on each PRB RE.Firstly, the detection that DMRS whether there is is carried out, and if so, thinking that transmission mode is otherwise TM9 is continued to determine whether For transmission mode 2, calculates the corresponding 132 judgement amount vector sums of the first receiving antenna the second receiving antenna corresponding 132 and sentence The MSE for certainly measuring vector, calculated MSE and preset threshold TH are compared, and are thought if MSE is less than preset threshold TH Transmission mode is TM2, otherwise continues the judgement that transmission mode is carried out in TM3, TM4, TM6.In each mode, based on different PMI assumes to carry out the detection of MMSE or MMSE-IRC, calculates variance to 132 judgement amounts of acquisition, select under each mode The corresponding minimum variance value of different PMI, thus determined simultaneously interfered cell transmission mode and corresponding PMI.PRB one by one Carry out above-mentioned process.

The detailed process of the determination method of transmission mode provided in an embodiment of the present invention is as shown in figure 3, with interfered cell Transmission mode set are as follows: for { TM2, TM3, TM4, TM6, TM9 }, comprising:

Step 302, determine that DMRS whether there is.Namely whether there is DMRS in the reception signal of determining each PRB, if depositing 304 are being thened follow the steps, otherwise, is executing step 306.

Step 304, there are DMRS in the reception signal of PRB, it is determined that the transmission mode that interfered cell uses on the PRB For TM9.

Step 306, DMRS is not present in the reception signal of PRB, it is determined that the transmission mould that interfered cell uses on the PRB Formula is the transmission mode based on CRS.

Step 308, when in the transmission mode set of interfered cell including TM2, in the transmission for determining that interfered cell uses Mode be the transmission mode based on CRS after, judge whether the transmission mode that interfered cell uses is the transmission mould based on SFBC Formula, if so, 310 are thened follow the steps, if it is not, thening follow the steps 312.

Step 310, determine that the transmission mode that interfered cell uses is the transmission mode based on SFBC, i.e. TM2.

Step 312, determine that transmission mode that interfered cell uses is codebook-based transmission mode, i.e., TM3, TM4 and TM6, and assume to determine the transmission mode that interfered cell uses based on code book.

The embodiment of the present invention provides a kind of determining device of transmission mode, as shown in Figure 4, comprising: acquiring unit 402 is used In the parameter information for obtaining determining interfered cell transmission mode；Processing unit 404 is connected to acquiring unit 402, for according to institute It states parameter information and determines the transmission mode that interfered cell uses.

In device provided in an embodiment of the present invention, by obtaining the parameter information for determining interfered cell transmission mode, And the transmission mode that interfered cell uses is determined according to the parameter information of acquisition, interfered cell is issued with network side in the prior art Transmission mode will lead to network side lose flexibility compare, the transmission that interfered cell uses is determined according to the parameter information of acquisition Mode issues the transmission mode of interfered cell without network side to realize the blind examination to interfered cell transmission mode, improves net The flexibility of network side.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, parameter information includes: interfered cell Mark and interfered cell support transmission mode set.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, processing unit 404 is specifically used for: Processing unit 404 determines the Physical Resource Block PRB that there is interference in this cell；For in this cell exist interference every PRB, Processing unit 404 determines interfered cell according to the reception signal on the PRB in the transmission mode set that interfered cell is supported Identify the transmission mode that corresponding interfered cell uses on the PRB.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, processing unit 404 is according on PRB Reception signal, interfered cell support transmission mode set in determine interfered cell the corresponding interfered cell of mark at this The transmission mode used on PRB, is specifically used for: when there are demodulation reference symbols in the reception signal that processing unit 404 determines on PRB When number DMRS, the transmission mode for determining that the corresponding interfered cell of mark of interfered cell uses on the PRB is based on DMRS's Transmission mode；When DMRS is not present in the reception signal that processing unit 404 determines on PRB, the mark pair of interfered cell is determined The transmission mode that the interfered cell answered uses on the PRB is the transmission mode based on public reference signal CRS.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, if the transmission that interfered cell is supported Include the transmission mode based on space frequency block coding SFBC in set of modes, then determines the mark of interfered cell in processing unit 404 The transmission mode that corresponding interfered cell uses on PRB is known for after the transmission mode based on CRS, processing unit 404 is also used In: divide on the first receiving antenna and the second receiving antenna for the every PRB: processing unit 404 that there is interference in this cell Signal Jian Ce not be received, for each receiving antenna, to the shared letter of every two contiguous physical downlink in the receiving antenna Road resource unit PDSCH-RE carries out joint-detection, determines the corresponding multiple judgement amount vectors of the receiving antenna；Processing unit 404 The corresponding judgement amount vector of corresponding the second receiving antenna of judgement amount vector sum of the first receiving antenna is calculated using following equation Mean square error MSE:

Wherein, N_REFor in the PRB transmit PDSCH RE number, in advance by N_REA PDSCH-RE is grouped, and is obtained N_RE/ 2 PDSCH-RE groups, wherein two PDSCH-RE in every group of PDSCH-RE are adjacent PDSCH-RE, C_r1To utilize One receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；C_r2To utilize second Receiving antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；Processing unit 404 Symbol is sent and using on the second receiving antenna using the network side that signal detection goes out is received on the first receiving antenna according to MSE judgement Receive the network side that signal detection goes out sends whether symbol is identical, if it is, determining the biography that interfered cell uses on the PRB Defeated mode is the transmission mode based on SFBC；Otherwise, it determines the transmission mode that interfered cell uses on the PRB is based on code book Transmission mode.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, processing unit 404 is sentenced according to MSE It is disconnected to send symbol using the network side that reception signal detection goes out on the first receiving antenna and believed using being received on the second receiving antenna Number network side detected sends whether symbol is identical, and be specifically used for: processing unit 404 judges whether MSE is less than preset threshold, It sends symbol if it is, determining the use of and receiving the network side that signal detection goes out on the first receiving antenna and receives day using second It is identical that the network side transmission symbol that signal detection goes out is received on line, is examined otherwise, it determines utilizing and receiving signal on the first receiving antenna It is different with using the network side transmission symbol of reception signal detection on the second receiving antenna out that the network side measured sends symbol.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, determines and interfere in processing unit 404 The transmission mode that the corresponding interfered cell of mark of cell uses on PRB is processing list after codebook-based transmission mode Member 404 is also used to: processing unit 404 determines the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein The corresponding judgement reference quantity of each code book of each transmission mode；Processing unit 404 determines the corresponding judgement of all code books Minimum judgement reference quantity in reference quantity, and determine the corresponding code book of minimum judgement reference quantity；Processing unit 404 adjudicates minimum Transmission mode belonging to the corresponding code book of reference quantity is determined as the transmission mode that interfered cell uses on the PRB, and according to most The corresponding code book of small judgement reference quantity determines the corresponding pre-coding matrix instruction PMI of transmission mode of the interfered cell on the PRB.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, if the transmission that interfered cell is supported Do not include the transmission mode based on space frequency block coding SFBC in set of modes, then determines interfered cell in processing unit 404 The transmission mode that corresponding interfered cell uses on PRB is identified as after the transmission mode based on CRS, processing unit 404 is also The corresponding judgement reference quantity of all code books under codebook-based transmission mode is determined for: processing unit 404, wherein is based on CRS Transmission mode include codebook-based transmission mode, each code book corresponding one of each codebook-based transmission mode sentences Certainly reference quantity；Processing unit 404 determines the minimum judgement reference quantity in the corresponding judgement reference quantity of all code books, and determines minimum Adjudicate the corresponding code book of reference quantity；Processing unit 404 determines transmission mode belonging to the corresponding code book of minimum judgement reference quantity For the transmission mode that interfered cell uses on the PRB, and interfered cell is determined according to the corresponding code book of minimum judgement reference quantity The corresponding pre-coding matrix instruction PMI of transmission mode on the PRB.

In a kind of possible embodiment, in device provided in an embodiment of the present invention, processing unit 404, which determines, is based on code The corresponding judgement reference quantity of all code books, is specifically used for: for each under codebook-based transmission mode under this transmission mode Each code book of kind transmission mode: processing unit 404 is based on code book detection and receives signal, determines the code according to the reception signal This corresponding judgement amount sequence is included in every PDSCH-RE in the judgement amount sequence and carries out detecting identified judgement amount；Place Unit 404 is managed using the variance yields of judgement amounts all in judgement amount sequence as the corresponding judgement reference quantity of the code book.

The determining device of transmission mode provided in an embodiment of the present invention can be used as a part of UE, be integrated in UE, In, acquiring unit 402 can use transceiver, and processing unit 404 can be using CPU processor etc..

The determining device of another kind transmission mode provided in an embodiment of the present invention is as shown in Figure 5, comprising: processor 51 is deposited Reservoir 52, transceiver 53 and user interface 54, specifically:

Processor 51 executes following process for reading the program in memory 52:

The parameter information for determining interfered cell transmission mode is obtained by transceiver 53；

The transmission mode that interfered cell uses is determined according to the parameter information.

Transceiver 53, for sending and receiving data under the control of processor 51.

Wherein, in Fig. 5, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 51 The various circuits for the memory that the one or more processors and memory 52 of representative represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 53 can be with It is multiple element, that is, includes transmitter and receiver, the unit for communicating over a transmission medium with various other devices is provided. For different user equipmenies, user interface 54, which can also be, external the interface for needing equipment, the equipment packet of connection is inscribed Include but be not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 51, which is responsible for management bus architecture and common processing, memory 52, can store processor 51 and is executing behaviour Used data when making.

In conclusion a kind of determination method and device of transmission mode provided in an embodiment of the present invention, is used for by obtaining It determines the parameter information of interfered cell transmission mode, and the transmission mould that interfered cell uses is determined according to the parameter information of acquisition Formula issues the transmission mode of interfered cell without network side to realize the blind examination to interfered cell transmission mode, improves network The flexibility of side.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) Formula.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of determination method of transmission mode, which is characterized in that this method comprises:

Obtain the parameter information for determining interfered cell transmission mode；

The transmission mode that interfered cell uses is determined according to the parameter information；

Wherein, the parameter information includes: the mark of interfered cell and the transmission mode set that interfered cell is supported；

The transmission mode for determining that interfered cell is used according to the parameter information, specifically includes:

Determine there is the Physical Resource Block PRB of interference in this cell；

It is supported according to the reception signal on the PRB in the interfered cell for the every PRB that there is interference in this cell The transmission mode that the corresponding interfered cell of mark of the interfered cell uses on the PRB is determined in transmission mode set；

The reception signal according on the PRB determines described dry in the transmission mode set that the interfered cell is supported The transmission mode that the corresponding interfered cell of mark of cell uses on the PRB is disturbed, is specifically included:

When determining in the reception signal on the PRB there are when demodulation reference mark DMRS, the mark of the interfered cell is determined The transmission mode that corresponding interfered cell uses on the PRB is the transmission mode based on DMRS；

When determining in the reception signal on the PRB there is no when DMRS, the corresponding interference of the mark of the interfered cell is determined The transmission mode that cell uses on the PRB is the transmission mode based on public reference signal CRS；

If not including the transmission mode based on space frequency block coding SFBC in the transmission mode set that the interfered cell is supported, It is the biography based on CRS in the transmission mode that the corresponding interfered cell of mark for determining the interfered cell uses on the PRB After defeated mode, this method further include:

Determine the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein the transmission mode packet based on CRS Codebook-based transmission mode is included, the corresponding judgement reference quantity of each code book of each codebook-based transmission mode；

It determines the minimum judgement reference quantity in the corresponding judgement reference quantity of all code books, and determines the minimum judgement reference Measure corresponding code book；

Transmission mode belonging to the corresponding code book of the minimum judgement reference quantity is determined as what interfered cell used on the PRB Transmission mode, and transmission mode pair of the interfered cell on the PRB is determined according to the minimum corresponding code book of reference quantity of adjudicating The pre-coding matrix instruction PMI answered.

2. the method according to claim 1, wherein if being wrapped in the transmission mode set that the interfered cell is supported The transmission mode based on space frequency block coding SFBC is included, then in the corresponding interfered cell of mark for determining the interfered cell in institute Stating the transmission mode used on PRB is this method after the transmission mode based on CRS further include:

For the every PRB that there is interference in this cell:

Detection reception signal connects this for each receiving antenna respectively on the first receiving antenna and the second receiving antenna It receives every two contiguous physical downlink sharied signal channel resource unit PDSCH-RE in antenna and carries out joint-detection, determine the reception The corresponding multiple judgement amount vectors of antenna；

It is corresponding that the second receiving antenna described in the corresponding judgement amount vector sum of first receiving antenna is calculated using following equation The mean square error MSE of judgement amount vector:

Wherein, N_REFor in the PRB transmit PDSCH RE number, in advance by N_REA PDSCH-RE is grouped, and obtains N_RE/2 A PDSCH-RE group, wherein two PDSCH-RE in every group of PDSCH-RE are adjacent PDSCH-RE, C_r1To be connect using first Receive the judgement amount vector that antenna carries out the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；C_r2To be received using second Antenna carries out the judgement amount vector for the judgement amount composition that joint-detection obtains in every group of PDSCH-RE；

Judged to send symbol and utilization using the network side that reception signal detection goes out on first receiving antenna according to the MSE It is whether identical that the network side transmission symbol that signal detection goes out is received on second receiving antenna, if it is, determining that interference is small The transmission mode that area uses on the PRB is the transmission mode based on SFBC；Otherwise, it determines interfered cell uses on the PRB Transmission mode be codebook-based transmission mode.

3. according to the method described in claim 2, it is characterized in that, being judged to utilize first receiving antenna according to the MSE The upper network for receiving the network side that signal detection goes out and sending symbol and being gone out using signal detection is received on second receiving antenna Whether side transmission symbol is identical, specifically includes:

Judge whether the MSE is less than preset threshold, receives signal inspection on first receiving antenna if it is, determining the use of The network side measured sends symbol and sends symbol phase using the network side that signal detection goes out is received on second receiving antenna Together, otherwise, it determines sending symbol using the network side that signal detection goes out is received on first receiving antenna and utilizing described the The network side that signal detection goes out is received on two receiving antennas sends symbol difference.

4. according to the method described in claim 2, it is characterized in that, small in the corresponding interference of mark for determining the interfered cell The transmission mode that area uses on the PRB is this method after codebook-based transmission mode further include:

Determine the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein each transmission mode it is every One code book corresponds to a judgement reference quantity；

5. the method according to claim 3 or 4, which is characterized in that determine all code books under codebook-based transmission mode Corresponding judgement reference quantity, specifically includes:

For each code book of each transmission mode under codebook-based transmission mode:

It is detected based on the code book and receives signal, the corresponding judgement amount sequence of the code book, the judgement amount are determined according to the reception signal It is included in every PDSCH-RE in sequence to carry out detecting identified judgement amount；

Using the variance yields of all judgement amounts in the judgement amount sequence as the corresponding judgement reference quantity of the code book.

6. a kind of determining device of transmission mode characterized by comprising

Acquiring unit, for obtaining the parameter information of determining interfered cell transmission mode；

Processing unit is connected to the acquiring unit, for determining transmission mould that interfered cell uses according to the parameter information Formula；

The processing unit is specifically used for:

The processing unit determines the Physical Resource Block PRB that there is interference in this cell；

For the every PRB that there is interference in this cell, the processing unit is according to the reception signal on the PRB, described dry It disturbs and determines what the corresponding interfered cell of mark of the interfered cell used on the PRB in the transmission mode set of cell support Transmission mode；

The processing unit is according to the reception signal on the PRB, in the transmission mode set that the interfered cell is supported really The transmission mode that the corresponding interfered cell of mark of the fixed interfered cell uses on the PRB, is specifically used for:

When the processing unit determines that there are when demodulation reference mark DMRS, determine described do in the reception signal on the PRB The transmission mode that corresponding interfered cell uses on the PRB that identifies for disturbing cell is the transmission mode based on DMRS；

When the processing unit determines, and DMRS is not present in the reception signal on the PRB, the mark of the interfered cell is determined Knowing the transmission mode that corresponding interfered cell uses on the PRB is the transmission mode based on public reference signal CRS；

If not including the transmission mode based on space frequency block coding SFBC in the transmission mode set that the interfered cell is supported, It is in the transmission mode that the processing unit determines that the corresponding interfered cell of mark of the interfered cell uses on the PRB After transmission mode based on CRS, the processing unit is also used to:

The processing unit determines the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein is based on CRS Transmission mode include codebook-based transmission mode, each code book corresponding one of each codebook-based transmission mode sentences Certainly reference quantity；

The processing unit determines the minimum judgement reference quantity in the corresponding judgement reference quantity of all code books, and described in determination The corresponding code book of minimum judgement reference quantity；

Transmission mode belonging to the corresponding code book of the minimum judgement reference quantity is determined as interfered cell and existed by the processing unit The transmission mode used on the PRB, and determine interfered cell on the PRB according to the minimum corresponding code book of reference quantity of adjudicating The corresponding pre-coding matrix instruction PMI of transmission mode.

7. device according to claim 6, which is characterized in that if being wrapped in the transmission mode set that the interfered cell is supported The transmission mode based on space frequency block coding SFBC is included, then determines that the mark of the interfered cell is corresponding in the processing unit The transmission mode that interfered cell uses on the PRB be based on the transmission mode of CRS after, the processing unit is also used to:

For the every PRB that there is interference in this cell:

Detection receives signal to the processing unit respectively on the first receiving antenna and the second receiving antenna, receives for each piece-root grafting Antenna carries out joint inspection to every two contiguous physical downlink sharied signal channel resource unit PDSCH-RE in the receiving antenna It surveys, determines the corresponding multiple judgement amount vectors of the receiving antenna；

The processing unit connects using described in the corresponding judgement amount vector sum of following equation calculating first receiving antenna second Receive the mean square error MSE of the corresponding judgement amount vector of antenna:

The processing unit judges the network side hair gone out using signal detection is received on first receiving antenna according to the MSE It send symbol and utilizes the network side transmission symbol that reception signal detection goes out on second receiving antenna whether identical, if so, Then determine that the transmission mode that interfered cell uses on the PRB is the transmission mode based on SFBC；Otherwise, it determines interfered cell exists The transmission mode used on the PRB is codebook-based transmission mode.

8. device according to claim 7, which is characterized in that the processing unit is according to MSE judgement utilization The network side that signal detection goes out is received on first receiving antenna sends symbol and using receiving signal on second receiving antenna Whether the network side transmission symbol detected is identical, is specifically used for:

The processing unit judges whether the MSE is less than preset threshold, if it is, determining the use of first receiving antenna The upper network for receiving the network side that signal detection goes out and sending symbol and being gone out using signal detection is received on second receiving antenna Side transmission symbol is identical, otherwise, it determines sending symbol using the network side that signal detection goes out is received on first receiving antenna It is different with using the network side transmission symbol that signal detection goes out is received on second receiving antenna.

9. device according to claim 7, which is characterized in that determine the mark of the interfered cell in the processing unit The transmission mode that corresponding interfered cell uses on the PRB is the processing unit after codebook-based transmission mode It is also used to:

The processing unit determines the corresponding judgement reference quantity of all code books under codebook-based transmission mode, wherein each The corresponding judgement reference quantity of each code book of transmission mode；

10. device according to claim 8 or claim 9, which is characterized in that the processing unit determines codebook-based transmission mould The corresponding judgement reference quantity of all code books under formula, is specifically used for:

The processing unit is based on code book detection and receives signal, determines the corresponding judgement amount sequence of the code book according to the reception signal It arranges, is included in every PDSCH-RE in the judgement amount sequence and carries out detecting identified judgement amount；

The processing unit is referred to the variance yields of all judgement amounts in the judgement amount sequence as the corresponding judgement of the code book Amount.