CN106304126A - A kind of determination method and device of transmission mode - Google Patents

Abstract

The invention discloses the determination method and device of a kind of transmission mode, in order to determine the transmission mode of interfered cell according to the parameter information obtained, realize the blind check of the transmission mode to interfered cell, it is not necessary to network side issues the transmission mode of interfered cell, improve the motility of network side.The determination method of described transmission mode, including: obtain the parameter information for determining interfered cell transmission mode；The transmission mode that interfered cell uses is determined according to described parameter information.

Description

A kind of determination method and device of transmission mode

Technical field

The present invention relates to communication technical field, particularly relate to the determination method and device of a kind of transmission mode.

Background technology

At senior Long Term Evolution (Long Term Evolution Advanced, LTE-A) version 12 (Rel12) In system, in order to promote the throughput of system under interference scene, network side can issue the ginseng of some interfered cells Number information to subscriber equipment (User Equipment, UE), auxiliary UE adjacent cell interference is suppressed or Person delete detection (Network Assisted Interference Cancellation and Suppression, NAICS).But, having partial parameters information in the parameter information that network side issues is information about dynamic parameters (such as: the transmission mode of interfered cell), if issuing a notice UE, then by this partial dynamic parameter information For network side, this partial dynamic parameter information will become static parameter information so that network side is to this portion Motility is lost in the configuration dividing information about dynamic parameters.

In sum, in prior art, network side issues the parameter information auxiliary UE of interfered cell to adjacent cell When interference carries out the detection suppressing or deleting, if network side is by partial dynamic parameter information (such as: dry Disturb the transmission mode of community) it is handed down to UE, network side can be caused to lose motility.

Summary of the invention

Embodiments provide the determination method and device of a kind of transmission mode, in order to according to the ginseng obtained Number information determines the transmission mode of interfered cell, it is achieved the blind check to the transmission mode of interfered cell, it is not necessary to net Network side issues the transmission mode of interfered cell, improves the motility of network side.

The embodiment of the present invention provides a kind of determination method of transmission mode, and the method includes: obtains and is used for determining The parameter information of interfered cell transmission mode；The transmission mould that interfered cell uses is determined according to described parameter information Formula.

In the said method that the embodiment of the present invention provides, by obtaining for determining interfered cell transmission mode Parameter information, and determine the transmission mode that interfered cell uses, with prior art according to the parameter information obtained Middle network side issues the transmission mode of interfered cell and network side forfeiture motility can be caused to compare, according to obtain Parameter information determines the transmission mode that interfered cell uses, thus realize interfered cell transmission mode blind Inspection, it is not necessary to network side issues the transmission mode of interfered cell, improves the motility of network side.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described parameter is believed Breath includes: the transmission mode set that the mark of interfered cell and interfered cell are supported.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, according to described ginseng Number information determines the transmission mode that interfered cell uses, and specifically includes: determine the thing that there is interference in this community Reason Resource Block (Physical Resource Block, PRB)；For this community exists each PRB of interference, According to the reception signal on this PRB, determine described in the transmission mode set that described interfered cell is supported The transmission mode that the interfered cell of the mark correspondence of interfered cell uses on this PRB.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, according to described PRB On reception signal, the transmission mode set that described interfered cell is supported determines the mark of described interfered cell Know the transmission mode that corresponding interfered cell uses on this PRB, specifically include: when determining described PRB On reception signal in there is demodulation reference mark (De Modulation Reference Signal, DMRS) Time, determine that the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on this PRB is Transmission mode based on DMRS；When the reception signal determined on described PRB does not exists DMRS, really The transmission mode that the interfered cell of the mark correspondence of fixed described interfered cell uses on this PRB is based on public affairs Reference signal (also known as the specific reference signal in community) (Cell-specific Reference Signal, CRS) altogether Transmission mode.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, if described interference The transmission mode set that community is supported includes transmission mode based on space frequency block coding SFBC, then really The transmission mode that interfered cell corresponding to the mark of fixed described interfered cell uses on described PRB be based on After the transmission mode of CRS, the method also includes: each PRB for there is interference in this community: On first reception antenna and the second reception antenna, detection receives signal respectively, for each reception antenna, right In this reception antenna, each two contiguous physical downlink sharied signal channel resource unit PDSCH-RE joins Close detection, determine multiple judgement amounts vector that this reception antenna is corresponding；Following equation is utilized to calculate described first The mean square error of the judgement amount vector that the second reception antenna described in the judgement amount vector sum that reception antenna is corresponding is corresponding Difference MSE:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|\widetilde{C_{r1}}-\widetilde{C_{r2}}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；According to described MSE Judge to utilize the network side that on described first reception antenna, reception signal detection goes out send symbol and utilize described It is the most identical, if it is, determine that the network side that on second reception antenna, reception signal detection goes out sends symbol The transmission mode that interfered cell uses on this PRB is transmission mode based on SFBC；Otherwise, it determines The transmission mode that interfered cell uses on this PRB is transmission mode based on code book.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, according to described MSE judges to utilize the network side that on described first reception antenna, reception signal detection goes out to send symbol and utilization It is the most identical that the network side that on described second reception antenna, reception signal detection goes out sends symbol, specifically includes: Judge whether described MSE is less than predetermined threshold value, if it is, determine with on described first reception antenna The network side that reception signal detection goes out sends symbol and utilizes reception signal detection on described second reception antenna It is identical that the network side gone out sends symbol, otherwise, it determines utilize reception signal detection on described first reception antenna The network side gone out sends symbol and utilizes the network side that on described second reception antenna, reception signal detection goes out to send out Send symbol different.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, described determining The transmission mode that the interfered cell of the mark correspondence of interfered cell uses on described PRB is based on code book After transmission mode, the method also comprises determining that corresponding the sentencing of all code books under transmission mode based on code book Certainly reference quantity, wherein, the corresponding judgement reference quantity of each code book of each transmission mode；Determine described Minimum judgement reference quantity in the judgement reference quantity that all code books are corresponding, and determine described minimum judgement reference quantity Corresponding code book；It is defined as disturbing little by the transmission mode belonging to code book corresponding for described minimum judgement reference quantity The transmission mode that district uses on this PRB, and determine according to the code book that described minimum judgement reference quantity is corresponding The pre-coding matrix instruction PMI that interfered cell transmission mode on this PRB is corresponding.

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, if described interference The transmission mode set that community is supported does not includes transmission mode based on space frequency block coding SFBC, then exists Determine that the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on described PRB is base After the transmission mode of CRS, the method also comprises determining that all codes under transmission mode based on code book The judgement reference quantity of this correspondence, wherein, transmission mode based on CRS includes transmission mode based on code book, The corresponding judgement reference quantity of each code book of each transmission mode based on code book；Determine described all codes Minimum judgement reference quantity in the judgement reference quantity of this correspondence, and determine that described minimum judgement reference quantity is corresponding Code book；Transmission mode belonging to code book corresponding for described minimum judgement reference quantity is defined as interfered cell at this The transmission mode of the upper use of PRB, and determine interfered cell according to the code book that described minimum judgement reference quantity is corresponding Pre-coding matrix instruction corresponding to transmission mode on this PRB (Precoding Matrix Indicator, PMI)。

In a kind of possible embodiment, in the said method that the embodiment of the present invention provides, determine based on code The judgement reference quantity that under this transmission mode, all code books are corresponding, specifically includes: for transmission based on code book Each code book of each transmission mode under pattern: receive signal based on the detection of this code book, believe according to this reception Number determine the judgement amount sequence that this code book is corresponding, this judgement amount sequence is included in each PDSCH-RE and enters Judgement amount determined by row detection；Using the variance yields of all judgement amounts in described judgement amount sequence as this code book Corresponding judgement reference quantity.

The embodiment of the present invention provides the determination device of a kind of transmission mode, including: acquiring unit, it is used for obtaining Determine the parameter information of interfered cell transmission mode；Processing unit, is connected to described acquiring unit, for root The transmission mode that interfered cell uses is determined according to described parameter information.

In the said apparatus that the embodiment of the present invention provides, by obtaining for determining interfered cell transmission mode Parameter information, and determine the transmission mode that interfered cell uses, with prior art according to the parameter information obtained Middle network side issues the transmission mode of interfered cell and network side forfeiture motility can be caused to compare, according to obtain Parameter information determines the transmission mode that interfered cell uses, thus realize interfered cell transmission mode blind Inspection, it is not necessary to network side issues the transmission mode of interfered cell, improves the motility of network side.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described parameter is believed Breath includes: the transmission mode set that the mark of interfered cell and interfered cell are supported.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described process is single Unit determines the Physical Resource Block PRB that there is interference in this community specifically for: described processing unit；For this There is each PRB of interference in community, described processing unit is according to the reception signal on this PRB, in institute State the interfered cell of the mark correspondence determining described interfered cell in the transmission mode set that interfered cell is supported The transmission mode used on this PRB.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described process is single Unit, according to the reception signal on described PRB, determines in the transmission mode set that described interfered cell is supported The transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on this PRB, specifically for: When there is demodulation reference mark DMRS during described processing unit determines the reception signal on described PRB, Determine the transmission mode that interfered cell corresponding to the mark of described interfered cell uses on this PRB be based on The transmission mode of DMRS；Do not exist in described processing unit determines the reception signal on described PRB During DMRS, determine the transmission that the interfered cell of the mark correspondence of described interfered cell uses on this PRB Pattern is transmission mode based on public reference signal CRS.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, if described interference The transmission mode set that community is supported includes transmission mode based on space frequency block coding SFBC, then in institute State the biography that processing unit determines that the interfered cell identifying correspondence of described interfered cell uses on described PRB After defeated pattern is transmission mode based on CRS, described processing unit is additionally operable to: deposit in this community Each PRB: described processing unit in interference detects on the first reception antenna and the second reception antenna respectively Receive signal, for each reception antenna, to each two contiguous physical downlink in this reception antenna altogether Enjoy channel resource units PDSCH-RE and carry out joint-detection, determine multiple judgements that this reception antenna is corresponding Amount vector；Described processing unit utilizes following equation to calculate the judgement amount vector that described first reception antenna is corresponding Mean square error MSE of the judgement amount vector corresponding with described second reception antenna:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|\widetilde{C_{r1}}-\widetilde{C_{r2}}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；Described processing unit Judge to utilize according to described MSE and on described first reception antenna, receive the network side transmission symbol that signal detection goes out Number receive the network side that goes out of signal detection on described second reception antenna with utilizing to send symbol the most identical, as Fruit is, it is determined that the transmission mode that interfered cell uses on this PRB is transmission mode based on SFBC； Otherwise, it determines the transmission mode that interfered cell uses on this PRB is transmission mode based on code book.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described process is single Unit judges to utilize the network side that on described first reception antenna, reception signal detection goes out to send according to described MSE Symbol is the most identical with utilizing the network side transmission symbol that on described second reception antenna, reception signal detection goes out, Specifically for: described processing unit judges whether described MSE is less than predetermined threshold value, if it is, determine The network side that on described first reception antenna, reception signal detection goes out is utilized to send symbol and utilize described second It is identical, otherwise, it determines utilize described first that the network side that on reception antenna, reception signal detection goes out sends symbol The network side that on reception antenna, reception signal detection goes out sends symbol and connects on described second reception antenna with utilizing It is different that number network side detected of collecting mail sends symbol.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, in described process Unit determines the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on described PRB After transmission mode based on code book, described processing unit is additionally operable to: described processing unit determines based on code The judgement reference quantity that under this transmission mode, all code books are corresponding, wherein, each code of each transmission mode This correspondence one judgement reference quantity；Described processing unit determines in the judgement reference quantity that described all code books are corresponding Minimum judgement reference quantity, and determine the code book that described minimum judgement reference quantity is corresponding；Described processing unit will The described minimum transmission mode belonging to code book adjudicating reference quantity corresponding is defined as interfered cell on this PRB The transmission mode used, and determine that interfered cell is at this according to the code book that described minimum judgement reference quantity is corresponding The pre-coding matrix instruction PMI that transmission mode on PRB is corresponding.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, if described interference The transmission mode set that community is supported does not includes transmission mode based on space frequency block coding SFBC, then exists Described processing unit determines what the interfered cell of the mark correspondence of described interfered cell used on described PRB After transmission mode is transmission mode based on CRS, described processing unit is additionally operable to: described processing unit Determine the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, wherein, based on CRS Transmission mode includes transmission mode based on code book, each code book pair of each transmission mode based on code book Answer a judgement reference quantity；Described processing unit determines in the judgement reference quantity that described all code books are corresponding Little judgement reference quantity, and determine the code book that described minimum judgement reference quantity is corresponding；Described processing unit is by described Transmission mode belonging to code book corresponding to minimum judgement reference quantity is defined as interfered cell and uses on this PRB Transmission mode, and determine that interfered cell is at this PRB according to the code book that described minimum judgement reference quantity is corresponding On transmission mode corresponding pre-coding matrix instruction PMI.

In a kind of possible embodiment, in the said apparatus that the embodiment of the present invention provides, described process is single Unit determines the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, specifically for: for base Each code book of each transmission mode under the transmission mode of code book: described processing unit is examined based on this code book Survey and receive signal, determine, according to this reception signal, the judgement amount sequence that this code book is corresponding, in this judgement amount sequence Be included in each PDSCH-RE detect determined by judgement amount；Described processing unit is by described judgement In amount sequence, the variance yields of all judgement amounts is as judgement reference quantity corresponding to this code book.

Accompanying drawing explanation

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

The schematic flow diagram of the determination method of a kind of transmission mode that Fig. 2 provides for the embodiment of the present invention；

The detail flowchart of the determination method of a kind of transmission mode that Fig. 3 provides for the embodiment of the present invention；

The structural representation of the determination device of a kind of transmission mode that Fig. 4 provides for the embodiment of the present invention；

The structural representation of the determination device of the another kind of transmission mode that Fig. 5 provides for the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawings, the determination method and device to a kind of transmission mode that the embodiment of the present invention provides Detailed description of the invention be described in detail.

It should be noted that in LTE-A Rel-12 system, dry under network side (such as: base station) meeting Disturb the information such as cell ID (Identifier, ID), public reference signal port number, PB, PA subset, base In these information, in conjunction with receiving signal and channel estimation, the blind check of the transmission mode of interfered cell can be carried out. Base station can issue the various transmission modes that interfered cell is supported simultaneously, the transmission mode set that interfered cell is supported Can be: { TM1, TM2, TM3, TM4, TM6, TM8, TM9}.In current network environment, CRS port number is 2, and the transmission mode collection that base station is typically implemented is combined into: TM2, TM3, TM9} or TM2, TM4, TM9}, i.e. realize robustness preferable transmission diversity mode TM2, the spatial reuse that speed is higher Pattern TM3 or TM4, can realize flexibly under middle low speed scene robustness and two-forty switching based on Transmission mode TM8 of DMRS or TM9, relatively, general networking only can realize one to both of which, Under this characteristic, the algorithm of UE is not affected, the embodiment of the present invention is assumed transmission mould based on DMRS Formula is TM9.

If the CRS port number of base station configuration is 1, then transmission mode based on CRS is only TM1 Single port transmission mode, it is impossible to be other transmission mode based on CRS.

The blind check of interfered cell transmission mode is that UE deletes a key in receiver in network assistance interference Part, network assistance is disturbed and is deleted the disposed of in its entirety flow process of receiver as shown in Figure 1: first estimated by channel Module carries out channel estimation, estimates the channel of Serving cell, and the interfered cell issued according to base station is little District ID, carries out the detection of strong jamming, estimates the community ID that interference is the strongest, at the community ID that interference is the strongest Carry out PDSCH on corresponding each PRB and there is detection, determine that DMRS exists port numbers nSCID, sentence Breaking and whether there is interference, PRB judges one by one.If determine whether to think exist on this PRB dry Disturb, then judge whether there is DMRS on this PRB, if there is DMRS, then judge interfered cell as DMRS-based transmits, and carries out PDSCH primary sign blind check further；If there is no DMRS, Then judge that interfered cell is transmitted as CRS-based.If interfered cell is CRS based transmission, then need To carry out PDSCH primary sign, the isoparametric blind check of PA further, carry out CRS based transmission afterwards The blind check of pattern and PMI blind check, also can determine whether while transmission mode blind check this transmission mode (if this biography Defeated pattern is TM3, TM4, TM6) corresponding PMI, it is modulated the blind check of mode afterwards.Thus Complete the blind check of all parameters, complete demapping and detection function afterwards.

Network assistance interference is deleted in receiver as a example by LTE system below in conjunction with the embodiment of the present invention Transmission mode blind check and PMI blind check are described in detail, in other communication system, and the transmission of interfered cell Pattern may not comprise all of transmission mode, but the method being equally useful the embodiment of the present invention carries out blind Inspection.

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

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

Step 204, the parameter information according to obtaining determines the transmission mode that interfered cell uses.

In the method that the embodiment of the present invention provides, by obtaining the parameter for determining interfered cell transmission mode Information, and determine the transmission mode that interfered cell uses, with net in prior art according to the parameter information obtained Network side issues the transmission mode of interfered cell and network side forfeiture motility can be caused to compare, according to the parameter obtained Information determines the transmission mode that interfered cell uses, thus realizes the blind check to interfered cell transmission mode, nothing Need network side to issue the transmission mode of interfered cell, improve the motility of network side.

It should be noted that the parameter information obtained can include the parameter information that network side issues, it is also possible to The parameter information asked to network side including UE, it is also possible to include that network assistance interference deletes in receiver it The parameter information that its node processing obtains.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, the parameter information of acquisition Including: the transmission mode set that the mark of interfered cell and interfered cell are supported.

When being embodied as, the mark being designated strong jamming community of this interfered cell, specifically, UE The mark of interfered cell in the parameter information obtained can be to be deleted in receiver it by network assistance interference The mark of the strong jamming community that its node determines, certainly, it will be apparent to a skilled person that net The mark of the interfered cell that network side issues can include the mark of multiple interfered cell, then does in network assistance Disturb in deletion receiver and detect node processing through strong jamming, determine the mark of strong jamming community, with For determining the transmission mode that interfered cell corresponding to the mark of this strong jamming community uses.The parameter obtained Information can also include: public reference signal port number, PB, PA subset, channel estimation value etc..

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, according to the parameter obtained Information determines the transmission mode that interfered cell uses, and specifically includes: determine the physics that there is interference in this community Resource Block PRB；For this community exists each PRB of interference, according to the reception signal on this PRB, In the transmission mode set that interfered cell is supported, determine that the interfered cell of mark correspondence of interfered cell is at this The transmission mode of the upper use of PRB.

When being embodied as, the Physical Resource Block PRB that there is interference in this community can be disturbed by network assistance Delete other node in receiver (such as: on each PRB shown in Fig. 1, PDSCH exists detection Node) determine, when being transmitted pattern blind check directly on each PRB that there is interference, in interference The transmission mode set that community is supported determining, the interfered cell of mark correspondence of interfered cell is on this PRB The transmission mode used, improves the efficiency determining transmission mode.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, according on PRB Receive signal, the transmission mode set that interfered cell is supported determines the interference that the mark of interfered cell is corresponding The transmission mode that community uses on this PRB, specifically includes: when depositing in the reception signal determined on PRB When demodulation reference mark DMRS, determine that the interfered cell of mark correspondence of interfered cell is on this PRB The transmission mode used is transmission mode based on DMRS；When the reception signal determined on PRB is not deposited When DMRS, determine the transmission mould that the interfered cell of the mark correspondence of interfered cell uses on this PRB Formula is transmission mode based on public reference signal CRS.

When being embodied as, due to the scheme just meeting on the PRB of scheduling PDSCH transmitted based on DMRS With the presence of DMRS, otherwise it is considered as DMRS and does not exists, therefore it may only be necessary to whether DMRS is existed Carrying out judging, if DMRS exists, then the transmission mode that interfered cell uses on this PRB is Transmission mode based on DMRS, such as: TM9, otherwise, the biography that interfered cell uses on this PRB Defeated pattern is transmission mode based on CRS, such as: TM2, TM3, TM4.Wherein, it is judged that each Whether there is DMRS in PRB upper reception signal can be the most superfluous to use mode of the prior art State.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, if interfered cell is supported Transmission mode set include transmission mode based on space frequency block coding SFBC, then determining that interference is little The transmission mode that interfered cell corresponding to the mark in district uses on PRB be transmission mode based on CRS it After, the method also includes: each PRB for there is interference in this community: at the first reception antenna and On two reception antennas, detection receives signal respectively, for each reception antenna, in this reception antenna every two Individual contiguous physical downlink sharied signal channel resource unit PDSCH-RE carries out joint-detection, determines that this connects Receive multiple judgement amounts vector that antenna is corresponding；Following equation is utilized to calculate the judgement amount that the first reception antenna is corresponding Mean square error MSE of the judgement amount vector that vector sum the second reception antenna is corresponding:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|\widetilde{C_{r1}}-\widetilde{C_{r2}}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；Judge according to MSE The network side that on the first reception antenna, reception signal detection goes out is utilized to send symbol and utilize the second reception antenna It is the most identical, if it is, determine that interfered cell is at this that the network side that upper reception signal detection goes out sends symbol The transmission mode of the upper use of PRB is transmission mode based on SFBC；Otherwise, it determines interfered cell is at this The transmission mode of the upper use of PRB is transmission mode based on code book.

If it should be noted that the transmission mode set that interfered cell is supported includes transmission based on SFBC Pattern, such as: TM2, is then judging that the transmission mode that interfered cell uses is transmission mould based on CRS After formula, need first to judge whether the transmission mode that interfered cell uses is TM2.Owing to TM2 uses The transmission plan of SFBC, uses the resource of two adjacent PDSCH-RE to carry out joint transmission, actually The transmission of one RANK1, so needing UE on the first reception antenna and the second reception antenna, distinguishes Individually detection receives signal, extracts the reception signal of adjacent two PDSCH-RE, determines every reception The judgement amount vector that antenna is corresponding, and utilize formulaCalculate the first reception The judgement amount vector C that antenna is corresponding_r1With the second reception antenna C_r2The mean square error of corresponding judgement amount vector MSE, owing to the blind check of transmission mode is typically in units of 1 PRB, each PRB includes many The individual RE for transmitting PDSCH, then MSE is the meansigma methods of multiple judgement amount mean square error, wherein, Calculate the judgement amount vector C that the first reception antenna is corresponding_r1With the second reception antenna C_r2Corresponding judgement amount to Concretely comprising the following steps of amount:

In advance by N_REIndividual PDSCH-RE is grouped, and obtains N_RE/ 2 PDSCH-RE groups, wherein Often two PDSCH-RE in group PDSCH-RE are adjacent PDSCH-RE；

The first reception antenna is utilized to carry out two judgement amount groups that joint-detection obtains often organizing PDSCH-RE The judgement amount vector become is C_r1；The second reception antenna is utilized to carry out joint-detection and obtain often organizing PDSCH-RE To judgement amount composition judgement amount vector be C_r2。

As more specific embodiment, it is assumed that for transmitting the number of the RE of PDSCH in a PRB It is 100, the most in advance 100 PDSCH-RE is grouped, obtain 50 PDSCH-RE groups, The most often two PDSCH-RE in group PDSCH-RE are adjacent PDSCH-RE, specifically, 1st group of PDSCH-RE is made up of the 1st PDSCH-RE and the 2nd PDSCH-RE, the 2nd group PDSCH-RE is made up of the 3rd PDSCH-RE and the 4th PDSCH-RE, the like, the 50th Group PDSCH-RE is made up of the 99th PDSCH-RE and the 100th PDSCH-RE, utilizes first Reception antenna carries out joint-detection and obtains two judgement amounts composition judgement amounts vector often organizing PDSCH-RE C_r1, C_r1In comprise 100 judgement amounts, in like manner, utilize the second reception antenna to enter often organizing PDSCH-RE Row joint-detection obtains two judgement amount composition judgement amount vector C_r2, C_r2In comprise 100 judgement amounts equally.

When being embodied as, it is calculated judgement amount vector sum the second reception antenna pair that the first reception antenna is corresponding After mean square error MSE of the judgement amount vector answered, judge to utilize on the first reception antenna according to this MSE The network side that reception signal detection goes out sends symbol and utilizes reception signal detection on the second reception antenna to go out It is the most identical that network side sends symbol, if, with receiving the network side that signal detection goes out on the first reception antenna It is identical with utilizing the network side transmission symbol that on the second reception antenna, reception signal detection goes out to send symbol, then do The transmission mode disturbing community is TM2, is not the most TM2.Wherein, for each reception antenna, Carrying out joint-detection on two adjacent PDSCH-RE, detection scheme uses least mean-square error (Minimum Mean Square Error, MMSE) or AF panel based on least mean-square error close And (Minimum Mean Square Error-Interference Rejection Combining, MMSE-IRC) Scheme.

Certainly, in the specific implementation, it is also possible on many reception antennas, individually detection receives signal, Determine the judgement amount vector that each reception antenna is corresponding, then calculate MSE, according to calculated MSE Judge the transmission mode that interfered cell uses, improve the accuracy determining transmission mode.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, judge according to MSE The network side that on the first reception antenna, reception signal detection goes out is utilized to send symbol and utilize the second reception antenna It is the most identical that the network side that upper reception signal detection goes out sends symbol, specifically includes: judge that MSE is the least In predetermined threshold value, send out if it is, determine with the network side that on the first reception antenna, reception signal detection goes out It is identical with utilizing the network side transmission symbol that on the second reception antenna, reception signal detection goes out to send symbol, otherwise, Determine with the network side that on the first reception antenna, reception signal detection goes out send symbol and utilize the second reception The network side transmission symbol difference that signal detection goes out is received on antenna.

Wherein, utilize the network side that on the first reception antenna, reception signal detection goes out to send symbol i.e. to connect first Receive and the reception signal of antenna detects the symbol that network side (such as: base station) sends, utilize the second reception sky The network side i.e. detection in the reception signal of the second reception antenna of transmission symbol that signal detection goes out is received on line The symbol that network side (such as: base station) sends, predetermined threshold value can be pre-configured with, it is also possible to according to reality Situation is set, such as: 0.

As more specific embodiment, it is assumed that in a LTE system, UE is scheduled in PRB0-PRB5 Upper transmission PDSCH data service, it is assumed that now CRS port number is 2, CFI=2, conventional at conventional CP Being transmitted in subframe, the transmission mode collection of network side notice interfered cell is combined into { TM2, TM3, TM9}. Assume that UE is known, in the interference that PRB2-PRB5 receives adjacent cell, PRB0-PRB1 does not has Disturbed by adjacent cell, i.e. adjacent cell is strong jamming community.

On PRB2-PRB5, PRB determines the transmission mode that adjacent cell uses, namely PRB one by one one by one Carry out the blind check of adjacent cell transmission mode, each PRB has 132 PDSCH-RE.First, carry out The detection whether DMRS exists, if there is then thinking that the transmission mode of adjacent cell is TM9, otherwise, Continue to judge whether transmission mode is TM2, calculate 132 judgement amount vector sum that the first reception antenna is corresponding The MSE of 132 judgement amount vectors that the second reception antenna is corresponding, by the MSE calculated and predetermined threshold value TH compares, if MSE is less than this predetermined threshold value 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 the method that the embodiment of the present invention provides, determining interfered cell The transmission mode that uses on PRB of interfered cell corresponding to mark be transmission mode based on code book after, The method also comprises determining that the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, wherein, The corresponding judgement reference quantity of each code book of each transmission mode；Determine the judgement ginseng that all code books are corresponding Minimum judgement reference quantity in considering, and determine the code book that minimum judgement reference quantity is corresponding；By minimum judgement ginseng The transmission mode belonging to code book considering correspondence is defined as the transmission mode that interfered cell uses on this PRB, And determine that interfered cell transmission mode on this PRB is corresponding according to the code book that minimum judgement reference quantity is corresponding Pre-coding matrix instruction PMI.

When being embodied as, if base station achieves the transmission mode of all of two-port, then determining that interference is little After the transmission mode in district is transmission mode based on code book (such as: TM3, TM4, TM6), also need The transmission mode of interfered cell to be further determined that, owing to these three transmission mode is all based on the transmission of code book Pattern, UE needs to know that correct code book just can detect, if UE use mistake code book it is assumed that The symbol that UE detects is wrong, if all of resource is all based on the code book of mistake in a PRB Assume the detection done, then the serial variance of detection output will be bigger.When judging different transmission mode, Assuming TM3, the code book of TM4, TM6 is respectively W_TM3, W_{TM4, m1}, W_{TM6, m2}, wherein, TM4 { under 1,2}, TM6, { 0,1,2,3}, m1, m2 are respectively TM4's and TM6 to m2 ∈ to lower m1 ∈ Code book is numbered.When determining the transmission mode of interfered cell, can be by by the code book under different mode one by one It is assumed to be correct code book to carry out detecting the judgement amount sequence obtaining correspondence, by the judgement amount sequence of detection output Calculate variance VAR respectively_TM3, VAR_{TM4, m1}, VAR_{TM6, m2}, the detection output sequence pair of variance minimum The code book answered is judged to correct code book, and the transmission mode corresponding to correct code book is defined as interfered cell Transmission mode.

As more preferred embodiment, it is possible to use equation below determine interfered cell transmission mode and Corresponding code book:

$(\hat{X},\hat{m})=\underset{X\∈\left\{\mathrm{3,4,6}\right\}}{\arg \min }\left\{\underset{m}{\arg \min }\left({\mathrm{Var}}_{\mathrm{TMX},m}\right)\right\}$

Specifically, after calculating variance, first can select different code book in each pattern and assume correspondence Minimum variance value, then compare between different patterns, select the variance yields of minimum, this minimum variance value While determine the transmission mode of interfered cell and corresponding PMI.What deserves to be explained is, determining interference After code book corresponding to transmission mode that community uses, determine that according to code book the PMI of correspondence can use existing The mode of technology, here is omitted.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, if interfered cell is supported Transmission mode set in do not include transmission mode based on space frequency block coding SFBC, then determining interference The transmission mode that the interfered cell of the mark correspondence of community uses on PRB is transmission mode based on CRS Afterwards, the method also comprises determining that the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, Wherein, transmission mode based on CRS includes transmission mode based on code book, each biography based on code book The corresponding judgement reference quantity of each code book of defeated pattern；Determine in the judgement reference quantity that all code books are corresponding Minimum judgement reference quantity, and determine the code book that minimum judgement reference quantity is corresponding；Minimum is adjudicated reference quantity corresponding The transmission mode belonging to code book be defined as the transmission mode that interfered cell uses on this PRB, and according to The minimum code book adjudicating reference quantity corresponding determines interfered cell corresponding the prelisting of the transmission mode on this PRB Code matrix instruction PMI.

Certainly, if the transmission mode set of interfered cell not including transmission mode based on SFBC, then After the transmission mode determining interfered cell is transmission mode based on CRS, it is possible to further determine that The transmission mode of interfered cell is transmission mode based on code book, can directly carry out detection and determine interfered cell Transmission mode, code book and the PMI used.

In a kind of possible embodiment, in the method that the embodiment of the present invention provides, determine based on code book The judgement reference quantity that under transmission mode, all code books are corresponding, specifically includes: for transmission mode based on code book Each code book of each transmission mode lower: receive signal based on the detection of this code book, true according to this reception signal The judgement amount sequence that this code book fixed is corresponding, is included in each PDSCH-RE in this judgement amount sequence and examines Judgement amount determined by survey；Using the variance yields of judgement amounts all in judgement amount sequence as corresponding the sentencing of this code book Certainly reference quantity.

When being embodied as, receive signal based on the detection of each code book and can use the linearity test of routine, it is not necessary to The most individually detect.

As another more specific embodiment, it is assumed that in a LTE system, UE is scheduled in PRB0-PRB5 upper transmission PDSCH data service, it is assumed that now CRS port number is 2, CFI=2, Conventional CP conventional subframe is transmitted, the transmission mode collection of network side notice interfered cell be combined into TM2, TM3, TM4, TM6, TM9}.Assume that UE is known, receive adjacent cell at PRB2-PRB5 Interference, is not disturbed by adjacent cell on PRB0-PRB1, i.e. adjacent cell is strong jamming community.

On PRB2-PRB5, PRB carries out the blind check of adjacent cell transmission mode one by one, on each PRB There are 132 PDSCH-RE.First, carry out the detection whether DMRS exists, if there is then thinking Transmission mode is TM9, otherwise, continues to determine whether as transmission mode 2, calculates the first reception antenna corresponding The MSE of 132 judgement amounts vector corresponding to 132 judgement amount vector sum the second reception antennas, will calculate The MSE and predetermined threshold value TH that go out compare, if MSE less than this predetermined threshold value TH, thinks biography Defeated pattern is TM2, otherwise continues to be transmitted the judgement of pattern in TM3, TM4, TM6.Respectively Under pattern, assume to carry out the detection of MMSE or MMSE-IRC based on different PMI, to obtain 132 judgement amounts calculate variance, select minimum variance value corresponding for PMI different under each pattern, thus Determine the transmission mode of interfered cell and corresponding PMI simultaneously.PRB carries out above-mentioned process one by one.

The embodiment of the present invention provide transmission mode determination method detailed process as it is shown on figure 3, with interference The transmission mode collection of community is combined into: as a example by TM2, TM3, TM4, TM6, TM9}, including:

Step 302, determines whether DMRS exists.Namely whether determine in the reception signal of each PRB There is DMRS, if existing, then perform step 304, otherwise, perform step 306.

, there is DMRS in the reception signal of PRB, it is determined that interfered cell is on this PRB in step 304 The transmission mode used is TM9.

, there is not DMRS in the reception signal of PRB, it is determined that interfered cell is at this PRB in step 306 The transmission mode of upper use is transmission mode based on CRS.

Step 308, when the transmission mode set of interfered cell includes TM2, is determining that interfered cell makes Transmission mode be transmission mode based on CRS after, it is judged that interfered cell use transmission mode be No is transmission mode based on SFBC, the most then perform step 310, if it is not, then perform step 312.

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

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

The determination device of the embodiment of the present invention a kind of transmission mode of offer, as shown in Figure 4, including: obtain single Unit 402, for obtaining the parameter information determining interfered cell transmission mode；Processing unit 404, is connected to Acquiring unit 402, for determining, according to described parameter information, the transmission mode that interfered cell uses.

In the device that the embodiment of the present invention provides, by obtaining the parameter for determining interfered cell transmission mode Information, and determine the transmission mode that interfered cell uses, with net in prior art according to the parameter information obtained Network side issues the transmission mode of interfered cell and network side forfeiture motility can be caused to compare, according to the parameter obtained Information determines the transmission mode that interfered cell uses, thus realizes the blind check to interfered cell transmission mode, nothing Need network side to issue the transmission mode of interfered cell, improve the motility of network side.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, 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 device that the embodiment of the present invention provides, processing unit 404 has Body is used for: processing unit 404 determines the Physical Resource Block PRB that there is interference in this community；For this community The middle each PRB that there is interference, processing unit 404 is according to the reception signal on this PRB, little in interference The transmission mode set that district supports determining, the interfered cell of the mark correspondence of interfered cell makes on this PRB Transmission mode.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, processing unit 404 According to the reception signal on PRB, the transmission mode set that interfered cell is supported determines the mark of interfered cell Know the transmission mode that corresponding interfered cell uses on this PRB, specifically for: when processing unit 404 Determine time the reception signal on PRB exists demodulation reference mark DMRS, determine the mark of interfered cell The transmission mode that corresponding interfered cell uses on this PRB is transmission mode based on DMRS；Work as place Reason unit 404 determines when there is not DMRS in the reception signal on PRB, determines the mark of interfered cell The transmission mode that corresponding interfered cell uses on this PRB is transmission based on public reference signal CRS Pattern.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, if interfered cell is supported Transmission mode set include transmission mode based on space frequency block coding SFBC, then at processing unit The transmission mode that the interfered cell of the 404 mark correspondences determining interfered cell uses on PRB is for based on CRS Transmission mode after, processing unit 404 is additionally operable to: each PRB for there is interference in this community: Processing unit 404 detects respectively on the first reception antenna and the second reception antenna and receives signal, for each Root reception antenna, to each two contiguous physical downlink sharied signal channel resource unit in this reception antenna PDSCH-RE carries out joint-detection, determines multiple judgement amounts vector that this reception antenna is corresponding；Processing unit 404 judgement amount vector sum the second reception antennas utilizing following equation to calculate the first reception antenna corresponding are corresponding Mean square error MSE of judgement amount vector:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|\widetilde{C_{r1}}-\widetilde{C_{r2}}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；Processing unit 404 Judge to utilize according to MSE and on the first reception antenna, receive network side transmission symbol and the utilization that signal detection goes out It is the most identical, if it is, determine that the network side that on second reception antenna, reception signal detection goes out sends symbol The transmission mode that interfered cell uses on this PRB is transmission mode based on SFBC；Otherwise, it determines The transmission mode that interfered cell uses on this PRB is transmission mode based on code book.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, processing unit 404 Judge to utilize according to MSE and receive the network side that goes out of signal detection on the first reception antenna and send symbol and utilize the It is the most identical that the network side that on two reception antennas, reception signal detection goes out sends symbol, specifically for: process single Unit 404 judges that MSE, whether less than predetermined threshold value, connects on the first reception antenna if it is, determine with Number network side detected of collecting mail sends symbol and utilizes the net that on the second reception antenna, reception signal detection goes out It is identical that network side sends symbol, receives, otherwise, it determines utilize, the network side that signal detection goes out on the first reception antenna It is different with utilizing the network side transmission symbol that on the second reception antenna, reception signal detection goes out to send symbol.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, at processing unit 404 Determine that the transmission mode that the interfered cell of the mark correspondence of interfered cell uses on PRB is based on code book After transmission mode, processing unit 404 is additionally operable to: processing unit 404 determines transmission mode based on code book Under judgement reference quantity corresponding to all code books, wherein, corresponding one of each code book of each transmission mode is sentenced Certainly reference quantity；Processing unit 404 determines the minimum judgement reference quantity in the judgement reference quantity that all code books are corresponding, And determine the code book that minimum judgement reference quantity is corresponding；Minimum is adjudicated the code that reference quantity is corresponding by processing unit 404 Transmission mode belonging to Ben is defined as the transmission mode that interfered cell uses on this PRB, and according to minimum The code book adjudicating reference quantity corresponding determines the precoding square that interfered cell transmission mode on this PRB is corresponding Battle array instruction PMI.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, if interfered cell is supported Transmission mode set in do not include transmission mode based on space frequency block coding SFBC, then at processing unit The transmission mode that the interfered cell of the 404 mark correspondences determining interfered cell uses on PRB is for based on CRS Transmission mode after, processing unit 404 is additionally operable to: processing unit 404 determines transmission mould based on code book The judgement reference quantity that under formula, all code books are corresponding, wherein, transmission mode based on CRS includes based on code book Transmission mode, the corresponding judgement reference quantity of each code book of each transmission mode based on code book；Place Reason unit 404 determines the minimum judgement reference quantity in the judgement reference quantity that all code books are corresponding, and determines minimum The code book that judgement reference quantity is corresponding；Minimum is adjudicated the biography belonging to the code book that reference quantity is corresponding by processing unit 404 Defeated pattern is defined as the transmission mode that interfered cell uses on this PRB, and adjudicates reference quantity according to minimum Corresponding code book determines the pre-coding matrix instruction PMI that interfered cell transmission mode on this PRB is corresponding.

In a kind of possible embodiment, in the device that the embodiment of the present invention provides, processing unit 404 is true The judgement reference quantity that under fixed transmission mode based on code book, all code books are corresponding, specifically for: for based on code Each code book of each transmission mode under this transmission mode: processing unit 404 connects based on the detection of this code book The collection of letters number, determines, according to this reception signal, the judgement amount sequence that this code book is corresponding, and this judgement amount sequence includes Judgement amount determined by detecting at each PDSCH-RE；Processing unit 404 is by judgement amount sequence The variance yields of all judgement amounts is as judgement reference quantity corresponding to this code book.

The determination device of the transmission mode that the embodiment of the present invention provides, can be integrated as a part of UE In UE, wherein, acquiring unit 402 can use transceiver, processing unit 404 can use CPU Processor etc..

The determination device of the another kind of transmission mode that the embodiment of the present invention provides is as it is shown in figure 5, include: process Device 51, memorizer 52, transceiver 53 and user interface 54, specifically:

Processor 51, for reading the program in memorizer 52, performs following process:

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

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

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

Wherein, in Figure 5, bus architecture can include bus and the bridge of any number of interconnection, specifically by One or more processors and the various circuit of the memorizer of memorizer 52 representative that processor 51 represents link Together.Bus architecture can also each by such as ancillary equipment, manostat and management circuit or the like Planting other electrical chains to be connected together, these are all to it is known in the art, therefore, the most no longer carry out it Further describe.EBI provides interface.Transceiver 53 can be multiple element, i.e. includes transmitter And receiver, it is provided that for the unit communicated with other devices various over a transmission medium.For different use Family equipment, user interface 54 can also is that can external in connect the interface needing equipment, the equipment bag of connection Include but be not limited to keypad, display, speaker, mike, stick etc..

Processor 51 is responsible for bus architecture and common process, and memorizer 52 can store processor 51 The data used when performing operation.

In sum, the determination method and device of a kind of transmission mode that the embodiment of the present invention provides, by obtaining Take in the parameter information determining interfered cell transmission mode, and determine that interference is little according to the parameter information obtained The transmission mode that district uses, thus realize the blind check to interfered cell transmission mode, it is not necessary to dry under network side Disturb the transmission mode of community, improve the motility of network side.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory and Optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (18)

1. the determination method of a transmission mode, it is characterised in that the method includes:

Obtain the parameter information for determining interfered cell transmission mode；

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

Method the most according to claim 1, it is characterised in that described parameter information includes: interference The transmission mode set that the mark of community and interfered cell are supported.

Method the most according to claim 2, it is characterised in that determine dry according to described parameter information Disturb the transmission mode that community uses, specifically include:

Determine the Physical Resource Block PRB that there is interference in this community；

For this community exists each PRB of interference, according to the reception signal on this PRB, described The transmission mode set that interfered cell is supported determining, the interfered cell of the mark correspondence of described interfered cell exists The transmission mode used on this PRB.

Method the most according to claim 3, it is characterised in that believe according to the reception on described PRB Number, the transmission mode set that described interfered cell is supported determines corresponding the doing of mark of described interfered cell Disturb the transmission mode that community uses on this PRB, specifically include:

When the reception signal determined on described PRB exists demodulation reference mark DMRS, determine described The transmission mode that the interfered cell of the mark correspondence of interfered cell uses on this PRB is based on DMRS Transmission mode；

When the reception signal determined on described PRB does not exists DMRS, determine described interfered cell The transmission mode that the interfered cell of mark correspondence uses on this PRB is based on public reference signal CRS Transmission mode.

Method the most according to claim 4, it is characterised in that if the biography that described interfered cell is supported Defeated set of modes includes transmission mode based on space frequency block coding SFBC, then determining that described interference is little The transmission mode that the interfered cell of the mark correspondence in district uses on described PRB is transmission mould based on CRS After formula, the method also includes:

Each PRB for there is interference in this community:

On the first reception antenna and the second reception antenna, detection receives signal respectively, receives sky for each Line, to each two contiguous physical downlink sharied signal channel resource unit PDSCH-RE in this reception antenna Carry out joint-detection, determine multiple judgement amounts vector that this reception antenna is corresponding；

Following equation is utilized to calculate the second reception described in the judgement amount vector sum that described first reception antenna is corresponding Mean square error MSE of the judgement amount vector that antenna is corresponding:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|{\tilde{C}}_{r1}-{\tilde{C}}_{r2}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；

Judge to utilize the network side that on described first reception antenna, reception signal detection goes out to send out according to described MSE Send symbol and utilizing on described second reception antenna, to receive the network side that goes out of signal detection and send symbol whether phase With, if it is, determine that the transmission mode that interfered cell uses on this PRB is biography based on SFBC Defeated pattern；Otherwise, it determines the transmission mode that interfered cell uses on this PRB is transmission based on code book Pattern.

Method the most according to claim 5, it is characterised in that judge to utilize institute according to described MSE State the network side that on the first reception antenna, reception signal detection goes out send symbol and utilize described second to receive sky It is the most identical that the network side that on line, reception signal detection goes out sends symbol, specifically includes:

Judge whether described MSE is less than predetermined threshold value, if it is, determine with described first to receive sky The network side that on line, reception signal detection goes out sends symbol and utilizes reception signal on described second reception antenna It is identical that the network side detected sends symbol, otherwise, it determines utilize reception signal on described first reception antenna The network side detected sends symbol and utilizes the network that on described second reception antenna, reception signal detection goes out It is different that side sends symbol.

Method the most according to claim 5, it is characterised in that at the mark determining described interfered cell After the transmission mode that the interfered cell of knowledge correspondence uses on described PRB is transmission mode based on code book, The method also includes:

Determining the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, wherein, each passes The corresponding judgement reference quantity of each code book of defeated pattern；

Determine the minimum judgement reference quantity in the judgement reference quantity that described all code books are corresponding, and described in determining The code book that little judgement reference quantity is corresponding；

Transmission mode belonging to code book corresponding for described minimum judgement reference quantity is defined as interfered cell at this The transmission mode of the upper use of PRB, and determine interfered cell according to the code book that described minimum judgement reference quantity is corresponding The pre-coding matrix instruction PMI that transmission mode on this PRB is corresponding.

Method the most according to claim 4, it is characterised in that if the biography that described interfered cell is supported Defeated set of modes does not include transmission mode based on space frequency block coding SFBC, is then determining described interference The transmission mode that the interfered cell of the mark correspondence of community uses on described PRB is transmission based on CRS After pattern, the method also includes:

Determine the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, wherein, based on CRS Transmission mode include transmission mode based on code book, each code book of each transmission mode based on code book A corresponding judgement reference quantity；

Determine the minimum judgement reference quantity in the judgement reference quantity that described all code books are corresponding, and described in determining The code book that little judgement reference quantity is corresponding；

Transmission mode belonging to code book corresponding for described minimum judgement reference quantity is defined as interfered cell at this The transmission mode of the upper use of PRB, and determine interfered cell according to the code book that described minimum judgement reference quantity is corresponding The pre-coding matrix instruction PMI that transmission mode on this PRB is corresponding.

9. according to the method described in claim 7 or 8, it is characterised in that determine transmission based on code book The judgement reference quantity that under pattern, all code books are corresponding, specifically includes:

For each code book of each transmission mode under transmission mode based on code book:

Receive signal based on the detection of this code book, determine, according to this reception signal, the judgement amount sequence that this code book is corresponding Row, this judgement amount sequence is included in each PDSCH-RE detect determined by judgement amount；

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

10. the determination device of a transmission mode, it is characterised in that including:

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

Processing unit, is connected to described acquiring unit, for determining that interfered cell makes according to described parameter information Transmission mode.

11. devices according to claim 10, it is characterised in that described parameter information includes: dry Disturb mark and the transmission mode set of interfered cell support of community.

12. devices according to claim 11, it is characterised in that described processing unit specifically for:

Described processing unit determines the Physical Resource Block PRB that there is interference in this community；

For there is each PRB of interference in this community, described processing unit is according to the reception on this PRB Signal, determines the mark correspondence of described interfered cell in the transmission mode set that described interfered cell is supported The transmission mode that interfered cell uses on this PRB.

13. devices according to claim 12, it is characterised in that described processing unit is according to described Reception signal on PRB, determines described interfered cell in the transmission mode set that described interfered cell is supported The transmission mode that uses on this PRB of interfered cell corresponding to mark, specifically for:

Demodulation reference mark DMRS is there is in described processing unit determines the reception signal on described PRB Time, determine that the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on this PRB is Transmission mode based on DMRS；

When there is not DMRS during described processing unit determines the reception signal on described PRB, determine institute The transmission mode that the interfered cell of the mark correspondence stating interfered cell uses on this PRB is for based on public ginseng Examine the transmission mode of signal CRS.

14. devices according to claim 13, it is characterised in that if what described interfered cell was supported Transmission mode set includes transmission mode based on space frequency block coding SFBC, then at described processing unit Determine that the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on described PRB is base After the transmission mode of CRS, described processing unit is additionally operable to:

Each PRB for there is interference in this community:

Described processing unit detects respectively on the first reception antenna and the second reception antenna and receives signal, for Each reception antenna, to each two contiguous physical downlink sharied signal channel resource unit in this reception antenna PDSCH-RE carries out joint-detection, determines multiple judgement amounts vector that this reception antenna is corresponding；

Described processing unit utilizes following equation to calculate the judgement amount vector sum that described first reception antenna is corresponding Mean square error MSE of the judgement amount vector that described second reception antenna is corresponding:

$\mathrm{MSE}=\frac{1}{N_{\mathrm{RE}}}\underset{1}{\overset{N_{\mathrm{RE}}}{\mathrm{\Σ}}}{\left|\right|{\tilde{C}}_{r1}-{\tilde{C}}_{r2}\left|\right|}^2$

Wherein, N_REFor transmitting the number of the RE of PDSCH in this PRB, in advance by N_REIndividual PDSCH-RE It is grouped, obtains N_RE/ 2 PDSCH-RE groups, the most often two in group PDSCH-RE PDSCH-RE is adjacent PDSCH-RE, C_r1For utilizing the first reception antenna often organizing PDSCH-RE Carry out the judgement amount vector of the judgement amount composition that joint-detection obtains；C_r2For utilizing the second reception antenna often Group PDSCH-RE carries out the judgement amount vector of the judgement amount composition that joint-detection obtains；

Described processing unit judges to utilize reception signal detection on described first reception antenna according to described MSE The network side gone out sends symbol and utilizes the network side that on described second reception antenna, reception signal detection goes out to send out Send symbol the most identical, if it is, determine that the transmission mode that interfered cell uses on this PRB is base Transmission mode in SFBC；Otherwise, it determines the transmission mode that interfered cell uses on this PRB is base Transmission mode in code book.

15. devices according to claim 14, it is characterised in that described processing unit is according to described MSE judges to utilize the network side that on described first reception antenna, reception signal detection goes out to send symbol and utilization It is the most identical that the network side that on described second reception antenna, reception signal detection goes out sends symbol, specifically for:

Described processing unit judges whether described MSE is less than predetermined threshold value, if it is, determine with institute State the network side that on the first reception antenna, reception signal detection goes out send symbol and utilize described second to receive sky It is identical that the network side that on line, reception signal detection goes out sends symbol, otherwise, it determines utilize described first to receive sky The network side that on line, reception signal detection goes out sends symbol and utilizes reception signal on described second reception antenna It is different that the network side detected sends symbol.

16. devices according to claim 14, it is characterised in that determine institute at described processing unit The transmission mode that the interfered cell of the mark correspondence stating interfered cell uses on described PRB is for based on code book Transmission mode after, described processing unit is additionally operable to:

Described processing unit determines the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, its In, the corresponding judgement reference quantity of each code book of each transmission mode；

Described processing unit determines the minimum judgement reference quantity in the judgement reference quantity that described all code books are corresponding, And determine the code book that described minimum judgement reference quantity is corresponding；

Transmission mode belonging to code book corresponding for described minimum judgement reference quantity is defined as by described processing unit The transmission mode that interfered cell uses on this PRB, and adjudicate, according to described minimum, the code that reference quantity is corresponding This determines the pre-coding matrix instruction PMI that interfered cell transmission mode on this PRB is corresponding.

17. devices according to claim 13, it is characterised in that if what described interfered cell was supported Transmission mode set does not include transmission mode based on space frequency block coding SFBC, then processes list described Unit determines that the transmission mode that the interfered cell of the mark correspondence of described interfered cell uses on described PRB is After transmission mode based on CRS, described processing unit is additionally operable to:

Described processing unit determines the judgement reference quantity that under transmission mode based on code book, all code books are corresponding, its In, transmission mode based on CRS includes transmission mode based on code book, each transmission based on code book The corresponding judgement reference quantity of each code book of pattern；

Described processing unit determines the minimum judgement reference quantity in the judgement reference quantity that described all code books are corresponding, And determine the code book that described minimum judgement reference quantity is corresponding；

Transmission mode belonging to code book corresponding for described minimum judgement reference quantity is defined as by described processing unit The transmission mode that interfered cell uses on this PRB, and adjudicate, according to described minimum, the code that reference quantity is corresponding This determines the pre-coding matrix instruction PMI that interfered cell transmission mode on this PRB is corresponding.

18. according to the device described in claim 16 or 17, it is characterised in that described processing unit determines The judgement reference quantity that under transmission mode based on code book, all code books are corresponding, specifically for:

For each code book of each transmission mode under transmission mode based on code book:

Described processing unit receives signal based on the detection of this code book, determines that this code book is corresponding according to this reception signal Judgement amount sequence, this judgement amount sequence is included in each PDSCH-RE detect determined by sentence Certainly amount；

Described processing unit is corresponding as this code book using the variance yields of all judgement amounts in described judgement amount sequence Judgement reference quantity.