CN102781098B - Parameter indicating means, device and parameter determination method, device - Google Patents

Abstract

The invention discloses a kind of transmission parameter indicating means, device and transmission parameter determination method, device, said method includes: transmission parameter is carried out combined coding and generates parameter indication signaling, wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense；Above-mentioned parameter indication signaling is sent to subscriber equipment by Downlink Control Information.The technical scheme provided by the present invention, solve in prior art under SU MIMO mode the problem of the maximum orthogonal transmission that can only realize 2 layers between two nodes, and then reach the effect realizing being transmitted in the case of more demodulation pilot orthogonal under the same community of support between multiple users.

Description

Parameter indicating means, device and parameter determination method, device

Technical field

The present invention relates to the communications field, in particular to a kind of parameter indicating means, device and parameter determination method, Device.

Background technology

In wireless communication technology, when base station side (the node B i.e. eNB of such as evolution) uses many antennas to send data, Message transmission rate can be improved in the way of taking spatial reuse, i.e. use identical running time-frequency resource different at transmitting terminal Aerial position launches different data, and receiving terminal (such as user equipment (UE)) also uses many antennas to receive data.In single user In the case of the resource of all antennas is distributed on same user, this user occupies alone base station side in a transmission intercal The physical resource of distribution, this transmission means is referred to as single user multiple-input, multiple-output (Single User Multiple-Input Multiple-Out-put, referred to as SU-MIMO)；In the case of multi-user, the space resources of different antennae is distributed to not Same user, a user and at least one other user be the physical resource of sharing base side distribution in a transmission intercal, altogether The mode of enjoying can be to be space division multiple access mode or space division multiplexing mode, and this transmission means is referred to as multi-user's multiple-input, multiple-output (Multiple User Multiple-InputMultiple-Out-put, referred to as MU-MIMO), wherein base station side is distributed Physical resource refers to running time-frequency resource.If transmission system to be supported SU-MIMO and MU-MIMO, eNB then to need to UE and provide simultaneously Data under both patterns.UE, when SU-MIMO pattern or MU-MIMO pattern, is both needed to know that eNB transmits MIMO for this UE Order (Rank) used by data.Under SU-MIMO pattern, the resource of all antennas is distributed on same user, transmits MIMO number It is equal to eNB in the order used by transmission MIMO data according to the number of plies used；Under MU-MIMO pattern, corresponding user transmission The number of plies used is less than total number of plies of eNB transmission MIMO data, if SU-MIMO pattern to be carried out and the switching of MU-MIMO, ENB needs the control data sending a notice different for UE at different transmission mode.

The version 8(Release8 of Long Term Evolution (Long-Term Evolution, referred to as LTE)) defined in standard Following three kinds of downlink physical control channels: physical down control format instruction channel (Physical Control Format IndicatorChannel, referred to as PCFICH), physical hybrid automatic repeat request indicator channel (Physical Hybrid AutomaticRetransmission Request Indicator Channel, referred to as PHICH) and physical down control Channel (PhysicalDownlink Control Channel, referred to as PDCCH).Wherein PDCCH controls for bearing downlink Information (DownlinkControl Information, referred to as DCI), including: uplink and downlink schedule information, and ascending power Control information.The form (DCI format) of DCI is divided into following several: DCI format0, DCI format1, DCI format1A、DCI format1B、DCI format1C、DCI format1D、DCI format2、DCI format2A、DCI Format3 and DCI format3A etc.；Wherein the transmission mode 5 of the support MU-MIMO defined in version 8 make use of DCI The Downlink Control Information of format1D, and descending power territory (the Downlink power offset in DCI format1D Field, is expressed as δ_power-offset) for the instruction of power a to(for) user in MU-MIMO pattern halve (i.e.- Information 10log10(2)), because MU-MIMO transmission pattern 5 supports the MU-MIMO transmission of two users, descending by this Power domain, MU-MIMO transmission pattern 5 can support SU-MIMO pattern and the switching at runtime of MU-MIMO pattern, but no matter exists One UE is only supported a transmission flowed by SU-MIMO pattern or this DCI format of MU-MIMO pattern, although LTE Release8 supports the single user transmission of most two streams in transmission mode 4, but the switching being because between transmission mode is only Can be semi-static, so the switching at runtime of single user multiple stream transmission and multi-user transmission can not be accomplished in LTE version 8.

Version 9(Release9 at LTE) in, in order to strengthen descending multi-antenna transmission, introduce double fluid Wave beam forming (Beamforming) transmission mode, and Downlink Control Information adds DCI format2B to support this transmission mode, DCI format2B has the identification bit of a scrambler sequence identity (Scrambling Identity, referred to as SCID) with Supporting two different scrambler sequence, the two scrambler sequence can be distributed to different user by eNB, many at same resource multiplex Individual user.It addition, when only one of which transmission block enables when, the new data that the transmission block of non-enable (Disabled) is corresponding refers to Show antenna port when (New Data Indication, referred to as NDI) bit is also used to refer to single layer transmission.

Version 10(Release10 at LTE) in, in order to further enhance descending multi-antenna transmission, introduce transmission mould Formula 9, transmission mode 9 on the basis of double fluid beamforming (pattern 8), further enhances maximum in compatible LTE version 9 Support the wave beam forming of 8 layers transmission, and Downlink Control Information adds DCI format2C to support this transmission mode, In DCIformat2C, SCID, number of layers and antenna port are designed control signaling by the way of combined coding, and reuses For indicating the SCID bit of scrambler sequence identity in pattern 8.Equally, when only one of which transmission block enables when, non-make Can new data instruction (NDI) bit corresponding to the transmission block of (Disabled) antenna port when being also used to refer to single layer transmission. In version 10, realize orthogonal, no by orthogonal mask (Orthogonal Cover Code, referred to as OCC) between each port The distribution of the OCC code of same port (port 7～14) can unify as shown in table 1, just wherein carrying the difference of demodulated reference signal Hand over and use on frequency division multiplexing (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbol l' Mode according to formula w_p(l') determine, $w_p\left(i\right)=\left\{\begin{array}{cc}{\stackrel{\‾}{w}}_p\left(i\right)& (m\′+n_{\mathrm{PRB}})\mathrm{mod}2=0\\ {\stackrel{\‾}{w}}_p(3-i)& (m\′+n_{\mathrm{PRB}})\mathrm{mod}2=1\end{array}\right.,$ Wherein, m'=0,1,2, respectively In respective figure 2, each physical time-frequency resource block is from the relative position of low to high demodulation pilot tone, n_PRBCorresponding to for physical down Share the fast rope of physical time-frequency resource that channel (Physical Downlink Share Channel, referred to as PDSCH) transmits Draw.

Table 1

Although transmission mode 9 is maximum under SU-MIMO pattern can support that the data of 8 layers are transmitted, but relative to pattern 8, MU-MIMO is not strengthened, i.e. maximum can only support that two users and each user can only be in the case of 1 layer of transmission Demodulation pilot orthogonal.Simultaneously because the demodulated reference signal that transmission mode 9 is relied on is according to cell identity (cell Identity) produce, and the demodulation pilot tone pattern position between pattern 8, pattern 9 times, different nodes is identical, on limit, community During edge, different nodes take pilot tone between the user of same asset and cannot realize orthogonal, are therefore unfavorable for the elimination of interference.Especially In heterogeneous network, there is the most serious interference in macrocell and low power nodes (Low power Node, referred to as LPN).At LTE In version 11, it is proposed that in heterogeneous network, macrocell and low power nodes is made to use the mode of same cells identity, by concentrating Scheduling reduces the interference between macrocell and low power nodes.DCI format2C based on pattern 9 correspondence, two nodes it Between the maximum orthogonal transmission that can only realize 2 layers, the most each node can only with 1 layer transmission time, could realize demodulation pilot tone Orthogonal, greatly limit the gain that cell splitting is brought, for this problem, the most not yet propose effective solution.

Summary of the invention

A kind of parameter indicating means of offer, device and parameter determination method, device are provided, so that Solve one of the problems referred to above less.

According to an aspect of the invention, it is provided a kind of parameter indicating means, including: transmission parameter is combined volume Code generates parameter indication signaling, and wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot tone are opened Pin；Above-mentioned parameter indication signaling is sent to subscriber equipment by Downlink Control Information.

According to another aspect of the present invention, it is provided that a kind of parameter instruction device, including: combined coding module, it is used for Transmission parameter carrying out combined coding and generates parameter indication signaling, wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence Identity, antenna port, pilot-frequency expense；Signaling sending module, for sending out above-mentioned parameter indication signaling by Downlink Control Information Give subscriber equipment.

According to a further aspect of the invention, it is provided that a kind of parameter determination method, including: subscriber equipment receives transmission ginseng The parameter indication signaling that number instruction device is sent by Downlink Control Information；Subscriber equipment is according to above-mentioned parameter indication signaling, really Surely transmitting parameter configuration, wherein, above-mentioned parameter indication signaling is by transmitting parameter instruction device by combining transmission parameter Coding generates, and wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense.

According to a further aspect of the invention, it is provided that a kind of parameter determination device, including: signaling receiver module, it is used for Receive the parameter indication signaling that transmission parameter instruction device is sent by Downlink Control Information；Parameter determination module, for basis Above-mentioned parameter indication signaling, determines transmission parameter configuration, and wherein, above-mentioned parameter indication signaling is passed through by transmitting parameter instruction device Transmission parameter carries out combined coding generation, and wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna end Mouth, pilot-frequency expense.

By the present invention, use the transmission parameters such as the number of plies to transmission, scrambler sequence identity, antenna port, pilot-frequency expense Carry out combined coding and generate parameter indication signaling, and be sent to the scheme of subscriber equipment by Downlink Control Information, solve and show There is in technology under SU-MIMO pattern the problem of the maximum orthogonal transmission that can only realize 2 layers between two nodes, and then reach The effect being transmitted in the case of more demodulation pilot orthogonal is realized between multiple users under support same community.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this Bright schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart of transmission parameter indicating means according to embodiments of the present invention；

The demodulation pilot tone pattern of OCC=2 when Fig. 2 is normal cyclic prefix in the LTE version 10 according to present example；

The demodulation pilot tone pattern of OCC=4 when Fig. 3 is normal cyclic prefix in the LTE version 10 according to present example；

Fig. 4 is the structured flowchart of transmission parameter instruction device according to embodiments of the present invention；

Fig. 5 is the structured flowchart of transmission parameter instruction device according to the preferred embodiment of the invention；

Fig. 6 is the flow chart of transmission parameter determination method according to embodiments of the present invention；

Fig. 7 is the structured flowchart of transmission parameter determination device according to embodiments of the present invention；

Fig. 8 is the structured flowchart transmitting parameter determination device according to the preferred embodiment of the invention.

Detailed description of the invention

Below with reference to accompanying drawing and describe the present invention in detail in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the embodiment in the application and the feature in embodiment can be mutually combined.

Fig. 1 is the flow chart of transmission parameter indicating means according to embodiments of the present invention.As it is shown in figure 1, according to the present invention The transmission parameter indicating means of embodiment includes:

Step S102, carries out combined coding and generates parameter indication signaling transmission parameter, and wherein, transmission parameter includes: pass The defeated number of plies, scrambler sequence identity, antenna port, pilot-frequency expense；

Step S104, is sent to subscriber equipment by above-mentioned parameter indication signaling by Downlink Control Information.

Above-mentioned parameter indicating means, when indicating user device transmissions parameter, can be the number of plies of transmission, scrambler sequence body The parameters such as part, antenna port, pilot-frequency expense carry out combined coding and generate parameter indication signaling, are then sent out by Downlink Control Information Give subscriber equipment.Owing to pilot-frequency expense has been participated in combined coding as transmission parameter by said method, the most permissible Select pilot-frequency expense more flexibly, thus between multi-user, support that the demodulation pilot orthogonal of more layers transmits.

Preferably, step S102 may further include following process: according to above-mentioned transmission parameter determination based on user The layer during transmission of equipment specific reference signals is to the mapping mode of antenna port, and generates parameter instruction letter according to this mapping mode Order.

The transmission parameters such as the number of plies transmitted, scrambler sequence identity, antenna port, pilot-frequency expense are being carried out combined coding After, i.e. can determine that the mapping mode to antenna port of the layer when transmitting based on subscriber equipment specific reference signals, such as, when When number of layers is v, if the port of its correspondence is { p₀,p₁,...p_v-1, then layer i (o≤i≤v-1) corresponds to port p_i.Then Just according to this corresponded manner, parameter indication signaling can be designed, and ultimately generate parameter indication signaling.

Preferably, according to the transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals to antenna port Mapping mode may include that

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)(i) be The data of port p corresponding after respective layer precoding, p ∈ 0,4,5,7,8,9,10}, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},$ For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j Number,For the data of port pj corresponding after respective layer precoding, port corresponding for pj is indicated by indication signaling, and o≤j≤ V-1, v are number of layers, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ For modulation symbol number waiting for transmission on current layer Mesh.

By above-mentioned formula, i.e. can determine that the layer when transmitting based on subscriber equipment specific reference signals is to antenna port Mapping mode, for constructing variable indication signaling provide foundation.

Preferably, can further include following process after step S102: according to the big little finger of toe of the port numbers of distribution Showing that orthogonal mask de-spreads length, when the maximum port numbers of distribution is more than first threshold, subscriber equipment is just using the first length Handing over mask, when the maximum port numbers of distribution is less than or equal to first threshold, subscriber equipment uses the first length or the second length Orthogonal mask, wherein, the first length is more than the second length.

Orthogonal mask despreading length implicitly can be indicated by the maximum port numbers of distribution.Maximum port due to distribution Number the biggest required OCC length is the longest, therefore can set a threshold value (first threshold), when the maximum port numbers of distribution is big When this threshold value, just use the orthogonal mask of longer OCC(the first length), when the maximum port numbers of distribution is less than or equal to this threshold During value, just use the orthogonal mask of shorter OCC(the second length), owing to OCC has backward compatible characteristic, therefore, dividing When the maximum port numbers joined is less than or equal to this threshold value, use longer OCC also possible.It should be noted that owing to OCC props up Hold is a scope, so when the maximum port numbers of distribution continues to increase, it is necessary to Second Threshold, the 3rd threshold value etc. are set Deng, to select longer OCC.In Examples below, with the first length orthogonal mask-length for 2, the second length orthogonal mask-length It is 4 to illustrate.

Preferably, step S102 can further include following process: when only one of which transmission block enables when, will The new data indication bit that the transmission block of non-enable is corresponding is used for carrying out combined coding.

In the above-mentioned methods, owing to adding this parameter of pilot-frequency expense when carrying out combined coding, it is therefore desirable to newly-increased The bit added.When only one of which transmission block enables when, the new data indication bit that the transmission block of non-enable is corresponding is idle , therefore this bit can be reused in and carry out combined coding, thus improve the utilization rate of bit, be also easier to realize.

Below in conjunction with instantiation and Fig. 2, Fig. 3, above preferred embodiment is described in detail.In the following example, Example 1 and example 2 based on the pattern shown in Fig. 2, example 3 and example 4 based on the pattern shown in Fig. 3.Fig. 2, shown in 3 for one Demodulated reference signal in individual Physical Resource Block (Physical Resource Block, referred to as PRB) (DemodulationReference Signal, referred to as DMRS, also referred to as Ue-specific Reference Signal) Mapping pattern, the most each lattice represents a Resource Unit (Resource Element, referred to as RE).

It should be noted that the expense of the demodulation reference mark related in example below be with Fig. 2 or Fig. 3 corresponding to , wherein during the 12RE expense in embodiment 1,2, corresponding to the pattern of Fig. 2 (a), during 24RE expense, corresponding to 2 (b) pattern; During 12RE expense in embodiment 3,4, corresponding to the pattern of Fig. 3 (a), during 24RE expense, corresponding to 3 (b) pattern.

Example 1:

In this example, following information is carried out combined coding: the number of plies of transmission, scrambler sequence identity, antenna port are conciliate Adjusting reference signal expense, the parameter indication signaling structure of generation is as shown in table 2, and parameter indication signaling comprises bit 1,2,3 and 4 and uses In indicating each information.When only one of which transmission block enables when, the new data that the transmission block of non-enable (Disabled) is corresponding Instruction (NDI) bit can be reused in and carry out combined coding.

Table 2

By this parameter indication signaling, the orthogonal transmission of 4 layers maximum can be realized.And in the feelings of different districts identity Under condition, can realize orthogonal by distributing different demodulation pilot packet, and use same cells identity at different nodes Time, then can be by more flexible configuration, it is achieved different layers orthogonal.

Based on above-mentioned parameter indication signaling advice method, further, the length of orthogonal mask (OCC) can be by dividing The port numbers implicit expression notice joined, when comprising port 11 and the port more than 11 in the port numbers of distribution, then uses a length of 4 OCC code, otherwise uses the OCC code of OCC=2 or OCC=4.

Meanwhile, corresponding layer is (based on specific (UE-specific) reference signal of UE to the corresponded manner of antenna port The precoding mode of antenna port) be:

When based on single antenna port transmission, in the case of compatible LTE version 8, version 9, version 10, precoding is permissible It is further defined as y^(p)(i)=x⁽⁰⁾I (), wherein { 0,4,5,7,8,9,10} is the Dan Tian for physical channel data transmission to p ∈ The port numbers of line cap.

When antenna port based on the specific reference signal of UE transmits 2 layers, if the port controlling signaling instruction is end Mouth 7,8, the pre-coding relationships of layer to port isIf controlling the port-for-port 9,10 of signaling instruction, layer Pre-coding relationships to port is $\left[\begin{array}{cc}{y}^{\left(7\right)}& \left(i\right)\\ y^{\left(8\right)}& \left(i\right)\end{array}\right]=\left[\begin{array}{cc}{x}^{\left(0\right)}& \left(i\right)\\ x^{\left(1\right)}& \left(i\right)\end{array}\right].$

When antenna port based on the specific reference signal of UE transmission is more than 2 layers, the pre-coding relationships of layer to port is

$\left[\begin{array}{c}{y}^{\left(i\right)}\left(i\right)\\ y^{\left(8\right)}\left(i\right)\\ .\\ .\\ .\\ y^{(6+v)}\left(i\right)\end{array}\right]=\left[\begin{array}{c}{x}^{\left(0\right)}\left(i\right)\\ x^{\left(1\right)}\left(i\right)\\ .\\ .\\ .\\ x^{(v-1)}\left(i\right)\end{array}\right].$

Above-mentioned formula indexes $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ Represent waiting for transmission on current layer Number of modulation symbols.x^(v)I () represents the modulation symbol of layer v, y^(p)The number of i port p that () is corresponding after representing respective layer precoding According to.

In this embodiment, { 781113} is corresponding to the DMRS position of first group in Fig. 2 (b) for port；Port 9,10,12, 14} is corresponding to second group of DMRS position in Fig. 2 (b).When wherein Fig. 2 (a) respective layer number is less than or equal to 2, port 7,8} DMRS position.

Example 2:

In the present embodiment, following information is carried out combined coding: the number of plies of transmission, scrambler sequence identity, antenna port and Demodulated reference signal expense, the parameter indication signaling structure of generation is as shown in table 3, and parameter indication signaling comprises bit 1,2,3 and 4 For indicating each information.When only one of which transmission block enables when, corresponding newly the counting of transmission block of non-enable (Disabled) Can be reused according to instruction (NDI) bit and carry out combined coding.

Table 3

By this parameter indication signaling, the orthogonal transmission of 8 layers maximum can be realized.And at different nodes, there is difference Cell identity in the case of, can realize orthogonal by distributing different demodulation pilot packet, and use at different nodes During the identity of same cells, then can be by more flexible configuration, it is achieved different layers orthogonal.

Based on above-mentioned parameter indication signaling advice method, further, the length of orthogonal mask (OCC) can be by dividing The port numbers implicit expression notice joined, when comprising port 11 and the port more than 11 in the port numbers of distribution, then uses a length of 4 OCC code, otherwise uses the OCC code of OCC=2 or OCC=4.

Meanwhile, corresponding layer is (based on specific (UE-specific) reference signal of UE to the corresponded manner of antenna port The precoding mode of antenna port) be:

When based on single antenna port transmission, in the case of compatible LTE version 8, version 9, version 10, precoding is permissible It is further defined as y^(p)(i)=x⁽⁰⁾I (), wherein { 0,4,5,7,8,9,10} is the Dan Tian for physical channel data transmission to p ∈ The port numbers of line cap.

When antenna port based on the specific reference signal of UE transmits 2 layers, if the port controlling signaling instruction is end Mouth 7,8, the pre-coding relationships of layer to port isIf the port-for-port 9 of control signaling instruction, 10, the pre-coding relationships of layer to port is $\left[\begin{array}{cc}{y}^{\left(7\right)}& \left(i\right)\\ y^{\left(8\right)}& \left(i\right)\end{array}\right]=\left[\begin{array}{cc}{x}^{\left(0\right)}& \left(i\right)\\ x^{\left(1\right)}& \left(i\right)\end{array}\right].$

When antenna port based on the specific reference signal of UE transmits 3 layers, if the port controlling signaling instruction is end { 7,8,9}, the pre-coding relationships of layer to port is mouthIf controlling the port-for-port of signaling instruction { 7,8,11}, the pre-coding relationships of layer to port isAnd OCC code of based on a length of 4 carry out spreading/ Despreading；If { 9,10,12}, the pre-coding relationships of layer to port is the port-for-port of control signaling instructionAnd OCC code of based on a length of 4 carries out spreading/de-spreading.

When antenna port based on the specific reference signal of UE transmits 4 layers, if the port controlling signaling instruction is end { 7,8,9,10}, the pre-coding relationships of layer to port is mouthWherein v=4；If controlling signaling to refer to { 7,8,11,13}, the pre-coding relationships of layer to port is the port-for-port shownAnd based on a length of The OCC code of 4 carries out spreading/de-spreading；If the port-for-port of control signaling instruction 9,10,12,14}, layer prelisting to port Code relation isAnd OCC code of based on a length of 4 carries out spreading/de-spreading.

When antenna port based on the specific reference signal of UE transmission is more than 4 layers, the pre-coding relationships of layer to port is

$\left[\begin{array}{c}{y}^{\left(i\right)}\left(i\right)\\ y^{\left(8\right)}\left(i\right)\\ .\\ .\\ .\\ y^{(6+v)}\left(i\right)\end{array}\right]=\left[\begin{array}{c}{x}^{\left(0\right)}\left(i\right)\\ x^{\left(1\right)}\left(i\right)\\ .\\ .\\ .\\ x^{(v-1)}\left(i\right)\end{array}\right].$

Above-mentioned formula indexes $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ Represent waiting for transmission on current layer Number of modulation symbols.x^(v)I () represents the modulation symbol of layer v, y^(p)The number of i port p that () is corresponding after representing respective layer precoding According to.

In this embodiment, { 781113} is corresponding to the DMRS position of first group in Fig. 2 (b) for port；Port 9,10,12, 14} is corresponding to second group of DMRS position in Fig. 2 (b).When wherein Fig. 2 (a) respective layer number is less than or equal to 2, port 7,8} DMRS position.

Embodiment 3:

In this example, following information is carried out combined coding: the number of plies of transmission, scrambler sequence identity, antenna port are conciliate Adjusting reference signal expense, the parameter indication signaling structure of generation is as shown in table 4, parameter indication signaling comprise bit 1,2 and 3 for Indicate each information.When only one of which transmission block enables when, the new data that the transmission block of non-enable (Disabled) is corresponding refers to Show that (NDI) bit can be reused in and carry out combined coding.

Table 4

In table, when number of layers≤4, DMRS use 12 RE pattern, when number of layers > 4 time, use 24 RE figure Sample.

Based on above-mentioned parameter indication signaling advice method, further, the length of orthogonal mask (OCC) is fixed as 4.

Above-mentioned transmission parameter signaling advice method, is with in Fig. 3, first group of DMRS corresponding ports be 781113}, Two groups of ports are that { carrying out as a example by 9101214} illustrating, in actual application, two groups of ports can also be respectively first group of port 78910}, second group of port 11121314}, when using the packet mode described in the latter, only need to by table according to packet side Formula correspondence amendment 77；8——8；11——9；13——10；9——11；10——12；12——13；14——14. Wherein, pattern is pattern shown in Fig. 3 (b) shown in Fig. 3 (a) subset, DMRS when using for only first group of port Pattern.

If the port of distribution is respectively { P during K layer₀,P₁,...P_K-1, then layer to the corresponding relation of port is, layer k, 0≤k ≤ K-1 corresponds to port P_k.Such as, when dicode word enables, state 2 support for 3 layers of transmission, port be 7,8,11}, then table Show p₀=7, p₁=8, p₂=11；Now layer 0, corresponding ports 7, layer 1 corresponding ports 8, layer 2 corresponding ports 11.

Example 4:

In the present embodiment, the one or more information in following information are carried out combined coding: the number of plies of transmission, scrambler sequence Row identity, antenna port and demodulated reference signal expense, the parameter indication signaling structure of generation is as shown in table 5, parameter instruction letter Order comprises bit 1,2,3 and 4 for indicating each information.When only one of which transmission block enables when, non-enable (Disabled) New data instruction (NDI) bit corresponding to transmission block can be reused in and carry out combined coding.

Table 5

Advice method based on above-mentioned parameter indication signaling, further, the length of orthogonal mask (OCC) is fixed as 4.

At above-mentioned transmission parameter signaling advice method, be with in Fig. 3, first group of DMRS corresponding ports be 781113}, Second group of port is that { carrying out as a example by 9101214} illustrating, in actual application, two groups of ports can also be respectively first group of port 78910}, second group of port 11121314}, when using the packet mode described in the latter, only need to by table according to packet side Formula correspondence amendment 77；8——8；11——9；13——10；9——11；10——12；12——13；14——14. Wherein pattern is pattern shown in Fig. 3 (b) shown in Fig. 3 (a) subset, DMRS figure when using for only first group of port Sample.

If the port of distribution is respectively { P during K layer₀,P₁,...P_K-1, then layer to the corresponding relation of port is, layer k, 0≤k ≤ K-1 corresponds to port P_k.Maximum in this mode support that 4 user's multiplexings altogether (now every user 1 or 2 layers) are orthogonal multiple With；And when there is client layer more than 2, maximum only 2 user's multiplexings of permission, every user is less than 4 layers.During port assignment Should ensure that two groups of port numbers used are identical as far as possible.

Under configuration mode in table above, the most it is not optimized during for all re-transmissions, but when considering solid size Word stream user and double streams of code words user carry out the situation of multiplexing, can be only the most excellent to the situation that single codeword stream is double-deck Changing, the parameter after optimization is that signaling structure is as shown in table 6, uses layer consistent with the above to the mapping mode of port simultaneously.

Table 6

It should be noted that the various corresponding relations in examples detailed above (index after combined coding with concrete in such as form Attribute corresponding relation, antenna port and the corresponding relation of the number of plies, the corresponding relation of the index of layer and pilot frequency design) it is not limited to This unique corresponding relation, i.e. their order can arbitrarily exchange combination, if one_to_one corresponding.Specifically, one The corresponding unique specific object of index after combined coding, the index after a corresponding unique combined coding of specific object.On State example and simply enumerate the one possibility of its correspondence.

Fig. 4 is the structured flowchart of transmission parameter instruction device according to embodiments of the present invention.As shown in Figure 4, according to this The transmission parameter instruction device of bright embodiment includes:

Combined coding module 42, generates parameter indication signaling, wherein, transmission ginseng for transmission parameter carries out combined coding Number includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense；

Signaling sending module 44, is connected to combined coding module 42, is used for above-mentioned parameter indication signaling by descending control Information processed is sent to subscriber equipment.

In said apparatus, combined coding module 42, when indicating user device transmissions parameter, is understood the number of plies transmission, is disturbed The parameters such as code Sequence identity, antenna port, pilot-frequency expense carry out combined coding and generate parameter indication signaling, then by descending control Information processed is sent to subscriber equipment.Owing to pilot-frequency expense has been participated in combine volume as transmission parameter by combined coding module 42 In Ma, therefore can select pilot-frequency expense more flexibly, thus between multi-user, support the demodulation pilot orthogonal of more layers Transmission.

Preferably, as it is shown in figure 5, combined coding module 42 can further include:

Signalling Designing unit 422, for passing based on subscriber equipment specific reference signals according to above-mentioned transmission parameter determination Layer time defeated is to the mapping mode of antenna port, and generates parameter indication signaling according to this mapping mode.

The transmission parameters such as the number of plies transmitted, scrambler sequence identity, antenna port, pilot-frequency expense are being carried out combined coding After, i.e. can determine that the mapping mode to antenna port of the layer when transmitting based on subscriber equipment specific reference signals, such as, when When number of layers is v, if the port of its correspondence is { p₀,p₁,...p_v-1, then layer i (o≤i≤v-1) corresponds to port p_i.Then Just according to this corresponded manner, parameter indication signaling can be designed, and ultimately generate parameter indication signaling.

Preferably, Signalling Designing unit 422 determines that the layer when transmitting based on subscriber equipment specific reference signals is to antenna The mapping mode of port may include that

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)(i) be The data of port p corresponding after respective layer precoding, p ∈ 0,4,5,7,8,9,10}, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},$ For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j Number,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, and o≤j≤ V-1, v are number of layers, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ For modulation symbol number waiting for transmission on current layer Mesh.

By above-mentioned formula, i.e. can determine that the layer when transmitting based on subscriber equipment specific reference signals is to antenna port Mapping mode, for constructing variable indication signaling provide foundation.

Preferably, as it is shown in figure 5, transmit parameter instruction device according to the preferred embodiment of the invention and can also wrap further Include:

Mask indicating module 46, is connected to combined coding module 42, for the big little finger of toe of the maximum port numbers according to distribution Showing that orthogonal mask de-spreads length, when the maximum port numbers of distribution is more than first threshold, subscriber equipment is just using the first length Handing over mask, when the maximum port numbers of distribution is less than or equal to first threshold, subscriber equipment uses the first length or the second length Orthogonal mask, wherein, the first length is more than the second length.

Orthogonal mask despreading length implicitly can be indicated by the maximum port numbers of distribution.Maximum port due to distribution Number the biggest required OCC length is the longest, therefore can set a threshold value (first threshold), when the maximum port numbers of distribution is big When this threshold value, just use the orthogonal mask of longer OCC(the first length), when the maximum port numbers of distribution is less than or equal to this threshold During value, just use the orthogonal mask of shorter OCC(the second length), owing to OCC has backward compatible characteristic, therefore, dividing When the maximum port numbers joined is less than or equal to this threshold value, use longer OCC also possible.

Preferably, as it is shown in figure 5, combined coding module 42 may further include:

Bit reuses unit 424, is connected to parameter list unit 422, is used for only one of which transmission block enables when, It is used for carrying out combined coding by new data indication bit corresponding for the transmission block of non-enable.

Owing to combined coding module 42 adds this parameter of pilot-frequency expense when carrying out combined coding, it is therefore desirable to increase New bit is used as carrier.When only one of which transmission block enables when, the new data that the transmission block of non-enable is corresponding indicates Bit is idle, therefore can be reused in by this bit and carry out combined coding, thus improve the utilization rate of bit, the most just In realization.

Fig. 6 is the flow chart of transmission parameter determination method according to embodiments of the present invention.As shown in Figure 6, according to the present invention The transmission parameter determination method of embodiment includes:

Step S602, subscriber equipment receives the parameter instruction letter that transmission parameter instruction device is sent by Downlink Control Information Order；

Step S604, subscriber equipment, according to above-mentioned parameter indication signaling, determines transmission parameter configuration, wherein, above-mentioned parameter Indication signaling is indicated device by transmission parameter carries out combined coding generation by transmitting parameter, and wherein, transmission parameter includes: pass The defeated number of plies, scrambler sequence identity, antenna port, pilot-frequency expense.

Preferably, in step S604, transmission parameter is carried out the combined coding described parameter indication signaling of generation and can enter one Step includes following process: according to the above-mentioned transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals to antenna The mapping mode of port, and generate parameter indication signaling according to this mapping mode.

Preferably, according to the transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals to antenna port Mapping mode may include that

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)(i) be The data of port p corresponding after respective layer precoding, p ∈ 0,4,5,7,8,9,10}, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},$ For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j Number,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, and o≤j≤ V-1, v are number of layers, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ For modulation symbol number waiting for transmission on current layer Mesh.

Preferably, can further include following process after step S604: the size according to the port numbers of distribution is true Fixed orthogonal mask despreading length, when the maximum port numbers of distribution is more than first threshold, uses the orthogonal mask of the first length, when When the maximum port numbers of distribution is less than or equal to first threshold, use the orthogonal mask of the first length or the second length, wherein, first Length is more than the second length.

Preferably, in step S604, transmission parameter carries out the combined coding described parameter indication signaling of generation can also be entered One step includes following process: when only one of which transmission block enables when, by new data instruction corresponding for the transmission block of non-enable Bit is used for carrying out combined coding.

Fig. 7 is the structured flowchart of transmission parameter determination device according to embodiments of the present invention.As it is shown in fig. 7, according to this The transmission parameter determination device of bright embodiment includes:

Signaling receiver module 72, the parameter sent by Downlink Control Information for receiving transmission parameter instruction device is indicated Signaling；

Parameter determination module 74, is connected to signaling receiver module 72, for according to above-mentioned parameter indication signaling, determines transmission Parameter configuration, wherein, above-mentioned parameter indication signaling is raw by transmission parameter is carried out combined coding by transmitting parameter instruction device Becoming, wherein, transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense.

Indicate device corresponding to above-mentioned parameter, be also required on a user device arrange corresponding parameter determination module to receive The parameter indication signaling that above-mentioned parameter instruction device sends, and finally determine transmission parameter configuration according to instruction therein.

Preferably, above-mentioned transmission parameter instruction device can be according to above-mentioned transmission parameter determination specific based on subscriber equipment Layer during reference signal transmission is to the mapping mode of antenna port, and generates parameter indication signaling according to this mapping mode.

Preferably, above-mentioned transmission parameter instruction device determines that the layer when transmitting based on subscriber equipment specific reference signals arrives The mapping mode of antenna port may include that

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)(i) be The data of port p corresponding after respective layer precoding, p ∈ 0,4,5,7,8,9,10}, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},$ For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j Number,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, and o≤j≤ V-1, v are number of layers, $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}},M_{\mathrm{symb}}^{\mathrm{layer}}$ For modulation symbol number waiting for transmission on current layer Mesh.

Preferably, as shown in Figure 8, transmission parameter determination device can also wrap further according to the preferred embodiment of the invention Including: mask determines module 76, be connected to parameter determination module 74, the size for the maximum port numbers according to distribution determines orthogonal Mask despreading length, when the maximum port numbers of distribution is more than first threshold, uses the orthogonal mask of the first length, when distribution When maximum port numbers is less than or equal to first threshold, using the orthogonal mask of the first length or the second length, wherein, the first length is big In the second length.

Preferably, when only one of which transmission block enables when, above-mentioned transmission parameter instruction device can be by non-enable The new data indication bit that transmission block is corresponding is used for carrying out combined coding.

As can be seen from the above description, the technical scheme that the present invention provides can be further to MU-MIMO transmission mould Formula strengthens, when multi-user transmission, and the more flexible distribution carrying out layer, support between different node, especially at isomery simultaneously The orthogonal transmission of DMRS between different nodes in net, and it is also beneficial to the AF panel between different node.Whole scheme is permissible Realize techniques below effect: existing MU-MIMO technology is strengthened, support to realize more between multiple users under same community Many demodulation pilot orthogonal transmission；Support to demodulate between different node the orthogonal transmission of pilot tone, it is possible to achieve disturb more accurately Estimate；Support under heterogeneous network, pilot orthogonal transmission more flexible between different nodes, it is thus achieved that bigger cell splitting gain.

Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general Calculating device realize, they can concentrate on single calculating device, or be distributed in multiple calculating device and formed Network on, alternatively, they can with calculate the executable program code of device realize, it is thus possible to by they store Performed by calculating device in the storage device, and in some cases, can perform with the order being different from herein shown The step gone out or describe, or they are fabricated to respectively each integrated circuit modules, or by the multiple modules in them or Step is fabricated to single integrated circuit module and realizes.So, the present invention is not restricted to the combination of any specific hardware and software.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (20)

1. a transmission parameter indicating means, it is characterised in that including:

Transmission parameter being carried out combined coding and generates parameter indication signaling, wherein, described transmission parameter includes: the number of plies of transmission, Scrambler sequence identity, antenna port, pilot-frequency expense；

Described parameter indication signaling is sent to subscriber equipment by Downlink Control Information.

Method the most according to claim 1, it is characterised in that transmission parameter is carried out combined coding and generates parameter instruction letter Order includes:

Mapping according to the described transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals to antenna port Mode, and generate described parameter indication signaling according to described mapping mode.

Method the most according to claim 2, it is characterised in that according to described transmission parameter determination special based on subscriber equipment Layer when determining reference signal transmission includes to the mapping mode of antenna port:

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)I () is corresponding The data of port p corresponding after layer precoding, p ∈ 0,4,5,7,8,9,10}, For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, 0≤j≤v-1, V is number of layers, For number of modulation symbols waiting for transmission on current layer.

Method the most according to claim 3, it is characterised in that generate parameter instruction transmission parameter is carried out combined coding After signaling, also include:

The size of the port numbers according to distribution indicates orthogonal mask despreading length, when the maximum port numbers of distribution is more than first threshold Time, subscriber equipment uses the orthogonal mask of the first length, when the maximum port numbers of distribution is less than or equal to first threshold, and Yong Hushe Standby the first length or the orthogonal mask of the second length of using, wherein, described first length is more than described second length.

5. according to the method described in any one of Claims 1-4, it is characterised in that transmission parameter is carried out combined coding generation Parameter indication signaling includes:

When only one of which transmission block enables when, it is used for joining by new data indication bit corresponding for the transmission block of non-enable Compile in collaboration with code.

6. a transmission parameter instruction device, it is characterised in that including:

Combined coding module, generates parameter indication signaling, wherein, described transmission parameter for transmission parameter is carried out combined coding Including: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense；

Signaling sending module, for being sent to subscriber equipment by described parameter indication signaling by Downlink Control Information.

Device the most according to claim 6, it is characterised in that described combined coding module includes:

Signalling Designing unit, for according to the described transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals To the mapping mode of antenna port, and generate described parameter indication signaling according to described mapping mode.

Device the most according to claim 7, it is characterised in that described Signalling Designing unit determines special based on subscriber equipment Layer when determining reference signal transmission includes to the method for the mapping mode of antenna port:

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)I () is corresponding The data of port p corresponding after layer precoding, p ∈ 0,4,5,7,8,9,10}, For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, 0≤j≤v-1, V is number of layers, For number of modulation symbols waiting for transmission on current layer.

Device the most according to claim 8, it is characterised in that also include:

Mask indicating module, the size for the port numbers according to distribution indicates orthogonal mask despreading length, when the maximum of distribution When port numbers is more than first threshold, subscriber equipment uses the orthogonal mask of the first length, when the maximum port numbers of distribution is less than When first threshold, subscriber equipment uses the orthogonal mask of the first length or the second length, and wherein, described first length is more than institute State the second length.

10., according to the device described in any one of claim 6 to 9, it is characterised in that described combined coding module, also include:

Bit reuses unit, for only one of which transmission block enables when, by new data corresponding for the transmission block of non-enable Indication bit is used for carrying out combined coding.

11. 1 kinds of transmission parameter determination method, it is characterised in that including:

Subscriber equipment receives the parameter indication signaling that transmission parameter instruction device is sent by Downlink Control Information；

Described subscriber equipment, according to described parameter indication signaling, determines transmission parameter configuration, wherein,

Described parameter indication signaling by described transmission parameter instruction device by transmit parameter carry out combined coding generation, its In, described transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense.

12. methods according to claim 11, it is characterised in that transmission parameter is carried out combined coding and generates described parameter Indication signaling includes:

Mapping according to the described transmission parameter determination layer when transmitting based on subscriber equipment specific reference signals to antenna port Mode, and generate described parameter indication signaling according to described mapping mode.

13. methods according to claim 12, it is characterised in that according to described transmission parameter determination based on subscriber equipment Layer during specific reference signals transmission includes to the method for the mapping mode of antenna port:

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)I () is corresponding The data of port p corresponding after layer precoding, p ∈ 0,4,5,7,8,9,10}, For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, 0≤j≤v-1, V is number of layers, For number of modulation symbols waiting for transmission on current layer.

14. methods according to claim 13, it is characterised in that described subscriber equipment according to described parameter indication signaling, After determining transmission parameter configuration, also include:

The size of the port numbers according to distribution determines that orthogonal mask de-spreads length, when the maximum port numbers of distribution is more than first threshold Time, use the orthogonal mask of the first length, when distribution maximum port numbers less than or equal to first threshold time, use the first length or The orthogonal mask of the second length, wherein, described first length is more than described second length.

15. according to the method described in any one of claim 11 to 14, it is characterised in that transmission parameter is carried out combined coding raw Described parameter indication signaling is become to include:

When only one of which transmission block enables when, it is used for joining by new data indication bit corresponding for the transmission block of non-enable Compile in collaboration with code.

16. 1 kinds of transmission parameter determination devices, are positioned on subscriber equipment, it is characterised in that including:

Signaling receiver module, for receiving the parameter indication signaling that transmission parameter instruction device is sent by Downlink Control Information；

Parameter determination module, for according to described parameter indication signaling, determines transmission parameter configuration, wherein,

Described parameter indication signaling by described transmission parameter instruction device by transmit parameter carry out combined coding generation, its In, described transmission parameter includes: the number of plies of transmission, scrambler sequence identity, antenna port, pilot-frequency expense.

17. devices according to claim 16, it is characterised in that described transmission parameter instruction device is according to described transmission ginseng Number determines the mapping mode to antenna port of the layer when transmitting based on subscriber equipment specific reference signals, and according to described mapping Mode generates described parameter indication signaling.

18. devices according to claim 17, it is characterised in that described transmission parameter instruction device determines based on user The layer during transmission of equipment specific reference signals includes to the method for the mapping mode of antenna port:

The layer mapping mode to antenna port is determined according to formula below:

When only one of which layer transmits, y^(p)(i)=x⁽⁰⁾(i), wherein, x⁽⁰⁾I () is the modulation symbol of layer 0, y^(p)I () is corresponding The data of port p corresponding after layer precoding, p ∈ 0,4,5,7,8,9,10}, For number of modulation symbols waiting for transmission on current layer；

When number of layers is more than 1, layer being mapped as to portWherein, x^(j)I () is the modulation symbol of layer j,For port p corresponding after respective layer precoding_jData, p_jCorresponding port is indicated by indication signaling, 0≤j≤v-1, V is number of layers, For number of modulation symbols waiting for transmission on current layer.

19. devices according to claim 18, it is characterised in that described transmission parameter determination device also includes:

Mask determines module, and the size for the port numbers according to distribution determines that orthogonal mask de-spreads length, when the maximum of distribution When port numbers is more than first threshold, use the orthogonal mask of the first length, when the maximum port numbers of distribution is less than or equal to the first threshold During value, using the orthogonal mask of the first length or the second length, wherein, described first length is more than described second length.

20. according to the device described in any one of claim 16 to 18, it is characterised in that when only one of which transmission block enables Waiting, new data indication bit corresponding for the transmission block of non-enable is used for carrying out combined coding by described transmission parameter instruction device.