CN101702638A - Indication method and device of transmission mode - Google Patents
Indication method and device of transmission mode Download PDFInfo
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- CN101702638A CN101702638A CN200910221162A CN200910221162A CN101702638A CN 101702638 A CN101702638 A CN 101702638A CN 200910221162 A CN200910221162 A CN 200910221162A CN 200910221162 A CN200910221162 A CN 200910221162A CN 101702638 A CN101702638 A CN 101702638A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
Abstract
The invention discloses indication method and device of a transmission mode. The method comprises the following step of adding indication information in a downlink control information format, wherein the indication information is used for indicating the transmission mode of user equipment and information corresponding to the transmission mode. The invention solves the problem of nonsupport of MIMO multi-user transmission based on demodulation pilot frequency in LTE of version 10 and realizes support of MIMO multi-user transmission based on the demodulation pilot frequency.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of indicating means and device of transmission means.
Background technology
In radio communication, if use many antennas at transmitting terminal (eNB), we can take the mode of spatial reuse to improve transmission rate, the different data of the i.e. emission of different antennae position on the identical running time-frequency resource of transmitting terminal, (UE) also uses many antennas at receiving terminal, we can distribute to same user with the resource of all antennas under single user's situation, this transmission form is called SU-MIMO (Single User MIMO), we also can give different user with the resource allocation in different antennae space under multi-user's situation in addition, and this transmission form is called MU-MIMO (multiuser MIMO).Transmission system is if support Single User MIMO and multiuser MIMO at the same time, eNB is necessary to be provided at data under these two kinds of transmission modes with controlling signaling to UE.UE needs to know that in these two kinds of transmission modes eNB is for the used order (Rank) of this UE transmission, under single user mode, because the resource of all antennas is all distributed to same user, transmit the used number of plies and just equal eNB in the used order of this transmission, and in multi-user's transmission, it is the total number of plies that is less than this transmission that corresponding user is transmitted the used number of plies.Accomplish the dynamic switching of single user and multi-user transmission, eNB need be in the different transmission mode different data of UE that sends a notice.
Long Term Evolution (Long-Term Evolution, abbreviate LTE as) version number 8 (Release 8) in defined following three kinds of downlink physical control channels: physical down control format indicating channel (Physical Control Format Indicator Channel, abbreviate PCFICH as), the automatic repeat requests indicating channel of physical mixed (Physical HybridAutomatic Retransmission Request Indicator Channel, abbreviate PHICH as) and Physical Downlink Control Channel (Physical Downlink Control Channel abbreviates PDCCH as).PDCCH wherein is used for bearing downlink control information (Downlink ControlInformation abbreviates DCI as), comprising: uplink and downlink schedule information, and uplink power control information.The form of DCI (DCI format) is divided into following several: DCI format0, DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format 1D, DCI format 2, DCI format 2A, DCI format 3 and DCIformat 3A etc.; Wherein support the transmission mode 5 of multiuser MIMO to utilize the Downlink Control Information of DCIformat 1D, and the Downlink poweroffset field δ among the DCI format 1D
Power-offsetBe to be used for being presented at multiuser MIMO for will the reduce by half information of (promptly-10log10 (2)) of a user's power, this is because this pattern is only supported two users' user MIMO transmission, because this bit is arranged, transmission mode 5 can be supported the dynamic switching of single user and multi-user's transmission, but transmit this DCI format all only each UE is supported the transmission of a stream single user or multi-user, though LTERelease 8 supports single user's transmission of maximum two streams in transmission mode 4, but because the switching between the transmission mode can only be semi-static, so to accomplish that the dynamic switching of single user's multithread transmission and multi-user's transmission is impossible in version number 8.
In addition, in the version number 10 of LTE, the transmission mode of MIMO has been determined to separate the pilot tone of calling with demodulation pilot frequency (Demodulation Reference Signal abbreviates DMRS as), UE will obtain the position of pilot tone, just can do the estimation of channel and interference on pilot tone.Total number of plies of different transmission has different pilot frequency designs, for example in the version number 10 of LTE, three kinds of different patterns (DMRS Pattern) have tentatively been decided to have, total number of plies of transmission or order are time 1 to 2, with first pattern (DMRS pattern 1), total number of plies of transmission or order are time second pattern of standby (DMRS pattern 2) of 3 to 4, and total number of plies of transmission or order are 5 to 8 time the 3rd pattern of standby (DMRS pattern 3).In single user's transmission, the data of all transport layers all are to same UE, so just can know pilot frequency design as long as UE obtains order, also can know the position of pilot tone.In multi-user's transmission, UE will know that one deck of sum of ranks begins this UE is transmitted, and UE will know that also the pilot frequency design of transmission usefulness just can obtain the pilot frequency locations of interference.In the technology of existing version number 8, do not have same requirement, so the version number 10 of LTE wants a new signaling to go to support the MIMO multi-user based on DMRS to transmit.
Summary of the invention
Do not propose the present invention at do not support the problem of transmitting based on the MIMO multi-user of demodulation pilot frequency in the version number 10 of LTE, for this reason, main purpose of the present invention is to provide a kind of indicating means and device of transmission means, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of indicating means of transmission means, having comprised: in descending control information format, increased indication information, wherein, indication information is used to indicate the transmission means of subscriber equipment and the information of transmission means correspondence.
Preferably, above-mentioned indication information is a plurality of bits.
Preferably, the transmission means of subscriber equipment comprise following one of at least: single user's transmission means, multi-user's transmission means.
Preferably, when indication information was used to indicate multi-user's transmission means of subscriber equipment, information comprised: the layer index that subscriber equipment transmits.
Preferably, when indication information is used to indicate multi-user's transmission means of subscriber equipment, information also comprise following one of at least: the pilot frequency design corresponding, total number of plies of multi-user's transmission means with multi-user's transmission means.
Preferably, when indication information was used to indicate single user's transmission means, information was the order of single user's transmission means correspondence.
To achieve these goals, according to another aspect of the present invention, a kind of indicating device of transmission means is provided, comprise: increase module, be used for increasing indication information at descending control information format, wherein, indication information is used to indicate the transmission means of subscriber equipment and the information of transmission means correspondence.
Preferably, indication information is a plurality of bits.
Preferably, when indication information was used to indicate multi-user's transmission means of subscriber equipment, information comprised: the layer index that subscriber equipment transmits.
Preferably, when indication information is used to indicate multi-user's transmission means of subscriber equipment, information also comprise following one of at least: the pilot frequency design corresponding, total number of plies of multi-user's transmission means with multi-user's transmission means.
Preferably, when indication information was used to indicate single user's transmission means, information was the order of single user's transmission means correspondence.
By the present invention, employing increases indication information in descending control information format, wherein, this indication information is used to indicate the transmission means of subscriber equipment and the information of this transmission means correspondence, solved the problem of in the version number 10 of LTE, not supporting based on MIMO multi-user's transmission of demodulation pilot frequency, realized supporting MIMO multi-user to transmit based on demodulation pilot frequency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to correlation technique;
Fig. 2 is the schematic diagram according to the embodiment of the invention 1.1.
Embodiment
Functional overview
Consider the problem of in the version number 10 of LTE, not supporting in the correlation technique based on MIMO multi-user's transmission of demodulation pilot frequency, the embodiment of the invention provides a kind of indicating means and device of transmission means, employing increases indication information in descending control information format, wherein, this indication information is used to indicate the transmission means of subscriber equipment and the information of this transmission means correspondence, has realized supporting the MIMO multi-user based on demodulation pilot frequency to transmit.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, a kind of indicating means of transmission means is provided, be applied in the dynamic switching of the single user's multithread transmission of multi-aerial transmission system support and multi-user's transmission.This method is included in increases indication information in the descending control information format, wherein, this indication information is used to indicate the transmission means (that is single user or multi-user's transmission means) of subscriber equipment and the information of transmission means correspondence (that is needed information under the different transmission meanss).
Wherein, descending control information format is a kind of new descending control information format (DCIFormat X).
Wherein, indication information is a plurality of bits (specifically being defined as K bit).
Particularly, when indication information is used to indicate multi-user's transmission means of subscriber equipment, above-mentioned information comprises: the number of plies that the sum of ranks subscriber equipment of multi-user's transmission means correspondence begins to transmit (that is, and the used order of eNB notice UE transmission, and be which layer begins this UE is transmitted).
Particularly, when indication information is used to indicate multi-user's transmission means of subscriber equipment, it is one of following that above-mentioned information also comprises: the pilot frequency design corresponding with multi-user's transmission means, total number of plies of multi-user's transmission means (that is total number of plies of the pilot frequency design (DMRS Pattern) of this transmission usefulness of eNB notice UE or multi-user's transmission).
Particularly, when indication information was used to indicate single user's transmission means, above-mentioned information was the order (that is, eNB notice UE this be the used order of UE transmission) of single user's transmission means correspondence.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
As embodiments of the invention, under the scene of many antennas input and output (MIMO), the DCI Format X of redetermination can be used for representing single user or multi-user's transmission means, and this K bit signalling can comprise following information:
SU/MU-MIMO-S represents single user's transmission, and M represents multi-user's transmission;
The representative of rank value was transmitted this UE when order (rank value)-multi-user and single user were transmitted, and this also equals total number of plies of this transmission when single user is transmitted;
The index of used layer when the index-multi-user of layer and single user are transmitted, the index of layer is exactly by layer one to rank value when single user is transmitted;
Used DMRS pattern during DMRS pattern-transmission; Or
Used total number of plies during total number of plies-transmission
DCI Format X can be corresponding to a transmission (TB) piece, DCI Format X can represent the individual layer transmission, DCI Format X can also be corresponding to two transmission (TB) piece, when if two transmission blocks all enable, DCI Format X will represent two-layer to eight layers of transmission, and when having only a transmission block to enable, according to the mapping ruler of transmission block to layer, DCI Format X can represent individual layer to four layer transmission.DCI Format X can also go to support simultaneously the transmission of and two transmission (TB) piece with same set of signaling.In addition, in different hypothesis, signaling is had different influences, the expense (K bit) that needs is also different, all is presented at following embodiment.
Hypothesis among the embodiment 1:
In the time of a.MU-MIMO (multiuser MIMO), maximum 4 layers of the multiplexing number of plies, the multiplexing number of plies of each UE are at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. only notify UE DMRS Pattern, different DMRS Pattern have different signalings
Embodiment 1.1
DCI Format can represent the signaling (unified signaling) of one or two transmission block (TB)
The DCI Format X of embodiment 1.1 goes to support simultaneously the transmission of and two transmission (TB) piece with same set of signaling:
SU-MIMO has 8 kinds of states
State: 1 layer to 8 layers; (number of plies)
MU-MIMO has 6 kinds of states
Rank1：
DMRS pattern 1: layer 1, layer 2 (index of layer)
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
Rank2:(2 kind state)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number=8+6+2=16 altogether, signaling consumption is the K=4 bit
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | The DMRS pattern |
| ??0 | ??S | ??1 | ??1 | ??1 |
| ??1 | ??S | ??2 | ??1，2 | ??1 |
| ??2 | ??S | ??3 | ??1，2，3 | ??2 |
| ??3 | ??S | ??4 | 1 to 4 | ??2 |
| ??4 | ??S | ??5 | 1 to 5 | ??3 |
| ??5 | ??S | ??6 | 1 to 6 | ??3 |
| ??6 | ??S | ??7 | 1 to 7 | ??3 |
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | The DMRS pattern |
| ??7 | ??S | ??8 | 1 to 8 | ??3 |
| ??8 | ??M | ??1 | ??1 | ??1 |
| ??9 | ??M | ??1 | ??2 | ??1 |
| ??10 | ??M | ??1 | ??1 | ??2 |
| ??11 | ??M | ??1 | ??2 | ??2 |
| ??12 | ??M | ??1 | ??3 | ??2 |
| ??13 | ??M | ??1 | ??4 | ??2 |
| ??14 | ??M | ??2 | ??1，2 | ??2 |
| ??15 | ??M | ??2 | ??3，4 | ??2 |
Fig. 2 is the schematic diagram according to the embodiment of the invention 1.1, as shown in Figure 2, comprises that following step S202 is to step S220:
Step S202, eNB sends descending control signaling to UE.
Step S204, does UE judge whether MU?
Step S206, UE know that this is that the multi-user is transmitted, and know the order that transmission is used from the rank value.
Step S208, UE knows the pilot patterns of transmitting usefulness from the DMRS pattern, and UE knows that from the index of layer transmission is that one deck simultaneously, and UE just can know the position of pilot tone.
Step S210, UE just can do the measurement of channel and interference after knowing position to the layer of oneself transmission, continue to do demodulation then.
Step S212 finishes the processing to multi-user's transmission.
Step S214, UE know that this is single user's transmission, and know the order that transmission is used from the rank value.
Step S216, the used whats such as order of UE transmission are known the pilot patterns of transmission usefulness, know the position of pilot tone.
Step S218, UE just can do the measurement of channel and interference after knowing position to the layer of oneself transmission, continue to do demodulation then.
Step S220 finishes the processing to single user's transmission.
Embodiment 1.2
The signaling of having only an expression transmission (TB) piece among the DCI Format
The DCI Format X of embodiment 1.2 is corresponding to a transmission (TB) piece, and DCIFormat X represents the individual layer transmission, or the corresponding two-layer transmission of a transmission (TB) piece
SU-MIMO has 8 kinds of states
State: 1 layer to 8 layers; (number of plies)
MU-MIMO has 6 kinds of states
Rank1：
DMRS pattern 1: layer 1, layer 2 (index of layer)
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
Rank2:(2 kind state)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number=2+6+2=10 altogether, signaling consumption is the K=4 bit
Embodiment 1.3
The signaling of having only a TB of expression among the DCI Format
The signaling of having only an expression transmission (TB) piece among the DCI Format
The DCI Format X of embodiment 1.3 is corresponding to a transmission (TB) piece, and DCIFormat X represents the individual layer transmission
SU-MIMO has a kind of state
State: 1 layer; (number of plies)
MU-MIMO has 6 kinds of states
Rank1：
DMRS pattern 1: layer 1, layer 2 (index of layer)
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
Status number=1+6=7 altogether, signaling consumption is the K=3 bit
Embodiment 1.4
The signaling of two TB of expression among the DCI Format
DCI Format X is corresponding to two transmission (TB) piece, if when two transmission blocks all enable, DCI Format X will represent two-layer to eight layers of transmission
Two TB enable
SU-MIMO has 7 kinds of states
State: 2 layers to 8 layers; (number of plies)
MU-MIMO has 2 kinds of states
Rank2:(2 kind state)
DMRS pattern 1: layer 1 and layer 2 (index of layer)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number=7+2=9 altogether, signaling consumption is the K=4 bit
Embodiment 1.5
A TB enables
DCI Format X can also be corresponding to two transmission (TB) piece, if when having only a transmission block to enable, according to the mapping ruler of transmission block to layer, DCI Format X can represent individual layer to four layer transmission.
SU-MIMO has 4 kinds of states
State: 1 layer to 4 layers; (number of plies)
MU-MIMO has 2 kinds of states
Rank1:(6 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
Rank2:(2 kind state)
DMRS pattern 1: layer 1 and layer 2 (index of layer)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number=4+6+2=12 altogether, signaling consumption is the K=4 bit
Hypothesis among the embodiment 2:
In the time of a.MU-MIMO, maximum 8 layers of the multiplexing number of plies, the multiplexing number of plies of each UE are at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. only notify UE DMRS Pattern, different DMRS Pattern have different signalings
Embodiment 2.1
DCI Format can represent the signaling (unified signaling) of one or two TB
The DCI Format X of embodiment 2.1 goes to support simultaneously the transmission of and two transmission (TB) piece with same set of signaling:
SU-MIMO has 8 kinds of states
State: 1 layer to 8 layers; (number of plies)
MU-MIMO has 20 kinds of states
Rank1:(14 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(6 kind state)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
DMRS mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=8+14+6=28 altogether, signaling consumption is the K=5 bit
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | The DMRS pattern |
| ??0 | ??S | ??1 | ??1 | ??1 |
| ??1 | ??S | ??2 | ??1，2 | ??1 |
| ??2 | ??S | ??3 | ??1，2，3 | ??2 |
| ??3 | ??S | ??4 | 1 to 4 | ??2 |
| ??4 | ??S | ??5 | 1 to 5 | ??3 |
| ??5 | ??S | ??6 | 1 to 6 | ??3 |
| ??6 | ??S | ??7 | 1 to 7 | ??3 |
| ??7 | ??S | ??8 | 1 to 8 | ??3 |
| ??8 | ??M | ??1 | ??1 | ??1 |
| ??9 | ??M | ??1 | ??2 | ??1 |
| ??10 | ??M | ??1 | ??1 | ??2 |
| ??11 | ??M | ??1 | ??2 | ??2 |
| ??12 | ??M | ??1 | ??3 | ??2 |
| ??13 | ??M | ??1 | ??4 | ??2 |
| ??14 | ??M | ??2 | ??1，2 | ??2 |
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | The DMRS pattern |
| ??15 | ??M | ??2 | ??3，4 | ??2 |
| ??16 | ??M | ??1 | ??1 | ??3 |
| ??17 | ??M | ??1 | ??2 | ??3 |
| ??18 | ??M | ??1 | ??3 | ??3 |
| ??19 | ??M | ??1 | ??4 | ??3 |
| ??20 | ??M | ??1 | ??5 | ??3 |
| ??21 | ??M | ??1 | ??6 | ??3 |
| ??22 | ??M | ??1 | ??7 | ??3 |
| ??23 | ??M | ??1 | ??8 | ??3 |
| ??24 | ??M | ??2 | ??1，2 | ??3 |
| ??25 | ??M | ??2 | ??3，4 | ??3 |
| ??26 | ??M | ??2 | ??5，6 | ??3 |
| ??27 | ??M | ??2 | ??7，8 | ??3 |
Embodiment 2.2
The signaling of having only an expression transmission (TB) piece among the DCI Format
The DCI Format X of embodiment 2.2 is corresponding to a transmission (TB) piece, and DCIFormat X represents the individual layer transmission
SU-MIMO has 2 kinds of states
State: 2 layers; (number of plies)
MU-MIMO has 21 kinds of states
Rank1:(14 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(6 kind state)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
DMRS mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=2+14+6=22 altogether, signaling consumption is the K=5 bit
Embodiment 2.3
The signaling of having only an expression transmission (TB) piece among the DCI Format
The DCI Format X of embodiment 2.3 is corresponding to a transmission (TB) piece, and DCIFormat X represents the individual layer transmission
SU-MIMO has a kind of state
State: 1 layer; (number of plies)
MU-MIMO has 21 kinds of states
Rank1:(14 kind state)
DMRS pattern 1: layer 1, layer 2 (index of layer)
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(7 kind state)
Status number=1+14=15 altogether, signaling consumption is the K=4 bit
Embodiment 2.4
The signaling of two TB of expression among the DCI Format
DCI Format X is corresponding to two transmission (TB) piece, if when two transmission blocks all enable, DCI Format X will represent two-layer to eight layers of transmission
Two TB enable
SU-MIMO has 7 kinds of states
State: 2 layers to 8 layers; (number of plies)
MU-MIMO has 6 kinds of states
Rank2:(6 kind state)
DMRS pattern 1: layer 1 and layer 2 (index of layer)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
DMRS mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=7+6=13 altogether, signaling consumption is the K=4 bit
Embodiment 2.5
A TB enables
DCI Format X can also be corresponding to two transmission (TB) piece, if when having only a transmission block to enable, according to the mapping ruler of transmission block to layer, DCI Format X can represent individual layer to four layer transmission.
SU-MIMO has 4 kinds of states
State: 1 layer to 4 layers; (number of plies)
MU-MIMO has 20 kinds of states
Rank1:(14 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(6 kind state)
DMRS pattern 1: layer 1 and layer 2
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
Mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=4+14+6=24 altogether, signaling consumption is the K=5 bit
Hypothesis among the embodiment 3:
In the time of a.MU-MIMO, maximum 4 of multiplexing UE, the multiplexing number of plies of each UE is at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. only notify UE DMRS Pattern, different DMRS Pattern have different signalings
Embodiment 3.1
DCI Format can represent the signaling (unified signaling) of one or two TB
The DCI Format X of embodiment 3.1 goes to support simultaneously the transmission of and two transmission (TB) piece with same set of signaling:
SU-MIMO has 8 kinds of states
State: 1 layer to 8 layers; (number of plies)
MU-MIMO has 15 kinds of states
Rank1:(9 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(6 kind state)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
DMRS mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=8+9+6=23 altogether, signaling consumption is the K=5 bit
Embodiment 3.2
The signaling of having only an expression transmission (TB) piece among the DCI Format
The DCI Format X of embodiment 3.2 is corresponding to a transmission (TB) piece, and DCIFormat X represents the individual layer transmission
SU-MIMO has a kind of state
State: 1 layer; (number of plies)
MU-MIMO has 9 kinds of states
Rank1:(9 kind state)
DMRS pattern 1: layer 1, layer 2
DMRS pattern 2: layer 1, layer 2, layer 3, layer 4
DMRS mode 3: layer 1, layer 2, layer 3
Status number=1+9=10 altogether, signaling consumption is the K=4 bit
Embodiment 3.3
The signaling of two TB of expression among the DCI Format
DCI Format X is corresponding to two transmission (TB) piece, if when two transmission blocks all enable, DCI Format X will represent two-layer to eight layers of transmission
Two TB enable
SU-MIMO has 7 kinds of states
State: 2 layers to 8 layers; (number of plies)
MU-MIMO has 6 kinds of states
Rank2:(6 kind state)
DMRS pattern 1: layer 1 and layer 2 (index of layer)
DMRS pattern 2: layer 1 and layer 2, layer 3 and layer 4
DMRS mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number=7+6=13 altogether, signaling consumption is the K=4 bit
Embodiment 3.4
A TB enables
SU-MIMO (number of plies) (4 kinds of states)
Multiplexing 4 layers at most of UE, state: 1 layer, 2 layers, 3 layers, 4 layers;
MU-MIMO (index of layer)
Rank1:(9 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(6 kind state)
Pattern 1: layer 1 and layer 2
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number 4+9+6=19 altogether, signaling consumption is the K=5 bit
Embodiment 4.
Hypothesis among the embodiment 4:
In the time of a.MU-MIMO, maximum 4 layers of the multiplexing number of plies, the multiplexing number of plies of each UE are at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. notify UE total number of plies, different total numbers of plies have different signalings
Embodiment 4.1
DCI Format can represent the signaling (unified signaling) of one or two TB
SU-MIMO (number of plies) (8 kinds of states)
State: 1 layer to 8 layers;
MU-MIMO (index of layer)
Rank1:(9 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Rank2:(3 kind state)
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number 8+9+3=20 altogether, signaling consumption is the K=5 bit
Embodiment 4.2
The signaling of having only a TB of expression among the DCI Format
SU-MIMO (number of plies) (2 kinds of states)
MU-MIMO (index of layer)
Rank1:(9 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Embodiment 4.3
The signaling of two TB of expression among the DCI Format
Two TB enable
SU-MIMO (number of plies) (7 kinds of states)
State: 2 layers to 8 layers;
MU-MIMO (index of layer)
Rank2:(3 kind state)
Pattern 1: layer 1 and layer 2, layer 3 and layer 4
Status number 7+3=10 altogether, signaling consumption is the K=4 bit
Embodiment 4.4
A TB enables
SU-MIMO (number of plies) (4 kinds of states)
Multiplexing 4 layers at most of UE, state: 1 layer, 2 layers, 3 layers, 4 layers;
MU-MIMO (index of layer)
Rank1:(9 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Rank2:(3 kind state)
Pattern 1: layer 1 and layer 2
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Status number 4+9+3=16 altogether, signaling consumption is the K=4 bit
Embodiment 5.
Hypothesis among the embodiment 5:
In the time of a.MU-MIMO, maximum 8 layers of the multiplexing number of plies, the multiplexing number of plies of each UE are at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. at pattern 1-2, notify UE total number of plies, at mode 3, the total number of plies of notice UE is an odd or even number
Embodiment 5.1
DCI Format can represent the signaling (unified signaling) of one or two TB
SU-MIMO (number of plies) (8 kinds of states)
State: 1 layer to 8 layers;
MU-MIMO (index of layer)
Rank1:(24 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(10 kind state)
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number 8+24+10=42 altogether, signaling consumption is the K=6 bit
Embodiment 6.
In the time of a.MU-MIMO, maximum 5 of multiplexing UE, the multiplexing number of plies of each UE is at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. at pattern 1-2, notify UE total number of plies, at mode 3, the total number of plies of notice UE is an odd or even number
Embodiment 6.1
DCI Format can represent the signaling (unified signaling) of one or two TB
SU-MIMO (number of plies) (8 kinds of states)
State: 1 layer to 8 layers;
MU-MIMO (index of layer)
Rank1:(14 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Mode 3: layer 1, layer 2, layer 3
Rank2:(10 kind state)
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number 8+14+10=32 altogether, signaling consumption is the K=5 bit
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | Total number of plies |
| ??0 | ??S | ??1 | ??1 | ??1 |
| ??1 | ??S | ??2 | ??1，2 | ??2 |
| ??2 | ??S | ??3 | ??1，2，3 | ??3 |
| ??3 | ??S | ??4 | 1 to 4 | ??4 |
| ??4 | ??S | ??5 | 1 to 5 | ??5 |
| ??5 | ??S | ??6 | 1 to 6 | ??6 |
| ??6 | ??S | ??7 | 1 to 7 | ??7 |
| ??7 | ??S | ??8 | 1 to 8 | ??8 |
| ??8 | ??M | ??1 | ??1 | ??2 |
| ??9 | ??M | ??1 | ??2 | ??2 |
| ??10 | ??M | ??1 | ??1 | ??3 |
| ??11 | ??M | ??1 | ??2 | ??3 |
| ??12 | ??M | ??1 | ??3 | ??3 |
| ??13 | ??M | ??2 | ??1，2 | ??3 |
| ??14 | ??M | ??1 | ??1 | ??4 |
| Signaling | ??SU/MU-MIMO | The Rank value | The index of layer | Total number of plies |
| ??15 | ??M | ??1 | ??2 | ??4 |
| ??16 | ??M | ??1 | ??3 | ??4 |
| ??17 | ??M | ??1 | ??4 | ??4 |
| ??18 | ??M | ??2 | ??1，2 | ??4 |
| ??19 | ??M | ??2 | ??3，4 | ??4 |
| ??20 | ??M | ??1 | ??1 | ??5?or?7 |
| ??21 | ??M | ??1 | ??2 | ??5 |
| ??22 | ??M | ??1 | ??3 | ??5 |
| ??23 | ??M | ??2 | ??3，4 | ??5?or?7 |
| ??24 | ??M | ??2 | ??5，6 | ??5?or?7 |
| ??25 | ??M | ??2 | ??7，8 | ??7 |
| ??26 | ??M | ??1 | ??1 | ??6?or?8 |
| ??27 | ??M | ??1 | ??2 | ??6?or?8 |
| ??28 | ??M | ??2 | ??1，2 | ??8 |
| ??29 | ??M | ??2 | ??3，4 | ??6?or?8 |
| ??30 | ??M | ??2 | ??5，6 | ??6?or?8 |
| ??31 | ??M | ??2 | ??7，8 | ??8 |
Embodiment 7.
Hypothesis among the embodiment 7:
In the time of a.MU-MIMO, maximum 8 layers of the multiplexing number of plies, the multiplexing number of plies of each UE are at most 2;
B.DMRS has three kinds of patterns, and pattern 1: the maximum number of plies is 1 and 2, pattern 2: the maximum number of plies is 3 and 4, mode 3: the maximum number of plies is 5 to 8
C. notify UE total number of plies
Embodiment 7.1
DCI Format can represent the signaling (unified signaling) of one or two TB
SU-MIMO (number of plies) (8 kinds of states)
State: 1 layer to 8 layers;
MU-MIMO (index of layer)
Rank1:(35 kind state)
Pattern 1: layer 1, layer 2
Pattern 2: layer 1, layer 2, layer 3, layer 4
Mode 3: layer 1, layer 2, layer 3, layer 4, layer 5, layer 6, layer 7, layer 8
Rank2:(15 kind state)
Pattern 2: layer 1 and layer 2, layer 3 and layer 4
Mode 3: layer 1 and layer 2, layer 3 and layer 4, layer 5 and layer 6, layer 7 and layer 8
Status number 8+35+15=58 altogether, signaling consumption is the K=6 bit
According to the embodiment of the invention, a kind of indicating means of transmission means is provided, employing increases indication information in descending control information format, wherein, this indication information is used to indicate the transmission means of subscriber equipment and the information of this transmission means correspondence, has realized supporting the MIMO multi-user based on demodulation pilot frequency to transmit.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Device embodiment
According to embodiments of the invention, a kind of indicating device of transmission means is provided, comprise the increase module, be used for increasing indication information at descending control information format, wherein, indication information is a plurality of bits (specifically being defined as K bit).
Wherein, descending control information format is a kind of new descending control information format (DCIFormat X).
Particularly, when indication information is used to indicate multi-user's transmission means of subscriber equipment, above-mentioned information comprises: the number of plies that the sum of ranks subscriber equipment of multi-user's transmission means correspondence begins to transmit (that is, and the used order of eNB notice UE transmission, and be which layer begins this UE is transmitted).
Particularly, when indication information is used to indicate multi-user's transmission means of subscriber equipment, it is one of following that above-mentioned information also comprises: the pilot frequency design corresponding with multi-user's transmission means, total number of plies of multi-user's transmission means (that is total number of plies of the pilot frequency design (DMRS Pattern) of this transmission usefulness of eNB notice UE or multi-user's transmission).
Particularly, when indication information was used to indicate single user's transmission means, above-mentioned information was the order (that is, eNB notice UE this be the used order of UE transmission) of single user's transmission means correspondence.
Need to prove that the indicating device of the transmission means of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of indicating means and device of transmission means are provided, employing increases indication information in descending control information format, wherein, this indication information is used to indicate the transmission means of subscriber equipment and the information of this transmission means correspondence, has solved the problem of not supporting in the version number 10 of LTE based on MIMO multi-user's transmission of demodulation pilot frequency, has realized supporting the MIMO multi-user based on demodulation pilot frequency to transmit.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the indicating means of a transmission means is characterized in that, comprising:
Increase indication information in descending control information format, wherein, described indication information is used to indicate the transmission means of subscriber equipment and the information of described transmission means correspondence.
2. method according to claim 1 is characterized in that, described indication information is a plurality of bits.
3. method according to claim 2 is characterized in that, the transmission means of described subscriber equipment comprise following one of at least: single user's transmission means, multi-user's transmission means.
4. method according to claim 3 is characterized in that, when described indication information was used to indicate multi-user's transmission means of described subscriber equipment, described information comprised: the layer index that described subscriber equipment transmits.
5. method according to claim 4 is characterized in that, when described indication information is used to indicate described multi-user's transmission means of described subscriber equipment, described information also comprise following one of at least:
The pilot frequency design corresponding, total number of plies of described multi-user's transmission means with described multi-user's transmission means.
6. method according to claim 3 is characterized in that, when described indication information was used to indicate single user's transmission means, described information was the order of described single user's transmission means correspondence.
7. the indicating device of a transmission means is characterized in that, comprising:
Increase module, be used for increasing indication information at descending control information format, wherein, described indication information is used to indicate the transmission means of subscriber equipment and the information of described transmission means correspondence.
8. device according to claim 7 is characterized in that, described indication information is a plurality of bits.
9. device according to claim 8 is characterized in that, when described indication information was used to indicate multi-user's transmission means of described subscriber equipment, described information comprised: the layer index that described subscriber equipment transmits.
10. device according to claim 9 is characterized in that, when described indication information is used to indicate described multi-user's transmission means of described subscriber equipment, described information also comprise following one of at least:
The pilot frequency design corresponding, total number of plies of described multi-user's transmission means with described multi-user's transmission means.
11. device according to claim 7 is characterized in that, when described indication information was used to indicate single user's transmission means, described information was the order of described single user's transmission means correspondence.
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| PCT/CN2010/074832 WO2010145617A1 (en) | 2009-11-02 | 2010-06-30 | Method and device for indicating transmission manner |
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| WO2018228305A1 (en) * | 2017-06-12 | 2018-12-20 | Qualcomm Incorporated | Techniques and apparatuses for signaling regarding control region size |
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| WO2010145617A1 (en) * | 2009-11-02 | 2010-12-23 | 中兴通讯股份有限公司 | Method and device for indicating transmission manner |
| WO2012151735A1 (en) * | 2011-05-06 | 2012-11-15 | 富士通株式会社 | Transmission mode configuration method, user equipment and base station thereof |
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| CN107040345B (en) * | 2016-02-03 | 2020-12-18 | 华为技术有限公司 | Method and apparatus for transmitting pilot signal |
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| CN110537389A (en) * | 2017-05-04 | 2019-12-03 | 华为技术有限公司 | Control information acquisition method and equipment |
| WO2018201410A1 (en) * | 2017-05-04 | 2018-11-08 | 华为技术有限公司 | Method and device for acquiring control information |
| WO2018228305A1 (en) * | 2017-06-12 | 2018-12-20 | Qualcomm Incorporated | Techniques and apparatuses for signaling regarding control region size |
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| WO2021068202A1 (en) * | 2019-10-11 | 2021-04-15 | 华为技术有限公司 | Communication method and communication apparatus |
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| CN114391231B (en) * | 2019-10-11 | 2024-05-03 | 华为技术有限公司 | Communication method and communication device |
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| CN101702638B (en) | 2015-06-03 |
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