CN108234006A - TM8 transmission modes configuration UE reports method and the base station of PMI and RI - Google Patents
TM8 transmission modes configuration UE reports method and the base station of PMI and RI Download PDFInfo
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- CN108234006A CN108234006A CN201611198112.8A CN201611198112A CN108234006A CN 108234006 A CN108234006 A CN 108234006A CN 201611198112 A CN201611198112 A CN 201611198112A CN 108234006 A CN108234006 A CN 108234006A
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- instruction information
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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Abstract
The present invention discloses method and the base station that a kind of TM8 transmission modes configuration UE reports PMI and RI, and method includes：Determine current protocol version and current transmission mode；When R10 protocol versions and current transmission mode before determining that current protocol version is R10 ac0 are TM8, send RRC to the UE in RRC connection status and reconfigure first message；Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC is reconfigured and codebook subset limitation parameter field is included in the aerial information of first message.The present invention is by determining current protocol version and current transmission mode, for each R10 protocol versions before R10 ac0, when TM8 is configured in base station, UE must be configured and report PMI and RI, and limit parameter field including codebook subset, avoid R10 protocol versions that base station and UE are used it is inconsistent caused by UE handover failures go offline the problem of failing with UE access.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of method that TM8 transmission modes configuration UE reports PMI and RI
And base station.
Background technology
Multiple-input and multiple-output (Multiple Input in long term evolution (Long Term Evolution, LTE) system
Multiple Output, MIMO) technology is a kind of multi-antenna technology, the output that data are modulated is mapped to different antenna ends
Mouthful, using the multipath characteristics of channel, obtain spatial multiplex gains (Spatial Multiplexing Gain).
Different multi-antenna technologies corresponds to different transmission modes.There are 9 kinds of different transmission modes in LTE at present：Transmission
Pattern 1 (TM1) to transmission mode 9 (TM9), wherein, transmission mode 8 (TM8) be LTE R9 protocol versions propose it is a kind of by wave
Beam figuration expands to stream transmission, realizes a kind of double-current multi-antenna transmission mould that wave beam forming is combined with space multiplexing technique
Formula.
In the MIMO courses of work of LTE system, an importance for supporting the scheduling of downlink channel correlation is to use
Family equipment (User Equipment, UE) provides channel status reporting to base station, and base station needs to do based on channel status reporting
The decision of scheduling.Channel status reporting includes one or more following information：Channel quality instruction (the Channel of UE feedbacks
Quality Indicator, CQI), order instruction (Rank Indicator, RI) and pre-coding matrix index (Precoding
Matrix Index, PMI), their effect difference is as follows：
CQI：Each antenna beam sends out the quality of signal；
RI：The number of plies (namely number of beams of antenna) of data transmission
PMI：The space vector weight of the wave beam of each antenna, it determines that flowing to the corresponding of antenna port from layer data closes
System.
In LTE system, UE selects a suitable order (Rank) and corresponding pre- according to the measurement result to pilot signal
Then RI and PMI are reported to eNodeB by encoder matrix.
UE feeds back the principle and process of CQI：UE is according to wireless heterogeneous networks (the Radio Resource of base station
Control, RRC) pilot signal of layer instruction measures, period or aperiodic selection up channel report CQI, base station according to
The CQI and combination base station current resource situation that UE is reported, decide whether the modulation system to UE, resource allocation, MIMO
Relevant configuration be adjusted.
UE feeds back the principle and process of RI：After UE makes the estimation of downlink mimo channel, the order instruction RI of channel matrix is obtained,
RI reflects the number of data streams (abbreviation fluxion) that present channel can allow for downlink transfer.This RI is fed back to base station by UE, with
Indicate the fluxion that base station can clearly transmit.
UE feeds back the principle and process of PMI：When needing to use the precoding based on code book in base station, UE makes down channel
Each code word in the channel of estimation and a set of code book, is done the comparison traversed, finds out a best code word of performance by estimation, and
It determines PMI, and this PMI is fed back into base station；That is the PMI that base station is fed back according to UE selects prelisting for best performance
Code matrix.In order to save upstream bandwidth, UE need not feed back specific code book, but feed back the serial number of code book.Furtherly, base station
One group of pre-coding matrix can be limited, UE should select the code book of suggestion from these group of pre-coding matrix, therefore be called and do code
This subset limits (codebook Subset Restriction), can report that avoid in antenna configuration used in this way
A little otiose code books.
CQI, PMI and RI reporting schemes are to be configured by the rrc layer configuration notification of base station to UE, UE based on base station
The reporting schemes of CQI, PMI and RI and downlink transfer pattern report CQI, PMI and RI.
In downlink transfer pattern in TM8 transmission modes, it is typically essential that UE, which reports CQI, and UE reports PMI and the RI to be then
It can be needed to carry out selective configuration according to the application of base station.If base station configuration UE reports PMI and RI, based on selection if UE
PMI and the further reconstruction calculations CQI values of RI；If UE is not configured in base station when reporting PMI and RI, according to assignment algorithm meter if UE
Calculate CQI value；The scheduling decision that reports feedback final determining downlink traffic channel of the base station according to UE.
The base station realized according to 36.331 different R10 protocol versions and UE, in LTE now nets TM8 application test process
It was found that there are problems that base station and UE the UE handover failures caused by the R10 protocol versions of use are inconsistent go offline.
Further, the base station realized according to 36.331 R9 protocol versions and R10-ac0 and its agreement version later
The base station of this realization, in LTE now nets TM8 application test process it has also been found that, if UE uses TM8, under some network environments, base
The configuration UE that stands reports PMI and RI, the downstream data traffic degradation of base station；And under some network environments, UE is not configured in base station
Report PMI and RI, the downstream data traffic degradation of base station.
In conclusion in the prior art, when the transmission mode of base station is TM8, there are base station and UE due to the R10 of use
The problem of UE handover failures caused by protocol version is inconsistent go offline；And under different network environments, there are R9 agreement versions
The problem of downstream data traffic performance of base station that this and R10-ac0 and its agreement version later are realized needs optimization.
Invention content
In view of the above problems, the present invention proposes the one kind for overcoming the above problem or solving the above problems at least partly
TM8 transmission modes configuration UE reports method and the base station of PMI and RI.
In a first aspect, the present invention proposes a kind of method that TM8 transmission modes configuration UE reports PMI and RI, including following step
Suddenly：
Determine current protocol version and current transmission mode；
R10 protocol versions and current transmission mode before determining that current protocol version is R10-ac0 are TM8
When, it sends RRC to the user equipment (UE) in radio resource control RRC connection status and reconfigures first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first and disappears
In the R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 of breath parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
Optionally, the method is further comprising the steps of：
Determine current protocol version be R10-ac0 after protocol version and current transmission mode be TM8 when,
Obtain RI instruction information；
If the RI instruction information is the first instruction information, sending the RRC to the UE in RRC connection status re-matches
Put first message；Wherein, it is normal to be used to indicate RI for the first instruction information；
If RI instruction information is the second instruction information, sends RRC to the UE in RRC connection status and reconfigure the
Two message；Wherein, the second instruction information is used to indicate RI exceptions；The RRC reconfigures second message and the UE is not configured
PMI and RI is reported, and the RRC reconfigures the R10 protocol version dedicated antenna information of second message
CodebookSubsetRestriction-r10 domains are not included in AntennaInfoDedicated-r10.
Optionally, the method is further comprising the steps of：
When determining that current protocol version is R9 protocol versions and current transmission mode is TM8, RI instructions are obtained
Information；
If the RI instruction information is the first instruction information, sending the RRC to the UE in RRC connection status re-matches
Put first message；Wherein, it is normal to be used to indicate RI for the first instruction information；
If RI instruction information is the second instruction information, sends RRC to the UE in RRC connection status and reconfigure the
Two message；Wherein, the second instruction information is used to indicate RI exceptions；The RRC reconfigures second message and the UE is not configured
PMI and RI is reported, and the RRC reconfigures the R10 protocol version dedicated antenna information of second message
CodebookSubsetRestriction-r10 domains are not included in AntennaInfoDedicated-r10.
Optionally, it is described to reconfigure first to the user equipment (UE) transmission RRC in radio resource control RRC connection status
After message, the method is further comprising the steps of：
Based on the UE RI information reported and channel quality indicator CQI information, in TM8 transmission modes switch,
Switching includes in the TM8 transmission modes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Optionally, described after the UE transmissions RRC in RRC connection status reconfigures second message, the method is also wrapped
Include following steps：
Based on the CQI information that the UE is reported, in TM8 transmission modes switch, switching packet in the TM8 transmission modes
It includes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Second aspect, the present invention also proposes a kind of base station, including with lower unit：
Determination unit, for determining current protocol version and current transmission mode；
First transmitting element, for the R10 associations before the determination unit determines current protocol version for R10-ac0
When discussing version and current transmission mode as TM8, sent to the user equipment (UE) in radio resource control RRC connection status
RRC reconfigures first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first and disappears
In the R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 of breath parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
Optionally, the base station is further included with lower unit：
First acquisition unit, for the agreement after the determination unit determines that current protocol version is R10-ac0
When version and current transmission mode are TM8, RI instruction information is obtained；
Second transmitting element, when indicating information for first for the RI instruction information that the first acquisition unit obtains, to
UE in RRC connection status sends the RRC and reconfigures first message；Wherein, the first instruction information is used to indicate RI
Normally；
Third transmitting element, when indicating information for second for the RI instruction information that the first acquisition unit obtains, to
UE in RRC connection status sends RRC and reconfigures second message；Wherein, the second instruction information is used to indicate RI exceptions；
The RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures the R10 agreements of second message
CodebookSubsetRestriction-r10 is not included in version dedicated antenna information AntennaInfoDedicated-r10
Domain.
Optionally, the base station is further included with lower unit：
Second acquisition unit, for determining current protocol version for R9 protocol versions and current in the determination unit
Transmission mode be TM8 when, obtain RI instruction information；
4th transmitting element, for the second acquisition unit obtain RI instruction information for first instruction information, then to
UE in RRC connection status sends the RRC and reconfigures first message；Wherein, the first instruction information is used to indicate RI
Normally；
5th transmitting element, for the second acquisition unit obtain RI instruction information for second instruction information, then to
UE in RRC connection status sends RRC and reconfigures second message；Wherein, the second instruction information is used to indicate RI exceptions；
The RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures the R10 agreements of second message
CodebookSubsetRestriction-r10 is not included in version dedicated antenna information AntennaInfoDedicated-r10
Domain.
Optionally, the base station is further included with lower unit：
First switch unit, for first transmitting element, second transmitting element or the 4th transmitting element
After the user equipment (UE) transmission RRC in radio resource control RRC connection status reconfigures first message, based on the UE
The RI information and channel quality indicator CQI information of report switch in TM8 transmission modes, are switched in the TM8 transmission modes
Including：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Optionally, the base station is further included with lower unit：
Second switch unit, for the third transmitting element or the 5th transmitting element in RRC connection status
UE send after RRC reconfigures second message, based on the CQI information that the UE is reported, in TM8 transmission modes switch, institute
Switching in TM8 transmission modes is stated to include：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Compared with the prior art, TM8 transmission modes configuration UE proposed by the present invention reports method and the base station of PMI and RI,
By determining current protocol version and current transmission mode, for each R10 protocol versions before R10-ac0, work as base
Stand configuration TM8, it is necessary to UE be configured and report PMI and RI, and including codebookSubsetRestriction-r10 domains, avoid
UE handover failures caused by R10 protocol versions that base station and UE are used are inconsistent go offline the problem of failing with UE access.
Further, TM8 transmission modes configuration UE proposed by the present invention reports method and the base station of PMI and RI, by true
Protocol version and current transmission mode before settled, protocol version for R9 protocol versions or R10-ac0 and its later,
RI instruction information is further obtained, when RI is normal, channel circumstance is for and is not suitable for the scene that UE does TM8 double fluid business,
Base station configuration UE reports PMI and RI, and after UE reports the feedback of RI=1, base station is based on this and single stream business processing is carried out to UE.
Further, TM8 transmission modes configuration UE proposed by the present invention reports method and the base station of PMI and RI, by true
Protocol version and current transmission mode before settled, protocol version for R9 protocol versions or R10-ac0 and its later,
RI instruction information is further obtained, when RI exceptions, channel circumstance is for and UE is suitble to do TM8 double fluid business, base station is closed
UE reports PMI and RI, and base station carries out the hand-off process of single double fluid based on the CQI that UE is reported, and improves the downlink data industry of base station
Business performance.
Description of the drawings
Fig. 1 is that the method flow that UE reports PMI and RI is configured in a kind of TM8 transmission modes that first embodiment of the invention provides
Figure；
Fig. 2 is that the method flow that UE reports PMI and RI is configured in a kind of TM8 transmission modes that second embodiment of the invention provides
Figure；
Fig. 3 is that the method flow that UE reports PMI and RI is configured in a kind of TM8 transmission modes that third embodiment of the invention provides
Figure；
Fig. 4 is a kind of architecture of base station schematic diagram that fourth embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, instead of all the embodiments.
The base station realized according to 36.331 different R10 protocol versions and UE now net outfield TM8 applications in LTE and tested
Find there are problems that base station and UE the UE handover failures caused by the R10 protocol versions of use are inconsistent go offline, lead in journey
It crosses analysis test log and finds that in handoff procedure the problem is lacked in the RRC reconfiguration messages sent with base station to UE
The relevant codebook subset limitation parameters (codebookSubset Restriction-r10) of PMI are related.
Further analyze relevant protocol discovery, each R10 protocol versions before R10-ac0 are relevant to TM8
Codebook subset limits parameter in AntennaInfoDedicated-r10 (R10 protocol version dedicated antennas information)
There are contradictions for the definition and description of codebookSubsetRestriction-r10 fields.Such as it is assisted in 36.331 R10-a60
It discusses in version, the description in codebook subset limitation parameter is：If UE is configured to transmission mode TM8, base station be only configured PMI and
When RI is fed back, codebookSubsetRestriction-r10 is just configured in base station.
And in R10-a60 protocol versions for condition TMX (transmission mode X, X are variable, X can be 1,2,,, 9)
Explanation is：CodebookSubsetRestriction-r10 is essential when transmission mode is 3,4,5,6,8,9, other
This parameter does not need to occur under scene.
The description above is mutually contradiction, if during using TM8, PMI and RI feedbacks are not configured in base station, then will not match
CodebookSubsetRestriction-r10 is put, but codebookSubsetRestriction-r10 transmits mould in TM8
It is again essential under formula.There is relevant explanation in the motion CR1381 (RP-131991) submitted for this problem.
To revise above-mentioned R10 protocol versions for contradiction mistake existing for the explanation of aerial information, motion CR1381
(RP-131991) submission proposes modification to this problem.Therefore the R10-ac0 protocol versions 36.331 and its later each
In R10 protocol versions, the TMX description revisions for codebookSubsetRestriction-r10 parameters are as follows, when transmission mould
The parameter is essential when formula is 3,4,5,6, and when transmission mode is 8,9, the parameter is when only base station configuration PMI and RI is fed back
Essential, this parameter does not need to occur under other scenes.
In conclusion base station and UE according to 36.331 different R10 protocol versions realizations, TM8 processes are used in existing net
In, it may appear that following service exception problem：
The transmission mode of UE configurations is TM8, when the RRC that PMI and RI feedbacks namely base station transmission are not configured for base station is reconfigured
PMI and RI feedbacks are not configured in message, but RRC reconfiguration messages include codebookSubsetRestriction-r10
Domain (namely codebookSubsetRestriction-r10 domains are included in AntennaInfoDedicated-r10), that is,
Base station is said according to the R10 protocol versions before R10-ac0 to realize, but if UE is according to the R10 agreement versions after R10-ac0
Original to realize, UE may refuse this configuration of base station, because the R10 protocol versions after R10-ac0 are under TM8 patterns,
If base station be not configured PMI and RI feedback, codebookSubsetRestriction-r10 domains there are ineligible.
Fail so as to cause UE when being switched to the base station.
The transmission mode of UE configurations is TM8, feeds back when PMI and RI is not configured for base station, does not also include in RRC reconfiguration messages
CodebookSubsetRestriction-r10 domains, that is to say, that base station is come real according to the R10 protocol versions after R10-ac0
It is existing, and UE is realized according to the R10 protocol versions before R10-ac0, due in the R10 protocol versions before R10-ac0
CodebookSubsetRestriction-r10 fields are essential when transmission mode is 3,4,5,6,8,9, so if
CodebookSubsetRestriction-r10 domains are not present, therefore UE will refuse this configuration that base station issues, finally
It can lead to UE handover failures.
Certainly, the description more than is both for AntennaInfoDedicated-r10, that is to say, that only R10 versions
It will appear the problem of being described above.
Further, the base station realized according to 36.331 R9 protocol versions and R10-ac0 and its agreement version later
The base station of this realization also found in LTE now nets TM8 application test process, if UE uses TM8, in some channel circumstances not
Suitable UE is done under the scene of TM8 double fluid business, such as 2 antenna ports of current base station are abnormal there are one there is transmission power,
If UE only reports CQI not report PMI and RI, base station only can carry out double-current business processing by judging CQI, but at this time because
It is abnormal there are one channel, is not suitable for doing double-current business, leads to the downstream data traffic poor performance of base station reality.
And UE is suitble to do the scene of TM8 double fluid business in some channel circumstances, but base station reports PMI and RI in configuration UE
Afterwards, after causing UE that RI=1, base station is reported to be scheduled judgement based on RI=1 always if as factors such as some network interferences
UE is made to carry out single stream business always, it is relatively low so as to cause the double-current business accounting of the base station, affect the base station data business
Using with corresponding Key Performance Indicator (Key Performance Indicators, KPI).
In conclusion in the prior art, when the transmission mode of base station is TM8, there are base station and UE due to the R10 of use
The problem of UE handover failures caused by protocol version is inconsistent go offline；And under different network environments, there are R9 agreement versions
The problem of downstream data traffic performance of base station that this and R10-ac0 and its agreement version later are realized needs optimization.
It should be noted that hereinafter, the relational terms of such as " first " and " second " or the like are used merely to phase
Same title distinguishes rather than implies the relationship or sequence between these titles.
For this purpose, as shown in Figure 1, the present embodiment discloses the method that TM8 transmission modes configuration UE reports PMI and RI, it may include
Following steps 101~102：
101st, current protocol version and current transmission mode are determined.
The executive agent of the present embodiment is base station, and current protocol version and current transmission mould are determined in step 101
The mode of formula can be that the artificial protocol version for triggering or indicating and transmission mode are voluntarily searched or received in base station, for example, network
The indicator for carrying protocol version and transmission mode that administrative staff are sent by network management system to base station, to indicate base station
Current protocol version and transmission mode.
102nd, the R10 protocol versions before determining current protocol version for R10-ac0 and current transmission mode
During for TM8, to the user equipment (User in wireless heterogeneous networks (Radio Resource Control, RRC) connection status
Equipment, UE) send RRC reconfigure first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first and disappears
In the R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 of breath parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
In the present embodiment, the RRC is reconfigured to be included in the AntennaInfoDedicated-r10 of first message
CodebookSubsetRestriction-r10 domains namely the RRC are reconfigured in first message and are carried
CodebookSubsetRestriction-r10 information.
In the present embodiment, as long as determining current protocol version for any in each R10 protocol versions before R10-ac0
When R10 protocol versions and transmission mode are TM8, just sent out to the user equipment (UE) in radio resource control RRC connection status
RRC is sent to reconfigure first message.
As it can be seen that the method that TM8 transmission modes configuration UE disclosed in the present embodiment reports PMI and RI, by determining currently
Protocol version and current transmission mode, for each R10 protocol versions before R10-ac0, when TM8 is configured in base station, it is necessary to
Configuration UE reports PMI and RI, and including codebookSubsetRestriction-r10 domains, avoids base station and UE is used
R10 protocol versions it is inconsistent caused by UE handover failures go offline the problem of failing with UE access.
As shown in Fig. 2, the present embodiment discloses a kind of method that TM8 transmission modes configuration UE reports PMI and RI, it may include with
Lower step 201~204：
201st, current protocol version and current transmission mode are determined.
The step is identical with step 101 shown in FIG. 1, and details are not described herein.
202nd, determine current protocol version be R10-ac0 after protocol version and current transmission mode be
During TM8, RI instruction information is obtained.
In the present embodiment, the mode for obtaining RI instruction information is, for example, to receive RI instruction information, and RI instruction information
Sender can be network management system, and specifically, RI instructions information can be by network management personnel based on network KPI indexs, base station
The RI instruction information that the network performance informations such as channel circumstance and/or network optimization daily record are analyzed.There are two types of RI instruction information：
It is used to indicate the normal first instruction information of RI and is used to indicate the second abnormal instruction information of RI.
If the 203, the RI instruction information is the first instruction information, the RRC is sent to the UE in RRC connection status
Reconfigure first message；Wherein, it is normal to be used to indicate RI for the first instruction information.
In the present embodiment, when RI is normal, it is for channel circumstance and is not suitable for the scene that UE does TM8 double fluid business, base
The configuration UE that stands reports PMI and RI, and specifically, base station reconfigures first to the UE transmissions RRC in RRC connection status and disappears
Breath.
If the 204, the RI instruction information is the second instruction information, sending RRC to the UE in RRC connection status re-matches
Put second message；Wherein, the second instruction information is used to indicate RI exceptions；The RRC reconfigures second message and institute is not configured
It states UE and reports PMI and RI, and the RRC reconfigures the R10 protocol version dedicated antenna information of second message
CodebookSubsetRestriction-r10 domains are not included in AntennaInfoDedicated-r10.
In the present embodiment, when RI exceptions, it is for channel circumstance and UE is suitble to do TM8 double fluid business, UE is closed in base station
PMI and RI is reported, specifically, base station sends the RRC to the UE in RRC connection status and reconfigures second message, wherein not
The UE is configured and reports PMI and RI, and the RRC reconfigures the aerial information AntennaInfoDedicated- of second message
CodebookSubsetRestriction-r10 domains are not included in r10.
As shown in figure 3, the present embodiment discloses a kind of method that TM8 transmission modes configuration UE reports PMI and RI, it may include with
Lower step 301~304：
301st, current protocol version and current transmission mode are determined.
In the present embodiment, the step is identical with step 201 shown in Fig. 2, and details are not described herein.
302nd, when determining that current protocol version is R9 protocol versions and current transmission mode is TM8, RI is obtained
Indicate information；
If the 303, the RI instruction information is the first instruction information, the RRC is sent to the UE in RRC connection status
Reconfigure first message；Wherein, it is normal to be used to indicate RI for the first instruction information；
If the 304, the RI instruction information is the second instruction information, sending RRC to the UE in RRC connection status re-matches
Put second message；Wherein, the second instruction information is used to indicate RI exceptions；The RRC reconfigures second message and institute is not configured
It states UE and reports PMI and RI, and the RRC reconfigures the R10 protocol version dedicated antenna information of second message
CodebookSubsetRestriction-r10 domains are not included in AntennaInfoDedicated-r10.
In the present embodiment, other than the condition of step 302 and the condition difference of step 202 shown in Fig. 2, remaining step
301st, 303,304 and 302 it is described obtain RI instruction information respectively with described in step 201 shown in Fig. 2,203,204 and 202
It is identical to obtain RI instructions information, each step explanation can be found in Fig. 2 embodiments in the present embodiment, and the present embodiment repeats no more.
In a specific example, in RRC connection shapes in Fig. 1 steps 102, Fig. 2 steps 203 and Fig. 3 steps 303
After the UE transmissions RRC of state reconfigures first message, including following steps unshowned in following figure：
Based on the UE RI information reported and channel quality indicator CQI information, in TM8 transmission modes switch,
Switching includes in the TM8 transmission modes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
As it can be seen that the method that TM8 transmission modes configuration UE disclosed in the present embodiment reports PMI and RI, by determining currently
Protocol version and current transmission mode, protocol version for R9 protocol versions or R10-ac0 and its later, are further obtained
RI is taken to indicate information, when RI is normal, channel circumstance is for and is not suitable for the scene that UE does TM8 double fluid business, base station configuration
UE reports PMI and RI, and after UE reports the feedback of RI=1, base station is based on this and single stream business processing is carried out to UE.
In a specific example, sent in Fig. 2 steps 204 and Fig. 3 steps 304 to the UE in RRC connection status
After RRC reconfigures second message, including following steps unshowned in following figure：
Based on the CQI information that the UE is reported, in TM8 transmission modes switch, switching packet in the TM8 transmission modes
It includes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
As it can be seen that the method that TM8 transmission modes configuration UE disclosed in the present embodiment reports PMI and RI, by determining currently
Protocol version and current transmission mode, protocol version for R9 protocol versions or R10-ac0 and its later, are further obtained
RI is taken to indicate information, when RI exceptions, channel circumstance is for and UE is suitble to do TM8 double fluid business, base station closes UE and reports PMI
And RI, base station carry out the hand-off process of single double fluid based on the CQI that UE is reported, and improve the downstream data traffic performance of base station.
The method that TM8 transmission modes configuration UE disclosed in more than each method embodiment reports PMI and RI, it is current by determining
Protocol version and current transmission mode,, must when TM8 is configured in base station for each R10 protocol versions before R10-ac0
UE must be configured and report PMI and RI, and including codebookSubsetRestriction-r10 domains, avoid base station and UE is adopted
UE handover failures caused by R10 protocol versions are inconsistent go offline the problem of failing with UE access.
Further, the method that TM8 transmission modes configuration UE disclosed in more than each method embodiment reports PMI and RI, leads to
It crosses and determines current protocol version and current transmission mode, agreement for R9 protocol versions or R10-ac0 and its later
Version further obtains RI instruction information, when RI is normal, is for channel circumstance and is not suitable for UE doing TM8 double fluid business
Scene, base station configuration UE reports PMI and RI, and after UE reports the feedback of RI=1, base station is based on this and UE is carried out at single stream business
Reason.
Further, the method that TM8 transmission modes configuration UE disclosed in more than each method embodiment reports PMI and RI, leads to
It crosses and determines current protocol version and current transmission mode, agreement for R9 protocol versions or R10-ac0 and its later
Version further obtains RI instruction information, when RI exceptions, is for channel circumstance and UE is suitble to do TM8 double fluid business, base station
It closes UE and reports PMI and RI, base station carries out the hand-off process of single double fluid based on the CQI that UE is reported, and improves the lower line number of base station
According to service feature.
As shown in figure 4, the present embodiment discloses a kind of base station, it may include with lower unit：Determination unit 41 and first sends single
Member 42, each unit is described as follows：
Determination unit 41, for determining current protocol version and current transmission mode；
First transmitting element 42, for the R10 before the determination unit determines current protocol version for R10-ac0
When protocol version and current transmission mode are TM8, sent out to the user equipment (UE) in radio resource control RRC connection status
RRC is sent to reconfigure first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first and disappears
In the R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 of breath parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
Base station disclosed in the present embodiment is, it can be achieved that the method that TM8 transmission modes shown in FIG. 1 configuration UE reports PMI and RI
Flow, therefore, the effect and explanation of the base station in the present embodiment can be found in embodiment of the method shown in FIG. 1, and details are not described herein.
In a specific example, the base station further includes unshowned such as lower unit in Fig. 4：First acquisition unit
43rd, the second transmitting element 44 and third transmitting element 45, each unit is described as follows：
First acquisition unit 43, after determining current protocol version for R10-ac0 in the determination unit 41
When protocol version and current transmission mode are TM8, RI instruction information is obtained；
Second transmitting element 44 is the first instruction information for the RI instruction information that the first acquisition unit 43 obtains
When, it sends the RRC to the UE in RRC connection status and reconfigures first message；Wherein, the first instruction information is used to refer to
Show that RI is normal；
Third transmitting element 45 is the second instruction information for the RI instruction information that the first acquisition unit 43 obtains
When, it sends RRC to the UE in RRC connection status and reconfigures second message；Wherein, the second instruction information is used to indicate RI
It is abnormal；The RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures second message
Do not include in R10 protocol version dedicated antenna information AntennaInfoDedicated-r10
CodebookSubsetRestriction-r10 domains.
In a specific example, the base station further includes unshowned such as lower unit in Fig. 4：Second acquisition unit
46th, the 4th transmitting element 47 and the 5th transmitting element 48, each unit are described as follows：
Second acquisition unit 46, for the determination unit 41 determine current protocol version for R9 protocol versions and
When current transmission mode is TM8, RI instruction information is obtained；
4th transmitting element 47 is the first instruction information for the RI instruction information that the second acquisition unit 46 obtains,
Then the RRC is sent to the UE in RRC connection status reconfigure first message；Wherein, the first instruction information is used to refer to
Show that RI is normal；
5th transmitting element 48 is the second instruction information for the RI instruction information that the second acquisition unit 46 obtains,
Then RRC is sent to the UE in RRC connection status reconfigure second message；Wherein, the second instruction information is used to indicate RI
It is abnormal；The RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures second message
Do not include in R10 protocol version dedicated antenna information AntennaInfoDedicated-r10
CodebookSubsetRestriction-r10 domains.
In a specific example, the base station further includes unshowned such as lower unit in Fig. 4：First switch unit
49。
First switch unit 49, for first transmitting element 42, second transmitting element 44 or the 4th hair
Unit 47 is sent to be based on after the user equipment (UE) transmission RRC in radio resource control RRC connection status reconfigures first message
The RI information and channel quality indicator CQI information that the UE is reported switch in TM8 transmission modes, and the TM8 transmits mould
Switching includes in formula：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
In a specific example, the base station further includes unshowned such as lower unit in Fig. 4：Second switch unit
50。
Second switch unit 50 connects for the third transmitting element 45 or the 5th transmitting element 48 in RRC
The UE for connecing state is sent after RRC reconfigures second message, based on the CQI information that the UE is reported, carries out TM8 transmission mode inscribes
It changes, switches in the TM8 transmission modes and include：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Base station disclosed in more than each method embodiment, by determining current protocol version and current transmission mode,
For each R10 protocol versions before R10-ac0, when TM8 is configured in base station, it is necessary to UE is configured and reports PMI and RI, and including
CodebookSubsetRestriction-r10 domains avoid the inconsistent caused UE of R10 protocol versions of base station and UE uses
Handover failure goes offline the problem of failing with UE access.
Further, base station disclosed in more than each method embodiment, by determining current protocol version and currently
Transmission mode, protocol version for R9 protocol versions or R10-ac0 and its later further obtain RI instruction information, work as RI
When normal, it is for channel circumstance and is not suitable for the scene that UE does TM8 double fluid business, base station configuration UE reports PMI and RI, in UE
After the feedback for reporting RI=1, base station is based on this and single stream business processing is carried out to UE.
Further, base station disclosed in more than each method embodiment, by determining current protocol version and currently
Transmission mode, protocol version for R9 protocol versions or R10-ac0 and its later further obtain RI instruction information, work as RI
When abnormal, it is for channel circumstance and UE is suitble to do TM8 double fluid business, base station closes UE and reports PMI and RI, and base station is based on UE
The CQI of report carries out the hand-off process of single double fluid, improves the downstream data traffic performance of base station.
It will be understood by those skilled in the art that each unit in embodiment can be combined into a unit and in addition
Multiple subelements can be divided into.In addition to such feature and/or at least some of process or unit are to arrange mutually
Reprimand part may be used any combinations to all features disclosed in this specification and such disclosed any method or set
Standby all processes or unit are combined.Unless expressly stated otherwise, each feature disclosed in this specification can be by carrying
It is replaced for the alternative features of identical, equivalent or similar purpose.
It will be appreciated by those of skill in the art that although some embodiments described herein include being wrapped in other embodiments
The certain features rather than other feature included, but the combination of the feature of different embodiment mean in the scope of the present invention it
It is interior and form different embodiments.
It will be understood by those skilled in the art that each unit in embodiment can with hardware realization or at one or
The software module run on the multiple processors of person is realized or is realized with combination thereof.Those skilled in the art should manage
Solution, can realize according to embodiments of the present invention one using microprocessor or digital signal processor (DSP) in practice
The some or all functions of a little or whole components.The present invention is also implemented as performing method as described herein
Some or all equipment or program of device (for example, computer program and computer program product).
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can not depart from this hair
Various modifications and variations are made in the case of bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (10)
1. a kind of method that TM8 transmission modes configuration UE reports PMI and RI, which is characterized in that include the following steps：
Determine current protocol version and current transmission mode；
When R10 protocol versions and current transmission mode before determining that current protocol version is R10-ac0 are TM8,
RRC, which is sent, to the user equipment (UE) in radio resource control RRC connection status reconfigures first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first message
In R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
2. according to the method described in claim 1, it is characterized in that, the method is further comprising the steps of：
Determine current protocol version be R10-ac0 after protocol version and current transmission mode be TM8 when, obtain
RI indicates information；
If RI instruction information is the first instruction information, sends the RRC to the UE in RRC connection status and reconfigure the
One message；Wherein, it is normal to be used to indicate RI for the first instruction information；
If the RI instruction information is the second instruction information, reconfigures second to the UE transmissions RRC in RRC connection status and disappear
Breath；Wherein, the second instruction information is used to indicate RI exceptions；The RRC, which reconfigures second message the UE is not configured, to be reported
PMI and RI, and the RRC reconfigures the R10 protocol version dedicated antenna information AntennaInfoDedicated- of second message
CodebookSubsetRestriction-r10 domains are not included in r10.
3. according to the method described in claim 1, it is characterized in that, the method is further comprising the steps of：
When determining that current protocol version is R9 protocol versions and current transmission mode is TM8, RI instruction information is obtained；
If RI instruction information is the first instruction information, sends the RRC to the UE in RRC connection status and reconfigure the
One message；Wherein, it is normal to be used to indicate RI for the first instruction information；
If the RI instruction information is the second instruction information, reconfigures second to the UE transmissions RRC in RRC connection status and disappear
Breath；Wherein, the second instruction information is used to indicate RI exceptions；The RRC, which reconfigures second message the UE is not configured, to be reported
PMI and RI, and the RRC reconfigures the R10 protocol version dedicated antenna information AntennaInfoDedicated- of second message
CodebookSubsetRestriction-r10 domains are not included in r10.
4. method according to any one of claims 1 to 3, which is characterized in that described to connect in radio resource control RRC
The user equipment (UE) for connecing state is sent after RRC reconfigures first message, and the method is further comprising the steps of：
Based on the UE RI information reported and channel quality indicator CQI information, in TM8 transmission modes switch, it is described
Switching includes in TM8 transmission modes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
5. according to the method in claim 2 or 3, which is characterized in that described to send RRC to the UE in RRC connection status
After reconfiguring second message, the method is further comprising the steps of：
Based on the CQI information that the UE is reported, switch in TM8 transmission modes, switch in the TM8 transmission modes and include：
The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
6. a kind of base station, which is characterized in that including with lower unit：
Determination unit, for determining current protocol version and current transmission mode；
First transmitting element, for the R10 agreement versions before the determination unit determines current protocol version for R10-ac0
When this and current transmission mode is TM8, RRC is sent to the user equipment (UE) in radio resource control RRC connection status
Reconfigure first message；
Wherein, the RRC reconfigures the first message configuration UE and reports PMI and RI, and the RRC reconfigures first message
In R10 protocol version dedicated antenna information AntennaInfoDedicated-r10 parameter is limited comprising codebook subset
CodebookSubsetRestriction-r10 domains.
7. base station according to claim 6, which is characterized in that the base station is further included with lower unit：
First acquisition unit, for the protocol version after the determination unit determines that current protocol version is R10-ac0
And current transmission mode be TM8 when, obtain RI instruction information；
Second transmitting element, for the first acquisition unit obtain RI instruction information for first instruction information when, in
The UE of RRC connection status sends the RRC and reconfigures first message；Wherein, it is normal to be used to indicate RI for the first instruction information；
Third transmitting element, for the first acquisition unit obtain RI instruction information for second instruction information when, in
The UE of RRC connection status sends RRC and reconfigures second message；Wherein, the second instruction information is used to indicate RI exceptions；It is described
RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures the R10 protocol versions of second message
CodebookSubsetRestriction-r10 domains are not included in dedicated antenna information AntennaInfoDedicated-r10.
8. base station according to claim 6, which is characterized in that the base station is further included with lower unit：
Second acquisition unit, for determining that current protocol version is R9 protocol versions and current biography in the determination unit
When defeated pattern is TM8, RI instruction information is obtained；
4th transmitting element, for the second acquisition unit obtain RI instruction information for first instruction information, then in
The UE of RRC connection status sends the RRC and reconfigures first message；Wherein, it is normal to be used to indicate RI for the first instruction information；
5th transmitting element, for the second acquisition unit obtain RI instruction information for second instruction information, then in
The UE of RRC connection status sends RRC and reconfigures second message；Wherein, the second instruction information is used to indicate RI exceptions；It is described
RRC, which reconfigures second message the UE is not configured, reports PMI and RI, and the RRC reconfigures the R10 protocol versions of second message
CodebookSubsetRestriction-r10 domains are not included in dedicated antenna information AntennaInfoDedicated-r10.
9. according to claim 6 to 8 any one of them base station, which is characterized in that the base station is further included with lower unit：
First switch unit, for first transmitting element, second transmitting element or the 4th transmitting element to place
After the user equipment (UE) transmission RRC of radio resource control RRC connection status reconfigures first message, reported based on the UE
RI information and channel quality indicator CQI information in TM8 transmission modes switch, switching packet in the TM8 transmission modes
It includes：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
10. base station according to claim 7 or 8, which is characterized in that the base station is further included with lower unit：
Second switch unit, for the third transmitting element or the 5th transmitting element to the UE in RRC connection status
After transmission RRC reconfigures second message, based on the CQI information that the UE is reported, in TM8 transmission modes switch, the TM8
Switching includes in transmission mode：The mono- stream wave beam formings of TM8, TM8 dual-stream beamformings and transmitting diversity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198112.8A CN108234006B (en) | 2016-12-22 | 2016-12-22 | Method and base station for configuring UE (user equipment) reporting PMI (PMI indication) and RI (Ri indication) in TM8 (Transmission mode) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198112.8A CN108234006B (en) | 2016-12-22 | 2016-12-22 | Method and base station for configuring UE (user equipment) reporting PMI (PMI indication) and RI (Ri indication) in TM8 (Transmission mode) |
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| CN108234006A true CN108234006A (en) | 2018-06-29 |
| CN108234006B CN108234006B (en) | 2020-07-24 |
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| CN201611198112.8A Active CN108234006B (en) | 2016-12-22 | 2016-12-22 | Method and base station for configuring UE (user equipment) reporting PMI (PMI indication) and RI (Ri indication) in TM8 (Transmission mode) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078318A1 (en) * | 2018-10-19 | 2020-04-23 | 华为技术有限公司 | Communication method and apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120076076A1 (en) * | 2010-09-27 | 2012-03-29 | Samsung Electronics Co. Ltd. | Method and apparatus for connecting to network from mobile terminal |
| CN102550080A (en) * | 2009-09-30 | 2012-07-04 | 瑞典爱立信有限公司 | Methods and arrangements in a mobile telecommunication system |
| CN102970119A (en) * | 2012-11-09 | 2013-03-13 | 大唐移动通信设备有限公司 | Method for switching first transmission mode into second transmission mode |
-
2016
- 2016-12-22 CN CN201611198112.8A patent/CN108234006B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102550080A (en) * | 2009-09-30 | 2012-07-04 | 瑞典爱立信有限公司 | Methods and arrangements in a mobile telecommunication system |
| US20120076076A1 (en) * | 2010-09-27 | 2012-03-29 | Samsung Electronics Co. Ltd. | Method and apparatus for connecting to network from mobile terminal |
| CN102970119A (en) * | 2012-11-09 | 2013-03-13 | 大唐移动通信设备有限公司 | Method for switching first transmission mode into second transmission mode |
Non-Patent Citations (1)
| Title |
|---|
| QUALCOMM INCORPORATED, SAMSUNG, LG ELECTRONICS INC: "Correction on presence of codebookSubsetRestriction-r10", 《3GPP TSG-RAN MEETING #84 R2-134580》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078318A1 (en) * | 2018-10-19 | 2020-04-23 | 华为技术有限公司 | Communication method and apparatus |
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