CN109413691A - A kind of method and apparatus of reporting channel status information - Google Patents
A kind of method and apparatus of reporting channel status information Download PDFInfo
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Abstract
A kind of method this application discloses reporting channel status information (CSI) includes: that user equipment (UE) selects at least one BWP from least one portions of bandwidth (BWP) of configuration；UE calculates CSI report according to selected BWP；UE sends CSI report to base station.Disclosed herein as well is a kind of devices for reporting CSI.Using technical solution disclosed in the present application, it can guarantee normally reporting for CSI report in the Transmission system newly eated dishes without rice or wine.
Description
Technical field
This application involves wireless communication technology field, in particular to a kind of method and apparatus of reporting channel status information.
Background technique
In order to make base station know down channel quality, user equipment (UE, User Equipment) Xiang Jizhan reporting channel
Status information (CSI, Channel State Information) report.CSI report includes period CSI report and aperiodic CSI
Report.Wherein, period CSI report is to report that aperiodic CSI report is according to the period and time migration of high-level signaling configuration
Dispatch the Downlink Control Information of Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) in base station
CSI request information in (DCI, Downlink Control Information) is come what is driven, and UE is according to CSI request information
Instruction sends aperiodic CSI report to the base station of serving cell.CSI described here may include: channel quality instruction
(CQI, Channel Quality Indicator), pre-coding matrix instruction (PMI, Precoding Matrix
Indicator), order instruction (RI, Rank Indicator) etc..
In newly eat dishes without rice or wine (NR, New Radio), the bandwidth of a serving cell can be very big, and the ability of UE possibly can not prop up
The whole bandwidth of serving cell is held, can only support a part of bandwidth in the whole bandwidth of serving cell, in this way, UE can be configured
Multiple portions of bandwidth (BWP, Bandwidth Part), and be non-in the BWP of only one activation of same time, other BWP
The BWP of activation, also, can have the BWP of different activation at the time of difference, it may be assumed that the BWP of activation can become at different times
It changes, as shown in Figure 1.In this case, how to report that CSI is to need the problem of studying.
Summary of the invention
The application provides a kind of method of reporting channel status information, can guarantee CSI in the Transmission system newly eated dishes without rice or wine
Report normally reports.
This application discloses the methods of reporting channel status information CSI a kind of, comprising:
User equipment (UE) selects at least one BWP from the portions of bandwidth BWP of configuration；
UE calculates CSI report according to selected BWP；
UE sends CSI report to base station.
Preferably, the CSI report is aperiodic CSI report, and is only included in primary aperiodic CSI report according to one
The aperiodic CSI report that channel and disturbed condition in BWP calculate.
Preferably, the UE selects at least one BWP to include: from the BWP of configuration
UE selects the BWP of activation from the BWP of configuration；The BWP of the activation is that transmission drives the aperiodic CSI report
DCI where in time slot, it is desirable that report the BWP activated in the serving cell of aperiodic CSI report；
Alternatively, UE selects the best BWP of a channel quality from the BWP of configuration.
It preferably, the CSI report is aperiodic CSI report, and include according at least two in primary aperiodic CSI report
At least two aperiodic CSI reports that channel and disturbed condition in a BWP calculate.
Preferably, it includes following one that the UE selects at least one BWP from the BWP of configuration:
UE selects the BWP of activation from the BWP of configuration, and selects at least one channel quality best from the BWP of configuration
BWP；The BWP of the activation is in time slot where transmission drives the DCI of the aperiodic CSI report, it is desirable that is reported aperiodic
The BWP activated in the serving cell of CSI report；
UE selects at least two BWP according to the configuration of high-level signaling and the instruction of physical layer signaling from the BWP of configuration；
The BWP that UE selects at least two channel qualities best from the BWP of configuration.
Preferably, the CSI report is period CSI report, and is only reported configured with a set of period CSI report, primary week
The period CSI report that channel and disturbed condition in the BWP according to activation calculate is only included in phase CSI report；
The UE includes: the BWP that UE selects activation from the BWP of configuration from least one BWP is selected in the BWP of configuration.
Preferably, the CSI report is period CSI report, and is reported configured at least two sets of period CSI reports, wherein
A set of period CSI report is that the channel and disturbed condition in the BWP activated in the BWP according to configuration calculate, remaining period
CSI report is the either basis of the channel and disturbed condition calculating in the inactive BWP of at least one in the BWP according to configuration
What channel and disturbed condition in all BWP calculated.
Preferably, this method further include: UE determine the aperiodic CSI report institute according to channel state information with reference to letter
Number CSI-RS resource, and receive corresponding CSI-RS.
Preferably, it includes following one that UE, which receives corresponding CSI-RS:
When UE receives aperiodic CSI-RS driving, UE is received in all BWP that UE is configured respectively in different descending time slots
CSI-RS or respectively receive UE configuration all BWP in specify part BWP in CSI-RS；
The CSI-RS resource of UE reception period CSI report；
UE is according to the CSI- in the sequence preferential receipt and the nearest BWP in aperiodic CSI report interval of the BWP serial number of setting
RS。
Preferably, this method further include: UE determine a set of period CSI report institute according to CSI-RS resource, and connect
Receive corresponding CSI-RS.
Preferably, the corresponding CSI-RS of UE reception includes:
According to the configuration of a set of period CSI report, the corresponding time slot of the BWP activated in the BWP of configuration is received
CSI-RS。
Preferably, this method further include: UE determine it is described at least two sets the period CSI report institute according to CSI-RS resource,
And receive corresponding CSI-RS.
Preferably, the corresponding CSI-RS of UE reception includes:
According to the configuration of two sets of period CSI reports, the corresponding time slot of the BWP activated in the BWP of configuration receives one
CSI-RS is covered, and the BWP or the corresponding time slot of inactive BWP that activate in the BWP of configuration receive remaining CSI-RS.
Disclosed herein as well is a kind of devices for reporting CSI, comprising:
BWP selecting module, for selecting at least one BWP from least one BWP that described device is configured；
CSI computing module, for calculating CSI report according to selected BWP；
CSI reporting module, for sending CSI report to base station.
As seen from the above technical solution, the application is by selecting at least one BWP from least one BWP of configuration by UE
For calculating CSI, and is determined according to the type of selected BWP and calculate the method for CSI and then calculate CSI, and sent to base station
CSI report ensure that the normal of CSI report reports in the Transmission system newly eated dishes without rice or wine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the BWP in an existing serving cell；
Fig. 2 is a kind of basic procedure schematic diagram for the method for reporting CSI of the application；
Fig. 3 is the schematic diagram for calculating aperiodic CSI report in the embodiment of the present application one according to the BWP of activation；
Fig. 4 is the different schematic diagram of the BWP of different moments activation in the embodiment of the present application；
Fig. 5 is in the embodiment of the present application two according to the schematic diagram of the BWP calculating cycle CSI report of activation；
Fig. 6 for 2 sets of period CSI reports in the embodiment of the present application two the BWP of basis respectively schematic diagram；
Fig. 7 is schematic diagram at the time of reporting self-contained CSI report and non-self-contained CSI report in the embodiment of the present application two；
Fig. 8 is the schematic diagram that UE different moments receive CSI-RS in all BWP in the embodiment of the present application three；
Fig. 9 is the schematic diagram that UE different moments receive CSI-RS in part BWP in the embodiment of the present application three；
Figure 10 is the schematic diagram of time slot where the CSI-RS resource of each BWP in the embodiment of the present application three；
Figure 11 is sequence preferential receipt and aperiodic CSI of the UE according to BWP serial number from big to small in the embodiment of the present application three
The schematic diagram of CSI-RS in the nearest BWP of report interval；
Figure 12 is the schematic diagram that synchronization only transmits CSI-RS on a BWP in the embodiment of the present application four；
Figure 13 is to be transmitted in the form of time-multiplexed in multiple BWP in a time window in the embodiment of the present application four
The schematic diagram of CSI-RS；
The schematic diagram for the period gap that Figure 14 is configured by the embodiment of the present application five；
Figure 15 is that UE detects CORESET and receives the time slot schematic diagram of PDSCH in five method one of the embodiment of the present application；
Figure 16 be five method two of the embodiment of the present application in when the CORESET of time slot n is Chong Die with gap UE not at this
The schematic diagram of CORESET detection CORESET；
Figure 17 be five method two of the embodiment of the present application in when the CORESET of time slot n is not be overlapped with gap UE at this
The schematic diagram of CORESET detection CORESET；
Figure 18 is the basic structure schematic diagram of the preferably device of report CSI of the application one.
Specific embodiment
It is right hereinafter, referring to the drawings and the embodiments, for the objects, technical solutions and advantages of the application are more clearly understood
The application is described in further detail.
When UE is configured at least one BWP, and only one BWP is activated simultaneously, UE can only receive a BWP's simultaneously
Data and reference signal.
Fig. 2 be the application propose a kind of report CSI method basic flow chart, as shown in Fig. 2, this method include with
Lower step:
Step 201:UE selects at least one BWP from least one BWP of configuration.
Step 202:UE calculates CSI report according to the BWP that step 201 is selected.
Here it is possible to the method for calculating CSI report be determined according to the type of the BWP first, further according to identified side
Method calculates CSI report.Wherein, the type of the BWP refers to that BWP is the BWP or inactive BWP of activation.
Calculated CSI report is sent to base station by step 203:UE.
Below by several preferred embodiments, technical scheme is further elaborated.The application is needle
How CSI measurement or wireless resource management (RRM) are reported in the case where to BWP and inactive BWP of the UE configured with activation
The method of measurement.CSI measurement or wireless resource management (RRM) measurement on the BWP and inactive BWP of activation is independent
It carries out, because base station will send PDCCH and PDSCH on the BWP of activation, CSI requires the period of report short, and precision is high,
And base station sends PDCCH and PDSCH not on inactive BWP, only candidate resource, therefore CSI requires the period of report can
With length, the influence to activation BWP can reduce.Separately below to inactive BWP by taking period CSI and aperiodic CSI as an example
The CSI of upper measurement and the CSI measured on the BWP of activation is described.In addition, the CSI measured on inactive BWP and
RRM can also be reported using event driven method.
Embodiment one:
The present embodiment mainly describes in aperiodic CSI report, selects the method for calculating the BWP of CSI and is based on institute
The method that the BWP of selection calculates CSI.
Method one:
The aperiodic CSI according to channel and disturbed condition calculating in a BWP is only included in primary aperiodic CSI report
Report.For example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4, wherein primary is aperiodic
CSI report be according in BWP-2 channel and disturbed condition calculate.Based on method one, in UE configured with multiple downlink BWP's
In the case of, every time aperiodic CSI report calculate institute according to BWP selection mode have it is following several.
Mode one:
Aperiodic CSI report calculate institute according to BWP be the BWP that activates in multiple BWP of UE configuration.Aperiodic CSI report
Announcement is driven by dispatching the CSI request information in the DCI of PUSCH, and the BWP of the activation is transmission driving aperiodic report
Where DCI in time slot, it is desirable that report the BWP activated in the serving cell of aperiodic CSI report.For example, it is assumed that UE is configured with 2
Serving cell, respectively serving cell one and serving cell two, in serving cell two, UE is configured with 4 downlink BWP, respectively
BWP-1, BWP-2, BWP-3, BWP-4 drive aperiodic CSI report in time slot n, the DCI of the PUSCH of dispatch service cell one
It accuses, which wants the aperiodic CSI report of report services cell one and the aperiodic CSI of serving cell two simultaneously
Report, and be the activation BWP in serving cell two in time slot n, BWP-2, then the aperiodic CSI report of serving cell two is basis
What channel and disturbed condition in BWP-2 calculated, as shown in Figure 3.CQI is included at least in aperiodic CSI report, optionally, also
It may include RI and/or PMI, and parameter included in CSI report is all the channel and disturbed condition in BWP according to activation
It calculates.The BWP of activation is determined according to the weight situation of channel quality and frequency load, reports the CSI of the BWP of activation more
Help to provide effective support for the scheduling of resource of base station.
Mode two:
Aperiodic CSI report calculate institute according to BWP be UE selection in multiple BWP of UE configuration channel quality it is best
BWP includes at least CQI in aperiodic CSI report, can also include RI and/or PMI optionally, and the parameter in CSI report
It is all that channel and disturbed condition in the best BWP of channel quality according to UE selection calculates.For example, UE is configured under 4
Row BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4, the aperiodic CSI report are according to UE from BWP-1, BWP-2,
What channel and disturbed condition in the best BWP of the channel quality chosen in BWP-3, BWP-4 calculated.If BWP-3 is
The best BWP of the channel quality that UE chooses, then aperiodic CSI report according in BWP-3 channel and disturbed condition carry out
It calculates.Under this mode, while reporting the CSI of BWP, need to report the serial number of the best BWP of the channel quality, for example,
UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4, then 2 bit informations is needed to indicate in 4 BWP
The best BWP of the channel quality of UE selection.A kind of mapping relations act of specific information indicated value and the best BWP of channel quality
Such as shown in table 1.The CSI of the best BWP of reporting channel quality is more conducive to be that UE schedules channel quality is best for base station
Resource, to improve spectrum efficiency.
Table 1: the mapping relations of information indicated value and best BWP
| Information indicated value | The best BWP of channel quality |
| 00 | BWP-1 |
| 01 | BWP-2 |
| 10 | BWP-3 |
| 11 | BWP-4 |
Method two:
It include at least two according to channel and disturbed condition calculating at least two BWP in primary aperiodic CSI report
The aperiodic CSI report of a BWP, and the format of the aperiodic CSI report of at least two BWP may be different, for example, wherein
The CSI report of one BWP only includes CQI, the CSI report of another BWP includes CQI and/or RI and/or PMI.Based on method
Two, in the case where UE is configured at least two downlink BWP, every time aperiodic CSI report calculate institute according to BWP selecting party
Formula has following several.
Mode one:
Aperiodic CSI report includes at least two BWP according to channel and disturbed condition calculating at least two BWP
Aperiodic CSI report.One of them is the aperiodic CSI report of the BWP of activation, and other aperiodic CSI reports are matched from UE
The aperiodic CSI report of the best a part of BWP of the channel quality selected in the BWP set, is detailed below.
For the aperiodic CSI report that the BWP activated at least two BWP that are configured according to UE is calculated, aperiodic CSI report
Announcement is driven by dispatching the CSI request information in the DCI of PUSCH, and the BWP of the activation is transmission driving aperiodic report
Where DCI in time slot, it is desirable that report the BWP activated in the serving cell of aperiodic CSI report.For example, it is assumed that UE is configured with 2
Serving cell, respectively serving cell one and serving cell two, in serving cell two, UE is configured with 4 downlink BWP, respectively
BWP-1, BWP-2, BWP-3, BWP-4 drive aperiodic CSI report in time slot n, the DCI of the PUSCH of dispatch service cell one
It accuses, which wants the aperiodic CSI report of report services cell one and the aperiodic CSI of serving cell two simultaneously
Report, and be the activation BWP in serving cell two in time slot n, BWP-2, then the aperiodic CSI report of serving cell two is basis
What channel and disturbed condition in BWP-2 calculated, as shown in Figure 3.CQI is included at least in aperiodic CSI report, can also include
RI and/or PMI, and the parameter in CSI report is all that channel and disturbed condition in BWP according to activation calculates.
(N is greater than or equal to 1 to the N best for the channel quality selected from least two BWP of configuration according to UE
Positive integer, UE can be by receiving high-level signaling configuration or agreement is default obtain the value of N) the aperiodic CSI that calculates of a BWP reports
It accuses, CQI is included at least in aperiodic CSI report, can also include RI and/or PMI, and the parameter in CSI report is all basis
What channel and disturbed condition in the best N number of BWP of the channel quality of UE selection calculated.For example, UE is configured with 4 downlink BWP,
Respectively BWP-1, BWP-2, BWP-3, BWP-4, the aperiodic CSI report are according to UE from BWP-1, BWP-2, BWP-3,
What channel and disturbed condition in the best BWP of the channel quality chosen in BWP-4 calculated.If BWP-3 is UE selection
The best BWP of channel quality out, then aperiodic CSI report according in BWP-3 channel and disturbed condition calculate, for example,
Aperiodic CSI report at this time can only include CQI, which is to select a CQI from multiple BWP
Best BWP reports the BWP activated to base station, base station according to information selection.Under this mode, the same of CSI report is being reported
When, need to report the serial number of the best BWP of the channel quality simultaneously.
Mode two:
Aperiodic CSI report includes at least two BWP according to channel and disturbed condition calculating at least two BWP
Aperiodic CSI report.BWP for calculating aperiodic CSI report is combined by high-level signaling configuration and physical layer signaling instruction
Method determine.Physical layer signaling may be special BWP instruction information, or by reinterpret CSI request information come
Determine the BWP for calculating aperiodic CSI report.For example, high-level signaling is that UE is configured with 4 BWP, respectively BWP-1, BWP-
2, BWP-3, BWP-4, then, high-level signaling are configured with the set of 2 BWP, and BWP set 1 includes BWP-1 and BWP-2, BWP collection
Closing 2 includes BWP-1, BWP-2, BWP-3 and BWP-4, includes that 1 bit BWP indicates information in the DCI for driving aperiodic CSI, when
Include the aperiodic CSI report of the BWP in BWP set 1 when BWP indicates that the value of information is " 0 ", in aperiodic CSI report, works as BWP
It include the aperiodic CSI report of the BWP in BWP set 2 when indicating that the value of information is " 1 ", in aperiodic CSI report.
Alternatively, combined by reinterpreting CSI request information determine serving cell corresponding to aperiodic CSI report,
The CSI process of serving cell and be configured with multiple BWP serving cell the aperiodic CSI of report BWP.For example, working as CSI
When solicited message includes 2 bit, serving cell corresponding to aperiodic CSI report, serving cell are determined in the way of table 2
The BWP of CSI process and serving cell.
The corresponding relationship between BWP for including in table 2:CSI solicited message value and CSI report
Mode three:
Aperiodic CSI report includes at least two BWP according to channel and disturbed condition calculating at least two BWP
Aperiodic CSI report.Aperiodic CSI report is the non-of a part of BWP that the channel quality selected is best from the BWP that UE is configured
Period CSI report.Aperiodic CSI report calculate institute according to BWP be the channel quality that is selected from multiple BWP of configuration of UE most
Good N (N is greater than or equal to 1 positive integer, and UE can preset by receiving high-level signaling configuration or agreement and obtain the value of N)
A BWP, aperiodic CSI report include at least CQI, can also include RI and/or PMI, and the parameter in CSI report is all basis
What channel and disturbed condition in the best N number of BWP of the channel quality of UE selection calculated.For example, UE is configured with 4 downlink BWP,
Respectively BWP-1, BWP-2, BWP-3, BWP-4, the aperiodic CSI report are according to UE from BWP-1, BWP-2, BWP-3,
What channel and disturbed condition in the best BWP of the channel quality chosen in BWP-4 calculated, if BWP-2 and BWP-3 are
The best BWP of the channel quality that UE chooses, then aperiodic CSI report be according in BWP-2 and BWP-3 channel and interference
2 aperiodic CSI reports that situation calculates.
Embodiment two:
The present embodiment mainly describes in period CSI report, selects the method for calculating the BWP of CSI and is based on selected
The method that the BWP selected calculates CSI.
Method one:
The period CSI report that channel and disturbed condition in the BWP according to activation calculate is only included in period CSI report.
For example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4, wherein primary period CSI report is
According to the period CSI report of channel and disturbed condition calculating in BWP-2.Since in synchronization, only one BWP is activation
, so period CSI report is the period CSI report that channel in BWP according to activation and disturbed condition calculate.Period CSI
Report the configuration of only one period and time migration, that is to say, that no matter which the BWP of activation is, the week of period CSI report
Phase and time migration are constant, for example, the period of period CSI report is T, time migration t, then period CSI report is in moment t, t
Reported at the time of+T ... ..., t+NT ... ..., and different moments calculate CSI institute according to the BWP of activation may be different, example
It is such as the period CSI report that channel in the BWP-1 according to activation and disturbed condition calculate in moment t, the reported CSI of t+T,
The reported CSI of moment t+2T, t+3T is the period CSI report of the channel and disturbed condition calculating in the BWP-3 according to activation, such as
Shown in Fig. 4.Wherein, moment t report CSI report institute according to BWP be in the BWP activated in time slot where moment t-k-l
CSI-RS calculate, wherein k value is configured by high-level signaling or is preset by agreement, indicate the processing delay of CSI measurement, l is most
It is small and there are CSI-RS in the BWP activated in time slot where moment t-k-l, as shown in Figure 5.
Method two:
The more set period CSI reports of configuration report, for example, 2 sets of period CSI reports of configuration, wherein a set of period CSI report is
According in the BWP of activation channel and disturbed condition calculate；Another set of period CSI report is according in inactive BWP
Period CSI report that channel and disturbed condition calculate or another set of is according to the channel and disturbed condition meter in all BWP
It calculates.The period of this two sets of period CSI reports and time migration independently configure, for example, first set period CSI report
Period and time migration be respectively T1 and t1, the period of second set of period CSI report and time migration are respectively T2 and t2, T2
It is likely larger than T1, as shown in Figure 6.Activate the format of the CSI report of BWP and inactive BWP may also be different, for example, activation BWP
CSI report include CQI, include optionally RI and/or PMI, and the CSI report of inactive BWP includes CQI.
The channel and disturbed condition in the BWP according to activation are only included in foregoing wherein a set of period CSI report
The period CSI report of calculating, for example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4, wherein
Primary period CSI report is the period CSI report of the channel and disturbed condition calculating in the BWP-2 according to activation.Due to
Synchronization, only one BWP is activation, so period CSI report is channel and disturbed condition in BWP according to activation
The period CSI report of calculating.The configuration in period CSI report only one period and time migration, that is to say, that no matter activation
Which BWP is, the period of period CSI report and time migration are constant, for example, the period of period CSI report is T, time migration
For t, then period CSI report is reported at the time of moment t, t+T ... ..., t+NT ... ..., and calculates CSI institute root in different moments
According to the BWP of activation may be different, such as be channel in the BWP-1 according to activation in moment t, the reported CSI of t+T and do
The period CSI report for disturbing situation calculating is channel in the BWP-3 according to activation in moment t+2T, the reported CSI of t+3T and is done
The period CSI report of situation calculating is disturbed, as shown in Figure 4.Wherein, moment t report CSI report institute according to BWP be at the moment
What the CSI-RS in BWP activated in time slot where t-k-l was calculated, wherein k value is configured by high-level signaling or is preset by agreement, table
Show the processing delay of CSI measurement, l is the smallest and there are CSI-RS, such as Fig. 5 in the BWP activated in time slot where moment t-k-l
It is shown.A cycle for the CSI report of the BWP of the activation of UE report, when the BWP of activation variation, after BWP activation
CSI report will report that (self-contained CSI report described here is according to the self-contained CSI to a self-contained CSI report
Report can determine CSI, and since the period CSI report presumable moment reports RI, CQI and/or PMI is reported at the time of having, this
It is that could will determine together CSI in conjunction with the parameter of report of multiple moment, this CSI report is known as non-self-contained CSI report, i.e.,
Each CSI report moment only includes a part of CSI.And it includes all CSI composition portions that self-contained CSI, which is synchronization,
Point, such as self-contained CSI report is including at least RI and CQI, optionally includes PMI), as shown in fig. 7, the report of moment t is
The self-contained CSI report of BWP-1, what moment t+T reported is the non-self-contained CSI report of BWP-1, the report of moment t+2T
It is the self-contained CSI report of BWP-2, what moment t+3T reported is the non-self-contained CSI report of BWP-2.Or period CSI
A part of CSI report in report be it is public between BWP, a part of CSI report is BWP exclusive, such as RI is between BWP
It is public, that is, the RI of BWP-2 can be used as by the RI that channel to BWP-1 and interference measurement obtain, to obtain
The CQI of BWP-2, optionally, moreover it is possible to obtain PMI, and CQI/PMI be it is exclusive between BWP, the CQI/PMI of exactly each BWP is
It is obtained according to respective BWP.
Foregoing another set of period CSI report be according in inactive BWP channel and disturbed condition calculate
Period CSI report.The period CSI report is that a part of BWP that the channel quality selected is best from the BWP that UE is configured is calculated
Period CSI report.Period CSI report calculate institute according to BWP be that the channel quality that UE is selected from multiple BWP of configuration is best
N (N is greater than or equal to 1 positive integer, and UE can be by receiving high-level signaling configuration or agreement is default obtain the value of N) it is a
BWP, period CSI report include at least CQI, can also include RI and/or PMI, and the parameter in CSI report is selected according to UE
What channel and disturbed condition in the best N number of BWP of the channel quality selected calculated.For example, UE is configured with 4 downlink BWP, respectively
For BWP-1, BWP-2, BWP-3, BWP-4, the period CSI report is according to UE from BWP-1, BWP-2, BWP-3, BWP-4
In channel in the best BWP of the channel quality that chooses and disturbed condition calculate, if BWP-2 and BWP-3 are UE choosings
The best BWP for selecting out, then period CSI report is 2 according to channel and disturbed condition calculating in BWP-2 and BWP-3
Period CSI report.
Embodiment three:
Aperiodic CSI report institute according to CSI-RS resource can be different from the configuration of existing aperiodic CSI-RS resource,
Since the bandwidth ability of UE is limited, UE can only receive the CSI-RS in a BWP in a time slot and measure, and therefore, use
It can be the CSI-RS pattern switched according to certain format in different BWP in the aperiodic CSI-RS of aperiodic CSI report,
That is, UE can receive UE respectively and match in several different descending time slots when UE receives primary aperiodic CSI-RS driving
The CSI-RS in all BWP set.For example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3, BWP-4,
UE receives signaling (physical layer signaling (DCI) or media access (MAC) the layer letter for driving aperiodic CSI-RS in time slot n
Enable), UE receives CSI-RS on different BWP respectively by the way of the time-division in the descending time slot of subsequent several determinations, for example,
Descending time slot n+k (k is a nonnegative integer, for example, k can the value equal to 0, k configured by high-level signaling or preset by agreement) UE
CSI-RS is received on BWP-1, descending time slot n+k+1UE receives CSI-RS on BWP-2, and descending time slot n+k+2UE is in BWP-3
Upper reception CSI-RS, descending time slot n++k+3UE receive CSI-RS on BWP-4, as shown in Figure 8.
Aperiodic CSI report institute according to CSI-RS resource can be different from the configuration of existing aperiodic CSI-RS resource,
Since the bandwidth ability of UE is limited, UE can only receive the CSI-RS in a BWP in a time slot and measure, and therefore, use
It can be the CSI-RS pattern switched according to certain format in different BWP in the aperiodic CSI-RS of aperiodic CSI report,
That is, UE can receive UE respectively and match in several different descending time slots when UE receives primary aperiodic CSI-RS driving
The CSI-RS in the BWP of part specified in the BWP set.For example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2,
BWP-3, BWP-4, UE receive signaling (physical layer signaling (DCI) or the media access for driving aperiodic CSI-RS in time slot n
(MAC) layer signaling), instruction UE receives the CSI-RS in BWP-1 and BWP-3, then, descending time slot n+k UE connects on BWP-1
CSI-RS is received, descending time slot n+k+1UE receives CSI-RS on BWP-3, as shown in Figure 9.
Aperiodic CSI report institute according to CSI-RS resource be also possible to the CSI-RS resource in period, due to the bandwidth of UE
Ability is limited, and UE can only receive the CSI-RS in a BWP in a time slot and measure, therefore, if UE's is primary non-
When period CSI report will be determined according to the channel and disturbed condition of multiple BWP, then the period CSI-RS resource of UE will be when multiple
In gap, such UE could measure respectively the CSI in different BWP in different moments.Aperiodic CSI reports in time slot n, then BWP-i
CSI-RS resource in time slot n-k-mi, wherein k is determined according to the requirement of processing delay, and CSI-RS measurement and CSI are reserved
Processing time between report, miMore than or equal to 0, and n-k-miThere are CSI-RS resource in BWP-i for time slot, and in time slot n-k-
miCSI-RS resource is not present in other BWP.For example, UE is configured with 4 downlink BWP, respectively BWP-1, BWP-2, BWP-3,
BWP-4, aperiodic CSI report that the CSI-RS resource of BWP-1 is in time slot n-k-m in time slot n1, the CSI-RS resource of BWP-2 exists
Time slot n-k-m2, the CSI-RS resource of BWP-3 is in time slot n-k-m3, the CSI-RS resource of BWP-4 is in time slot n-k-m4, and n-k-
m1, n-k-m2, n-k-m3, n-k-m4It does not overlap, as shown in Figure 10.Alternatively, in multiple BWP, there are CSI- in same time slot
RS, and UE cannot receive the CSI-RS in multiple BWP in a time slot simultaneously, therefore, when in a time slot with the presence of multiple BWP
When CSI-RS, a priority is determined to receive the CSI-RS in different BWP.Such as according to BWP serial number from big to small suitable
CSI-RS in sequence preferential receipt and the nearest BWP in aperiodic CSI report interval, for example, UE is configured with 4 downlink BWP, respectively
For BWP-1, BWP-2, BWP-3, BWP-4, aperiodic CSI is reported in time slot n, in time slot n-k-m1, n-k-m2, n-k-m3, n-k-
m4Any time slot have CSI-RS, and m in BWP-1, BWP-2, BWP-3, BWP-41<m2<m3<m4, then in time slot n-k-m1It connects
The CSI-RS in BWP-4 is received, in time slot n-k-m2The CSI-RS in BWP-3 is received, in time slot n-k-m3It receives in BWP-2
CSI-RS, in time slot n-k-m4The CSI-RS in BWP-1 is received, as shown in figure 11.
Example IV:
Period CSI report institute according to CSI-RS resource determination and determining for existing period CSI-RS resource can not
Together, since the bandwidth ability of UE is limited, UE can only receive the CSI-RS in a BWP in a time slot and measure, this reality
Apply example provide following several determining period CSI report institutes according to CSI-RS resource configuration method.
Method one:
The CSI-RS in a set of period is configured, and CSI-RS is only transmitted in the BWP of activation.Such as it is configured with period CSI-RS
Period be T, time migration t, then CSI-RS moment t, t+T ..., t+NT ... transmit, exist in moment t+nT, CSI-RS
It is transmitted on the BWP of moment activation, since in synchronization, only one BWP is activation, in synchronization only one
CSI-RS is transmitted on a BWP, as shown in figure 12.
Method two:
The CSI-RS at least two sets periods is configured, and wherein a set of CSI-RS is only transmitted in the BWP of activation, remaining
CSI-RS is transmitted in the BWP or inactive BWP of activation.For example, wherein a set of CSI-RS is configured with the week of period CSI-RS
Phase is T, time migration t, then CSI-RS is transmitted in moment t, t+T ..., t+NT ..., and in moment t+nT, CSI-RS is at this
It carves and is transmitted on the BWP of activation, as shown in figure 12, which may be smaller, precise measurement channel information is used for, thus with suitable
Transformat transmit data, improve the data throughout of transmission；Other set CSI-RS is primarily adapted for use in determining UE configuration
Which is that channel quality is best in multiple BWP, so that base station activation BWP appropriate, this set CSI-RS can according to this situation
It is transmitted in the form of time-multiplexed in multiple BWP by a time window, the period of configuration and time migration are to be directed to
CSI-RS window, for example, the period assignment of CSI-RS window is T1, time migration t2, CSI-RS time window continues
Length is L, and in time t2 to t2+L ..., the time window of t2+NT1 to t2+L+NT1, UE is passed in determining multiple BWP
Defeated CSI-RS, at the t2 moment, is transmitted for example, requiring to transmit CSI-RS on 3 BWP in a time window on BWP-1
CSI-RS transmits CSI-RS at the t2+L/2 moment on BWP-2, and at the t2+L moment, CSI-RS, such as Figure 13 are transmitted on BWP-3
It is shown.
Embodiment five:
When UE can only receive down channel and signal on a BWP simultaneously, then when UE is measured on inactive BWP
When, UE cannot detect control resource collection on the BWP of activation, and (CORESET, Control Resource Set, PDCCH can be with
Transmitted in the resource that CORESET is defined) and PDSCH is received, the period that UE is measured on inactive BWP is known as gap
(gap).How the determination method and UE that gap of the UE for measuring inactive BWP is described below operate within the gap time.
Method one:
Base station by the distinctive high-level signaling of UE be allocated to a set of gap of UE (or this gap be base station to UE inactive
BWP on the occupied time slot of CSI-RS that configures or OFDM symbol), for example, gap of this configuration is the period, gap's
The time span of period and time migration and gap are configured by high-level signaling, for example, as shown in figure 14, being configured with period gap
Period be T, time migration t, time span L, then for gap in moment t, t+T ..., t+NT ... start duration L, and
The unit of T, t, L are configured by the distinctive high-level signaling of UE, or are preset by agreement, for example, UE receives the distinctive high-level signaling of UE
Configure T, the time slot that the unit of t, L are 1 millisecond.Have in overlapping time slot or when between the two in the BWP and gap of activation
Between interval be less than t ' (t ' be due to BWP switching time delay), UE detect not on the BWP of activation CORESET and reception PDSCH,
As shown in figure 15.
Method two:
Base station by the distinctive high-level signaling of UE be allocated to a set of gap of UE (or this gap be base station to UE inactive
BWP on the occupied time slot of CSI-RS that configures or OFDM symbol), for example, gap of this configuration is the period, gap's
The time span of period and time migration and gap are configured by high-level signaling, for example, as shown in figure 14, being configured with period gap
Period be T, time migration t, time span L, then for gap in moment t, t+T ..., t+NT ... start duration L, and
The unit of T, t, L are configured by the distinctive high-level signaling of UE, or are preset by agreement, for example, UE receives the distinctive high-level signaling of UE
Configure T, the time slot that the unit of t, L are 1 millisecond.CORESET in the BWP of activation and gap have it is overlapping (or therebetween
Time interval be less than t ' (t ' is the time delay due to BWP switching)), UE do not have on the BWP of activation with gap it is overlapping (or
Time interval between the two is less than t ' (t ' is the time delay due to BWP switching)) CORESET is detected on CORESET, such as Figure 16 institute
Show, otherwise, UE is unfolded with gap on the BWP of activation, and (or time interval between the two is more than or equal to t ' (t ' is
Due to the time delay of BWP switching)) CORESET is detected on CORESET, as shown in figure 17.In this way, the BWP activated compared with method one
Reception influenced by gap it is smaller.
Method three:
Base station by the distinctive high-level signaling of UE be allocated to a set of gap of UE (or this gap be base station to UE inactive
BWP on the occupied time slot of CSI-RS that configures or OFDM symbol), for example, gap of this configuration is the period, gap's
The time span of period and time migration and gap are configured by high-level signaling, for example, as shown in figure 14, being configured with period gap
Period be T, time migration t, time span L, then for gap in moment t, t+T ..., t+NT ... start duration L, and
The unit of T, t, L are configured by the distinctive high-level signaling of UE, or are preset by agreement, for example, UE receives the distinctive high-level signaling of UE
Configure T, the time slot that the unit of t, L are 1 millisecond.The PDSCH dispatched in the BWP of activation and gap have it is overlapping (or the two it
Between time interval be less than t ' (t ' be due to BWP switching time delay)), UE received not on the BWP of activation have with gap it is overlapping
The PDSCH of (or time interval between the two is less than t ' (t ' is the time delay due to BWP switching)), otherwise, UE is in activation
On BWP receive with gap it is unfolded (or time interval between the two be more than or equal to t ' (t ' be due to BWP switch when
Prolong)) PDSCH.
Method four:
Base station by the distinctive high-level signaling of UE be allocated to a set of gap of UE (or this gap be base station to UE inactive
BWP on the occupied time slot of CSI-RS that configures or OFDM symbol), for example, gap of this configuration is the period, gap's
The time span of period and time migration and gap are configured by high-level signaling, for example, as shown in figure 14, being configured with period gap
Period be T, time migration t, time span L, then for gap in moment t, t+T ..., t+NT ... start duration L, and
The unit of T, t, L are configured by the distinctive high-level signaling of UE, or are preset by agreement, for example, UE receives the distinctive high-level signaling of UE
Configure T, the time slot that the unit of t, L are 1 millisecond.If the PDSCH dispatched in the BWP of activation and gap have overlapping (or two
Time interval between person is less than t ' (t ' is the time delay due to BWP switching)), UE received on the BWP of activation have with gap it is overlapping
(or time interval between the two be less than t ' (t ' be due to BWP switching time delay)) PDSCH, without inactive
It is measured on BWP, if base station wants that UE is allowed to measure inactive BWP in gap, base station can not dispatch above-mentioned
PDSCH, if base station does not want that UE is allowed to measure inactive BWP in gap, base station can dispatch above-mentioned PDSCH, such base
There is greater flexibility at station；If do not have in the BWP of activation PDSCH and the gap of scheduling have it is overlapping (or therebetween
Time interval is less than t ' (t ' is the time delay due to BWP switching)), UE measures inactive BWP in gap.
Corresponding to the above method, present invention also provides a kind of device for reporting CSI, basic composed structure such as Figure 18 institutes
Show, comprising:
BWP selecting module, for selecting at least one BWP from least one BWP that described device is configured；
CSI computing module, for calculating CSI report according to selected BWP；
CSI reporting module, for sending CSI report to base station.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (14)
1. a kind of method of reporting channel status information CSI characterized by comprising
User equipment (UE) selects at least one BWP from the portions of bandwidth BWP of configuration；
UE calculates CSI report according to selected BWP；
UE sends CSI report to base station.
2. according to the method described in claim 1, it is characterized by:
The CSI report is aperiodic CSI report, and only includes in primary aperiodic CSI report according to the channel in a BWP
The aperiodic CSI report calculated with disturbed condition.
3. according to the method described in claim 2, it is characterized in that, the UE selects at least one BWP packet from the BWP of configuration
It includes:
UE selects the BWP of activation from the BWP of configuration；The BWP of the activation is that transmission drives the aperiodic CSI report
Where DCI in time slot, it is desirable that report the BWP activated in the serving cell of aperiodic CSI report；
Alternatively, UE selects the best BWP of a channel quality from the BWP of configuration.
4. according to the method described in claim 1, it is characterized by:
The CSI report is aperiodic CSI report, and includes according to the letter at least two BWP in primary aperiodic CSI report
At least two aperiodic CSI reports that road and disturbed condition calculate.
5. according to the method described in claim 4, it is characterized in that, the UE selects at least one BWP packet from the BWP of configuration
Include following one:
UE selects the BWP of activation from the BWP of configuration, and selects at least one channel quality best from the BWP of configuration
BWP；The BWP of the activation is in time slot where transmission drives the DCI of the aperiodic CSI report, it is desirable that reports aperiodic CSI
The BWP activated in the serving cell of report；
UE selects at least two BWP according to the configuration of high-level signaling and the instruction of physical layer signaling from the BWP of configuration；
The BWP that UE selects at least two channel qualities best from the BWP of configuration.
6. according to the method described in claim 1, it is characterized by:
The CSI report is period CSI report, and only reports configured with a set of period CSI report, in a period CSI report
Only include the period CSI report that channel and disturbed condition in the BWP according to activation calculate；
The UE includes: the BWP that UE selects activation from the BWP of configuration from least one BWP is selected in the BWP of configuration.
7. according to the method described in claim 1, it is characterized by:
The CSI report is period CSI report, and reports configured at least two sets of period CSI reports, wherein a set of period CSI
Report is that the channel and disturbed condition in the BWP activated in the BWP according to configuration calculate, remaining period CSI report is root
According in the BWP of configuration at least one inactive BWP channel and disturbed condition calculate either according in all BWP
What channel and disturbed condition calculated.
8. method according to any one of claims 2 to 5, it is characterised in that:
This method further include: UE determine the aperiodic CSI report institute according to channel state information reference signals CSI-RS provide
Source, and receive corresponding CSI-RS.
9. according to the method described in claim 8, it is characterized in that, it includes following one that UE, which receives corresponding CSI-RS:
When UE receives aperiodic CSI-RS driving, UE is received in all BWP that UE is configured respectively in different descending time slots
The CSI-RS in the BWP of part specified in CSI-RS or respectively all BWP of reception UE configuration；
The CSI-RS resource of UE reception period CSI report；
UE is according to the CSI-RS in the sequence preferential receipt and the nearest BWP in aperiodic CSI report interval of the BWP serial number of setting.
10. according to the method described in claim 6, it is characterized by:
This method further include: UE determine a set of period CSI report institute according to CSI-RS resource, and receive corresponding CSI-
RS。
11. according to the method described in claim 10, it is characterized in that, the corresponding CSI-RS of UE reception includes:
According to the configuration of a set of period CSI report, the corresponding time slot of the BWP activated in the BWP of configuration receives CSI-RS.
12. according to the method described in claim 7, it is characterized by:
This method further include: UE determine it is described at least two sets the period CSI report institute according to CSI-RS resource, and receive corresponding
CSI-RS。
13. according to the method for claim 12, which is characterized in that UE receives corresponding CSI-RS and includes:
According to the configuration of two sets of period CSI reports, the corresponding time slot of the BWP activated in the BWP of configuration receives a set of
CSI-RS, and the BWP or the corresponding time slot of inactive BWP that activate in the BWP of configuration receive remaining CSI-RS.
14. a kind of device for reporting CSI characterized by comprising
BWP selecting module, for selecting at least one BWP from least one BWP that described device is configured；
CSI computing module, for calculating CSI report according to selected BWP；
CSI reporting module, for sending CSI report to base station.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22185734.5A EP4096141A1 (en) | 2017-04-17 | 2018-04-17 | Method and device for uplink power control |
| EP18787590.1A EP3596984B1 (en) | 2017-04-17 | 2018-04-17 | Method and device for uplink power control |
| PCT/KR2018/004461 WO2018194352A1 (en) | 2017-04-17 | 2018-04-17 | Method and device for uplink power control |
| EP22209784.2A EP4181450A1 (en) | 2017-04-17 | 2018-04-17 | Method and device for dynamic resource allocation |
| US16/605,707 US10887842B2 (en) | 2017-04-17 | 2018-04-17 | Method and device for uplink power control |
| KR1020217002805A KR102383385B1 (en) | 2017-04-17 | 2018-04-17 | Method and device for uplink power control |
| KR1020197030309A KR102210990B1 (en) | 2017-04-17 | 2018-04-17 | Method and apparatus for uplink power control |
| US17/140,591 US11864122B2 (en) | 2017-04-17 | 2021-01-04 | Method and device for uplink power control |
| US17/988,348 US12010629B2 (en) | 2017-04-17 | 2022-11-16 | Method and device for uplink power control |
| US18/737,386 US20240334342A1 (en) | 2017-04-17 | 2024-06-07 | Method and device for uplink power control |
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