WO2019096172A1 - Procédé et dispositif permettant d'indiquer une mesure de canal - Google Patents

Procédé et dispositif permettant d'indiquer une mesure de canal Download PDF

Info

Publication number
WO2019096172A1
WO2019096172A1 PCT/CN2018/115478 CN2018115478W WO2019096172A1 WO 2019096172 A1 WO2019096172 A1 WO 2019096172A1 CN 2018115478 W CN2018115478 W CN 2018115478W WO 2019096172 A1 WO2019096172 A1 WO 2019096172A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
resource
configuration
signaling
report
Prior art date
Application number
PCT/CN2018/115478
Other languages
English (en)
Chinese (zh)
Inventor
刘显达
刘鹍鹏
李雪茹
吕永霞
宋兴华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019096172A1 publication Critical patent/WO2019096172A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating channel measurements.
  • the new radio (NR) of the fifth-generation mobile communication technology supports at least two main service scenarios, namely, Ultra-Reliable Low Latency Communications (URLLC). And enhanced mobile broadband (eMBB).
  • URLLC Ultra-Reliable Low Latency Communications
  • eMBB enhanced mobile broadband
  • the transmission bearers of the eMBB users and the time-frequency resources occupied by the transmission bearers of the URLLC users can be shared. Resource sharing is dynamic, and URLLC users occupy time-frequency resources by means of pre-emption and without pre-emption.
  • the Pre-emption mode supports the transmission of the URLLC user in the time-frequency resource allocated for the eMBB user transmission. At this time, the time-frequency resource preempted by the URLLC will be punctured for the eMBB user to transmit data or reference signals.
  • the eMBB user For a time-frequency resource composed of a certain frequency band and a certain slot, in the slot, since the scheduling of the URLLC user is usually burst, the eMBB user does not know that some of the data or the reference signal has been hit. hole. As shown in FIG. 1 , although the data of the URLLC user preempts the time-frequency resources that are partially scheduled for the eMBB user, the eMBB user performs data demodulation and reference signals according to all the time-frequency resources that are scheduled to be included, including the preempted time-frequency resources. measuring.
  • a preemption indication is supported in the DCI (Pre-emption Indication)
  • the (PI) field indicates the location of the PDSCH time-frequency resource that the eMBB user has punched in the previous slot and refreshes the data soft buffer on the indicated time-frequency resource location.
  • Figure 2 is a schematic diagram of the acquisition of the PI signaling. When the UE performs data scheduling in a certain slot, the UE blindly detects the PI signaling corresponding to the data scheduling in the subsequent slot of the slot, and obtains the need to refresh the slot. The information of the data, when the UE performs demodulation and decoding of the affected TB, skips the data transmitted on the affected time-frequency resources.
  • the UE When the CSI-RS resource of the UE is punctured by the data of the URLLC user in a pre-emption manner, if the CSI-RS resource multiplexes the resource carrying the data, the UE may be based on the indication of the PI based on the unpunctured The CSI-RS resource performs channel measurement and reporting. At the same time, since the PI is indicated based on the data scheduling situation, when there is no data scheduling but there is CSI-RS transmission, the UE cannot determine whether the CSI-RS resource is the PDSCH/PDCCH of the URLLC user. Punch.
  • the UE performs CSI measurement and reporting based on the configuration of the CSI and the CSI-RS resource. Since the part of the bandwidth of the CSI-RS resource is punctured, the UE obtains the wideband CSI and the corresponding partial sub-band CSI obtained based on the CSI-RS resource measurement, and the base station needs to ignore the partial CSI information reported by the UE according to its own algorithm.
  • the PI field is used for the case where the PDSCH of the eMBB user is punctured, and the case where the CSI-RS resource is punctured cannot be completely determined based on the indication of the PI.
  • the indication and detection of the PI field are only performed when the UE performs data scheduling, and the transmission of the CSI-RS and the transmission of the data are not necessarily performed simultaneously.
  • the PI field is a resource location for notifying the user that the data is punctured.
  • the data of the UE on a certain OFDM symbol is not punctured by the URLLC data sent on the OFDM symbol
  • the CSI is sent on the symbol.
  • the indication of the bit corresponding to the bitmap in the PI is still '0', and the UE cannot determine whether the CSI-RS resource is punctured by the indication of the PI. That is to say, according to the PI field, the UE cannot determine whether the CSI measured based on the CSI-RS resource is valid.
  • each CSI report configuration includes a Measurement Restriction (MR) parameter for indicating the CSI-RS measurement behavior of the UE.
  • MR Measurement Restriction
  • the MR configuration is 'ON', the UE The CSI-RS resource in the last slot is used to measure and report the CSI.
  • the MR is configured to be 'OFF', the UE performs channel measurement smoothing based on the CSI-RS resource in multiple slots and reports the corresponding CSI.
  • the UE cannot obtain information that the CSI-RS resource is punctured by the URLLC data in a pre-emption manner, since at least part of the measurement result obtained based on the punctured CSI-RS resource measurement is invalid. If the CSI measurement and reporting by the UE adopts the moving average method, an invalid CSI measurement result is invalid for the subsequent CSI measurement result.
  • the base station cannot perform efficient data scheduling based on invalid CSI reporting information.
  • the embodiment of the present application provides a method and a device for indicating a channel measurement, which are used to solve the problem that a CSI measurement result obtained based on a punctured CSI-RS resource affects subsequent CSI measurement and reporting.
  • an embodiment of the present application provides a method for indicating a channel measurement, including:
  • the user equipment UE receives the configuration of the first channel state information reference signal CSI-RS resource notified by the network device, the configuration of the first channel state information CSI report, and the configuration of the first CSI-RS resource and the first CSI report Obtaining a first CSI according to the configuration of the first CSI-RS resource and the configuration of the first CSI report associated with the first CSI-RS resource; receiving the first signaling sent by the network device, The first signaling includes at least one field value, where the at least one field value is used to indicate that the UE refreshes the buffer of the first CSI.
  • the UE can clear the CSI buffer affected by the specific punctured CSI-RS resource according to the dynamic indication of the first signaling, and improve the accuracy of CSI measurement and reporting.
  • the UE further receives a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report.
  • the UE clears the CSI buffer affected by the specific punctured CSI-RS resource by the first signaling dynamic indication, and improves the accuracy of CSI measurement and reporting.
  • the first signaling and CSI report triggering The field is jointly encoded, so that the CSI report triggering field is not only used to indicate the triggering of the aperiodic CSI reporting, but also to indicate the refresh of the CSI measurement buffer based on the punctured aperiodic/periodic CSI-RS resource, thereby saving signaling overhead.
  • the UE further receives a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report.
  • the UE dynamically indicates to clear the CSI buffer affected by the specific punctured CSI-RS resource by using the first signaling, and improves the accuracy of the CSI measurement.
  • the first signaling and the CSI measurement request field are jointly encoded.
  • the CSI measurement request is used not only to indicate the triggering of the aperiodic CSI-RS resource, but also to indicate the refresh of the CSI measurement buffer based on the punctured aperiodic/periodic CSI-RS resource.
  • the UE further receives a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report. Correlation relationship; obtaining a second CSI according to the indication of the first signaling, reporting the second CSI, and refreshing a buffer of the first CSI; the at least one field value included in the first signaling
  • the method is further configured to trigger the second CSI-RS resource and trigger the UE to report the second CSI.
  • the UE dynamically indicates the CSI buffer affected by the specific punctured CSI-RS resource by using the first signaling, thereby improving the accuracy of the CSI measurement.
  • the first signaling and the CSI report triggering field CSI
  • the measurement request field is jointly encoded, so that the jointly coded CSI request field is not only used to indicate the trigger of the aperiodic CSI reporting, but also indicates the triggering of the aperiodic CSI-RS resource, and is also used to indicate the aperiodic/periodic CSI based on the punctured.
  • the refresh of the CSI of the RS resource measures the cache.
  • the UE refreshes the cache of the first CSI according to the indication of the first signaling, and refreshes a cache of the first data; wherein the time domain resource occupied by the first data is At least one OFDM symbol included in a previous slot of the slot slot in which the first signaling is located.
  • the UE dynamically indicates to clear the CSI buffer affected by the specific punctured CSI-RS resource by using the first signaling, thereby improving the accuracy of the CSI measurement.
  • the first signaling and the PI joint coding make the first A signaling simultaneously indicates refreshing of data based on the punctured aperiodic/periodic CSI-RS resource and refreshing of the CSI measurement buffer based on the punctured aperiodic/periodic CSI-RS resource.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is greater than or equal to 1 Positive integer.
  • a first CSI effective time window is predefined for the first signaling, and the first signaling is only used to refresh the CSI cache associated with the P/SP CSI-RS resource located in the effective time window.
  • the method further includes: the UE further receiving a configuration of a third CSI-RS resource notified by the network device, and configuring the third CSI-RS resource and the first CSI report Correlating a third CSI-RS on the third CSI-RS resource; obtaining the first CSI based on the third CSI-RS; the at least one field value included in the first signaling The method is further configured to indicate that the third CSI-RS resource is triggered.
  • the first signaling is also used to trigger a CSI-RS transmission to update the CSI measurement buffer of the punctured aperiodic/periodic CSI-RS resource.
  • the first signaling is further used to indicate that the UE feeds back the response of the first signaling; and the first signaling is further sent according to the first signaling.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • the embodiment of the present application provides a channel measurement indication method, including: a network device allocates a first channel state information reference signal CSI-RS resource to a UE; and notifies the UE of the first channel state information reference signal CSI a configuration of the RS resource, a configuration of the first channel state information CSI report, and an association relationship between the first CSI-RS resource and a configuration of the first CSI report; sending the first signaling to the UE,
  • the first signaling includes at least one field value, where the field value is used to indicate that the UE refreshes a buffer of the first CSI, where the first CSI is configured and associated by the UE according to the first CSI-RS resource.
  • the configuration of the first CSI report associated with the first CSI-RS resource is obtained.
  • the network device notifies the UE of the configuration of the second CSI-RS resource, the configuration of the second CSI report, and the association between the second CSI-RS resource and the configuration of the second CSI report.
  • the at least one field value included in the first signaling is further used to indicate that the UE reports a second CSI, where the second CSI is configured by the UE according to the second CSI-RS resource.
  • a configuration of a second CSI report associated with the second CSI-RS resource is obtained.
  • the network device notifies the UE of the configuration of the second CSI-RS resource, the configuration of the second CSI report, and the association between the second CSI-RS resource and the configuration of the second CSI report.
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource.
  • the network device notifies the UE of the configuration of the second CSI-RS resource, the configuration of the second CSI report, and the association between the second CSI-RS resource and the configuration of the second CSI report.
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource and trigger the UE to report the second CSI, where the second CSI is the UE Obtained according to a configuration of the second CSI-RS resource and a configuration of a second CSI report associated with the second CSI-RS resource.
  • the at least one field value included in the first signaling is further used to indicate a buffer for refreshing the first data, where the time domain resource occupied by the first data is the first At least one OFDM symbol included in a previous slot of the slot slot in which the signaling is located.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is greater than or equal to 1 Positive integer.
  • the method further includes: the network device notifying the configuration of the third CSI-RS resource of the UE, and the association relationship between the third CSI-RS resource and the configuration of the first CSI report; Transmitting a third CSI-RS on the third CSI-RS resource; the field value included in the first signaling is further used to indicate that the third CSI-RS resource is triggered.
  • the first signaling is further used to trigger a response of the first signaling; and the network device receives a response of the first signaling.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • the embodiment of the present application provides a channel measurement indication device, including:
  • a transceiver unit configured to receive, by a network device, a configuration of a first channel state information reference signal CSI-RS resource, a configuration of a first channel state information CSI report, and the first CSI-RS resource and the first CSI report
  • a processing unit configured to obtain a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource; the transceiver unit, The method is further configured to receive the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to instruct the processing unit to refresh the buffer of the first CSI.
  • the transceiver unit is further configured to receive a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a second CSI-RS resource and a second An association relationship of the configuration of the CSI report; the processing unit is further configured to obtain a second CSI according to the configuration of the second CSI-RS resource and the configuration of the second CSI report associated with the second CSI-RS resource; The transceiver unit is further configured to: report the second CSI according to the indication of the first signaling; the processing unit is further configured to: refresh a buffer of the first CSI; The at least one field value is further used to indicate that the transceiver unit reports the second CSI.
  • the transceiver unit is further configured to receive a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a second CSI-RS resource and a second An association relationship of the configuration of the CSI report; the processing unit is further configured to obtain a second CSI according to the configuration of the second CSI-RS resource and the configuration of the second CSI report associated with the second CSI-RS resource; Obtaining a second CSI according to the indication of the first signaling, and refreshing a buffer of the first CSI; the at least one field value included in the first signaling is further used to trigger the second CSI-RS Resources.
  • the transceiver unit is further configured to receive a configuration of a second CSI-RS resource notified by the network device, a configuration of a second CSI report, and a second CSI-RS resource and a second Corresponding relationship of the configuration of the CSI report; the processing unit is further configured to: obtain a second CSI according to the indication of the first signaling, report the second CSI, and refresh a cache of the first CSI; The at least one field value included in a signaling is further used to trigger the second CSI-RS resource and trigger the transceiver unit to report the second CSI.
  • the processing unit is further configured to: refresh the cache of the first CSI according to the indication of the first signaling, and refresh a cache of the first data; wherein the first data occupies
  • the time domain resource is at least one OFDM symbol included in a previous slot of the slot slot in which the first signaling is located.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is greater than or equal to 1 Positive integer.
  • the transceiver unit is further configured to: receive a configuration of a third CSI-RS resource that is notified by the network device, and associate an association between the third CSI-RS resource and a configuration of the first CSI report.
  • the at least one field value is further used to indicate that the third CSI-RS resource is triggered.
  • the first signaling is further used to indicate that the device feeds back a response of the first signaling; the transceiver unit is further configured to send the first according to the first signaling Signaling response.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • the embodiment of the present application provides a channel measurement indication device, including:
  • a processing unit configured to allocate, by the user equipment UE, a first channel state information reference signal CSI-RS resource, and a transceiver unit, configured to notify the UE of the configuration of the first channel state information reference signal CSI-RS resource, where a configuration of a channel state information CSI report, and a relationship between the first CSI-RS resource and a configuration of the first CSI report;
  • the transceiver unit is further configured to send the first signaling to the UE, where the At least one field value is included in a signaling, where the field value is used to indicate that the UE refreshes a buffer of a first CSI, where the first CSI is a configuration and a location of the UE according to the first CSI-RS resource.
  • the configuration of the first CSI report associated with the first CSI-RS resource is obtained.
  • the transceiver unit is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report.
  • the associated relationship of the configuration, the at least one field value included in the first signaling is further used to indicate that the UE reports a second CSI, and the second CSI is that the UE is according to the second CSI-RS.
  • the configuration of the resource and the configuration of the second CSI report associated with the second CSI-RS resource are obtained.
  • the transceiver unit is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report.
  • the associated relationship of the configuration; the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource.
  • the transceiver unit is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report.
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource and trigger the UE to report the second CSI, the second CSI And obtaining, by the UE, according to a configuration of the second CSI-RS resource and a configuration of a second CSI report associated with the second CSI-RS resource.
  • the at least one field value included in the first signaling is further used to indicate a buffer for refreshing the first data, where the time domain resource occupied by the first data is the first At least one OFDM symbol included in a previous slot of the slot slot in which the signaling is located.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is greater than or equal to 1 Positive integer.
  • the transceiver unit further uses: notifying a configuration of a third CSI-RS resource of the UE, and a relationship between the third CSI-RS resource and a configuration of the first CSI report;
  • the third CSI-RS is sent on the third CSI-RS resource;
  • the field value included in the first signaling is further used to indicate that the third CSI-RS resource is triggered.
  • the first signaling is further used to trigger a response of the first signaling; the transceiver unit further receives a response of the first signaling.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • an embodiment of the present application provides a user equipment, including a transceiver, a processor, a memory, a transceiver, configured to send and receive information, a memory for storing a program, an instruction, or a code, where the processor is configured to execute a program in the memory, An instruction or code to perform the method of any of the above first aspects or any of the possible implementations of the first aspect.
  • an embodiment of the present application provides a network device, including a transceiver, a processor, a memory, a transceiver, configured to send and receive information, a memory for storing a program, an instruction, or a code, where the processor is configured to execute a program in the memory, An instruction or code to perform the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the embodiment of the present application provides a communication system, where the system includes the device of the foregoing aspect or the user equipment of the foregoing fifth aspect, the device of the foregoing fourth aspect, or the network device of the foregoing sixth aspect.
  • an embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, cause the computer to perform any of the foregoing first aspect or the first aspect The method of design.
  • the embodiment of the present application further provides a computer program product comprising instructions, when executed on a computer, causing the computer to perform the method of any of the above aspects or the first aspect of the first aspect.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions, when executed on a computer, causing the computer to perform any of the foregoing second aspect or the second aspect. Possible design approach.
  • the embodiment of the present application further provides a computer program product comprising instructions, when executed on a computer, causing the computer to perform the method of any of the above aspects or the second aspect of the second aspect.
  • FIG. 1 is a schematic diagram of resource multiplexing of a URLLC user and an eMBB user
  • FIG. 2 is a schematic diagram of obtaining PI signaling
  • FIG. 3 is a flowchart of a method for indicating channel measurement in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a mechanism for refreshing a CSI cache in an embodiment of the present application
  • FIG. 5 is a schematic diagram of a working mechanism of a CSI reporting trigger field jointly encoded in the embodiment of the present application;
  • FIG. 6 is a schematic diagram of a working mechanism of a CSI measurement request field jointly encoded in the embodiment of the present application;
  • FIG. 7 is a schematic diagram of a response working mechanism of the first signaling jointly coded in the embodiment of the present application.
  • FIG. 8 is a structural diagram of a pointing device for channel measurement according to an embodiment of the present application.
  • FIG. 9 is a structural diagram of a user equipment provided in an embodiment of the present application.
  • FIG. 10 is a structural diagram of a pointing device for channel measurement according to an embodiment of the present application.
  • FIG. 11 is a structural diagram of an apparatus of a network device provided in an embodiment of the present application.
  • a granularity for characterizing a system time domain resource size is a slot, and for a slot based frame structure, each slot includes 14 OFDM symbols; for a non-slot based frame For a non-slot based frame structure, each slot may include 2/4/7 OFDM symbols.
  • the granularity that characterizes the frequency domain resource size of the system is defined as a Resource Block (RB). At least in some configurations, one RB contains 12 subcarriers in the frequency domain, and each subband has a bandwidth of 15 kHz.
  • Another commonly used characterization system has a granularity of time-frequency resource size (Resource Element, RE), and each RE includes one sub-carrier in the frequency domain and one OFDM symbol in the time domain.
  • RE time-frequency resource size
  • a granularity of the frequency domain resource size of the system is a part bandwidth (BWP)
  • BWP part bandwidth
  • the base station configures one or more BWPs for the UEs in the serving cell, and each BWP configuration includes a subcarrier interval (subcarrier).
  • PRBs physical resource blocks
  • CSI-RS Channel State Information RS
  • the NR supports the base station to send CSI-RSs to the UE, and each CSI-RS is carried on a specific time-frequency resource, that is, a CSI-RS resource.
  • the UE determines the time-frequency resource carrying the CSI-RS according to the high layer signaling sent by the base station.
  • the high layer signaling indicating the configuration of the CSI-RS resource includes a CSI-RS resource identification number (CSI-RS resource ID), a CSI-RS resource mapping (CSI-RS resource mapping), and a CSI-RS resource type (CSI-RS resource type). ), CSI-RS time configuration, CSI-RS frequency band, CSI-RS density, etc.
  • the CSI-RS resource mapping includes a CSI-RS antenna port, and an RE location occupied by the CSI-RS resource corresponding to the port in one RB.
  • the CSI-RS resource types include periodic CSI-RS (Periodic CSI-RS, P CSI-RS), semi-persistent CSI-RS (Semi-persistent CSI-RS, SP CSI-RS), and aperiodic CSI-RS ( Aperiodic CSI-RS, AP CSI-RS).
  • the configuration parameters of the CSI-RS resource include a CSI-RS timing configuration for indicating the period and offset of the CSI-RS transmission, that is, the parameter indicates The slot location information occupied by the CSI-RS resource, the base station will send a CSI-RS based on the configuration parameter, and the UE will also receive and measure the corresponding CSI-RS based on the configuration parameter.
  • the difference between the P CSI-RS and the SP CSI-RS is that, for the P CSI-RS, before the base station reconfigures the CSI-RS resource through RRC signaling, the slot position occupied by the CSI-RS resource is fixed, for example, When the period of the CSI-RS is configured to be 5 ms, the CSI-RS will be continuously transmitted in a period of 5 ms; for the SP CSI-RS, the base station may pass before the base station reconfigures the CSI-RS resource through RRC signaling.
  • the Medium Access Control (MAC) Control Element (CE) indicates the activation/deactivation of the CSI-RS resource. For example, when the CSI-RS is configured for 5 ms, it is not received.
  • the CSI-RS When the corresponding MAC CE is received, the CSI-RS will be continuously sent in a period of 5 ms. When the corresponding MAC CE is received, the CSI-RS resource can be deactivated, and the CSI-RS will not be sent until The corresponding MAC CE is received to activate the CSI-RS resource.
  • the configuration parameters of the CSI-RS resource do not include the CSI-RS timing configuration, that is, the slot location where the CSI-RS resource is located is not notified in the high layer signaling.
  • the base station indicates whether the CSI-RS is transmitted by using a CSI measurement request field in the DCI signaling.
  • the CSI measurement request field includes a state for indicating that no CSI-RS resource is triggered, and further includes at least one state for indicating triggering of at least one CSI-RS resource, and the base station notifies at least one corresponding to each state by using RRC signaling.
  • An identifier (ID) of the CSI-RS resource when the base station indicates one of the states, the CSI-RS resource corresponding to the CSI-RS resource ID corresponding to the state is triggered.
  • the slot in which the CSI-RS is transmitted is the same as the slot in which the DCI signaling indicating that the CSI-RS resource is triggered is located.
  • the NR supports UE measurement and reports CSI.
  • the UE obtains the corresponding CSI by receiving and measuring the CSI-RS.
  • the CSI includes a Transmission Rank Indicator (TRI), a Transmission Precoding Matrix Indicators (TPMI), and a Channel Quality Indicator (CQI).
  • TRI Transmission Rank Indicator
  • TPMI Transmission Precoding Matrix Indicators
  • CQI Channel Quality Indicator
  • the function of the CSI reporting is that the UE provides the base station with a layer, a precoding matrix, a modulation and coding scheme (MCS) used for transmitting data.
  • MCS modulation and coding scheme
  • the RI is used to indicate a layer used to transmit data
  • the TPMI is used to indicate a precoding matrix used for transmitting data to support a base station to adopt a space division multiplexing transmission mode
  • the CQI is used to indicate channel quality status information.
  • the reporting method of TPMI can be divided into broadband TPMI reporting and sub-band TPMI reporting.
  • the UE reports the TPMI applicable to the entire system bandwidth.
  • the UE reports multiple TPMIs, and each TPMI is applicable to different sub-bands.
  • the sub-band is used to divide the CSI reporting bandwidth uniformly according to a frequency domain granularity configured by the base station, and each sub-band obtained by the dividing is a sub-band, and the CSI reporting bandwidth is an activated BWP or is associated with the CSI. Report the frequency band occupied by the associated CSI-RS resource.
  • the CSI report configuration may be configured for the UE by using the high-level signaling, and the CSI report configuration ID (CSI report configuration ID) is included in each CSI report configuration, and the specific content included in the CSI report (such as TRI, TPMI, CQI), Measurement Restriction (MR), CSI reporting type, etc.
  • CSI report configuration ID is included in each CSI report configuration
  • specific content included in the CSI report such as TRI, TPMI, CQI), Measurement Restriction (MR), CSI reporting type, etc.
  • CSI reporting in the NR There are three types of CSI reporting in the NR: periodic CSI (Periodic CSI) reporting, semi-persistent CSI reporting, and non-periodic CSI reporting.
  • the CSI report configuration includes a timing configuration parameter of the CSI report, which is used to indicate the period and offset of the CSI report, that is, the parameter indicates the slot location information occupied by the CSI report, and the UE will be based on the
  • the configuration parameter reports the CSI in the corresponding slot, and the base station also allocates a physical uplink control channel (PUCCH) resource or a physical uplink shared channel (PUSCH) resource to the UE based on the configuration parameter.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the difference between the P CSI and the SP CSI is that, for the P CSI, before the base station reconfigures the CSI report configuration by using the RRC signaling, the slot position of the CSI report is fixed, for example, when the period reported by the CSI is 5 ms. The CSI will be continuously reported in the period of 5 ms.
  • the base station may indicate the activation/deactivation of the CSI report by the MAC CE before the base station reconfigures the CSI report configuration through the RRC signaling, for example, when the CSI reports
  • the period is configured to be 5 ms
  • the CSI information is continuously reported in the period of 5 ms when the corresponding MAC CE is not received.
  • the CSI report can be deactivated. It is not reported until the corresponding MAC CE is received to report the CSI to be activated.
  • the CSI report configuration does not include the timing configuration of the CSI report, that is, the slot location where the CSI report is not notified in the high layer signaling.
  • the base station indicates whether the CSI information is reported by using a CSI report triggering field in the DCI signaling.
  • the CSI report triggering field includes a state for indicating that the CSI report is not triggered, and at least one state is used to indicate that at least one CSI report is triggered, and the base station notifies, by using RRC signaling, that each state corresponds to at least one CSI report configuration ID, when the base station
  • the CSI report corresponding to the at least one CSI report configuration ID corresponding to the state is triggered.
  • the slot in which the triggered CSI is reported is the Yth slot after the slot in which the DCI signaling reported by the CSI is triggered, where the Y value is a fixed value or a value notified by the base station through signaling.
  • Each CSI report configuration is associated with at least one CSI-RS resource, and the base station notifies the association relationship through RRC signaling, that is, the base station associates at least one CSI-RS resource ID for each CSI report configuration ID through RRC signaling.
  • the base station and the UE assume that the measurement result reported by the CSI is obtained based on the CSI-RS resource measurement associated with the CSI report.
  • the CSI report triggering field and the CSI measurement request field are jointly coded in both LTE and NR.
  • the jointly coded field is referred to as a CSI request field in this application.
  • the CSI request field is used to indicate triggering of the at least one CSI report and select at least one CSI-RS resource trigger from at least one CSI-RS resource associated with the CSI report.
  • Table 1 is an example of a CSI request field.
  • the indication information corresponding to each state in the field is configured by high layer signaling to indicate a set of at least one CSI report configuration ID and a CSI-RS resource ID, and the CSI is triggered.
  • the RS and the CSI in the collection are reported.
  • the UE When the CSI-RS resource of the eMBB user is punctured by the pre-emption of the PDSCH/PDCCH of the URLLC user, the UE cannot obtain the CSI-RS resource by the URL of the URLLC user in a pre-emption manner based on the existing technology.
  • the information of the hole because at least part of the measurement result obtained based on the measurement of the punctured CSI-RS resource is invalid, because the CSI measurement and reporting by the UE adopts a moving average method, an invalid CSI measurement result is caused to follow The CSI measurement result is invalid.
  • the base station cannot perform efficient data scheduling based on the invalid CSI report information.
  • the embodiment of the present application provides a method and an apparatus for indicating channel measurement, which avoids the problem that the CSI measurement result obtained based on the punctured CSI-RS resource affects subsequent CSI measurement and reporting.
  • the method for indicating the channel measurement according to the embodiment of the present application is applicable to a Long Term Evolution (LTE) system, or a 5 g system.
  • the channel measurement indication method in the embodiment of the present application is also applicable to other wireless communication systems.
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Multiple Access
  • new network systems etc. .
  • the network device in the embodiment of the present application may be used to convert the received air frame and the Internet Protocol (IP) packet into a router between the user equipment and the rest of the access network, where the access network
  • IP Internet Protocol
  • the remaining part may include an IP network; in addition, the network device in the embodiment of the present application may also coordinate attribute management of the air interface.
  • the network device in the embodiment of the present application may be a Global System for Mobile Communication (GSM) or a Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA). It may be a base station (NodeB) in Wideband Code Division Multiple Access (WCDMA), an evolved base station (eNB or e-NodeB) in LTE, or a 5g system.
  • the base station, or the central unit or the data unit in the 5g system is not limited in the embodiment of the present application.
  • the user equipment in this embodiment of the present application may also be referred to as a terminal device, and may be a device for providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing connected to a wireless modem. device.
  • the user equipment may also be a wireless terminal device, wherein the wireless terminal device may communicate with one or more core networks via a Radio Access Network (RAN), and the wireless terminal device may be a mobile terminal device, such as a mobile phone. (or "cellular" phone), or a computer with a mobile terminal device, for example, a computer with a mobile terminal device can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device with wireless access Network exchange language and / or data.
  • RAN Radio Access Network
  • the wireless terminal device can also be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal number. Assistant (Personal Digital Assistant, PDA) and other devices.
  • the wireless terminal device may also be referred to as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point. , Remote Terminal, Access Terminal, User Terminal, User Agent, User Equipment (UE), etc.
  • FIG. 3 is a schematic flowchart diagram of a method for indicating channel measurement provided by an embodiment of the present application.
  • the process may be specifically implemented by hardware, software programming, or a combination of hardware and software.
  • Step 30 The network device notifies the UE of the configuration of the first CSI-RS resource, the configuration of the first CSI report, and the association relationship between the first CSI-RS resource and the configuration of the first CSI report.
  • Step 31 The UE obtains a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource.
  • the UE determines the first CSI-RS resource according to the configuration of the first CSI-RS resource, receives the first CSI-RS on the first CSI-RS resource, and performs channel measurement according to the first CSI-RS. And performing CSI calculation to obtain the first CSI according to the configuration of the first CSI report associated with the first CSI-RS resource.
  • Step 32 The UE receives the first signaling sent by the network device, where the first signaling includes at least one field value, where the field value is used to indicate that the UE refreshes the buffer of the first CSI.
  • Table 2 is an example of the first signaling, where the field value '1' indicates the cache in which the UE refreshes the first CSI.
  • the field value indicates that the first CSI refreshed by the UE is obtained according to the first CSI-RS resource, where the first CSI-RS resource is located in the OFDM where the first signaling is located.
  • the buffer of the first CSI is refreshed when any one of the first OFDM symbols of the symbol is used, and is configured to configure an effective time window for the first signaling that carries the refreshed first CSI buffer, where N is greater than or equal to 1.
  • N is greater than or equal to 1.
  • the first signaling is only used to flush the cache of CSI associated with the P/SP CSI-RS resource located within the effective time window.
  • a first CSI effective time window is predefined for the first signaling, and the time domain size of the effective time window is N OFDM symbol numbers, or the network device configures the RRC signaling.
  • the time-domain size of the effective time window of the signaling is N OFDM symbols, and the termination time of the effective time window defaults to the OFDM symbol in which the first signaling is located, if any of the P/SP CSI-RS resources Within the effective time window, it is implicitly indicated that all P/SP CSI-RS resources within the effective time window are punctured.
  • the buffer of the CSI measurement result affected by all the P/SP CSI-RS resources will be refreshed.
  • the first signaling does not need to explicitly indicate the identification number of the configuration that is refreshed by the CSI, but only needs to explicitly indicate that the UE refreshes the buffer of some CSIs, and the certain CSIs are subjected to all the P/SP CSIs.
  • At least one field value in the first signaling needs to be associated with at least one CSI report configuration, where the CSI report configuration is at least one of at least one CSI report configuration configured by the base station through RRC signaling.
  • each CSI report configuration is associated with at least one CSI-RS resource, which is at least one of at least one CSI-RS resource configured by the base station through RRC signaling, and the base station passes the existing RRC signaling. Notify the UE of this association.
  • one of the first signaling values is associated with a plurality of CSI report configurations, and when the field value is indicated, at least one CSI report configuration of the plurality of CSI report configurations associated with the field value is corresponding. The CSI report is triggered, and the CSI cache corresponding to the remaining CSI report configurations in the multiple CSI report configurations is refreshed.
  • a field value in the first signaling needs to be associated with at least one P/SP CSI-RS resource, where the P/SP CSI-RS resource is at least one P/SP CSI-RS configured by the base station through RRC signaling. At least one of the resources. At the same time, each CSI-RS resource is associated with at least one CSI report configuration, and the base station notifies the UE of the association relationship through the existing RRC signaling.
  • a value of the field in the first signaling is indicated, implicitly indicating that at least one CSI-RS resource associated with the field value is punctured, wherein the punctured indicates a certain one included in the CSI-RS resource
  • the CSI-RS is not sent on some REs.
  • Step 33 The UE refreshes the cache of the first CSI according to the indication of the first signaling.
  • the first signaling in the present application may simultaneously indicate that the CSI measurement result that was last affected by the first CSI-RS resource puncturing is not reported.
  • the effective time window of the first CSI is 14 OFDM symbols
  • the first signaling is associated with the CSI-RS resource shown in FIG. 4 through RRC signaling, and the first time is obtained when the UE acquires at 15 ms.
  • the UE clears the CSI measurement result based on the first CSI-RS resource in the previous slot, that is, the first CSI, and skips the CSI when the CSI measurement is performed in the slot where the next CSI-RS resource is located. Measurement results.
  • the first signaling in the embodiment of the present application is carried in the DCI or carried in the MAC CE.
  • the DCI carrying the first signaling is an uplink related DCI or a downlink related DCI; the uplink related DCI is used for uplink resource scheduling, and is carried on the PDCCH, and the downlink related DCI is used for downlink resource scheduling, and It is carried on the PDCCH.
  • the following coding scheme may be adopted:
  • the first signaling is jointly coded with the CSI report triggering field, and the CSI report triggering field will simultaneously indicate the triggering of the AP CSI reporting, and the AP CSI reports the buffer refresh of the corresponding CSI measurement and the CSI measurement corresponding to the P/SP CSI report.
  • the indication method of the channel measurement may include the following process:
  • the network device notifies the UE of the configuration of the first CSI-RS resource, the configuration of the first CSI report, and the association between the first CSI-RS resource and the configuration of the first CSI report, and Notifying the UE of a configuration of the second CSI-RS resource, a configuration of the second CSI report, and an association relationship between the second CSI-RS resource and the configuration of the second CSI report.
  • the number of CSI-RS resources notified by the network device to the UE and the number of configurations of the CSI report are not less than one.
  • the UE obtains a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource; and configuring according to the second CSI-RS resource And configuring a second CSI report associated with the second CSI-RS resource to obtain a second CSI.
  • the UE receives the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to indicate that the UE refreshes the cache of the first CSI. And instructing the UE to report the second CSI.
  • the UE reports the second CSI according to the indication of the first signaling, and refreshes a buffer of the first CSI.
  • the UE reports the second CSI according to the configuration of the second CSI report and the obtained second CSI.
  • the base station associates at least one CSI report configuration with at least one field value in the RRC signaling configuration CSI report triggering field, the field value indicating the P/SP CSI associated with the CSI report configuration associated with the field value.
  • the time-frequency resource of the RS resource is punctured, and the buffer of the CSI measurement affected by the punctured CSI-RS resource is refreshed, and the current indication does not trigger the corresponding CSI report, which is different from the CSI report triggering field in the prior art.
  • the reporting of the CSI corresponding to the CSI-RS resource associated with the field value is triggered.
  • the base station configures CSI report configuration #1 and CSI report configuration #2 and related parameters through RRC signaling.
  • the CSI report configuration#2 configuration parameter includes the CSI report.
  • the UE will refresh the CSI buffer corresponding to the CSI report configuration #2 at the 11 ms time, and give up.
  • the CSI report trigger field value is '10' in the first signaling received by the UE
  • the UE reports the CSI corresponding to the CSI report configuration #1 and refreshes the CSI report configuration #2 corresponding to the CSI report configuration #2.
  • the CSI caches the CSI corresponding to the CSI report configuration #2 when the CSI report trigger field value is '11' in the first signaling received by the UE.
  • the value of the CSI report trigger field in the first signaling received by the UE is '00', the UE does not trigger the CSI report.
  • Table 3 shows an example of the CSI report triggering field of the joint coding.
  • the network device dynamically instructs the UE to clear the CSI buffer affected by the specific punctured CSI-RS resource through the first signaling, thereby improving the accuracy of the CSI measurement and reporting.
  • the existing CSI report triggering field is only used. The triggering of the aperiodic CSI is reported, and the joint coding scheme designed in the coding scheme 1 is used to indicate not only the trigger of the aperiodic CSI reporting but also the aperiodic/periodic CSI based on the punctured. - The refresh of the CSI measurement cache of the RS resource saves signaling overhead.
  • the first signaling may be jointly coded with the CSI measurement request field.
  • the CSI measurement request field is used to trigger the CSI-RS resource, and the CSI-RS resource may be limited to the same CSI-RS resource as the slot in which the field is located.
  • the field value in the CSI measurement request field includes a status indicating that there is no CSI-RS trigger, and the remaining field values are used to indicate the sending of the CSI-RS corresponding to the at least one CSI-RS resource ID associated with the field value, the association relationship.
  • the configuration base station of the CSI-RS resource and the base station are notified to the UE through RRC signaling.
  • the P/SP CSI-RS resource ID is associated with at least one field value in the field, and when the base station indicates a field value, the P/SP associated with the field value is indicated.
  • the P/SP CSI-RS resource corresponding to the CSI-RS resource ID is punctured.
  • the buffer of the CSI measurement related to the P/SP CSI-RS resource is refreshed;
  • the corresponding CSI-RS is sent in the slot where the field value is located.
  • the CSI-RS resource in the slot where the field value is located is also performed. CSI measurement.
  • the indication method of the channel measurement may include the following process:
  • the network device notifies the UE of the configuration of the first CSI-RS resource, the configuration of the first CSI report, and the association relationship between the first CSI-RS resource and the configuration of the first CSI report, and Notifying the UE of a configuration of the second CSI-RS resource, a configuration of the second CSI report, and an association relationship between the second CSI-RS resource and the configuration of the second CSI report.
  • the number of CSI-RS resources notified by the network device to the UE and the number of configurations of the CSI report are not less than one.
  • the UE obtains a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource.
  • the UE receives the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to indicate that the UE refreshes the cache of the first CSI. And triggering the second CSI-RS resource.
  • the UE obtains a second CSI according to the indication of the first signaling, according to a configuration of the second CSI-RS resource, and a configuration of a second CSI report associated with the second CSI-RS resource, and Refreshing the cache of the first CSI.
  • the jointly coded CSI measurement request field is configured to the UE through RRC signaling, as shown in Table 3.
  • Table 3 As shown in FIG. 5, when the CSI-RS #1 is punctured at 11 ms, when the CSI report trigger field value received by the UE is '01' at 12 ms, the UE refreshes the CSI based on the interpretation of the field.
  • the CSI measurement result corresponding to the report configuration and the CSI measurement based on the reissued CSI-RS #1 at 12 ms.
  • the UE when the CSI reporting trigger field value received by the UE is '10', the UE receives CSI-RS#1, performs channel measurement based on CSI-RS#1, and calculates CSI according to the CSI report configuration associated with it. The UE refreshes the CSI measurement result of the CSI report configuration associated with the CSI-RS#2; when the CSI report trigger field value received by the UE is '11', the UE receives the CSI-RS#1, based on the CSI.
  • - RS#1 performs channel measurement and calculates CSI according to the CSI report configuration associated therewith, while the UE receives CSI-RS#2, performs channel measurement based on CSI-RS#2, and calculates CSI according to the CSI report configuration associated therewith;
  • the CSI report trigger field value received by the UE is '00', the UE does not trigger the CSI-RS.
  • the network device dynamically instructs the UE to clear the CSI buffer affected by the specific punctured CSI-RS resource by using the first signaling, and improves the accuracy of the CSI measurement.
  • the CSI measurement request field is only used to indicate the aperiodic CSI. - triggering of the RS resource, and the joint coding scheme designed in the second coding scheme makes the CSI measurement request not only used to indicate the triggering of the aperiodic CSI-RS resource, but also to indicate the aperiodic/periodic CSI-RS based on the punctured
  • the CSI of the resource measures the refresh of the cache.
  • the jointly encoded field is referred to as a CSI request field in this application.
  • the first signaling in the application may be jointly encoded with the jointly coded CSI request field, that is, at least one field value in the CSI request field not only indicates at least one CSI report configuration and its corresponding CSI-RS resource association.
  • the indication method of the channel measurement may include the following process:
  • the network device notifies the UE of the configuration of the first CSI-RS resource, the configuration of the first CSI report, and the association between the first CSI-RS resource and the configuration of the first CSI report, and Notifying the UE of a configuration of the second CSI-RS resource, a configuration of the second CSI report, and an association relationship between the second CSI-RS resource and the configuration of the second CSI report.
  • the number of CSI-RS resources notified by the network device to the UE and the number of configurations of the CSI report are not less than one.
  • the UE obtains a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource.
  • the UE receives the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to indicate that the UE refreshes the cache of the first CSI. And triggering the second CSI-RS resource, and triggering the UE to report the second CSI.
  • the fourth CSI is obtained by the UE according to the indication of the first signaling, according to the configuration of the second CSI-RS resource, and the configuration of the second CSI report associated with the second CSI-RS resource.
  • the second CSI, and the buffer of the first CSI, the at least one field value included in the first signaling triggers the second CSI-RS resource and triggers the UE to report the second CSI.
  • the base station notifies the UE that a certain CSI report corresponding to the field value is triggered by indicating a certain field value in the first signaling of the UE, and the corresponding CSI-RS resource is triggered by the CSI, and the CSI-RS resource is triggered.
  • the field value informs the UE to refresh the cache of the remaining CSI corresponding to the field value.
  • Table 5 shows a configuration example of the joint coding multiplexing CSI request field. It is assumed that the base station configures CSI report configuration #1 for the UE, and its associated CSI-RS resource #1, CSI-RS resource#2, CSI report configuration#2, and its associated CSI-RS resource#3, CSI-RS resource #4.
  • the UE refreshes the CSI buffer corresponding to the CSI report configuration #1; when the CSI request field value received by the UE is '10', the UE receives the CSI- RS#3, performs channel measurement based on CSI-RS#3 and calculates CSI according to CSI report configuration#2 associated with it, and reports the CSI according to CSI report configuration#2, and the UE refreshes the corresponding CSI report configuration#1.
  • CSI buffer when the CSI request field value received by the UE is '11', the UE receives CSI-RS#4, performs channel measurement based on CSI-RS#4, and calculates CSI according to CSI report configuration#2 associated with it.
  • the UE receives CSI-RS#1, performs channel measurement based on CSI-RS#1, and calculates CSI according to CSI report configuration#1 associated with it, and according to CSI report configuration The CSI reports the CSI.
  • the UE does not trigger CSI reporting and CSI-RS resources.
  • the first signaling may be jointly encoded with the PI signaling.
  • at least one field value in the first signaling not only indicates that the data on some CSI-RS resources is refreshed, but also indicates that some CSI report configuration is refreshed. Cache of CSI measurements.
  • the time domain resource occupied by the refreshed data is at least one OFDM symbol included in a previous slot of the slot slot in which the first signaling is located.
  • the UE refreshes the cache of the first CSI according to the indication of the first signaling, and refreshes the cache of the first data, where the time domain resource occupied by the first data is the first At least one OFDM symbol included in the previous slot of the slot in which the slot is located.
  • Table 6 is an example of joint coding of the first signaling and the P1 signaling, where the field value '0' indicates that the UE does not trigger the buffer for refreshing the CSI; the field value '1' indicates that the UE refreshes the cache of the first CSI and refreshes the first data.
  • the coding scheme of the foregoing first signaling is only an example, and the first signaling may also be independently coded.
  • the first signaling in the embodiment of the present application is also used to trigger a CSI-RS transmission.
  • the channel measurement indication method may include the following process:
  • the network device notifies the UE of the configuration of the first CSI-RS resource, the configuration of the first CSI report, and the association relationship between the first CSI-RS resource and the configuration of the first CSI report, and the The UE notifies the configuration of the third CSI-RS resource, and the association relationship between the third CSI-RS resource and the configuration of the first CSI report.
  • the number of CSI-RS resources notified by the network device to the UE and the number of configurations of the CSI report are not less than one.
  • the UE obtains a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource.
  • the UE receives the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to indicate that the UE refreshes the cache of the first CSI. And triggering the third CSI-RS resource.
  • the UE receives a third CSI-RS on the third CSI-RS resource
  • the UE obtains the first CSI based on the third CSI-RS.
  • the field value indicates that the P/SP CSI-RS resource associated with the field value is punctured, and the AP CSI-RS is sent in the same slot as the first signaling.
  • the CSI-RS, the time-frequency location and number of the third CSI-RS resource are the same as the associated P/SP CSI-RS resource.
  • the UE acquires related information of the third CSI-RS resource sent in the slot based on the first signaling, and performs CSI measurement based on the third CSI-RS resource, and the obtained CSI measurement result is used to update the P/SP CSI-RS.
  • the CSI measurement result affected by resource punching.
  • the third CSI-RS triggered by the first signaling has the following feature: the triggered third CSI-RS is sent only in one slot, and the slot where the third CSI-RS is transmitted and the first signaling are located.
  • the slot is the same.
  • the slot occupied by the third CSI-RS resource does not require RRC signaling to configure its related parameters, and the other configuration information defaults to the first CSI associated with the first CSI report configuration associated with the field value indicated by the first signaling.
  • the configuration information of the RS resource is the same.
  • the first signaling in the present application is further used to trigger a response feedback of an Acknowledgement/, Negative Acknowledgement (ACK/NACK) associated with the first signaling.
  • ACK/NACK Acknowledgement/, Negative Acknowledgement
  • the actual triggering of the ACK/NACK response feedback is indicated by combining the resource allocation (RA) field indicating the downlink in the first signaling.
  • RA resource allocation
  • the field value is associated with refreshing a CSI measurement buffer of at least one CSI report configuration, and the downlink resource is indicated in the first signaling.
  • the information indicated by the allocation field is all 0s (indicating that the current slot does not allocate resources to the UE)
  • the user will consider that the first signaling triggers the ACK/NACK reporting at the same time, and the timing of the reporting may be determined by the predefined one as the nearest one.
  • Upstream OFDM symbol or determining the OFDM symbol occupied by the CSI report corresponding to the CSI report configuration; when the base station indicates a certain field value of the first signaling, the field value is associated with refreshing the CSI of the at least one CSI report configuration Measure the buffer, and the information indicating that the downlink resource allocation field indicates that the downlink resource allocation field is non-all 0 (indicating that the current slot allocates resources to the UE), the UE determines that the first signaling does not trigger the ACK/NACK feedback response.
  • the base station indirectly determines whether the UE correctly receives the first signaling signaling by using the ACK/NACK feedback that is fed back by the UE and is associated with the PDSCH of the UE in the current slot.
  • the accuracy and reliability of the CSI measurement and reporting information of the UE can be improved, thereby improving the resource utilization of the network.
  • the embodiment of the present application further provides a channel measurement indication device, where the indication device can perform the execution process of the UE shown in FIG. 3.
  • the indication device 800 includes: a transceiver unit 801. And a processing unit 802. among them,
  • the transceiver unit 801 is configured to receive, by a network device, a configuration of a first channel state information reference signal CSI-RS resource, a configuration of a first channel state information CSI report, and the first CSI-RS resource and the first CSI The associated relationship of the report configuration;
  • the processing unit 802 is configured to obtain a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report that is associated with the first CSI-RS resource;
  • the transceiver unit 801 is further configured to receive the first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to indicate that the processing unit 802 refreshes the The cache of the first CSI.
  • the transceiver unit 801 is further configured to receive, by the network device, a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report. Relationship of the configuration;
  • the processing unit 802 is further configured to obtain a second CSI according to the configuration of the second CSI-RS resource and the configuration of the second CSI report associated with the second CSI-RS resource;
  • the transceiver unit 801 is further configured to report the second CSI according to the indication of the first signaling;
  • the processing unit 802 is further configured to: refresh a cache of the first CSI;
  • the at least one field value included in the first signaling is further used to indicate that the transceiver unit 801 reports the second CSI.
  • the transceiver unit 801 is further configured to receive, by the network device, a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report. Relationship of the configuration;
  • the processing unit 802 is further configured to obtain a second CSI according to a configuration of the second CSI-RS resource and a configuration of a second CSI report associated with the second CSI-RS resource; according to the first signaling Instructing to obtain a second CSI, and refreshing the cache of the first CSI;
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource.
  • the transceiver unit 801 is further configured to receive, by the network device, a configuration of a second CSI-RS resource, a configuration of a second CSI report, and the second CSI-RS resource and a second CSI report. Relationship of the configuration;
  • the processing unit 802 is further configured to: obtain a second CSI according to the indication of the first signaling, report the second CSI, and refresh a cache of the first CSI;
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource and trigger the transceiver unit 801 to report the second CSI.
  • the processing unit 802 is further configured to: refresh the cache of the first CSI according to the indication of the first signaling, and refresh a cache of the first data; wherein, the time domain occupied by the first data
  • the resource is at least one OFDM symbol included in a previous slot of the slot slot in which the first signaling is located.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is a positive integer greater than or equal to 1. .
  • the transceiver unit 801 is further configured to: receive a configuration of a third CSI-RS resource that is notified by the network device, and an association relationship between the third CSI-RS resource and a configuration of the first CSI report; Receiving, by the third CSI-RS resource, a third CSI-RS;
  • the processing unit 802 is further configured to obtain the first CSI based on the third CSI-RS;
  • the at least one field value included in the first signaling is further used to indicate that the third CSI-RS resource is triggered.
  • the first signaling is further used to indicate that the apparatus feeds back a response of the first signaling
  • the transceiver unit 801 is further configured to send the response of the first signaling according to the first signaling.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • each unit refers to the method for indicating the channel measurement provided by the embodiment, and details are not described herein again.
  • the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present application may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .
  • the embodiment of the present application further provides a UE, where the UE can perform the UE side method in the foregoing method embodiment.
  • the UE 900 includes a processor 901, a transceiver 902, and a memory 903. among them,
  • the processor 901 is configured to read a program in the memory 903 and perform the following process:
  • the processor 901 is configured to control, by the transceiver 902, the configuration of the first channel state information reference signal CSI-RS resource notified by the network device, the configuration of the first channel state information CSI report, and the first CSI-RS resource and the An association relationship of the configuration of the first CSI report; obtaining a first CSI according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource; and receiving, by the control transceiver 902 The first signaling sent by the network device, where the first signaling includes at least one field value, where the at least one field value is used to instruct the processing unit to refresh the buffer of the first CSI.
  • the memory 903 can store data used by the processor 901 when performing operations.
  • the memory 903 can be a disk storage, a CD-ROM, an optical storage, or a memory of a physical host that carries a resource control network element, such as a hard disk or a USB disk. Secure Digital (SD) card and more.
  • SD Secure Digital
  • the function of the transceiver unit 801 in FIG. 8 can be implemented by the transceiver 902 in FIG. 9.
  • the function of the processing unit 802 in FIG. 8 can be implemented by the processor 901 in FIG. achieve.
  • Also provided in this embodiment is a computer storage medium for storing computer software instructions for the UE of the above embodiment, which includes a program for executing the above embodiment.
  • the embodiment of the present application further provides a channel measurement indication device, where the indication device can perform the execution process of the network device shown in FIG. 3.
  • the indication device 1000 includes: a transceiver unit. 1001 and processing unit 1002. among them,
  • the processing unit 1002 is configured to allocate, by the user equipment UE, a first channel state information reference signal CSI-RS resource;
  • the transceiver unit 1001 is configured to notify the UE of the configuration of the first channel state information reference signal CSI-RS resource, the configuration of the first channel state information CSI report, and the first CSI-RS resource and the first The association of the configuration of the CSI report;
  • the transceiver unit 1001 is further configured to send the first signaling to the UE, where the first signaling includes at least one field value, where the field value is used to indicate that the UE refreshes a cache of the first CSI.
  • the first CSI is obtained by the UE according to a configuration of the first CSI-RS resource and a configuration of a first CSI report associated with the first CSI-RS resource.
  • the transceiver unit 1001 is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report. Relationship
  • the at least one field value included in the first signaling is further used to indicate that the UE reports a second CSI, where the second CSI is a configuration and an interface of the UE according to the second CSI-RS resource.
  • the configuration of the second CSI report associated with the second CSI-RS resource is obtained.
  • the transceiver unit 1001 is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report. Relationship
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource.
  • the transceiver unit 1001 is further configured to notify the UE of a configuration of a second CSI-RS resource, a configuration of a second CSI report, and a configuration of the second CSI-RS resource and a second CSI report. Relationship
  • the at least one field value included in the first signaling is further used to trigger the second CSI-RS resource and trigger the UE to report the second CSI, where the second CSI is the UE according to the The configuration of the second CSI-RS resource and the configuration of the second CSI report associated with the second CSI-RS resource are obtained.
  • the at least one field value included in the first signaling is further used to indicate a buffer for refreshing the first data, where the time domain resource occupied by the first data is the first signaling At least one OFDM symbol included in a previous slot of the slot in which the slot is located.
  • the first CSI-RS resource is located in any one of the first N OFDM symbols of the orthogonal frequency division multiplexing OFDM symbol where the first signaling is located, and N is a positive integer greater than or equal to 1. .
  • the transceiver unit 1001 further uses:
  • the field value included in the first signaling is further used to indicate that the third CSI-RS resource is triggered.
  • the first signaling is further used to trigger a response of the first signaling
  • the transceiver unit 1001 also receives a response to the first signaling.
  • the first signaling is carried in the downlink control information DCI or in the medium access control element MAC CE.
  • each unit refers to the method for indicating the channel measurement provided by the embodiment, and details are not described herein again.
  • the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present application may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .
  • the embodiment of the present application further provides a network device, where the network device can perform the method of the network device or the base station side in the foregoing method embodiment.
  • the network device 1100 includes: a processor 1101, a transceiver. 1102 and a memory 1103. among them,
  • the processor 1101 is configured to read a program in the memory 1103 and perform the following process:
  • the processor 1101 is configured to allocate a first channel state information reference signal CSI-RS resource to the user equipment UE, and control the transceiver 1102 to notify the UE of the configuration of the first channel state information reference signal CSI-RS resource.
  • the control transceiver 1102 sends a first signaling to the UE, where the first The command includes at least one field value, the field value is used to indicate that the UE refreshes a buffer of the first CSI, where the first CSI is configured by the UE according to the first CSI-RS resource, and the The configuration of the first CSI report associated with a CSI-RS resource is obtained.
  • the memory 1103 can store data used by the processor 1101 when performing operations.
  • the memory 1103 can be a disk storage, a CD-ROM, an optical storage, or a memory of a physical host that carries a resource control network element, such as a hard disk or a USB disk. Secure Digital (SD) card and more.
  • SD Secure Digital
  • the function of the transceiver unit 1001 in FIG. 10 can be implemented by the transceiver 1102 in FIG. 11, and the function of the processing unit 1002 in FIG. 10 can be used in the processor 1101 in FIG. achieve.
  • Also provided in this embodiment is a computer storage medium for storing computer software instructions for the network device or base station of the above embodiment, which comprises a program for executing the above embodiment.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

L'invention concerne un procédé et un dispositif permettant d'indiquer une mesure de canal, qui est utilisé pour résoudre le problème dans lequel un résultat de mesure d'informations d'état de canal (CSI) obtenu sur la base d'une ressource de signal de référence d'informations d'état de canal perforé (CSI-RS) affecte une mesure et un rapport de CSI ultérieurs. Le procédé comprend les étapes suivantes : un équipement utilisateur (UE) reçoit une configuration d'une première ressource de CSI-RS, configuration d'un premier rapport de CSI et de l'association entre la configuration de la première ressource de CSI-RS et la configuration du premier rapport de CSI qui sont notifiées par un dispositif de réseau ; acquérir des premières CSI selon la configuration de la première ressource de CSI-RS et la configuration du premier rapport de CSI associé à la première ressource de CSI-RS ; et recevoir une première signalisation envoyée par le dispositif de réseau, la première signalisation comprenant au moins une valeur de champ, la ou les valeurs de champ étant utilisées pour indiquer à l'UE de rafraîchir une mémoire cache des premières CSI, de sorte que l'UE efface une mémoire cache de CSI spécifique affectée par la ressource de CSI-RS perforée selon une indication dynamique de la première signalisation, ce qui permet d'améliorer la précision de la mesure et du rapport de CSI.
PCT/CN2018/115478 2017-11-17 2018-11-14 Procédé et dispositif permettant d'indiquer une mesure de canal WO2019096172A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711148392.6 2017-11-17
CN201711148392.6A CN109802804B (zh) 2017-11-17 2017-11-17 一种信道测量的指示方法和装置

Publications (1)

Publication Number Publication Date
WO2019096172A1 true WO2019096172A1 (fr) 2019-05-23

Family

ID=66540030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/115478 WO2019096172A1 (fr) 2017-11-17 2018-11-14 Procédé et dispositif permettant d'indiquer une mesure de canal

Country Status (2)

Country Link
CN (1) CN109802804B (fr)
WO (1) WO2019096172A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110139371B (zh) * 2018-02-09 2022-04-12 大唐移动通信设备有限公司 一种资源分配方法、终端和网络侧设备
US10667428B1 (en) * 2018-11-22 2020-05-26 Htc Corporation Heat dissipation module manufacturing method, heat dissipation module and electronic device
WO2022027279A1 (fr) * 2020-08-05 2022-02-10 Qualcomm Incorporated Livre de codes de sélection de port avec csi-rs précodés sélectifs en fréquence

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105493431A (zh) * 2013-08-23 2016-04-13 高通股份有限公司 利用未许可频谱的lte/lte-a中的csi和ack报告增强型方案
CN105991244A (zh) * 2015-01-29 2016-10-05 北京三星通信技术研究有限公司 测量和报告信道状态信息的方法和设备
WO2017010753A1 (fr) * 2015-07-10 2017-01-19 엘지전자(주) Procédé de rapport d'informations d'état de canal dans un système de communication sans fil et dispositif associé

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9008585B2 (en) * 2012-01-30 2015-04-14 Futurewei Technologies, Inc. System and method for wireless communications measurements and CSI feedback
US9973955B2 (en) * 2012-03-16 2018-05-15 Futurewei Technologies, Inc. Systems and methods for reference signals and CSI feedback
US9155098B2 (en) * 2012-03-29 2015-10-06 Qualcomm Incorporated Channel state information reference signal (CSI-RS) configuration and CSI reporting restrictions
US9083479B2 (en) * 2012-05-11 2015-07-14 Intel Corporation Signaling for downlink coordinated multipoint in a wireless communication system
CN107294583B (zh) * 2016-03-31 2020-10-16 华为技术有限公司 一种信道状态测量方法、装置及存储介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105493431A (zh) * 2013-08-23 2016-04-13 高通股份有限公司 利用未许可频谱的lte/lte-a中的csi和ack报告增强型方案
CN105991244A (zh) * 2015-01-29 2016-10-05 北京三星通信技术研究有限公司 测量和报告信道状态信息的方法和设备
WO2017010753A1 (fr) * 2015-07-10 2017-01-19 엘지전자(주) Procédé de rapport d'informations d'état de canal dans un système de communication sans fil et dispositif associé

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
VIVO: "Multiplexing Data with Different Transmission Durations", 3GPP TSG RAN WGI MEETING 90BIS, RL-1717502, vol. RAN WG1, 8 October 2017 (2017-10-08) - 13 October 2017 (2017-10-13), XP051340690 *
VIVO: "Summary of Offline Disscussion on Preemption Indication", 3GPP TSG RAN WG1 MEETING NR#3, RL-1716911, vol. RAN WG1, 21 September 2017 (2017-09-21) - 25 September 2017 (2017-09-25), XP051353984 *

Also Published As

Publication number Publication date
CN109802804A (zh) 2019-05-24
CN109802804B (zh) 2021-08-20

Similar Documents

Publication Publication Date Title
EP3278604B1 (fr) Surveillance d'un canal de commande à bande étroite pour un système à large bande pour réduire la consommation d'énergie
JP6648143B2 (ja) 拡張キャリアアグリゲーションにおけるｐｕｓｃｈを使用するアップリンク制御情報送信
CN108347778B (zh) 通信方法及装置
TWI735616B (zh) 傳輸導頻信號的方法、終端設備和網絡側設備
TWI772312B (zh) 基於無線網絡的通信方法、終端設備和網絡設備
US11412494B2 (en) Method for transmitting downlink control information, terminal, and network side device
WO2020070728A1 (fr) Procédé et appareil de génération d'un rapport csi
TWI737756B (zh) 傳輸數據的方法及裝置
JP2017034694A (ja) Ｌｔｅアドバンスのためのアップリンク資源割り当て
US9872303B2 (en) Terminal device, wireless communication method and integrated circuit
WO2018000929A1 (fr) Procédé de configuration de sous-trames et dispositifs associés
US11057155B2 (en) Data transmission method and apparatus
WO2014176967A1 (fr) Procédé, système et dispositif pour sélectionner des informations de motif de signal de référence de démodulation
BR112018073358B1 (pt) Método para transmitir informação de controle de enlace ascendente, dispositivo de terminal, dispositivo de acesso e meio de armazenamento legível por computador
US9504062B2 (en) Method and device for scheduling downlink data transmission
US20190110309A1 (en) Data transmission method and apparatus
US11877283B2 (en) Terminal device, base station device, and method
CN107889233B (zh) 一种资源配置的方法及装置
US20190260498A1 (en) User equipment and uplink signal transmission method
WO2019096172A1 (fr) Procédé et dispositif permettant d'indiquer une mesure de canal
JP2021535638A (ja) 無線通信システムにおける方法、及び端末デバイスにおける方法
US9742537B2 (en) Terminal device, base station device, integrated circuit, and wireless communication method
WO2014000507A1 (fr) Procédé et dispositif pour indiquer des ressources de canal
CN116264859A (zh) 用于发送csi报告的方法和装置
KR20200102926A (ko) 통신 시스템에서 가변 대역폭을 사용하여 신호를 송수신하는 방법 및 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18878060

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18878060

Country of ref document: EP

Kind code of ref document: A1