WO2020253641A1 - Procédé et appareil d'indication de paramètre de mesure d'état de canal - Google Patents

Procédé et appareil d'indication de paramètre de mesure d'état de canal Download PDF

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Publication number
WO2020253641A1
WO2020253641A1 PCT/CN2020/096017 CN2020096017W WO2020253641A1 WO 2020253641 A1 WO2020253641 A1 WO 2020253641A1 CN 2020096017 W CN2020096017 W CN 2020096017W WO 2020253641 A1 WO2020253641 A1 WO 2020253641A1
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WIPO (PCT)
Prior art keywords
csi
offset value
trigger
trigger offset
terminal
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PCT/CN2020/096017
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English (en)
Chinese (zh)
Inventor
薛祎凡
张战战
周涵
王键
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华为技术有限公司
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Publication of WO2020253641A1 publication Critical patent/WO2020253641A1/fr

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    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method and device for indicating channel state measurement parameters.
  • the standby time of the terminal is an important part that affects the user experience.
  • 5G new air interface
  • LTE long term evolution
  • the 3rd generation partnership project (3GPP) has established a project on the topic of terminal power saving in Rel-16 to study how to reduce terminal power consumption. Optimize the plan to achieve the purpose of terminal energy saving.
  • the network device sends a "PDCCH-based power saving signal" to the terminal to instruct the terminal to perform a series of operations to save power consumption.
  • the power saving signal based on the PDCCH may be in front of an activation period "On Duration" of a discontinuous reception (connected discontinuous reception, C-DRX) to indicate whether the terminal should monitor scheduling during On Duration.
  • the above-mentioned "PDCCH-based power saving signal” can also be used to indicate other functions, such as instructing the terminal to perform channel state information reference signal (CSI-RS) measurement, and the power saving signal can Trigger an aperiodic CSI-RS and a CSI report.
  • CSI-RS channel state information reference signal
  • the network device can know the specific status of the downlink channel, so that it can use more appropriate parameters for scheduling in On Duration, thereby improving transmission efficiency and transmission speed. In this way, the terminal can enter a short sleep state after receiving/sending data quickly, thereby saving power consumption.
  • the aperiodic CSI-RS trigger offset value determines that the PDCCH and the CSI-RS triggered by it are in the same slot or in different time slots. If the triggering offset of the CSI-RS configured by the network device is too small (for example, 0), in order to avoid data and/or signal loss, after receiving the PDCCH, the terminal must buffer the data and/or signal while decoding the PDCCH, and the terminal needs to be turned on at all times Its own radio frequency module caches data and/or signals, causing waste of power consumption.
  • the embodiments of the present application provide a method and device for indicating channel state measurement parameters to reduce terminal power consumption.
  • an embodiment of the application provides a method for indicating channel state measurement parameters.
  • the terminal determines a first channel state information reference signal (CSI-RS) trigger offset value, where the first CSI-RS trigger offset value is based on physical The minimum time slot difference between the time slot where the PDCCH based power saving signal/chanel (PBPSS) of the downlink control channel PDCCH is located and the time slot where the aperiodic CSI-RS triggered by the PBPSS is located; the terminal receives the network equipment The first PBPSS sent; the terminal receives the first CSI-RS sent by the network device; the time slot difference between the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located is not less than the first CSI -RS trigger offset value.
  • CSI-RS channel state information reference signal
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • CSI-RS is used for the terminal to measure the channel state between the terminal and the network device.
  • PBPSS can be used to indicate whether the terminal needs monitoring and scheduling in OnDuration
  • PBPSS is also used to instruct the terminal to perform CSI measurement and a CSI report.
  • the network device can know the specific status of the downlink channel, so that it can use more appropriate parameters for scheduling in On Duration, thereby improving transmission efficiency and transmission speed. In this way, the terminal can enter a short sleep state after receiving/sending data quickly, thereby saving power consumption.
  • the first PBPSS is a specific power saving signal, such as WUS, the first CSI-RS, and is a channel measurement reference signal for the first PBPSS to indicate triggering for a certain channel measurement.
  • the terminal can determine the first CSI-RS trigger offset value, and the first CSI-RS trigger offset value is less than or equal to the time slot of the PDCCH-based power saving signal and the aperiodic CSI-
  • the time slot difference between the time slots where the RS is located, so the first CSI-RS trigger offset value can also be understood as the difference between the time slot where the PDCCH-based power saving signal is located and the time slot where the aperiodic CSI-RS triggered by the PDCCH is located.
  • the terminal can clearly know that the network device will not be within offset time slots after the time slot where the PDCCH-based power saving signal is sent by the network device.
  • the terminal does not need to buffer data during this period, so the terminal can turn off the radio frequency module to save power consumption.
  • the terminal can reduce code speed and processing voltage, thereby saving power consumption.
  • the terminal determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is in the first CSI-RS resource group The smallest value among the trigger offset values of all CSI-RS resources, the first CSI-RS resource group is a group of resources configured by the network device for the terminal, and any resource in the first CSI-RS resource group is only triggered in the PBPSS.
  • the network device configures dedicated resources for the CSI-RS triggered by the PDCCH-based power saving signal, so that the offset between the PDCCH-based power saving signal and the aperiodic CSI-RS triggered by it is sufficiently large.
  • the terminal After the PDCCH-based power saving signal is shifted by offset time slots, the terminal will not receive the CSI-RS transmission, and the RF module can be turned off to avoid unnecessary signal reception, and the terminal can reduce the code speed and reduce the processing voltage , So as to achieve the purpose of energy saving.
  • the resource can only be triggered in the power saving signal based on the PDCCH, and cannot be triggered in the PDCCH used for scheduling data.
  • the implementation manner of configuring the CSI-RS resource by the network device can refer to Embodiment 1 of the present application.
  • the terminal may report the desired "first CSI-RS trigger offset value" to the network device.
  • the terminal determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is all associated with the first trigger state group The minimum value among the trigger offset values of the CSI-RS resources, the first trigger state group is a group of trigger states configured by the network device for the terminal, and any trigger state in the first trigger state group is only indicated in the PBPSS.
  • the network device defines a special triggering state (triggering state) for the CSI-RS triggered based on the PDCCH power saving signal, and each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • triggering state a special triggering state for the CSI-RS triggered based on the PDCCH power saving signal
  • each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • the trigger state can only be indicated in the PDCCH-based power saving signal.
  • the terminal determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is the second trigger offset value, and The second trigger offset value is configured to the terminal by the network device; the second trigger offset value is only used for PBPSS.
  • the resources and triggering state for triggering CSI-RS are configured according to the prior art, that is, the configuration of the PDCCH for scheduling data transmission and the configuration of the CSI measurement triggered by the PDCCH-based power saving signal are the same.
  • the network device configures a second trigger offset value for the terminal, and the second trigger offset value can only be used when the aperiodic CSI-RS signal is triggered in the power saving signal based on the PDCCH.
  • the terminal determining the first CSI-RS trigger offset value includes: the terminal is configured by the network device with the second trigger offset
  • the first CSI-RS trigger offset value is the larger of the second trigger offset value and the third trigger offset value
  • the third trigger offset value is the smallest K0 value indicated by the network device; where, K0 is the time slot difference between the time slot where the PDCCH (scheduling PDCCH, SPDCCH) used for scheduling data is located and the time slot where the physical downlink data channel PDSCH scheduled by the SPDCCH is located.
  • the minimum K0 value indicated by the network device is multiplexed into the radio network temporary identifier RNTI (Radio Network Temporary Identifier) of "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger The offset value offset3.
  • the network device configures a second trigger offset value offset2 for the terminal.
  • the function of the second trigger offset value is to assume that the terminal will not receive the RS before the PDCCH-based power saving signal is offset by 2 time slots.
  • Send configuration considerations for the second trigger offset value: PDCCH decoding time, which may require the terminal to turn on additional hardware and software processing time after decoding;
  • the configuration method of the second trigger offset value may be protocol provisions or network configuration. Due to the larger offset setting, the terminal can reduce code speed and processing voltage, thereby saving power consumption, so the first CSI-RS trigger offset value should be the second trigger offset value and the third trigger offset value The larger value in.
  • the terminal determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value Is the smaller one of the third trigger offset value and the fourth trigger offset value; where the fourth trigger offset value is the time slot difference between the time slot where the PBPSS is located and the OnDuration start time slot.
  • the minimum K0 value indicated by the network device is multiplexed into the wireless network temporary identification RNTI of the "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger offset value, while considering To the fourth trigger offset value, here the fourth trigger offset value refers to the time slot difference between the time slot where the PDCCH-based power saving signal is located and the OnDuration start time slot.
  • the third trigger offset value is less than the fourth trigger offset value, because the CSI-RS triggered by the power saving signal is after the third trigger offset value, the first CSI-RS trigger offset value is the third trigger The offset value.
  • the CSI-RS triggered based on the power saving signal of the PDCCH can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS faster, which is helpful to improve performance, so the first CSI-RS trigger offset value is the third trigger offset value.
  • the first CSI-RS trigger offset value is the smaller of the third trigger offset value and the fourth trigger offset value.
  • the terminal determining the first CSI-RS trigger offset value includes: when the second trigger offset value and the second trigger offset value When the three trigger offset values are all less than the fourth trigger offset value, the first CSI-RS trigger offset value is the larger of the second trigger offset value and the third trigger offset value; otherwise, the first CSI-RS trigger offset value
  • the RS trigger offset value is the fourth trigger offset value.
  • the second trigger offset value offset2, the third trigger offset value offset3, and the fourth trigger offset value offset4 are considered at the same time.
  • the first CSI-RS The trigger offset value should be the larger of the second trigger offset value and the third trigger offset value.
  • the first CSI-RS trigger offset value should be the first Four trigger offset value.
  • the second trigger offset value is smaller than the fourth trigger offset value
  • the first The three trigger offset value is greater than the fourth trigger offset value as an example.
  • the second trigger offset and the third trigger offset value take the larger value of the two, that is, the third trigger offset value.
  • the fourth trigger offset value should be taken as the first CSI-RS trigger offset value.
  • the first CSI-RS trigger offset value can be determined by the following formula: min ⁇ max ⁇ offset2,offset3 ⁇ ,offset4 ⁇ .
  • the present application provides a communication device, which may be a terminal or a chip or a system on a chip in the terminal, and may also be a terminal used to implement the first aspect or any possible design of the first aspect.
  • the communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a receiving unit and a determining unit;
  • the receiving unit receives configuration information or instruction information sent by the network device
  • the determining unit is configured to determine a first channel state information reference signal (CSI-RS) trigger offset value according to the configuration information or indication information received by the receiving unit, where the first CSI-RS trigger offset value is based on the physical downlink
  • CSI-RS channel state information reference signal
  • the receiving unit is also used to receive the first PBPSS sent by the network device; also used to receive the first CSI-RS sent by the network device; the time slot where the first PBPSS is located and the time when the first CSI-RS triggered by the first PBPSS is located The time slot difference between the slots is not less than the first CSI-RS trigger offset value.
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • the terminal can determine the first CSI-RS trigger offset value, where the first CSI-RS trigger offset value is less than or equal to the time slot where the PDCCH-based power saving signal is located and the aperiodic CSI-RS triggered by it.
  • the time slot difference between the time slots where the RS is located, so the first CSI-RS trigger offset value can also be understood as the difference between the time slot where the PDCCH-based power saving signal is located and the time slot where the aperiodic CSI-RS triggered by the PDCCH is located.
  • the terminal can clearly know that the network device will not be within offset time slots after the time slot where the PDCCH-based power saving signal is sent by the network device.
  • the terminal does not need to buffer data during this period, so the terminal can turn off the radio frequency module to save power consumption.
  • the terminal can reduce code speed and processing voltage, thereby saving power consumption.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is all in the first CSI-RS resource group The minimum value among the trigger offset values of the CSI-RS resources, the first CSI-RS resource group is a group of resources configured by the network device for the terminal, and any resource in the first CSI-RS resource group is only triggered in the PBPSS.
  • the network device configures dedicated resources for the CSI-RS triggered by the PDCCH-based power saving signal, so that the offset between the PDCCH-based power saving signal and the aperiodic CSI-RS triggered by it is sufficiently large.
  • the terminal After the PDCCH-based power saving signal is shifted by offset time slots, the terminal will not receive the CSI-RS transmission, and the RF module can be turned off to avoid unnecessary signal reception, and the terminal can reduce the code speed and reduce the processing voltage , So as to achieve the purpose of energy saving.
  • the resource can only be triggered in the power saving signal based on the PDCCH, and cannot be triggered in the PDCCH used for scheduling data.
  • the implementation manner of configuring the CSI-RS resource by the network device can refer to Embodiment 1 of the present application.
  • the terminal may report the desired "first CSI-RS trigger offset value" to the network device.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is associated with the first trigger state group The smallest value among the trigger offset values of all CSI-RS resources, the first trigger state group is a group of trigger states configured by the network device for the terminal, and any one of the trigger states in the first trigger state group is only in the Indicated in PBPSS.
  • the network device defines a special triggering state (triggering state) for the CSI-RS triggered based on the PDCCH power saving signal, and each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • triggering state a special triggering state for the CSI-RS triggered based on the PDCCH power saving signal
  • each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • the trigger state can only be indicated in the PDCCH-based power saving signal.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is the second trigger offset value, The second trigger offset value is configured to the terminal by the network device; the second trigger offset value is only used for the PBPSS.
  • the resources and triggering state for triggering the CSI-RS are configured according to the prior art, that is, the configuration of the PDCCH for scheduling data transmission and the configuration of the CSI measurement triggered based on the power saving signal of the PDCCH are the same configuration.
  • the network device configures a second trigger offset value for the terminal, and the second trigger offset value can only be used when the aperiodic CSI-RS signal is triggered in the power saving signal based on the PDCCH.
  • determining the first CSI-RS trigger offset value includes: the terminal is configured by the network device for the second Trigger offset value; the first CSI-RS trigger offset value is the larger one of the second trigger offset value and the third trigger offset value; the third trigger offset value is the network The smallest K0 value indicated by the device; where the K0 value is the time between the time slot where the PDCCH (scheduling PDCCH, SPDCCH) used for scheduling data is located and the time slot where the physical downlink data channel PDSCH scheduled by the SPDCCH is located Gap difference.
  • the minimum K0 value indicated by the network device is multiplexed into the radio network temporary identifier RNTI (Radio Network Temporary Identifier) of "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger The offset value.
  • the network device configures a second trigger offset value offset2 for the terminal.
  • the function of the second trigger offset value is to assume that the terminal will not receive the RS before the PDCCH-based power saving signal is offset by 2 time slots.
  • Send configuration considerations for the second trigger offset value: PDCCH decoding time, which may require the terminal to turn on additional hardware and software processing time after decoding;
  • the configuration method of the second trigger offset value may be protocol provisions or network configuration. Due to the larger offset setting, the terminal can reduce code speed and processing voltage, thereby saving power consumption, so the first CSI-RS trigger offset value should be the second trigger offset value and the third trigger offset value The larger value in.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value Is the smaller one of the third trigger offset value and the fourth trigger offset value; wherein, the fourth trigger offset value is between the time slot where the PBPSS is located and the OnDuration start time slot The time slot is poor.
  • the minimum K0 value indicated by the network device is multiplexed into the wireless network temporary identification RNTI of the "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger offset value, while considering To the fourth trigger offset value, here the fourth trigger offset value refers to the time slot difference between the time slot where the PDCCH-based power saving signal is located and the OnDuration start time slot.
  • the third trigger offset value is less than the fourth trigger offset value, because the CSI-RS triggered by the power saving signal is after the third trigger offset value, the first CSI-RS trigger offset value is the third trigger The offset value.
  • the CSI-RS triggered based on the power saving signal of the PDCCH can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS faster, which is helpful to improve performance, so the first CSI-RS trigger offset value is the third trigger offset value.
  • the first CSI-RS trigger offset value is the smaller of the third trigger offset value and the fourth trigger offset value.
  • determining the first CSI-RS trigger offset value includes: when the second trigger offset value and the third trigger When the offset values are all less than the fourth trigger offset value, the first CSI-RS trigger offset value is the larger of the second trigger offset value and the third trigger offset value; otherwise, the first CSI-RS trigger The offset value is the fourth trigger offset value.
  • the second trigger offset value offset2, the third trigger offset value offset3, and the fourth trigger offset value offset4 are considered at the same time.
  • the first CSI-RS The trigger offset value should be the larger of the second trigger offset value and the third trigger offset value.
  • the first CSI-RS trigger offset value should be the first Four trigger offset value.
  • the second trigger offset value is smaller than the fourth trigger offset value
  • the first The three trigger offset value is greater than the fourth trigger offset value as an example.
  • the second trigger offset and the third trigger offset value take the larger value of the two, that is, the third trigger offset value.
  • the fourth trigger offset value should be taken as the first CSI-RS trigger offset value.
  • the first CSI-RS trigger offset value can be determined by the following formula: min ⁇ max ⁇ offset2,offset3 ⁇ ,offset4 ⁇ .
  • a communication device in a third aspect, is provided, and the communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device can implement the functions performed by the terminal in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface.
  • the processor may be used to support the communication device to implement the functions involved in the first aspect or any one of the possible designs of the first aspect.
  • the processor may receive the configuration information or instruction information sent by the network device through the communication interface, Determine the first channel state information reference signal (CSI-RS) trigger offset value, where the first CSI-RS trigger offset value is based on the physical downlink control channel PDCCH power saving signal (PDCCH based power saving signal/chanel, The minimum time slot difference between the time slot where the PBPSS is located and the time slot where the aperiodic CSI-RS triggered by the PBPSS is located; the communication interface is also used to receive the first PBPSS sent by the network device; and is also used to receive the network The first CSI-RS sent by the device; the time slot difference between the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located is not less than the first CSI-RS trigger The offset value.
  • CSI-RS channel state information reference signal
  • the communication device may further include a memory, and the memory is configured to store necessary computer-executed instructions and data of the communication device.
  • the processor executes the computer-executable instructions stored in the memory, so that the communication device executes the channel state measurement parameter indication as described in the first aspect or any possible design of the first aspect method.
  • a computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. , So that the computer can execute the channel state measurement parameter indication method described in the first aspect or any one of the possible designs of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameter indication method described in the first aspect or any one of the possible designs of the above aspects .
  • a communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the first aspect or any possible design of the first aspect.
  • the embodiments of the present application provide a method for indicating channel state measurement parameters.
  • a network device sends a first physical downlink control channel PDCCH-based power saving signal (PDCCH-based power saving signal/chanel, PBPSS) to a terminal; network device Send a first channel state information reference signal (CSI-RS) to the terminal; the time slot difference between the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located Less than the first CSI-RS trigger offset value; the first CSI-RS trigger offset value is the minimum time slot difference between the time slot where the PBPSS is located and the time slot where the aperiodic CSI-RS triggered by the PBPSS is located;
  • PDCCH-based power saving signal/chanel, PBPSS physical downlink control channel
  • CSI-RS channel state information reference signal
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • CSI-RS is used for the terminal to measure the channel state between the terminal and the network device.
  • PBPSS can be used to indicate whether the terminal needs monitoring and scheduling in OnDuration
  • PBPSS is also used to instruct the terminal to perform CSI measurement and a CSI report.
  • the network device can know the specific status of the downlink channel, so that it can use more appropriate parameters for scheduling in On Duration, thereby improving transmission efficiency and transmission speed. In this way, the terminal can enter a short sleep state after receiving/sending data quickly, thereby saving power consumption.
  • the first PBPSS is a specific power saving signal, such as WUS, the first CSI-RS, and is a channel measurement reference signal for the first PBPSS to indicate triggering for a certain channel measurement.
  • the network device can send configuration information or indication information to the terminal to enable the terminal to determine the first CSI-RS trigger offset value, and the first CSI-RS trigger offset value is less than or equal to the power consumption based on the PDCCH
  • the time slot difference between the time slot where the signal is saved and the time slot where the aperiodic CSI-RS is triggered, so the first CSI-RS trigger offset value can also be understood as the time slot and the time slot where the power saving signal based on PDCCH is located.
  • the minimum time slot difference between the time slots where the triggered aperiodic CSI-RS is located.
  • the terminal can clearly know that the network device will not be within offset time slots after the time slot where the PDCCH-based power saving signal is sent by the network device.
  • the terminal does not need to buffer data during this period, so the terminal can turn off the radio frequency module to save power consumption.
  • the terminal can reduce code speed and processing voltage, thereby saving power consumption.
  • the first CSI-RS trigger offset value is the smallest among the trigger offset values of all CSI-RS resources in the first CSI-RS resource group Value
  • the first CSI-RS resource group is a group of resources configured by the network device for the terminal, and any resource in the first CSI-RS resource group is only triggered in the PBPSS.
  • the network device configures dedicated resources for the CSI-RS triggered by the PDCCH-based power saving signal, so that the offset between the PDCCH-based power saving signal and the aperiodic CSI-RS triggered by it is sufficiently large.
  • the terminal After the PDCCH-based power saving signal is shifted by offset time slots, the terminal will not receive the CSI-RS transmission, and the RF module can be turned off to avoid unnecessary signal reception, and the terminal can reduce the code speed and reduce the processing voltage , So as to achieve the purpose of energy saving.
  • the resource can only be triggered in the power saving signal based on the PDCCH, and cannot be triggered in the PDCCH used for scheduling data.
  • the implementation manner of configuring the CSI-RS resource by the network device can refer to Embodiment 1 of the present application.
  • the terminal may report the desired "first CSI-RS trigger offset value" to the network device.
  • the first CSI-RS trigger offset value is the smallest value among the trigger offset values of all CSI-RS resources associated with the first trigger state group
  • the first trigger state group is a group of trigger states configured by the network device for the terminal, and any trigger state in the first trigger state group is only indicated in the PBPSS.
  • the network device defines a special triggering state (triggering state) for the CSI-RS triggered based on the power saving signal of the PDCCH, and each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • triggering state a special triggering state for the CSI-RS triggered based on the power saving signal of the PDCCH
  • each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • the first CSI-RS trigger offset value is the second trigger offset value
  • the second trigger offset value is configured by the network device to the terminal;
  • the second trigger offset value is only used for PBPSS.
  • the resources and triggering state for triggering the CSI-RS are configured according to the prior art, that is, the configuration of the PDCCH for scheduling data transmission and the configuration of the CSI measurement triggered based on the power saving signal of the PDCCH are the same configuration.
  • the network device configures a second trigger offset value for the terminal, and the second trigger offset value can only be used when the aperiodic CSI-RS signal is triggered in the power saving signal based on the PDCCH.
  • the terminal is configured by the network device with a second trigger offset value; the first CSI-RS trigger offset The value is the larger of the second trigger offset value and the third trigger offset value; the third trigger offset value is the smallest K0 value indicated by the network device; among them, the K0 value is the PDCCH (scheduling The time slot difference between the time slot where the PDCCH or SPDCCH is located and the time slot where the physical downlink data channel PDSCH scheduled by the SPDCCH is located.
  • the minimum K0 value indicated by the network device is multiplexed into the radio network temporary identifier RNTI (Radio Network Temporary Identifier) of "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger The offset value.
  • the network device configures a second trigger offset value offset2 for the terminal.
  • the function of the second trigger offset value is to assume that the terminal will not receive the RS before the PDCCH-based power saving signal is offset by 2 time slots.
  • Send configuration considerations for the second trigger offset value: PDCCH decoding time, which may require the terminal to turn on additional hardware and software processing time after decoding;
  • the configuration method of the second trigger offset value may be protocol provisions or network configuration. Due to the larger offset setting, the terminal can reduce code speed and processing voltage, thereby saving power consumption, so the first CSI-RS trigger offset value should be the second trigger offset value and the third trigger offset value The larger value in.
  • the first CSI-RS trigger offset value is the third trigger offset value and the fourth trigger offset The smaller one of the values; where the fourth trigger offset value is the time slot difference between the time slot where the PBPSS is located and the start time slot of OnDuration.
  • the minimum K0 value indicated by the network device is multiplexed into the wireless network temporary identification RNTI of the "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger offset value, while considering To the fourth trigger offset value, here the fourth trigger offset value refers to the time slot difference between the time slot where the PDCCH-based power saving signal is located and the OnDuration start time slot.
  • the third trigger offset value is less than the fourth trigger offset value, because the CSI-RS triggered by the power saving signal is after the third trigger offset value, the first CSI-RS trigger offset value is the third trigger The offset value.
  • the CSI-RS triggered based on the power saving signal of the PDCCH can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS faster, which is helpful to improve performance, so the first CSI-RS trigger offset value is the third trigger offset value.
  • the first CSI-RS trigger offset value is the smaller of the third trigger offset value and the fourth trigger offset value.
  • the sixth possible implementation manner of the seventh aspect when the second trigger offset value and the third trigger offset value are both smaller than the fourth trigger offset value, the first CSI-RS trigger offset value is the larger one of the second trigger offset value and the third trigger offset value; otherwise, the first CSI-RS trigger offset value is the fourth trigger offset value.
  • the second trigger offset value offset2, the third trigger offset value offset3, and the fourth trigger offset value offset4 are considered at the same time.
  • the first CSI-RS The trigger offset value should be the larger of the second trigger offset value and the third trigger offset value.
  • the first CSI-RS trigger offset value should be the first Four trigger offset value.
  • the second trigger offset value is smaller than the fourth trigger offset value
  • the first The three trigger offset value is greater than the fourth trigger offset value as an example.
  • the second trigger offset and the third trigger offset value take the larger value of the two, that is, the third trigger offset value.
  • the fourth trigger offset value should be taken as the first CSI-RS trigger offset value.
  • the first CSI-RS trigger offset value can be determined by the following formula: min ⁇ max ⁇ offset2,offset3 ⁇ ,offset4 ⁇ .
  • the present application provides a communication device.
  • the communication device may be a network device or a chip or a system on a chip in a network device, and may also be a network device for implementing any of the seventh aspect or the seventh aspect. Design the functional modules of the described method.
  • the communication device can implement the functions performed by the network equipment in the above aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a generating unit and a sending unit;
  • the generating unit is used to generate configuration information or instruction information
  • the sending unit is used to send configuration information or indication information to the terminal; the terminal determines the first channel state information reference signal (CSI-RS) trigger offset value according to the configuration information or the indication information, where the first CSI-RS trigger offset
  • CSI-RS channel state information reference signal
  • the value is the minimum time slot difference between the time slot of the PDCCH based power saving signal/chanel (PBPSS) and the time slot of the aperiodic CSI-RS triggered by the PBPSS value;
  • the sending unit is also used to send the first PBPSS to the terminal; and is also used to send the first CSI-RS to the terminal; wherein, between the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located The time slot difference is not less than the first CSI-RS trigger offset value.
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is all in the first CSI-RS resource group The minimum value among the trigger offset values of the CSI-RS resources, the first CSI-RS resource group is a group of resources configured by the network device for the terminal, and any resource in the first CSI-RS resource group is only triggered in the PBPSS.
  • the network device configures dedicated resources for the CSI-RS triggered by the PDCCH-based power saving signal, so that the offset between the PDCCH-based power saving signal and the aperiodic CSI-RS triggered by it is sufficiently large.
  • the terminal After the PDCCH-based power saving signal is shifted by offset time slots, the terminal will not receive the CSI-RS transmission, and the RF module can be turned off to avoid unnecessary signal reception, and the terminal can reduce the code speed and reduce the processing voltage , So as to achieve the purpose of energy saving.
  • the resource can only be triggered in the power saving signal based on the PDCCH, and cannot be triggered in the PDCCH used for scheduling data.
  • the implementation manner of configuring the CSI-RS resource by the network device can refer to Embodiment 1 of the present application.
  • the terminal may report the desired "first CSI-RS trigger offset value" to the network device.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is all CSI associated with the first trigger state group -The minimum value of the trigger offset value of the RS resource, the first trigger state group is a group of trigger states configured by the network device for the terminal, and any trigger state in the first trigger state group is only indicated in the PBPSS.
  • the network device defines a special triggering state (triggering state) for the CSI-RS triggered based on the PDCCH power saving signal, and each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • triggering state a special triggering state for the CSI-RS triggered based on the PDCCH power saving signal
  • each CSI triggering state is associated with a certain CSI-RS resource and CSI reporting configuration.
  • the trigger state can only be indicated in the PDCCH-based power saving signal.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is the second trigger offset value, and the second The trigger offset value is configured to the terminal by the network device; the second trigger offset value is only used for PBPSS.
  • the resources and triggering state for triggering the CSI-RS are configured according to the prior art, that is, the configuration of the PDCCH for scheduling data transmission and the configuration of the CSI measurement triggered based on the power saving signal of the PDCCH are the same configuration.
  • the network device configures a second trigger offset value for the terminal, and the second trigger offset value can only be used when the aperiodic CSI-RS signal is triggered in the power saving signal based on the PDCCH.
  • determining the first CSI-RS trigger offset value includes: the network device configures the second trigger offset value for the terminal ;
  • the first CSI-RS trigger offset value is the larger of the second trigger offset value and the third trigger offset value;
  • the third trigger offset value is the smallest K0 value indicated by the network device; where the K0 value It is the time slot difference between the time slot where the PDCCH (scheduling PDCCH, SPDCCH) used for scheduling data is located and the time slot where the physical downlink data channel PDSCH scheduled by the SPDCCH is located.
  • the minimum K0 value indicated by the network device is multiplexed into the radio network temporary identifier RNTI (Radio Network Temporary Identifier) of "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger The offset value.
  • the network device configures a second trigger offset value offset2 for the terminal.
  • the function of the second trigger offset value is to assume that the terminal will not receive the RS before the PDCCH-based power saving signal is offset by 2 time slots.
  • Send configuration considerations for the second trigger offset value: PDCCH decoding time, which may require the terminal to turn on additional hardware and software processing time after decoding;
  • the configuration method of the second trigger offset value may be protocol provisions or network configuration. Due to the larger offset setting, the terminal can reduce code speed and processing voltage, thereby saving power consumption, so the first CSI-RS trigger offset value should be the second trigger offset value and the third trigger offset value The larger value in.
  • determining the first CSI-RS trigger offset value includes: the first CSI-RS trigger offset value is the first The smaller of the three trigger offset value and the fourth trigger offset value; where the fourth trigger offset value is the time slot difference between the time slot where the PBPSS is located and the OnDuration start time slot.
  • the minimum K0 value indicated by the network device is multiplexed into the wireless network temporary identification RNTI of the "PDCCH-based power saving signal", and the minimum K0 value is used as the third trigger offset value, while considering To the fourth trigger offset value, here the fourth trigger offset value refers to the time slot difference between the time slot where the PDCCH-based power saving signal is located and the OnDuration start time slot.
  • the third trigger offset value is less than the fourth trigger offset value, because the CSI-RS triggered by the power saving signal is after the third trigger offset value, the first CSI-RS trigger offset value is the third trigger The offset value.
  • the CSI-RS triggered based on the power saving signal of the PDCCH can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS faster, which is helpful to improve performance, so the first CSI-RS trigger offset value is the third trigger offset value.
  • the first CSI-RS trigger offset value is the smaller of the third trigger offset value and the fourth trigger offset value.
  • determining the first CSI-RS trigger offset value includes: when the second trigger offset value and the third trigger When the offset values are all less than the fourth trigger offset value, the first CSI-RS trigger offset value is the larger of the second trigger offset value and the third trigger offset value; otherwise, the first CSI-RS trigger The offset value is the fourth trigger offset value.
  • the second trigger offset value offset2, the third trigger offset value offset3, and the fourth trigger offset value offset4 are considered at the same time.
  • the first CSI-RS The trigger offset value should be the larger of the second trigger offset value and the third trigger offset value.
  • the first CSI-RS trigger offset value should be the first Four trigger offset value.
  • the second trigger offset value is smaller than the fourth trigger offset value
  • the first The three trigger offset value is greater than the fourth trigger offset value as an example.
  • the second trigger offset and the third trigger offset value take the larger value of the two, that is, the third trigger offset value.
  • the fourth trigger offset value should be taken as the first CSI-RS trigger offset value.
  • the first CSI-RS trigger offset value can be determined by the following formula: min ⁇ max ⁇ offset2,offset3 ⁇ ,offset4 ⁇ .
  • a communication device may be a network device or a chip or a system on a chip in the network device.
  • the communication device can implement the functions performed by the network equipment in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface,
  • the processor may be used to support the communication device to implement the functions involved in the seventh aspect or any one of the possible designs of the seventh aspect.
  • the processor is used to generate configuration information or instruction information; , Determine the first channel state information reference signal (CSI-RS) trigger offset value, the first CSI-RS trigger offset value is based on the physical downlink control channel PDCCH power saving signal (PDCCH based power saving signal/chanel , The minimum value of the time slot difference between the time slot where the PBPSS is located and the time slot where the aperiodic CSI-RS triggered by the PBPSS is located; the communication interface is also used to send the first PBPSS to the terminal; The first CSI-RS; the time slot difference between the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located is not less than the first CSI-RS trigger offset value ; Among them, PBPSS is used to indicate whether the terminal needs monitoring and scheduling in OnDuration before the activation period OnDuration of a discontinuous reception.
  • PDCCH based power saving signal/chanel The minimum value of the time slot difference between the time slot
  • the communication device may further include a memory, and the memory is configured to store necessary computer-executed instructions and data of the communication device.
  • the processor executes the computer-executable instructions stored in the memory, so that the communication device executes the channel state measurement parameter indication as described in the seventh aspect or any one of the possible designs of the seventh aspect method.
  • a computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. , So that the computer can execute the channel state measurement parameter indication method described in the seventh aspect or any possible design of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameter indication described in the seventh aspect or any possible design of the foregoing aspects method.
  • a communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the seventh aspect or any possible design of the seventh aspect.
  • an embodiment of the present application provides a channel state measurement parameter indication system, including the terminal according to any one of the second aspect to the sixth aspect, and any one of the eighth aspect to the twelfth aspect One aspect of the network equipment.
  • this application provides a method for indicating channel state measurement parameters.
  • a terminal is configured by a network device with a first channel state information reference signal CSI-RS resource group, a second CSI-RS resource group, and a first CSI-RS resource. Any resource in the group is triggered only in the first signal, and any resource in the second CSI-RS resource group is triggered only in the second signal; the terminal receives the first signal sent by the network device, and the first signal triggers the first CSI- Transmission of one resource in the RS resource group; the first signal is a power saving signal based on the physical downlink control channel PDCCH, and the second signal is a PDCCH for scheduling data transmission.
  • this application provides a communication device.
  • the communication device may be a terminal or a chip or a system on a chip in the terminal, and may also be a terminal used to implement any of the fourteenth aspect or the fourteenth aspect.
  • the communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a receiving unit and a determining unit;
  • the determining unit is used to configure the first channel state information reference signal CSI-RS resource group and the second CSI-RS resource group according to the configuration information received by the receiving unit. Any one of the resources in the first CSI-RS resource group is only in Triggered in the first signal, any resource in the second CSI-RS resource group is triggered only in the second signal;
  • the receiving unit is further configured to receive a first signal sent by the network device, the first signal is used to trigger the transmission of a resource in the first CSI-RS resource group; the first signal is a power saving signal based on the physical downlink control channel PDCCH, The second signal is the PDCCH for scheduling data transmission.
  • a communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device can implement the functions performed by the terminal in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface.
  • the processor can be used to support the communication device to implement the functions involved in the first aspect or any of the possible designs of the first aspect.
  • the processor can configure the first channel state information reference with the configuration information received through the communication interface Signal CSI-RS resource group, and the second CSI-RS resource group, any resource in the first CSI-RS resource group is only triggered in the first signal, and any resource in the second CSI-RS resource group is only triggered in the second signal
  • the communication interface is also used to receive the first signal sent by the network device, the first signal is used to trigger the transmission of a resource in the first CSI-RS resource group; the first signal is a function based on the physical downlink control channel PDCCH
  • the second signal is the PDCCH for scheduling data transmission.
  • a computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. At this time, the computer can execute the channel state measurement parameter indication method described in the first aspect or any one of the possible designs of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameter indication described in the first aspect or any one of the possible designs of the above aspects method.
  • a communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the first aspect or any possible design of the first aspect.
  • the technical effect brought by any one of the sixteenth aspect to the nineteenth aspect can refer to the technical effect brought by any possible design of the fourteenth aspect or the fourteenth aspect. Repeat it again.
  • this application provides a method for indicating channel state measurement parameters.
  • a network device configures a first channel state information reference signal CSI-RS resource group, a second CSI-RS resource group, and a first CSI-RS resource to the terminal. Any resource in the group is only triggered in the first signal, and any resource in the second CSI-RS resource group is only triggered in the second signal; the first signal sent by the network device to the terminal, the first signal triggers the Transmission of one resource in the first CSI-RS resource group; the first signal is a power saving signal based on the physical downlink control channel PDCCH, and the second signal is a PDCCH for scheduling data transmission.
  • the present application provides a communication device.
  • the communication device may be a network device or a chip or a system on a chip in a network device, and may also be a network device used to implement the seventh aspect or any one of the seventh aspect. It is possible to design the functional modules of the described method.
  • the communication device can implement the functions performed by the network equipment in the above aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a generating unit and a sending unit;
  • the sending unit is used to send configuration information to the terminal.
  • the terminal configures the first channel state information reference signal CSI-RS resource group and the second CSI-RS resource group according to the configuration information. Any one resource in the first CSI-RS resource group is only Triggered in the first signal, any resource in the second CSI-RS resource group is triggered only in the second signal;
  • the sending unit is also configured to send a first signal to the terminal, where the first signal triggers the transmission of a resource in the first CSI-RS resource group; the first signal is a power saving signal based on the physical downlink control channel PDCCH , The second signal is the PDCCH for scheduling data transmission.
  • a communication device may be a network device or a chip or a system on a chip in the network device.
  • the communication device can implement the functions performed by the network equipment in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface
  • the processor may be used to support the communication device to implement the functions involved in any possible design of the seventh aspect or the seventh aspect, for example: the processor is used to generate configuration information; the terminal configures the first channel state information reference according to the configuration information Signal CSI-RS resource group, and the second CSI-RS resource group, any resource in the first CSI-RS resource group is only triggered in the first signal, and any resource in the second CSI-RS resource group is only triggered in the second signal Triggered in the signal; the communication interface is also used to send a first signal to the terminal, the first signal triggers the transmission of a resource in the first CSI-RS resource group; the first signal is based on the power consumption of the physical downlink control channel PDCCH To save the signal, the second signal is the PDCCH for scheduling data transmission.
  • a computer-readable storage medium may be a readable non-volatile storage medium.
  • the computer-readable storage medium stores instructions when it is stored on a computer. During operation, the computer can execute the channel state measurement parameter indication method described in the seventh aspect or any one of the possible designs of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameters described in the seventh aspect or any of the possible designs of the foregoing aspects Indication method.
  • a communication device in a twenty-fifth aspect, is provided.
  • the communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the seventh aspect or any possible design of the seventh aspect.
  • the technical effect brought by any design method of the 22nd aspect to the 25th aspect can be referred to the technical effect brought by any possible design of the above-mentioned twentieth aspect or the twentieth aspect. ,No longer.
  • an embodiment of the present application provides a channel state measurement parameter indicating system, including the terminal according to any one of the fifteenth aspect to the nineteenth aspect, and, as in the twenty-first aspect to the first aspect The network device of any one of the twenty-fifth aspects.
  • the embodiments of the present application provide a method for indicating channel state measurement parameters.
  • the terminal is configured with a first trigger state group and a second trigger state group by a network device, and any one of the trigger states in the first trigger state group is only in Indicated in the first signal, any trigger state in the second trigger state group is only indicated in the second signal;
  • the terminal receives the first signal sent by the network device, and the first signal indicates a trigger state in the first trigger state group ;
  • Any trigger state is used to trigger CSI-RS transmission;
  • the first signal is a power saving signal based on the physical downlink control channel PDCCH, and the second signal is a PDCCH for scheduling data transmission.
  • the present application provides a communication device.
  • the communication device may be a terminal or a chip or a system on a chip in the terminal, and may also be a terminal used to implement the fourteenth aspect or any one of the fourteenth aspect. It is possible to design the functional modules of the described method.
  • the communication device can implement the functions performed by the terminal in the foregoing aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a receiving unit and a determining unit;
  • the determining unit is used to configure the first trigger state group and the second trigger state group according to the configuration information received by the receiving unit. Any trigger state in the first trigger state group is only indicated in the first signal, and the second trigger state Any trigger state in the group is only indicated in the second signal;
  • the receiving unit is further configured to receive a first signal sent by a network device, the first signal indicating a trigger state in the first trigger state group; any trigger state is used to trigger CSI-RS transmission; the first signal is based on physical The power consumption saving signal of the downlink control channel PDCCH, and the second signal is the PDCCH for scheduling data transmission.
  • a communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device can implement the functions performed by the terminal in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface.
  • the processor may be used to support the communication device to implement the functions involved in the first aspect or any possible design of the first aspect.
  • the processor may configure the first trigger state group through the configuration information received through the communication interface, And the second trigger state group, any trigger state in the first trigger state group is only indicated in the first signal, and any trigger state in the second trigger state group is only indicated in the second signal;
  • the communication interface is also used for receiving A first signal sent by a network device, the first signal indicates a trigger state in the first trigger state group; any trigger state is used to trigger CSI-RS transmission; the first signal is based on the power consumption of the physical downlink control channel PDCCH To save the signal, the second signal is the PDCCH for scheduling data transmission.
  • a computer-readable storage medium may be a readable non-volatile storage medium, and the computer-readable storage medium stores instructions when it runs on a computer. At this time, the computer can execute the channel state measurement parameter indication method described in the first aspect or any one of the possible designs of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameters described in the first aspect or any one of the possible designs of the foregoing aspects Indication method.
  • a communication device in a thirty-second aspect, is provided.
  • the communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the first aspect or any possible design of the first aspect.
  • the technical effect brought by any design method of the twenty-ninth aspect to the thirty-second aspect can be referred to the above-mentioned twenty-seventh or any one of the possible designs of the twenty-seventh aspect. The technical effect will not be repeated.
  • this application provides a method for indicating channel state measurement parameters.
  • the network device configures the terminal with a first trigger state group and a second trigger state group, and any one of the first trigger state groups is only in the first trigger state group.
  • the signal indicates that any trigger state in the second trigger state group is only indicated in the second signal; the first signal sent by the network device to the terminal, the first signal indicates a trigger state in the first trigger state group; any One trigger state is used to trigger CSI-RS transmission; the first signal is a power saving signal based on the physical downlink control channel PDCCH, and the second signal is a PDCCH for scheduling data transmission.
  • the present application provides a communication device.
  • the communication device may be a network device or a chip or a system on a chip in a network device, and may also be a network device for implementing any of the seventh aspect or the seventh aspect. It is possible to design the functional modules of the described method.
  • the communication device can implement the functions performed by the network equipment in the above aspects or various possible designs, and the functions can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the aforementioned functions.
  • the communication device may include: a generating unit and a sending unit;
  • the sending unit is used to send configuration information to the terminal.
  • the terminal configures the first trigger state group and the second trigger state group according to the configuration information. Any trigger state in the first trigger state group is only indicated in the first signal, and the second trigger Any trigger state in the state group is only indicated in the second signal;
  • the sending unit is also used to send a first signal to the terminal, where the first signal indicates a trigger state in the first trigger state group; any trigger state is used to trigger CSI-RS transmission; the first signal is based on The power consumption saving signal of the physical downlink control channel PDCCH, and the second signal is the PDCCH for scheduling data transmission.
  • a communication device In a thirty-fifth aspect, a communication device is provided.
  • the communication device may be a network device or a chip or a system on a chip in the network device.
  • the communication device can implement the functions performed by the network equipment in the above-mentioned aspects or various possible designs.
  • the functions can be implemented by hardware.
  • the communication device may include: a processor and a communication interface
  • the processor may be used to support the communication device to implement the functions involved in any possible design of the seventh aspect or the seventh aspect, for example: the processor is used to generate configuration information; the terminal configures the first trigger state group according to the configuration information , And the second trigger state group, any trigger state in the first trigger state group is only indicated in the first signal, and any trigger state in the second trigger state group is only indicated in the second signal; the communication interface is also used for The first signal sent to the terminal, the first signal indicates a trigger state in the first trigger state group; any trigger state is used to trigger CSI-RS transmission; the first signal is based on the physical downlink control channel PDCCH The power saving signal, the second signal is the PDCCH for scheduling data transmission.
  • a computer-readable storage medium may be a readable nonvolatile storage medium, and the computer-readable storage medium stores instructions when it is stored on a computer.
  • the computer can execute the channel state measurement parameter indication method described in the seventh aspect or any one of the possible designs of the foregoing aspects.
  • a computer program product containing instructions which when running on a computer, enables the computer to execute the channel state measurement parameters described in the seventh aspect or any of the possible designs of the foregoing aspects Indication method.
  • a communication device in a thirty-eighth aspect, is provided.
  • the communication device may be a terminal or a chip or a system on a chip in the terminal.
  • the communication device includes one or more processors and one or more memories.
  • the one or more memories are coupled with the one or more processors, and the one or more memories are used to store computer program codes, and the computer program codes include computer instructions.
  • the communication device is caused to execute the channel state measurement parameter indication method as described in the seventh aspect or any possible design of the seventh aspect.
  • the technical effects brought by any of the thirty-fifth aspect to the thirty-eighth aspect can be referred to the above-mentioned thirty-third aspect or any possible design of the thirty-third aspect. The technical effect will not be repeated.
  • an embodiment of the present application provides a channel state measurement parameter indicating system, including the terminal according to any one of the twenty-eighth aspect to the thirty-second aspect, and, as the thirty-fourth aspect To the network device described in any one of the thirty-eighth aspect.
  • Figure 1 is a schematic diagram of C-DRX cycle
  • Figure 2 is a schematic diagram of terminal energy saving according to an embodiment of the application.
  • Fig. 3 is a schematic diagram of a PDCCH-based power saving signal used for monitoring and scheduling in the prior art
  • Figure 4 is a schematic diagram of a channel state measurement method in the prior art
  • FIG. 5 is a schematic diagram of problems existing in a channel state measurement method in the prior art
  • FIG. 6 is a simplified schematic diagram of a system architecture provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of a communication device provided by an embodiment of this application.
  • Figure 8 is a flow chart of a communication method in the prior art
  • FIG. 9A is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 9B is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 11A is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 11B is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 12 is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 13A is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 13B is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • 14A is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 14B is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • FIG. 14C is a schematic diagram of a channel state measurement method provided by an embodiment of this application.
  • 15 is a schematic diagram of the composition of a communication device 150 provided by an embodiment of this application.
  • FIG. 16 is a schematic diagram of the composition of a communication device 160 provided by an embodiment of this application.
  • FIG. 17 is a schematic diagram of the composition of a channel state measurement system provided by an embodiment of the application.
  • the physical downlink control channel is mainly used to carry downlink control information (DCI).
  • DCI can include public control information (such as system information, etc.) and user-specific information (such as downlink resources) Allocation instructions, uplink scheduling, random access response, uplink power control parameters, etc.) etc.
  • the PDCCH can schedule data channels through the DCI carried by it.
  • DCI can be used to indicate the transmission parameters of the data channel (such as the time domain resource location of the data channel, etc.).
  • the network device can send the PDCCH to the terminal. After receiving the PDCCH, the terminal can demodulate the DCI in the PDCCH first, and then transmit the data channel on the time domain resource location indicated by the DCI.
  • the data channel can be used to carry data.
  • the 3GPP protocol divides the data channel into: physical uplink shared channel (PUSCH) (or called uplink data channel) and physical downlink channel (PDSCH) (Alternatively called the downlink data channel).
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink channel
  • the PUSCH is used to carry data sent from the terminal to the network device (or referred to as uplink data)
  • the PDSCH is used to carry data sent from the network device to the terminal (or referred to as downlink data).
  • the PDCCH can also trigger the transmission of aperiodic channel state information reference signal (aperiodic channel state information reference signal, aperiodic CSI-RS) through the DCI carried by it, and/or the PDCCH can trigger the aperiodic sounding reference through the DCI carried by it Signal (sounding reference signal, SRS) transmission, etc.
  • aperiodic channel state information reference signal aperiodic channel state information reference signal, aperiodic CSI-RS
  • the network device can send the PDCCH to the terminal.
  • the DCI carried by the PDCCH is used to trigger the transmission of CSI-RS.
  • the terminal After receiving the PDCCH, the terminal can demodulate the DCI in the PDCCH according to the instructions of the DCI
  • the triggering state determines the triggered CSI-RS resource, and determines the time domain resource location of the resource according to the configuration information of the resource, and finally receives the CSI-RS sent by the network device at the corresponding time domain resource location.
  • the CSI-RS is used for the terminal to measure the channel state between the terminal and the network device.
  • the CSI-RS may include one or more channel state measurement resources.
  • the network device may send DCI for triggering CSI-RS to the terminal, and the terminal determines the triggered CSI-RS resource according to the triggering state indicated by the DCI, and determines the time domain resource location of the resource according to the configuration information of the resource.
  • the terminal receives the CSI-RS sent by the network device according to the time domain resource position of the CSI-RS, measures the channel state measurement resources included in the CSI-RS, and reports channel state information (CSI-RS) to the network device according to the measurement results. ).
  • CSI-RS channel state information
  • the SRS is used for network equipment to measure channel information between it and the terminal.
  • the network device can send the DCI used to trigger the SRS to the terminal, and the terminal determines the time domain resource location of the triggered SRS resource according to the triggering state indicated by the DCI. At the time domain resource location of the SRS, some or all of the terminal’s antennas are used.
  • one PDCCH may occupy one or more symbols in one slot.
  • the embodiment of the present application does not limit the time slot occupied by the PDCCH, and the starting position of the symbols occupied by the PDCCH in the time slot and the number of symbols.
  • Discontinuous reception can be called discontinuous reception (connected discontinuous reception, C-DRX) in a connected state.
  • the basic principle of C-DRX is that a terminal in the RRC_CONNECTED state is configured with a C-DRX cycle.
  • Figure 1 is a schematic diagram of the C-DRX cycle.
  • the C-DRX cycle can be composed of an activation period "On Duration” and a sleep period "Opportunity for DRX".
  • the terminal monitors and receives the physical downlink control channel (PDCCH); during the “Opportunity for DRX” time, the terminal does not receive the PDCCH to reduce power consumption.
  • the cycle size of the C-DRX and the length of the activation period and the sleep period are configured to the terminal by the network device.
  • the network device configures the terminal in advance with scheduling information monitoring occasion, and the terminal starts to monitor the PDCCH when the scheduling information monitoring opportunity configured by the network device arrives.
  • the scheduling information monitoring opportunity can be configured to the terminal periodically, so that the terminal periodically monitors the PDCCH.
  • the time slot occupied by the PDCCH and the time slot occupied by the data channel scheduled by the PDCCH and/or the triggered reference signal may be the same or different.
  • the scheduling mode of the terminal is divided into: single slot scheduling, cross-slot scheduling.
  • Time slot scheduling (cross-slot scheduling) simultaneous slot scheduling may mean that the PDCCH and its scheduled data channel and/or triggered reference signal are located in the same time slot
  • cross-slot scheduling may mean that the PDCCH and its scheduled data channel and/or triggered reference signal are located in different time slots, for example :
  • the PDCCH and the scheduled PDSCH can be in the same time slot, that is, simultaneous slot scheduling, or in different time slots, that is, cross-slot scheduling.
  • the K0 value indicates whether the PDCCH and its scheduled PDSCH are scheduled at the same time or across time slots. Among them, the K0 value is the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled PDSCH.
  • the value of K0 has a value set, which is configured by the network device through RRC signaling For the terminal, for example, it can be ⁇ 0, 1, 2... ⁇ .
  • the network device can directly indicate the K0 value to the terminal, or the network device configures a time domain resource allocation (TDRA) table for the terminal.
  • the TDRA table includes the index value (index) and the K0 value corresponding to the index value.
  • the network device can indirectly indicate the K0 value to the terminal by indicating the index value to the terminal.
  • Table 1 below is a schematic diagram of the TDRA table configured by the network device for the terminal when the PDCCH schedules the PDSCH.
  • the TDRA table includes the corresponding relationship between the index value and the K0 value. As shown in Table 1, when the index value is 0, the K0 value When the index value is 1, the K0 value is 1; when the index value is 2, the K0 value is 2.
  • the network device schedules the PDSCH to the terminal through the PDCCH, the network device can configure the TDRA table shown in the terminal configuration table 1. Subsequently, if the network device indicates the index value of 1 to the terminal, the terminal can use the index value of 1 as the index and query the table 1. It is determined that the K0 value corresponding to the index value 1 is 1, and the PDCCH and PDSCH are in different time slots, that is, cross-slot scheduling.
  • the PDCCH and the scheduled PUSCH can be in the same time slot, that is, simultaneous slot scheduling, or in different time slots, that is, cross-slot scheduling.
  • the K2 value is used to indicate whether the PDCCH and its scheduled PUSCH are scheduled at the same time or across time slots.
  • the K2 value is the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled PUSCH.
  • the value of K2 has a value set, which is configured by the network device to the terminal, for example It can be ⁇ 0, 1, 2... ⁇ .
  • the network device can directly indicate the K2 value to the terminal, or the network device configures a TDRA table for the terminal.
  • the TDRA table includes an index value (index) and a K2 value corresponding to the index value.
  • the network device can indicate the index value to the terminal.
  • the K2 value is indirectly indicated to the terminal.
  • Table 2 below is a schematic diagram of the TDRA table configured by the network device for the terminal when the PDCCH schedules the PUSCH.
  • the TDRA table includes the correspondence between the index value and the K2 value. As shown in Table 2, when the index value is 0, the K2 value Is 0; when the index value is 1, the K2 value is 2.
  • the network device schedules the PUSCH to the terminal through the PDCCH, the network device can configure the TDRA table shown in Table 2 to the terminal.
  • the terminal can use the index value of 1 as the index and query the table Second, determine that the K2 value corresponding to the index value 1 is 2, the PDCCH and the PDSCH are in different time slots, and there is a difference of 2 time slots between the two, that is, cross-slot scheduling.
  • Table 1 and Table 2 are only exemplary tables. In addition to the content shown in the table, Table 1 and Table 2 may also include other content, such as starting and length indication values (starting and length). incdication value), mapping type (mapping type), etc., this application does not limit this.
  • the PDCCH and the CSI-RS triggered by it can be in the same time slot or in different time slots.
  • the aperiodic CSI-RS triggering offset is used to determine that the PDCCH and the CSI-RS triggered by it are in the same slot or in different time slots.
  • the aperiodic CSI-RS trigger offset value is the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled CSI-RS
  • the aperiodic CSI-RS trigger offset value can be determined by the network device Configured to the terminal, if the aperiodic CSI-RS trigger offset value is equal to 0, it means that the PDCCH and the triggered CSI-RS are in the same time slot. If the aperiodic CSI-RS trigger offset value is greater than 0, it means that the PDCCH and the triggered CSI-RS are in different time slots.
  • the PDCCH and the triggered SRS can be in the same time slot or in different time slots.
  • aperiodic SRS triggering offset triggering offset
  • the aperiodic SRS trigger offset value is the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the scheduled SRS.
  • the aperiodic SRS trigger offset value can be configured by the network equipment to the terminal, if The aperiodic SRS trigger offset value is equal to 0, indicating that the PDCCH and the triggered SRS are in the same time slot. If the aperiodic SRS trigger offset value is greater than 0, it means that the PDCCH and the triggered SRS are in different time slots.
  • optimization can be carried out from two aspects: one is to improve the data transmission efficiency when there is business load (that is, there is data to be transmitted); the other is to improve the data transmission efficiency when there is no business load (that is, when there is no data to be transmitted). ), reduce the energy consumption of the terminal.
  • the second point it is mentioned in the report of the International Telecommunication Union-Radiocommunication Sector (ITU-R) that the energy consumption of the terminal can be reduced by increasing the proportion of the terminal in the sleep state.
  • ITU-R International Telecommunication Union-Radiocommunication Sector
  • the terminal In order to avoid data and/or signal loss, after receiving the PDCCH, the terminal must buffer the data and/or signal while decoding the PDCCH, as shown in Figure 2.
  • the terminal needs to turn on its own radio frequency module at all times to buffer data and/or signals.
  • the terminal knows in advance that the PDCCH and the data channel are scheduled across time slots, as shown on the right side of Figure 2, there must be no data channel scheduled by the PDCCH and/or trigger reference signals in the current time slot, then the terminal is receiving the PDCCH Afterwards, in the process of decoding the PDCCH, you can turn off your own radio module without buffering any data and/or signals to achieve energy saving. As shown on the right side of Figure 2, the shaded part corresponding to the t2 period is the energy saved by the terminal. .
  • the terminal when the terminal has no data service, the terminal should be placed in the "cross-slot scheduling" state to save power consumption (provided that all K0 meet K0>0); when the terminal has data service arrival At this time, the terminal should be in the state of "simultaneous slot scheduling" to ensure that the data transmission is completed quickly and to reduce time delay.
  • the power consumption of NR terminals is greater than that of LTE terminals.
  • 3GPP 3rd Generation Partnership Project
  • network equipment can send to the terminal a power saving signal (power saving signal/channel) based on the physical downlink control channel (PDCCH), as shown in Figure 3, based on the PDCCH
  • the power saving signal can be before the On Duration of a C-DRX, and the power saving signal can be used to instruct the terminal to receive discontinuous reception (connected discontinuous reception, C-CRX) in the next one or more connected states.
  • a cycle cycle
  • it is in a sleep state or an awake state
  • the solid line box in FIG. 3 represents On Duration when the terminal is in the awake state
  • the dashed box represents On Duration when the terminal is in the sleep state.
  • the terminal After receiving the power saving signal, the terminal can be in a sleep state or in an awake state according to the indication of the power saving signal, so that some circuits of the terminal can be turned off in the sleep state to reduce the energy consumption of the terminal.
  • the above-mentioned "PDCCH-based power saving signal” can also be used to indicate other functions, such as instructing the terminal to perform CSI (channel state) measurement.
  • the power saving signal based on PDCCH can trigger an aperiodic CSI-RS and a CSI report.
  • network equipment can know the specific status of the downlink channel, so that more appropriate parameters (such as MCS (modulation and coding scheme), precoding matrix, etc.) can be used in On Duration. Scheduling, thereby improving transmission efficiency and transmission speed. In this way, the terminal can enter a short sleep state after receiving/sending data quickly, thereby saving power consumption.
  • MCS modulation and coding scheme
  • precoding matrix precoding matrix
  • the time slot difference between the time slot occupied by the PDCCH and the time slot occupied by the triggered CSI-RS can be determined by the aperiodic CSI-RS triggering offset value (triggering offset).
  • triggering offset As shown in Figure 5, if the triggering offset of the CSI-RS configured by the network device is too small, to avoid data and/or signal loss, after the terminal receives the PDCCH-based power-saving signal, it decodes the PDCCH-based power-saving signal At the same time, it is necessary to turn on its own radio frequency module at all times to buffer the CSI-RS signal, resulting in waste of terminal power consumption.
  • an embodiment of the present application provides a method for indicating channel state measurement parameters to determine a first CSI-RS trigger offset value for the PDCCH-based power saving signal, so that the PDCCH-based power saving signal is The time slot difference between the slot and the time slot where the triggered aperiodic CSI-RS is located is not less than the first CSI-RS trigger offset value.
  • the first CSI-RS trigger offset value is less than or equal to the time slot difference between the time slot where the PDCCH-based power saving signal is located and the time slot where the triggered aperiodic CSI-RS is located
  • the first CSI-RS trigger is The offset value can be understood as the minimum time slot difference between the time slot where the PDCCH-based power saving signal is located and the time slot where the triggered aperiodic CSI-RS is located, so the above is determined by the PDCCH-based power saving signal
  • a first CSI-RS triggering offset value may also be referred to as a minimum CSI-RS triggering offset value (minimum CSI-RS triggering offset), where the minimum CSI-RS triggering offset value may be ⁇ 0, 1, 2.ising ⁇ .
  • the terminal can clearly know that the network device will not send CSI-RS within offset1 time slot after the time slot where the network device sends the PDCCH-based power saving signal. Signal, the terminal does not need to buffer data during this period of time, so the terminal can turn off the radio frequency module to save power consumption. In addition, the terminal can decode the PDCCH-based power saving signal within this time range.
  • the offset1 is set to be large enough, the terminal can reduce the code speed and processing voltage, thereby saving power consumption.
  • the first CSI-RS trigger offset value, the minimum CSI-RS trigger offset, and offset1 mentioned in the embodiments of this application document have the same meaning and are only different expressions in different scenarios. .
  • a channel state measurement method provided in the embodiment of the present application may be used to support a variety of scheduling a communication system, such as: can be applied to the fourth generation (4 th generation, 4G) system, LTE (long term evolution, LTE) system, the Any system in the 5th generation (5G) system, new radio (NR) system, NR-vehicle-to-everything (V2X) system can also be applied to other next-generation systems Communication systems, etc., are not restricted.
  • the following uses the communication system shown in FIG. 6 as an example to describe the method provided in the embodiment of the present application.
  • Fig. 6 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include a network device and multiple terminals (such as terminal 1 and terminal 2).
  • the terminal can be located in the coverage area of the network device, and is connected to the network device.
  • the system shown in FIG. 6 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include a network device and multiple terminals (such as terminal 1 and terminal 2).
  • the terminal can be located in the coverage area of the network device, and is connected to the network device.
  • the terminal can receive the PDCCH-based power saving signal sent by the network device, and determine under the indication of the DCI included in the PDCCH-based power saving signal to be in the next one or more connection states In the discontinuous reception period, whether it is in a sleep state or an awake state, or receiving an aperiodic CSI-RS sent by a network device or sending an SRS to the network device under the indication of the DCI included in the PDCCH-based power saving signal.
  • the network equipment in FIG. 6 is mainly used to implement functions such as terminal resource scheduling, wireless resource management, and wireless access control.
  • the network device may be an access network (AN)/radio access network (RAN) device, or a device composed of multiple 5G-AN/5G-RAN nodes, and It can be network equipment (nodeB, NB), evolved network equipment (evolution nodeB, eNB), next-generation network equipment (generation nodeB, gNB), transceiver point (transmission receiving point, TRP), transmission point (transmission point, TP) ), roadside unit (RSU), and any other node among some other access nodes, etc., are not restricted.
  • AN access network
  • RAN radio access network
  • gNB next-generation network equipment
  • TRP transmission receiving point
  • TP transmission point
  • RSU roadside unit
  • the device used to implement the function of the network device may be the network device, or may be a device or functional module capable of supporting the network device to implement the function, such as a chip system.
  • the method for measuring the channel state provided by the embodiment of the present application will be described by taking the example that the device for implementing the function of the network device is the network device.
  • the terminal in FIG. 6 may be a terminal equipment (terminal equipment) or a user equipment (UE) or a mobile station (mobile station, MS) or a mobile terminal (mobile terminal, MT), etc.
  • the terminal in Figure 6 can be a mobile phone, a tablet computer or a computer with wireless transceiver function, it can also be a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control Wireless terminals in the smart city, wireless terminals in unmanned driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in smart cities, smart homes, vehicle-mounted terminals, etc.
  • VR virtual reality
  • AR augmented reality
  • the device for implementing the function of the terminal may be a terminal, or a device capable of supporting the terminal to implement the function, such as a chip system.
  • the method for measuring the channel state provided by the embodiment of the present application will be described by taking an example in which the device for implementing the function of the terminal is a terminal.
  • the terminal in order to save the power consumption of the terminal to the greatest extent, the terminal first determines the minimum CSI-RS trigger offset value, and then the terminal receives the power saving signal based on the PDCCH sent by the network device.
  • the time slot from which the network device transmits the power saving signal based on the PDCCH to the time slot triggering the transmission of the aperiodic CSI-RS signal must not be less than the minimum CSI-RS trigger offset value, Therefore, the terminal does not need to cache data during this period, and can turn off its own radio frequency module, which has achieved the purpose of energy saving.
  • the terminal can know the specific time slot of the CSI-RS triggered by the power saving signal based on PDCCH, and then go to the actual time slot to receive the CSI-RS .
  • Fig. 6 is only an exemplary framework diagram, and the number of nodes included in Fig. 6 is not limited, and in addition to the functional nodes shown in Fig. 6, the communication system shown in Fig. 6 may also include other nodes, such as: Core network equipment, gateway equipment, application servers, etc., are not restricted.
  • the terminal and network device shown in FIG. 6 may adopt the composition structure shown in FIG. 7 or include the components shown in FIG. 7.
  • FIG. 7 is a schematic diagram of the composition of a communication device 700 provided by an embodiment of the application.
  • the communication device 700 may be a terminal or a chip or a system on a chip in the terminal, and is used to implement the channel state measurement parameter indication method provided in the embodiment of the application.
  • the communication device 700 may include a processor 701, a communication line 702, and a communication interface 703. Further, the communication device 700 may further include a memory 704. Among them, the processor 701, the memory 704, and the communication interface 703 may be connected through a communication line 702.
  • the processor 701 may be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processing (DSP), a microprocessor, or a microcontroller. , Programmable logic device (PLD) or any combination of them.
  • the processor 701 may also be other devices with processing functions, such as circuits, devices, or software modules.
  • the communication line 702 is used to transmit information between various components included in the communication device 700.
  • the communication interface 703 is used to communicate with other devices or other communication networks.
  • the other communication network may be Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.
  • the communication interface 703 may be a module, a circuit, a transceiver or any device capable of implementing communication.
  • the memory 704 is used to store instructions. Among them, the instructions can be computer programs.
  • the memory 704 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, or may be a random access memory (RAM) or Other types of dynamic storage devices that store information and/or instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory, CD- ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or data structures The desired program code and any other medium that can be accessed by the computer, but not limited to this.
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • CD- ROM compact disc read-only memory
  • optical disc storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 704 may exist independently of the processor 701, or may be integrated with the processor 701.
  • the memory 704 may be used to store instructions or program codes or some data.
  • the memory 704 may be located in the communication device 700 or outside the communication device 700, and is not limited.
  • the processor 701 is configured to execute instructions stored in the memory 704 to implement the scheduling switching method provided in the following embodiments of the present application. For example, when the communication device 700 is a terminal or a chip in the terminal or a system on a chip, the processor 701 may execute instructions stored in the memory 704 to implement the steps executed by the terminal in the following embodiments of the present application. For another example, when the communication device 700 is a functional entity or a chip or a system on a chip in the functional entity, the processor 701 may execute instructions stored in the memory 704 to implement the steps performed by the functional entity in the following embodiments of the present application.
  • the processor 701 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 7.
  • the communication device 700 includes multiple processors.
  • the processor 701 in FIG. 7 it may also include a processor 707.
  • the communication apparatus 700 further includes an output device 705 and an input device 706.
  • the input device 706 is a device such as a keyboard, a mouse, a microphone or a joystick
  • the output device 705 is a device such as a display screen and a speaker.
  • the communication device 700 may be a general-purpose device or a special-purpose device.
  • the communication device 700 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device with a similar structure in FIG. 7.
  • the composition structure shown in FIG. 7 does not constitute a limitation on the communication device.
  • the communication device may include more or less components than those shown in the figure, or combine certain components. , Or different component arrangements.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • each device mentioned in the following method embodiments may have the component parts shown in FIG. 7 and will not be repeated.
  • the names of messages exchanged between various network elements or the names of parameters in the messages in the following embodiments of the present application are just examples, and other names may also be used in specific implementations, which are not specifically limited in the embodiments of the present application.
  • the following PDCCH-based power saving signal can also be named the first signal, etc.
  • "offset1" and “offset2" in the embodiment of the present application are used to distinguish values of CSI-RS trigger offset values in different scenarios, rather than used to describe a specific order of objects.
  • Fig. 8 is a flow chart of signaling interaction between network equipment triggering CSI-RS and terminal CSI reporting in the prior art. As shown in Fig. 8, the method may include:
  • Step 801 The network device generates configuration information.
  • Step 802 The network device configures aperiodic CSI-RS resources for the terminal.
  • the configuration of the CSI-ResourceConfig is indicated in the RRC signaling configuration IE, and the recourceType is configured as aperiodic.
  • Step 803 The network device configures a group of triggering states for the terminal.
  • CSI-SemiPersistentOnPUSCH-TriggerStateList configures a set of trigger states, where each trigger state is associated with a CSI report configuration CSI-ReportConfig, and each CSI-ReportConfig is associated with one or more CSI-RS resources.
  • Step 804 The network device generates a PDCCH for scheduling PUSCH.
  • a network device when a network device triggers a CSI-RS signal, it can only be indicated in the PDCCH for scheduling the uplink data PUSCH.
  • Step 805 The network device sends the PDCCH for scheduling the PUSCH to indicate a trigger state.
  • the network device sends a field in the DCI in the PDCCH for scheduling the PUSCH to indicate an index of a trigger state.
  • Step 806 The terminal receives and analyzes the PDCCH of the scheduled PUSCH.
  • Step 807 The network device generates a corresponding CSI-RS signal.
  • Step 808 The network device sends the corresponding CSI-RS according to the indication of the PDCCH for scheduling the PUSCH.
  • CSI-RS is triggered by a field called CSI request (CSI request) in scheduling DCI.
  • CSI request CSI request
  • Step 809 The terminal receives the CSI-RS according to the related configuration corresponding to the trigger state, performs channel estimation, and generates CSI report information.
  • Step 810 The terminal sends CSI report information to the network device.
  • the CSI report information is carried in the scheduled PUSCH.
  • Step 811 The network device analyzes the CSI reported information, and determines subsequent PDSCH scheduling parameters.
  • the network device before the network device triggers the CSI-RS signal through the PDCCH, the network device first configures the terminal with aperiodic CSI-RS resources and a set of trigger states. Each trigger state is associated with a CSI report configuration CSI-ReportConfig. One CSI-ReportConfig is associated with one or more CSI-RS resources.
  • the process of triggering CSI-RS resources by a network device may be:
  • a network device configures dedicated resources for the CSI-RS triggered by the PDCCH-based power saving signal, so that the PDCCH-based power saving signal and its triggered aperiodic CSI-RS
  • the offset between is large enough to avoid unnecessary signal reception, so as to achieve the purpose of energy saving.
  • the implementation manner of configuring CSI-RS resources by the network device can refer to the following manner 1 to manner 3.
  • Manner 1 Define a set of CSI-RS resources, and the CSI-RS resources can only be triggered in the power saving signal based on the PDCCH, and cannot be triggered in the PDCCH for scheduling data transmission (scheduling).
  • the power saving signal may be wake-up signal (WUS), which is sent before the On Duration of a C-DRX, and is used to indicate whether the terminal needs to be in the next one or more C-DRX cycles.
  • PDCCH for monitoring scheduling data.
  • the dedicated CSI-RS resource configured by the network device for the terminal can be defined as AP-CSI-RS-ResourceSet-ForPowerSaving.
  • the terminal may report the desired "minimum CSI-RS trigger offset value" to the network device, and this value is exemplarily represented by offset1.
  • Method 2 Define AP-CSI-RS-ResourceSet-ForPowerSaving.
  • the configuration information of AP-CSI-RS-ResourceSet-ForPowerSaving is included in the enable information of the PDCCH-based power saving signal.
  • the configuration mode of the PDCCH-based power saving signal may be:
  • PowerSavingConfig is the configuration signaling for enabling the terminal power saving function, which includes the power saving signal configuration signaling PowerSavingSignalConfig based on the PDCCH.
  • PowerSavingSignalConfig may include:
  • SearchSpaceIndex the index value of the search space for monitoring the "power saving signal", that is, in which search space the "power saving signal” is to be monitored;
  • IndicatedFunctions What are the functions to be indicated in the "power saving signal", for example, it may include at least “indicating whether to monitor scheduling in On Duration", and may also include "whether aperiodic CSI-RS measurement can be triggered”. In the embodiment of this application, both of these functions exist.
  • AP-CSI-RS-ResourceSet-ForPowerSaving is a set of resources configured by network equipment for "PDCCH-based power saving signal”.
  • AP-CSI-RS-Resources-ForPowerSaving is a specific set of resource configurations, where each configuration may include UsedSequence (used sequence) and offset value.
  • aperiodicTriggeringOffset INTEGER(0..6) is the configured offset value.
  • the terminal can report the expected "minimum CSI-RS trigger offset value" to the network device. As long as the offset value is configured to be large enough, it can be guaranteed that the terminal will be able to decode successfully within the offset time slots after the PDCCH time slot.
  • the enabling information of the power saving signal based on the PDCCH includes association information, which is associated with the configuration information of AP-CSI-RS-ResourceSet-ForPowerSaving.
  • the configuration mode of the PDCCH-based power saving signal may be:
  • AP-CSI-RS-Resources-ForPowerSaving SEQUENCE OF resourceID: the configuration information associated with AP-CSI-RS-ResourceSet-ForPowerSaving through resourceID.
  • AP-CSI-RS-Resource-ForPowerSaving Contains AP-CSI-RS-ResourceSet-For PowerSaving configuration information.
  • the terminal may report the expected "minimum CSI-RS trigger offset value" to the network device, and this value is exemplarily represented by offset1.
  • the network device can configure dedicated resources for the CSI-RS triggered by the PDCCH-based power-saving signal through any of the above methods, so that the PDCCH-based power-saving signal and the The offset between the triggered aperiodic CSI-RS is sufficiently large.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the offset slot after the time slot where the PDCCH-based power saving signal is located, the terminal can not buffer data during this period of time, thereby To achieve the purpose of energy saving.
  • the terminal can decode the PDCCH-based power saving signal in the offset time slots after the time slot where the PDCCH-based power saving signal is located.
  • a larger offset value can reduce the speed of the terminal and reduce the processing voltage. Thereby saving power consumption.
  • the terminal After the terminal successfully decodes the DCI of the power saving signal, it can know the specific time slot of the CSI-RS triggered by the power saving signal, so that the actual time slot of the CSI-RS triggered by the power saving signal to receive the CSI-RS.
  • the network device defines a special triggering state (triggering state) for the CSI-RS triggered based on the PDCCH power saving signal.
  • CSI-RS is triggered by a field called CSI request (CSI request) in scheduling DCI.
  • This field actually does not directly indicate the CSI-RS resource, but indicates a CSI triggering state.
  • the network device will configure a set of CSI triggering states for the terminal through the CSI-AperiodicTriggerStateList parameter, and each CSI triggering state will be associated with a certain CSI-RS resource and CSI reporting configuration.
  • the network device triggers a CSI measurement
  • the terminal will determine the CSI-RS resource that needs to be received according to the triggering state indicated by the network device, and report the relevant configuration of the CSI feedback information.
  • the network device configures a set of triggering states for the terminal at most.
  • the method of this embodiment is to define a set of new trigger states for the CSI-RS triggered by the PDCCH power saving signal.
  • the configuration signaling may be called CSI-AperiodicTriggerStateListForPowerSaving.
  • the PDCCH is a PDCCH for scheduling data transmission
  • the trigger is the CSI-RS resource corresponding to the trigger state 0 configured by the parameter CSI-AperiodicTriggerStateList, and the CSI-RS resource that reports the CSI feedback information.
  • the trigger is the CSI-RS resource corresponding to the trigger state 0 configured by the parameter CSI-AperiodicTriggerStateListForPowerSaving, and the related configuration for reporting CSI feedback information.
  • the terminal may report the expected "minimum CSI-RS trigger offset value" to the network device.
  • the CSI-RS and triggering state are configured according to the prior art, that is, the configuration of the PDCCH for scheduling data transmission and the configuration of the CSI measurement triggered by the power saving signal based on the PDCCH is the same configuration.
  • the network device configures a second CSI-RS trigger offset value for the terminal, that is, the minimum CSI-RS trigger offset value is the second trigger offset value, and the second CSI-RS trigger offset The value can only be used when the aperiodic CSI-RS signal is triggered in the PDCCH-based power saving signal, and cannot be used when the aperiodic CSI-RS signal is triggered by the PDCCH for scheduling data transmission.
  • the time slot where the reference signal is located is the first time slot and subsequent time slots after the time slot where the WUS DCI is located.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the first time slot after the time slot where the WUS DCI is located, the terminal can not buffer data during this time, thereby achieving the purpose of energy saving. After the terminal successfully decodes the WUS DCI, it can know the specific time slot where the CSI-RS triggered by the WUS is located, and then go to the actual time slot where the WUS triggers the CSI-RS to receive the CSI-RS.
  • the network device can semi-statically configure the "K0/K2/CSI-RS trigger offset value/SRS trigger offset value" for the terminal through the RRC signaling to the "available minimum value", that is, the minimum K0 value of the network configuration (minimum K0), the smallest K2 value (minimum K2), the smallest aperiodic CSI-RS trigger offset value (minimum Aperiodic CSI-RS triggering offset), or the smallest aperiodic SRS trigger offset value (minimum aperiodic SRS triggering offset) .
  • These "available minimum values” may be configured for each cell, or may be configured for each BWP (Bandwidth part).
  • the terminal RRC is semi-statically configured or dynamically indicating the "currently available minimum value" of "K0/K2/CSI-RS trigger offset value/SRS trigger offset value".
  • the minimum CSI-RS trigger offset value in this embodiment is only used for the power saving signal based on the PDCCH, and cannot be used for the PDCCH for scheduling data transmission.
  • the value of offset2 may be included in the configuration information of the power saving signal based on the PDCCH and configured.
  • the terminal may report the desired "minimum CSI-RS trigger offset value" to the network side.
  • the terminal needs the network device to quickly trigger the CSI-RS to perform the channel state test.
  • the value of offset2 may be less than the time for the terminal to decode WUS DCI. Therefore, before the decoding is successful, the network The device still needs to trigger CSI-RS transmission according to the position indicated by off2.
  • the power consumption of WUS detection is high, the network device can trigger the transmission of CSI-RS faster, so that the terminal can receive the reference signal as soon as possible. Can realize faster channel tracking or beam management.
  • the minimum CSI-RS trigger offset value for WUS to trigger CSI-RS is 0.
  • the time slot where the reference signal triggered by WUS is located is the time slot where the WUS DCI is located or the time slot after the time slot where the WUS DCI is located.
  • the terminal since it is impossible to know whether the CSI-RS triggered by the WUS is triggered at the same time or across the time slot before the WUS DCI is successfully decoded, the terminal starts to buffer data when receiving the WUS signal.
  • offset2 can be an integer or a length of time.
  • offset2 is an integer, it means simultaneous slot scheduling or cross-slot scheduling.
  • Offset2 may also be a time length, such as a symbol level, such as 10 symbols, and the terminal assumes that the WUS-triggered CSI-RS transmission will not be received within 10 symbols after the WUS monitoring moment.
  • the smallest K0 value indicated by the network device is called offset3, and offset3 is multiplexed into the radio network temporary identifier RNTI (Radio Network Temporary Identifier) of the "PDCCH-based power saving signal", that is, “based on The "minimum CSI-RS trigger offset value" of the "PDCCH power saving signal” triggering the CSI-RS is offset3.
  • RNTI Radio Network Temporary Identifier
  • offset3 can be used for both the PDCCH-based power saving signal and the PDCCH for scheduling data transmission.
  • the power consumption saving signal in the embodiment of the present application may be based on PDCCH. If it is a power saving signal based on PDCCH, a new RNTI is introduced, such as PS-RNTI, then the cyclic redundancy check (CRC, Cyclic redundancy check) of the power saving signal based on PDCCH is scrambled by PS-RNTI of.
  • a new RNTI such as PS-RNTI
  • CRC Cyclic redundancy check
  • the power saving signal in the embodiment of the present application may be wake-up signal (WUS). If the power saving signal is called WUS, and a WUS-RNTI is introduced, then WUS is a PDCCH scrambled by WUS-RNTI.
  • WUS wake-up signal
  • the power consumption saving signal is WUS as an example for description.
  • the network can semi-statically configure the "per-Cell" or “per-BWP” or “per-UE” "K0/K2/CSI-RS trigger offset” for the terminal through RRC signaling.
  • Value/SRS trigger offset value "Available minimum value", that is, the network configuration minimum K0 value (minimum K0), minimum K2 value (minimum K2), minimum aperiodic CSI-RS trigger offset value ( minimum Aperiodic CSI-RS triggering offset, or minimum aperiodic SRS triggering offset (minimum aperiodic SRS triggering offset).
  • the network can configure one or more "available minimum values", if the network is configured with multiple "available Minimum value", the network needs to indicate that one of the values is the default value, or the standard determines that one of the multiple "available minimum values” configured according to certain rules is the default value, for example, the smallest value among multiple values. The value is the default value. If the network is only configured with a "available minimum value", this value is the default value.
  • the terminal For one value of "K0/K2/CSI-RS trigger offset value/SRS trigger offset value", when the network configures one or more "available minimum values" through RRC signaling for the first time, the terminal will Use its default value as the "currently available minimum value”.
  • the network can dynamically adjust the "currently available minimum value" through L1 signaling (for example, PDCCH).
  • WUS can dynamically indicate the "currently available minimum value”.
  • Method 1 The method stipulated in the agreement
  • the RS scenario for example, is applicable to a scenario where WUS triggers a network device to send aperiodic CSI-RS, and/or a scenario where WUS triggers a terminal to send aperiodic SRS signals.
  • Method 2 The way of network configuration.
  • the network can choose to configure whether the smallest K0 value currently available applies to the scenario where WUS triggers RS.
  • the configuration method can be Method 1 or Method 2:
  • Manner 1 Indicate in the RRC configuration IE of the PDCCH-based power saving signal.
  • the RRC configuration IE is as follows:
  • Method 2 When configuring the minimum value available for K0, configure the function.
  • the minimum K0 value indicated by the network device is referred to as offset3, and the minimum K0 value indicated by the network device can be applied to the scenario where WUS triggers CSI-RS through either of the above two methods. That is, the "minimum CSI-RS trigger offset value" for WUS to trigger CSI-RS is offset3. As a terminal, the terminal will not receive the CSI-RS triggered by WUS before the time slot indicated by ⁇ WUS time slot + offset2 ⁇ .
  • the time slot where the CSI-RS triggered by WUS is located is the second time slot or the time slot after the time slot where WUS DCI is located.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the second time slot after the time slot where the WUS DCI is located, the terminal can not buffer data during this time, thereby achieving the purpose of energy saving. After the terminal successfully decodes the WUS DCI, it can know the specific time slot where the CSI-RS triggered by the WUS is located, and then go to the actual time slot where the WUS triggers the CSI-RS to receive the CSI-RS.
  • the network device uses the designated minimum K0 value as the "minimum CSI-RS trigger offset" for WUS to trigger the CSI-RS, and the power consumption of the WUS can be dynamically adjusted and detected by the dynamic indication of offset3.
  • offset3 is multiplexed into the "PDCCH-based power saving signal" wireless network temporary identification RNTI.
  • the network device is "power saving based on PDCCH” "Signal” configuration "Second CSI-RS trigger offset value” offset2, if offset3 ⁇ offset2, the "minimum CSI-RS trigger offset value” of WUS trigger CSI-RS is equal to offset2, otherwise, WUS triggers CSI-RS
  • the “minimum CSI-RS trigger offset value” is equal to offset3, that is, the “minimum CSI-RS trigger offset value” of the WUS trigger CSI-RS is equal to the larger value of offset2 and offset3.
  • the offset2 in this embodiment is equivalent to the "second CSI-RS trigger offset value" configured by the network device to the terminal in the third embodiment of this application.
  • the function of Offset2 The terminal assumes that it will not receive RS transmission before offset 2 time slots after WUS Occasion; the configuration consideration of offset2: PDCCH decoding time, after decoding, it may require the terminal to turn on additional hardware and software processing time; offset2 Configuration method: It can be protocol stipulation or network configuration.
  • the "minimum CSI-RS trigger offset value" of the WUS trigger RS is equal to offset2.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the first time slot after the time slot where the WUS DCI is located, the terminal can not buffer data during this time, thereby achieving the purpose of energy saving. After the terminal successfully decodes the WUS DCI, it can know the specific time slot where the CSI-RS triggered by the WUS is located, and then go to the actual time slot where the WUS triggers the CSI-RS to receive the CSI-RS.
  • the "minimum CSI-RS trigger offset value" of the WUS trigger RS is equal to offset3.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the second time slot after the time slot where the WUS DCI is located, the terminal can not buffer data during this time, thereby achieving the purpose of energy saving. After the terminal successfully decodes the WUS DCI, it can know the specific time slot where the CSI-RS triggered by the WUS is located, and then go to the actual time slot where the WUS triggers the CSI-RS to receive the CSI-RS.
  • offset2 represents a time length
  • the "minimum CSI-RS trigger offset value" for WUS to trigger CSI-RS is equal to offset2.
  • the terminal does not need to cache data during the period of offset2
  • the network device sets an offset2 for the terminal.
  • the terminal does not need to cache data in advance within the offset2, which ensures that there is an upper limit for the power consumption of the terminal to detect WUS.
  • the terminal can further reduce the processing speed of decoding WUS, and further save the power consumption of the terminal to detect WUS.
  • an offset4 is considered.
  • the minimum K0 value indicated by the network device is called offset3, and offset3 is multiplexed into the wireless network temporary identification RNTI of the "PDCCH-based power saving signal".
  • offset4 refers to WUS and OnDuration If offset3>offset4, the "minimum CSI-RS trigger offset value" of WUS trigger CSI-RS is equal to offset4, otherwise, the "minimum CSI-RS trigger offset value” of WUS trigger CSI-RS is equal to offset3 That is, the "minimum CSI-RS trigger offset value” for WUS to trigger CSI-RS is equal to the smaller value of offset3 and offset4.
  • the time slot where the CSI-RS triggered by the WUS is located is the time slot where the WUS DCI is located or the time slot after the time slot where the WUS DCI is located.
  • the terminal it is impossible to know whether the RS triggered by the WUS is triggered at the same time or across the time slot before the WUS DCI is successfully decoded, so the terminal needs to start buffering data when receiving the WUS signal.
  • the CSI-RS triggered by WUS can only be sent after offset3.
  • the "minimum CSI-RS trigger offset value" of the WUS-triggered CSI-RS is set to offset4, and the WUS-triggered CSI-RS can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS triggered by the WUS more quickly, which helps to improve the performance.
  • offset4 is taken into consideration, where offset4 refers to the distance between WUS and OnDuration. This can be divided into the following situations.
  • offset2 ⁇ offset4 and offset3 ⁇ offset4 the minimum triggering offset of the WUS to trigger the RS is the larger value of offset2 and offset3.
  • the terminal since the terminal knows that the network device will definitely not trigger the transmission of CSI-RS before the second time slot after the time slot where the WUS DCI is located, the terminal can not buffer data during this time, thereby achieving the purpose of energy saving. After the terminal successfully decodes the WUS DCI, it can know the specific time slot where the CSI-RS triggered by the WUS is located, and then go to the actual time slot where the WUS triggers the CSI-RS to receive the CSI-RS.
  • offset2>offset4 and offset3>offset4 the minimum triggering offset of the WUS to trigger the RS is offset4.
  • the triggered CSI-RS can be sent after the terminal enters On Duration. This can help the terminal to track the channel or perform operations such as beam management by receiving the CSI-RS triggered by the WUS more quickly, which helps to improve the performance.
  • the terminal must have successfully decoded WUS before entering OnDuration, so after entering OnDuration, the terminal only needs to receive the CSI-RS in the actual time slot in which the WUS triggers RS transmission.
  • the WUS trigger "minimum CSI-RS trigger offset value" is equal to offset4.
  • the terminal will select offset2 in order to further reduce the processing speed of decoding WUS and further save the power consumption of the terminal to detect WUS.
  • the larger value of offset3 and offset3 is regarded as the minimum triggering offset, that is, the "minimum CSI-RS triggering offset value" is offset3.
  • the WUS-triggered RS can be sent after the terminal enters OnDuration, that is, the "minimum CSI-RS trigger offset value" is equal to offset4.
  • This can help the terminal to track the channel or perform operations such as beam management by receiving the RS triggered by the WUS more quickly, and contribute to the improvement of performance.
  • the terminal must have successfully decoded WUS before entering OnDuration, so after entering OnDuration, the terminal only needs to receive the CSI-RS in the actual time slot in which the WUS triggers RS transmission.
  • the "minimum CSI-RS trigger offset value" for WUS to trigger aperiodic CSI-RS can be determined by the following formula: min ⁇ max ⁇ offset2, offset3 ⁇ , offset4 ⁇ .
  • the embodiment of the present application can divide the first device and the second device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 15 shows a structural diagram of a communication device 150.
  • the communication device 150 may be a terminal, or a chip in the terminal, or a system on a chip.
  • the communication device 150 may be used to perform the functions of the terminal involved in the above-mentioned embodiments. .
  • the communication device 150 shown in FIG. 15 includes: a receiving unit 151 and a determining unit 152.
  • the receiving unit 151 is configured to receive configuration information or instruction information sent by a network device.
  • the determining unit 152 is configured to determine a first channel state information reference signal (CSI-RS) trigger offset value according to the configuration information or indication information received by the receiving unit, where the first CSI-RS trigger offset value is based on the physical The minimum time slot difference between the time slot where the PDCCH based power saving signal/chanel (PBPSS) of the downlink control channel PDCCH is located and the time slot where the aperiodic CSI-RS triggered by the PBPSS is located.
  • CSI-RS channel state information reference signal
  • the receiving unit is also configured to receive the first PBPSS sent by the network device; and is also configured to receive the first CSI-RS sent by the network device; the time slot where the first PBPSS is located and the first CSI-RS triggered by the first PBPSS
  • the time slot difference between the time slots where the RS is located is not less than the first CSI-RS trigger offset value.
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • the communication device 150 provided in the embodiment of the present application is configured to perform the function of the terminal in the above-mentioned channel state measurement parameter indication, and therefore can achieve the same effect as the above-mentioned channel state measurement parameter indication method.
  • the communication device 150 shown in FIG. 150 may include: a processing module and a communication module.
  • the processing module is used to control and manage the actions of the communication device 150.
  • the processing module may integrate the function of the determining unit 152, and the communication module may be used to integrate the function of the receiving unit 151, such as the functional module or network entity shown in FIG. Communication between.
  • the communication device 150 may also include a storage module for storing the program code and data of the communication device 150.
  • the processing module may be a processor or a controller. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module can be a transceiver circuit or a communication interface.
  • the storage module may be a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device 150 shown in FIG. 15 may be the communication device shown in FIG. 7.
  • FIG. 16 shows a structural diagram of a communication device 160.
  • the communication device 160 may be a network device, or a chip in a network device, or a system on a chip.
  • the communication device 160 may be used to execute the network device involved in the above embodiment Function.
  • the communication device 160 shown in FIG. 16 includes: a generating unit 161 and a sending unit 162;
  • the generating unit 161 generates configuration information or instruction information.
  • the sending unit 162 is configured to send configuration information or indication information to the terminal; the terminal determines the first channel state information reference signal (CSI-RS) trigger offset value according to the configuration information or the indication information, where the first CSI-RS trigger offset value
  • the shift value is the time slot difference between the time slot of the PDCCH based power saving signal/chanel (PBPSS) and the time slot of the aperiodic CSI-RS triggered by the PBPSS Minimum value.
  • the sending unit 162 is also used to send the first PBPSS to the terminal; and is also used to send the first CSI-RS to the terminal; wherein, the time slot where the first PBPSS is located and the time slot where the first CSI-RS triggered by the first PBPSS is located The time slot difference between them is not less than the first CSI-RS trigger offset value.
  • PBPSS is used to indicate whether the terminal needs monitoring and scheduling during OnDuration before the activation period OnDuration of a discontinuous reception.
  • the communication device 160 shown in FIG. 16 includes: a processing module and a communication module.
  • the processing module is used to control and manage the actions of the communication device 160.
  • the processing module may integrate the functions of the generating unit 161.
  • the communication module may integrate the functions of the sending unit 162, for example, communication with the functional module shown in FIG. 6 or a network entity.
  • the communication device 160 may also include a storage module for storing program codes and data of the communication device 160.
  • the processing module may be a processor or a controller. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module can be a transceiver circuit or a communication interface.
  • the storage module may be a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device 160 involved in the embodiment of the present application may be the communication device shown in FIG. 7.
  • FIG. 17 is a structural diagram of a communication system provided by an embodiment of this application. As shown in FIG. 7, the communication system may include: multiple terminals 170 and network devices 171.
  • the network device 171 has similar functions to the communication device 160 shown in FIG. 16, and can be used to generate configuration information or instruction information.
  • the terminal 170 has a similar function to the communication device 150 shown in FIG. 15, and can be used to receive configuration information or indication information sent by the network device 171, and determine the first channel state information reference signal (CSI-RS) trigger offset value,
  • the first CSI-RS trigger offset value is based on the physical downlink control channel PDCCH power saving signal (PDCCH based power saving signal/chanel, PBPSS) where the time slot and the aperiodic CSI-RS triggered by the PBPSS are located The minimum time slot difference between time slots.
  • PDCCH power saving signal PDCCH based power saving signal/chanel, PBPSS
  • the network device 171 can also be used to send the first PBPSS to the terminal; it is also used to send the first CSI-RS to the terminal; wherein, the time slot where the first PBPSS is located is the time slot where the first CSI-RS triggered by the first PBPSS is located. The time slot difference between them is not less than the first CSI-RS trigger offset value.
  • the terminal 170 can determine the first CSI-RS trigger offset value, and the first CSI-RS trigger offset value is less than or equal to the time slot where the PDCCH-based power saving signal is located and the aperiodic triggered
  • the time slot difference between the time slots where the CSI-RS is located, so the first CSI-RS trigger offset value can also be understood as the time between the time slot where the PDCCH-based power saving signal is located and the aperiodic CSI-RS triggered The minimum time slot difference between slots.
  • the terminal can clearly know that the network device will not be within offset time slots after the time slot where the PDCCH-based power saving signal is sent by the network device.
  • the terminal does not need to buffer data during this period, so the terminal can turn off the radio frequency module to save power consumption.
  • the terminal can reduce code speed and processing voltage, thereby saving power consumption.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be other division methods for example, multiple units or components may be It can be combined or integrated into another device, or some features can be omitted or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate, and the parts displayed as a unit may be one physical unit or multiple physical units, which can be located in one place or distributed to multiple different places . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of software products, which are stored in a storage medium.
  • a device which may be a single-chip microcomputer, a chip, etc.
  • a processor processor
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil d'indication de paramètre de mesure d'état de canal permettant de réduire la consommation d'énergie d'un terminal. Le procédé comprend les étapes suivantes : un terminal détermine un premier décalage de déclenchement de signal de référence d'informations d'état de canal (CSI-RS), le premier décalage de déclenchement de CSI-RS étant la valeur minimale de la différence de créneau entre un créneau dans lequel un signal d'économie d'énergie basé sur un canal de commande de liaison descendante physique (PBPSS, canal/ signal d'économie d'énergie basé sur PDCCH) est situé et un créneau dans lequel un CSI-RS non périodique déclenché par le PBPSS est situé ; le terminal reçoit un premier PBPSS envoyé par un dispositif de réseau ; et le terminal reçoit un premier CSI-RS envoyé par le dispositif de réseau, la différence de créneau, entre un créneau dans lequel est situé le premier PBPSS et un créneau dans lequel est situé un premier CSI-RS déclenché par le premier PBPSS, n'étant pas inférieure au premier décalage de déclenchement de CSI-RS.
PCT/CN2020/096017 2019-06-15 2020-06-15 Procédé et appareil d'indication de paramètre de mesure d'état de canal WO2020253641A1 (fr)

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