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WO2023208166A1 - Procédé d'indication de synchronisation et appareil de communication - Google Patents

Procédé d'indication de synchronisation et appareil de communication Download PDF

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Publication number
WO2023208166A1
WO2023208166A1 PCT/CN2023/091451 CN2023091451W WO2023208166A1 WO 2023208166 A1 WO2023208166 A1 WO 2023208166A1 CN 2023091451 W CN2023091451 W CN 2023091451W WO 2023208166 A1 WO2023208166 A1 WO 2023208166A1
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WO
WIPO (PCT)
Prior art keywords
target
terminal device
timing
reference signal
network device
Prior art date
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Ceased
Application number
PCT/CN2023/091451
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English (en)
Chinese (zh)
Inventor
袁世通
樊波
李芳�
陈雷
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2023208166A1 publication Critical patent/WO2023208166A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent

Definitions

  • the present application relates to the field of communication technology, and specifically to a timing indication method and a communication device.
  • the network device can estimate the timing advance of the terminal device through the physical random access channel (PRACH) or the uplink sounding reference signal (SRS) of the terminal device, and respond through the random access response (random access response, RAR) or timing advance command (timing advance command, TAC) to notify the terminal device of the timing advance, so that the terminal device can use the timing advance to perform scheduled uplink transmission, so that the network device can correctly receive the terminal Uplink data sent by the device.
  • PRACH physical random access channel
  • SRS uplink sounding reference signal
  • RAR random access response
  • TAC timing advance command
  • terminal devices can only perform scheduled uplink transmission based on the timing advance that has been issued by a network device.
  • TRPs transmission reception points
  • the terminal The existing timing advance of the device cannot be used by the terminal device to communicate with multiple TRPs.
  • This application provides a timing indication method, which enables network equipment to promptly learn the timing out-of-range status of terminal equipment, so as to facilitate configuring appropriate uplink transmission timing for terminal equipment.
  • Embodiments of the present application also provide corresponding communication devices, communication systems, computer-readable storage media, computer program products, etc.
  • the first aspect of this application provides a method for timing indication, including:
  • the terminal device receives the first reference signal sent by the network device; the terminal device determines the target timing difference based on the first reference signal; the terminal device sends at least one of timing indication information and the target timing difference to the network device, and the timing indication information is used to indicate the target Whether the timing difference exceeds the timing range.
  • the terminal device sends at least one of the timing indication information and the target timing difference to the network device based on the target timing difference to notify the network device whether the target timing difference exceeds the timing range. If it is out of range, after the terminal device receives the first reference signal, the network device Then, the terminal device can be configured in advance with the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • TRPs transmission reception points
  • the method further includes: the terminal device measures the first reference signal to obtain a measurement report of the first reference signal; the above steps: the terminal device sends the timing indication information and the target to the network device At least one of the timing differences includes: the terminal device sends a measurement report of the first reference signal to the network device, and at least one of the timing indication information and the target timing difference is included in the measurement report.
  • the above provides some possible implementation methods for the terminal device to send at least one of the timing indication information and the target timing difference.
  • the measurement report Through the measurement report, at least one of the timing indication information and the target timing difference can be notified to the network device, preferably The measurement report is utilized, which saves the network overhead caused by sending at least one of the timing indication information and the target timing difference through separate signaling or messages.
  • At least one of the timing indication information and the target timing difference is carried in the first message; or, the timing indication information is carried in the first message, and the target timing difference is carried in the first message. Two messages in progress.
  • the above provides some possible implementation methods for the terminal device to send at least one of the timing indication information and the target timing difference.
  • the timing indication information and the target timing difference are notified to the network device through one message or two messages, so that there is no need to modify the current
  • the format of the measurement report can be added with the above-mentioned new function of notifying the network device whether the target timing difference exceeds the timing range, which facilitates the launch of new functions.
  • a second aspect of the present application provides a method for timing indication.
  • the method includes: a terminal device measuring a first reference signal sent by a network device; the terminal device determining a target timing difference based on the first reference signal; and the terminal device sending the first reference signal to the network device.
  • the measurement report/first message of the signal includes at least one of timing indication information and target timing difference, and the timing indication information is used to indicate whether the target timing difference exceeds the timing range.
  • a third aspect of the present application provides a method for timing indication.
  • the method includes: a terminal device measuring a first reference signal sent by a network device to determine a target timing difference; and the terminal device sending a measurement report/th of the first reference signal to the network device.
  • a message, the measurement report/first message includes at least one of timing indication information and target timing difference, and the timing indication information is used to indicate whether the target timing difference exceeds the timing range.
  • the terminal device sends at least one of timing indication information and target timing difference to the network device based on the target timing difference to notify the network device whether the target timing difference exceeds the timing range. If it is out of range, after the terminal device receives the first reference signal, the network device can configure in advance the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal for the terminal device. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • the fourth aspect of this application provides a method for timing indication, which method includes:
  • the terminal device measures the first reference signal sent by the network device; the terminal device sends a measurement report/first message to the network device, the measurement report/first message includes timing indication information, and the timing indication information is used to indicate the uplink determined based on the first reference signal. Whether the transmission timing is suitable for the uplink transmission of the terminal device in the first reference signal direction.
  • the terminal device may send timing indication information to the network device based on the measurement of the first reference signal to notify the network device whether the current first uplink transmission timing is suitable for use in the first reference signal. If uplink transmission in the signal direction is not applicable, after the terminal device receives the first reference signal, the network device can configure in advance the second uplink transmission timing for the terminal device that is suitable for uplink transmission in the direction of the first reference signal. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • the method further includes: the terminal device determines a target timing difference based on the first reference signal, and whether the target timing difference exceeds the timing range is used to indicate the uplink transmission timing determined based on the first reference signal. Whether it is applicable to the uplink transmission of the terminal equipment in the first reference signal direction.
  • the method further includes: the terminal device receives a second reference signal, and the second reference signal is transmitted from the network device to the terminal through a synchronization signal block (SSB).
  • the synchronization signal sent by the device, or the second reference signal and the first reference signal are a pair of signals received by the terminal device, and belong to different measurement resource sets.
  • the terminal device determines the target timing difference based on the first reference signal, including: the terminal device determines the reception timing difference between the first reference signal and the second reference signal as the target timing difference.
  • sending the synchronization signal to the terminal device through SSB can be understood as sending SSB to the terminal device.
  • the reception timing difference of the two reference signals can be quickly determined through the second reference signal that is a mutual reference to the first reference signal, and thus the target timing difference can be quickly determined.
  • the terminal device determines the target timing difference based on the first reference signal, including: determining the expected uplink timing difference of the first reference signal as the target timing difference.
  • the timing difference refers to the downlink synchronization time determined by the terminal equipment based on different downlink signals plus the current timing advance (timing advance, TA) when the airspace receiving filter that receives the first reference signal is used as the transmitting airspace filter for uplink transmission. ) is the time difference of the uplink timing obtained.
  • This possible implementation provides another way to quickly determine the target timing difference.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that: the current uplink transmission timing of the terminal device is not suitable for the uplink transmission of the terminal device on the target beam;
  • the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the uplink transmission of the terminal equipment on the target beam; where the target beam is the beam through which the terminal equipment receives the first reference signal.
  • the uplink transmission beam determined as a reference.
  • the target beam may be a beam that is the same or similar in direction to the beam that receives the first reference signal.
  • the uplink transmission timing determined based on the beam of the first reference signal can be better suitable for use in Uplink transmission on the target beam, thereby improving the success rate of uplink transmission on the target beam.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the airspace in which the terminal device will receive the first reference signal.
  • the reception filter is used as an air domain filter for uplink transmission; or, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the terminal equipment to receive the air domain reception filter of the first reference signal as Spatial filter for uplink transmission.
  • This possible implementation provides another way of expressing whether the target timing difference exceeds the timing range.
  • the method further includes: the terminal device receives from Configuration information of the network device.
  • the configuration information includes first indication information.
  • the first indication information is used to instruct the terminal device to report the target timing difference.
  • the terminal device can report the target timing difference according to the first instruction information of the network device in the configuration information, so that the network device can use the target timing difference to more accurately calculate the target timing difference suitable for the terminal device to perform on the target beam.
  • Uplink send timing for uplink send is
  • the configuration information also includes information associated with the first indication information, and the information associated with the first indication information includes an index of the SSB, a channel state information reference signal CSI- At least one index among the resource index of the RS and the index of the path loss reference signal; the information associated with the first indication information is used to instruct the terminal device to report the target timing difference when reporting a measurement report of the reference signal corresponding to at least one index.
  • the network device may also configure information associated with the first indication information in the configuration information, specifying the reference signal that needs to report the target timing difference. In this way, the terminal device can report the target timing difference only based on the specific reference signal based on the information associated with the first indication information, thereby achieving targeted reporting of the target timing difference.
  • the configuration information further includes quasi-colocation indication information, and the quasi-colocation indication information is used to instruct the terminal device to report a reference that has a quasi-colocation relationship with the reference signal corresponding to at least one index.
  • the target timing difference is reported.
  • the terminal device needs to report the target timing difference in a targeted manner according to the indication of the quasi-colocation indication information.
  • the method before the terminal device receives the configuration information from the network device, the method further includes: the terminal device reporting capability information to the network device, where the capability information includes at least one of the following: Whether the terminal equipment supports timing measurement based on downlink signals, the bandwidth of the first reference signal required by the terminal equipment for timing measurement based on downlink signals is greater than the preset threshold, whether the terminal equipment supports determining the target timing difference based on the first reference signal, whether the terminal equipment Support reporting the target timing difference in the measurement report, and whether the terminal device supports reporting the target timing difference.
  • the terminal device reports capability information to the network device, which is helpful for the network device to configure accordingly according to the capabilities of the terminal device. For example, only terminal devices with target timing difference reporting capabilities will be configured as described above. first indication information, etc., thereby realizing effective communication between the terminal device and the network device.
  • the timing indication information is represented by a 1-bit binary value.
  • the timing indication information is represented by a 1-bit binary value, such as 0 or 1, to indicate whether the target timing difference exceeds the timing range.
  • the corresponding instruction function is completed in a simple way and with the smallest bytes.
  • the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.
  • 2 bits or 3 bits can be used to indicate not only whether the target timing difference exceeds the timing range, but also how much the target timing difference is, such as how many cyclic prefixes (CPs) are exceeded.
  • CPs cyclic prefixes
  • two pieces of information are transmitted as a multi-bit binary value, which simplifies the representation of the timing indication information and the target timing difference.
  • the timing indication information is represented by a target capability value or a target capability value set, and the target capability value or target capability value set indicates whether the terminal device determines whether the target timing difference exceeds the timing.
  • capability values or capability values set (capability values set) describe the transmission capabilities of the terminal device.
  • antenna panels with different numbers of ports have different capability values or capability value sets. .
  • the number of antenna ports is usually fixed and does not change at any time when signals are received.
  • the capability value or capability value set of the same antenna panel with the same number of ports is usually the same.
  • This method uses the expression of ability value or ability value set. If it is determined that the target timing difference is out of range, the target ability value or target ability value set is modified. For example, the ability value originally expressed as 1 is changed to the previous initial value.
  • the reported capability value of the terminal device is represented by a value 3 that does not appear. In this way, the ability value or the ability value set can be used to express the timing indication information, and the expression method of the timing indication information is added.
  • the target capability value or target capability value set of the terminal device is a sounding reference signal (SRS) when the terminal device determines whether the target timing difference exceeds the timing range. ) port’s capability value or capability value set.
  • SRS sounding reference signal
  • the number of SRS ports can also be understood as the number of ports on the antenna panel of the terminal device.
  • the target capability values or target capability value sets of SRS ports with the same SRS port number do not simultaneously indicate that the target timing difference exceeds the timing range; or, the target timing difference exceeds the timing range; When the target capability values or target capability value sets of several SRS ports are the same, it indicates that the target timing difference does not exceed the timing range.
  • the measurement report contains multiple target capability values or multiple target capability value sets, there are at least two target capability values or at least two target capability value sets corresponding to the SRS of the SRS port. If the number of ports is the same, but the at least two target capability values or at least two target capability value sets are different, it may also indicate that the target timing difference is out of range.
  • the method before the terminal device sends at least one of the timing indication information and the target timing difference to the network device, the method further includes: the terminal device sends the terminal device to the network device
  • the initial capability value or initial capability value set of the terminal device is the capability value or capability value set of the SRS port when the terminal device establishes a communication connection with the network device.
  • the terminal device will report the initial capability value or the initial capability value set of the terminal device in advance, so that when the terminal device reports the target capability value or the target capability value set, the network device can compare the initial capability value and the set of target capability values.
  • the target ability value determines whether the target timing difference is out of range.
  • the target capability value is different from the initial capability value of the terminal device, or the target capability value set is different from the initial capability value set of the terminal device: used to indicate the target timing.
  • the difference exceeds the timing range; or the target capability value is equal to the initial capability value of the terminal device, or the target capability value set is equal to the initial capability value set of the terminal device: used to indicate that the target timing difference does not exceed the timing range.
  • the method further includes: the terminal device receives the target uplink transmission timing from the network device, and the target uplink transmission timing is determined by the network device when the target timing difference exceeds the range; The terminal device performs uplink transmission on the target beam according to the target uplink transmission timing.
  • the target beam is the uplink transmission beam determined by the terminal device using the beam that receives the first reference signal as a reference.
  • the terminal device after the terminal device receives the target uplink transmission timing, it can use the target uplink transmission timing to perform uplink transmission on the corresponding target beam, which can improve the success rate of uplink transmission in the direction of the target beam. .
  • a fifth aspect of the present application provides a method for timing indication, including: a network device sending a first reference signal to a terminal device; the network device receiving at least one of timing indication information from the terminal device and a target timing difference, where the target timing difference is The terminal device determines based on the first reference signal; the network device determines whether the target timing difference exceeds the timing range based on at least one of the timing indication information and the target timing difference.
  • the network device can determine whether the target timing difference exceeds the timing range based on at least one of the timing indication information from the terminal device and the target timing difference. If it exceeds the range, the network device receives the first reference After receiving the signal, the network device can configure in advance the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal for the terminal device. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • the network device receives at least one of the timing indication information and the target timing difference from the terminal device, including: the network device receives the first reference signal from the terminal device.
  • the measurement report, at least one of the timing indication information and the target timing difference is included in the measurement report.
  • At least one of the timing indication information and the target timing difference is carried in the first message; or, the timing indication information is carried in the first message, and the target timing difference is carried in the first message. Two messages in progress.
  • a sixth aspect of the present application provides a method for timing indication.
  • the method includes: a network device sends a first reference signal to a terminal device; the network device receives a measurement report/first message of the first reference signal from the terminal device, and the measurement report/ The first message includes at least one of the timing indication information and the target timing difference.
  • the target timing difference is determined by the terminal device based on the first reference signal; the network device determines the target timing according to at least one of the timing indication information and the target timing difference. Whether the difference exceeds the timing range.
  • the network device sends at least one of timing indication information and the target timing difference to the network device based on the target timing difference to determine whether the target timing difference exceeds the timing range. If it is out of range, after the terminal device receives the first reference signal, the network device can configure in advance the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal for the terminal device. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • a seventh aspect of the present application provides a method for timing indication.
  • the method includes: a network device sends a first reference signal to a terminal device; the network device receives a measurement report/first message of the first reference signal from the terminal device, the measurement report/ The first message includes timing indication information.
  • the timing indication information is used to indicate whether the uplink transmission timing determined based on the first reference signal is suitable for the uplink transmission of the terminal device in the first reference signal direction; the network device determines based on the first reference signal based on the timing indication information. Whether the uplink transmission timing determined by the reference signal is suitable for the uplink transmission of the terminal device in the first reference signal direction.
  • the network device can determine whether the current first uplink transmission timing of the terminal device is suitable for uplink transmission in the direction of the first reference signal based on the timing indication information. If it is not applicable, the terminal device receives the first uplink transmission timing. After receiving the reference signal, the network device can configure the terminal device in advance in a manner suitable for the first reference signal. The second uplink transmission timing is used for uplink transmission. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • the network device also receives a target timing difference from the terminal device. Whether the target timing difference exceeds the timing range is used to indicate whether the uplink transmission timing determined based on the first reference signal is suitable for the terminal. The device transmits uplink in the direction of the first reference signal.
  • the method further includes: when the target timing difference exceeds the timing range, the network device determines the target uplink transmission timing for the terminal device; the network device sends the target uplink transmission timing to the terminal device. Transmission timing, the target uplink transmission timing is used for the terminal device to transmit uplink on the target beam.
  • the target beam is the uplink transmission beam determined by the terminal device using the beam that receives the first reference signal as a reference.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that: the current uplink transmission timing of the terminal device is not suitable for the uplink transmission of the terminal device on the target beam;
  • the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the uplink transmission of the terminal equipment on the target beam; where the target beam is the beam through which the terminal equipment receives the first reference signal.
  • the uplink transmission beam determined as a reference.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the airspace where the terminal device will receive the first reference signal.
  • the reception filter is used as an air domain filter for uplink transmission; or, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the terminal equipment to receive the air domain reception filter of the first reference signal as Spatial filter for uplink transmission.
  • the method further includes:
  • the network device sends configuration information to the terminal device.
  • the configuration information includes first indication information.
  • the first indication information is used to instruct the terminal device to report the target timing difference.
  • the configuration information also includes information associated with the first indication information, and the information associated with the first indication information includes an index of the SSB, the channel state information reference signal CSI- At least one index among the resource index of the RS and the index of the path loss reference signal; the information associated with the first indication information is used to instruct the terminal device to report the target timing difference when reporting a measurement report of the reference signal corresponding to at least one index.
  • the configuration information further includes quasi-colocation indication information, and the quasi-colocation indication information is used to instruct the terminal device to report a reference that has a quasi-colocation relationship with the reference signal corresponding to at least one index.
  • the target timing difference is reported.
  • the method before the network device sends the configuration information to the terminal device, the method further includes: the network device receives capability information from the terminal device, where the capability information includes at least one of the following: Whether the terminal equipment supports timing measurement based on downlink signals, the bandwidth of the first reference signal required by the terminal equipment for timing measurement based on downlink signals is greater than the preset threshold, whether the terminal equipment supports determining the target timing difference based on the first reference signal, whether the terminal equipment Support reporting the target timing difference in the measurement report, and whether the terminal device supports reporting the target timing difference.
  • the timing indication information is a 1-bit binary number. value to represent.
  • the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.
  • the target capability values or target capability value sets of SRS ports with the same SRS port number do not simultaneously indicate that the target timing difference exceeds the timing range; or, having the same SRS port number When the target capability values or target capability value sets of several SRS ports are the same, it indicates that the target timing difference does not exceed the timing range.
  • the timing indication information is represented by a target capability value or a target capability value set, and the target capability value or target capability value set of the terminal device determines the target timing difference for the terminal device. Whether the detection reference signal SRS port capability value or capability value set exceeds the timing range; the network device determines whether the target timing difference exceeds the timing range based on at least one of the timing indication information and the target timing difference, including: the network device sets the target The capability value is compared with the initial capability value, or the network device compares the target capability value set with the initial capability value set, where the initial capability value or initial capability value set of the terminal device is the SRS when the terminal device establishes a communication connection with the network device.
  • the port's capability value or capability value set if the target capability value is different from the terminal device's initial capability value, or the target capability value set is different from the terminal device's initial capability value set, the network device determines that the target timing difference exceeds the timing range; if The target capability value is equal to the initial capability value of the terminal device, or the target capability value set is equal to the initial capability value set of the terminal device: then the network device determines that the target timing difference does not exceed the timing range.
  • An eighth aspect of the present application provides a communication device, which includes:
  • the transceiver module is configured to receive the first reference signal sent by the network device.
  • a processing module configured to determine a target timing difference based on the first reference signal.
  • the transceiver module is also configured to send at least one of timing indication information and target timing difference to the network device.
  • the timing indication information is used to indicate whether the target timing difference exceeds the timing range.
  • the processing module is also configured to measure the first reference signal to obtain a measurement report of the first reference signal.
  • the transceiver module is specifically configured to send a measurement report of the first reference signal to the network device. At least one of the timing indication information and the target timing difference is included in the measurement report.
  • At least one of the timing indication information and the target timing difference is carried in the first message; or, the timing indication information is carried in the first message, and the target timing difference is carried in the second message middle.
  • a ninth aspect of the present application provides a communication device, which includes:
  • a processing module configured to measure the first reference signal sent by the network device and determine the target timing difference based on the first reference signal.
  • a transceiver module configured to send a measurement report/first message of the first reference signal to the network device, where the measurement report/first message includes at least one of timing indication information and a target timing difference, and the timing indication information is used to indicate the target timing difference. Whether it exceeds the timing range.
  • a tenth aspect of the present application provides a communication device, which includes:
  • a processing module configured to measure the first reference signal sent by the network device to determine the target timing difference.
  • a transceiver module configured to send a measurement report/first message of the first reference signal to the network device, where the measurement report/first message includes at least one of timing indication information and a target timing difference, and the timing indication information is used to indicate the target timing difference. Whether it exceeds the timing range.
  • An eleventh aspect of the present application provides a communication device, which includes:
  • a processing module configured to measure the first reference signal sent by the network device.
  • a transceiver module configured to send a measurement report/first message of the first reference signal to the network device, where the measurement report/first message includes timing indication information, and the timing indication information is used to indicate whether the uplink transmission timing determined based on the first reference signal is applicable. Based on the uplink transmission of the terminal equipment in the direction of the first reference signal.
  • the processing module is further configured to determine a target timing difference based on the first reference signal, and whether the target timing difference exceeds the timing range is used to indicate the uplink transmission timing determined based on the first reference signal. Whether it is applicable to the uplink transmission of the terminal equipment in the first reference signal direction.
  • the processing module is specifically configured to determine the reception timing difference between the first reference signal and the second reference signal as the target timing difference; wherein, the second reference signal It is a synchronization signal sent by the network device to the terminal device through SSB, or the second reference signal and the first reference signal are a pair of signals that the terminal device starts receiving at the same time, and belong to different measurement resource sets.
  • the processing module is specifically configured to determine the expected uplink timing difference of the first reference signal as the target timing difference, where the expected uplink timing difference refers to the received
  • the processing module is specifically configured to determine the expected uplink timing difference of the first reference signal as the target timing difference, where the expected uplink timing difference refers to the received
  • the downlink synchronization time determined by the terminal device based on different downlink signals is added to the uplink timing time difference obtained by the current timing advance TA.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the uplink transmission of the terminal device on the target beam. ; Or, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the uplink transmission of the terminal equipment on the target beam; where the target beam is the terminal equipment to receive the first reference signal. The beam is used as the reference determined uplink transmission beam.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the time when the terminal device will receive the first reference signal.
  • the airspace receiving filter serves as an airspace filter for uplink transmission; alternatively, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the airspace receiving filter where the terminal equipment will receive the first reference signal.
  • a spatial filter for uplink transmission is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the time when the terminal device will receive the first reference signal.
  • the transceiver module is further configured to receive configuration information from the network device, where the configuration information includes first indication information, and the first indication information is used to instruct the terminal device to report Target timing difference.
  • the configuration information also includes information associated with the first indication information, and the information associated with the first indication information includes an index of the SSB, a channel state information reference signal CSI - at least one index among the resource index of the RS and the index of the path loss reference signal; the information associated with the first indication information is used to instruct the terminal device to report the target timing difference when reporting a measurement report of the reference signal corresponding to at least one index.
  • the configuration information also includes quasi-colocation indication information,
  • the quasi-colocation indication information is used to instruct the terminal device to report the target timing difference when reporting a measurement report of a reference signal that has a quasi-colocation relationship with the reference signal corresponding to at least one index.
  • the transceiver module is also used to receive configuration information from the network device.
  • the method further includes: the terminal device reports capability information to the network device, and the capability information includes At least one of the following: whether the terminal equipment supports timing measurement based on downlink signals, whether the bandwidth of the first reference signal required by the terminal equipment for timing measurement based on downlink signals is greater than the preset threshold, whether the terminal equipment supports determining target timing based on the first reference signal difference, whether the terminal device supports reporting the target timing difference in the measurement report, and whether the terminal device supports reporting the target timing difference.
  • the timing indication information is represented by a 1-bit binary value.
  • the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.
  • the timing indication information is represented by a target capability value or a target capability value set, and the target capability value or target capability value set indicates whether the terminal device determines whether the target timing difference exceeds The uplink transmission capability value or capability value set within the timing range.
  • the target capability value or target capability value set of the terminal device is the capability value or capability value of the SRS port when the terminal device determines whether the target timing difference exceeds the timing range. gather.
  • the target capability values or target capability value sets of SRS ports with the same SRS port number do not simultaneously indicate that the target timing difference exceeds the timing range; or, having the same SRS port number does not indicate that the target timing difference exceeds the timing range.
  • the target capability values or target capability value sets of the SRS ports of the port number are the same, it indicates that the target timing difference does not exceed the timing range.
  • the transceiver module is also configured to send the initial capability value or initial capability value set of the terminal device to the network device; wherein the initial capability value or initial capability value set of the terminal device
  • the capability value set is the capability value or capability value set of the SRS port when the terminal device establishes a communication connection with the network device.
  • the target capability value is different from the initial capability value of the terminal device, or the target capability value set is different from the initial capability value set of the terminal device: used to indicate the target The timing difference exceeds the timing range; or the target capability value is equal to the initial capability value of the terminal device, or the target capability value set is equal to the initial capability value set of the terminal device: used to indicate that the target timing difference does not exceed the timing range.
  • the transceiver module is also used to receive the target uplink transmission timing from the network device, and the target uplink transmission timing is determined by the network device when the target timing difference exceeds the range;
  • the terminal device performs uplink transmission on the target beam according to the target uplink transmission timing.
  • the target beam is the uplink transmission beam determined by the terminal device using the beam that receives the first reference signal as a reference.
  • the transceiver module is used to perform the operations of receiving and sending in any one of the first to fourth aspects, and any implementation manner.
  • the processing module is configured to perform operations as processed in any one of the first to fourth aspects, and any implementation manner.
  • a twelfth aspect of the present application provides a communication device, which includes:
  • a transceiver module configured to send a first reference signal to the terminal device, and receive at least one of timing indication information and a target timing difference from the terminal device.
  • the target timing difference is determined by the terminal device based on the first reference signal.
  • a processing module configured to determine whether the target timing difference exceeds the timing range based on at least one of the timing indication information and the target timing difference.
  • the transceiver module is specifically configured to receive a measurement report of the first reference signal from the terminal device, and at least one of the timing indication information and the target timing difference is included in the measurement report .
  • At least one of the timing indication information and the target timing difference is carried in the first message; or, the timing indication information is carried in the first message, and the target timing difference is carried in the first message. In the second message.
  • a thirteenth aspect of the present application provides a communication device, which includes:
  • a transceiver module configured to send a first reference signal to a terminal device, and receive a measurement report/first message of the first reference signal from the terminal device, where the measurement report/first message includes at least one of timing indication information and a target timing difference. Item, the target timing difference is determined by the terminal device based on the first reference signal.
  • a processing module configured to determine whether the target timing difference exceeds the timing range based on at least one of the timing indication information and the target timing difference.
  • a fourteenth aspect of the present application provides a communication device, which includes:
  • a transceiver module configured to send a first reference signal to a terminal device and receive a measurement report/first message of the first reference signal from the terminal device.
  • the measurement report/first message includes timing indication information, and the timing indication information is used to indicate based on Whether the uplink transmission timing determined by the first reference signal is suitable for the uplink transmission of the terminal device in the direction of the first reference signal.
  • a processing module configured to determine, according to the timing indication information, whether the uplink transmission timing determined based on the first reference signal is suitable for the uplink transmission of the terminal device in the direction of the first reference signal.
  • the transceiver module is also configured to receive a target timing difference from the terminal device. Whether the target timing difference exceeds the timing range is used to indicate the uplink transmission timing determined based on the first reference signal. Whether it is applicable to the uplink transmission of the terminal equipment in the first reference signal direction.
  • the processing module is also used to determine the target uplink transmission timing for the terminal device when the target timing difference exceeds the timing range.
  • the transceiver module is also used to send the target uplink transmission timing to the terminal equipment.
  • the target uplink transmission timing is used for the uplink transmission of the terminal equipment on the target beam.
  • the target beam is the uplink transmission determined by the terminal equipment using the beam that receives the first reference signal as a reference. beam.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal equipment is not suitable for the terminal equipment on the target beam. uplink transmission; or, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the uplink transmission of the terminal equipment on the target beam; where the target beam is the terminal equipment to receive the first The beam of the reference signal is used as the reference determined uplink transmission beam.
  • the timing indication information is used to indicate that the target timing difference is out of range, indicating that the current uplink transmission timing of the terminal device is not suitable for the terminal device to receive the first
  • the airspace reception filter of the reference signal is used as the airspace filter for uplink transmission; or, the timing indication information is used to indicate that the target timing difference does not exceed the range, indicating that the current uplink transmission timing of the terminal equipment is suitable for the airspace where the terminal equipment will receive the first reference signal.
  • the receive filter serves as a spatial filter for uplink transmission.
  • the transceiver module is also configured to send configuration information to the terminal device.
  • the configuration information includes first indication information, and the first indication information is used to instruct the terminal device to report the target timing difference.
  • the configuration information also includes information associated with the first indication information, and the information associated with the first indication information includes the index of the SSB, the channel state information At least one index among the resource index of the reference signal CSI-RS and the index of the path loss reference signal; the information associated with the first indication information is used to instruct the terminal device to report the target timing when reporting a measurement report of the reference signal corresponding to at least one index. Difference.
  • the configuration information also includes quasi-colocation indication information, and the quasi-colocation indication information is used to instruct the terminal device to report that the reference signal corresponding to at least one index has quasi-colocation.
  • the target timing difference is reported.
  • the transceiver module is also used to receive capability information from the terminal device.
  • the capability information includes at least one of the following: whether the terminal device supports timing measurement based on downlink signals, and the bandwidth of the first reference signal required by the terminal device for timing measurement based on downlink signals. Greater than the preset threshold, whether the terminal device supports determining the target timing difference based on the first reference signal, whether the terminal device supports reporting the target timing difference in the measurement report, and whether the terminal device supports reporting the target timing difference.
  • the timing indication information is represented by a 1-bit binary value.
  • the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.
  • the timing indication information is represented by a target capability value or a target capability value set
  • the target capability value or target capability value set of the terminal device is the terminal device.
  • the capability value or capability value set of the sounding reference signal SRS port when determining whether the target timing difference exceeds the timing range.
  • the target capability values or target capability value sets of SRS ports with the same number of SRS ports do not simultaneously indicate that the target timing difference exceeds the timing range; or, When the target capability values or target capability value sets of SRS ports with the same SRS port number are the same, it indicates that the target timing difference does not exceed the timing range.
  • the processing module is specifically used to compare the target capability value with the initial capability value, or the network device compares the target capability value set with the initial capability Value sets are compared, where the initial capability value or initial capability value set of the terminal device is the capability value or capability value set of the SRS port when the terminal device establishes a communication connection with the network device; if the target capability value is different from the initial capability value of the terminal device , or the target capability value set is different from the terminal device's initial capability value set, then the network device determines that the target timing difference exceeds the timing range; if the target capability value is equal to the terminal device's initial capability value, or the target capability value set is equal to the terminal Initial capability value set of the device: The network device determines that the target timing difference does not exceed the timing range.
  • the transceiver module is used to perform the receiving and sending in any one of the fifth aspect to the seventh aspect, and any implementation manner.
  • the processing module is configured to perform operations processed in any one of the fifth to seventh aspects, and any implementation manner.
  • a fifteenth aspect of the present application provides a communication device, which includes: a processor, a memory, and a transceiver.
  • Computer programs or computer instructions are stored in the memory, and the processor is used to call and run the programs stored in the memory.
  • the computer program or the computer instructions enable the processor to implement any one of the first to fourth aspects, and the operations processed by any implementation method, and the transceiver is used to send and receive signals, such as: to implement the first to fourth aspects. Any of the four aspects, and receive and send operations in either implementation.
  • a sixteenth aspect of the present application provides a communication device, which includes: a processor, a memory, and a transceiver.
  • Computer programs or computer instructions are stored in the memory, and the processor is used to call and run the computer program or computer instructions stored in the memory, so that the processor implements any one of the fifth to seventh aspects, and any An implementation handles an operation in which a transceiver is used to send and receive signals, such as: implementing any one of the fifth to seventh aspects, and the operations of receiving and transmitting in any implementation.
  • a seventeenth aspect of the present application provides a communication device.
  • the communication device includes a processor, and the processor is configured to execute any implementation manner of any one of the first to fourth aspects.
  • An eighteenth aspect of the present application provides a communication device.
  • the communication device includes a processor, and the processor is configured to execute any implementation manner of any one of the fifth to seventh aspects.
  • a nineteenth aspect of the present application provides a computer program product including instructions, which when run on a computer causes the computer to execute any one of the first to fourth aspects, and any one of Method to realize.
  • a twentieth aspect of the present application provides a computer program product including instructions, which when run on a computer causes the computer to execute any one of the fifth to seventh aspects, and any one of the following: Method to realize.
  • a twenty-first aspect of the present application provides a computer-readable storage medium, including computer instructions. When the instructions are run on a computer, they cause the computer to execute any one of the first to fourth aspects, and any one of the following: Method to realize.
  • a twenty-second aspect of the present application provides a computer-readable storage medium, including computer instructions. When the instructions are run on a computer, they cause the computer to execute any one of the fifth to seventh aspects, and any one of the following: Method to realize.
  • a twenty-third aspect of the present application provides a chip device, including a processor for calling a computer program or computer instructions in the memory, so that the processor executes any one of the above-mentioned first to fourth aspects, and Any implementation method.
  • the processor is coupled to the memory through an interface.
  • a twenty-fourth aspect of the present application provides a chip device, including a processor for calling a computer program or computer instructions in the memory, so that the processor executes any one of the fifth to seventh aspects, and Any implementation method.
  • the processor is coupled to the memory through an interface.
  • a twenty-fifth aspect of the present application provides a communication system.
  • the communication system includes, for example, a terminal device and a network device.
  • the terminal device is used to perform any one of the above-mentioned first to fourth aspects, and any implementation manner;
  • the network device is used to perform any one of the above fifth to seventh aspects, and any implementation manner.
  • a twenty-sixth aspect of the present application provides a method for reporting information, including: a terminal device receiving a first reference signal from a target cell; and the terminal device determining whether to report at least one of the following information to the serving cell based on the first reference signal: Whether a measurement gap, a measurement gap, or a target time difference is needed.
  • the measurement gap is used by the terminal equipment to measure the target cell or the reference signal of the target cell.
  • the target time difference is the signal reception time difference and the signal arrival time. Difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal device receiving the signal from the target cell and the serving cell.
  • the signal arrival time difference is the time difference between the signal from the serving cell and the signal from the target cell reaching the terminal device.
  • the synchronization time difference is the time difference between the signal from the serving cell and the signal from the target cell. The time difference between the synchronization signal and the synchronization signal of the target cell.
  • the target cell may be a neighboring cell of the serving cell, and the terminal device may determine whether it is necessary based on the measurement of the first reference signal of the neighboring cell, the reception of the first reference signal, or the measurement result of the first reference signal. Measurement gap. If you need to measure the gap, you can also determine the specific value of the measurement gap or the target time difference, and then report at least one of these pieces of information to the serving cell. In this way, the serving cell can perform signal control based on the corresponding information received. , for example: within the measurement gap, the serving cell will suspend sending data or signals to the terminal device, or suspend receiving data or signals from the terminal device, thereby improving the accuracy of communication between the terminal device and the serving cell.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the terminal device determines whether to report at least one of the following information to the serving cell based on the first reference signal, including: the terminal device determines whether to report the following information to the serving cell based on the first reference signal and the target information.
  • At least one item of the target information includes the downlink timing difference between the serving cell and the target cell, the downlink timing of the serving cell, and at least one of the second reference signal.
  • the second reference signal is the reference signal of other cells except the target cell. .
  • the second reference signal is a tracking reference signal (TRS), through a synchronization signal block (synchronization signal).
  • TRS tracking reference signal
  • SSB synchronization signal block
  • channel status information reference signal channel status information reference signal
  • the method also includes: when there is a conflict between the execution of the first item and the second item, the terminal device executes the item with a higher priority based on the optimization relationship between the first item and the second item.
  • One item is to perform the measurement of the periodic first reference signal of the target cell according to the measurement gap, and the second item is to send or receive the target resource or target signal of the serving cell.
  • the target cell can periodically send the first reference signal. After the terminal device determines whether a measurement gap is needed based on the first reference signal of the previous cycle, if the serving cell configures a corresponding measurement gap for the terminal device, In the following period, the terminal equipment can measure the first reference signal of the following period according to the measurement gap.
  • the target resource or target channel can be a special resource or special channel, such as: it can be SSB, periodic CSI-RS, periodic uplink control channel (physical uplink control channel, PUCCH), associated downlink control channel Type0- (physical downlink control channel, PDCCH ), CSS COERSET, random access channel (PRACH) resources, sounding reference (sounding reference, SR) resources. For example: when the measurement of the periodic first reference signal according to the measurement gap overlaps with the transmission or reception of one or more of the above channels/signals, the measurement gap becomes invalid and priority is given to the reception or transmission of signals of special resources or special channels. .
  • the method further includes: after the terminal device switches from the serving cell to the target cell, reporting to the target cell whether at least one of a measurement gap, a measurement gap, or a target time difference is required.
  • the target cell becomes the current serving cell
  • the terminal device can update at least one of the previously saved measurement gaps, measurement gaps, or target time differences. Report to the current serving cell, thereby facilitating the current serving cell to accurately communicate with the terminal device.
  • the method before the terminal device receives the first reference signal from the target cell, the method further includes: the terminal device reporting capability information to the serving cell, where the capability information includes at least one of the following: whether the terminal device requires a measurement gap; Whether the terminal device supports reporting measurement gaps, and whether the terminal device supports reporting the threshold value of the measurement gap.
  • the terminal device reports whether a measurement gap is needed or reports a measurement gap, including: when the target time difference is greater than a threshold value of the measurement gap, the terminal device reports the need for a measurement gap or reports a measurement gap.
  • the measurement gap when there is a threshold value for the measurement gap, it can be determined whether to report the measurement gap based on the comparison result between the target time difference and the threshold value. If the target time difference is less than the threshold value, the measurement gap does not need to be reported. The target time difference is reported only when it is greater than the threshold value. In this way, the communication between the terminal device and the serving cell will not be stopped due to a very small target time difference.
  • the twenty-seventh aspect of this application provides a method for reporting information, including:
  • the network device receives at least one of the following information reported by the terminal device: whether a measurement gap, a measurement gap, or a target time difference is required, where the measurement gap is used by the terminal device to measure the target cell or the reference signal of the target cell, and the target time difference It is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal equipment receiving the signal from the target cell and the serving cell.
  • the signal arrival time difference is the time difference between the signal of the serving cell and the signal of the target cell reaching the terminal equipment.
  • the synchronization time difference is the time difference between the synchronization signal of the serving cell and the synchronization signal of the target cell; the network device communicates with the terminal device according to whether at least one of the measurement gap, the measurement gap, or the target time difference is required.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the method further includes: the network device receives capability information reported by the terminal device, and the capability information includes at least one of the following: whether the terminal device requires a measurement gap, whether the terminal device supports reporting of measurement gaps, and whether the terminal device Supports reporting of threshold values for measurement gaps.
  • a twenty-eighth aspect of this application provides a communication device, which includes:
  • a transceiver module configured to receive the first reference signal from the target cell
  • a processing module configured to determine, based on the first reference signal, whether to report at least one of the following information to the serving cell: whether a measurement gap, a measurement gap, or a target time difference is required, where the measurement gap is used by the terminal device to perform a measurement on the target cell or on the target.
  • the reference signal of the cell is measured.
  • the target time difference is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal device receiving the signal from the target cell and the serving cell.
  • the signal arrival time difference is the signal sum of the serving cell.
  • the time difference between the signal of the target cell and the terminal equipment is the time difference between the synchronization signal of the serving cell and the synchronization signal of the target cell.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the processing module is specifically configured to determine whether to report at least one of the following information to the serving cell based on the first reference signal and target information.
  • the target information includes the downlink timing difference between the serving cell and the target cell, service
  • the downlink timing of the cell, the second reference signal is the reference signal of other cells except the target cell.
  • the processing module is also used to, when the execution of the first item and the second item conflict, the terminal device executes the item with a higher priority based on the optimization relationship between the first item and the second item.
  • the first item is to perform the measurement of the periodic first reference signal of the target cell according to the measurement gap
  • the second item is to send or receive the target resource or target signal of the serving cell.
  • the transceiver module is also used to report to the target cell whether at least one of a measurement gap, a measurement gap, or a target time difference is needed after switching from the serving cell to the target cell.
  • the transceiver module is also configured to report capability information to the serving cell before receiving the first reference signal from the target cell.
  • the capability information includes at least one of the following: whether the terminal device requires a measurement gap; Whether the reporting of measurement gaps is supported, and whether the terminal device supports reporting of the threshold value of the measurement gaps.
  • the transceiver module is also used to report the measurement gap when the target time difference is greater than the threshold value of the measurement gap.
  • a twenty-ninth aspect of the present application provides a communication device, which includes:
  • the transceiver module is configured to receive at least one of the following information reported by the terminal device: whether a measurement gap is required, a measurement gap, or a target time difference, where the measurement gap is used by the terminal device to measure the target cell or the reference signal of the target cell.
  • the target time difference is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal device receiving the signal from the target cell and the serving cell.
  • the signal arrival time difference is the signal from the serving cell and the signal from the target cell reaching the terminal.
  • the time difference of the device, the synchronization time difference is the time difference between the synchronization signal of the serving cell and the synchronization signal of the target cell.
  • a processing module configured to communicate with the terminal device according to whether at least one of a measurement gap, a measurement gap, or a target time difference is required.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the transceiver module is also used to receive capability information reported by the terminal device.
  • the capability information includes at least one of the following: whether the terminal device requires a measurement gap, whether the terminal device supports reporting of measurement gaps, and whether the terminal device supports The threshold value for reporting the measurement gap.
  • a thirty-second aspect of this application provides a communication device, which includes: a processor, a memory, and a transceiver.
  • the memory stores computer programs or computer instructions
  • the processor is used to call and run the computer programs or computer instructions stored in the memory, so that the processor implements any one of the twenty-sixth aspect and the twenty-sixth aspect.
  • the operations processed in the method, the transceiver is used to send and receive signals, such as: implementing the operations of receiving and transmitting as in the twenty-sixth aspect and any one of the implementation methods of the twenty-sixth aspect.
  • a thirty-first aspect of this application provides a communication device, which includes: a processor, a memory, and a transceiver.
  • the memory stores computer programs or computer instructions
  • the processor is used to call and run the computer programs or computer instructions stored in the memory, so that the processor implements any one of the twenty-seventh aspect and the twenty-seventh aspect.
  • the operations processed in the method, the transceiver is used to send and receive signals, such as: implementing the operations of receiving and sending in any one of the implementation methods of the twenty-seventh aspect and the twenty-seventh aspect.
  • the thirty-second aspect of the present application provides a computer program product including instructions that, when run on a computer, cause the computer to execute the steps in any one of the twenty-sixth aspect and the twenty-sixth aspect. .
  • the thirty-third aspect of the present application provides a computer program product including instructions that, when run on a computer, cause the computer to execute the steps in any one of the twenty-seventh aspect and the twenty-seventh aspect. .
  • the thirty-fourth aspect of this application provides a computer-readable storage medium, including computer instructions.
  • the instructions When the instructions are run on a computer, the computer executes the twenty-sixth aspect and any one of the implementation methods of the twenty-sixth aspect. steps in.
  • the thirty-fifth aspect of this application provides a computer-readable storage medium, including computer instructions.
  • the instructions When the instructions are run on a computer, the computer executes the twenty-seventh aspect and any one of the implementation methods of the twenty-seventh aspect. steps in.
  • a thirty-sixth aspect of the present application provides a chip device, including a processor for calling a computer program or computer instructions in the memory, so that the processor executes any one of the twenty-sixth aspect and the twenty-sixth aspect. steps in an implementation approach.
  • the processor is coupled to the memory through an interface.
  • a thirty-seventh aspect of the present application provides a chip device, including a processor for calling a computer program or computer instructions in the memory, so that the processor executes the twenty-seventh aspect and any of the twenty-seventh aspects. steps in an implementation.
  • the processor is coupled to the memory through an interface.
  • the thirty-eighth aspect of the present application provides a communication system.
  • the communication system includes, for example, a terminal device and a network device.
  • the terminal device is used to perform the steps in the above-mentioned twenty-sixth aspect and any one of the implementation methods of the twenty-sixth aspect.
  • the network device is used to perform the steps in the above-mentioned twenty-seventh aspect and any one of the implementation methods of the twenty-seventh aspect.
  • the terminal device can determine the target timing difference based on the first reference signal, and then send at least one of the timing indication information and the target timing difference to the network device to notify the network Whether the device target timing difference exceeds the timing range. If it is out of range, after the terminal device receives the first reference signal, the network device can configure in advance the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal for the terminal device. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmission of the terminal device in different directions in a multipoint communication scenario can be correctly received by the corresponding network device.
  • Figure 1A is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • Figure 1B is another schematic structural diagram of a communication system provided by an embodiment of the present application.
  • Figure 1C is another schematic structural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of an embodiment of a timing indication method provided by an embodiment of the present application.
  • Figure 3A is a schematic diagram of an example of the reporting form of the measurement report provided by the embodiment of the present application.
  • Figure 3B is a schematic diagram of another example of the reporting form of the measurement report provided by the embodiment of the present application.
  • Figure 4 is a schematic diagram of another example of the reporting form of the measurement report provided by the embodiment of the present application.
  • Figure 5A is a schematic diagram showing a capability value of an antenna panel in a terminal device
  • Figure 5B is a schematic diagram showing another capability value of the antenna panel in the terminal device provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of another embodiment of the timing indication method provided by the embodiment of the present application.
  • FIG. 7 is a schematic diagram of another embodiment of the timing indication method provided by the embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 9 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 10 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 11 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 12 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Embodiments of the present application provide a method for timing indication, so that network equipment can promptly learn the timing out-of-range status of terminal equipment, so as to facilitate configuring appropriate uplink transmission timing for terminal equipment.
  • Embodiments of the present application also provide corresponding equipment, communication systems, computer-readable storage media, computer program products, etc. Each is explained in detail below.
  • 5G fifth generation
  • LTE long term evolution
  • FDD Frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • 5G network for example, 6G mobile communication system
  • V2X vehicle to everything
  • the communication system applicable to this application includes terminal equipment and network equipment. Communication transmission between network equipment and terminal equipment is carried out through beams.
  • the terminal equipment and network equipment of this application are introduced below.
  • the terminal device may be a wireless terminal device capable of receiving network device scheduling and indication information.
  • a wireless end device may refer to a device that provides voice and/or data connectivity to a user, or a handheld device with wireless connectivity capabilities, or other processing device connected to a wireless modem.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • Devices such as handheld devices with wireless connection capabilities, or vehicle-mounted devices.
  • terminal devices are: mobile phones, tablets, laptops, PDAs, and mobile Internet devices.
  • MID mobile internet device
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in the Internet of Vehicles Wireless terminals in self-driving, wireless terminals in smart grid, wireless terminals in transportation safety, smart cities wireless terminals in a city, or wireless terminals in a smart home, etc.
  • wireless terminals in the Internet of Vehicles can be vehicle-mounted equipment, vehicle equipment, vehicle-mounted modules, vehicles, etc.
  • Wireless terminals in industrial control can be cameras, robots, etc.
  • Wireless terminals in smart homes can be TVs, air conditioners, sweepers, speakers, set-top boxes, etc.
  • Network devices can be devices in a wireless network.
  • a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices.
  • the network device may be a radio access network (RAN) node that connects the terminal device to the wireless network, and may also be called an access network device.
  • RAN radio access network
  • Network equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (BSC) , base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can also be used in 5G mobile communication systems network equipment.
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • BTS home base station
  • BBU baseband unit
  • WIFI wireless fidelity
  • AP wireless relay node
  • TP transmission point
  • TRP transmission and reception point
  • next generation base station (next generation NodeB, gNB), transmission reception point (TRP), transmission point (TP) in the new radio (NR) system; or 5G mobile communication system
  • gNB next generation base station
  • TRP transmission reception point
  • TP transmission point
  • the network device may also be a network node that constitutes a gNB or a transmission point.
  • BBU baseband unit
  • DU distributed unit
  • gNB may include centralized units (CUs) and DUs.
  • the gNB may also include an active antenna unit (AAU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (physical, PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical layer
  • the network device may be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), or the CU can be divided into network equipment in the core network (core network, CN), which is not limited in this application.
  • Beam is a communication resource.
  • the beam can be a wide beam, a narrow beam, or other Type beam
  • the beam forming technology can be beam forming technology or other technical means.
  • Beamforming technology can be specifically digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources.
  • the beam in the NR protocol can be called spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting (spatial setting), quasi-colocation (QCL) information, QCL assumption, or QCL indication, etc.
  • the beam can be indicated by the transmission configuration indicator state (TCI-state) TCI-state parameter, or by the spatial relation parameter. Therefore, in this application, the beam can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (including uplink TCI-state, downlink TCI-state). TCI-state), or spatial relationship, etc.
  • TCI-state including uplink TCI-state, downlink TCI-state
  • TCI-state TCI-state
  • the above terms are also equivalent to each other. Beam can also be replaced by other terms indicating beam, which is not limited in this application.
  • the beam used to transmit signals can be called transmission beam (transmission beam, Tx beam), spatial domain transmission filter (spatial domain transmission filter), spatial transmission filter (spatial transmission filter), spatial domain transmission parameter (spatial domain transmission parameter), spatial transmission parameter, spatial domain transmission setting, or spatial transmission setting.
  • the downlink transmit beam can be indicated by TCI-state.
  • the beam used to receive the signal may be called a reception beam (reception beam, Rx beam), spatial domain reception filter (spatial domain reception filter), spatial reception filter (spatial reception filter), spatial domain reception parameter (spatial domain reception parameter) or spatial reception parameter, spatial domain reception setting, or spatial reception setting.
  • the uplink transmit beam can be indicated by any one of spatial relationships, uplink TCI-state, and channel sounding reference signal (sounding reference signal, SRS) resources (indicating the transmit beam using the SRS). Therefore, the uplink beam can also be replaced by SRS resources.
  • the transmitting beam may refer to the distribution of signal strength in different directions in space after the signal is emitted by the antenna
  • the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • Quasi-co-location Co-location relationship is used to indicate that multiple resources have one or more identical or similar communication characteristics. For multiple resources with co-location relationships, The same or similar communication configuration can be used. For example, if two antenna ports have a co-located relationship, then the large-scale characteristics of the channel transmitting a symbol at one port can be inferred from the large-scale characteristics of the channel transmitting a symbol at the other port.
  • Large-scale characteristics may include: delay spread, average delay, Doppler spread, Doppler frequency shift, average gain, reception parameters, terminal equipment receive beam number, transmit/receive channel correlation, receive angle of arrival, receiver antenna Spatial correlation, main angle of arrival (angel-of-arrival, AoA), average angle of arrival, expansion of AoA, etc.
  • uplink communication includes the transmission of uplink physical channels and uplink signals.
  • the uplink physical channels include random access channel (PRACH), uplink control channel (physical uplink control channel, PUCCH), Uplink data channel (physical uplink shared channel, PUSCH), etc.
  • the uplink signals include channel sounding signal SRS, uplink control channel demodulation reference signal (PUCCH de-modulation reference signal, PUCCH-DMRS), uplink data channel demodulation reference signal (PUSCH) de-modulation reference signal (PUSCH-DMRS), uplink phase noise tracking reference signal (PTRS), uplink positioning signal (uplink positioning RS), etc.
  • Downlink communication includes downlink physical channels and transmission of downlink signals.
  • the downlink physical channels include broadcast channel (physical broadcast channel, PBCH), downlink control channel (physical downlink control channel, PDCCH), downlink data channel (physical downlink shared channel, PDSCH), etc.
  • downlink signals include primary synchronization signal (primary synchronization signal).
  • PSS for short
  • SSS secondary synchronization signal
  • PDCCH de-modulation reference signal PDCCH-DMRS
  • PDSCH de-modulation reference signal downlink data channel demodulation reference signal
  • PDSCH-DMRS phase noise tracking signal
  • CSI-RS channel status information reference signal
  • CRS cell reference signal
  • TRS time/frequency tracking reference signal
  • positioning RS positioning signal
  • Transmission configuration indicator The upper layer of the protocol configures QCL through TCI-state.
  • the parameters of TCI-state are used to configure a quasi-co-location relationship between one or two downlink reference signals and the DMRS of PDSCH.
  • DCI downlink control information
  • Transmission reception point (About TRP: 3GPP TR 38.912 defines: Antenna array with one or more antenna elements available to the network located at a specific geographical location for a specific area.).
  • a network node such as a base station
  • TRP Transmission reception point
  • the concept of TRP is generally introduced in 5G.
  • TRP is equivalent to the traditional base station, but in some cases, a cell may be covered by more than one TRP, but jointly covered by multiple TRPs, thereby increasing the coverage radius of the cell and greatly reducing the constant switching of terminals on the cell.
  • Antenna panel which can be the antenna panel of network equipment or the antenna panel of terminal equipment. There are usually one or more antennas on an antenna panel. These antennas are arranged into an antenna array for beamforming to form simulated beams. The antenna array can generate simulated beams pointed in different directions. That is to say, multiple analog beams can be formed on each antenna panel, and beam measurements can be used to determine which analog beam is the best for the antenna panel.
  • Terminal equipment can be equipped with multiple antenna panels. These antenna panels can be distributed in different locations and facing different directions. This can ensure that no matter which direction the terminal equipment is facing, at least one antenna panel is facing the network equipment and can communicate with the network equipment. Perform data transfer. The terminal equipment can turn on all antenna panels at the same time for transmission.
  • the terminal equipment can also use only a single antenna panel for transmission at a time, and other unused antenna panels can be turned off. Whether the antenna panel of the terminal device is in an open or closed state generally needs to be notified to the network device. That is to say, the terminal device and the network device generally need to exchange status information of the antenna panel.
  • the antenna panel refers to the antenna panel of the terminal device.
  • the antenna panel may also be represented by an antenna panel index (panel index) or the like.
  • the antenna panel can also pass through the antenna port (such as CSI-RS port, SRS port, demodulation reference signal (DMRS) port, phase tracking reference signal (PTRS) port, CRS port, time-frequency tracking reference signal (tracking reference signal, TRS) port, synchronization signal block (SSB) port, etc.) or antenna port group can also be characterized by resources (such as CSI-RS resources, SRS resources , DMRS resources, PTRS resources, cell reference signal (CRS) resources, TRS resources, SSB resources, etc.) or resource groups, or can also be characterized by a certain channel (such as PUCCH, PUSCH, physical random access channel (physical random access channel, PRACH), PDSCH, physical downlink control channel (physical downlink control channel
  • Capability value set It is also called capability values in some places, and both express the same meaning.
  • the terminal equipment may have multiple antenna panels. If the terminal equipment rotates, etc., the terminal equipment needs a mechanism to report that panel switching has occurred at the base station. Since terminal equipment manufacturers do not want to directly expose the panel to the network or have the terminal equipment panel controlled by the network, the capability value set was standardized in the final standard compromise. It is a logical concept, and its content in the current protocol is a capability-the maximum number of sounding reference signal ports (sounding reference signal, SRS port). It can be understood that if multiple panels of the terminal device have the same number of supported SRS ports, they will use the corresponding capability value ID.
  • SRS port sounding reference signal
  • this ability value/ability value set may further include more content.
  • each measurement report can include a capability value ID. If the terminal equipment's previous and later measurement reports for a reference signal are associated with different capability value IDs (that is, associated with different SRS port numbers), the base station can realize that the terminal equipment uses different panels for measurement.
  • Timing advance There is a delay in signal transmission in space. The farther away the terminal device is from the network device, the greater the delay for the signal to reach the network device. The distance between different terminal devices and the network device is different, so the time difference for signals sent by different terminal devices to reach the network device is also different. In this way, when the terminal device receives the downlink signal sent by the network device and then sends the uplink signal, it will reach the network device at different times.
  • network equipment In order to ensure the orthogonality of uplink transmission and avoid intra-cell interference, network equipment requires that signals from the same subframe but different frequency domain resources arrive at the network equipment at basically aligned times, as long as they fall within the cyclic prefix (CP) range can correctly receive the uplink data sent by the terminal device. Therefore, the uplink transmission of the terminal device requires timing advance, and the timing advance of different terminal devices is different.
  • the network device estimates the timing advance of the terminal device through the PRACH or SRS sent by the terminal device, and responds through random access response (random access response, RAR) or timing advance command (TAC) to notify the terminal device.
  • RAR random access response
  • TAC timing advance command
  • the applicable scenarios of this application mainly include network devices and terminal devices, which may include single or multiple network devices and single or multiple terminal devices.
  • network devices and terminal devices which may include single or multiple network devices and single or multiple terminal devices.
  • two network devices and a single terminal device are used
  • the scenario of FIG. 1C takes a network device and a terminal device as an example.
  • the network device can communicate regularly with the terminal device.
  • FIG. 1A is a schematic diagram of a scenario of a communication system provided by an embodiment of the present application.
  • the communication system includes a first network device, a second network device and a terminal device.
  • the first network device provides network coverage within the cell cell0
  • the second network device provides network coverage within the cell1.
  • Cell0 is currently the serving cell of the terminal device, and the first network device and the second network device send downlink control signaling and downlink data to the terminal device based on the resources of cell0.
  • the first network device and/or the second network device may send downlink control signaling and downlink data to the terminal device through one or more beams.
  • the one or more beams used to transmit downlink control signaling and downlink data are the downlink side. Upward service beam.
  • Other beams in the first network device and/or the second network device that do not transmit downlink control signaling and downlink data for the terminal device are all non-serving beams in the downlink direction for the terminal device. Non-serving beams in the downlink direction can send reference signals to terminal devices.
  • the terminal device may also transmit uplink control signaling and uplink data to the first network device and/or the second network device through one or more beams provided by the terminal device, which one or more beams are used to transmit uplink control signaling and uplink data.
  • the beam is the service beam in the uplink direction. All other beams in the terminal device that do not transmit uplink control signaling and uplink data for the first network device and/or the second network device are non-serving beams in the uplink direction.
  • the terminal equipment may measure the first reference signal transmitted by the serving beam or the non-serving beam in the downlink direction.
  • the first reference signal may originate from the first network device or the second network device. In the scenario shown in FIG. 1A , the first reference signal originating from the second network device is taken as an example for explanation.
  • the terminal equipment measures the first reference signal and determines, based on the first reference signal, whether the current first timing advance is suitable for uplink transmission on the target beam.
  • the target beam is the uplink transmission determined with the beam receiving the first reference signal as a reference. beam.
  • the target beam has the same direction as the beam transmitting the first reference signal or the direction deviation is less than a certain angle. This angle can be determined by the terminal device, or it can be pre-configured.
  • the angle is 10 degrees or 20 degrees, and the specific value is not limited. If it is not applicable, when the terminal device sends the measurement report of the first reference signal to the second network device, it sends timing indication information to the second network device to instruct the second network device to configure the second timing advance for the terminal device so as to facilitate The terminal device uses the second timing advance to perform uplink timing communication with the second network device.
  • the terminal equipment receives the first reference signal from the target cell; the terminal equipment determines whether to report at least one of the following information to the serving cell based on the first reference signal: whether a measurement gap is required, a measurement gap, or Target time difference, where the measurement gap is used by the terminal equipment to measure the target cell or the reference signal of the target cell.
  • the target time difference is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the signal received by the terminal equipment from the target cell and The time difference between receiving signals from the serving cell, the signal arrival time difference is the time difference between the serving cell signal and the target cell signal reaching the terminal device, and the synchronization time difference is the time difference between the serving cell synchronization signal and the target cell synchronization signal.
  • the target cell may be a neighboring cell of the serving cell, a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the target cell may be cell1. If the serving cell is cell1, the target cell can be cell0.
  • the target time difference may be based on the measurement of the first reference signal, the reception of the first reference signal, or the measurement result of the first reference signal to determine whether to report to the serving cell whether a measurement gap, measurement gap, or target time difference is required.
  • the terminal device may also make the determination in combination with the target information.
  • the target information includes the downlink of the serving cell and the target cell. At least one of the timing difference, the downlink timing of the serving cell, and the second reference signal, where the second reference signal is a reference signal of another cell except the target cell. Cells other than the target cell may be the serving cell or other neighbors of the target cell.
  • the second reference signal is a tracking reference signal (TRS) or a synchronization signal transmitted through a synchronization signal block (SSB). Or channel status information reference signal (CSI-RS).
  • TRS tracking reference signal
  • SSB synchronization signal block
  • CSI-RS channel status information reference signal
  • the measurement gap may be a gap measured by the physical layer of the terminal device.
  • the terminal device can adjust its own reception window in the configured measurement gap to receive the reference signal of the target cell.
  • the terminal device will suspend the use of the reception timing of the serving cell, and the reception of data or signals between the serving cell and the terminal device Or sending will be paused.
  • the terminal device will also determine the optimization relationship between the first item and the second item.
  • the terminal device will determine the optimization relationship between the first item and the second item.
  • the first item is to perform the measurement of the periodic first reference signal of the target cell according to the measurement gap
  • the second item is to send or receive the target resource or target signal of the serving cell.
  • the target cell can periodically send the first reference signal. After the terminal device determines whether a measurement gap is needed based on the first reference signal of the previous cycle, if the serving cell configures the corresponding measurement gap for the terminal device, in the subsequent cycle, the terminal device can The first reference signal for subsequent periods is measured according to the measurement gap.
  • the target resource or target channel can be a special resource or special channel, such as: it can be SSB, periodic CSI-RS, periodic uplink control channel (physical uplink control channel, PUCCH), associated downlink control channel Type0- (physical downlink control channel, PDCCH ), CSS COERSET, random access channel (PRACH) resources, sounding reference (sounding reference, SR) resources. For example: when the measurement of the periodic first reference signal according to the measurement gap overlaps with the transmission or reception of one or more of the above channels/signals, the measurement gap becomes invalid and priority is given to the reception or transmission of signals of special resources or special channels. .
  • the terminal device can report the measurement gap to the serving cell through an independent message or signaling, or can carry the measurement gap in the measurement report for reporting.
  • the scenario shown in Figure 1A involves two cells, such as cell0 and cell1.
  • the terminal device can transmit data with the second network device without switching the serving cell.
  • the terminal device will When cross-cell movement occurs, the serving cell of the terminal device can be switched to the target cell, making the target cell become the serving cell. If the terminal device is switched from the serving cell to the target cell, the terminal device can report to the target cell whether a measurement gap and measurement gap are needed. Or at least one of the target time difference; it is also possible that the original serving cell sends to the post-switched serving cell through high-layer signaling whether a measurement gap, a measurement gap, or at least one of the target time difference is required.
  • FIG. 1B is a schematic diagram of another scenario of the communication system provided by the embodiment of the present application.
  • the communication system includes a first network device, a second network device and a terminal device.
  • the difference between this scenario and the scenario in Figure 1A is that the first network device and the second network device collectively provide network coverage to cell0.
  • the terminal equipment may measure the first reference signal transmitted by the serving beam or the non-serving beam in the downlink direction.
  • the first reference signal may originate from the first network device or the second network device. In the scenario shown in FIG. 1B , the first reference signal originates from the second network device as an example.
  • the terminal equipment measures the first reference signal, and determines based on the first reference signal whether the current first timing advance is suitable for uplink transmission on the target beam. For example, the target beam is in the same direction as the beam transmitting the first reference signal. The deviation is less than a certain angle. This angle can be determined by the terminal device, or it can be pre-configured. For example, the angle is 10 degrees or 20 degrees, and the specific value is not limited.
  • the terminal device when it sends the measurement report of the first reference signal to the second network device, it sends timing indication information to the second network device to instruct the second network device to configure the second timing advance for the terminal device so as to facilitate The terminal device uses the second timing advance to perform uplink timing communication with the second network device.
  • the terminal device needs to switch to the second network device when transmitting data with the second network device.
  • FIG. 1C is a schematic diagram of another scenario of the communication system provided by the embodiment of the present application.
  • the communication system includes network equipment and terminal equipment. There are three antenna panels on the terminal device, and these three antenna panels are turned on at the same time.
  • the network device can provide multiple downlink transmission beams, such as beam 1 and beam 2 in Figure 1C. Different antenna panels of the terminal equipment can provide different uplink transmission beams, such as beam 3 provided by the antenna panel 102 .
  • the network device can send downlink data to the terminal device through beam 1, and the terminal device can use the antenna panel 101 to receive downlink data from beam 1.
  • the network device may send the first reference signal to the terminal device through beam 2, and the terminal device determines based on the first reference signal that the current first timing advance is not suitable for uplink transmission on the target beam, and the target beam is the beam in Figure 1C 3.
  • the beam 3 is determined based on the beam 2.
  • the terminal device may send a measurement report of the first reference signal to the network device and send timing indication information to the second network device to instruct the second network device to configure the second timing advance for the terminal device so that the terminal device can use the second timing. Perform uplink timing communication with the second network device in advance.
  • the terminal device may use the antenna panel 102 to send uplink data to the network device.
  • FIG. 2 is a schematic diagram of an embodiment of a timing indication method provided by an embodiment of the present application. Please refer to Figure 2.
  • An embodiment of a timing indication method provided by an embodiment of the present application includes:
  • the network device sends the first reference signal to the terminal device.
  • the terminal device receives the first reference signal sent by the network device.
  • the first reference signal may be a channel state information reference signal (channel state information reference signal, CSI-RS).
  • the first reference signal may be sent by the network device through a service beam or a non-service beam.
  • the non-service beam corresponds to the service beam.
  • the definitions of the service beam and the non-service beam can be understood by referring to the previous explanation of Figure 1A.
  • the terminal device can also measure the first reference signal to obtain a measurement report.
  • the terminal device can determine the first reference signal receiving power (reference signal receiving power, RSRP) by measuring the first reference signal.
  • RSRP reference signal receiving power
  • the terminal device determines the target timing difference based on the first reference signal.
  • This step 202 can be implemented in the following two ways:
  • the terminal device receives the second reference signal.
  • the second reference signal may also be a tracking reference signal (TRS) of the service beam sent by the network device, or a synchronization signal sent by the network device to the terminal device through a synchronization signal block (SSB).
  • TRS tracking reference signal
  • SSB synchronization signal block
  • the synchronization signal sent by the network device can also be described as sending SSB.
  • the second reference signal and the first reference signal are a pair of signals received by the terminal device, and belong to different measurement resource sets.
  • the first reference signal and the second reference signal in this implementation may be a pair of reference signals that the terminal device simultaneously activates different antenna panels to receive.
  • the pair of reference signals belonging to different measurement resource sets can be understood as originating from different sources. TRP, for example, the first reference signal originates from TRP1, and the second reference signal originates from TRP2.
  • the terminal device may determine the reception timing difference between the first reference signal and the second reference signal as the target timing difference.
  • the reception timing difference may be a difference between the time when the first reference signal reaches the terminal device and the time when the second reference signal reaches the terminal device.
  • the reception timing difference may also be the arrival time of the first path (first peak) of the power-delay spectrum of the first reference signal and the first path of the power-delay spectrum of the second reference signal. (first peak) arrival time difference.
  • This step 202a may be performed before step 202.
  • the terminal device determines the expected uplink timing difference of the first reference signal, and the expected uplink timing difference is the target timing difference.
  • the expected uplink timing difference refers to using the spatial domain receive filter of the first reference signal as the spatial domain filter for uplink transmission (the UE may use a spatial domain transmit filter that is the same as the spatial domain receive filter the UE may use to receive the DL reference signal), the terminal equipment determines the downlink synchronization time based on different downlink signals plus the time difference of the uplink timing obtained by the current TA.
  • the timing indication information can have different forms to indicate whether the target timing difference exceeds the timing range. If the timing indication information occupies 1 bit, for example, "0" can be used to indicate that the target timing difference does not exceed the timing range, and "1" can be used to indicate that the target timing difference exceeds the timing range.
  • the timing range can be a threshold or threshold value that is preconfigured or defined by the protocol, such as a cyclic prefix (CP).
  • CP cyclic prefix
  • the terminal device sends at least one of timing indication information and target timing difference to the network device.
  • the network device receives at least one of the timing indication information and the target timing difference from the terminal device.
  • At least one of the timing indication information and the target timing difference may be carried in the measurement report or in the first message. If both the timing indication information and the target timing difference are sent to the network device, it may also be that: the timing indication information is carried in the first message, and the target timing difference is carried in the second message.
  • the measurement report When the measurement report carries at least one of the timing indication information and the target timing difference, the measurement report can be better utilized, saving the cost of sending at least one of the timing indication information and the target timing difference through separate signaling or messages. network overhead.
  • the format of the current measurement report needs to be modified to add the above-mentioned new function of notifying the network device whether the target timing difference exceeds the timing range, so as to facilitate the launch of new functions.
  • the measurement report in addition to including the timing indication information, may also include the resource identifier (CSI-RS resource indicator, CRI) of the first reference signal and the RSRP of the first reference signal.
  • the timing indication information is used to indicate whether the target timing difference exceeds the timing range.
  • the timing indication information is used to indicate that the target timing difference is out of range, it means that the current uplink transmission timing of the terminal equipment is not suitable for the uplink transmission of the terminal equipment on the target beam; where the target beam is the terminal equipment to receive the first
  • the beam of the reference signal is used as the reference determined uplink transmission beam.
  • the target beam has the same direction as the beam transmitting the first reference signal or the direction deviation is less than a preset angle.
  • the preset angle is usually small, such as less than 10°.
  • the target beam may be a beam that is the same or similar in direction to the beam that receives the first reference signal. In this way, the uplink transmission timing determined based on the beam of the first reference signal can be better suited for uplink transmission on the target beam, thereby improving the success rate of uplink transmission on the target beam.
  • the terminal device If the timing indication information is used to indicate that the target timing difference is out of range, the terminal device also uses the current uplink transmission timing to send uplink data on the target beam, which will cause the network device to fail to receive it correctly. After the network device learns that the target timing difference exceeds the timing range through the target timing indication information, the network device can configure another TA for the terminal device to use when the terminal device sends uplink data on the target beam.
  • the timing indication information is used to indicate that the target timing difference does not exceed the range, it means that the current uplink transmission timing of the terminal device is suitable for the uplink transmission of the terminal device on the target beam. That is to say, the terminal device can use the current uplink transmission timing to send uplink data on the target beam, and the network device can also receive it correctly.
  • the terminal device can use multiple timing indication information to indicate whether the target timing difference of the corresponding first reference signal exceeds the timing range.
  • the network device can also configure a TA for each non-serving beam that exceeds the timing range for the terminal device to use in the corresponding Used when sending uplink data on non-serving beams.
  • the measurement report can include three types of information, namely: resource identifier CRI, reference signal received power and timing indication information.
  • the resource identifier CRI includes Resource #1, Resource #2, Resource #3, and Resource #4, which represent the resource identifiers of four reference signals.
  • the reference signal Resource #1 provides a reference for the other three reference signals.
  • the reference signal receiving power represents the receiving power of the corresponding reference signal by the terminal device.
  • 7 bits represent the receiving power of the terminal device for the reference signal Resource#1
  • 4 bits represent the terminal device receiving the reference signal Resource#.
  • the received power of 2 4bit represents the received power of the reference signal Resource#3 by the terminal device
  • the 4bit represents the received power of the reference signal Resource#4 by the terminal device.
  • the timing indication information in Figure 3A uses a 1-bit binary value of 0 or 1 to indicate whether the target timing difference of the reference signals Resource#2, Resource#3 and Resource#4 in Figure 3A relative to the reference signal Resource#1 exceeds the timing range.
  • 0 indicates that the target timing difference of the reference signal Resource#2 relative to the reference signal Resource#1 does not exceed the timing range.
  • 1 indicates that the target timing difference of reference signal Resource#3 relative to reference signal Resource#1 exceeds the timing range.
  • 1 indicates that the target timing difference of reference signal Resource#4 relative to reference signal Resource#1 exceeds the timing range.
  • Figure 3B illustrates the reporting form of a measurement report for a signal pair/beam pair.
  • the four reference signals with resource identifiers Resource#1, Resource#2, Resource#3 and Resource#4 belong to the same measurement resource set, and the resource identifiers are Resource#5, Resource#6, Resource#7 and Resource#.
  • These four reference signals of 8 belong to the same measurement resource set.
  • the beams belonging to the same measurement resource set can be understood as being provided by the same TRP.
  • the four beams corresponding to the four reference signals Resource#1, Resource#2, Resource#3 and Resource#4 can be understood as TRP1 Provided, the four beams corresponding to the four reference signals Resource#5, Resource#6, Resource#7 and Resource#8 are understood to be provided by TRP2.
  • Resource#1 and Resource#5 are a pair
  • Resource#2 and Resource#6 are a pair
  • Resource#3 and Resource#7 are a pair
  • Resource#4 and Resource#8 are a pair.
  • the terminal device simultaneously receives the pair of reference signals Resource#1 and Resource#5 the terminal device simultaneously receives the pair of reference signals Resource#2 and Resource#6, and the terminal device simultaneously receives the pair of Reference signals Resource#3 and Resource#7. signal
  • the terminal device receives the pair of reference signals Resource#4 and Resource#8 at the same time.
  • the terminal device simultaneously receiving a pair of reference signals means that the terminal device simultaneously activates different antenna panels to receive the pair of reference signals.
  • Figure 3B shows 8 resource identifiers.
  • the reference signals corresponding to these 8 resource identifiers have their own reference signal receiving powers.
  • the received power of the reference signal Resource#1 is 7 bits, and the other 7 bits.
  • the received power of each reference signal is 4bit.
  • the timing indication information illustrated in FIG. 3B uses a 1-bit binary value 0 or 1 to indicate whether the target timing difference determined by a pair of signals is out of range. As shown in Figure 3B, there are four pieces of timing indication information, and each timing indication information indicates whether the target timing difference of one reference signal in a pair of reference signals relative to the other reference signal exceeds the timing range. For example: If the four reference signals Resource#1, Resource#2, Resource#3 and Resource#4 from TRP1 provide references for the four reference signals from TRP2. Among the pair of reference signals Resource#1 and Resource#5, Resource#5 is equivalent to the first reference signal, and Resource#1 is equivalent to the second reference signal. Similarly, Resource#6, Resource#7 and Resource#8 in the other three pairs are all equivalent to the first reference signal, and Resource#2, Resource#3 and Resource#4 are all equivalent to the second reference signal.
  • the four timing indication information in Figure 3B are in the order from left to right in the same row and in the order from top to bottom in different rows.
  • 0 represents the target timing difference of the reference signal Resource#5 relative to the reference signal Resource#1.
  • the timing range has not been exceeded.
  • 1 indicates that the target timing difference of reference signal Resource#6 relative to reference signal Resource#2 exceeds the timing range.
  • 1 indicates that the target timing difference of reference signal Resource#7 relative to reference signal Resource#3 exceeds the timing range.
  • 1 indicates that the target timing difference of reference signal Resource#8 relative to reference signal Resource#4 exceeds the timing range.
  • the timing indication information is represented by 0 or 1 to indicate whether the target timing difference exceeds the timing range.
  • the corresponding instruction function is completed in a simple way and with the smallest bytes.
  • the target timing difference in this embodiment of the present application may be reported together with the timing indication information, or may be reported separately, which will be introduced separately below.
  • the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.
  • the binary value larger than 1 bit can be understood as timing indication information, or can also be understood as a target timing difference.
  • the timing indication information is represented by a binary value of 2 to 3 bits (or more bits), it can not only indicate whether the target timing difference exceeds the timing range, but also indicate how much it exceeds, such as: exceeding 1/2CP, 1CP or 2CP, etc.
  • the timing indication information is represented by 3 bits.
  • every increase of 1 represents an excess of 1CP.
  • 000 indicates that the target timing difference of the reference signal Resource#2 relative to the reference signal Resource#1 does not exceed the timing range.
  • 001 indicates that the target timing difference of the reference signal Resource#3 relative to the reference signal Resource#1 is out of range, and the target timing difference is 1CP.
  • 010 indicates that the target timing difference of reference signal Resource#4 relative to reference signal Resource#1 is out of range, and the target timing difference is 2CP.
  • two pieces of information are transmitted as a multi-bit binary value, which simplifies the representation of the timing indication information and the target timing difference.
  • the reporting method of the measurement gap and the target time difference can also be understood by referring to the methods schematically illustrated in Figure 3A, Figure 3B and Figure 4. Whether a measurement gap is required can be indicated by 0 indicating that no measurement is required. Gap, using 1 to indicate the need to measure the gap; the specific reference of the measurement gap or target time difference can also be reported in the manner shown in Figure 4.
  • the second message can be MAC CE or PUCCH, or other messages.
  • the terminal device sends a second message to the network device, and the second message carries the target timing difference.
  • the embodiment shown in Figure 2 also includes 201a and 201b.
  • 201a and 201b can be executed before 201.
  • the network device sends configuration information to the terminal device. Accordingly, the terminal device receives configuration information from the network device.
  • the format of the measurement report can be configured in the configuration information, such as the content to be reported, the field where the reported content is located, etc.
  • the network device can configure the timing indication information that needs to be reported in the configuration information, such as: using 1 in the specified field indicates that the timing needs to be reported. Instructions.
  • the configuration information may include first indication information, and the first indication information is used to instruct the terminal device to report the target timing difference.
  • the first indication information may also be indicated by a flag in a designated field. For example, 0 indicates that the target timing difference is not reported, and 1 indicates that the target timing difference is reported.
  • the terminal device can report the target timing difference according to the first instruction information of the network device in the configuration information, so that the network device can use the target timing difference to more accurately calculate the target timing difference suitable for the terminal device to perform operations on the target beam.
  • Uplink send timing for uplink send is used to instruct the terminal device to report the target timing difference.
  • the network device may also configure information associated with the first indication information in the configuration information.
  • the information associated with the first indication information may include an SSB index, a CSI-RS resource index, or a path loss reference signal index. at least one index in .
  • the configuration information is configured with information associated with the first indication information, it means that the terminal device reports the target timing difference when reporting the measurement report of the reference signal corresponding to at least one index.
  • the configuration information may also include quasi-colocation indication information.
  • the quasi-colocation indication information is used to instruct the terminal device to report the target timing when reporting a measurement report of a reference signal that has a quasi-colocation relationship with the reference signal corresponding to at least one of the indexes. Difference.
  • the terminal device reports capability information to the network device. Accordingly, the network device receives capability information from the terminal device.
  • Capability information includes at least one of the following:
  • the bandwidth of the first reference signal required by the terminal equipment for timing measurement based on downlink signals is greater than the preset threshold (for example: the required bandwidth of the first reference signal is greater than 10 resource blocks (RB)).
  • the capability information of the terminal device may also include at least one of the following:
  • the terminal device When the target time difference is greater than the threshold value of the measurement gap, the terminal device reports the need for a measurement gap or reports a measurement gap.
  • A can be 0 or any other positive number. For example, 6 ⁇ s (microseconds), when the terminal equipment measures the arrival time difference between the serving cell reference signal and the target cell reference signal is less than 6 ⁇ s, the terminal equipment does not need a measurement gap; otherwise, a measurement gap is required.
  • A can also be defined by the protocol or reported by the terminal device. The terminal device can report whether the target timing difference determined by timing measurement exceeds A.
  • the terminal equipment If the target timing difference exceeds threshold A when the terminal equipment measures the reference signal, the terminal equipment reports the need for a measurement gap or reports a measurement gap.
  • the terminal device reports capability information to the network device, which is helpful for the network device to configure accordingly according to the capabilities of the terminal device. For example, only terminal devices with target timing difference reporting capabilities will be configured as described above. first indication information, etc., thereby realizing effective communication between the terminal device and the network device.
  • step 201b can be performed before step 201a, and the network device can configure the configuration information based on the capability information of the terminal device. For example: For terminal device configurations that support determining the target timing difference and reporting the target timing difference, the target timing difference information needs to be reported.
  • embodiments of the present application also provide another method of expressing timing indication information by using the uplink transmission capability of the terminal device. That is to say: the timing indication information is represented by a target capability value or a set of target capability values, and the target capability value or a set of target capability values represents the uplink transmission capability of the terminal device.
  • the timing indication information is expressed using capability values or capability value sets, and a representation method of timing indication information is added.
  • the uplink transmission capability of the terminal device can be represented by the uplink transmission capability value (capability value) or capability value set (capability value set) of the antenna panel (panel) in the terminal device.
  • the uplink transmission capability value capability value
  • capability value set capability value set
  • the capability value and capability value set have the same form, but the names are different. In the following description, capability value is used Give a description.
  • the number of SRS ports of the antenna panel 501 and the antenna panel 502 is the same, and the capability value is represented by capability value #1.
  • the number of SRS ports of the antenna panel 503 and the antenna panel 501 and the antenna panel 502 are different.
  • the capability value of board 503 is represented by capability value #2.
  • the terminal device After the terminal device is connected to the network device, it will send one or more capability values to the network device. It can be understood that each capability value corresponds to the capability of one or more antenna panels or the capability of the SRS port.
  • the network device will store the terminal device. Capability value, for example, the terminal device can send two capability values with the maximum number of SRS ports to the network device, which are capability value #1 and capability value #2 respectively.
  • the ability value here can be understood as the initial ability value.
  • the timing indication information in the measurement report of the first reference signal can use different capability values of the antenna panels with the same SRS port number.
  • the SRS port numbers of antenna panel 501 and antenna panel 502 are the same.
  • the capability value of antenna panel 1 is capability value #1
  • the capability value of antenna panel 1 reported by the terminal device is capability value #3.
  • capability value #1 and capability value #3 can correspond to the same number of SRS ports.
  • the information included in the measurement report reported by the terminal device can be understood by referring to Table 1 below, as shown in Table 1:
  • the antenna panel 502 measures the reference signal CRI/SSRI#1
  • the antenna panel 503 measures the reference signal CRI/SSRI#2
  • the antenna panel 501 measures the reference signal CRI/SSRI#3.
  • the network device can determine based on the measurement results and corresponding capability values reported by the terminal device that the target timing difference exceeds the range when the reference signal measured and reported by the terminal device is used for uplink transmission, and a second timing advance needs to be configured for the terminal device.
  • the ability value sent following the measurement results here can be understood as the target ability value.
  • the network device can determine that the target timing difference is out of range based on changes in the capability value of the SRS port number. For example: the initial capability value of the SRS port number reported by the terminal device is only capability value #1 and There are two types of capability value#2, and the capability value reported in the measurement report includes capability value#3. This capability value#3 is not included in the initial capability value.
  • the network device can determine that the target timing difference is out of range based on this change. It is required Configure the second timing advance amount for the terminal device. Or it can be understood that the initial capability value and the target capability value both represent the terminal capability information transmitted in the uplink based on the corresponding downlink reference signal.
  • the capability values can correspond to the same maximum SRS port number and different timing advances; the initial capability value and the target capability The values can be reported by the terminal to the network device after the terminal is connected to the network device. After determining the corresponding downlink reference signal and corresponding capability value for the current uplink transmission, the capability values with the same SRS port number but different timing advances can be called target capability values.
  • the network device can also determine that the target timing difference is out of range based on the different capability values of antenna panels with the same SRS port number in the measurement report after measuring different reference signals.
  • the antenna panel 502 for measuring the reference signal CRI/SSRI#1 and the antenna panel 501 for measuring the reference signal CRI/SSRI#3 have the same number of SRS ports.
  • the corresponding capabilities of the two reference signals are One of the values is capability value #1, and the other is capability value #3.
  • the capability values corresponding to the two reference signals are different, which can also indicate that the target timing difference is out of range.
  • the target capability value is different from the initial capability value of the terminal device, or the target capability value set is different from the initial capability value set of the terminal device: used to indicate that the target timing difference exceeds the timing range.
  • the target capability value is equal to the initial capability value of the terminal device, or the target capability value set is equal to the initial capability value set of the terminal device: used to indicate that the target timing difference does not exceed the timing range.
  • the network device compares the target capability value with the initial capability value, or the network device compares the target capability value set with the initial capability value set, where the initial capability value or the initial capability value set of the terminal device is the terminal device and the network The capability value or capability value set of the SRS port when the device establishes a communication connection; if the target capability value is different from the terminal device's initial capability value, or the target capability value set is different from the terminal device's initial capability value set, the network device determines the target timing The difference exceeds the timing range; if the target capability value is equal to the initial capability value of the terminal device, or the target capability value set is equal to the initial capability value set of the terminal device: then the network device determines that the target timing difference does not exceed the timing range.
  • the network device can determine the target uplink transmission timing for the terminal device; then send the target uplink transmission timing to the terminal device.
  • the target uplink transmission timing is used for the terminal device's uplink transmission on the target beam.
  • the target beam is The terminal equipment determines the uplink transmission beam using the beam that receives the first reference signal as a reference.
  • a target timing difference field can be added to the measurement report, and the target timing difference can also be reported through another second message.
  • the terminal device sends at least one of the timing indication information and the target timing difference to the network device based on the target timing difference to notify the network device whether the target timing difference exceeds the timing range. If it is out of range, after the terminal device receives the first reference signal, the network device can configure in advance the uplink transmission timing suitable for uplink transmission in the direction of the first reference signal for the terminal device. In this way, the terminal device can use different uplink transmission timings to perform uplink transmission in different directions, so that the uplink transmissions of the terminal device in different directions can be correctly received by the corresponding network device.
  • reporting of at least one of the timing indication information and the target timing difference can also be performed through the process shown in FIG. 6 .
  • Another embodiment of the timing indication method provided by the embodiment of the present application includes:
  • the terminal device measures the first reference signal sent by the network device.
  • the terminal device determines the target timing difference based on the first reference signal.
  • the terminal device sends the measurement result/first message to the network device.
  • the network device receives the measurement result/first message of the first reference signal from the terminal device.
  • the measurement report/first message includes at least one of timing indication information and target timing difference, and the timing indication information is used to indicate whether the target timing difference exceeds the timing range.
  • the terminal device can also send a second message to the network device, carrying the target timing difference in the second message.
  • the second message may be a synchronization message of the first message.
  • the embodiment shown in Figure 6 also includes 601a and 601b.
  • Steps 601a, 601b, 601, 602 and 602a in Figure 6 can all be understood by referring to the previous steps 201a, 201b, 201, 202 and 202a, and will not be repeated here.
  • the target timing difference needs to be determined. In fact, the target timing difference is not certain.
  • This application can also report timing indication information. This process can be understood with reference to Figure 7.
  • timing indication method may include:
  • the terminal device measures the first reference signal sent by the network device.
  • the terminal device sends a measurement report/first message to the network device.
  • the network device receives the measurement report/first message of the first reference signal from the terminal device.
  • the timing indication information is used to indicate whether the uplink transmission timing determined based on the first reference signal is suitable for the uplink transmission of the terminal device in the first reference signal direction.
  • the method may further include: the terminal device determines a target timing difference based on the first reference signal, and whether the target timing difference exceeds the timing range is used to indicate whether the uplink transmission timing determined based on the first reference signal is suitable for The terminal equipment transmits uplink in the direction of the first reference signal.
  • This embodiment may also include steps 701a, 701b, and 702a.
  • Steps 701a and 701b can be understood by referring to the previous steps 201a and 201b
  • 702a can be understood by referring to the previous step 203a.
  • steps 202 and 602 are not performed, and other contents are the same as those of the previous embodiment of FIGS. 2 to 6 . Please refer to the previous corresponding contents for understanding.
  • the measurement report in the above embodiment can also be understood as a form of expression of the first message.
  • the first message can be understood as a general description.
  • the first message can be a measurement report, or it can is a different message than the measurement report.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 can be used to perform the steps performed by the terminal device in the embodiments shown in Figures 2 to 7.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 can be used to perform the steps performed by the terminal device in the embodiments shown in Figures 2 to 7.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 can be used to perform the steps performed by the terminal device in the embodiments shown in Figures 2 to 7.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 can be used to perform the steps performed by the terminal device in the embodiments shown in Figures 2 to 7.
  • FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 800 can be used to perform the steps performed by
  • the communication device 800 includes a transceiver module 801 and a processing module 802.
  • the transceiver module 801 can implement corresponding communication functions, and the processing module 802 is used for data processing.
  • the transceiver module 801 may also be called a communication interface or communication unit.
  • the communication device 800 may also include a storage unit, which may be used to store instructions and/or data, and the processing module 802 may read the instructions and/or data in the storage unit, so that the communication device implements the foregoing method.
  • a storage unit which may be used to store instructions and/or data
  • the processing module 802 may read the instructions and/or data in the storage unit, so that the communication device implements the foregoing method. Example.
  • the communication device 800 can be used to perform the actions performed by the terminal device in the above method embodiment.
  • the communication device 800 may be a terminal device or a component that can be configured in the terminal device.
  • the transceiver module 801 is used to perform reception-related operations on the terminal device side in the above method embodiment, and the processing module 802 is used to perform processing-related operations on the terminal device side in the above method embodiment.
  • the transceiver module 801 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 800 may include a sending module but not a receiving module.
  • communication device 800 may include a receiving module but not a transmitting module. Specifically, it may depend on whether the above solution executed by the communication device 800 includes a sending action and a receiving action.
  • the communication device 800 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 2 above.
  • Transceiver module 801 used to receive the first reference signal.
  • Processing module 802 configured to determine the target timing difference based on the first reference signal.
  • the transceiving module 801 is configured to send at least one of timing indication information and the target timing difference to a network device, where the timing indication information is used to indicate whether the target timing difference exceeds a timing range.
  • the transceiver module 801 is also used to perform step 201b in the embodiment shown in FIG. 2 .
  • the communication device 800 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 6 above.
  • the processing module 802 is used to execute step 601 and step 602 in the embodiment shown in FIG. 6 .
  • the communication device 800 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 7 above.
  • the processing module 802 is used to perform step 701 in the embodiment shown in FIG. 7 .
  • the transceiver module 801 is configured to receive the first reference signal from the target cell
  • the processing module 802 is configured to determine, based on the first reference signal, whether to report at least one of the following information to the serving cell: whether a measurement gap, a measurement gap, or a target time difference is required, where the measurement gap is used by the terminal device to perform a measurement of the target cell or the target time difference.
  • the reference signal of the target cell is measured.
  • the target time difference is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal device receiving the signal from the target cell and the signal from the serving cell.
  • the signal arrival time difference is the signal of the serving cell.
  • the synchronization time difference is the time difference between the synchronization signal of the serving cell and the synchronization signal of the target cell.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the processing module 802 is specifically configured to determine whether to report at least one of the following information to the serving cell based on the first reference signal and target information.
  • the target information includes the downlink timing difference between the serving cell and the target cell, and the downlink timing of the serving cell. timing, and at least one of a second reference signal, where the second reference signal is a reference signal of a cell other than the target cell.
  • the processing module 802 is also configured to execute the item with higher priority based on the optimization relationship between the first item and the second item when the execution of the first item and the second item conflicts.
  • the first item is based on The measurement gap performs measurement of the periodic first reference signal of the target cell
  • the second item is the transmission or reception of target resources or target signals of the serving cell.
  • the transceiver module 801 is also configured to report to the target cell whether at least one of a measurement gap, a measurement gap, or a target time difference is required after switching from the serving cell to the target cell.
  • the transceiver module 801 is also configured to report capability information to the serving cell before receiving the first reference signal from the target cell.
  • the capability information includes at least one of the following: whether the terminal device requires a measurement gap, and whether the terminal device supports reporting measurements. gap, and whether the terminal device supports reporting the threshold value of the measurement gap.
  • the transceiver module 801 is specifically used to report the need for a measurement gap or report a measurement gap when the target time difference is greater than the threshold value of the measurement gap.
  • the processing module 802 in the above embodiment may be implemented by at least one processor or processor-related circuit.
  • the transceiver module 801 may be implemented by a transceiver or a transceiver related circuit.
  • the transceiver module 801 may also be called a communication unit or communication interface.
  • the storage unit may be implemented by at least one memory.
  • Figure 9 illustrates the general A structural diagram of the signaling device.
  • the communication device 900 can be used to perform the steps performed by the network device in the embodiment shown in Figure 2.
  • FIG. 9 please refer to the relevant introduction in the above method embodiment.
  • the communication device 900 includes a transceiver module 901.
  • the communication device 900 also includes a processing module 902.
  • the transceiver module 901 can implement corresponding communication functions, and the processing module 902 is used for data processing.
  • the transceiver module 901 may also be called a communication interface or communication unit.
  • the communication device 900 can be used to perform the actions performed by the terminal device in the above method embodiment.
  • the communication device 900 may be a network device or a component configurable in the network device.
  • the transceiver module 901 is used to perform reception-related operations on the network device side in the above method embodiment.
  • the transceiver module 901 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 900 may include a sending module but not a receiving module.
  • communication device 900 may include a receiving module but not a transmitting module. Specifically, it may depend on whether the above solution executed by the communication device 900 includes a sending action and a receiving action.
  • the communication device 900 is used to perform the actions performed by the network device in the embodiment shown in FIG. 2 above.
  • the transceiver module 901 is configured to send a first reference signal to the terminal device, and receive at least one of timing indication information and a target timing difference from the terminal device.
  • the target timing difference is determined by the terminal device based on the first reference signal.
  • the processing module 902 is configured to determine whether the target timing difference exceeds the timing range according to at least one of the timing indication information and the target timing difference.
  • the transceiver module 901 is also used to perform step 201a in the embodiment shown in FIG. 2 .
  • the transceiver module 901 is configured to receive at least one of the following information reported by the terminal device: whether a measurement gap is required, a measurement gap, or a target time difference, where the measurement gap is used by the terminal device to measure the target The cell or the reference signal of the target cell is measured.
  • the target time difference is the signal reception time difference, signal arrival time difference or synchronization time difference.
  • the signal reception time difference is the time difference between the terminal device receiving the signal from the target cell and the service cell.
  • the signal arrival time difference is the service The time difference between the signal of the cell and the signal of the target cell reaches the terminal equipment.
  • the synchronization time difference is the time difference between the synchronization signal of the serving cell and the synchronization signal of the target cell;
  • the processing module 902 is configured to communicate with the terminal device according to whether at least one of a measurement gap, a measurement gap, or a target time difference is required.
  • the target cell is a cell under measurement, a candidate cell to be switched to when the terminal device moves, or a candidate cell in a multi-transmission reception point TRP scenario.
  • the transceiver module 901 is also used to receive capability information reported by the terminal device.
  • the capability information includes at least one of the following: whether the terminal device requires a measurement gap, whether the terminal device supports reporting a measurement gap, and whether the terminal device supports reporting a measurement gap. threshold value.
  • the processing module 902 in the above embodiments may be implemented by at least one processor or processor-related circuit.
  • the transceiver module 901 may be implemented by a transceiver or a transceiver-related circuit.
  • the transceiver module 901 may also be called a communication unit or communication interface.
  • the storage unit may be implemented by at least one memory.
  • An embodiment of the present application also provides a communication device 1000.
  • the communication device 1000 includes a processor 1010.
  • the processor 1010 is coupled to a memory 1020.
  • the memory 1020 is used to store computer programs or instructions and/or data.
  • the processor 1010 is used to execute the computer programs or instructions and/or data stored in the memory 1020. The method in the above method embodiment is caused to be executed.
  • the communication device 1000 includes one or more processors 1010 .
  • the communication device 1000 may further include a memory 1020 .
  • the communication device 1000 may include one or more memories 1020 .
  • the memory 1020 can be integrated with the processor 1010 or provided separately.
  • the communication device 1000 may also include a transceiver 1030, which is used for receiving and/or transmitting signals.
  • the processor 1010 is used to control the transceiver 1030 to receive and/or transmit signals.
  • the communication device 1000 is used to implement the operations performed by the terminal device in the above method embodiment.
  • the processor 1010 is used to implement the processing-related operations performed by the terminal device in the above method embodiment
  • the transceiver 1030 is used to implement the transceiver-related operations performed by the terminal device in the above method embodiment.
  • the communication device 1000 is used to implement the operations performed by the network device in the above method embodiment.
  • the processor 1010 is used to implement the processing-related operations performed by the network device in the above method embodiment
  • the transceiver 1030 is used to implement the transceiver-related operations performed by the network device in the above method embodiment.
  • the communication device 1100 may be a terminal device or a chip.
  • the communication device 1100 may be used to perform operations performed by the terminal device in the above method embodiments.
  • FIG. 11 shows a simplified structural schematic diagram of the terminal device.
  • the terminal device includes a processor, a memory, and a transceiver, where the memory can store computer program codes.
  • the transceiver includes a transmitter 1131, a receiver 1132, a radio frequency circuit (not shown in the figure), an antenna 1133, and an input Output device (not shown).
  • the processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, process data of software programs, etc.
  • Memory is mainly used to store software programs and data.
  • Radio frequency circuits are mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • Only one memory, processor and transceiver are shown in Figure 11. In an actual terminal equipment product, there may be one or more processors and one or more memories. Memory can also be called storage media or storage devices.
  • the memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a processor 1110, a memory 1120 and a transceiver 1130.
  • the processor 1110 may also be called a processing unit, a processing board, a processing module, a processing device, etc.
  • the transceiver 1130 may also be called a transceiver unit, a transceiver, a transceiver device, etc.
  • the components in the transceiver 1130 used to implement the receiving function can be regarded as a receiving unit
  • the components in the transceiver 1130 used to implement the transmitting function can be regarded as a sending unit, that is, the transceiver 1130 includes a receiver and a transmitter.
  • a transceiver may also be called a transceiver, a transceiver unit, or a transceiver circuit.
  • the receiver may also be called a receiver, receiving unit, or receiving circuit.
  • the transmitter may also be called a transmitter, a transmitting unit or a transmitting circuit.
  • the processor 1110 is configured to perform processing actions on the terminal device side in the embodiment shown in FIG. 2
  • the transceiver 1130 is configured to perform sending and receiving actions on the terminal device side in FIG. 2
  • the transceiver 1130 is used to perform the sending and receiving operations of steps 201 and 203 in the embodiment shown in FIG. 2
  • the processor 1110 is configured to perform the processing operations of steps 201 and 202 in the embodiment shown in FIG. 2
  • the transceiver 1130 is also used to perform the sending and receiving operations of step 201b in the embodiment shown in FIG. 2 .
  • the processor 1110 is configured to perform processing actions on the terminal device side in the embodiment shown in FIG. 6 .
  • the processor 1110 is configured to perform the processing operations of steps 601 and 602 in the embodiment shown in FIG. 6 .
  • the processor 1110 is configured to perform processing actions on the terminal device side in the embodiment shown in FIG. 7 .
  • the processor 1110 is configured to perform the processing operation of step 701 in the embodiment shown in FIG. 7 .
  • FIG. 11 is only an example and not a limitation.
  • the above-mentioned terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 11 .
  • the chip When the communication device 1100 is a chip, the chip includes a processor, a memory and a transceiver.
  • the transceiver may be an input-output circuit or a communication interface;
  • the processor may be a processing unit, a microprocessor or an integrated circuit integrated on the chip.
  • the sending operation of the terminal device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiment can be understood as the input of the chip.
  • the communication device 1200 may be a network device or a chip.
  • the communication device 1200 may be used to perform the operations performed by the network device in the above method embodiment.
  • FIG. 12 shows a simplified schematic structural diagram of a base station.
  • the base station includes a 1210 part, a 1220 part and a 1230 part.
  • Part 1210 is mainly used for baseband processing, controlling the base station, etc.
  • Part 1210 is usually the control center of the base station, which can usually be called a processor, and is used to control the base station to perform processing operations on the network device side in the above method embodiments.
  • Part 1220 is mainly used to store computer program code and data.
  • the 1230 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals; the 1230 part can usually be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc.
  • the transceiver unit of part 1230 which may also be called a transceiver or a transceiver, includes an antenna 1233 and a radio frequency circuit (not shown in the figure), where the radio frequency circuit is mainly used for radio frequency processing.
  • the device used to implement the receiving function in part 1230 can be regarded as a receiver, and the device used to implement the transmitting function can be regarded as a transmitter, that is, part 1230 includes a receiver 1232 and a transmitter 1231.
  • the receiver may also be called a receiving unit, receiver, or receiving circuit, etc.
  • the transmitter may be called a transmitting unit, transmitter, or transmitting circuit, etc.
  • Parts 1210 and 1220 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processors at the same time. device.
  • the transceiver unit of part 1230 is used to perform transceiver-related steps performed by the network device in the embodiment shown in FIG. 2 .
  • the processor of part 1210 is used to perform processing-related steps performed by the network device in the embodiment shown in FIG. 2 .
  • FIG. 12 is only an example and not a limitation.
  • the above-mentioned network device including a processor, a memory, and a transceiver may not rely on the structure shown in FIG. 12 .
  • the chip When the communication device 1200 is a chip, the chip includes a transceiver, a memory and a processor.
  • the transceiver may be an input-output circuit or a communication interface;
  • the processor may be a processor or microprocessor or integrated circuit integrated on the chip.
  • the sending operation of the network device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the network device in the above method embodiment can be understood as the input of the chip.
  • Embodiments of the present application also provide a computer-readable storage medium on which are stored computer instructions for implementing the method executed by the terminal device or the method executed by the network device in the above method embodiment.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in the above method embodiment, or the method executed by the network device.
  • Embodiments of the present application also provide a computer program product containing instructions.
  • the instructions When the instructions are executed by a computer, the computer implements the method executed by the terminal device or the method executed by the network device in the above method embodiment.
  • An embodiment of the present application also provides a communication system, which includes the network device and terminal device in the above embodiment.
  • An embodiment of the present application also provides a chip device, including a processor for calling a computer program or computer instructions stored in the memory, so that the processor executes the timing instructions of the embodiments shown in FIGS. 2 to 7. method.
  • the input of the chip device corresponds to the receiving operation in the embodiment shown in FIGS. 2 to 7
  • the output of the chip device corresponds to the sending operation in the embodiment shown in FIGS. 2 to 7 . operate.
  • the processor is coupled to the memory through an interface.
  • the chip device further includes a memory, in which computer programs or computer instructions are stored.
  • the processor mentioned in any of the above places can be a general central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above-mentioned Figures 2 to Figure 7 shows an integrated circuit for program execution of the timing indication method of the embodiment.
  • the memory mentioned in any of the above places can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc.
  • the terminal device or the network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer may include a central processing unit (central processing unit). Processing unit (CPU), memory management unit (MMU) and memory (also called main memory) and other hardware.
  • the operating system of the operating system layer can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system or windows operating system, etc.
  • the application layer can include applications such as browsers, address books, word processing software, and instant messaging software.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium and includes a number of instructions to A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other various media that can store program codes.

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

Abstract

La présente demande concerne un procédé d'indication de synchronisation et un appareil de communication, qui sont appliqués à un scénario dans lequel les panneaux à antennes multiples d'un dispositif terminal sont démarrés en même temps ou à un scénario dans lequel le dispositif terminal communique avec un point d'émission-réception (TRP) multiple. Le procédé comprend les étapes suivantes : le dispositif terminal reçoit un premier signal de référence transmis par un dispositif réseau, détermine une différence de synchronisation cible d'après le premier signal de référence, puis transmet les informations d'indication de synchronisation et/ou la différence de synchronisation cible au dispositif réseau, de façon à avertir le dispositif réseau si la différence de synchronisation cible dépasse une plage de synchronisation. Si la différence de synchronisation cible dépasse la plage, le dispositif de réseau peut configurer, pour le dispositif terminal, une synchronisation de transmission en liaison montante appropriée à une transmission en liaison montante dans une direction du premier signal de référence. De cette manière, le dispositif terminal peut utiliser différentes synchronisations de transmission en liaison montante pour effectuer une transmission en liaison montante dans différentes directions, de façon à ce que la transmission en liaison montante du dispositif terminal dans différentes directions dans un scénario de communication multipoint puisse être correctement reçue par le dispositif réseau correspondant.
PCT/CN2023/091451 2022-04-29 2023-04-28 Procédé d'indication de synchronisation et appareil de communication Ceased WO2023208166A1 (fr)

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US20210219255A1 (en) * 2020-01-10 2021-07-15 Qualcomm Incorporated Timing advance update for non-serving cell
WO2022019593A1 (fr) * 2020-07-20 2022-01-27 엘지전자 주식회사 Procédé et appareil pour transmettre un signal dans un système de communication sans fil
CN114071690A (zh) * 2020-08-06 2022-02-18 维沃移动通信有限公司 信息上报方法、信息接收方法及相关设备
WO2022055329A1 (fr) * 2020-09-14 2022-03-17 Samsung Electronics Co., Ltd. Procédé et appareil de réglage de synchronisation dans un système de communication sans fil

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Publication number Priority date Publication date Assignee Title
CN111052814A (zh) * 2017-09-06 2020-04-21 华为技术有限公司 客户端设备、网络接入节点及其方法
US20210219255A1 (en) * 2020-01-10 2021-07-15 Qualcomm Incorporated Timing advance update for non-serving cell
WO2022019593A1 (fr) * 2020-07-20 2022-01-27 엘지전자 주식회사 Procédé et appareil pour transmettre un signal dans un système de communication sans fil
CN114071690A (zh) * 2020-08-06 2022-02-18 维沃移动通信有限公司 信息上报方法、信息接收方法及相关设备
WO2022055329A1 (fr) * 2020-09-14 2022-03-17 Samsung Electronics Co., Ltd. Procédé et appareil de réglage de synchronisation dans un système de communication sans fil

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Publication number Priority date Publication date Assignee Title
WO2025222902A1 (fr) * 2024-04-26 2025-10-30 华为技术有限公司 Procédé et appareil de synchronisation

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