WO2023208166A1 - Method for timing indication and communication apparatus - Google Patents

Abstract

The present application discloses a method for timing indication and a communication apparatus, which are applied to a scenario in which multi-antenna panels of a terminal device are started at the same time or a scenario in which the terminal device communicates with a multi-transmission reception point (TRP). The method comprises: the terminal device receives a first reference signal transmitted by a network device, determines a target timing difference on the basis of the first reference signal, and then transmits at least one of timing indication information and the target timing difference to the network device, so as to notify the network device of whether the target timing difference exceeds a timing range. If the target timing difference exceeds the range, the network device may configure, for the terminal device, an uplink transmission timing suitable for uplink transmission in a 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 uplink transmission of the terminal device in different directions in a multi-point communication scenario can be correctly received by the corresponding network device.

Description

A timing indication method and communication device

This application claims priority to the Chinese patent application submitted to the China Patent Office on April 29, 2022, with the application number 202210467501.5 and the invention title "A timing indication method and communication device", the entire content of which is incorporated herein by reference. Applying.

Technical field

The present application relates to the field of communication technology, and specifically to a timing indication method and a communication device.

Background technique

There is a delay in the transmission of signals communicated between network equipment and terminal equipment in space. Because the distances from different terminal equipment to the network equipment are different, the time differences for signals sent by different terminal equipment to reach the network equipment are 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 arrive at the network device at different times. 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 these signals fall within the cyclic prefix (cyclic prefix, CP) range, the network device can correctly receive the uplink data sent by the terminal device. Therefore, the terminal device requires timing advance (TA) for uplink transmission, and the timing advance of different terminal devices is different.

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.

Currently, terminal devices can only perform scheduled uplink transmission based on the timing advance that has been issued by a network device. However, in a scenario where multiple transmission reception points (TRPs) can communicate with the same terminal device, the terminal The existing timing advance of the device cannot be used by the terminal device to communicate with multiple TRPs.

Contents of the invention

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 above technical solution can be applied to a scenario where multiple antenna panels of a terminal device are turned on at the same time or a scenario where the terminal device communicates with multiple transmission reception points (TRPs). In this solution, 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.

In a possible implementation of the first aspect, 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. 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.

In a possible implementation of the first aspect, 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.

In the technical solutions provided in the above second and third aspects, 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.

In the technical solution provided in the fourth aspect, 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.

In a possible implementation of the fourth aspect, 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.

In a possible implementation of the first to fourth aspects, 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 above steps: 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.

In this possible implementation manner, sending the synchronization signal to the terminal device through SSB can be understood as sending SSB to the terminal device. In this method, 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.

In a possible implementation manner of the first to fourth aspects, 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.

In a possible implementation of the first to fourth aspects, 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; 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 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.

In this possible implementation, 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 suitable for use in Uplink transmission on the target beam, thereby improving the success rate of uplink transmission on the target beam.

In a possible implementation manner of the first to fourth aspects, 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.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation, 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.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation manner, 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.

In a possible implementation manner of the first to fourth aspects, 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. When reporting the signal measurement, the target timing difference is reported.

In this possible implementation manner, when the configuration information also includes quasi-colocation indication information, the terminal device needs to report the target timing difference in a targeted manner according to the indication of the quasi-colocation indication information.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation, 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.

In a possible implementation manner of the first to fourth aspects, the timing indication information is represented by a 1-bit binary value.

In this possible implementation, 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. In this method, the corresponding instruction function is completed in a simple way and with the smallest bytes.

In a possible implementation manner of the first to fourth aspects, the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.

In this possible implementation, 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. In this method, 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.

In a possible implementation of the first to fourth aspects, 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. The uplink sending capability value or capability value set within the range.

In this possible implementation, capability values (capability values) or capability values set (capability values set) describe the transmission capabilities of the terminal device. For example, 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. Currently, 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.

In a possible implementation manner of the first to fourth aspects, 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.

In this possible implementation manner, the number of SRS ports can also be understood as the number of ports on the antenna panel of the terminal device.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation, if 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.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation, 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.

In a possible implementation of the first to fourth aspects, 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.

In a possible implementation of the first to fourth aspects, 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.

In this possible implementation, 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.

In the technical solution of the fifth aspect, 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.

In a possible implementation of the fifth aspect, the above step: 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.

In a possible implementation of the fifth aspect, 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.

In the technical solution provided in the sixth aspect, 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.

In the technical solution provided in the seventh aspect, 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.

In a possible implementation of the seventh aspect, 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.

In a possible implementation manner of the fifth aspect to the seventh aspect, 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.

In a possible implementation manner of the fifth to seventh aspects, 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; 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 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.

In a possible implementation manner of the fifth to seventh aspects, 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.

In a possible implementation manner of the fifth aspect to the seventh aspect, 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.

In a possible implementation of the fifth to seventh aspects, 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.

In a possible implementation manner of the fifth to seventh aspects, 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. When reporting the signal measurement, the target timing difference is reported.

In a possible implementation of the fifth to seventh aspects, 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.

In a possible implementation manner of the fifth aspect to the seventh aspect, the timing indication information is a 1-bit binary number. value to represent.

In a possible implementation manner of the fifth aspect to the seventh aspect, the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.

In a possible implementation manner of the fifth aspect to the seventh aspect, 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.

In a possible implementation manner of the fifth aspect to the seventh aspect, 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.

The beneficial effects of the above fifth, sixth and seventh aspects and any possible implementation manner thereof can be understood by referring to the corresponding descriptions of the first to fourth aspects, and will not be repeated here.

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.

In a possible implementation of the eighth aspect, 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.

In a possible implementation of the eighth aspect, 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.

In a possible implementation of the eleventh aspect, 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.

In a possible implementation of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth aspect to the eleventh aspect, 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 When the airspace receiving filter of the first reference signal is used as the transmitting airspace filter for uplink transmission, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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. As a spatial filter for uplink transmission.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth aspect to the eleventh aspect, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth aspect to the eleventh aspect, the timing indication information is represented by a 1-bit binary value.

In a possible implementation manner of the eighth to eleventh aspects, the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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. When 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In a possible implementation manner of the eighth to eleventh aspects, 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.

In the above-mentioned eighth to eleventh aspects, and any possible implementation manner thereof, 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.

In a possible implementation of the twelfth aspect, 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 .

In a possible implementation of the twelfth aspect, 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.

In a possible implementation of the fourteenth aspect, 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.

In the twelfth aspect to the fourteenth aspect, and any possible implementation manner thereof,

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.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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.

In the twelfth aspect to the fourteenth aspect, and any possible implementation manner thereof,

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.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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. When reporting the measurement of the co-located reference signal, the target timing difference is reported.

In the twelfth aspect to the fourteenth aspect, and any possible implementation manner thereof,

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.

In the twelfth aspect to the fourteenth aspect, and any possible implementation manner thereof, the timing indication information is represented by a 1-bit binary value.

In aspects 12 to 14, and any possible implementation manner thereof, the timing indication information and the target timing difference are represented by a binary value greater than 1 bit.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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 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.

In the twelfth to fourteenth aspects, and any possible implementation thereof, 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.

In the twelfth to fourteenth aspects, and any possible implementation manner thereof, 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.

In the above-mentioned twelfth to fourteenth aspects, and any possible implementation manner thereof, 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. In the operation, 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.

Optionally, 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.

Optionally, 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.

In this application, 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.

In a possible implementation manner, 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.

In a possible implementation, 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. .

In this possible implementation, other cells other than the target cell can be the serving cell or other neighbors of the target cell, and the second reference signal is a tracking reference signal (TRS), through a synchronization signal block (synchronization signal). block, SSB) transmitted synchronization signal or channel status information reference signal (channel status information reference signal, CSI-RS).

In a possible implementation, 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.

In this possible implementation, 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. .

In a possible implementation manner, 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.

In this possible implementation, when the terminal device switches the serving cell, the target cell becomes the current serving cell, and 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.

In a possible implementation, 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.

In one possible implementation, 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.

In this possible implementation, 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.

In a possible implementation manner, 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.

In a possible implementation, 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.

In a possible implementation manner, 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.

In a possible implementation, 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.

In a possible implementation, 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, and the second item is to send or receive the target resource or target signal of the serving cell.

In a possible implementation manner, 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.

In a possible implementation, 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.

In a possible implementation manner, 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.

In a possible implementation manner, 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.

In a possible implementation, 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, and 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, and 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. 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. 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.

Optionally, 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.

Optionally, 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.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages: 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.

Description of the drawings

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;

Figure 6 is a schematic diagram of another embodiment of the timing indication method provided by the embodiment of the present application;

Figure 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.

Detailed ways

The embodiments of the present application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Persons of ordinary skill in the art will know that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

The terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus that encompasses a series of steps or units and need not be limited to those explicitly listed. Those steps or elements may instead include other steps or elements not expressly listed or inherent to the process, method, product or apparatus.

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.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: fifth generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency Frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), mobile communication system after 5G network (for example, 6G mobile communication system), vehicle to everything (V2X) communication system, etc.

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., includes wireless communication functions (providing voice/data connectivity to users) Devices, such as handheld devices with wireless connection capabilities, or vehicle-mounted devices. Currently, some examples of terminal devices are: mobile phones, tablets, laptops, PDAs, and mobile Internet devices. (mobile internet device, MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control (industrial control), wireless terminals in the Internet of Vehicles, Wireless terminals in self-driving, wireless terminals in remote medical surgery, 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. For example, 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. For example, a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. For example, 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.

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. For example, 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 One or a group (including multiple antenna panels) of antenna panels of a base station; alternatively, the network device may also be a network node that constitutes a gNB or a transmission point. For example, baseband unit (BBU), or distributed unit (DU), etc.

In some deployments, gNB may include centralized units (CUs) and DUs. The gNB may also include an active antenna unit (AAU). CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer functions. 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. AAU implements some physical layer processing functions, radio frequency processing and active antenna related functions. The information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer. Therefore, under this architecture, high-level signaling (such as RRC layer signaling) can also be considered to be sent by DU, or sent by DU and AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, 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.

In order to facilitate understanding of the embodiments of this application, the terms involved in this application are briefly introduced below.

1. Beam: 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. 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, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.

2. Quasi-co-location (QCL): 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.

3. Reference signal (RS): According to the Long Term Evolution LTE/NR protocol, at the physical layer, 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., and downlink signals include primary synchronization signal (primary synchronization signal). , PSS for short)/secondary synchronization signal (SSS), downlink control channel demodulation reference signal (PDCCH de-modulation reference signal, PDCCH-DMRS), downlink data channel demodulation reference signal (PDSCH de-modulation reference signal) , PDSCH-DMRS), phase noise tracking signal PTRS, channel status information reference signal (CSI-RS), cell reference signal (CRS) (NR does not have), precision synchronization signal (time/frequency tracking reference signal (TRS) (not available in LTE), LTE/NR positioning signal (positioning RS), etc.

4. Transmission configuration indicator (TCI): 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. , is a field in the downlink control information (DCI) used to indicate the quasi-colocation of the PDSCH antenna ports.

5. Transmission reception point (TRP): (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.). In the case of higher spectrum, due to the limited coverage of a network node (such as a base station), if the traditional cell is defined, the cell coverage radius will be very small. Therefore, 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.

6. Antenna panel (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. Alternatively, in order to reduce the power consumption of the terminal equipment, 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.

In the embodiments of this application, unless otherwise specified, 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. In addition, there are other ways to hide Including represents the antenna panel. For example, 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, PDCCH), physical broadcast channel (physical broadcast channel, PBCH), etc.), or through beams, QCL, TCI-state, spatial relation Or configure an index in QCL, TCI-state, spatial relation to represent it. It can also be characterized by beam group, QCL group, TCI-state group, spatial relation group, etc. That is to say, the antenna panel/panel logo described in this application can be replaced by a logo other than the above content.

7. Capability value set: It is also called capability values in some places, and both express the same meaning. In the Rel-17 standard discussion, 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. In the evolution of the protocol in future versions, this ability value/ability value set may further include more content. When the terminal device reports an L1 measurement report, 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.

8. Timing advance (TA): 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. 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 ( The network device 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.

The following describes three possible application scenarios for which this application is applicable. This application is still applicable to other application scenarios, and the specific application is not limited.

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. In the scenarios of Figure 1A and Figure 1B below, two network devices and a single terminal device are used For example, the scenario of FIG. 1C takes a network device and a terminal device as an example. In the scenarios of FIGS. 1A to 1C , 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. Referring to Figure 1A, 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, and 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. For example: 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. For example, 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.

In addition, in the embodiment of the present application, 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. In Figure 1A, if the serving cell is cell0, the target cell may be cell1. If the serving cell is cell1, the target cell can be cell0.

Wherein, it is determined based on the first reference signal whether reporting to the serving cell requires a measurement gap, a measurement gap, or Or 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.

When the terminal device determines whether to report at least one of the measurement gap, measurement gap, or target time difference to the serving cell based on the first reference signal, 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).

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. During the measurement gap, 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.

In addition, in the embodiment of the present application, the terminal device will also determine the optimization relationship between the first item and the second item. When the execution of the first item and the second item conflicts, 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, 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 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. .

In the embodiment of this application, if it is necessary to report the measurement gap, 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. In some scenarios, the terminal device can transmit data with the second network device without switching the serving cell. In some scenarios, 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. Referring to Figure 1B, 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. 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.

In the scenario shown in Figure 1B, 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. Referring to Figure 1C, 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.

The technical solution of the present application will be introduced below with reference to specific embodiments.

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:

201. The network device sends the first reference signal to the terminal device. Correspondingly, 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.

Optionally, 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.

202. 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:

1. Determine the target timing difference through the first reference signal and the second reference signal.

202a. 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). In this application, the synchronization signal sent by the network device can also be described as sending SSB.

In a possible implementation manner, 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.

In a possible implementation, 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.

In another possible implementation, 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.

2. 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).

203. The terminal device sends at least one of timing indication information and target timing difference to the network device. Correspondingly, 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.

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.

When the timing indication information and the target timing difference are carried through the first message and the second message, 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. .

Taking timing indication information sent through a measurement report as an example, 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. In the embodiment of the present application, the timing indication information is used to indicate whether the target timing difference exceeds the timing range.

Optionally, if 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. It can also be understood that 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°. In other words, 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.

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.

If 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.

It should be noted that in this embodiment of the present application, there may be multiple first reference signals. In this way, 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.

Taking the reporting of timing indication information through a measurement report as an example, the form of the measurement report reported by the terminal device can be understood with reference to Figure 3A and Figure 3B.

Referring to Figure 3A, 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. For example, in the order from top to bottom in Figure 3A, 7 bits represent the receiving power of the terminal device for the reference signal Resource#1, and 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, and 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. Among them, according to the order from top to bottom in Figure 3A, 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.

Please refer to Figure 3B. Figure 3B illustrates the reporting form of a measurement report for a signal pair/beam pair. Among them, 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.

Among them, Resource#1 and Resource#5 are a pair, Resource#2 and Resource#6 are a pair, Resource#3 and Resource#7 are a pair, and Resource#4 and Resource#8 are a pair. It can also be understood that 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. In the embodiment of this application, 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. As shown in Figure 3B, 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. Among them, 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.

In the above schematic diagrams in FIGS. 3A and 3B , the timing indication information is represented by 0 or 1 to indicate whether the target timing difference exceeds the timing range. In this method, the corresponding instruction function is completed in a simple way and with the smallest bytes.

Optionally, 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.

1. The timing indication information and the target timing difference are represented by a binary value greater than 1 bit.

In this possible implementation, the binary value larger than 1 bit can be understood as timing indication information, or can also be understood as a target timing difference. For example, when 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.

Please refer to Figure 4. The resource identification and reference signal received power can be understood with reference to Figure 3A. What is different from Figure 3A is that in Figure 4, the timing indication information is represented by 3 bits. In this example, every increase of 1 represents an excess of 1CP. Among them, 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.

In this possible implementation, 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.

In the embodiment of the present application, whether a measurement gap is required, 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.

2. Report the target timing difference through a second message independent of the measurement report.

Regarding individual reporting, it can be reported through MAC CE or PUCCH. What is reported individually can be that the target timing difference is out of range, or it can be the specific value of the target timing difference. The second message can be MAC CE or PUCCH, or other messages.

203a. The terminal device sends a second message to the network device, and the second message carries the target timing difference.

Optionally, the embodiment shown in Figure 2 also includes 201a and 201b. 201a and 201b can be executed before 201.

201a. 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. In this possible implementation, 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.

Optionally, 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 . When 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.

Optionally, 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.

201b. 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:

1. Whether the terminal equipment supports timing measurement based on downlink signals.

2. 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)).

3. Whether the terminal device supports determining the target timing difference based on the first reference signal.

4. Whether the terminal device supports reporting the target timing difference in the measurement report.

5. Whether the terminal device supports reporting the target timing difference.

In the embodiment of this application, in the scenario of information reporting, the capability information of the terminal device may also include at least one of the following:

6. Whether the terminal equipment needs to measure the gap.

7. Whether the terminal device supports reporting measurement gaps.

8. Whether the terminal device supports the threshold value A for reporting the measurement gap.

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 μs (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 μs, 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.

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.

In this possible implementation, 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.

It should be noted that the above 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.

Optionally, in addition to the previously described method of expressing timing indication information by using 0 or 1, etc., 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. In this possible implementation, the timing indication information is expressed using capability values or capability value sets, and a representation method of timing indication information is added.

Optionally, 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. At present, if the number of SRS ports on the antenna panel of the terminal equipment is the same, it is represented by the same capability value or capability value set. It should be noted that 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.

As shown in Figure 5A, 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. 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.

In the embodiment of this application, if it is determined that the target timing difference exceeds the timing range according to the previously introduced steps 201 and 202, 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. To represent, as shown in Figure 5B, the SRS port numbers of antenna panel 501 and antenna panel 502 are the same. In the initial capability value reported by the terminal device, the capability value of antenna panel 1 is capability value #1, and in this measurement report , the capability value of antenna panel 1 reported by the terminal device is capability value #3. For example, 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:

Table 1: Information in the measurement report

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, and 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.

If the network device does not maintain the information of the antenna panel, 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. They 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.

In a possible implementation, 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. As shown in Table 1, 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. However, in the measurement report, 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.

As can be seen from the previous introduction, 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. In this way, 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.

When the target timing difference exceeds 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.

Regarding the method of expressing timing indication information through capability values or capability value sets, if the target timing difference needs to be reported, 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.

In the above technical solution, 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.

In the embodiment of a possible timing indication method introduced above, in the embodiment of the present application, 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 .

Please refer to Figure 6. Another embodiment of the timing indication method provided by the embodiment of the present application includes:

601. The terminal device measures the first reference signal sent by the network device.

602. The terminal device determines the target timing difference based on the first reference signal.

603. The terminal device sends the measurement result/first message to the network device. Correspondingly, 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.

603a. If only timing indication information is reported in the measurement result/first message, 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.

Optionally, 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.

In the timing indication method described above, 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.

Referring to Figure 7, another embodiment of the timing indication method provided by this application may include:

701. The terminal device measures the first reference signal sent by the network device.

702. The terminal device sends a measurement report/first message to the network device. Correspondingly, 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.

Optionally, after step 701, 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, and 702a can be understood by referring to the previous step 203a. In fact, compared with the previous embodiment of FIGS. 2 to 6 , only 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. In this case, 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.

The communication device provided by the embodiment of the present application is described below. Please refer to FIG. 8 , which 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. For details, please refer to the relevant introduction in the above method embodiments.

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.

Optionally, 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. 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.

Optionally, 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.

It should be noted that the communication device 800 may include a sending module but not a receiving module. Alternatively, 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.

As an example, 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.

Optionally, the transceiver module 801 is also used to perform step 201b in the embodiment shown in FIG. 2 .

As an example, 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 .

As an example, 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 .

In another embodiment of the present application, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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, and the second item is the transmission or reception of target resources or target signals of the serving cell.

Optionally, 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.

Optionally, 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.

Optionally, 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.

It should be understood that the specific process of each module performing the above corresponding steps has been described in detail in the above method embodiments, and will not be described again for the sake of brevity.

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.

The communication device provided by the embodiment of the present application is described below. Please refer to Figure 9. 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. For details, please refer to the relevant introduction in the above method embodiment.

The communication device 900 includes a transceiver module 901. Optionally, 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.

Optionally, 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.

It should be noted that the communication device 900 may include a sending module but not a receiving module. Alternatively, 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.

As an example, 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.

Optionally, the transceiver module 901 is also used to perform step 201a in the embodiment shown in FIG. 2 .

In another embodiment of the present application, 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.

Optionally, 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.

Optionally, 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.

It should be understood that the specific process of each module performing the above corresponding steps has been described in detail in the above method embodiments, and will not be described again for the sake of brevity.

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.

Optionally, the communication device 1000 includes one or more processors 1010 .

Optionally, as shown in FIG. 10 , the communication device 1000 may further include a memory 1020 .

Optionally, the communication device 1000 may include one or more memories 1020 .

Optionally, the memory 1020 can be integrated with the processor 1010 or provided separately.

Optionally, as shown in Figure 10, the communication device 1000 may also include a transceiver 1030, which is used for receiving and/or transmitting signals. For example, the processor 1010 is used to control the transceiver 1030 to receive and/or transmit signals.

As a solution, the communication device 1000 is used to implement the operations performed by the terminal device in the above method embodiment.

For example, the processor 1010 is used to implement the processing-related operations performed by the terminal device in the above method embodiment, and the transceiver 1030 is used to implement the transceiver-related operations performed by the terminal device in the above method embodiment.

As another solution, the communication device 1000 is used to implement the operations performed by the network device in the above method embodiment.

For example, the processor 1010 is used to implement the processing-related operations performed by the network device in the above method embodiment, and the transceiver 1030 is used to implement the transceiver-related operations performed by the network device in the above method embodiment.

This embodiment of the present application also provides a communication device 1100. 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.

When the communication device 1100 is a terminal device, FIG. 11 shows a simplified structural schematic diagram of the terminal device. As shown in Figure 11, 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.

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. When data is sent to the terminal device, 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. For ease of explanation, 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.

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.

As shown in Figure 11, 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., and the transceiver 1130 may also be called a transceiver unit, a transceiver, a transceiver device, etc.

Alternatively, the components in the transceiver 1130 used to implement the receiving function can be regarded as a receiving unit, and 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.

For example, in one implementation, the processor 1110 is configured to perform processing actions on the terminal device side in the embodiment shown in FIG. 2 , and the transceiver 1130 is configured to perform sending and receiving actions on the terminal device side in FIG. 2 . For example, 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 . Optionally, the transceiver 1130 is also used to perform the sending and receiving operations of step 201b in the embodiment shown in FIG. 2 .

For example, in one implementation, 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 .

For example, in one implementation, 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 .

It should be understood that 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 .

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.

This embodiment of the present application also provides a communication device 1200. 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.

When the communication device 1200 is a network device, it is, for example, a base station. Figure 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. Optionally, 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., and 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.

For example, in one implementation, 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 .

It should be understood that 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 .

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.

For example, 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. 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.

In a possible implementation, the input of the chip device corresponds to the receiving operation in the embodiment shown in FIGS. 2 to 7 , and the output of the chip device corresponds to the sending operation in the embodiment shown in FIGS. 2 to 7 . operate.

Optionally, the processor is coupled to the memory through an interface.

Optionally, the chip device further includes a memory, in which computer programs or computer instructions are stored.

Among them, 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.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the explanation and beneficial effects of the relevant content in any of the communication devices provided above can be referred to the corresponding method embodiments provided above, and will not be repeated here. Repeat.

In this embodiment of the present application, 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. Among them, 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.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, 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.

In addition, 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.

If 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. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product. 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.

As mentioned above, the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make the foregoing technical solutions. The technical solutions described in each embodiment may be modified, or some of the technical features may be equivalently replaced; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of each embodiment of the present application.

Claims (34)

1. A method of timing indication, characterized by including:

   The terminal device receives the first reference signal sent by the network device;

   The terminal device determines a 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, where the timing indication information is used to indicate whether the target timing difference exceeds a timing range.
2. The method of claim 1, further comprising:

   The terminal device measures the first reference signal to obtain a measurement report of the first reference signal;

   The terminal device sends at least one of timing indication information and the target timing difference to the network device, including:

   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.
3. The method according to claim 1 or 2, characterized in that, the method further includes:

   The terminal device receives a second reference signal. The second reference signal is a synchronization signal sent by the network device to the terminal device through a synchronization signal block SSB, or the second reference signal is the same as the first reference signal. The signals are a pair of signals received by the terminal device and belong to different measurement resource sets;

   The terminal device determines a target timing difference based on the first reference signal, including:

   The terminal device determines a reception timing difference between the first reference signal and the second reference signal as the target timing difference.
4. The method according to any one of claims 1-3, characterized in that the method further includes:

   The terminal device receives 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 the target timing difference.
5. The method according to claim 4, characterized in that before the terminal device receives the 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 device supports timing measurement based on downlink signals, and all requirements for timing measurement based on downlink signals by the terminal device. The bandwidth of the first reference signal is greater than a 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 a measurement report, and the Whether the terminal device supports reporting the target timing difference.
6. The method according to any one of claims 1 to 5, characterized in that 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 an initial capability value or an 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 is established between the terminal device and the network device. The capability value or capability value set of the detection reference signal SRS port during communication connection.
7. The method according to any one of claims 1-6, characterized in that 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 a target beam according to the target uplink transmission timing, and the target beam is an uplink transmission beam determined by the terminal device using the beam that receives the first reference signal as a reference.
8. A method of timing indication, characterized by including:

   The network device sends the first reference signal to the terminal device;

   The network device receives at least one of timing indication information and a target timing difference from the terminal device, the target timing difference being determined by the terminal device based on the first reference signal;

   The network device determines whether the target timing difference exceeds a timing range based on at least one of the timing indication information and the target timing difference.
9. The method according to claim 8, characterized in that the network device receives at least one of timing indication information and target timing difference from the terminal device, including:

   The network device receives a measurement report of the first reference signal from a terminal device, and at least one of the timing indication information and the target timing difference is included in the measurement report.
10. The method according to claim 8 or 9, characterized in that, 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. The target uplink transmission timing is used for the uplink transmission of the terminal device on a target beam. The target beam is the terminal device to receive the The beam of the first reference signal is used as the uplink transmission beam determined by the reference.
11. The method according to any one of claims 8-10, characterized in that the method further includes:

    The network device sends configuration information to the terminal device, where 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.
12. The method according to claim 11, characterized in that 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. The capability information includes at least one of the following: whether the terminal device supports timing measurement based on downlink signals, and whether the terminal device supports timing measurement based on downlink signals. The bandwidth of the first reference signal is greater than a 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 a measurement report, and the Whether the terminal device supports reporting the target timing difference.
13. The method according to any one of claims 1-12, characterized in that 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.
14. The method according to any one of claims 1 to 13, characterized in that 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. The device's uplink transmission 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 device is suitable for the uplink transmission of the terminal device on the target beam;

    Wherein, the target beam is determined by the terminal device using the beam that receives the first reference signal as a reference. Uplink transmit beam.
15. The method according to claim 4 or 11, characterized in that the configuration information also includes information associated with the first indication information, and the information associated with the first indication information includes an SSB index, 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 difference when reporting a measurement report of the reference signal corresponding to the at least one index.
16. The method according to claim 15, characterized in that the configuration information further 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 the at least one index has quasi-colocation. When reporting the measurement of the co-located reference signal, the target timing difference is reported.
17. The method according to any one of claims 1 to 16, characterized in that the timing indication information is represented by a 1-bit binary value; or, the timing indication information and the target timing difference are represented by a binary value greater than 1 bit. To represent.
18. The method according to any one of claims 1 to 16, characterized in that the timing indication information is represented by a target capability value or a set of target capability values, and the target capability value or the set of target capability values represents the The uplink transmission capability value or capability value set when the terminal device determines whether the target timing difference exceeds the timing range.
19. The method according to claim 18, characterized in that the target capability value or target capability value set of the terminal device is the capability of the detection reference signal SRS port when the terminal device determines whether the target timing difference exceeds the timing range. A collection of values or ability values.
20. The method according to claim 19, characterized in that 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, When the target capability values or target capability value sets of the SRS ports are the same, it indicates that the target timing difference does not exceed the timing range.
21. The method according to claim 18 or 19, characterized in that 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 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.
22. The method of claim 20, wherein the network device determines whether the target timing difference exceeds a timing range based on at least one of the timing indication information and the target timing difference, including:

    The network device compares the target capability value with an initial capability value, or the network device compares the target capability value set with an initial capability value set, wherein the initial capability value or initial capability value 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;

    If the target capability value is different from the initial capability value of the terminal device, or the set of target capability values is different from the set of initial capability values of the terminal device, then 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 set of target capability values is equal to the set of initial capability values of the terminal device: then the network device determines that the target timing difference does not exceed the timing range. .
23. A method of reporting information, characterized by including:

    The terminal equipment receives the first reference signal from the target cell;

    The terminal device 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, the measurement gap, or a target time difference, wherein the measurement gap is used for the terminal The device measures the target cell or the reference signal of the target cell. The target time difference is a signal reception time difference, a signal arrival time difference or a synchronization time difference. The signal reception time difference is the signal received by the terminal device from the target cell. The time difference between the signal and the signal received from 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 synchronization of the serving cell The time difference between the signal and the synchronization signal of the target cell.
24. The method according to claim 23, characterized in that 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.
25. The method according to claim 23 or 24, characterized in that 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 at least one of the following information to a serving cell based on the first reference signal and target information, where the target information includes a downlink timing difference between the serving cell and the target cell, the service The downlink timing of the cell, and at least one of the second reference signals, the second reference signals are reference signals of other cells except the target cell.
26. The method according to any one of claims 23-25, characterized in that the method further 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, and the first item is based on the measurement The gap performs measurement of the periodic first reference signal of the target cell, and the second item is the transmission or reception of target resources or target signals of the serving cell.
27. The method according to any one of claims 23-26, characterized in that the method further includes:

    After the terminal device switches from the serving cell to the target cell, it reports to the target cell whether at least one of a measurement gap, the measurement gap, or a target time difference is required.
28. The method according to any one of claims 23 to 27, characterized in that before the terminal device receives the first reference signal from the target cell, the method further includes:

    The terminal device reports capability information to the serving cell. The capability information includes at least one of the following: whether the terminal device requires the measurement gap, whether the terminal device supports reporting the measurement gap, and whether the terminal device Whether the device supports reporting the threshold value of the measurement gap.
29. The method according to claim 28, characterized in that the terminal device reports whether a measurement gap is needed or reports the measurement gap, including:

    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 the measurement gap.
30. A communication device, characterized in that the communication device includes a transceiver module and a processing module, and the transceiver module is used to perform the transceiver of the method described in any one of claims 1 to 7, 8-22, and 23-29. Operation, the processing module is configured to perform the processing operation of the method described in any one of claims 1 to 7, 8-22, and 23-29.
31. A communication device, characterized in that the communication device includes:

    Memory, used to store computer instructions;

    A processor, configured to execute computer programs or computer instructions stored in the memory, so that the communication device performs the method according to any one of claims 1 to 29.
32. A communication device, characterized in that the communication device includes a processor, and the processor is configured to perform the method according to any one of claims 1 to 29.
33. A computer-readable storage medium, characterized in that a computer program is stored thereon. When the computer program is executed by a communication device, the communication device causes the communication device to perform the method according to any one of claims 1 to 29.
34. A computer program product, characterized by comprising instructions that, when run on a computer, cause the computer to perform the method according to any one of claims 1 to 29.