COMMUNICATION METHOD AND COMMUNICATION DEVICE

Abstract

The present application provides a communication method and a communication device for improving the positioning accuracy of a terminal device. In the method, a terminal device receives first configuration information, the first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, where n is an integer greater than 1. The terminal device transmits n sounding reference signals based on the first configuration information, and the n sounding reference signals are carried in the same time domain resource unit. In some embodiments, a signal received by a receiver of the n sounding reference signals is a signal obtained by performing carrier aggregation on the n sounding reference signals on the n corresponding carriers. The bandwidth aggregation characteristics of each carrier are used, so that the receiver of the n sounding reference signals can obtain a more accurate positioning measurement result in a carrier aggregation (CA) positioning manner.

Description

[Technical field]

[0001] This application claims priority to Chinese Patent Application No. 202210283823.4, entitled "COMMUNICATION METHOD AND COMMUNICATION DEVICE," filed with the State Intellectual Property Office of the People's Republic of China on March 22, 2022, which is hereby incorporated by reference in its entirety.

[0002] The present application relates to the field of communications technology, and in particular to a communication method and device. [Background technology]

[0003] Positioning is one of the important functions in a mobile communication system. In the process of performing positioning, a terminal device can send a reference signal used for positioning to a network device, so that the network device performs measurement according to the reference signal used for positioning to obtain a measurement result and position the terminal device.

[0004] At present, it is generally believed that the positioning accuracy of a terminal device is mainly determined by the carrier bandwidth occupied by the reference signal used for positioning. That is, the larger the carrier bandwidth occupied by the reference signal, the higher the positioning accuracy obtained by the network device based on the reference signal. Conversely, the smaller the carrier bandwidth occupied by the reference signal, the lower the positioning accuracy obtained by the network device based on the reference signal.

[0005] However, since the reference signal used for positioning and another signal (such as data or control signaling) sent by the terminal device are usually carried on the same carrier, the bandwidth of the carrier occupied by the reference signal used for positioning is reduced or even preempted. Therefore, how to improve the positioning accuracy has become a technical problem that needs to be urgently solved. Summary of the Invention

[0006] The present application provides a communication method and a communication apparatus for improving the positioning accuracy of a terminal device. [Means for solving the problem]

[0007] A first aspect of an embodiment of the present application provides a communication method. The method is executed by a terminal device, or the method is executed by some components (e.g., a processor, a chip, or a chip system) in the terminal device, or the method can be implemented by a logic module or software that can implement all or part of the functions of the terminal device. In the first aspect and possible implementation of the first aspect, an example in which the communication method is executed by a terminal device is used for explanation. In the method, a terminal device receives first configuration information, the first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1.

[0008] Based on the above technical solution, in the first configuration information received by the terminal device, the first configuration information is used to configure n sounding reference signals used for positioning, and the carrier corresponding to at least one of the n sounding reference signals is a positioning carrier. Therefore, the terminal device can then transmit at least one of the n sounding reference signals on the positioning carrier based on the first configuration information. In this manner, in order to improve the positioning accuracy of the terminal device, the situation in which the carrier bandwidth is reduced because the reference signal used for positioning and another signal (e.g., data or control signaling) are carried on the same carrier can be avoided, and even the situation in which the carrier is preempted can be avoided.

[0009] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which may alternatively be expressed as the first configuration information is used to configure n signals used for positioning. The name of this signal used for positioning in current communication systems may be a sounding reference signal (SRS). In future communication systems, the name of SRS may change as the communication system evolves.

[0010] Additionally, in this application, a "positioning carrier" may also be referred to as a carrier dedicated to positioning, a carrier used for positioning, a sounding reference signal dedicated carrier (SRS-only carrier), a positioning dedicated carrier, a positioning dedicated uplink carrier (positioning dedicated UL carrier), a positioning secondary cell, a sounding signal dedicated secondary cell, or by another name, without being limited herein. It should be noted that in this application, the positioning carrier being on the frequency division duplexing spectrum (FDD spectrum, also referred to as paired spectrum in the protocol) means that communication (PDCCH / PDSCH) reception is not configured on the downlink carrier and communication (PUCCH / PUSCH) transmission is not configured on the uplink carrier, and the positioning carrier being on the time division duplexing spectrum (TDD spectrum, also referred to as unpaired spectrum in the protocol) and unlicensed TDD spectrum (shared access spectrum in the protocol) means that communication (PDCCH / PDSCH) reception is not configured when the carrier is used for downlink and communication (PUCCH / PUSCH) transmission is not configured when the carrier is used for uplink.

[0011] In one possible implementation of the first aspect, the terminal device transmits n sounding reference signals based on the first configuration information, where the n sounding reference signals are carried in the same time domain resource unit.

[0012] Based on the above technical solution, after receiving the first configuration information, the terminal device transmits n sounding reference signals in the same time domain resource unit based on the first configuration information, so that the receiver of the n sounding reference signals can perform measurement based on the n sounding reference signals to position the terminal device. In other words, the signal received by the receiver of the n sounding reference signals is a signal obtained by performing carrier aggregation on the n sounding reference signals on the n corresponding carriers. The bandwidth aggregation characteristics of each carrier are used, so that the receiver of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner.

[0013] It should be noted that in this application, the network device that transmits the first configuration information to the terminal device and the network device that receives the n sounding reference signals may be the same network device or may be different network devices, which is not limited in this specification.

[0014] Optionally, in the same time domain resource unit, the time domain resource unit may be a symbol, a slot, a subframe, a frame, or another time domain resource unit, which is not limited herein.

[0015] In one possible implementation of the first aspect, before the terminal device receives the first configuration information, the method further includes a step of the terminal device transmitting first information, the first information indicating capability information of the terminal device.

[0016] Based on the above technical solution, the terminal device can further send first information indicating the capability information of the terminal device, so that after receiving the first information, the network device can determine the capability of the terminal device based on the first information, and use the first information as one of the bases for determining the first configuration information.

[0017] In one possible implementation of the first aspect, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0018] Based on the above technical solution, the first information indicating the capability information of the terminal device may include at least one of the above, so that the network device determines based on the first information that the terminal device has the capability of transmitting a sounding reference signal on the positioning carrier, and delivers the first configuration information to the terminal device.

[0019] In one possible implementation of the first aspect, the terminal device transmitting the n sounding reference signals based on the first configuration information includes the terminal device transmitting the n sounding reference signals based on the first configuration information when no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and the first signal includes at least one of a physical downlink control channel (PDCCH) signal, a physical downlink shared channel (PDSCH) signal, a physical uplink shared channel (PUSCH) signal, and a physical uplink control channel (PUCCH).

[0020] Based on the above technical solution, after receiving the first configuration information, the terminal device may need to transmit n sounding reference signals based on the first configuration information. In this process, if it determines that no conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the terminal device can transmit the n sounding reference signals based on the first configuration information. In other words, if it determines that the n sounding reference signals do not conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource, the terminal device transmits the n sounding reference signals based on the first configuration information to avoid transmission failure of the n sounding reference signals when avoiding the influence on the transmission of other scheduled signals.

[0021] In one possible implementation of the first aspect, the method further includes a step of determining that the terminal device does not transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0022] Based on the above technical solution, the terminal device may not need to transmit the n sounding reference signals after receiving the first configuration information. In this process, if it is determined that a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the terminal device can determine not to transmit the n sounding reference signals. In other words, if it is determined that the n sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource, the terminal device transmits the first signal instead of the n sounding reference signals to avoid affecting the transmission of the other scheduled signals.

[0023] It should be noted that when the "same time domain resource unit" is the same slot, subframe, or frame, the same time domain resource unit may include multiple symbols. In this case, the terminal device determines not to transmit n sounding reference signals on conflicting symbols in the same time domain resource unit, which can also be expressed as follows: the terminal device determines not to transmit n sounding reference signals on conflicting symbols in the same time domain resource unit. In other words, the terminal device can transmit n sounding reference signals on non-conflicting symbols in the same time domain resource unit.

[0024] For example, when the same time domain resource unit is four symbols in a slot, but a conflict occurs in only one symbol, the terminal device determines not to transmit the n sounding reference signals, which can also be expressed as follows: the terminal device determines not to transmit the n sounding reference signals in that symbol. In other words, the terminal device can further transmit the n sounding reference signals in the other three symbols.

[0025] In one possible implementation of the first aspect, the first configuration information further includes seventh instruction information, where the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0026] It should be understood that in this implementation, the seventh indication information can also be expressed as follows: the seventh indication information indicates that the same time-domain resource unit is not used to carry n sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0027] Based on the above technical solution, the first configuration information received by the terminal device may further include seventh indication information, where the seventh indication information indicates that the terminal device should not transmit all of the n sounding reference signals when a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the seventh indication information that the n sounding reference signals do not need to be transmitted when the n sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0028] Optionally, the seventh indication information may alternatively be carried in another message different from the first configuration information, which is not limited herein.

[0029] In one possible implementation of the first aspect, the method further includes a step of determining that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0030] Based on the above technical solution, the terminal device may not need to transmit n sounding reference signals after receiving the first configuration information. In this process, if it is determined that a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals, the terminal device may determine not to transmit some of the n sounding reference signals, i.e., the terminal device may determine not to transmit one or more sounding reference signals. In other words, if it is determined that one or more of the n sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) in the corresponding time-frequency domain resource, in order to avoid affecting the transmission of other scheduled signals, the terminal device may (stop transmitting and receiving signals, or) transmit other scheduled signals instead of the n sounding reference signals in the time-frequency domain resource corresponding to one or more sounding reference signals.

[0031] In one possible implementation of the first aspect, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0032] It should be understood that in this implementation, the eighth instruction information can also be expressed as follows: the eighth instruction information indicates that the same time-domain resource unit is not used to carry one or more sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0033] Based on the above technical solution, the first configuration information received by the terminal device may further include eighth indication information, where the eighth indication information indicates that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the eighth indication information that one or more sounding reference signals do not need to be transmitted when the one or more sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0034] Optionally, the eighth indication information may alternatively be carried in another message different from the first configuration information, which is not limited herein.

[0035] In one possible implementation of the first aspect, the method further comprises a step of receiving, by the terminal device, second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or tenth indication information, the tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; The method further includes at least one of the steps of:

[0036] The terminal device determines, based on the second information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0037] Based on the above technical solution, the terminal device can further receive second information including at least one piece of information, so that the terminal device determines, based on the at least one piece of information, that a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit one or more sounding reference signals).

[0038] In one possible implementation of the first aspect, the method further includes a step of receiving an eleventh indication by the terminal device, the eleventh indication instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH. The terminal device determines a first symbol set, the first symbol set being a symbol occupied by the first signal, or the first symbol set being a union set of a symbol occupied by the first signal and a switching symbol, the switching symbol being located before the symbol occupied by the first signal or after the symbol occupied by the first signal, and the number of switching symbols being determined by a first switching time. If the first symbol set includes at least one symbol corresponding to the same time domain resource unit, the terminal device determines that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0039] It should be noted that the first switching time is used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, where the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier.

[0040] Based on the above technical solution, the terminal device can further receive eleventh indication information, which instructs to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, and further determines a first symbol set according to the eleventh indication information. The first symbol set is a symbol occupied by the first signal, or the first symbol set is a union set of the symbol occupied by the first signal and a switching symbol. In addition, when the first symbol set includes at least one symbol corresponding to the same time domain resource unit, in order to avoid affecting the transmission of the first signal, the terminal device determines that a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit one or more sounding reference signals).

[0041] It should be understood that the eleventh indication information may be semi-static configuration information (e.g., radio resource control (RRC) configuration) or dynamic scheduling information (e.g., downlink control information (DCI) scheduling), which is not limited in this specification.

[0042] In one possible implementation of the first aspect, the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal.

[0043] In one possible implementation of the first aspect, the positioning carrier is used only for transmitting the sounding reference signal, or the positioning carrier is used only for transmitting the sounding reference signal and the physical random access channel (PRACH) signal.

[0044] Based on the above technical solution, the carrier corresponding to at least one of the n sounding reference signals configured using the first configuration information is a positioning carrier, and the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal, that is, the positioning carrier does not need to adapt to the transmission and reception of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal. Therefore, for a terminal device, the terminal device only needs to support the transmission and reception of signals on the positioning carrier in the radio frequency module (the signal includes a sounding reference signal, or the signal includes a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the terminal device and to implement low-cost carrier aggregation (CA) positioning, the terminal device only needs to have a simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0045] Similarly, for a network device, the network device only needs to support transmitting and receiving signals on the positioning carrier in the radio frequency module (wherein the signals include a sounding reference signal, or wherein the signals include a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the network device and to implement low-cost CA positioning, the network device only needs to have simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0046] In one possible implementation of the first aspect, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0047] Based on the above technical solution, since different carriers located in the same band are usually in collocated deployment (or called collocation), the uplink timing and downlink timing of different carriers located in the same band can be considered to be synchronized, and the n sounding reference signals transmitted by the terminal device can share the same synchronization information to reduce overhead.

[0048] Optionally, when n is 3 or greater, at least two of the n carriers corresponding to the n sounding reference signals are located in the same band.

[0049] In one possible implementation of the first aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0050] Based on the above technical solution, when a terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or have a phase difference, so that a receiving side of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner by using the bandwidth aggregation characteristics of each carrier.

[0051] It should be understood that in this application, n sounding reference signals sharing an antenna port means that the channel conditions of the n sounding reference signals can be inferred from each other. In the protocol (TS 38.211), an antenna port is defined as follows: An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed.

[0052] It should be noted that the above scheme can also be expressed as follows: A channel on which a symbol on which an antenna port is located is transferred (by using a reference signal or via a physical layer channel) can be inferred from a channel on which a symbol on which the same antenna port is located is transferred (by using a reference signal or via a physical layer channel). In other words, the channels on which two symbols are transferred can be inferred from each other. In this case, the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols on which the two reference signals are mapped correspond to the same antenna port.

[0053] Optionally, the two signals share an antenna port (corresponding to the same antenna port), which is the strictest requirement for the two signals in the protocol. Usually, the two signals are transmitted by the same precoding using the same physical antenna or the same physical antenna set, and in this process, no radio frequency phase jump occurs, i.e., the channels of the two signals are completely the same. In addition, the protocol allows a certain relaxation to "the channels of the two signals are completely the same". For example, the channel phase change on separate symbols caused by Doppler shift when the terminal moves at high speed or when there is a slight residual frequency offset from the transmit / receive radio frequency, which can also be considered as the same port. In this case, the receiver needs to estimate the residual Doppler frequency based on the assumption of the same port, and the channel can be considered to be completely the same after removal.

[0054] As an arbitrary choice, n sounding signals having a phase difference refers to a relationship lower than the same port requirement. Currently, the protocol does not define this concept. An example is used in which the value of n is 2. Two signals having a "phase difference" specifically means that in addition to a certain fixed random phase difference between the two signals, the channels can be inferred from each other. This case specifically corresponds to two signals being transmitted by the same precoding using the same physical antenna or the same set of physical antennas, and in this process, there may be a radio frequency phase jump between the two signals, i.e., the channels of the two signals are completely the same except for the random radio frequency phase. The main reason for the radio frequency phase jump is that the two signals use independent local oscillators for upconversion or downconversion, and the two independent local oscillators do not have a consistent initial phase or a stable initial phase. This results in a phase difference between the two signals. A similar mitigation is allowed in the presence of Doppler.

[0055] Note that having a phase difference and having Doppler are different from each other, even though they are both visually phase changes. Doppler is primarily used to describe the case where the phase of two signals on the same frequency (e.g., same CC / BWP) changes essentially linearly with time. Phase difference is primarily used to describe the case where the phase of two signals on different frequencies (e.g., different CC / BWP) does not change linearly with time.

[0056] A second aspect of the present application provides a communication method. The method is executed by a network device, or the method is executed by some components (e.g., a processor, a chip, or a chip system) in the network device, or the method can be implemented by a logic module or software that can perform all or part of the functions of the network device. In the second aspect and one possible implementation of the second aspect, an example in which the communication method is executed by the network device is used for explanation. In the method, the network device determines first configuration information, the first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, the n sounding reference signals are carried in the same time domain resource unit, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1. The network device transmits the first configuration information.

[0057] Based on the above technical solution, in the first configuration information determined by the network device, the first configuration information is used to configure n sounding reference signals used for positioning, and the carrier corresponding to at least one of the n sounding reference signals is a positioning carrier. Therefore, after receiving the first configuration information, the terminal device can continue to transmit at least one of the n sounding reference signals on the positioning carrier based on the first configuration information. In order to improve the positioning accuracy of the terminal device, in this manner, the positioning carrier carries at least one sounding reference signal, the situation in which the carrier bandwidth is reduced because the reference signal used for positioning and another signal (e.g., data or control signaling) are carried on the same carrier can be avoided, and even the situation in which the carrier is preempted can be avoided.

[0058] In addition, since the n sounding reference signals are carried in the same time domain resource unit, the signal transmitted by the terminal device is a signal obtained by performing carrier aggregation on the n sounding reference signals on the n corresponding carriers. The bandwidth aggregation characteristics of each carrier are used, so that the receiver of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner.

[0059] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which may alternatively be expressed as the first configuration information is used to configure n signals used for positioning. The name of this signal used for positioning in current communication systems may be a sounding reference signal (SRS). In future communication systems, the name of SRS may change as the communication system evolves.

[0060] In addition, the network device that transmits the first configuration information to the terminal device and the network device that receives the n sounding reference signals may be the same network device or may be different network devices, which is not limited in this specification.

[0061] Optionally, in the same time domain resource unit, the time domain resource unit may be a symbol, a slot, a subframe, a frame, or another time domain resource unit, which is not limited herein.

[0062] In one possible implementation of the second aspect, before the network device transmits the first configuration information, the method further includes a step of the network device receiving the first information, the first information indicating capability information of the terminal device. The network device determines the first configuration information based on the first information.

[0063] Based on the above technical solution, the network device can further receive first information indicating capability information of the terminal device, so that after receiving the first information, the network device can determine the capability of the terminal device based on the first information, and use the first information as one of the bases for determining the first configuration information.

[0064] In one possible implementation of the second aspect, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0065] Based on the above technical solution, the first information indicating the capability information of the terminal device may include at least one of the above, so that the network device determines based on the first information that the terminal device has the capability of transmitting a sounding reference signal on the positioning carrier, and delivers the first configuration information to the terminal device.

[0066] In one possible implementation of the second aspect, the first configuration information further includes seventh instruction information, where the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0067] It should be understood that in this implementation, the seventh indication information can also be expressed as follows: the seventh indication information indicates that the same time-domain resource unit is not used to carry n sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0068] Based on the above technical solution, the first configuration information sent by the network device may further include seventh indication information, where the seventh indication information indicates that the terminal device does not transmit all of the n sounding reference signals when a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the seventh indication information that the n sounding reference signals do not need to be transmitted when they conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0069] In one possible implementation of the second aspect, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0070] It should be understood that in this implementation, the eighth instruction information can also be expressed as follows: the eighth instruction information indicates that the same time-domain resource unit is not used to carry one or more sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0071] Based on the above technical solution, the first configuration information sent by the network device may further include eighth indication information, where the eighth indication information indicates that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the eighth indication information that one or more sounding reference signals do not need to be transmitted when the one or more sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0072] In one possible implementation of the second aspect, the method comprises: The network device transmitting second information, the second information comprising: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; a tenth indication, the tenth indication indicating that at least one symbol corresponding to the same time domain resource unit is preempted; or 11th indication information, the 11th indication information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH signal. At least one of the steps Further includes:

[0073] Based on the aforementioned technical solution, the network device can further send second information including at least one piece of information, so that the terminal device determines, based on the at least one piece of information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit one or more sounding reference signals).

[0074] In one possible implementation of the second aspect, the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal.

[0075] In one possible implementation of the second aspect, the positioning carrier is used only for transmitting the sounding reference signal, or the positioning carrier is used only for transmitting the sounding reference signal and the physical random access channel (PRACH) signal.

[0076] Based on the above technical solution, the carrier corresponding to at least one of the n sounding reference signals configured using the first configuration information is a positioning carrier, and the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal, that is, the positioning carrier does not need to adapt to the transmission and reception of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal. Therefore, for a terminal device, the terminal device only needs to support the transmission and reception of signals on the positioning carrier in the radio frequency module (the signal includes a sounding reference signal, or the signal includes a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the terminal device and to implement low-cost carrier aggregation (CA) positioning, the terminal device only needs to have a simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0077] Similarly, for a network device, the network device only needs to support transmitting and receiving signals on the positioning carrier in the radio frequency module (wherein the signals include a sounding reference signal, or wherein the signals include a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the network device and to implement low-cost CA positioning, the network device only needs to have simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0078] In one possible implementation of the second aspect, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0079] Based on the above technical solution, since different carriers located in the same band are usually in collocated deployment (or called collocation), the uplink timing and downlink timing of different carriers located in the same band can be considered to be synchronized, and the n sounding reference signals transmitted by the terminal device can share the same synchronization information to reduce overhead.

[0080] Optionally, when n is 3 or greater, at least two of the n carriers corresponding to the n sounding reference signals are located in the same band.

[0081] In one possible implementation of the second aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0082] Based on the above technical solution, when a terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or have a phase difference, so that a receiving side of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner by using the bandwidth aggregation characteristics of each carrier.

[0083] It should be understood that in this application, n sounding reference signals sharing an antenna port means that the channel conditions of the n sounding reference signals can be inferred from each other. In the protocol (TS 38.211), an antenna port is defined as follows: An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed.

[0084] It should be noted that the above scheme can also be expressed as follows: A channel on which a symbol on which an antenna port is located is transferred (by using a reference signal or via a physical layer channel) can be inferred from a channel on which a symbol on which the same antenna port is located is transferred (by using a reference signal or via a physical layer channel). In other words, the channels on which two symbols are transferred can be inferred from each other. In this case, the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols on which the two reference signals are mapped correspond to the same antenna port.

[0085] Optionally, the two signals share an antenna port (corresponding to the same antenna port), which is the strictest requirement for the two signals in the protocol. Usually, the two signals are transmitted by the same precoding using the same physical antenna or the same physical antenna set, and in this process, no radio frequency phase jump occurs, i.e., the channels of the two signals are completely the same. In addition, the protocol allows a certain relaxation to "the channels of the two signals are completely the same". For example, the channel phase change on separate symbols caused by Doppler shift when the terminal moves at high speed or when there is a slight residual frequency offset from the transmit / receive radio frequency, which can also be considered as the same port. In this case, the receiver needs to estimate the residual Doppler frequency based on the assumption of the same port, and the channel can be considered to be completely the same after removal.

[0086] As an arbitrary choice, n sounding signals having a phase difference refers to a relationship lower than the same port requirement. Currently, the protocol does not define this concept. An example is used in which the value of n is 2. Two signals having a "phase difference" specifically means that in addition to a certain fixed random phase difference between the two signals, the channels can be inferred from each other. This case specifically corresponds to two signals being transmitted by the same precoding using the same physical antenna or the same set of physical antennas, and in this process, there may be a radio frequency phase jump between the two signals, i.e., the channels of the two signals are completely the same except for the random radio frequency phase. The main reason for the radio frequency phase jump is that the two signals use independent local oscillators for upconversion or downconversion, and the two independent local oscillators do not have a consistent initial phase or a stable initial phase. This results in a phase difference between the two signals. A similar mitigation is allowed in the presence of Doppler.

[0087] Note that having a phase difference and having Doppler are different from each other, even though they are both visually phase changes. Doppler is primarily used to describe the case where the phase of two signals on the same frequency (e.g., same CC / BWP) changes essentially linearly with time. Phase difference is primarily used to describe the case where the phase of two signals on different frequencies (e.g., different CC / BWP) does not change linearly with time.

[0088] A third aspect of the present application provides a communication device. The device can implement the method in the first aspect or any one of the possible implementations of the first aspect. The device includes a corresponding unit or module configured to execute the method. The unit or module included in the device may be implemented by software and / or hardware. For example, the device may be a terminal device, or the device may be a component (e.g., a processor, a chip, or a chip system) in a terminal device, or the device may be a logic module or software capable of implementing all or part of the functions of a terminal device.

[0089] The communication device includes a transceiver unit and a processing unit.

[0090] The receiving unit is configured to receive first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, and n being an integer greater than 1.

[0091] The transmitting unit is configured to transmit the n sounding reference signals based on the first configuration information, where the n sounding reference signals are carried in a same time domain resource unit.

[0092] In one possible implementation of the third aspect, the sending unit is further configured to send first information, where the first information indicates capability information of the terminal device.

[0093] In one possible implementation of the third aspect, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0094] In one possible implementation of the third aspect, the apparatus further comprises a processing unit.

[0095] When the processing unit determines that no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the transmitting unit is specifically configured to transmit the n sounding reference signals based on the first configuration information, where the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

[0096] In one possible implementation of the third aspect, the processing unit is configured to decide not to transmit the n sounding reference signals if it determines that a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0097] In one possible implementation of the third aspect, the first configuration information further includes seventh instruction information, and the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to any one of the n sounding reference signals in the same time domain resource unit.

[0098] In one possible implementation of the third aspect, the processing unit is further configured to determine not to transmit one or more sounding reference signals if it determines that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0099] In one possible implementation of the third aspect, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0100] In one possible implementation of the third aspect, the receiving unit receives the second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or tenth indication information, the tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; The device is further configured to include at least one of:

[0101] The processing unit is further configured to determine, based on the second information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0102] In one possible implementation of the third aspect, the receiving unit is further configured to receive eleventh instruction information, the eleventh instruction information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH.

[0103] The processing unit is further configured to determine a first symbol set, where the first symbol set is a symbol occupied by the first signal, or the first symbol set is a union set of the symbols occupied by the first signal and a switching symbol, where the switching symbol is located before the symbol occupied by the first signal or after the symbol occupied by the first signal, and the number of switching symbols is determined by the first switching time.

[0104] If the processing unit determines that the first symbol set includes at least one symbol corresponding to the same time domain resource unit, the processing unit determines that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0105] In one possible implementation of the third aspect, the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal.

[0106] In one possible implementation of the third aspect, the positioning carrier is used only to transmit the sounding reference signal, or The positioning carrier is only used to transmit the sounding reference signal and the physical random access channel PRACH signal.

[0107] In one possible implementation of the third aspect, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0108] In one possible implementation of the third aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0109] In a third aspect of the embodiment of the present application, the configuration module of the communication device may be further configured to perform the steps performed in the possible implementation of the first aspect and achieve corresponding technical effects. For details, please refer to the first aspect. Details will not be described again in this specification.

[0110] A fourth aspect of the present application provides a communication device. The device can implement the method in the second aspect or any one of the possible implementations of the second aspect. The device includes a corresponding unit or module configured to execute the method. The unit or module included in the device may be implemented by software and / or hardware. For example, the device may be a network device, or the device may be a component (e.g., a processor, a chip, or a chip system) in a network device, or the device may be a logic module or software that can implement all or part of the functions of a network device.

[0111] The communication device includes a processing unit and a transceiver unit.

[0112] The processing unit is configured to determine first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, the n sounding reference signals being carried in the same time domain resource unit, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, and n being an integer greater than 1.

[0113] The transceiver unit is configured to transmit first configuration information.

[0114] In one possible implementation of the fourth aspect, the transceiver unit is further configured to receive first information, the first information indicating capability information of the terminal device.

[0115] The processing unit is further configured to determine first configuration information based on the first information.

[0116] In one possible implementation of the fourth aspect, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0117] In one possible implementation of the fourth aspect, the first configuration information further includes seventh instruction information, and the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to any one or more of the n sounding reference signals in the same time domain resource unit.

[0118] In one possible implementation of the fourth aspect, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0119] In one possible implementation of the fourth aspect, the transceiver unit transmits the second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; a tenth indication, the tenth indication indicating that at least one symbol corresponding to the same time domain resource unit is preempted; or 11th indication information, the 11th indication information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH signal. The device is further configured to include at least one of:

[0120] In one possible implementation of the fourth aspect, the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal.

[0121] In one possible implementation of the fourth aspect, the positioning carrier is used only to transmit the sounding reference signal, or The positioning carrier is only used to transmit the sounding reference signal and the physical random access channel PRACH signal.

[0122] In one possible implementation of the fourth aspect, n carriers corresponding to n sounding reference signals are located in the same band.

[0123] In one possible implementation of the fourth aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0124] In a fourth aspect of the embodiment of the present application, the configuration module of the communication device may be further configured to perform the steps performed in the possible implementation of the second aspect and achieve the corresponding technical effect. For details, please refer to the second aspect. Details will not be described again in this specification.

[0125] A fifth aspect of an embodiment of the present application provides a communication device including at least one processor coupled to a memory.

[0126] The memory is configured to store programs or instructions.

[0127] The at least one processor is configured to execute a program or instructions to enable the apparatus to perform a method according to the first aspect or any one of the possible implementations of the first aspect.

[0128] A sixth aspect of an embodiment of the present application provides a communication device including at least one processor coupled to a memory.

[0129] The memory is configured to store programs or instructions.

[0130] The at least one processor is configured to execute a program or instructions to enable the apparatus to perform a method according to the second aspect or any one of the possible implementations of the second aspect.

[0131] A seventh aspect of an embodiment of the present application provides a communication device including at least one logic circuit and an input / output interface.

[0132] The input / output interface is configured to input the first configuration information.

[0133] The logic circuitry is configured to perform a method according to the first aspect or any possible implementation of the first aspect.

[0134] An eighth aspect of an embodiment of the present application provides a communication device including at least one logic circuit and an input / output interface.

[0135] The input / output interface is configured to output the first configuration information.

[0136] The logic circuitry is configured to perform a method according to the second aspect or any possible implementation of the second aspect.

[0137] A ninth aspect of an embodiment of the present application provides a communication device, including a radio frequency module and a baseband processing module.

[0138] A carrier corresponding to a signal that can be transmitted or received by a radio frequency module includes carriers of (k+p) frequency domain resource units, where k and p are both integers equal to or greater than 1.

[0139] On a carrier of the k frequency domain resource units, the baseband processing module supports processing a target signal and processing a first signal, where the first signal includes a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0140] On a carrier of the p frequency domain resource units, the baseband processing module supports processing of a target signal, and the baseband processing module does not support processing of at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0141] The carriers corresponding to the n sounding reference signals are a subset of carriers of the (k+p) frequency domain resource units. The apparatus is configured to perform a method according to the first aspect or any one of the possible implementations of the first aspect, or the apparatus is configured to perform a method according to the second aspect or any one of the possible implementations of the second aspect.

[0142] Based on the above technical solution, in the communication device, the carriers corresponding to the signals that can be transmitted and received by the radio frequency module include carriers of (k+p) frequency domain resource units, but in the carriers of p frequency domain resource units, the baseband processing module does not support the processing of at least one of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, i.e., the capability of the radio frequency module of the communication device is redundant. In other words, the communication device supports full communication capability in the carriers of k frequency domain resource units, but the communication device only supports simple transmission and reception of target signals in the carriers of p frequency domain resource units, i.e., in order to simplify or save the baseband processing capability of the communication device and to implement low-cost CA positioning, the communication device only needs to have simple baseband signal processing capability in the carriers of p frequency domain resource units.

[0143] Optionally, the frequency domain resource unit may be 10 megahertz (MHz), 50 MHz, 100 MHz, 500 MHz, or another frequency domain resource unit, and this is not limited herein.

[0144] In one possible implementation of the ninth aspect, on a carrier of the p frequency domain resource units, the baseband processing module does not support processing of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0145] In one possible implementation of the ninth aspect, the target signal includes only a sounding reference signal.

[0146] In one possible implementation of the ninth aspect, the target signals include only the sounding reference signal and the PRACH signal.

[0147] It should be understood that in this application, the sounding reference signal may be alternatively expressed as a signal used for positioning. The name of the signal used for positioning in the current communication system may be a sounding reference signal (SRS). In the future communication system, the name of the SRS may change as the communication system evolves.

[0148] In one possible implementation of the ninth aspect, the communication apparatus is a terminal device, or the apparatus may be a component (e.g., a processor, chip, or chip system) within a terminal device, or the apparatus may be a logical module or software capable of implementing all or part of the functions of the terminal device.

[0149] Optionally, when the communication apparatus is a terminal device, the "(k+p) frequency domain resource units" may have different definitions for different terminal devices.

[0150] For example, for terminal device A, a carrier of "k frequency domain resource units" in which the baseband processing module of terminal device A supports processing of a target signal and processing of a first signal (denoted as a normal cell) may be band 1, and a carrier of "p frequency domain resource units" in which the terminal device A supports processing of a target signal and the baseband processing module does not support processing of at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal (denoted as an "SRS-only" cell) may correspond to band 2. For terminal device B, a normal cell supported by the baseband processing module of terminal device B may be band 2, and an "SRS-only" cell supported by the baseband processing module of terminal device B may correspond to band 3. In this example, for terminal device A, band 2 is an "SRS-only" cell. In addition, for terminal device B, band 2 is a normal cell.

[0151] In one possible implementation of the ninth aspect, the communications apparatus is a network device, or the apparatus may be a component (e.g., a processor, chip, or chip system) within a network device, or the apparatus may be a logical module or software capable of performing all or part of the functions of the network device.

[0152] A tenth aspect of an embodiment of the present application provides a computer-readable storage medium. The computer-readable storage medium is configured to store one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs a method according to the first aspect or any one of the possible implementations of the first aspect, or the processor performs a method according to the second aspect or any one of the possible implementations of the second aspect.

[0153] An eleventh aspect of an embodiment of the present application provides a computer program product (also called a computer program), which, when executed by a processor, causes the processor to execute a method according to the first aspect or any one of the possible implementations of the first aspect, or causes the processor to execute a method according to the second aspect or any one of the possible implementations of the second aspect.

[0154] A twelfth aspect of an embodiment of the present application provides a chip system, the chip system including at least one processor configured to support a communication device in performing functions according to the first aspect or any one of the possible implementations of the first aspect, or configured to support a communication device in performing functions according to the second aspect or any one of the possible implementations of the second aspect.

[0155] In one possible design, the chip system may further include a memory configured to store program instructions and data required for the communication device. The chip system may include a chip, or may include a chip and another discrete device. Optionally, the chip system may further include an interface circuit, the interface circuit providing the program instructions and / or data to the at least one processor.

[0156] A thirteenth aspect of an embodiment of the present application provides a communication system, the communication system including a communication device of the third aspect and a communication device of the fourth aspect, and / or the communication system including a communication device of the fifth aspect and a communication device of the sixth aspect, and / or the communication system including a communication device of the seventh aspect and a communication device of the eighth aspect, and / or the communication system including a communication device of the ninth aspect.

[0157] For the technical effects achieved by any of the design methods of the third to thirteenth aspects, please refer to the technical effects achieved by the implementation of each of the first and second aspects. Details will not be described again in this specification.

[0158] It should be understood that for components within a device, the aforementioned "transmit" may also be referred to as "output" and the aforementioned "receive" may also be referred to as "input."

[0159] It can be seen from the above technical solutions that the embodiments of the present application have the following beneficial effects: In order to improve the positioning accuracy of the terminal device, in the manner in which the positioning carrier carries at least one sounding reference signal, the situation in which the reference signal used for positioning and another signal (e.g., data or control signaling) are carried on the same carrier, the carrier bandwidth is reduced, and even the situation in which the carrier is preempted can be avoided. In addition, the signal received by the receiver of the n sounding reference signals is a signal obtained by performing carrier aggregation on the n sounding reference signals on the n corresponding carriers. The bandwidth aggregation characteristics of each carrier are used, so that the receiver of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner. [Brief description of the drawings]

[0160] [Figure 1] FIG. 1 is a diagram of a network architecture according to the present application. [Figure 2a] FIG. 2 is another diagram of a network architecture according to the present application. [Figure 2b] FIG. 2 is another diagram of a network architecture according to the present application. [Figure 2c] FIG. 2 is another diagram of a network architecture according to the present application. [Figure 3a]FIG. 2 is another diagram of a network architecture according to the present application. [Figure 3b] FIG. 2 is another diagram of a network architecture according to the present application. [Figure 4] FIG. 2 is a diagram of an SRS configuration scheme according to the present application. [Diagram 5] FIG. 2 is another diagram of a communication method according to the present application. [Figure 6] 1 is a diagram of a communication device according to the present application; [Figure 7] FIG. 2 is another diagram of a communication device according to the present application. [Figure 8a] FIG. 2 is another diagram of a communication method according to the present application. [Figure 8b] FIG. 2 is another diagram of a communication method according to the present application. [Figure 9] FIG. 2 is another diagram of a communication device according to the present application. [Figure 10] FIG. 2 is another diagram of a communication device according to the present application. [Figure 11] FIG. 2 is another diagram of a communication device according to the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0161] The following describes the technical solutions of the embodiments of the present application with reference to the accompanying drawings of the embodiments of the present application. Any other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0162] First, in order to facilitate understanding by those skilled in the art, some terms in the embodiments of the present application will be explained and explained.

[0163] (1) Terminal device: This may be a wireless terminal device capable of receiving scheduling and instruction information for network devices. This wireless terminal device may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity, or another processing device connected to a wireless modem.

[0164] A terminal device can communicate with one or more core networks or the Internet through a radio access network (RAN). A terminal device can be a portable terminal device such as a cell phone (also called a "cellular" phone or mobile phone), a computer, and a data card. For example, a terminal device can be a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, a terminal device can be a device such as a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a tablet computer (Pad), or a computer with wireless transceiver capabilities. A wireless terminal device may also be called a system, a subscriber unit, subscriber station, mobile station (MS), remote station, access point (AP), remote terminal device, access terminal device, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc.Alternatively, the terminal device may also be a wearable device or a terminal device of a next-generation communication system, for example a terminal device of a 5G communication system or a terminal device of a future evolved public land mobile network (PLMN).

[0165] Alternatively, by way of example and not of limitation, the terminal device in the embodiment of the present application may also be a wearable device. A wearable device may also be called a wearable intelligent device, an intelligent wearable device, etc., and is a collective term for wearable devices, such as glasses, gloves, watches, clothes, and shoes, that are intelligently designed and developed for daily wear using wearable technology. A wearable device is a portable device that is directly attached to the body or integrated into the user's clothes or accessories. A wearable device is not only a hardware device, but also performs powerful functions through software support, data exchange, and cloud interaction. In a broad sense, a wearable intelligent device includes a full-function large device that can perform all or part of its functions without relying on a smartphone, such as a smart watch or smart glasses, and also includes a device for monitoring physical signs that focuses only on one type of application function and needs to cooperate with other devices such as a smartphone, such as various smart bands, smart helmets, or smart jewelry.

[0166] However, when the above-mentioned terminal is located in a vehicle, for example, when it is placed in the vehicle or when it is installed in the vehicle, the terminal may be considered as an in-vehicle terminal. For example, the in-vehicle terminal may also be called an on-board unit (OBU).

[0167] In the embodiments of the present application, the device configured to perform the functions of the terminal may be a terminal, or may be a circuit that can support the terminal in performing the functions, for example, a circuit that can be used in a chip system. The chip system may be attached to the terminal. In the embodiments of the present application, the chip system may include a chip, or may include a chip and another discrete device. In the technical solutions provided in the embodiments of the present application, an example in which the device configured to perform the functions of the terminal is a terminal may be used to explain the technical solutions provided in the embodiments of the present application.

[0168] (2) Network device: This may include a location management function (LMF) network element. The LMF network element is configured to perform functions such as positioning. The LMF network element is an apparatus or component that is deployed in a core network and provides a positioning function to a terminal device, and may be configured to determine the location of the terminal device. In this application, the LMF network element may be replaced by another apparatus or component that provides a positioning function to a terminal device, such as a positioning server, a positioning management server, a location management function server, an LMF device, an LMF entity, an LMF network entity, or a network function. In future positioning networks, for example in 6th generation (6G) mobile communication systems, the LMF network element may continue to be an LMF network element or may have a different name. This is not limited in this application.

[0169] Optionally, the network device may further include another core network device, such as an access and mobility management function (AMF), a user plane function (UPF), or a session management function (SMF).

[0170] Alternatively, and optionally, the network device may be a device in a wireless network. For example, the network device may be a radio access network (RAN) node (or device) that connects terminal devices to a wireless network, sometimes referred to as a base station. Currently, some examples of RAN devices are a 5G communication system's next generation Node B (gNodeB), a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (Node B, NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved Node B or home Node B, HNB), a base band unit (BBU), a wireless fidelity (Wi-Fi) access point (AP), etc. In addition, in the network structure, the network devices may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

[0171] The network device can send configuration information (e.g., carried in a scheduling message and / or an instruction message) to the terminal device, and the terminal device further performs network configuration based on the configuration information, so that the network configuration of the network device and the network configuration of the terminal device are matched. Alternatively, a network configuration preset in the network device and a network configuration preset in the terminal device are used, so that the network configuration of the network device and the network configuration of the terminal device are matched. Specifically, "matching" means that when there is an interaction message between the network device and the terminal device, the network device and the terminal device have a consistent understanding of the carrier frequency for transmitting and receiving the interaction message, the determination of the type of the interaction message, the meaning of the field information carried in the interaction message, or another configuration of the interaction message.

[0172] In addition, in another possible case, the network device may be another device that provides wireless communication capabilities to the terminal device. The specific technology and specific device form used by the network device are not limited in the embodiments of the present application. For ease of explanation, this is not limited in the embodiments of the present application.

[0173] In the embodiments of the present application, the apparatus configured to implement the functions of the network device may be a network device, or may be an apparatus that can support the network device in implementing the functions, such as a chip system. The apparatus may be attached to the network device. In the technical solution provided in the embodiments of the present application, an example in which the apparatus configured to implement the functions of the network device is a network device is used to describe the technical solution provided in the embodiments of the present application.

[0174] (3) The terms "system" and "network" may be used interchangeably in the embodiments of this application. "At least one" refers to one or more, and "multiple" refers to two or more. "And / or" describes an association relationship between related objects and indicates that three relationships may exist. For example, A and / or B may indicate the following three cases: A exists alone, A and B both exist, and B exists alone, and A and B may be singular or plural. The character " / " typically indicates an "or" relationship between related objects. "At least one of the following items" or similar expressions indicates any combination of these items, including any combination of one item or multiple items. For example, "at least one of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. Additionally, unless otherwise specified, ordinal numbers such as "first" and "second" in the embodiments of the present application are used to distinguish between multiple objects and are not used to limit the order, chronology, priority, or importance of the multiple objects.

[0175] The present application may be applied to a long term evolution (LTE) system, a new radio (NR) system, or another communication system. The communication system includes a network device and a terminal device. The network device is used as a configuration information transmitting entity, and the terminal device is used as a configuration information receiving entity. Specifically, an entity in the communication system transmits configuration information to another entity, transmits data to another entity, or receives data transmitted by another entity. The other entity receives the configuration information, transmits data to the configuration information transmitting entity based on the configuration information, or receives data transmitted by the configuration information transmitting entity. The present application may be applied to a terminal device in a connected or active state (ACTIVE), or may be applied to a terminal device in an unconnected or idle state (INACTIVE) or IDLE.

[0176] In this application, unless otherwise specified, the same or similar parts in the embodiments should be mutually referenced. In the embodiments and implementations / methods / implementation methods in the embodiments of this application, the terms and / or descriptions are consistent and may be mutually referenced across separate embodiments and across implementations / methods / implementation methods in the embodiments, unless otherwise specified or logical contradiction occurs. The technical features in separate embodiments and the implementations / methods / implementation methods in the embodiments may be combined based on the internal logical relationship of the technical features to form a new embodiment, implementation, or method, implementation method. The following implementations of this application are not intended to limit the protection scope of this application.

[0177] In order to facilitate understanding of the method provided in the embodiment of the present application, the following describes the system architecture of the method provided in the embodiment of the present application. It is understood that the system architecture described in the embodiment of the present application is intended to more clearly describe the technical solutions of the embodiment of the present application, and does not constitute any limitation on the technical solutions provided in the embodiment of the present application.

[0178] Figure 1 is a diagram of a communication system according to an embodiment of the present application. Please refer to Figure 1. The communication system includes a terminal device 100, an access network device 201, and a core network device 202. The terminal device 100 and the access network device 201 can communicate with each other via a wireless link. The access network device 201 and the core network device 202 can communicate with each other.

[0179] In one implementation example, a communication system between a terminal device and an access network device may be implemented in the manner shown in Fig. 2a. Please refer to Fig. 2a. The communication system includes a terminal device 101, and the access network device may include a next generation Node B (gNB) 102, a next generation evolved Node B (ng-eNB) 103, or another access network device, etc., as shown in the figure. The terminal device 101 communicates with the access network device (e.g., gNB 102 or ng-eNB 103 in Fig. 1) through a Uu interface. The ng-eNB 103 is an access network device of a Long Term Evolution (LTE) communication system, and the gNB 102 is an access network device of an NR communication system.

[0180] In one implementation example, a communication system between an access network device and a core network device may be implemented in the manner shown in Figure 2b. Please refer to Figure 2b. The communication system includes an access network device and a core network device. For example, the access network device may include a gNB 102 and an ng-eNB 103 shown in the figure, and the core network device may include an access and mobility management function (AMF) 104 and a location management function (LMF) 105 shown in the figure. The LMF 105 is a network element, module, or component that provides positioning functions to terminal devices in the NR core network.

[0181] For example, in this communication system, the access network devices can communicate with each other through an Xn interface, and the access network devices can communicate with the AMF 104 through an NG-C interface. The AMF 104 can communicate with the LMF 105 through an NL1 interface, and the AMF 104 corresponds to a router for communication between the access network devices and the LMF 105. The LMF 105 is configured to perform positioning calculations for the location of the terminal device.

[0182] 2a only shows an example in which a communication system includes two access network devices, namely, a gNB and an ng-eNB. In practical applications, the communication system may include at least one access network device, which is not specifically limited in this application.

[0183] In this application, in the communication system shown in Fig. 2b, LMF is the name in the current communication system. In the future communication system, the name of LMF may change as the communication system evolves. In the current communication system or the future communication system, any functional network element having a different name and a similar function to LMF may be understood as LMF in the embodiments of this application and is applicable to the communication method provided in the embodiments of this application.

[0184] In the communication system shown in FIG. 1, FIG. 2a, and FIG. 2b, the architecture may be used to implement the positioning process of the terminal device based on the architecture with the control of the Location management function (LMF) in the core network and the assistance from the access network device and the terminal. Usually, the observed time difference of arrival (OTDOA) is mainly used in the downlink positioning method. The location of the terminal device is determined using the time difference of arrival (TDOA) between the time when the downlink reference signals of multiple cells arrive at the terminal device and the time when the downlink signal of the base station serving the reference cell arrives at the terminal device, which is obtained by the terminal device through measurement. For example, NR specifies another downlink positioning technique, for example, a downlink positioning technique based on the angle of departure (AoD). In this technique, the AoD of the base station is estimated and calculated using the measurement information obtained by the terminal device by measuring the downlink reference signals of multiple base stations, and the location of the terminal device is determined based on the AoD of the multiple base stations.

[0185] For example, a communication system including the devices of Figures 2a and 2b may alternatively be implemented as shown in Figure 2c.

[0186] Optionally, in FIG. 2c, the communication system further includes an evolved serving mobile location center (E-SMLC) 106 and a secure user plane location locaiton platform (SLP) 107. The E-SMLC 106 is a network element, module, or component that provides positioning functionality in the 4G core network. The SLP 107 is a network element, module, or component configured to process a user plane security positioning protocol in the 4G core network.

[0187] For example, the communication system to which the present application applies may further include one or more network devices and one or more terminal devices, as shown in Figures 3a and 3b.

[0188] Optionally, one network device may transmit data or control signaling to one or more end devices, as shown in FIG. 3a.

[0189] Optionally, multiple network devices may alternatively transmit data or control signaling to one end device simultaneously, as shown in FIG. 3b.

[0190] For example, an example is taken where the terminal device is a UE. The current Rel-16 positioning standardizes the SRS used for positioning and the Rel-15 SRS for multiple-input multiple-output (MIMO) to support the following positioning techniques: Uplink time difference of arrival (UL-TDOA) positioning technology, in which the uplink relative time of arrival (UL RTOA) is measured by the UE's SRS signal in each cell and the measurement result is reported to the LMF; Uplink Angle of Arrival (UL-AoA) positioning technology, in which the UL AoA is measured by the UE's SRS signal in each cell and the measurement results are reported to the LMF; and A multi-cell round trip time (Multi-RTT) positioning technology in which the UE measures the UE's reception-transmission time difference (Rx-Tx time difference) using the positioning reference signal (PRS) in each cell and reports the measurement result to the LMF, and the gNB measures the Rx-Tx time difference using the UE's SRS signal in each cell and reports the measurement result to the LMF.

[0191] Typically, the structure of an SRS includes the following levels, as shown in FIG.

[0192] (1) Serving cell / carrier: Each serving cell (e.g., cell carrier #0 or cell carrier #1 shown in FIG. 4) may include one uplink carrier or two uplink carriers. When there are two uplink carriers, one carrier is a normal uplink carrier and the other carrier is a supplementary uplink (SUL) carrier. In addition, each uplink carrier includes one or more BWPs.

[0193] (2) Bandwidth part (BWP): This is a bandwidth part on a carrier (e.g., BWP#0, BWP#1, or BWP#2 included in cell carrier #0, or BWP#0, BWP#1, or BWP#2 included in cell carrier #1, as shown in FIG. 4), and corresponds to a resource block (RB) set, subcarrier spacing, and cyclic prefix (CP) type. In Rel-15 and Rel-16, multiple BWPs can be configured on a cell carrier, but only a maximum of one active BWP is configured at a time. The terminal performs data transmission, uplink control, and SRS in the active BWP. One or more SRS resource sets can be configured in a BWP.

[0194] (3) SRS resource set: It includes one or more SRS resources, and the SRS resources in an SRS resource set have the same period and SRS power control parameters.

[0195] Optionally, different SRS resources within the same SRS resource set may correspond to different beams or may correspond to different transmit antennas / antenna sets.

[0196] (4) SRS resource: This is the smallest granularity of configuring an SRS, and an SRS resource corresponds to an SRS transmission beam.

[0197] The maximum bandwidth of a single carrier in the NR low frequency band (FR1) is 100 MHz, and the bandwidth of the SRS must be configured based on the maximum bandwidth of a single carrier, so the maximum bandwidth of the signal available for low frequency positioning is 100 MHz. Compared with cellular positioning, ultra-wide bandwidth (UWB) can support 500 MHz. Since the positioning accuracy is largely dependent on the signal bandwidth, the performance of cellular positioning is not superior to that of UWB.

[0198] In addition, the reference signal used for positioning and another signal (such as data or control signaling) sent by the terminal device are usually carried on the same carrier, so the bandwidth of the carrier occupied by the reference signal used for positioning is reduced or even preempted. Therefore, how to improve the positioning accuracy has become a technical problem that needs to be urgently solved.

[0199] To solve the above problems, the present application provides a communication method and a communication device.The following further provides a description with reference to the accompanying drawings.

[0200] 5 is a diagram of a communication method according to an embodiment of the present application. The method includes the following steps:

[0201] It should be noted that in FIG. 5, the method is illustrated using an example in which a terminal device and a network device are used as actors in the interaction diagram. However, the actors in the interaction diagram are not limited in the present application. For example, the terminal device in FIG. 5 may alternatively be a chip, chip system, or processor that supports the terminal device in implementing the method, or may be a logic module or software that can implement all or part of the functions of the terminal device. The network device in FIG. 5 may alternatively be a chip, chip system, or processor that supports the network device in implementing the method, or may be a logic module or software that can implement all or part of the functions of the network device.

[0202] S501: A network device transmits first configuration information.

[0203] In this embodiment, the network device sends first configuration information in step S501, and the terminal device correspondingly receives the first configuration information in step S501. The first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1.

[0204] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which may alternatively be expressed as the first configuration information is used to configure n signals used for positioning. The name of this signal used for positioning in current communication systems may be a sounding reference signal (SRS). In future communication systems, the name of SRS may change as the communication system evolves.

[0205] It should be noted that before step S501, the network device can determine that the first configuration information needs to be delivered to the terminal device in multiple manners. For example, after receiving a positioning information request message (which may include SRS configuration and / or SRS bandwidth information) from the positioning server before step S501, the network device executes step S501 based on the message. As another example, before step S501, if it determines that the positioning information of the terminal device needs to be obtained, the network device executes step S501.

[0206] In addition, on the n carriers corresponding to the n sounding reference signals, the cell corresponding to the positioning carrier may be called a secondary cell (SCell). If there is another carrier in the n carriers besides the positioning carrier, the cell corresponding to the other carrier may be a SCell or a primary cell (PCell).

[0207] For example, the value of n is 2, and the carriers corresponding to the n carriers are cell A and cell B, respectively. Cell A is a positioning-dedicated secondary cell (i.e., the carrier corresponding to cell A is a positioning carrier), and is not configured with PDCCH / PDSCH or PUSCH / PUCCH, but is configured with SRS. Alternatively, cell B may be a positioning-dedicated secondary cell (i.e., the carrier corresponding to cell B is a positioning carrier), or is a normal cell with uplink or downlink data (i.e., the carrier corresponding to cell B is not a positioning carrier), i.e., a cell configured with PUCCH / PUSCH or PDCCH / PDSCH. The cell may be a secondary cell SCell or a primary cell PCell. This is not limited in this specification.

[0208] In one possible implementation, the positioning carrier is not used to transmit PDCCH, PDSCH, PUSCH, or PUCCH signals.

[0209] In one possible implementation, the positioning carrier is used only to transmit the sounding reference signal, or the positioning carrier is used only to transmit the sounding reference signal and the physical random access channel (PRACH) signal.

[0210] Based on the above technical solution, the carrier corresponding to at least one of the n sounding reference signals configured using the first configuration information is a positioning carrier, and the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, or a PUCCH signal, that is, the positioning carrier does not need to adapt to the transmission and reception of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal. Therefore, for a terminal device, the terminal device only needs to support the transmission and reception of signals on the positioning carrier in the radio frequency module (the signal includes a sounding reference signal, or the signal includes a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the terminal device and to implement low-cost carrier aggregation (CA) positioning, the terminal device only needs to have a simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0211] Similarly, for a network device, the network device only needs to support transmitting and receiving signals on the positioning carrier in the radio frequency module (wherein the signals include a sounding reference signal, or wherein the signals include a sounding reference signal and a PRACH signal), and in order to simplify or save the baseband processing capability of the network device and to implement low-cost CA positioning, the network device only needs to have simple baseband signal processing capability in the baseband processing module, instead of the capability of processing complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals on the carrier.

[0212] In one implementation example, to accommodate the implementation of a positioning carrier, the present application further provides a communication device, which includes a radio frequency module and a baseband processing module. A carrier corresponding to a signal that can be transmitted and received by the radio frequency module includes carriers of (k+p) frequency domain resource units, where k and p are both integers equal to or greater than 1. The baseband processing module satisfies the following:

[0213] On a carrier of the k frequency domain resource units, a baseband processing module supports processing a target signal and processing a first signal, the first signal including a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal; On a carrier of the p frequency domain resource units, a baseband processing module supports processing of a target signal, and the baseband processing module does not support processing of at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal; The carriers corresponding to the n sounding reference signals are a subset of the carriers of the (k+p) frequency domain resource units.

[0214] Based on the above technical solution, in the communication device, the carriers corresponding to the signals that can be transmitted and received by the radio frequency module include carriers of (k+p) frequency domain resource units, but in the carriers of p frequency domain resource units, the baseband processing module does not support the processing of at least one of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, i.e., the capability of the radio frequency module of the communication device is redundant. In other words, the communication device supports full communication capability in the carriers of k frequency domain resource units, but the communication device only supports simple transmission and reception of target signals in the carriers of p frequency domain resource units, i.e., in order to simplify or save the baseband processing capability of the communication device and to implement low-cost CA positioning, the communication device only needs to have simple baseband signal processing capability in the carriers of p frequency domain resource units.

[0215] Optionally, on a carrier of the p frequency domain resource units, the baseband processing module supports processing of a target signal, and the baseband processing module does not support processing of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0216] It should be understood that the communications apparatus may be a terminal device, or the apparatus may be a component (e.g., a processor, chip, or chip system) within a terminal device, or the apparatus may be a logical module or software capable of performing all or part of the functions of a terminal device, and / or the communications apparatus may alternatively be a network device, or the apparatus may alternatively be a component (e.g., a processor, chip, or chip system) within a network device, or the apparatus may alternatively be a logical module or software capable of performing all or part of the functions of a network device.

[0217] Optionally, the frequency domain resource unit may be 10 megahertz (MHz), 50 MHz, 100 MHz, 500 MHz, or another frequency domain resource unit, and this is not limited herein.

[0218] For example, in this specification, a frequency domain resource unit of 100 MHz, values ​​of k and p both being 1, and n78band (i.e., the radio frequency module of the present communication device supports a spectrum of 3.3 GHz to 3.8 GHz within n78band) are used as an example in the description with reference to the examples of Figures 6 and 7.

[0219] As shown in FIG. 6, an implementation example of the terminal device includes the following modules: a digital-to-analog converter (DAC) configured to perform digital-to-analog conversion; a low-pass filter configured to smooth the signal output by the digital-to-analog converter and suppress out-of-band leakage; a mixer, in which the mixer can multiply a baseband signal by a local oscillator signal, and is configured to up-convert the baseband signal to a radio frequency band; then, after processing of the local oscillator signal, a cosine branch and a sine branch can be output to support modulation of the I / Q branch; then, radio frequency combining (Sigma), including intra-frequency combining of the I / Q channel and combining of the two frequencies, is performed; and a radio frequency band-pass filter that mainly removes mirror frequencies after mixing that interfere with a power amplifier configured to amplify the signal. In addition, an antenna such as a radio frequency feeder is further included.

[0220] As shown in FIG. 7, in one implementation example of the network device, the following modules are included: a sounding reference signal functionality baseband unit (SRS functionality BB) corresponding to a baseband unit configured to process only SRS, and a full functionality baseband unit (full functionality BB) corresponding to a baseband unit configured to process all communication signals and channels. The SRS functionality BB is used to reduce the cost of CA positioning supported by the base station and the terminal, and ensure wideband positioning accuracy. It should be understood that the SRS functionality BB has a lower cost and power consumption than the full functionality BB. In addition, the network device further has a radio / radio frequency capability (Radio / RF capability), which indicates that the radio frequency capability of the network device and the terminal is the capability of transmitting the SRS functionality BB and the full functionality BB through the channel.

[0221] Optionally, the rightmost part of Figure 7 is a concept under the corresponding standard concept. In practice, only SRS-only SCell or positioning carrier (or positioning cell or other name) may be introduced into the standard, and the processing unit of SRS on the positioning carrier (or positioning cell or other name) is completed by SRS functionality BB.

[0222] For example, suppose the bandwidth supported by the radio frequency device of the terminal device shown in FIG. 6 is 200 MHz, which means that the rate of the digital-to-analog converter (DAC) and the bandwidth of the radio frequency (RF) bandpass filter of the terminal device are adapted to 200 MHz, but the baseband processing capability of the terminal device is sufficient to process only 100 MHz data. In this case, the terminal device can support full communication capability at 100 MHz, including reception or transmission of SSB, CSI-RS, PDCCH / PDSCH, PUCCH / PUSCH, and SRS. For example, the communication capability at 100 MHz may correspond to one carrier (3.4 GHz to 3.5 GHz) in the n78 band. In addition, the radio frequency of the terminal device has redundancy. In fact, although a 200 MHz radio frequency signal can be transmitted, the baseband of the terminal device cannot support transmission and reception of 200 MHz data. This means that if there is another carrier at a frequency from 3.5 GHz to 3.6 GHz, the terminal cannot support transmission and reception of data on that carrier. Therefore, the carrier becomes a positioning carrier. The terminal may have simple baseband signal processing capability to transmit SRS etc. on the carrier, but the carrier may not support processing of complex channels such as PCCCH / PDSCH or PUCCH / PUSCH. Since two CCs deployed in the same band are usually co-located, the terminal can use the synchronization and timing of the 3.4GHz~3.5GHz cell for the positioning carrier.

[0223] It should be understood that this architecture may alternatively be implemented on the network device shown in FIG. 7. For example, the network device configures two 100 MHz carriers. One carrier supports full communication capabilities, while the other carrier supports only simple SRS reception. In this way, the complexity of baseband processing on the second carrier can be reduced. Since two CCs deployed in the same band are usually co-located, the base station does not need to configure the transmission of synchronization signals such as SSB and the reception of PRACH on the second carrier.

[0224] In one possible implementation, the n carriers corresponding to the n sounding reference signals are located in the same band. Specifically, different carriers located in the same band are usually in a collocated deployment (also called collocation), so that the uplink timing and downlink timing of different carriers located in the same band can be considered to be synchronous, and the n sounding reference signals transmitted by the terminal device can share the same synchronization information to reduce overhead.

[0225] Optionally, when n is 3 or greater, at least two of the n carriers corresponding to the n sounding reference signals are located in the same band.

[0226] In one possible implementation, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0227] Based on the above technical solution, when a terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or have a phase difference, so that a receiving side of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning manner by using the bandwidth aggregation characteristics of each carrier.

[0228] It should be understood that in this application, n sounding reference signals sharing an antenna port means that the channel conditions of the n sounding reference signals can be inferred from each other. In the protocol (TS 38.211), an antenna port is defined as follows: An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed.

[0229] It should be noted that the above scheme can also be expressed as follows: A channel on which a symbol on which an antenna port is located is transferred (by using a reference signal or via a physical layer channel) can be inferred from a channel on which a symbol on which the same antenna port is located is transferred (by using a reference signal or via a physical layer channel). In other words, the channels on which two symbols are transferred can be inferred from each other. In this case, the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols on which the two reference signals are mapped correspond to the same antenna port.

[0230] Optionally, the two signals share an antenna port (corresponding to the same antenna port), which is the strictest requirement for the two signals in the protocol. Usually, the two signals are transmitted by the same precoding using the same physical antenna or the same physical antenna set, and in this process, no radio frequency phase jump occurs, i.e., the channels of the two signals are completely the same. In addition, the protocol allows a certain relaxation to "the channels of the two signals are completely the same". For example, the channel phase change on separate symbols caused by Doppler shift when the terminal moves at high speed or when there is a slight residual frequency offset from the transmit / receive radio frequency, which can also be considered as the same port. In this case, the receiver needs to estimate the residual Doppler frequency based on the assumption of the same port, and the channel can be considered to be completely the same after removal.

[0231] As an arbitrary choice, n sounding signals having a phase difference refers to a relationship lower than the same port requirement. Currently, the protocol does not define this concept. An example is used in which the value of n is 2. Two signals having a "phase difference" specifically means that in addition to a certain fixed random phase difference between the two signals, the channels can be inferred from each other. This case specifically corresponds to two signals being transmitted by the same precoding using the same physical antenna or the same set of physical antennas, and in this process, there may be a radio frequency phase jump between the two signals, i.e., the channels of the two signals are completely the same except for the random radio frequency phase. The main reason for the radio frequency phase jump is that the two signals use independent local oscillators for upconversion or downconversion, and the two independent local oscillators do not have a consistent initial phase or a stable initial phase. This results in a phase difference between the two signals. A similar mitigation is allowed in the presence of Doppler.

[0232] Note that having a phase difference and having Doppler are different from each other, even though they are both visually phase changes. Doppler is primarily used to describe the case where the phase of two signals on the same frequency (e.g., same CC / BWP) changes essentially linearly with time. Phase difference is primarily used to describe the case where the phase of two signals on different frequencies (e.g., different CC / BWP) does not change linearly with time.

[0233] In one possible implementation, before the terminal device receives the first configuration information in step S501, the method further includes a step of the terminal device transmitting first information, where the first information indicates capability information of the terminal device. Specifically, the terminal device can further transmit the first information indicating the capability information of the terminal device, so that after receiving the first information, the network device can determine the capability of the terminal device based on the first information and use the first information as one of the bases for determining the first configuration information.

[0234] Optionally, the first piece of information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0235] Based on the above technical solution, the first information indicating the capability information of the terminal device may include at least one of the above, so that the network device determines based on the first information that the terminal device has the capability of transmitting a sounding reference signal on the positioning carrier, and delivers the first configuration information to the terminal device.

[0236] It should be noted that the first indication information, the second indication information, and the third indication information are intended to indicate that the terminal device supports the positioning carrier.

[0237] In one implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) may be carried in an uplink feature set (FeatureSetUplink) information element. For example, before step S501, the terminal device uses the FeatureSetUplink information element to report the aggregate SRS bandwidth in the band in which UL data is supported. The FeatureSetUplink may be used to indicate the ability to support uplink data by the terminal device for each band of the CA band combination, or to carry the ability to support SRS resources by the terminal device.

[0238] It will be appreciated that in this example, the bandwidth is greater than the bandwidth corresponding to ca-BandwidthClassUL-NR corresponding to the target band of the CA band combination reported by the terminal device. For example, the terminal device may report in band n78 of the band combination that ca-BandwidthClassUL-NR is A corresponding to a single CC and the maximum bandwidth is the maximum channel bandwidth in the band, e.g., 100 MHz in band n78. However, the SRS bandwidth reported by the terminal device is 200 MHz.

[0239] In another implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) may be carried in a downlink feature set (FeatureSetDownlink) information element. For example, before step S501, the terminal device uses a FeatureSetDownlink information element to report an aggregate SRS bandwidth in a band in which UL data is not supported. Since the terminal device does not support uplink data, the terminal does not report FeatureSetUplink in the band. However, the terminal device supports downlink data and therefore can report the SRS bandwidth using FeatureSetDownlink. FeatureSetDownlink indicates the ability to support downlink data by the terminal device for each band of the CA band combination. If not reported, FeatureSetUplink may alternatively be used to convey the ability to support SRS resources by the terminal.

[0240] It will be appreciated that in this example, the bandwidth is greater than the bandwidth corresponding to ca-BandwidthClassUL-NR corresponding to the target band of the CA band combination reported by the terminal. For example, the terminal may report in band n78 of the band combination that ca-BandwidthClassUL-NR is A corresponding to a single CC and the maximum bandwidth is the maximum channel bandwidth in the band, e.g., 100 MHz in band n78. However, the SRS bandwidth reported by the terminal is 200 MHz.

[0241] In another implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) may be carried in a band combination information element or a band parameter information element in a band combination. In other words, the terminal reports an SRS-specific bandwidth class (BandwidthClass), and the reported information corresponds to one or more bands of the terminal's CA band combination.

[0242] In addition, in another implementation example of the third indication information, the third indication information may be indicated jointly using a BandwidthClass information element and a FeatureSetDownlink information element, or the third indication information may be indicated using a FeatureSetUplink information element.

[0243] In addition, when the first information includes the fourth instruction information, it indicates information about the time when the terminal device performs carrier switching on the positioning carrier. In other words, the terminal device indicates the switching time when the SRS is transmitted on the positioning carrier before step S501, and mainly indicates the delay of the radio frequency switching of the terminal operation on the target band between the communication mode and the positioning mode. For example, the communication bandwidth of the terminal on the n78 band is 100 MHz, but the CA bandwidth of the SRS for positioning can support up to 200 MHz. When the terminal is in a communication mode (i.e., when it supports reception, transmission, and processing of signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals), the radio frequency is centered at 100 MHz and the radio frequency filter is set based on 100 MHz, and when the terminal is in a positioning mode (i.e., when it does not support reception, transmission, and processing of at least one of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals), the radio frequency is centered at 200 MHz and the radio frequency filter is set based on 200 MHz. Switching between the two modes, including realigning the radio frequency center and reconfiguring the filter, requires time. During this period, the terminal suspends uplink communication or even downlink communication in the target band.

[0244] S502: A terminal device transmits n sounding reference signals.

[0245] In this embodiment, the terminal device transmits n sounding reference signals in step S502, and correspondingly, the network device receives the n sounding reference signals in step S502.

[0246] It should be noted that in this application, the network device that sends the first configuration information to the terminal device in step S501 and the network device that receives the n sounding reference signals in step S502 may be the same network device or may be different network devices, which is not limited in this specification.

[0247] In one possible implementation, the terminal device transmitting the n sounding reference signals based on the first configuration information in step S502 includes the terminal device transmitting the n sounding reference signals based on the first configuration information when no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0248] Specifically, after receiving the first configuration information in step S501, the terminal device may need to transmit n sounding reference signals based on the first configuration information in step S502. In this process, if it is determined that no conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the terminal device can transmit the n sounding reference signals based on the first configuration information. In other words, if it is determined that the n sounding reference signals do not conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource, the terminal device transmits the n sounding reference signals based on the first configuration information to avoid transmission failure of the n sounding reference signals when avoiding an impact on the transmission of other scheduled signals.

[0249] Based on the above technical solution, in the first configuration information received by the terminal device in step S501, the first configuration information is used to configure n sounding reference signals used for positioning, and the carrier corresponding to at least one of the n sounding reference signals is a positioning carrier. Therefore, the terminal device can then transmit at least one of the n sounding reference signals on the positioning carrier based on the first configuration information in step S502. In order to improve the positioning accuracy of the terminal device, in this manner, the positioning carrier carries at least one sounding reference signal, the situation in which the carrier bandwidth is reduced because the reference signal used for positioning and another signal (e.g., data or control signaling) are carried on the same carrier can be avoided, and even the situation in which the carrier is preempted can be avoided. In addition, the signal received by the receiving side of the n sounding reference signals is a signal obtained by performing carrier aggregation on the n sounding reference signals on the n corresponding carriers. The bandwidth aggregation characteristics of each carrier are utilized, so that the receiver of the n sounding reference signals can obtain more accurate positioning measurement results in a carrier aggregation (CA) positioning scheme.

[0250] In one possible implementation of the method shown in Fig. 5, the terminal device does not necessarily perform this process of transmitting n sounding reference signals in step S502 after receiving the first configuration information in step S501. In order to avoid conflicts, if the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals are used to transmit another signal in the same time domain resource unit, the terminal device may determine not to transmit the n sounding reference signals, or may determine to transmit only a part of the n sounding reference signals. Hereinafter, an explanation is provided with reference to the examples shown in Fig. 8a and Fig. 8b.

[0251] 8a is another diagram of a communication method according to the present application. The method includes the following steps:

[0252] A1: The network device transmits first configuration information.

[0253] In this embodiment, the network device sends first configuration information in step A1, and the terminal device correspondingly receives the first configuration information in step A1. The first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, where n is an integer greater than 1.

[0254] It should be noted that the implementation process of step A1 should refer to this implementation process of step S501 to achieve the corresponding technical effect, and the details will not be described again in this specification.

[0255] A2: The terminal device determines not to transmit n sounding reference signals.

[0256] Specifically, in step A2, if a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the terminal device determines not to transmit the n sounding reference signals.

[0257] Based on the above technical solution, the terminal device may not need to transmit the n sounding reference signals after receiving the first configuration information in step A1. In this process, if it is determined that a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit, the terminal device may determine not to transmit the n sounding reference signals. In other words, if it is determined that the n sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource, the terminal device transmits the first signal instead of the n sounding reference signals to avoid affecting the transmission of the other scheduled signals.

[0258] It should be noted that when the "same time domain resource unit" is the same slot, subframe, or frame, the same time domain resource unit may include multiple symbols. In this case, the terminal device determines not to transmit n sounding reference signals on conflicting symbols in the same time domain resource unit, which can also be expressed as follows: the terminal device determines not to transmit n sounding reference signals on conflicting symbols in the same time domain resource unit. In other words, the terminal device can transmit n sounding reference signals on non-conflicting symbols in the same time domain resource unit.

[0259] For example, when the same time domain resource unit is four symbols in a slot, but a conflict occurs in only one symbol, the terminal device determines not to transmit the n sounding reference signals, which can also be expressed as follows: the terminal device determines not to transmit the n sounding reference signals in that symbol. In other words, the terminal device can further transmit the n sounding reference signals in the other three symbols.

[0260] In one possible implementation, the first configuration information received by the terminal device in step A1 further includes seventh instruction information, where the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0261] It should be understood that in this implementation, the seventh indication information can also be expressed as follows: the seventh indication information indicates that the same time-domain resource unit is not used to carry n sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0262] Specifically, the first configuration information received by the terminal device may further include seventh indication information, which indicates that the terminal device should not transmit all of the n sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the seventh indication information that the n sounding reference signals do not need to be transmitted when they conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0263] It should be noted that the process of the terminal device performing step A2 may be triggered based on the capability of the terminal device. That is, before step A1, if the first information reported by the terminal device to the network device and indicating the capability information of the terminal device includes the fifth indication information, the terminal device performs step A2. Alternatively, the process of the terminal device performing step A2 may be triggered based on the configuration of the network device. That is, if the first configuration information further includes the seventh indication information, the terminal device performs step A2.

[0264] Optionally, in the technical solution shown in FIG. 8a, the reason why the terminal does not transmit n sounding reference signals even when a conflict occurs on carriers corresponding to one or more sounding reference signals (instead of all n carriers corresponding to n sounding reference signals) is that even if some of the n sounding reference signals are transmitted, the full effect of transmitting all n sounding reference signals is not achieved, i.e., the high-precision positioning obtained by using CA aggregation bandwidth is not implemented. In addition, due to the limitations of the terminal's radio frequency device, on the same symbol, the uplink and downlink are not necessarily performed simultaneously on separate CCs in the band. In addition, if both the PUSCH on a CC and the SRS on another CC are included on the same symbol, the power change at the symbol level may cause a deterioration in the quality of the SRS transmission, and it is difficult to obtain a good positioning measurement. In addition, the base station that measures the SRS is not necessarily the base station that serves the terminal, and cannot notice the partial SRS transmission from the terminal due to this conflict. If the base station of the neighboring cell receives the PUSCH / PUCCH and the (n-1) SRSs as a total of n SRSs, the measurement results will be poor.

[0265] 8b is another diagram of a communication method according to the present application. The method includes the following steps:

[0266] B1: The network device transmits first configuration information.

[0267] In this embodiment, the network device sends first configuration information in step B1, and the terminal device correspondingly receives the first configuration information in step B1. The first configuration information is used to configure n sounding reference signals, the sounding reference signals are used for positioning, and a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, where n is an integer greater than 1.

[0268] It should be noted that the implementation process of step B1 should refer to this implementation process of step S501 to achieve the corresponding technical effect, and the details will not be described again in this specification.

[0269] B2: The terminal device determines not to transmit one or more sounding reference signals.

[0270] Specifically, in step B2, if a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the terminal device determines not to transmit one or more sounding reference signals.

[0271] Based on the above technical solution, the terminal device may not need to transmit the n sounding reference signals after receiving the first configuration information in step B1. In this process, if it is determined that a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals, the terminal device may determine not to transmit some of the n sounding reference signals, i.e., the terminal device may determine not to transmit one or more sounding reference signals. In other words, if it is determined that one or more of the n sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) in the corresponding time-frequency domain resources, in order to avoid affecting the transmission of the first signal, the terminal device may (stop transmitting and receiving signals, or) transmit other scheduled signals instead of the n sounding reference signals in the time-frequency domain resources corresponding to the one or more sounding reference signals.

[0272] In one possible implementation, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0273] It should be understood that in this implementation, the eighth instruction information can also be expressed as follows: the eighth instruction information indicates that the same time-domain resource unit is not used to carry one or more sounding reference signals when a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time-domain resource unit.

[0274] Based on the above technical solution, the first configuration information received by the terminal device may further include eighth indication information, where the eighth indication information indicates that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on the carrier corresponding to one or more of the n sounding reference signals in the same time-domain resource unit. Thus, after receiving the first configuration information, the terminal device determines based on the eighth indication information that one or more sounding reference signals do not need to be transmitted when the one or more sounding reference signals conflict with other scheduled signals (from the terminal device or another terminal device) on the corresponding time-frequency domain resource.

[0275] It should be noted that the process of the terminal device performing step B2 may be triggered based on the capability of the terminal device. That is, before step B1, if the first information reported by the terminal device to the network device and indicating the capability information of the terminal device includes the sixth indication information, the terminal device performs step B2. Alternatively, the process of the terminal device performing step B2 may be triggered based on the configuration of the network device. That is, if the first configuration information further includes the eighth indication information, the terminal device performs step B2.

[0276] In one possible implementation, before step A2 (or step B2), the method further comprises a step in which the terminal device receives second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or tenth indication information, the tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; At least one of the steps Further includes:

[0277] The terminal device determines, based on the second information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0278] Specifically, the terminal device may further receive second information including at least one piece of information, so that the terminal device determines, based on the at least one piece of information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit one or more sounding reference signals).

[0279] In one possible implementation, before step A2 (or step B2), the method further includes a step in which the terminal device receives eleventh indication information, the eleventh indication information instructs transmitting a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH. The terminal device determines a first symbol set, the first symbol set being a symbol occupied by the first signal, or the first symbol set being a union set of a symbol occupied by the first signal and a switching symbol, the switching symbol being located before the symbol occupied by the first signal or after the symbol occupied by the first signal, and the number of switching symbols being determined by a first switching time. If the first symbol set includes at least one symbol corresponding to the same time domain resource unit, the terminal device determines that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0280] It should be noted that the first switching time is used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, where the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier.

[0281] Specifically, the terminal device can further receive eleventh indication information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, and further determines a first symbol set according to the eleventh indication information. The first symbol set is a symbol occupied by the first signal, or the first symbol set is a union set of a symbol occupied by the first signal and a switching symbol. In addition, when the first symbol set includes at least one symbol corresponding to the same time domain resource unit, in order to avoid affecting the transmission of the first signal, the terminal device determines that a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit one or more sounding reference signals).

[0282] It should be understood that the eleventh indication information may be semi-static configuration information (e.g., radio resource control (RRC) configuration) or dynamic scheduling information (e.g., downlink control information (DCI) scheduling), which is not limited in this specification.

[0283] Optionally, in the technical solution shown in Fig. 8b, since the terminal continues to transmit non-conflicting SRS, it can be ensured that the network makes full use of the transmitted SRS to position the terminal based on the premise of the existence of conflicting information. In this case, the positioning accuracy is not as high as that when all n SRSs are transmitted, but it can be obtained with an accuracy equivalent to that of the transmitted SRS. From the perspective of the terminal's radio frequency, the terminal also needs to have strong radio frequency capability to ensure that the quality of the transmission of non-conflicting SRS is not affected.

[0284] The above describes the present application in terms of the method, and the following describes the apparatus of the present application.

[0285] 9 is an implementation diagram of a communication device according to an embodiment of the present application. The communication device can execute this implementation process related to a terminal device or a network device in any one of the above embodiments.

[0286] 9, the communication device 900 may include at least a transceiver unit 901. Moreover, optionally, the communication device 900 may further include a processing unit 902.

[0287] Optionally, the transceiver unit 901 may be referred to as a transceiver module, a transceiver assembly, a transceiver, a signal transceiver, or the like.

[0288] Optionally, processing unit 902 may be referred to as a processing module, a processor, a signal processor, a processing device, or the like.

[0289] Optionally, the transceiver unit 901 may alternatively include a sending unit 901a (or referred to as a sending module, a transmit module, a transmitter, a signal transmitter, etc.) and a transceiver unit 901b (or referred to as a receiving module, a receiving assembly, a receiver, a signal receiver, etc.). The sending unit and the receiving unit may be integrated and implemented in the same physical / virtual modular system, or may be implemented separately in a separately arranged physical / virtual modular system, which is not limited herein.

[0290] Optionally, if the communication device 900 is a chip, the transceiver unit 901 may alternatively be an input / output interface.

[0291] In one implementation, the communication apparatus 900 is configured to perform the communication method related to the terminal device described above. The communication apparatus 900 includes at least a sending unit 901a and a receiving unit 901b.

[0292] The receiving unit 901b is configured to receive first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, and n being an integer greater than 1.

[0293] The transmitting unit 901a is configured to transmit n sounding reference signals based on the first configuration information, where the n sounding reference signals are carried in the same time domain resource unit.

[0294] In one possible implementation, the sending unit 901a is further configured to send first information, where the first information indicates capability information of the terminal device.

[0295] In one possible implementation, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0296] In one possible implementation, the apparatus further includes a processing unit 902 .

[0297] If the processing unit 902 determines that no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the transmitting unit 901a is specifically configured to transmit the n sounding reference signals based on first configuration information, where the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

[0298] In one possible implementation, if it is determined that a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the processing unit 902 is configured to decide not to transmit the n sounding reference signals.

[0299] In one possible implementation, the first configuration information further includes seventh instruction information, where the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to any one of the n sounding reference signals in the same time domain resource unit.

[0300] In one possible implementation, if it is determined that a conflict occurs on the carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the processing unit 902 is further configured to determine not to transmit the one or more sounding reference signals.

[0301] In one possible implementation, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0302] In one possible implementation, the receiving unit 901b receives the second information, and the second information is as follows: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or tenth indication information, the tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; The device is further configured to include at least one of:

[0303] The processing unit 902 is further configured to determine, based on the second information, that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0304] In one possible implementation, the receiving unit is further configured to receive eleventh instruction information, the eleventh instruction information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH.

[0305] The processing unit is further configured to determine a first symbol set, where the first symbol set is a symbol occupied by the first signal, or the first symbol set is a union set of the symbols occupied by the first signal and a switching symbol, where the switching symbol is located before the symbol occupied by the first signal or after the symbol occupied by the first signal, and the number of switching symbols is determined by the first switching time.

[0306] If the processing unit determines that the first symbol set includes at least one symbol corresponding to the same time domain resource unit, the processing unit determines that a conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0307] In one possible implementation, the positioning carrier is not used to transmit PDCCH, PDSCH, PUSCH, or PUCCH signals.

[0308] In one possible implementation, the positioning carrier is used only to transmit the sounding reference signal, or The positioning carrier is only used to transmit the sounding reference signal and the physical random access channel PRACH signal.

[0309] In one possible implementation, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0310] In one possible implementation, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0311] In one implementation, the communication apparatus 900 is configured to perform the communication method associated with the network device described above. The communication apparatus 900 includes a transceiver unit 901 and a processing unit 902.

[0312] The processing unit 902 is configured to determine first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, the n sounding reference signals being carried in the same time domain resource unit, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, and n being an integer greater than 1.

[0313] The transceiver unit 901 is configured to transmit first configuration information.

[0314] In one possible implementation, the transceiver unit 901 is further configured to receive first information, where the first information indicates capability information of the terminal device.

[0315] The processing unit 902 is further configured to determine first configuration information based on the first information.

[0316] In one possible implementation, the first information is: a first indication information indicating a first maximum aggregate bandwidth, the first maximum aggregate bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and the carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; Fifth indication information instructing the terminal device not to transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or Sixth indication information for indicating that the terminal device does not transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit. Includes at least one of the following:

[0317] In one possible implementation, the first configuration information further includes seventh instruction information, where the seventh instruction information instructs the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0318] In one possible implementation, the first configuration information further includes eighth instruction information, which instructs the terminal device not to transmit one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

[0319] In one possible implementation, the transceiver unit 901 transmits second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; a tenth indication, the tenth indication indicating that at least one symbol corresponding to the same time domain resource unit is preempted; or 11th indication information, the 11th indication information instructing to transmit a first signal on a carrier corresponding to one or more of the n sounding reference signals, the first signal including at least one of a physical downlink control channel PDCCH signal, a physical downlink shared channel PDSCH signal, a physical uplink shared channel PUSCH signal, and a physical uplink control channel PUCCH signal. The device is further configured to include at least one of:

[0320] In one possible implementation, the positioning carrier is not used to transmit PDCCH, PDSCH, PUSCH, or PUCCH signals.

[0321] In one possible implementation, the positioning carrier is used only to transmit the sounding reference signal, or The positioning carrier is only used to transmit the sounding reference signal and the physical random access channel PRACH signal.

[0322] In one possible implementation, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0323] In one possible implementation of the fourth aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0324] It should be noted that the contents of the information execution process of the unit of the communication device 900, etc., should be specifically referred to the description of the preceding method embodiment of the present application, and the details will not be described again in this specification.

[0325] 10 illustrates a communication device of the above-mentioned embodiment according to an embodiment of the present application. The communication device 1000 may be a terminal device illustrated in any one of the above-mentioned embodiments, or the communication device 1000 may be some components (e.g., a processor, a chip, or a chip system) in the terminal device illustrated in any one of the above-mentioned embodiments.

[0326] 10 is a diagram of a possible logical structure of a communication device 1000. The communication device 1000 may include, but is not limited to, at least one processor 1001 and a communication port 1002. Optionally, the device may further include a memory 1003 and a bus 1004. In this embodiment of the present application, the at least one processor 1001 is configured to control operations performed by the communication device 1000.

[0327] In addition, the processor 1001 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or another programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The processor may implement or execute various exemplary logic blocks, modules, and circuits described with reference to the contents disclosed in this application. Alternatively, the processor may be a combination of processors that perform calculation functions, such as a combination of one or more microprocessors, or a combination of a digital signal processor and a microprocessor. For convenience of description, it will be clearly understood by those skilled in the art that the detailed work processes of the above-mentioned systems, devices, and units should refer to the corresponding processes in the above-mentioned method embodiments. Details will not be described again in this specification.

[0328] It should be noted that the communication device 1000 shown in Fig. 10 may be configured to implement other steps implemented by the terminal device in the corresponding method embodiment described above, and achieve the corresponding technical effect in the terminal device. For the specific implementation of the communication device 1000 shown in Fig. 10, please refer to the description of the method embodiment described above. Details will not be described again in this specification.

[0329] 11 is a structural diagram of a network device or some components (e.g., a processor, a chip, or a chip system) of a network device in the above embodiment according to an embodiment of the present application. In the following, an example in which the exemplary structural diagram shown in FIG. 11 is a structural diagram of a network device is used for description.

[0330] For example, the network device may include an access network device or a core network device.

[0331] For example, the network device in the structural diagram shown in Figure 11 may be used to perform the method described in any one of the embodiments shown in Figure 4 to Figure 11. Figure 4 is used as an example. The network device can send first priority information in step S401, and the network device can further receive a measurement result in step S403.

[0332] 11, the network device includes at least one processor 1111. Optionally, the network device may further include a network interface 1114.

[0333] Optionally, the network device further includes a memory 1112, a transceiver 1113, and one or more antennas 1115. The processor 1111, the memory 1112, the transceiver 1113, and the network interface 1114 are connected, for example, through a bus. In this embodiment of the present application, the connection may include various interfaces, transmission lines, buses, etc. This is not limited in this embodiment. The antenna 1115 is connected to the transceiver 1113. The network interface 1114 is configured to connect the network device to another communication device via a communication link. For example, the network interface 1114 may include a network interface between the network device and a core network device, for example, an S1 interface. The network interface may include a network interface between the network device and another network device (e.g., another network device or a core network device), for example, an X2 or Xn interface.

[0334] The processor 1111 is mainly configured to process communication protocols and communication data, control the entire network device, execute software programs, and process data of the software programs, for example, to support the network device in performing the operations described in the embodiments. The network device may include a baseband processor and a central processing unit. The baseband processor is mainly configured to process communication protocols and communication data. The central processing unit is mainly configured to control the entire terminal device, execute software programs, and process data of the software programs. The functions of the baseband processor and the central processing unit may be integrated into the processor 1111 of FIG. 11. Those skilled in the art can understand that the baseband processor and the central processing unit may be independent processors, and are interconnected using a technology such as a bus. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to various network standards, that the terminal device may include multiple central processing units to increase the processing power of the terminal device, and that the components of the terminal device may be connected using various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The functionality for processing communication protocols and communication data may be embedded in the processor or may be stored in memory in the form of a software program, which the processor executes to perform the baseband processing functions.

[0335] The memory is mainly configured to store software programs and data. The memory 1112 may exist independently and be connected to the processor 1111. Optionally, the memory 1112 may be integrated with the processor 1111, for example, integrated into a chip. The memory 1112 may store program codes for implementing the technical solutions of the embodiments of the present application, and the processor 1111 controls the execution thereof. Various types of computer program codes that are implemented may also be considered as drivers for the processor 1111.

[0336] FIG. 11 shows only one memory and one processor. In an actual terminal device, there may be multiple processors and multiple memories. The memory may also be called a storage medium, a storage device, etc. The memory may be a storage element on the same chip as the processor, i.e., an on-chip storage element, or may be an independent storage element. This is not limited in this embodiment of the present application.

[0337] The transceiver 1113 may be configured to support reception or transmission of radio frequency signals between the network device and the terminal, and the transceiver 1113 may be connected to an antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1115 may receive radio frequency signals. The receiver Rx of the transceiver 1113 is configured to receive radio frequency signals from the antenna, convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 1111, so that the processor 1111 performs further processing, such as demodulation and decoding, on the digital baseband signals or digital intermediate frequency signals. In addition, the transmitter Tx of the transceiver 1113 is further configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 1111, convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through one or more antennas 1115. Specifically, the receiver Rx can selectively perform one-level or multi-level down-conversion mixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal. The order of the down-conversion mixing and the analog-to-digital conversion is adjustable. The transmitter Tx can selectively perform one-level or multi-level up-frequency mixing processing and digital-to-analog conversion on the modulated digital baseband signal or the digital intermediate frequency signal to obtain a radio frequency signal. The order of the up-frequency mixing processing and the digital-to-analog conversion is adjustable. The digital baseband signal and the digital intermediate frequency signal are sometimes collectively referred to as a digital signal.

[0338] A transceiver may also be referred to as a transceiver unit, a transceiver machine, a transceiver device, etc. Optionally, a device configured to perform a receiving function within a transceiver unit may be considered as a receiving unit, and a device configured to perform a transmitting function within a transceiver unit may be considered as a transmitting unit. In other words, a transceiver unit includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc. A transmitting unit may also be referred to as a transmitter, a sender, a transmitting circuit, etc.

[0339] It should be noted that the network device shown in Fig. 11 may be configured to implement the steps performed by the network device in the above-mentioned method embodiment, and achieve the corresponding technical effect of the network device. For the specific implementation of the network device shown in Fig. 11, please refer to the description of the above-mentioned method embodiment. The details will not be described again in this specification.

[0340] An embodiment of the present application further provides a computer-readable storage medium storing one or more computer-executable instructions, which, when executed by a processor, cause the processor to perform a method in a possible implementation of a terminal device in the aforementioned embodiment.

[0341] An embodiment of the present application further provides a computer-readable storage medium storing one or more computer-executable instructions, which, when executed by a processor, cause the processor to perform a method in a possible implementation of the network device in the aforementioned embodiment.

[0342] An embodiment of the present application further provides a computer program product (also called a computer program) storing one or more computer programs, which, when executed by a processor, causes the processor to execute a method in a possible implementation of the aforementioned terminal device.

[0343] An embodiment of the present application further provides a computer program product storing one or more computer programs, which, when executed by a processor, causes the processor to perform a method in a possible implementation of the aforementioned network device.

[0344] An embodiment of the present application further provides a chip system. The chip system includes at least one processor configured to support the terminal device in performing functions in the above possible implementation of the terminal device. Optionally, the chip system further includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may further include a memory. The memory is configured to store program instructions and data required for the terminal device. The chip system may include a chip, or may include a chip and another discrete device.

[0345] An embodiment of the present application further provides a chip system. The chip system includes at least one processor configured to support the network device in performing functions in the above possible implementation of the network device. Optionally, the chip system further includes an interface circuit, which provides program instructions and / or data to the at least one processor. In one possible design, the chip system may further include a memory. The memory is configured to store program instructions and data required for the network device. The chip system may include a chip, or may include a chip and another discrete device. The network device may be the network device in the above method embodiment.

[0346] An embodiment of the present application further provides a communication system. The architecture of the network system includes the terminal device and the network device in any one of the preceding embodiments.

[0347] In some embodiments provided in the present application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the described device embodiment is only an example. For example, the division into units is only a logical functional division, and may be divided differently in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be implemented through some interfaces. Indirect couplings or communication connections between devices or units may be implemented in electronic, mechanical, or other forms.

[0348] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, and may be located in one location or distributed over multiple network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the solutions of the embodiments.

[0349] In addition, the functional units of the embodiments of the present application may be integrated into one processing unit, each of the units may exist physically alone, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software functional unit. When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, the integrated unit may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be essentially, or the part that contributes to the prior art, or all or part of the technical solution may be implemented in the form of a software product. The computer software product includes some instructions that are stored in a storage medium and instruct a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, etc.

[0350] The above description is only a specific implementation of the embodiments of the present application. However, the protection scope of the embodiments of the present application is not limited thereto. Any modifications or replacements that are easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of the present application shall fall within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims. [Explanation of symbols]

[0351] 100 Terminal Devices 201 Access Network Devices 202 Core Network Devices 101 Terminal Device 102 Next Generation Node B 103 Next-generation evolved Node B 104 Access and mobility management functions 105 Location management function 106 Improved Serving Mobile Location Center 107 Secure User Plane Location Platform 900 Communication Equipment 901 Transceiver unit 902 Processing Unit 901a Transmitter Unit 901b Transceiver unit, receiving unit 1000 Communication Equipment 1001 Processor 1002 communication port 1003 Memory 1004 Bus 1111 Processor 1114 Network Interface 1112 Memory 1113 Transceiver 1115 Antenna

Claims

1. receiving, by a terminal device, first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, where n is an integer greater than 1; transmitting, by the terminal device, the n sounding reference signals based on the first configuration information, wherein the n sounding reference signals are carried in a same time domain resource unit; A communication method comprising:

2. Prior to the step of receiving, by the terminal device, first configuration information, the method further comprises: transmitting, by the terminal device, first information, the first information indicating capability information of the terminal device; The method of claim 1, further comprising:

3. The first information is as follows: a first indication information indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; fifth indication information for indicating that the terminal device does not transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or sixth indication information for instructing the terminal device not to transmit the one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; The method of claim 2, comprising at least one of:

4. The step of transmitting, by the terminal device, the n sounding reference signals based on the first configuration information, comprises: transmitting, by the terminal device, the n sounding reference signals based on the first configuration information when determining that no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit. The method according to any one of claims 1 to 3, comprising:

5. The method comprises: determining, by the terminal device, not to transmit the n sounding reference signals when determining that a conflict occurs on the carrier corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

5. The method of claim 4, further comprising:

6. 6. The method of claim 4 or 5, wherein the first configuration information further includes seventh indication information, the seventh indication information instructing the terminal device not to transmit the n sounding reference signals when the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

7. The method comprises: determining, by the terminal device, not to transmit the one or more sounding reference signals when determining that a conflict occurs on the carrier corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

5. The method of claim 4, further comprising:

8. 8. The method of claim 4 or 7, wherein the first configuration information further includes eighth instruction information, the eighth instruction information instructing the terminal device not to transmit the one or more sounding reference signals when the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

9. The method comprises: receiving, by the terminal device, second information, the second information comprising: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or a tenth indication information, the tenth indication information including at least one tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; determining, by the terminal device, based on the second information, that the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit; 9. The method of claim 5, further comprising:

10. The method comprises: receiving, by the terminal device, eleventh indication information, the eleventh indication information instructing to transmit a first signal on the carrier corresponding to the one or more of the n sounding reference signals, the first signal including at least one of a Physical Downlink Control Channel (PDCCH) signal, a Physical Downlink Shared Channel (PDSCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, and a Physical Uplink Control Channel (PUCCH); determining, by the terminal device, a first symbol set, the first symbol set being the symbols occupied by the first signal, or the first symbol set being a union set of the symbols occupied by the first signal and a switching symbol, the switching symbol being located before the symbols occupied by the first signal or after the symbols occupied by the first signal, and a number of switching symbols being determined by the first switching time; determining, by the terminal device, that the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit if the first symbol set includes at least one symbol corresponding to the same time domain resource unit; 9. The method of claim 5, further comprising:

11. the positioning carrier is used only for transmitting the sounding reference signal, or The positioning carrier is used only to transmit the sounding reference signal and the physical random access channel (PRACH) signal; 11. The method according to any one of claims 1 to 10.

12. The n carriers corresponding to the n sounding reference signals are located in the same band.

12. The method according to any one of claims 1 to 11.

13. The method according to claim 1 , wherein the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

14. determining, by a network device, first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, the n sounding reference signals being carried in the same time domain resource unit, a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1; transmitting, by the network device, the first configuration information; A communication method comprising:

15. Prior to the step of transmitting, by the network device, the first configuration information, the method further comprises: receiving, by the network device, first information, the first information indicating capability information of a terminal device; determining, by the network device, the first configuration information based on the first information; 15. The method of claim 14, further comprising:

16. The first information is as follows: a first indication information indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; fifth indication information for indicating that the terminal device does not transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or sixth indication information for instructing the terminal device not to transmit the one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; The method of claim 15, comprising at least one of:

17. 17. The method of claim 14, wherein the first configuration information further includes seventh indication information, the seventh indication information instructing the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

18. 17. The method of claim 14, wherein the first configuration information further includes eighth instruction information, the eighth instruction information instructing the terminal device not to transmit the one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

19. The method comprises: Transmitting, by the network device, second information, the second information comprising: ninth indication information, the ninth indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; a tenth indication, the tenth indication indicating that at least one symbol corresponding to the same time domain resource unit is preempted; or 11th indication information, the 11th indication information instructing to transmit a first signal on the carrier corresponding to the one or more of the n sounding reference signals, the first signal including at least one of a Physical Downlink Control Channel (PDCCH) signal, a Physical Downlink Shared Channel (PDSCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, and a Physical Uplink Control Channel (PUCCH) signal. At least one of the steps 19. The method of any one of claims 14 to 18, further comprising:

20. The positioning carrier is not used to transmit the PDCCH signal, the PDSCH signal, the PUSCH signal, or the PUCCH signal.

20. The method according to any one of claims 14 to 19.

21. the positioning carrier is used only for transmitting the sounding reference signal, or The positioning carrier is used only to transmit the sounding reference signal and the physical random access channel (PRACH) signal; 21. The method according to any one of claims 14 to 20.

22. The n carriers corresponding to the n sounding reference signals are located in the same band.

22. The method according to any one of claims 14 to 21.

23. 23. The method according to claim 14, wherein the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

24. A communication device comprising a receiving unit and a transmitting unit, the receiving unit is configured to receive first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, a carrier corresponding to at least one of the n sounding reference signals being a positioning carrier, n being an integer greater than 1; the transmitting unit is configured to transmit the n sounding reference signals based on the first configuration information, and the n sounding reference signals are carried in a same time domain resource unit. Communications equipment.

25. The apparatus of claim 24 , wherein the sending unit is further configured to send first information, the first information indicating capability information of a terminal device.

26. The first information is as follows: a first indication information indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; fifth indication information for indicating that the terminal device does not transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or sixth indication information for instructing the terminal device not to transmit the one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; 26. The apparatus of claim 25, comprising at least one of:

27. The apparatus further comprises a processing unit; 27. The apparatus of claim 24, wherein if the processing unit determines that no conflict occurs on carriers corresponding to one or more of the n sounding reference signals in the same time domain resource unit, the transmitting unit is specifically configured to transmit the n sounding reference signals based on the first configuration information, and the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

28. When determining that a conflict occurs on the carrier corresponding to the one or more of the n sounding reference signals in the same time domain resource unit, the processing unit is configured to determine not to transmit the n sounding reference signals.

28. The apparatus of claim 27.

29. 29. The apparatus of claim 27 or 28, wherein the first configuration information further includes seventh indication information, the seventh indication information instructing the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to any one of the n sounding reference signals in the same time domain resource unit.

30. When determining that a conflict occurs on the carrier corresponding to the one or more of the n sounding reference signals in the same time domain resource unit, the processing unit is further configured to determine not to transmit the one or more sounding reference signals.

28. The apparatus of claim 27.

31. 31. The apparatus of claim 27 or 30, wherein the first configuration information further includes eighth instruction information, the eighth instruction information instructing the terminal device not to transmit the one or more sounding reference signals when the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

32. The receiving unit receives second information, the second information being: 9th indication information, the 9th indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; or and a tenth indication information, the tenth indication information including at least one tenth indication information indicating that at least one symbol corresponding to the same time domain resource unit is preempted; The processing unit is further configured to determine, based on the second information, that the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

32. Apparatus according to any one of claims 28 to 31.

33. The receiving unit is further configured to receive eleventh indication information, the eleventh indication information instructing to transmit the first signal on the carrier corresponding to the one or more of the n sounding reference signals, the first signal including the at least one of the Physical Downlink Control Channel PDCCH signal, the Physical Downlink Shared Channel PDSCH signal, the Physical Uplink Shared Channel PUSCH signal, and the Physical Uplink Control Channel PUCCH signal; the processing unit is further configured to determine a first symbol set, the first symbol set being the symbols occupied by the first signal, or the first symbol set being a union set of the symbols occupied by the first signal and a switching symbol, the switching symbol being located before the symbols occupied by the first signal or after the symbols occupied by the first signal, and a number of switching symbols being determined by the first switching time; If the processing unit determines that the first symbol set includes at least one symbol corresponding to the same time domain resource unit, the processing unit determines that the conflict occurs on the carrier corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

32. Apparatus according to any one of claims 28 to 31.

34. the positioning carrier is used only for transmitting the sounding reference signal, or The positioning carrier is used only to transmit the sounding reference signal and the physical random access channel (PRACH) signal; 34. Apparatus according to any one of claims 24 to 33.

35. The n carriers corresponding to the n sounding reference signals are located in the same band.

35. Apparatus according to any one of claims 24 to 34.

36. 36. The apparatus of claim 26, wherein the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

37. A communication device comprising a processing unit and a transceiver unit, the processing unit is configured to determine first configuration information, the first configuration information being used to configure n sounding reference signals, the sounding reference signals being used for positioning, the n sounding reference signals being carried in the same time domain resource unit, a carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1; the transceiver unit is configured to transmit the first configuration information; Communications equipment.

38. The transceiver unit is further configured to receive first information, the first information indicating capability information of a terminal device; The processing unit is further configured to determine the first configuration information based on the first information.

38. The apparatus of claim 37.

39. The first information is as follows: a first indication information indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth being used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, a carrier corresponding to at least one of the m sounding reference signals being a positioning carrier, the m sounding reference signals being configured to be carried in the same time domain resource unit, m being an integer greater than 1; second indication information indicating a number of consecutive carriers corresponding to the first maximum aggregate bandwidth; Third indication information indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA includes at least one positioning carrier; fourth indication information indicating a first switching time, the first switching time being used to switch between transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set by the terminal device, the first carrier set not including a positioning carrier, and the second carrier set including at least one positioning carrier; fifth indication information for indicating that the terminal device does not transmit the m sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; or sixth indication information for instructing the terminal device not to transmit the one or more sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the m sounding reference signals in the same time domain resource unit; 39. The apparatus of claim 38, comprising at least one of:

40. 40. The apparatus of claim 37, wherein the first configuration information further comprises seventh indication information, the seventh indication information instructing the terminal device not to transmit the n sounding reference signals when a conflict occurs on a carrier corresponding to one or more of the n sounding reference signals in the same time domain resource unit.

41. 41. The apparatus of claim 37, wherein the first configuration information further comprises eighth instruction information indicating that the terminal device should not transmit the one or more sounding reference signals when the conflict occurs on the carriers corresponding to the one or more of the n sounding reference signals in the same time domain resource unit.

42. The transceiver unit transmits second information, the second information comprising: ninth indication information, the ninth indication information indicating that at least one symbol corresponding to the same time domain resource unit is a Flexible symbol; a tenth indication, the tenth indication indicating that at least one symbol corresponding to the same time domain resource unit is preempted; or 11th indication information, the 11th indication information instructing to transmit a first signal on the carrier corresponding to the one or more of the n sounding reference signals, the first signal including at least one of a Physical Downlink Control Channel (PDCCH) signal, a Physical Downlink Shared Channel (PDSCH) signal, a Physical Uplink Shared Channel (PUSCH) signal, and a Physical Uplink Control Channel (PUCCH) signal. and further configured to include at least one of:

42. Apparatus according to any one of claims 37 to 41.

43. The positioning carrier is not used to transmit the PDCCH signal, the PDSCH signal, the PUSCH signal, or the PUCCH signal.

43. Apparatus according to any one of claims 37 to 42.

44. the positioning carrier is used only for transmitting the sounding reference signal, or The positioning carrier is used only to transmit the sounding reference signal and the physical random access channel (PRACH) signal; 44. Apparatus according to any one of claims 37 to 43.

45. The n carriers corresponding to the n sounding reference signals are located in the same band.

45. Apparatus according to any one of claims 37 to 44.

46. 46. ​​The apparatus of claim 37, wherein the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

47. 1. A communications device comprising at least one processor coupled to a memory, the memory is configured to store programs or instructions; The at least one processor is configured to execute the program or instructions to enable the device to perform the method according to any one of claims 1 to 13, or The at least one processor is configured to execute the program or instructions to enable the device to perform the method according to any one of claims 14 to 23. Communications equipment.

48. 24. A computer readable storage medium having instructions stored thereon that, when executed by a computer, perform the method of any one of claims 1 to 23.

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