A communication method and a communication device

Abstract

The 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, which is used to configure n sounding reference signals, wherein the sounding reference signals are used for positioning, at least one of the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1; and the terminal device transmits 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. In some embodiments, the signal received by the receiving end of the n sounding reference signals is a signal obtained by performing carrier aggregation on the n sounding reference signals on corresponding n carriers. By using the bandwidth aggregation characteristics of different carriers, the receiving end of the n sounding reference signals can obtain more accurate positioning measurement results based on the positioning mode of carrier aggregation (CA).

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to a communication method and a communication device. BACKGROUND

[0002] In a mobile communication system, positioning is one of important functions. In the implementation process of positioning, a terminal device can send a reference signal for positioning to a network device, so that the network device performs measurement based on the measurement result obtained from the reference signal for positioning to realize positioning of the terminal device.

[0003] At present, it is generally considered that the positioning accuracy of the terminal device is largely dependent on the bandwidth of the carrier occupied by the reference signal for positioning, that is, the greater the bandwidth of the carrier occupied by the reference signal, the higher the positioning accuracy obtained by the network device based on the reference signal may be; on the contrary, the smaller the bandwidth of the carrier occupied by the reference signal, the lower the positioning accuracy obtained by the network device based on the reference signal may be.

[0004] However, since the reference signal for positioning sent by the terminal device and other signals (such as data, control signaling, etc.) are generally carried on the same carrier, which leads to the bandwidth of the carrier occupied by the reference signal for positioning being small or even being occupied. Therefore, how to improve the positioning accuracy is a technical problem to be solved. SUMMARY

[0005] The present application provides a communication method and a communication device for improving the positioning accuracy of a terminal device.

[0006] The first aspect of the embodiment of the present application provides a communication method, which is executed by a terminal device, or the method is executed by part components (such as a processor, a chip or a chip system, etc.) in the terminal device, or the method can also be realized by a logic module or software which can realize all or part of the functions of the terminal device. In the first aspect and its possible implementation manners, the communication method is taken as an example to be described which is executed by the terminal device. In the method, the terminal device receives first configuration information, the first configuration information is used for configuring n sounding reference signals, wherein the sounding reference signal is used for positioning, the carrier corresponding to at least one sounding reference signal in the n sounding reference signals is a positioning carrier, and n is an integer greater than 1.

[0007] Based on the above technical solution, the first configuration information received by the terminal device is used to configure n sounding reference signals for positioning, and at least one sounding reference signal in the n sounding reference signals corresponds to a positioning carrier. Therefore, the terminal device can subsequently transmit at least one sounding reference signal in the n sounding reference signals on the positioning carrier based on the first configuration information. In this way, by carrying the at least one sounding reference signal on the positioning carrier, the situation of the carrier bandwidth becoming smaller or even the carrier being preempted due to the sounding reference signal for positioning and other signals (such as data, control signaling, etc.) being carried on the same carrier can be avoided, so as to improve the positioning accuracy of the terminal device.

[0008] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which can also be described as the first configuration information being used to configure n signals for positioning. The name of the signal for positioning in the current communication system can be sounding reference signal (SRS), and the name of the SRS in the future communication system can change with the evolution of the communication system.

[0009] In addition, in the present application, the "positioning carrier" can also be referred to as a carrier dedicated to positioning, a carrier for positioning, a sounding signal-only carrier (SRS-only carrier), a positioning dedicated carrier, a positioning dedicated uplink carrier, a positioning secondary cell, a sounding signal-only secondary cell, or other names, which are not limited here. It should be noted that in the present application, the positioning carrier on the frequency division duplexing spectrum (FDD spectrum, also called paired spectrum in the protocol) refers to that the downlink carrier is not configured for communication (PDCCH / PDSCH) reception, and the uplink carrier is not configured for communication (PUCCH / PUSCH) transmission. On the time division duplexing spectrum (TDD spectrum, also called unpaired spectrum in the protocol) and unlicensed TDD spectrum (Unlicensed spectrum, also called shared access spectrum in the protocol), the carrier is not configured for communication (PDCCH / PDSCH) when used for downlink, and is not configured for communication (PUCCH / PUSCH) when used for uplink.

[0010] In a possible implementation of the first aspect, the terminal device sends 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.

[0011] Based on the above technical solution, after receiving the first configuration information, the terminal device sends the n sounding reference signals based on the first configuration information in the same time domain resource unit, so that the receiving end of the n sounding reference signals can perform measurement based on the n sounding reference signals to realize positioning of the terminal device. In other words, the signal received by the receiving end of the n sounding reference signals is a signal obtained by carrier aggregation of the n sounding reference signals on the corresponding n carriers. By using the bandwidth aggregation characteristics of different carriers, the receiving end of the n sounding reference signals can obtain more accurate positioning measurement results based on a carrier aggregation (CA) positioning manner.

[0012] It should be noted that, in the present application, the network device that sends the first configuration information to the terminal device and the network device that receives the n sounding reference signals can be the same network device or different network devices, which is not limited here.

[0013] Optionally, in the same time domain resource unit, the time domain resource unit can be a symbol, a time slot, a subframe, a frame, or other time domain resource units, which is not limited here.

[0014] In a possible implementation of the first aspect, before the terminal device receives the first configuration information, the method further includes: the terminal device sends first information, the first information being used to indicate capability information of the terminal device.

[0015] Based on the above technical solution, the terminal device can further send first information used to indicate 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 take the first information as one of the determination bases of the first configuration information.

[0016] In a possible implementation of the first aspect, the first information includes at least one of the following:

[0017] The first indication information is used to indicate a first maximum aggregation bandwidth; the first maximum aggregation bandwidth is used to send m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried in the same time domain resource unit, and m is an integer greater than 1; or,

[0018] The second indication information is used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or

[0019] The third indication information is used for indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA contains at least one positioning carrier; or

[0020] The fourth indication information is used for indicating a first switching time, the first switching time is used for switching between signal transmission on a first carrier set and sounding reference signal transmission on a second carrier set by the terminal device, the first carrier set does not contain a positioning carrier, and the second carrier set contains at least one positioning carrier; or

[0021] The fifth indication information is used for indicating that the terminal device does not transmit the m sounding reference signals when carriers corresponding to one or more sounding reference signals in the m sounding reference signals collide on the same time domain resource unit; or

[0022] The sixth indication information is used for indicating that the terminal device does not transmit one or more sounding reference signals when carriers corresponding to the one or more sounding reference signals in the m sounding reference signals collide on the same time domain resource unit.

[0023] Based on the above technical solutions, the first information used for indicating the capability information of the terminal device can include the above at least one, so as to facilitate the network device to explicitly determine that the terminal device has the capability of supporting the sounding reference signal transmission on the positioning carrier based on the first information, and to issue the first configuration information to the terminal device.

[0024] In a possible implementation manner of the first aspect, the terminal device transmits the n sounding reference signals based on the first configuration information includes: when carriers corresponding to one or more sounding reference signals in the n sounding reference signals do not collide on the same time domain resource unit, the terminal device transmits the n sounding reference signals based on the first configuration information, wherein 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).

[0025] Based on the technical solution, after receiving the first configuration information, the terminal device can need to send the n sounding reference signals based on the first configuration information. In this process, the terminal device can send the n sounding reference signals based on the first configuration information when it is determined that the carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit. In other words, the terminal device sends the n sounding reference signals based on the first configuration information when it is determined that the n sounding reference signals do not collide with other scheduled signals (of the terminal device or of other terminal devices) on the corresponding time-frequency domain resources, so as to avoid affecting the transmission of the other scheduled signals and also to avoid the n sounding reference signals failing to be transmitted.

[0026] In a possible implementation of the first aspect, the method further includes: when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, the terminal device determines not to send the n sounding reference signals.

[0027] Based on the technical solution, after receiving the first configuration information, the terminal device can need to send the n sounding reference signals based on the first configuration information. In this process, the terminal device can send the n sounding reference signals based on the first configuration information when it is determined that the carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit. In other words, the terminal device sends the n sounding reference signals based on the first configuration information when it is determined that the n sounding reference signals do not collide with other scheduled signals (of the terminal device or of other terminal devices) on the corresponding time-frequency domain resources, so as to avoid affecting the transmission of the other scheduled signals and also to avoid the n sounding reference signals failing to be transmitted.

[0028] It should be noted that, when the same time domain resource unit is a same time slot, subframe, or frame, the same time domain resource unit can include multiple symbols. In this case, the terminal device determining not to send the n sounding reference signals can also be expressed as: the terminal device determining not to send the n sounding reference signals on the symbols that collide on the same time domain resource unit. In other words, the terminal device can send the n sounding reference signals on the symbols that do not collide on the same time domain resource unit.

[0029] For example, when the same time domain resource unit is 4 symbols in a time slot, and only one symbol collides, the terminal device determining not to send the n sounding reference signals can also be expressed as: the terminal device determining not to send the n sounding reference signals on the symbol. In other words, the terminal device can send the n sounding reference signals on the other three symbols.

[0030] In a possible implementation manner of the first aspect, the first configuration information further comprises seventh indication information, the seventh indication information being used for indicating that the terminal device does not send the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0031] It should be understood that in the implementation manner, the seventh indication information can also be expressed as: the seventh indication information is used for indicating that the same time domain resource unit is not used to carry the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0032] Based on the above technical solution, the first configuration information received by the terminal device can further comprise seventh indication information, and the seventh indication information is used for indicating that the terminal device does not send all the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit. 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 sent in the case that the n sounding reference signals correspond to other scheduled signals (of the terminal device or other terminal devices) that collide on corresponding time-frequency domain resources.

[0033] Optionally, the seventh indication information can also be carried in other messages different from the first configuration information, which is not limited here.

[0034] In a possible implementation manner of the first aspect, the method further comprises: when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit, the terminal device determines not to send the one or more sounding reference signals.

[0035] Based on the above technical solution, after receiving the first configuration information, the terminal device can not need to send the n sounding reference signals. In this process, when the terminal device determines that the carrier corresponding to one or more of the n sounding reference signals collides, the terminal device determines not to send part of the n sounding reference signals, that is, the terminal device determines not to send the one or more sounding reference signals. In other words, when the terminal device determines that the time-frequency domain resource corresponding to one or more of the n sounding reference signals collides with other scheduled signals (of the terminal device or other terminal devices), the terminal device sends other scheduled signals on the time-frequency domain resource corresponding to the one or more sounding reference signals (stops signal transmission or) without sending the n sounding reference signals, so as to avoid affecting the transmission of other scheduled signals.

[0036] In a possible implementation of the first aspect, the first configuration information further includes eighth indication information, and the eighth indication information is used to indicate that, when the carrier corresponding to one or more of the n sounding reference signals collides on the same time domain resource unit, the terminal device does not send the one or more sounding reference signals.

[0037] It should be understood that, in this implementation, the eighth indication information can also be expressed as: the eighth indication information is used to indicate that, when the carrier corresponding to one or more of the n sounding reference signals collides on the same time domain resource unit, the same time domain resource unit is not used to carry the one or more sounding reference signals.

[0038] Based on the above technical solution, the first configuration information received by the terminal device can further include eighth indication information, and the eighth indication information is used to indicate that, when the carrier corresponding to one or more of the n sounding reference signals collides on the same time domain resource unit, the terminal device does not send the one or more sounding reference signals. After receiving the first configuration information, the terminal device determines, based on the eighth indication information, that the one or more sounding reference signals do not need to be sent in the case that the one or more sounding reference signals collide with other scheduled signals (of the terminal device or other terminal devices) on the corresponding time-frequency domain resource.

[0039] Optionally, the eighth indication information can also be carried in other messages different from the first configuration information, which is not limited here.

[0040] In a possible implementation of the first aspect, the method further includes: the terminal device receives second information, and the second information includes at least one of the following:

[0041] a ninth indication information, the ninth indication information being used for indicating that at least one symbol corresponding to the same time domain resource unit is a flexible symbol;

[0042] a tenth indication information, the tenth indication information being used for indicating that at least one symbol corresponding to the same time domain resource unit is preempted;

[0043] The terminal device determines, based on the second information, that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0044] Based on the above technical solutions, the terminal device can further receive second information containing the at least one item of information, so that the terminal device determines, based on the at least one item of information, that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit the one or more sounding reference signals).

[0045] In a possible implementation manner of the first aspect, the method further includes: the terminal device receives eleventh indication information, the eleventh indication information being used for indicating that a first signal is transmitted on the carriers corresponding to one or more of the n sounding reference signals, where 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) signal; the terminal device determines a first symbol set, the first symbol set being symbols occupied by the first signal or the first symbol set being a union set of symbols occupied by the first signal and switching symbols, the switching symbols being before or after the symbols occupied by the first signal, and the number of the switching symbols being determined by a first switching time; when the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0046] It should be noted that the first switching time is used for switching 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 does not include a positioning carrier, and the second carrier set includes at least one positioning carrier.

[0047] Based on the above technical solution, the terminal device can further receive eleventh indication information indicating that one or more of the n sounding reference signals correspond to a carrier on which the first signal is transmitted, and the terminal device determines a first symbol set based on the eleventh indication information, the first symbol set being a symbol occupied by the first signal or the first symbol set being a union of the symbol occupied by the first signal and a switching symbol. When the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the terminal device determines that the carrier corresponding to one or more of the n sounding reference signals conflicts on the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit the one or more sounding reference signals) to avoid affecting the transmission of the first signal.

[0048] It should be understood that the eleventh indication information can be semi-static configuration information (for example, radio resource control (RRC) configuration) or dynamic scheduling information (for example, downlink control information (DCI) scheduling), which is not limited here.

[0049] In a possible implementation of the first aspect, the positioning carrier is not used to transmit PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals.

[0050] In a possible implementation of the first aspect, the positioning carrier is only used to transmit the sounding reference signal; or, the positioning carrier is only used to transmit the sounding reference signal and a physical random access channel (PRACH) signal.

[0051] Based on the above technical solution, at least one of the n sounding reference signals configured by the first configuration information corresponds to a positioning carrier, and the positioning carrier is not used to transmit PDCCH signals, PDSCH signals, PUSCH signals and PUCCH signals, that is, the positioning carrier does not need to adapt the transceiving of PDCCH signals, PDSCH signals, PUSCH signals and PUCCH signals. Therefore, for the terminal device, the terminal device only needs to support the signal of the positioning carrier (the signal includes the sounding reference signal, or the signal includes the sounding reference signal and the PRACH signal) in the radio frequency module, and the terminal device can be equipped with a simple baseband signal processing capability on this carrier in the baseband processing module without configuring the processing capability of PDCCH signals, PDSCH signals, PUSCH signals and PUCCH signals and other complex signals, so as to simplify or save the baseband processing capability of the terminal device, and realize low-cost carrier aggregation (CA) positioning.

[0052] Similarly, for the network device, the network device only needs to support the signal of the positioning carrier (the signal includes the sounding reference signal, or the signal includes the sounding reference signal and the PRACH signal) in the radio frequency module, and the network device can be equipped with a simple baseband signal processing capability on this carrier in the baseband processing module without configuring the processing capability of PDCCH signals, PDSCH signals, PUSCH signals and PUCCH signals and other complex signals, so as to simplify or save the baseband processing capability of the network device, and realize low-cost CA positioning.

[0053] In a possible implementation manner of the first aspect, the n carriers corresponding to the n sounding reference signals are located in a same band.

[0054] Based on the above technical solution, since the different carriers located in the same band are generally collocated deployment (or called co-sited), it can be considered that the uplink and downlink timings of the different carriers located in the same band are synchronous, so that the n sounding reference signals transmitted by the terminal device can share the same synchronization information, so as to save the overhead.

[0055] Optionally, when n is greater than or equal to 3, at least two of the n carriers corresponding to the n sounding reference signals are located in a same band.

[0056] In a possible implementation manner of the first aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0057] Based on the above technical solution, in the case that the terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference, so that the receiving end of the n sounding reference signals can utilize the bandwidth aggregation characteristics of different carriers to obtain more accurate positioning measurement results based on a carrier aggregation (CA) positioning mode.

[0058] It should be understood that, in the present application, n sounding reference signals sharing an antenna port means that the channel states of the n sounding reference signals can be inferred from each other. The definition of an antenna port in the protocol is as follows (TS 38.211): 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.

[0059] It should be noted that the above method can also be expressed as: the channel conveyed by a symbol of one antenna port (through one reference signal or one physical layer channel) can be inferred from the channel conveyed by the same symbol of the same antenna port (through one reference signal or one physical layer channel), that is, if the channels conveyed by two symbols can be inferred from each other, then the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols mapped by the two reference signals correspond to the same antenna port.

[0060] Optionally, two signals sharing an antenna port (corresponding to the same antenna port) is the most stringent requirement for two signals in the protocol, which usually requires that the same physical antenna or the same physical antenna set is used to emit the same precoding, and there is no radio frequency phase jump in the process, that is, the channels of the two signals are exactly the same. At the same time, the protocol allows a certain degree of relaxation for "the channels of the two signals are exactly the same", for example, the channel phase change caused by the Doppler frequency offset caused by the high-speed movement of the terminal or the small residual deviation of the transmit and receive radio frequencies on different symbols can also be considered as a common port. At this time, the receiving end needs to estimate the residual Doppler frequency based on the assumption of the common port and eliminate it, and then the channels can be considered to be exactly the same.

[0061] Optionally, the n sounding signals have a phase difference, which means a less stringent relationship than the co-port requirement. The current protocol does not define such a concept. Taking n=2 as an example, two signals have a "phase difference", which specifically means that the channels can be mutually inferred in addition to a certain fixed random phase difference between the two signals. Specifically, it corresponds to the same physical antenna or the same physical antenna set corresponding to the same precoding being emitted by the two signals, and in this process, the two signals can have a radio frequency phase jump, that is, the channels on the two signals are completely the same except for the random radio frequency phase. The main reason for such a radio frequency phase jump is that two independent local oscillators are used for up-conversion or down-conversion, and the two independent local oscillators do not have consistent or stable initial phases, thereby causing a phase difference between the two signals. When there is a Doppler, similar relaxation is also allowed.

[0062] It should be noted that the phase difference and the Doppler are both phase changes in a direct sense, but they are different. When describing the Doppler, it is mainly used to describe the phase change of two signals at the same frequency point (for example, the same CC / BWP) over time, and when describing the phase difference, it is mainly used to describe the phase change of two signals at different frequency points (for example, different CC / BWPs) that does not change linearly over time.

[0063] The second aspect of the present application provides a communication method, which is executed by a network device, or the method is executed by part of components (such as processors, chips or chip systems, etc.) in the network device, or the method can also be implemented by a logic module or software that can realize all or part of the functions of the network device. In the second aspect and its possible implementation manners, the communication method executed by the network device is taken as an example for description. In the method, the network device determines first configuration information, the first configuration information is used for configuring n sounding reference signals, wherein the sounding reference signal is used for positioning, the n sounding reference signals are carried in a same time domain resource unit, at least one sounding reference signal in the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1; and the network device sends the first configuration information.

[0064] Based on the above technical solution, the first configuration information determined by the network device is used to configure n sounding reference signals for positioning, and at least one sounding reference signal in the n sounding reference signals corresponds to a positioning carrier. After the terminal device receives the first configuration information, the terminal device can subsequently transmit at least one sounding reference signal in the n sounding reference signals on the positioning carrier based on the first configuration information. In this way, by carrying the at least one sounding reference signal on the positioning carrier, the situation that the carrier bandwidth becomes smaller or even the carrier is preempted due to the sounding reference signal for positioning and other signals (such as data, control signaling, etc.) being carried on the same carrier can be avoided, so as to improve the positioning accuracy of the terminal device.

[0065] In addition, since the n sounding reference signals are carried on the same time domain resource unit, that is, the signal transmitted by the terminal device is a signal obtained by performing carrier aggregation on the n sounding reference signals on the corresponding n carriers, by using the bandwidth aggregation characteristics of different carriers, the receiving end of the n sounding reference signals can obtain more accurate positioning measurement results based on the positioning mode of carrier aggregation (CA).

[0066] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which can also be expressed as the first configuration information is used to configure n signals for positioning. The name of the signal for positioning in the current communication system can be sounding reference signal (SRS), and in the future communication system, the name of the SRS can change with the evolution of the communication system.

[0067] 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 can be the same network device or different network devices, which is not limited here.

[0068] Optionally, in the same time domain resource unit, the time domain resource unit can be a symbol, a slot, a subframe, a frame, or other time domain resource units, which is not limited here.

[0069] In a possible implementation manner of the second aspect, before the network device transmits the first configuration information, the method further includes: the network device receives first information, the first information being used to indicate the capability information of the terminal device; and the network device determines the first configuration information based on the first information.

[0070] Based on the 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 determination bases of the first configuration information.

[0071] In a possible implementation of the second aspect, the first information includes at least one of the following:

[0072] first indication information, used to indicate a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used to send m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, and the m sounding reference signals are configured to be carried on the same time domain resource unit, m is an integer greater than 1; or,

[0073] second indication information, used to indicate a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or,

[0074] third indication information, used to indicate 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; or,

[0075] fourth indication information, used to indicate a first switching time, the first switching time is used for switching between sending signals on a first carrier set and sending sounding reference signals on a second carrier set by the terminal device, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier; or,

[0076] fifth indication information, used to indicate that the terminal device does not send the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; or,

[0077] sixth indication information, used to indicate that the terminal device does not send one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit.

[0078] Based on the technical solution, the first information indicating the capability information of the terminal device can include at least one of the above, so that the network device can determine that the terminal device has the capability of supporting sending sounding reference signals on a positioning carrier based on the first information, and issue the first configuration information to the terminal device.

[0079] In a possible implementation of the second aspect, the first configuration information further includes seventh indication information, the seventh indication information being used to indicate that the terminal device does not send the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0080] It should be understood that in this implementation, the seventh indication information can also be expressed as: the seventh indication information is used to indicate that the same time domain resource unit is not used to carry the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0081] Based on the above technical solution, the first configuration information sent by the network device can further include seventh indication information, and the seventh indication information is used to indicate that the terminal device does not send all the n sounding reference signals when one or more sounding reference signals of the n sounding reference signals correspond to carriers that collide on the same time domain resource unit. After receiving the first configuration information, the terminal device can determine, based on the seventh indication information, that the n sounding reference signals do not need to be sent in the case where the n sounding reference signals correspond to other scheduled signals (of the terminal device or other terminal devices) that collide on corresponding time-frequency domain resources.

[0082] In a possible implementation of the second aspect, the first configuration information further includes eighth indication information, the eighth indication information being used to indicate that the terminal device does not send one or more sounding reference signals of the n sounding reference signals when the one or more sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0083] It should be understood that in this implementation, the eighth indication information can also be expressed as: the eighth indication information is used to indicate that the same time domain resource unit is not used to carry one or more sounding reference signals of the n sounding reference signals when the one or more sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0084] Based on the above technical solution, the first configuration information sent by the network device can further include eighth indication information, and the eighth indication information is used to indicate that the terminal device does not send one or more of the n sounding reference signals when the carrier corresponding to the one or more sounding reference signals collides on the same time domain resource unit. After receiving the first configuration information, the terminal device determines, based on the eighth indication information, that the one or more sounding reference signals do not need to be sent in the case that the one or more sounding reference signals collide with other scheduled signals (of the terminal device or other terminal devices) on the corresponding time-frequency domain resource.

[0085] In a possible implementation of the second aspect, the method further includes:

[0086] The network device sends second information, and the second information includes at least one of the following:

[0087] Ninth indication information, the ninth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or,

[0088] Tenth indication information, the tenth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted;

[0089] Eleventh indication information, the eleventh indication information is used to indicate that a first signal is transmitted on the carrier corresponding to one or more of the n sounding reference signals, 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) signal.

[0090] Based on the above technical solution, the network device can further send second information containing the at least one information, so that the terminal device determines, based on the at least one information, that one or more of the n sounding reference signals collide on the same time domain resource unit, and determines whether to send the n sounding reference signals (or determines whether to send the one or more sounding reference signals).

[0091] In a possible implementation of the second aspect, the positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0092] In a 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 a physical random access channel (PRACH) signal.

[0093] Based on the above technical solution, at least one of the n sounding reference signals configured by the first configuration information corresponds to a positioning carrier, and the positioning carrier is not used for transmitting PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, that is, the positioning carrier does not need to adapt the transmission and reception of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals. Therefore, for the terminal device, the terminal device only needs to support the transmission and reception of signals of the positioning carrier (the signals include sounding reference signals, or the signals include sounding reference signals and PRACH signals) in the radio frequency module, and the terminal device can be equipped with simple baseband signal processing capability on this carrier in the baseband processing module without configuring the processing capability of complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, so as to simplify or save the baseband processing capability of the terminal device, and realize low-cost carrier aggregation (CA) positioning.

[0094] Similarly, for the network device, the network device only needs to support the transmission and reception of signals of the positioning carrier (the signals include sounding reference signals, or the signals include sounding reference signals and PRACH signals) in the radio frequency module, and the network device can be equipped with simple baseband signal processing capability on this carrier in the baseband processing module without configuring the processing capability of complex signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, so as to simplify or save the baseband processing capability of the network device, and realize low-cost CA positioning.

[0095] In a possible implementation of the second aspect, the n carriers corresponding to the n sounding reference signals are located in the same band.

[0096] Based on the above technical solution, since different carriers located in the same band are generally collocated deployment (or co-located), it can be considered that the uplink and downlink timings of different carriers located in the same band are synchronized, so that the n sounding reference signals transmitted by the terminal device can share the same synchronization information, to save the overhead.

[0097] Optionally, when n is greater than or equal to 3, at least two of the n carriers corresponding to the n sounding reference signals are located in the same band.

[0098] In a 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.

[0099] Based on the above technical solution, in the case that the terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference, so that the receiving end of the n sounding reference signals can utilize the bandwidth aggregation characteristics of different carriers to obtain more accurate positioning measurement results based on a carrier aggregation (CA) positioning mode.

[0100] It should be understood that, in the present application, the n sounding reference signals share an antenna port means that the channel states of the n sounding reference signals can be inferred from each other. The definition of an antenna port in the protocol is as follows (TS 38.211): 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.

[0101] It should be noted that the above method can also be expressed as: the channel conveyed by a symbol of one antenna port (through one reference signal or one physical layer channel) can be inferred from the channel conveyed by the symbol of the same antenna port (through one reference signal or one physical layer channel), that is, if the channel conveyed by two symbols can be inferred from each other, then the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols mapped by the two reference signals correspond to the same antenna port.

[0102] Optionally, two signals co-antenna port (corresponding to the same antenna port) is the most stringent requirement for two signals in the protocol, which usually requires that the two signals are transmitted by using the same physical antenna or the same physical antenna set with the same precoding, and there is no radio frequency phase jump in the process, that is, the channels of the two signals are completely the same. At the same time, the protocol allows a certain degree of relaxation for "the channels of the two signals being completely the same", for example, the channel phase change caused by the Doppler frequency offset in different symbols when the terminal moves at a high speed or there is a small residual deviation in the transmission and reception frequency, which can also be considered as co-port. At this time, the receiving end needs to estimate the residual Doppler frequency based on the assumption of co-port and eliminate it, and then the channels can be considered completely the same.

[0103] Optionally, n probe signals have a phase difference, which means a slightly lower relationship than the co-port requirement. The protocol does not define such a concept at present. Taking n = 2 as an example, two signals with "phase difference" specifically means that the channels can be mutually inferred in addition to a certain fixed random phase difference between the two signals. Specifically, it corresponds to the two signals being transmitted by using the same physical antenna or the same physical antenna set corresponding to the same precoding, and there can be a radio frequency phase jump between the two signals in the process, that is, the channels of the two signals are completely the same except for the random radio frequency phase. The main reason for such radio frequency phase jump is that two independent local oscillators are used for up-conversion or down-conversion, and the two independent local oscillators do not have consistent or stable initial phase, thereby causing a phase difference between the two signals. When there is a Doppler, similar relaxation is also allowed.

[0104] It should be noted that the phase difference and the Doppler are intuitively phase changes, but they are different. When describing the Doppler, it is mainly used to describe the phase change of the two signals at the same frequency point (such as the same CC / BWP) which basically presents linear change with time, and when describing the phase difference, it is mainly used to describe the phase change of the two signals at different frequency points (such as different CC / BWPs) which does not change linearly with time.

[0105] The third aspect of the present application provides a communication device, which can implement the method in the first aspect or any possible implementation manner of the first aspect. The device includes corresponding units or modules for performing the above method. The units or modules included in the device can be realized by software and / or hardware. For example, the device can be a terminal device, or the device can be a component (such as a processor, a chip or a chip system, etc.) in the terminal device, or the device can also be a logic module or software that can realize all or part of the terminal device functions.

[0106] The communication device includes a transceiver unit and a processing unit.

[0107] The receiving unit is configured to receive first configuration information, the first configuration information being used for configuring n sounding reference signals, wherein the sounding reference signals are used for positioning, at least one of the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1.

[0108] The sending unit is configured to send the n sounding reference signals based on the first configuration information, wherein the n sounding reference signals are carried on a same time domain resource unit.

[0109] In a possible implementation manner of the third aspect, the sending unit is further configured to send first information, the first information being used for indicating capability information of the terminal device.

[0110] In a possible implementation manner of the third aspect, the first information includes at least one of the following:

[0111] first indication information, used for indicating a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used for sending m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or,

[0112] second indication information, used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or,

[0113] third indication information, used for 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; or,

[0114] fourth indication information, used for indicating a first switching time, the first switching time being used for switching between sending signals on a first carrier set and sending sounding reference signals on a second carrier set by the terminal device, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier; or,

[0115] fifth indication information, used for indicating that the terminal device does not send the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals occur conflict on the same time domain resource unit; or,

[0116] sixth indication information, used for indicating that the terminal device does not send one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals occur conflict on the same time domain resource unit.

[0117] In a possible implementation manner of the third aspect, the apparatus further includes a processing unit;

[0118] The sending unit is specifically configured to send the n sounding reference signals based on the first configuration information when the processing unit determines that the carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit, and the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

[0119] In a possible implementation manner of the third aspect,

[0120] The processing unit is configured to determine not to send the n sounding reference signals when it is determined that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0121] In a possible implementation manner of the third aspect, the first configuration information further includes seventh indication information, and the seventh indication information is used to indicate that the terminal device does not send the n sounding reference signals when the carrier corresponding to any of the n sounding reference signals collides on the same time domain resource unit.

[0122] In a possible implementation manner of the third aspect,

[0123] The processing unit is further configured to determine not to send one or more of the n sounding reference signals when it is determined that the carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

[0124] In a possible implementation manner of the third aspect, the first configuration information further includes eighth indication information, and the eighth indication information is used to indicate that the terminal device does not send one or more of the n sounding reference signals when the carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

[0125] In a possible implementation manner of the third aspect,

[0126] The receiving unit is further configured to receive second information, and the second information includes at least one of the following:

[0127] ninth indication information, and the ninth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or

[0128] tenth indication information, and the tenth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted.

[0129] The processing unit is further configured to determine that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit based on the second information.

[0130] In a possible implementation of the third aspect,

[0131] The receiving unit is further configured to receive eleventh indication information, the eleventh indication information being used to indicate that a first signal is transmitted on the carriers corresponding to one or more of the n sounding reference signals, wherein the first signal comprises 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.

[0132] The processing unit is further configured to determine a first symbol set, the first symbol set being symbols occupied by the first signal or the first symbol set being a union set of symbols occupied by the first signal and switching symbols, the switching symbols being before or after the symbols occupied by the first signal, and the number of the switching symbols being determined by a first switching time.

[0133] When the processing unit determines that the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the processing unit determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0134] In a possible implementation of the third aspect,

[0135] The positioning carrier is not used to transmit a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0136] In a possible implementation of the third aspect,

[0137] The positioning carrier is only used to transmit the sounding reference signal.

[0138] Or,

[0139] The positioning carrier is only used to transmit the sounding reference signal and a physical random access channel (PRACH) signal.

[0140] In a possible implementation of the third aspect,

[0141] The n carriers corresponding to the n sounding reference signals are located in the same frequency band (band).

[0142] In a 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.

[0143] In a third aspect, the modules of the communication apparatus can be further configured to perform the steps in the possible implementation manners of the first aspect, and achieve the corresponding technical effects. For details, refer to the first aspect, which will not be repeated here.

[0144] The fourth aspect of the present application provides a communication apparatus, which can implement the method in the second aspect or any possible implementation manner of the second aspect. The apparatus includes corresponding units or modules for performing the above method. The units or modules included in the apparatus can be realized by software and / or hardware. For example, the apparatus can be a network device, or the apparatus can be a component (such as a processor, a chip, or a chip system, etc.) in the network device, or the apparatus can also be a logic module or software that can implement all or part of the network device functions.

[0145] The communication apparatus includes a processing unit and a transceiver unit.

[0146] The processing unit is configured to determine first configuration information, the first configuration information being used for configuring n sounding reference signals, wherein the sounding reference signals are used for positioning, the n sounding reference signals are carried on a same time domain resource unit, at least one of the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1.

[0147] The transceiver unit is configured to send the first configuration information.

[0148] In a possible implementation manner of the fourth aspect,

[0149] The transceiver unit is further configured to send first information, the first information being used for indicating capability information of the terminal device.

[0150] The processing unit is further configured to determine the first configuration information based on the first information.

[0151] In a possible implementation manner of the fourth aspect, the first information includes at least one of the following:

[0152] First indication information is used for indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth is used for sending m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or

[0153] Second indication information is used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or

[0154] The third indication information is used to indicate 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; or

[0155] The fourth indication information is used to indicate a first switching time, the first switching time being used for switching between sending a signal on the first carrier set and sending a sounding reference signal on the 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; or

[0156] The fifth indication information is used to indicate that the terminal device does not send the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; or

[0157] The sixth indication information is used to indicate that the terminal device does not send one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit.

[0158] In a possible implementation manner of the fourth aspect, the first configuration information further includes seventh indication information, the seventh indication information being used to indicate that the terminal device does not send the n sounding reference signals when carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0159] In a possible implementation manner of the fourth aspect, the first configuration information further includes eighth indication information, the eighth indication information being used to indicate that the terminal device does not send one or more of the n sounding reference signals when carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

[0160] In a possible implementation manner of the fourth aspect,

[0161] The transceiver is further configured to send second information, the second information including at least one of the following:

[0162] The ninth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or

[0163] The tenth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted;

[0164] Eleventh indication information, the eleventh indication information is used for indicating that one or more of the n sounding reference signals corresponding to the carrier transmits a first signal, the first signal includes 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).

[0165] In a possible implementation of the fourth aspect,

[0166] The positioning carrier is not used for transmitting the PDCCH signal, the PDSCH signal, the PUSCH signal and the PUCCH signal.

[0167] In a possible implementation of the fourth aspect,

[0168] The positioning carrier is only used for transmitting the sounding reference signal;

[0169] Or,

[0170] The positioning carrier is only used for transmitting the sounding reference signal and the physical random access channel (PRACH) signal.

[0171] In a possible implementation of the fourth aspect,

[0172] The n carriers corresponding to the n sounding reference signals are located in the same frequency band (band).

[0173] In a possible implementation of the fourth aspect, the n sounding reference signals share the antenna port or the n sounding reference signals have a phase difference.

[0174] In the fourth aspect of the embodiments of the present application, the component modules of the communication device can also be used to perform the steps performed in each possible implementation of the second aspect and achieve the corresponding technical effects. For details, see the second aspect, which will not be repeated here.

[0175] The fifth aspect of the embodiments of the present application provides a communication device, comprising at least one processor coupled with a memory;

[0176] The memory is used to store programs or instructions;

[0177] The at least one processor is used to execute the programs or instructions, so that the device realizes the method described in the foregoing first aspect or any one of the possible implementation manners of the first aspect.

[0178] The sixth aspect of the embodiments of the present application provides a communication device, comprising at least one processor coupled with a memory;

[0179] The memory is used to store programs or instructions;

[0180] The at least one processor is configured to execute the program or the instruction to enable the apparatus to implement the method of the preceding second aspect or any possible implementation manner of the second aspect.

[0181] The seventh aspect of the embodiments of the present application provides a communication apparatus, including at least one logic circuit and an input and output interface;

[0182] The input and output interface is configured to input the first configuration information;

[0183] The logic circuit is configured to execute the method of the preceding first aspect or any possible implementation manner of the first aspect.

[0184] The eighth aspect of the embodiments of the present application provides a communication apparatus, including at least one logic circuit and an input and output interface;

[0185] The input and output interface is configured to output the first configuration information;

[0186] The logic circuit is configured to execute the method of the preceding second aspect or any possible implementation manner of the second aspect.

[0187] The ninth aspect of the embodiments of the present application provides a communication apparatus, including a radio frequency module and a baseband processing module;

[0188] The radio frequency module supports a carrier corresponding to a transceived signal including k+p frequency domain resource units, k and p are both integers greater than or equal to 1;

[0189] On the carrier of the k frequency domain resource units, the baseband processing module supports processing of a target signal and processing of a first signal, wherein the first signal includes a PDCCH signal, a PDSCH signal, a PUSCH signal and a PUCCH signal;

[0190] On the carrier of the p frequency domain resource units, the baseband processing module supports processing of the target signal, and the baseband processing module does not support processing of at least one of the PDCCH signal, the PDSCH signal, the PUSCH signal and the PUCCH signal;

[0191] Wherein, the n sounding reference signals correspond to a subset of the carrier of the k+p frequency domain resource units; the apparatus is configured to execute the method of the preceding first aspect or any possible implementation manner of the first aspect, or the apparatus is configured to execute the method of the preceding second aspect or any possible implementation manner of the second aspect.

[0192] Based on the above technical solution, in the communication device, the carrier corresponding to the transceiving signal supported by the radio frequency module includes a carrier of k+p frequency domain resource units, 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 on the carrier of the p frequency domain resource units, that is, the capability of the radio frequency module of the communication device is redundant. In other words, the communication device supports full communication capability on the carrier of the k frequency domain resource units, and only supports simple transceiving of target signals on the carrier of the p frequency domain resource units, that is, the communication device can be equipped with simple baseband signal processing capability on the carrier of the p frequency domain resource units, so as to simplify or save the baseband processing capability of the communication device, and realize low-cost CA positioning.

[0193] Optionally, the frequency domain resource unit can be 10 megahertz (MHz), 50 MHz, 100 MHz, 500 MHz, or other frequency domain resource units, which are not limited here.

[0194] In a possible implementation manner of the ninth aspect, the baseband processing module does not support processing of the PDCCH signal, the PDSCH signal, the PUSCH signal and the PUCCH signal on the carrier of the p frequency domain resource units.

[0195] In a possible implementation manner of the ninth aspect, the target signal only includes a sounding reference signal.

[0196] In a possible implementation manner of the ninth aspect, the target signal only includes a sounding reference signal and a PRACH signal.

[0197] It should be understood that in the present application, the sounding reference signal can also be described as a signal for positioning. The name of the signal for positioning in the current communication system can be a sounding reference signal (SRS), and the name of the SRS in the future communication system can change with the evolution of the communication system.

[0198] In a possible implementation manner of the ninth aspect, the communication device is a terminal device, or the device can be a component (such as a processor, a chip or a chip system, etc.) in the terminal device, or the device can also be a logic module or software that can realize all or part of the functions of the terminal device.

[0199] Optionally, in the case where the communication device is a terminal device, the "k+p frequency domain resource units" can have different definitions for different terminal devices.

[0200] For example, for the terminal device A, the carrier (denoted as a normal cell) of the "k frequency domain resource units" that the baseband processing module of the terminal device A supports for processing of the target signal and processing of the first signal can be frequency band 1, the terminal device A supports processing of the target signal, and the carrier (denoted as an "SRS-only" cell) of the "p frequency domain resource units" that the baseband processing module does not support for processing of at least one of the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal can correspond to frequency band 2; and for the terminal device B, the normal cell that the baseband processing module of the terminal device B supports can be frequency band 2, and the "SRS-only" cell that the baseband processing module of the terminal device B supports can correspond to frequency band 3. In this example, frequency band 2 is an "SRS-only" cell for the terminal device A, and frequency band 2 is a normal cell for the terminal device B.

[0201] In a possible implementation form of the ninth aspect, the communication apparatus is a network device, or the apparatus can be a component (for example, a processor, a chip, or a chip system, etc.) in the network device, or the apparatus can also be a logic module or software that can implement all or part of the functions of the network device.

[0202] The tenth aspect of the embodiments of the present application provides a computer readable storage medium for storing one or more computer execution instructions, when the computer execution instructions are executed by a processor, the processor executes the method in the first aspect or any possible implementation form of the first aspect, or the processor executes the method in the second aspect or any possible implementation form of the second aspect.

[0203] The eleventh aspect of the embodiments of the present application provides a computer program product (or a computer program), when the computer program product is executed by the processor, the processor executes the method in the first aspect or any possible implementation form of the first aspect, or the processor executes the method in the second aspect or any possible implementation form of the second aspect.

[0204] The twelfth aspect of the embodiments of the present application provides a chip system, which includes at least one processor for supporting the communication apparatus to implement the functions involved in the first aspect or any possible implementation form of the first aspect, or for supporting the communication apparatus to implement the functions involved in the second aspect or any possible implementation form of the second aspect.

[0205] In one possible design, the chip system may further include a memory for storing program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices. Optionally, the chip system may also include interface circuitry that provides program instructions and / or data to the at least one processor.

[0206] The thirteenth aspect of this application provides a communication system, which includes the communication devices of the third and fourth aspects described above, and / or the communication system includes the communication devices of the fifth and sixth aspects described above, and / or the communication system includes the communication devices of the seventh and eighth aspects described above, and / or the communication system includes the communication devices of the ninth aspect described above.

[0207] The technical effects of any of the design methods in aspects three through thirteen can be found in the technical effects of the different implementation methods in aspects one through two above, and will not be repeated here.

[0208] It should be understood that, for components in a device, the "sending" mentioned above can be called "output," and "receiving" can be called "input."

[0209] As can be seen from the above technical solutions, the embodiments of this application include the following beneficial effects: By using a positioning carrier to carry at least one detection reference signal, the situation where the carrier bandwidth is reduced or even the carrier is preempted due to the positioning reference signal being carried on the same carrier as other signals (such as data, control signaling, etc.) can be avoided, thereby improving the positioning accuracy of the terminal device. Furthermore, the signal received by the receiver of the n detection reference signals is the signal obtained by carrier aggregation of the n detection reference signals on the corresponding n carriers. Utilizing the bandwidth aggregation characteristics of different carriers, the receiver of the n detection reference signals can obtain more accurate positioning measurement results based on the carrier aggregation (CA) positioning method. Attached Figure Description

[0210] Figure 1 A schematic diagram of the network architecture provided in this application;

[0211] Figure 2a Another schematic diagram of the network architecture provided in this application;

[0212] Figure 2b Another schematic diagram of the network architecture provided in this application;

[0213] Figure 2c Another schematic diagram of the network architecture provided in this application;

[0214] Figure 3a Another schematic diagram of a network architecture provided in the present application;

[0215] Figure 3b Another schematic diagram of a network architecture provided in the present application;

[0216] Figure 4 Another schematic diagram of a network architecture provided in the present application;

[0217] Figure 5 Another schematic diagram of a network architecture provided in the present application;

[0218] Figure 6 Another schematic diagram of a network architecture provided in the present application;

[0219] Figure 7 Another schematic diagram of a network architecture provided in the present application;

[0220] Figure 8a Another schematic diagram of a network architecture provided in the present application;

[0221] Figure 8b Another schematic diagram of a network architecture provided in the present application;

[0222] Figure 9 Another schematic diagram of a network architecture provided in the present application;

[0223] Figure 10 Another schematic diagram of a network architecture provided in the present application;

[0224] Figure 11 Another schematic diagram of a network architecture provided in the present application. DETAILED DESCRIPTION

[0225] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0226] First, some terms in the embodiments of the present application are explained and described so as to facilitate understanding by those of ordinary skill in the art.

[0227] (1) Terminal device: can be a wireless terminal device capable of receiving network device scheduling and indication information, and the wireless terminal device can be a device providing voice and / or data connectivity to a user, or a handheld device with wireless connection function, or other processing devices connected to a wireless modem.

[0228] A terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN), and the terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone, mobile phone), a computer, and a data card, for example, which can be a portable, pocket, hand-held, computer-embedded, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, 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 Pad, a computer with wireless transceiver function, and the like. The wireless terminal device can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), a customer premises equipment (CPE), a terminal, a user equipment (UE), a mobile terminal (MT), and the like. The terminal device can also be a wearable device and a terminal device in a next-generation communication system, such as a terminal device in a 5G communication system or a terminal device in a future evolved public land mobile network (PLMN), and the like.

[0229] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0230] The various terminals described above, if located in a vehicle, such as placed inside or installed inside a vehicle, can be considered as vehicle-mounted terminals, also known as on-board units (OBUs).

[0231] In this application embodiment, the device for implementing the terminal's functions can be the terminal itself, or it can be a circuit capable of supporting the terminal in implementing those functions, such as a circuit that can be applied to a chip system, which can be installed in the terminal. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the device for implementing the terminal's functions is a terminal, as an example, to describe the technical solutions provided in this application embodiment.

[0232] (2) Network equipment: may include location management function (LMF) network elements. LMF network elements are used to implement functions such as positioning. An LMF network element is a device or component deployed in the core network to provide positioning functionality for terminal devices, and can be used to determine the location of the terminal devices. In this application, the LMF network element can be replaced by other devices or components that provide positioning functionality for terminal devices, such as a positioning server, positioning management server, positioning management function server, LMF device, LMF entity, LMF network entity, network function, etc. In future positioning networks, such as 6th generation (6G) mobile communication systems, the LMF network element may still be an LMF network element, or may have other names; this application does not limit this.

[0233] Optionally, the network device can further include other core network devices, such as an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), and the like.

[0234] Optionally, the network device can also be a device in a wireless network, for example, the network device can be a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network, which can also be referred to as a base station. Currently, some examples of RAN devices are: a new generation Node B (gNodeB) in a 5G communication system, a transmission reception point (TRP), an evolved NodeB (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., a home evolved Node B, or a home Node B, HNB), a base band unit (BBU), or a wireless fidelity (Wi-Fi) access point (AP), and the like. In addition, in one network structure, the network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

[0235] In the above, the network device can send configuration information (e.g., carried in a scheduling message and / or an indication message) to the terminal device, and the terminal device further performs network configuration according to the configuration information, so that the network configuration between the network device and the terminal device is aligned; or, through the preset network configuration of the network device and the preset network configuration of the terminal device, the network configuration between the network device and the terminal device is aligned. Specifically, "alignment" means that when there is an interactive message between the network device and the terminal device, the two are consistent in understanding the carrier frequency of the interactive message transmission and reception, the determination of the interactive message type, the meaning of the field information carried in the interactive message, or other configurations of the interactive message.

[0236] In addition, in other possible cases, the network device can be other apparatuses that provide wireless communication functions for the terminal device. Embodiments of the present application do not limit the specific technology and specific device form of the network device. For the convenience of description, embodiments of the present application do not make limitations.

[0237] In embodiments of the present application, the apparatus for implementing the function of the network device can be the network device, or an apparatus capable of supporting the network device to implement the function, such as a chip system, which can be installed in the network device. In the technical solutions provided in embodiments of the present application, the apparatus for implementing the function of the network device is taken as an example to describe the technical solutions provided in embodiments of the present application.

[0238] (3) The terms "system" and "network" in embodiments of the present application can be used interchangeably. "At least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, "at least one of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. In addition, unless otherwise specified, the ordinal numbers "first", "second", and the like mentioned in embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, time sequence, priority, or importance of the multiple objects.

[0239] The present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or other communication systems, wherein the communication system includes a network device and a terminal device, the network device serves as a configuration information sending entity, and the terminal device serves as a configuration information receiving entity. Specifically, in the communication system, one entity sends configuration information to another entity, and sends data to another entity or receives data sent by another entity; another entity receives configuration information and sends data to the configuration information sending entity according to the configuration information or receives data sent by the configuration information sending entity. The present application can be applied to a terminal device in a connected state or an active state (ACTIVE), and can also be applied to a terminal device entering an inactive state (INACTIVE) or an idle state (IDLE).

[0240] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined according to their inherent logical relationships to form new embodiments, implementation methods, methods, or implementation approaches. The embodiments described below do not constitute a limitation on the scope of protection of this application.

[0241] To facilitate understanding of the methods provided in the embodiments of this application, the system architecture of the methods provided in the embodiments of this application will be described below. It is understood that the system architecture described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application and does not constitute a limitation on the technical solutions provided in the embodiments of this application.

[0242] Figure 1 This is a schematic diagram of a communication system according to an embodiment of this 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 via a wireless link. The access network device 201 and the core network device 202 can also communicate with each other.

[0243] As an example of implementation, the communication system between the terminal device and the access network device can be achieved through... Figure 2a Implemented as shown. Please refer to [link / reference]. Figure 2a The communication system includes a terminal device 101, and the access network equipment may include a next-generation node B (gNB) 102, a next-generation evolved node B (ng-eNB) 103, or other access network equipment as shown in the figure. The terminal device 101 communicates with the access network equipment (such as...) via a Uu interface. Figure 1 It communicates with either gNB102 or ng-eNB103 in the NR communication system. ng-eNB103 is the access network device in the Long Term Evolution (LTE) communication system, and gNB102 is the access network device in the NR communication system.

[0244] As an implementation example, the communication system between access network devices and core network devices can be achieved through... Figure 2b Implemented as shown. Please refer to [link / reference]. Figure 2bThe communication system includes an access network device and a core network device. For example, the access network device can include a gNB 102 and an ng-eNB 103 as shown in the figure, and the core network device can include an access and mobility management function (AMF) 104 and a location management function (LMF) 105 as shown in the figure. The LMF 105 is a network element, module or component in the NR core network that provides positioning functions for terminal devices.

[0245] For example, in the communication system, the access network devices can communicate with each other through an Xn interface, and the access network devices and the AMF 104 can communicate with each other through an NG-C interface. The AMF 104 and the LMF 105 can communicate with each other through an NL1 interface, and the AMF 104 serves as a router for communication between the access network devices and the LMF 105. The LMF 105 is used for positioning calculation of the location of the terminal device.

[0246] The above Figure 2a Only an example of a communication system including two access network devices, gNB and ng-eNB, is shown. In actual applications, the communication system can include at least one access network device, which is not limited in the present application.

[0247] In the present application, the above Figure 2b In the communication system shown in the figure, the LMF is the name of the current communication system, and in the future communication system, the name of the LMF may change with the evolution of the communication system. In the current communication system or the future communication system, as long as other functional network elements with similar functions to the LMF have similar functions, the LMF in the present application can be understood and applied to the communication method provided in the present application.

[0248] The above Figure 1 , Figure 2a and Figure 2bIn the illustrated communication system, an access network and terminal assisted architecture based on core network location management function (LMF) control can be used to implement the positioning procedure of the terminal device. Generally, the downlink positioning method is mainly based on the observed time difference of arrival (OTDOA). The time difference of arrival (TDOA) of the downlink reference signal of multiple cells measured by the terminal device and the arrival time of the downlink signal of the reference cell base station to the terminal device is used to determine the position of the terminal device. For example, NR defines other downlink positioning technologies such as downlink positioning technology based on angle of departure (AoD). In this technology, the measurement information obtained by the terminal device measuring the downlink reference signal of multiple base stations is used to infer and calculate the AoD of each base station, and thus the position of the terminal device is determined based on the AoD of multiple base stations.

[0249] For example, the communication system composed of various devices in the above Figure 2a and Figure 2b may also be implemented in the manner shown in Figure 2c .

[0250] Optionally, in the above Figure 2c , the communication system further includes an evolved serving mobile location center (E-SMLC) 106 and a secure user plane location (SLP) 107. The E-SMLC 106 is a network element, module or component in the 4G core network that provides positioning functions. The SLP 107 is a network element, module or component in the 4G core network that is used to process the user plane security positioning protocol.

[0251] For example, the communication system to which the present application applies can also include a single or multiple network devices and a single or multiple terminal devices as shown in Figure 3a and Figure 3b .

[0252] Optionally, as shown in Figure 3a , a single network device can transmit data or control signaling to a single or multiple terminal devices.

[0253] Optionally, as shown in Figure 3b , multiple network devices can also transmit data or control signaling to a single terminal device at the same time.

[0254] For example, the current Rel-16 positioning standardizes SRS for positioning, which is different from the multiple-input multiple-output (MIMO) SRS in Rel-15, to support the following positioning techniques:

[0255] Uplink time difference of arrival (UL-TDOA) positioning technique: each cell measures uplink relative time of arrival (UL RTOA) of the SRS signal of the UE, and reports the measurement result to the LMF;

[0256] Uplink angle of arrival (UL-AoA) positioning technique: each cell measures UL AoA of the SRS signal of the UE, and reports the measurement result to the LMF;

[0257] Multi-cell round trip time (Multi-RTT) positioning technique: the UE measures the Rx-Tx time difference of the UE for each cell positioning reference signal (PRS), and reports the measurement result to the LMF; each cell measures the Rx-Tx time difference of the gNB for the SRS signal of the UE, and reports the measurement result to the LMF.

[0258] Generally, the configuration of the SRS includes the following levels, as shown in Figure 4

[0259] 1) serving cell / carrier, each serving cell (for example, cell carrier #0, cell carrier #1, and the like as shown in Figure 4 ) can include one uplink carrier or two uplink carriers. If there are two uplink carriers, one of the carriers 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.

[0260] 2) bandwidth part (BWP), which is a part of the bandwidth on the carrier (for example, BWP #0, BWP #1, and the like as shown in Figure 4 ​The BWP #0, BWP #1, BWP #2 contained in the cell carrier #0 and the BWP #0, BWP #1, BWP #2 contained in the cell carrier #1, etc. shown in the table correspond to a set of resource blocks (RB), a subcarrier spacing, and a cyclic prefix (CP) type. In Rel-15 and Rel-16, multiple BWPs can be configured on one cell carrier, but at most one BWP is activated at the same time. The terminal transmits data, uplink control, and SRS on the activated BWP. One or more SRS resource sets can be configured on one BWP.

[0261] 3) SRS resource set, containing one or more SRS resources, the SRS resources in one SRS resource set have the same periodicity and SRS power control parameters.

[0262] Optionally, different SRS resources in the same SRS resource set can correspond to different beams or different transmitting antennas / antenna sets.

[0263] 4) SRS resource, the minimum granularity for SRS configuration, one SRS resource corresponds to one SRS transmitting beam.

[0264] Since the maximum bandwidth of the NR low frequency (FR1) single carrier is 100MHz, and the SRS configuration bandwidth must also be based on the maximum bandwidth of the single carrier, the maximum bandwidth of the low frequency positioning available signal is 100MHz. Compared with cellular positioning, Ultra-wide bandwidth (UWB) can support 500MHz. Since the positioning accuracy is largely dependent on the signal bandwidth, the performance of cellular positioning is not competitive compared with UWB.

[0265] In addition, since the reference signal for positioning transmitted by the terminal device is generally carried on the same carrier as other signals (such as data, control signaling, etc.), the bandwidth of the carrier occupied by the reference signal for positioning becomes smaller or even is occupied. Therefore, how to improve the positioning accuracy is a technical problem to be solved.

[0266] To solve the above problems, the present application provides a communication method and a communication device, which will be further introduced below in combination with the drawings.

[0267] Please refer to Figure 5 A schematic diagram of a communication method provided by an embodiment of the present application is shown, and the method comprises the following steps.

[0268] It should be noted that Figure 5The terminal device and the network device are taken as an example to illustrate the execution subject of the interaction diagram, but the application is not limited to the execution subject of the interaction diagram. For example, Figure 5 The terminal device in the method can also be a chip, a chip system, or a processor supporting the terminal device to implement the method, and can also be a logic module or software capable of implementing all or part of the terminal device functions. Figure 5 The network device in the method can also be a chip, a chip system, or a processor supporting the network device to implement the method, and can also be a logic module or software capable of implementing all or part of the network device functions.

[0269] S501. The network device sends first configuration information.

[0270] In the embodiment, the network device sends the first configuration information in step S501, and correspondingly, the terminal device receives the first configuration information in step S501. The first configuration information is used to configure n sounding reference signals, wherein at least one sounding reference signal in the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1.

[0271] It should be understood that in the present application, the first configuration information is used to configure n sounding reference signals, which can also be described as the first configuration information being used to configure n signals for positioning. The signal for positioning can be a sounding reference signal (SRS) in the current communication system, and the name of the SRS can change with the evolution of the communication system in the future communication system.

[0272] It should be noted that before step S501, the network device can determine that the first configuration information needs to be sent to the terminal device in various ways. For example, after the network device receives a positioning information request (POSITIONING INFORMATION REQUEST) message (which can include SRS configuration and / or SRS bandwidth information) from a positioning server before step S501, the network device performs step S501 based on the message; for another example, when the network device determines that the positioning information of the terminal device needs to be obtained before step S501, the network device performs step S501.

[0273] In addition, in the n carriers corresponding to the n sounding reference signals, the cell corresponding to the positioning carrier can be called a secondary cell (SCell); if there are other carriers in the n carriers in addition to the positioning carrier, the cell corresponding to the other carrier can be an SCell or a primary cell (PCell).

[0274] For example, n is 2, and the n carriers correspond to 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 no PDCCH / PDSCH and PUSCH / PUCCH are configured on cell A, but SRS is configured on cell A. Cell B can also be a positioning dedicated secondary cell (i.e., the carrier corresponding to cell B is a positioning carrier), or a common cell with uplink or downlink data (i.e., the carrier corresponding to cell B is not a positioning carrier), i.e., a cell with PUCCH / PUSCH or PDCCH / PDSCH configured, which can be a secondary cell SCell or a primary cell PCell, which is not limited here.

[0275] In a possible implementation, the positioning carrier is not used to transmit PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals.

[0276] In a possible implementation, the positioning carrier is only used to transmit the SRS; or the positioning carrier is only used to transmit the SRS and PRACH signals.

[0277] Based on the above technical solution, at least one of the n SRSs configured by the first configuration information corresponds to a positioning carrier, and the positioning carrier is not used to transmit PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals, i.e., the positioning carrier does not need to adapt the transceiving of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals. Therefore, for the terminal device, the terminal device only needs to support the transceiving of the signal of the positioning carrier (the signal includes the SRS, or the signal includes the SRS and the PRACH signal) of the radio frequency module, and the baseband processing module of the terminal device can be equipped with simple baseband signal processing capability on this carrier without the need to configure the processing capability of PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals and other complex signals, so as to simplify or save the baseband processing capability of the terminal device, and realize low-cost carrier aggregation (CA) positioning.

[0278] Similarly, for the network device, the network device only needs to support the transceiving of the signal of the positioning carrier (the signal includes the SRS, or the signal includes the SRS and the PRACH signal), and the network device can be equipped with a simple baseband signal processing capability on the carrier without configuring the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal and other complex signal processing capabilities, so as to simplify or save the baseband processing capability of the network device, and realize low-cost CA positioning.

[0279] As an implementation example, in order to adapt to the implementation of the above positioning carrier, the application also provides a communication device, which comprises a radio frequency module and a baseband processing module; wherein the carrier corresponding to the transceived signal supported by the radio frequency module includes a carrier of k+p frequency domain resource units, k and p are both integers greater than or equal to 1, and the baseband processing module satisfies:

[0280] On the carrier of the k frequency domain resource units, the baseband processing module supports the processing of the target signal and the processing of the first signal, wherein the first signal includes the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal;

[0281] On the carrier of the p frequency domain resource units, the baseband processing module supports the processing of the target signal, and the baseband processing module does not support the processing of at least one of the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal;

[0282] Wherein, the carrier corresponding to the n SRS is a subset of the carrier of k+p frequency domain resource units.

[0283] Based on the above technical solution, in the communication device, the carrier corresponding to the transceived signal supported by the radio frequency module includes a carrier of k+p frequency domain resource units, and on the carrier of the p frequency domain resource units, the baseband processing module does not support the processing of at least one of the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal, that is, the capability of the radio frequency module of the communication device is redundant. In other words, on the carrier of the k frequency domain resource units, the communication device supports full communication capability, and on the carrier of the p frequency domain resource units, the communication device only supports simple transceiving of the target signal, that is, the communication device can be equipped with a simple baseband signal processing capability on the carrier of the p frequency domain resource units, so as to simplify or save the baseband processing capability of the communication device, and realize low-cost CA positioning.

[0284] Optionally, the baseband processing module supports processing of the target signal on the carrier of the p frequency domain resource units, and the baseband processing module does not support processing of the PDCCH signal, the PDSCH signal, the PUSCH signal and the PUCCH signal.

[0285] It should be understood that the communication device can be a terminal device, or the device can be a component (such as a processor, a chip or a chip system, etc.) in the terminal device, or the device can also be a logic module or software capable of realizing all or part of the functions of the terminal device. And / or, the communication device can also be a network device, or the device can also be a component (such as a processor, a chip or a chip system, etc.) in the network device, or the device can also be a logic module or software capable of realizing all or part of the functions of the network device.

[0286] Optionally, the frequency domain resource unit can be 10 megahertz (MHz), 50 MHz, 100 MHz, 500 MHz, or other frequency domain resource units, which are not limited here.

[0287] For example, the frequency domain resource unit is 100 MHz, the values of k and p are both 1, and the n78 band (i.e., the radio frequency module of the communication device supports a frequency spectrum of 3.3 GHz-3.8 GHz on the n78 band) is taken as an example, and the description is made in combination with Figure 6 and Figure 7 Examples.

[0288] As Figure 6 shown in the implementation example of the terminal device, the following modules are included. A digital-to-analog converter (DAC) is used for digital-to-analog conversion; a low-pass filter is used for smoothing the signal output by the digital-to-analog conversion and suppressing out-of-band leakage; a mixer can multiply the baseband signal with the local oscillator signal, which is used for up-converting the baseband signal to the radio frequency; thereafter, the processing of the local oscillator signal can output two paths of cosine and sine, which are used to support I / Q two-way modulation. Then, a radio frequency combining (Sigma) is included, which includes I / Q two-way same frequency combining and combining on two frequency points; a radio frequency band-pass filter mainly eliminates the mirror frequency interference power after the mixing; a power amplifier is used for amplifying the signal. Thereafter, an antenna, such as a radio frequency feeder, etc., is also included.

[0289] As Figure 7Implementation example of the network device shown, including the following modules. SRS functionality BB is a baseband unit for processing SRS only, and full functionality BB is a baseband unit for processing all communication signals and channels. Using SRS functionality BB can reduce the cost of base stations and terminals supporting CA positioning, while achieving the accuracy of large bandwidth positioning. It should be understood that the cost and power consumption of SRS functionality BB is smaller (advantageous) than that of full functionality BB. In addition, the network device also includes radio / RF capability, indicating that the radio frequency capability of the network device and the terminal has the capability to send SRS functionality BB and full functionality BB through a channel.

[0290] Optionally, Figure 7 The rightmost side corresponds to the concept under the standard framework. In fact, the standard may only introduce SRS-only SCell or positioning carrier (or positioning cell or other name), and the processing unit of the SRS of the positioning carrier (or positioning cell or other name) is completed by the baseband SRS functionality BB.

[0291] For example, it is assumed that Figure 6The bandwidth supported by the radio frequency device of the terminal device shown is 200MHz, meaning that the rate of the digital-to-analog converter (DAC) of the terminal device, the radio frequency (RF) filter bandwidth of the terminal device is adapted to 200MHz, but the baseband processing capability of the terminal device is only enough to process 100MHz data. At this time, the terminal device can support 100MHz full communication capability, including SSB+CSI-RS+PDCCH / PDSCH+PUCCH / PUSCH+SRS reception or transmission, for example, this 100MHz communication capability can correspond to one carrier (3.4GHz-3.5GHz) of n78. In addition, the terminal device radio frequency has redundancy, and actually can emit 200MHz radio frequency signal, but the baseband of the terminal device cannot support 200MHz data transceiving, meaning that if there is another carrier in the frequency of 3.5G-3.6GHz, the terminal cannot support data transceiving on this carrier, so this carrier becomes a positioning carrier, and the terminal can be equipped with simple baseband signal processing capability on this carrier, for example, SRS transmission, but this carrier cannot support PCCCH / PDSCH and PUCCH / PUSCH complex channel processing. Since the two CCs of the co-band deployment are generally collocated, at this time the terminal can use the synchronization and timing of the 3.4GHz-3.5GHz cell on the positioning carrier.

[0292] It should be understood that such an architecture can be implemented on Figure 7 The network device side shown can also be implemented. For example, the network device configures two 100MHz carriers, one of which supports full communication capability, but the other carrier only supports simple SRS reception. In this way, the baseband processing complexity of the second carrier can be reduced. Since the two CCs of the co-band deployment are generally collocated, the base station also does not need to configure SSB and other synchronization signal transmission and PRACH reception for the second carrier.

[0293] In a possible implementation, the n carriers corresponding to the n sounding reference signals are located in the same band. Specifically, since the different carriers located in the same band are generally collocated, it can be considered that the uplink and downlink timings of the different carriers located in the same band are synchronized, so that the n sounding reference signals transmitted by the terminal device can share the same synchronization information to save overhead.

[0294] Optionally, when n is greater than or equal to 3, at least two of the n carriers corresponding to the n sounding reference signals are located in the same band.

[0295] In a possible implementation, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0296] Based on the above technical solution, in the case that the terminal device transmits n sounding reference signals, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference, so that the receiving end of the n sounding reference signals can utilize the bandwidth aggregation characteristics of different carriers to obtain more accurate positioning measurement results based on a carrier aggregation (CA) positioning mode.

[0297] It should be understood that, in the present application, the n sounding reference signals share an antenna port means that the channel states of the n sounding reference signals can be inferred from each other. The definition of an antenna port in the protocol is as follows (TS 38.211): 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.

[0298] It should be noted that the above method can also be expressed as: the channel conveyed by a symbol of one antenna port (through one reference signal or one physical layer channel) can be inferred from the channel conveyed by the symbol of the same antenna port (through one reference signal or one physical layer channel), that is, if the channel conveyed by two symbols can be inferred from each other, then the two symbols correspond to the same antenna port. Two reference signals corresponding to the same antenna port means that the symbols mapped by the two reference signals correspond to the same antenna port.

[0299] Optionally, two signals co-antenna port (corresponding to the same antenna port) is the most stringent requirement for two signals in the protocol, which usually requires that the same physical antenna or the same physical antenna set is used to transmit the two signals with the same precoding, and there is no radio frequency phase jump in the process, that is, the channels of the two signals are completely the same. At the same time, the protocol allows a certain degree of relaxation for the "channels of the two signals being completely the same", for example, the channel phase change caused by the Doppler frequency offset in different symbols when the terminal moves at high speed or there is a small residual deviation in the transmission and reception frequency. It can also be considered as a co-port, and the residual Doppler frequency needs to be estimated based on the assumption of the co-port, and the channel can be considered completely the same after elimination.

[0300] Optionally, the n probe signals have a phase difference, which means a less stringent relationship than the co-port requirement. The protocol does not define such a concept at present. Taking n=2 as an example, two signals with a "phase difference" specifically means that the channels can be mutually inferred in addition to a certain fixed random phase difference between the two signals. Specifically, it corresponds to the same physical antenna or the same physical antenna set corresponding to the same precoding being used to transmit the two signals, and there can be a radio frequency phase jump between the two signals in the process, that is, the channels of the two signals are completely the same except for the random radio frequency phase. The main reason for such radio frequency phase jump is that two independent local oscillators are used for up-conversion or down-conversion, and the two independent local oscillators do not have consistent or stable initial phase, thereby causing a phase difference between the two signals. When there is a Doppler, similar relaxation is also allowed.

[0301] It should be noted that the phase difference and the Doppler are intuitively phase changes, but they are different. When describing the Doppler, it is mainly used to describe the phase change of the two signals at the same frequency point (such as the same CC / BWP) over time, and when describing the phase difference, it is mainly used to describe the phase change of the two signals at different frequency points (such as different CC / BWPs) that does not change linearly over time.

[0302] In a possible implementation, before the terminal device receives the first configuration information in step S501, the method further includes: the terminal device sends first information used to indicate the capability information of the terminal device. Specifically, the terminal device can also send first information used to indicate 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 take the first information as one of the determination bases of the first configuration information.

[0303] Optionally, the first information includes at least one of the following:

[0304] The first indication information is used for indicating a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used for transmitting m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or

[0305] The second indication information is used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or

[0306] The third indication information is used for 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; or

[0307] The fourth indication information is used for indicating a first switching time, the first switching time is used for switching 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 does not include a positioning carrier, and the second carrier set includes at least one positioning carrier; or

[0308] The fifth indication information is used for indicating that the terminal device does not transmit the m sounding reference signals when a carrier corresponding to one or more of the m sounding reference signals collides on the same time domain resource unit; or

[0309] The sixth indication information is used for indicating that the terminal device does not transmit one or more of the m sounding reference signals when a carrier corresponding to the one or more of the m sounding reference signals collides on the same time domain resource unit.

[0310] Based on the above technical solutions, the first information used for indicating the capability information of the terminal device can include the above at least one, so as to facilitate the network device to determine that the terminal device has the capability of supporting the transmission of the sounding reference signal on the positioning carrier based on the first information, and to issue the first configuration information to the terminal device.

[0311] It should be noted that the purposes of the above first indication information, second indication information and third indication information are to indicate that the terminal device supports the positioning carrier.

[0312] As an implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) can be carried in a FeatureSetUplink information element. For example, before step S501, the terminal device reports the aggregated SRS bandwidth by using the FeatureSetUplink information element on a band supporting UL data, where the FeatureSetUplink is used to indicate the capability of the terminal device on each band supporting uplink data in a certain CA band combination, and can also be used to carry the SRS resource capability supported by the terminal device.

[0313] It can be understood that in this example, the bandwidth is greater than the bandwidth corresponding to the ca-BandwidthClassUL-NR corresponding to the target band in the CA band combination reported by the terminal device, for example, the terminal device can report ca-BandwidthClassUL-NR as A on a certain band n78 in a certain band combination, corresponding to a single CC, and the maximum is the maximum channel bandwidth on the band, for example, 100 MHz on n78, but the terminal device reports the SRS bandwidth as 200 MHz.

[0314] As another implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) can be carried in a FeatureSetDownlink information element. For example, before step S501, the terminal device reports the aggregated SRS bandwidth by using the FeatureSetDownlink information element on a band not supporting UL data, and since the terminal device does not support uplink data, the terminal does not report the FeatureSetUplink on the band, but the terminal device supports downlink data, so the SRS bandwidth can be reported by using the FeatureSetDownlink. Where the FeatureSetDownlink is used to indicate the capability of the terminal device on each band supporting downlink data in a certain CA band combination, and when the FeatureSetUplink is not reported, it can also be used to carry the SRS resource capability supported by the terminal.

[0315] It can be understood that in this example, the bandwidth is greater than the bandwidth corresponding to the ca-BandwidthClassUL-NR corresponding to the target band in the CA band combination reported by the terminal, for example, the terminal can report ca-BandwidthClassUL-NR as A on a certain band n78 in a certain band combination, corresponding to a single CC, and the maximum is the maximum channel bandwidth on the band, for example, 100 MHz on n78, but the terminal reports the SRS bandwidth as 200 MHz.

[0316] As another implementation example of the first indication information (or the second indication information), the first indication information (or the second indication information) can be carried in a BandCombination information element or a BandParameters information element under the BandCombination. In other words, the terminal reports a specific bandwidth class (BandwidthClass) of the SRS, and the reporting information corresponds to one or more bands of the terminal CA band combination.

[0317] In addition, as another implementation example of the third indication information, the third indication information can be jointly indicated by a BandwidthClass information element and a FeatureSetDownlink information element, or the third indication information can be indicated by a FeatureSetUplink information element.

[0318] In addition, when the first information includes the fourth indication information, the fourth indication information is used to indicate time information of performing carrier switching on the positioning carrier by the terminal device. In other words, before step S501, the terminal device indicates the switching time when sending the SRS on the positioning carrier, which is mainly used to indicate the radio frequency switching delay of the terminal between the working and target band communication mode and the positioning mode. For example, the terminal n78 communication bandwidth is 100 MHz, but the CA bandwidth of the positioning SRS can support up to 200 MHz. When the terminal is in the communication mode (i.e., supporting the transceiving 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 according to 100 MHz; when the terminal is in the positioning mode (i.e., not supporting at least one of the transceiving and processing of signals such as PDCCH signals, PDSCH signals, PUSCH signals, and PUCCH signals), the radio frequency is centered at 200 MHz, and the radio frequency filter is set according to 200 MHz. The switching between the two modes includes the time required for the re-tuning of the radio frequency center and the re-configuration of the filter. During this period of time, the terminal will interrupt the uplink communication on the target band, and even the downlink communication.

[0319] S502. The terminal device sends n sounding reference signals.

[0320] In this embodiment, the terminal device sends n sounding reference signals in step S502, and correspondingly, the network device receives the n sounding reference signals in step S502.

[0321] It should be noted that, in the present application, the network device that transmits the first configuration information to the terminal device in step S501 can be the same network device as the network device that receives the n sounding reference signals in step S502, or can be different network devices, which is not limited here.

[0322] In a possible implementation, the terminal device transmits the n sounding reference signals based on the first configuration information in step S502 includes that, when the carrier corresponding to one or more of the n sounding reference signals does not conflict on the same time domain resource unit, the terminal device transmits the n sounding reference signals based on the first configuration information.

[0323] Specifically, after the terminal device receives the first configuration information in step S501, the terminal device can need to transmit the n sounding reference signals based on the first configuration information in step S502. In this process, the terminal device can transmit the n sounding reference signals based on the first configuration information when it is determined that the carrier corresponding to one or more of the n sounding reference signals does not conflict on the same time domain resource unit. In other words, the terminal device transmits the n sounding reference signals based on the first configuration information in the case that the n sounding reference signals do not conflict with other scheduled signals (of the terminal device or other terminal devices) on the corresponding time-frequency domain resources, so as to avoid affecting the transmission of the other scheduled signals, and also to avoid transmission failure of the n sounding reference signals.

[0324] 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 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 subsequently transmit at least one of the n sounding reference signals on the positioning carrier based on the first configuration information in step S502. In this way, by carrying the at least one sounding reference signal on the positioning carrier, the situation that the carrier bandwidth becomes smaller or even the carrier is preempted due to the sounding reference signal for positioning and other signals (such as data, control signaling, etc.) carried on the same carrier can be avoided, so as to improve the positioning accuracy of the terminal device. In addition, the signal received by the receiving end of the n sounding reference signals is a signal obtained by carrier aggregation of the n sounding reference signals on the corresponding n carriers, and the characteristics of bandwidth aggregation of different carriers are used, so that the receiving end of the n sounding reference signals can obtain more accurate positioning measurement results based on the positioning mode of carrier aggregation (CA).

[0325] In Figure 5In a possible implementation of the method, after the terminal device receives the first configuration information in step S501, the terminal device does not necessarily perform the process of sending the n sounding reference signals in step S502. When the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals are used to transmit other signals on the same time domain resource unit, in order to avoid conflicts, the terminal device can determine not to send the n sounding reference signals or only send part of the n sounding reference signals. The following will be described in combination with the examples shown in Figure 8a and Figure 8b

[0326] Please refer to Figure 8a Another schematic diagram of the communication method provided in the present application is shown, which includes the following steps.

[0327] A1. The network device sends first configuration information.

[0328] In the embodiment, the network device sends the first configuration information in step A1, and correspondingly, the terminal device receives the first configuration information in step A1. The first configuration information is used to configure n sounding reference signals, wherein the sounding reference signals are used for positioning, at least one of the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1.

[0329] It should be noted that the implementation process of step A1 can refer to the implementation process of the aforementioned step S501, and achieve the corresponding technical effects, which will not be described here.

[0330] A2. The terminal device determines not to send the n sounding reference signals.

[0331] Specifically, in step A2, when the carriers corresponding to one or more of the n sounding reference signals conflict on the same time domain resource unit, the terminal device determines not to send the n sounding reference signals.

[0332] Based on the above technical solution, after the terminal device receives the first configuration information in step A1, the terminal device can not need to send the n sounding reference signals. In this process, when the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals conflict on the same time domain resource unit, the terminal device determines not to send the n sounding reference signals. In other words, when the terminal device determines that the n sounding reference signals conflict with other scheduled signals (of the terminal device or other terminal devices) on the corresponding time-frequency domain resources, the terminal device sends the first signal without sending the n sounding reference signals, so as to avoid affecting the transmission of the other scheduled signals.

[0333] ​It should be noted that if the same time domain resource unit is a same time slot, a same subframe or a same frame, the same time domain resource unit can include multiple symbols, and in this case, the terminal device determining not to send the n sounding reference signals can also be expressed as: the terminal device determining not to send the n sounding reference signals on the symbols in conflict in the same time domain resource unit. In other words, the terminal device can send the n sounding reference signals on the symbols not in conflict in the same time domain resource unit.

[0334] For example, if the same time domain resource unit is 4 symbols in a time slot, and only one symbol is in conflict, the terminal device determining not to send the n sounding reference signals can also be expressed as: the terminal device determining not to send the n sounding reference signals on the symbol. In other words, the terminal device can send the n sounding reference signals on the other three symbols.

[0335] In a possible implementation, the first configuration information received by the terminal device in step A1 further includes seventh indication information, the seventh indication information being used to indicate that when the carrier corresponding to one or more of the n sounding reference signals is in conflict in the same time domain resource unit, the terminal device does not send the n sounding reference signals.

[0336] It should be understood that in this implementation, the seventh indication information can also be expressed as: the seventh indication information is used to indicate that when the carrier corresponding to one or more of the n sounding reference signals is in conflict in the same time domain resource unit, the same time domain resource unit is not used to carry the n sounding reference signals.

[0337] Specifically, the first configuration information received by the terminal device can further include seventh indication information, and the seventh indication information is used to indicate that when the carrier corresponding to one or more of the n sounding reference signals is in conflict in the same time domain resource unit, the terminal device does not send all of the n sounding reference signals. So that after receiving the first configuration information, the terminal device determines based on the seventh indication information that in the case that the n sounding reference signals are in conflict with other scheduled signals (of the terminal device or other terminal devices) on the corresponding time-frequency domain resources, the n sounding reference signals do not need to be sent.

[0338] It should be noted that the process of step A2 performed by the terminal device can be triggered based on the capability of the terminal device itself, that is, the terminal device performs step A2 when the first information reported by the terminal device to the network device before step A1 contains the fifth indication information indicating the capability information of the terminal device. Alternatively, the process of step A2 performed by the terminal device can be triggered based on the configuration of the network device, that is, the terminal device performs step A2 when the first configuration information further includes the seventh indication information.

[0339] Optionally, in the technical solution shown in Figure 8a In the technical solution shown, the terminal does not send the n sounding reference signals even if a collision occurs on one or more carriers corresponding to the sounding reference signals (rather than on all n carriers corresponding to the n sounding reference signals). The reason is that even if part of the n sounding reference signals are sent, the complete effectiveness of sending all n sounding reference signals is lost, that is, high-precision positioning is obtained by using the CA aggregated bandwidth. At the same time, due to the limitation of the terminal radio frequency device, on the one hand, the same symbol cannot necessarily be simultaneously used for uplink and downlink on different CCs of one band, and on the other hand, if PUSCH on one CC and SRS on another CC are contained in the same symbol, the power change at the symbol level may cause the SRS transmission quality to decrease, making it difficult to obtain good positioning measurement. In addition, the base station measuring the SRS is not necessarily the serving base station of the terminal, and cannot perceive that part of the SRS of the terminal is sent due to a collision. If the neighboring base station receives the SRS containing PUSCH / PUCCH and (n-1) SRS as complete n SRS, poor measurement results will be caused.

[0340] Please refer to Figure 8b Another schematic diagram of the communication method provided in the present application is shown, and the method includes the following steps.

[0341] B1. The network device sends first configuration information.

[0342] In the embodiment, the network device sends the first configuration information in step B1, and correspondingly, the terminal device receives the first configuration information in step B1. The first configuration information is used to configure n sounding reference signals, wherein the sounding reference signal is used for positioning, and the carrier corresponding to at least one of the n sounding reference signals is a positioning carrier, and n is an integer greater than 1.

[0343] It should be noted that the implementation process of step B1 can refer to the implementation process of the aforementioned step S501, and achieve the corresponding technical effects, which will not be described here.

[0344] B2. The terminal device determines not to send one or more sounding reference signals.

[0345] Specifically, in step B2, when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, the terminal device determines not to send the one or more sounding reference signals.

[0346] Based on the above technical solution, after the terminal device receives the first configuration information in step B1, the terminal device can not need to send the n sounding reference signals. In this process, when the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals collide, the terminal device determines not to send part of the n sounding reference signals, i.e., the terminal device determines not to send the one or more sounding reference signals. In other words, when the time-frequency domain resources corresponding to one or more of the n sounding reference signals collide with other scheduled signals (of the terminal device or other terminal devices), the terminal device sends other scheduled signals on the time-frequency domain resources corresponding to the one or more sounding reference signals (stops signal transmission or) without sending the n sounding reference signals, so as to avoid affecting the transmission of the first signal.

[0347] In a possible implementation, the first configuration information further includes eighth indication information, the eighth indication information being used to indicate that when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, the terminal device does not send the one or more sounding reference signals.

[0348] It should be understood that in this implementation, the eighth indication information can also be expressed as: the eighth indication information is used to indicate that when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, the same time domain resource unit is not used to carry the one or more sounding reference signals.

[0349] Based on the above technical solution, the first configuration information received by the terminal device can further include eighth indication information, and the eighth indication information is used to indicate that when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, the terminal device does not send the one or more sounding reference signals. After receiving the first configuration information, the terminal device determines, based on the eighth indication information, that the one or more sounding reference signals do not need to be sent when the one or more sounding reference signals collide with other scheduled signals (of the terminal device or other terminal devices) on corresponding time-frequency domain resources.

[0350] It should be noted that the process of step B2 performed by the terminal device can be triggered based on the capability of the terminal device itself, that is, the terminal device performs step B2 when the first information reported by the terminal device to the network device before step B1 contains the sixth indication information indicating the capability information of the terminal device. Alternatively, the process of step B2 performed by the terminal device can be triggered based on the configuration of the network device, that is, the terminal device performs step B2 when the first configuration information further includes the eighth indication information.

[0351] In a possible implementation, before step A2 (or step B2), the method further includes: receiving, by the terminal device, second information, the second information including at least one of:

[0352] ninth indication information, the ninth indication information being used to indicate that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or,

[0353] tenth indication information, the tenth indication information being used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted;

[0354] determining, by the terminal device, that the carrier corresponding to one or more of the n sounding reference signals occurs conflict on the same time domain resource unit based on the second information.

[0355] Specifically, the terminal device can further receive second information containing at least one of the above information, so that the terminal device determines whether to send the n sounding reference signals (or determines whether to send the one or more sounding reference signals) based on the at least one information that the carrier corresponding to one or more of the n sounding reference signals occurs conflict on the same time domain resource unit.

[0356] In a possible implementation, before step A2 (or step B2), the method further includes: receiving, by the terminal device, eleventh indication information, the eleventh indication information being used to indicate that one or more of the n sounding reference signals correspond to carriers transmitting a first signal, wherein 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); determining, by the terminal device, a first symbol set, the first symbol set being symbols occupied by the first signal or the first symbol set being a union set of symbols occupied by the first signal and switching symbols, the switching symbols being before or after the symbols occupied by the first signal, and the number of the switching symbols being determined by a first switching time; and when the first symbol set contains at least one symbol corresponding to the same time domain resource unit, determining, by the terminal device, that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0357] It should be noted that the first switching time is used for switching between the terminal device transmitting a signal on a first carrier set and transmitting a sounding reference signal on a second carrier set, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier.

[0358] Specifically, the terminal device can also receive eleventh indication information used to indicate that one or more of the n sounding reference signals correspond to carriers transmitting a first signal, and further determine a first symbol set based on the eleventh indication information, the first symbol set being symbols occupied by the first signal or the first symbol set being a union set of symbols occupied by the first signal and switching symbols. Moreover, when the terminal device determines that the first symbol set contains 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 the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, and determines whether to transmit the n sounding reference signals (or determines whether to transmit the one or more sounding reference signals).

[0359] It should be understood that the eleventh indication information can be semi-static configuration information (for example, radio resource control (RRC) configuration) or dynamic scheduling information (for example, downlink control information (DCI) scheduling), which is not limited here.

[0360] Optionally, in the method, Figure 8bIn the technical solution shown, the terminal retains the non-collision SRS sending, so that the network can make full use of the sent SRS to position the terminal under the premise of collision information, and although the positioning accuracy is not as good as that of the n SRSs all sent out, the accuracy corresponding to the sent SRS can still be obtained. From the terminal radio frequency perspective, the terminal also needs to have strong radio frequency capability to ensure that the sending quality of the non-collision SRS is not affected.

[0361] The above describes the present application from the method perspective, and the device involved in the present application will be introduced below.

[0362] Please refer to Figure 9 An implementation schematic diagram of a communication device is provided for the embodiment of the present application, and the communication device can execute the implementation process involved in the terminal device or the network device in any of the preceding embodiments.

[0363] As Figure 9 shown, the communication device 900 can at least include a transceiver unit 901; further optionally, the communication device 900 can also include a processing unit 902.

[0364] Optionally, the transceiver unit 901 can also be referred to as a transceiver module, a transceiver module, a transceiver, a signal transceiver, etc.

[0365] Optionally, the processing unit 902 can also be referred to as a processing module, a processor, a signal processor, a processing device, etc.

[0366] Optionally, the transceiver unit 901 can also include a sending unit 901a (or referred to as a sending module, a transmitting module, a transmitter, a signal transmitter, etc.) and a transceiver unit 901b (or referred to as a receiving module, a receiving module, a receiver, a signal receiver, etc.). The sending unit and the receiving unit can be integrated in the same entity / virtual modularization mode, or can be independently set as an entity / virtual modularization mode, which is not limited here.

[0367] Optionally, when the communication device 900 is a chip, the transceiver unit 901 can also be an input / output interface.

[0368] In an implementation mode, the communication device 900 is used to execute the communication method involved in the preceding terminal device, and the communication device 900 at least includes a sending unit 901a and a receiving unit 901b;

[0369] The receiving unit 901b is used to receive first configuration information, and the first configuration information is used to configure n sounding reference signals, wherein the sounding reference signal is used for positioning, at least one sounding reference signal in the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1;

[0370] The sending unit 901a is configured to send the n sounding reference signals based on the first configuration information, wherein the n sounding reference signals are carried on the same time domain resource unit.

[0371] In a possible implementation, the sending unit 901a is further configured to send first information, wherein the first information is used to indicate capability information of the terminal device.

[0372] In a possible implementation, the first information includes at least one of the following:

[0373] first indication information, used to indicate a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used to send m sounding reference signals for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or,

[0374] second indication information, used to indicate a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or,

[0375] third indication information, used to indicate 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; or,

[0376] fourth indication information, used to indicate a first switching time, wherein the first switching time is used for switching between sending signals on a first carrier set and sending sounding reference signals on a second carrier set by the terminal device, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier; or,

[0377] fifth indication information, used to indicate that the terminal device does not send the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; or,

[0378] sixth indication information, used to indicate that the terminal device does not send one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit.

[0379] In a possible implementation, the apparatus further includes a processing unit 902.

[0380] The sending unit 901a is specifically configured to send the n sounding reference signals based on the first configuration information when the processing unit 902 determines that the carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit, where the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

[0381] In a possible implementation manner,

[0382] The processing unit 902 is configured to determine not to send the n sounding reference signals when it is determined that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0383] In a possible implementation manner, the first configuration information further includes seventh indication information, where the seventh indication information is used to indicate that the terminal device does not send the n sounding reference signals when the carriers corresponding to any of the n sounding reference signals collide on the same time domain resource unit.

[0384] In a possible implementation manner,

[0385] The processing unit 902 is further configured to determine not to send one or more of the n sounding reference signals when it is determined that the carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

[0386] In a possible implementation manner, the first configuration information further includes eighth indication information, where the eighth indication information is used to indicate that the terminal device does not send the one or more of the n sounding reference signals when the carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

[0387] In a possible implementation manner,

[0388] The receiving unit 901b is further configured to receive second information, where the second information includes at least one of the following:

[0389] Ninth indication information, where the ninth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or

[0390] Tenth indication information, where the tenth indication information is used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted.

[0391] The processing unit 902 is further configured to determine that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit based on the second information.

[0392] In a possible implementation,

[0393] The receiving unit is further configured to receive eleventh indication information, where the eleventh indication information is used to indicate that a first signal is transmitted on the carriers corresponding to one or more of the n sounding reference signals, 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) signal.

[0394] The processing unit is further configured to determine a first symbol set, where the first symbol set is a symbol set occupied by the first signal, or the first symbol set is a union set of a symbol set occupied by the first signal and a switching symbol, the switching symbol is before the symbol set occupied by the first signal or after the symbol set occupied by the first signal, and a quantity of the switching symbol is determined by a first switching time.

[0395] When the processing unit determines that the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the processing unit determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

[0396] In a possible implementation,

[0397] The positioning carrier is not used to transmit the PDCCH signal, the PDSCH signal, the PUSCH signal, and the PUCCH signal.

[0398] In a possible implementation,

[0399] The positioning carrier is only used to transmit the sounding reference signal.

[0400] Or,

[0401] The positioning carrier is only used to transmit the sounding reference signal and a physical random access channel (PRACH) signal.

[0402] In a possible implementation,

[0403] The n carriers corresponding to the n sounding reference signals are located in a same frequency band.

[0404] In a possible implementation, the n sounding reference signals share an antenna port, or the n sounding reference signals have a phase difference.

[0405] In an implementation, the communication apparatus 900 is configured to perform the communication method as described above, and the communication apparatus 900 comprises a transceiver 901 and a processor 902.

[0406] The processor 902 is configured to determine first configuration information, the first configuration information being used for configuring n sounding reference signals, wherein the sounding reference signals are used for positioning, the n sounding reference signals are carried on a same time domain resource unit, at least one of the n sounding reference signals corresponds to a positioning carrier, and n is an integer greater than 1.

[0407] The transceiver 901 is configured to send the first configuration information.

[0408] In a possible implementation,

[0409] The transceiver 901 is further configured to send first information, the first information being used for indicating capability information of a terminal device.

[0410] The processor 902 is further configured to determine the first configuration information based on the first information.

[0411] In a possible implementation, the first information comprises at least one of the following:

[0412] First indication information is used for indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth is used for sending m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a positioning carrier, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or,

[0413] Second indication information is used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or,

[0414] Third indication information is used for indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA contains at least one positioning carrier; or,

[0415] Fourth indication information is used for indicating a first switching time, the first switching time is used for switching between sending signals on a first carrier set and sending sounding reference signals on a second carrier set by the terminal device, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one positioning carrier; or,

[0416] The fifth indication information is used for indicating that the terminal device does not send the m sounding reference signals when one or more sounding reference signals in the m sounding reference signals correspond to carriers that collide on the same time domain resource unit; or

[0417] The sixth indication information is used for indicating that the terminal device does not send one or more sounding reference signals in the m sounding reference signals when the one or more sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0418] In a possible implementation, the first configuration information further includes seventh indication information, the seventh indication information being used for indicating that the terminal device does not send the n sounding reference signals when one or more sounding reference signals in the n sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0419] In a possible implementation, the first configuration information further includes eighth indication information, the eighth indication information being used for indicating that the terminal device does not send one or more sounding reference signals in the n sounding reference signals when the one or more sounding reference signals correspond to carriers that collide on the same time domain resource unit.

[0420] In a possible implementation,

[0421] The transceiver 901 is further configured to send second information, the second information including at least one of the following:

[0422] The ninth indication information is used for indicating that at least one symbol corresponding to the same time domain resource unit is a flexible symbol; or

[0423] The tenth indication information is used for indicating that at least one symbol corresponding to the same time domain resource unit is preempted.

[0424] The eleventh indication information is used for indicating that a first signal is transmitted on a carrier corresponding to one or more sounding reference signals in 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).

[0425] In a possible implementation,

[0426] The positioning carrier is not used for transmitting a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH signal.

[0427] In a possible implementation,

[0428] The positioning carrier is only used for transmitting the sounding reference signal;

[0429] Or,

[0430] The positioning carrier is only used for transmitting the sounding reference signal and a physical random access channel (PRACH) signal.

[0431] In a possible implementation manner of the fourth aspect,

[0432] The n carriers corresponding to the n sounding reference signals are located in a same frequency band.

[0433] In a possible implementation manner of the fourth aspect, the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

[0434] It should be noted that the information execution process and the like of the units of the communication apparatus 900 are specifically referable to the descriptions in the method embodiments disclosed in the foregoing disclosure of the present application, and will not be described herein again.

[0435] Referring to Figure 10 The communication apparatus 1000 can be the terminal device as shown in any of the foregoing embodiments, or the communication apparatus 1000 can be part of the components (for example, a processor, a chip or a chip system, etc.) in the terminal device as shown in any of the foregoing embodiments.

[0436] In Figure 10 , a possible logical structure schematic diagram of the communication apparatus 1000 is shown. The communication apparatus 1000 can include but is not limited to at least one processor 1001 and a communication port 1002. Further optionally, the apparatus can further include a memory 1003 and a bus 1004. In the embodiments of the present application, the at least one processor 1001 is configured to control and process the actions of the communication apparatus 1000.

[0437] In addition, the processor 1001 can be a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It can implement or execute the various exemplary logical blocks, modules and circuits described in combination with the disclosure of the present application. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, apparatus and unit can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0438] It should be noted that,Figure 10 The communication device 1000 shown can be used to implement other steps implemented by the terminal device in the aforementioned corresponding method embodiments, and to achieve the corresponding technical effects of the terminal device. Figure 10 The specific implementation of the communication device 1000 shown can be referred to the descriptions in the aforementioned method embodiments, and will not be repeated here.

[0439] Please see Figure 11 This is a schematic diagram illustrating the structure of the network device or some components (e.g., processor, chip, or chip system) involved in the above embodiments provided for the embodiments of this application. In the following text, [the following text refers to...] Figure 11 The structural example diagram shown is a schematic diagram of a network device, which will be used as an example for illustration.

[0440] For example, the network device may include access network equipment or core network equipment.

[0441] For example, Figure 11 The schematic diagram of the network device shown can be used to perform the aforementioned... Figure 4 to Figure 11 The method described in any of the embodiments shown. Figure 4 For example, the network device can send first priority information in step S401, and the network device can also receive measurement results in step S403.

[0442] like Figure 11 As shown, the network device includes at least one processor 1111. Optionally, the network device may also include a network interface 1114.

[0443] Optionally, the network device further includes a memory 1112, a transceiver 1113, and one or more antennas 1115. The processor 1111, memory 1112, transceiver 1113, and network interface 1114 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto. The antenna 1115 is connected to the transceiver 1113. The network interface 1114 enables the network device to communicate with other communication devices through a communication link. For example, the network interface 1114 may include a network interface between the network device and a core network device, such as an S1 interface; the network interface may also include a network interface between the network device and other network devices (e.g., other network devices or core network devices), such as an X2 or Xn interface.

[0444] The processor 1111 is mainly used for processing communication protocols and communication data, and controlling the whole network device, executing software programs, processing data of the software programs, for example, for supporting the network device to perform actions described in the embodiments. The network device can include a baseband processor and a central processor, the baseband processor is mainly used for processing communication protocols and communication data, and the central processor is mainly used for controlling the whole terminal device, executing software programs, and processing data of the software programs. Figure 11 The processor 1111 in the terminal device can integrate the functions of the baseband processor and the central processor, and those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected by a bus or the like. Those skilled in the art can understand that the terminal device can include multiple baseband processors to adapt to different network modes, and the terminal device can include multiple central processors to enhance its processing capability, and various components of the terminal device can be connected by various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

[0445] The memory is mainly used for storing software programs and data. The memory 1112 can exist independently and be connected to the processor 1111. Alternatively, the memory 1112 can be integrated with the processor 1111, for example, integrated in a chip. The memory 1112 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 1111 controls the execution. Various computer programs executed can also be regarded as a driver of the processor 1111.

[0446] Figure 11 Only one memory and one processor are shown. In actual terminal devices, multiple processors and multiple memories can exist. The memory can also be referred to as a storage medium or a storage device, etc. The memory can be a storage element on the same chip as the processor, that is, an on-chip storage element, or an independent storage element, and the embodiments of the present application do not limit this.

[0447] The transceiver 1113 can be configured to support the receiving or transmitting of radio frequency signals between the network device and a terminal. The transceiver 1113 can be connected to the antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1115 can receive radio frequency signals, the receiver Rx of the transceiver 1113 is configured to receive the radio frequency signals from the antenna and 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 for further processing, such as demodulation processing and decoding processing, of the digital baseband signals or digital intermediate frequency signals by the processor 1111. In addition, the transmitter Tx in the transceiver 1113 is also configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 1111, and 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 or more levels of down-mixing and analog-to-digital conversion to obtain digital baseband signals or digital intermediate frequency signals, and the order of the down-mixing and analog-to-digital conversion can be adjustable. The transmitter Tx can selectively perform one or more levels of up-mixing and digital-to-analog conversion to obtain radio frequency signals, and the order of the up-mixing and digital-to-analog conversion can be adjustable. The digital baseband signals and the digital intermediate frequency signals can be collectively referred to as digital signals.

[0448] The transceiver can also be referred to as a transceiving unit, a transceiver, a transceiving device, etc. Optionally, the devices in the transceiving unit for implementing the receiving function can be regarded as a receiving unit, and the devices in the transceiving unit for implementing the transmitting function can be regarded as a transmitting unit, that is, the transceiving unit includes the receiving unit and the transmitting unit, the receiving unit can also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0449] It should be noted that, Figure 11 The network device shown can be used to implement the steps implemented by the network device in the foregoing method embodiments, and achieve the corresponding technical effects of the network device, Figure 11 The specific implementation of the network device shown can be referred to the description in the foregoing method embodiments, which will not be repeated here.

[0450] The embodiments of the present application also provide a computer readable storage medium storing one or more computer execution instructions, when the computer execution instructions are executed by a processor, the processor executes the method described in the possible implementation manner of the terminal device in the foregoing embodiments.

[0451] The embodiment of the present application further provides a computer readable storage medium storing one or more computer-executable instructions that, when executed by a processor, cause the processor to perform the method described in the possible implementation manners of the network device.

[0452] The embodiment of the present application further provides a computer program product (or computer program) storing one or more computers that, when executed by the processor, cause the processor to perform the method described in the possible implementation manners of the terminal device.

[0453] The embodiment of the present application further provides a computer program product storing one or more computers that, when executed by the processor, cause the processor to perform the method described in the possible implementation manners of the network device.

[0454] The embodiment of the present application further provides a chip system including at least one processor for supporting the terminal device to implement the functions involved in the possible implementation manners of the terminal device. Optionally, the chip system further includes an interface circuit for providing the at least one processor with program instructions and / or data. In a possible design, the chip system can further include a memory for storing the necessary program instructions and data of the terminal device. The chip system can be composed of a chip, or can include the chip and other discrete devices.

[0455] The embodiment of the present application further provides a chip system including at least one processor for supporting the network device to implement the functions involved in the possible implementation manners of the network device. Optionally, the chip system further includes an interface circuit for providing the at least one processor with program instructions and / or data. In a possible design, the chip system can further include a memory for storing the necessary program instructions and data of the network device. The chip system can be composed of a chip, or can include the chip and other discrete devices, where the network device can be the network device in the foregoing method embodiments.

[0456] The embodiment of the present application further provides a communication system, where the network system architecture includes the terminal device and the network device in any of the foregoing embodiments.

[0457] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0458] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0459] In addition, each functional unit in the various embodiments of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit. The integrated unit can be implemented in the form of hardware or 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, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that make contributions, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and various media that can store program codes.

[0460] The above is merely specific implementation of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the embodiments of the present application, which should be covered in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method comprises: A terminal device receives first configuration information, the first configuration information being used for configuring n sounding reference signals, wherein the sounding reference signals are used for positioning, at least one of the n sounding reference signals corresponding to a carrier that is not used for transmitting a PUSCH signal and a PUCCH signal, n being an integer greater than 1; The terminal device transmits the n sounding reference signals based on the first configuration information, wherein the n sounding reference signals are carried on a same time domain resource unit.

2. The method of claim 1, wherein, Before the terminal device receives the first configuration information, the method further comprises: The terminal device transmits first information, the first information being used for indicating capability information of the terminal device.

3. The method of claim 2, wherein, The first information comprises at least one of: First indication information, used for indicating a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used for transmitting m sounding reference signals, the m sounding reference signals being used for positioning, at least one of the m sounding reference signals corresponding to a carrier that is not used for transmitting a PUSCH signal and a PUCCH signal, the m sounding reference signals being configured to be carried on the same time domain resource unit, m being an integer greater than 1; or, Second indication information, used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or, Third indication information, used for indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA contains at least one carrier that is not used for transmitting a PUSCH signal and a PUCCH signal; or, Fourth indication information, used for indicating a first switching time, the first switching time being used for switching 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 carrier that is not used for transmitting a PUSCH signal and a PUCCH signal; Or, Fifth indication information, used for indicating that the terminal device does not transmit the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; Or, Sixth indication information, used for indicating that the terminal device does not transmit one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit.

4. The method according to any one of claims 1 to 3, characterized in that, The terminal device transmits the n sounding reference signals based on the first configuration information comprises: The terminal device determines that carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit, and the terminal device transmits the n sounding reference signals based on the first configuration information.

5. The method of claim 4, wherein, The method further comprises: The terminal device determines that carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, and the terminal device determines not to transmit the n sounding reference signals.

6. The method of claim 5, wherein, The first configuration information further comprises seventh indication information, which is used to indicate that the terminal device does not transmit the n sounding reference signals when the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

7. The method of claim 4, wherein, The method further comprises: The terminal device determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit, and the terminal device determines not to transmit the one or more sounding reference signals.

8. The method of claim 7, wherein, The first configuration information further comprises eighth indication information, which is used to indicate that the terminal device does not transmit one or more of the n sounding reference signals when the carriers corresponding to the one or more sounding reference signals collide on the same time domain resource unit.

9. The method according to any one of claims 5 to 8, characterized in that, The method further comprises: The terminal device receives second information, which comprises at least one of the following: Ninth indication information, which is used to indicate that at least one symbol corresponding to the same time domain resource unit is flexible; or, Tenth indication information, which is used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted; The terminal device determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit based on the second information.

10. The method according to any one of claims 5 to 8, characterized in that, The method further comprises: The terminal device receives eleventh indication information, which is used to indicate that a first signal is transmitted on the carriers corresponding to one or more of the n sounding reference signals, wherein the first signal comprises 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 terminal device determines a first symbol set, which is the symbols occupied by the first signal or the union of the symbols occupied by the first signal and switching symbols, the switching symbols being before or after the symbols occupied by the first signal, and the number of the switching symbols being determined by a first switching time. When the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the terminal device determines that the carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

11. The method according to any one of claims 1 to 3, characterized in that, The carrier corresponding to at least one of the n sounding reference signals is only used to transmit the sounding reference signal. Or, the carrier corresponding to at least one of the n sounding reference signals is only used to transmit the sounding reference signal and a physical random access channel (PRACH) signal.

12. The method of any one of claims 1 to 3, wherein: The n carriers corresponding to the n sounding reference signals are located in the same frequency band.

13. The method according to any one of claims 1 to 3, characterized in that, The n sounding reference signals are co-antenna port or have a phase difference.

14. A communication method characterized by comprising: Comprise: The network device determines first configuration information, the first configuration information is used for configuring n sounding reference signals, wherein the sounding reference signal is used for positioning, the n sounding reference signals are carried in the same time domain resource unit, at least one sounding reference signal in the n sounding reference signals corresponds to a carrier not used for transmitting a PUSCH signal and a PUCCH signal, n is an integer greater than 1; The network device sends the first configuration information.

15. The method of claim 14, wherein, Before the network device sends the first configuration information, the method further comprises: The network device receives first information, the first information is used for indicating the capability information of the terminal device; The network device determines the first configuration information based on the first information.

16. The method of claim 15, wherein, The first information comprises at least one of: First indication information, used to indicate a first maximum aggregate bandwidth;The first maximum aggregate bandwidth is used to send m sounding reference signals, the m sounding reference signals are used for positioning, at least one sounding reference signal in the m sounding reference signals corresponds to a carrier not used for transmitting a PUSCH signal and a PUCCH signal, the m sounding reference signals are configured to be carried on the same time domain resource unit, m is an integer greater than 1;Or, Second indication information, used to indicate the number of continuous carriers corresponding to the first maximum aggregate bandwidth;Or, Third indication information, used to indicate that the terminal device supports uplink carrier aggregation UL CA, and the carrier set corresponding to the UL CA contains at least one carrier not used for transmitting a PUSCH signal and a PUCCH signal;Or, Fourth indication information, used to indicate a first switching time, the first switching time is used for switching between the terminal device sending signals on a first carrier set and sending sounding reference signals on a second carrier set, the first carrier set does not include a positioning carrier, and the second carrier set includes at least one carrier not used for transmitting a PUSCH signal and a PUCCH signal; Or, Fifth indication information, used to indicate that when the carrier corresponding to one or more sounding reference signals in the m sounding reference signals collides on the same time domain resource unit, the terminal device does not send the m sounding reference signals; Or, Sixth indication information, used to indicate that when the carrier corresponding to one or more sounding reference signals in the m sounding reference signals collides on the same time domain resource unit, the terminal device does not send the one or more sounding reference signals.

17. The method according to any one of claims 14 to 16, characterized in that, The first configuration information further comprises seventh indication information, the seventh indication information is used to indicate that when the carrier corresponding to one or more sounding reference signals in the n sounding reference signals collides on the same time domain resource unit, the terminal device does not send the n sounding reference signals.

18. The method according to any one of claims 14 to 16, characterized in that, The first configuration information further includes eighth indication information, the eighth indication information being used to indicate that the terminal device does not send one or more of the n sounding reference signals when carriers corresponding to the one or more sounding reference signals collide on the same time domain resource unit.

19. The method according to any one of claims 14 to 16, characterized in that, The method further includes: The network device sends second information, the second information including at least one of: Ninth indication information, the ninth indication information being used to indicate that at least one symbol corresponding to the same time domain resource unit is flexible; Tenth indication information, the tenth indication information being used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted; Eleventh indication information, the eleventh indication information being used to indicate that a first signal is transmitted 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.

20. The method of any one of claims 14-16, wherein: The carrier corresponding to at least one of the n sounding reference signals is not used to transmit a PDCCH signal and a PDSCH signal.

21. The method of any one of claims 14-16, wherein: The carrier corresponding to at least one of the n sounding reference signals is only used to transmit the sounding reference signal; Or, The carrier corresponding to at least one of the n sounding reference signals is only used to transmit the sounding reference signal and a physical random access channel (PRACH) signal.

22. The method of any one of claims 14-16, wherein: The n carriers corresponding to the n sounding reference signals are located in the same frequency band.

23. The method according to any one of claims 14 to 16, characterized in that, The n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

24. A communications device, characterized by The communication device is specifically a terminal device, and the communication device includes a receiving unit and a sending unit; The receiving unit is used to receive first configuration information, the first configuration information being used to configure n sounding reference signals, wherein the sounding reference signals are used for positioning, a carrier corresponding to at least one of the n sounding reference signals is not used to transmit a PUSCH signal and a PUCCH signal, and n is an integer greater than 1; and the sending unit is used to send the n sounding reference signals based on the first configuration information, wherein the n sounding reference signals are carried on the same time domain resource unit.

25. The apparatus of claim 24, wherein, The sending unit is further used to send first information, the first information being used to indicate capability information of the terminal device.

26. The apparatus of claim 25, wherein, The first information includes at least one of: The first indication information is used for indicating a first maximum aggregated bandwidth; the first maximum aggregated bandwidth is used for transmitting m sounding reference signals, the m sounding reference signals are used for positioning, at least one of the m sounding reference signals corresponds to a carrier which is not used for transmitting a PUSCH signal and a PUCCH signal, the m sounding reference signals are configured to be carried on the same time domain resource unit, and m is an integer greater than 1; or The second indication information is used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or The third indication information is used for indicating that the terminal device supports uplink carrier aggregation (UL CA), and a carrier set corresponding to the UL CA includes at least one carrier which is not used for transmitting a PUSCH signal and a PUCCH signal; or The fourth indication information is used for indicating a first switching time, the first switching time is used for switching 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 does not include a positioning carrier, and the second carrier set includes at least one carrier which is not used for transmitting a PUSCH signal and a PUCCH signal; Or The fifth indication information is used for indicating that the terminal device does not transmit the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; Or The sixth indication information is used for indicating that the terminal device does not transmit one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit.

27. The apparatus of any one of claims 24-26, wherein, The apparatus further includes a processing unit; The sending unit is specifically configured to transmit the n sounding reference signals based on the first configuration information when the processing unit determines that carriers corresponding to one or more of the n sounding reference signals do not collide on the same time domain resource unit, wherein the first signal includes at least one of a PDCCH signal, a PDSCH signal, a PUSCH signal, and a PUCCH.

28. The apparatus of claim 27, wherein The processing unit is configured to determine not to transmit the n sounding reference signals when it is determined that carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

29. The apparatus of claim 27, wherein, The first configuration information further includes seventh indication information, the seventh indication information is used for indicating that the terminal device does not transmit the n sounding reference signals when a carrier corresponding to any of the n sounding reference signals collides on the same time domain resource unit.

30. The apparatus of claim 27, wherein The processing unit is further configured to determine not to transmit one or more of the n sounding reference signals when it is determined that carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

31. The apparatus of claim 27, wherein, The first configuration information further comprises eighth indication information, the eighth indication information being used to indicate that the terminal device does not send one or more of the n sounding reference signals when carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

32. The apparatus of any one of claims 28-31, wherein, The receiving unit is further configured to receive second information, the second information comprising at least one of: ninth indication information, the ninth indication information being used to indicate 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 being used to indicate that at least one symbol corresponding to the same time domain resource unit is preempted. The processing unit is further configured to determine that carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit based on the second information.

33. The apparatus of any one of claims 28-31, wherein, The receiving unit is further configured to receive eleventh indication information, the eleventh indication information being used to indicate that a first signal is transmitted on carriers corresponding to one or more of the n sounding reference signals, wherein the first signal comprises 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 processing unit is further configured to determine a first symbol set, the first symbol set being symbols occupied by the first signal or the first symbol set being a union of symbols occupied by the first signal and switching symbols, the switching symbols being before or after the symbols occupied by the first signal, a number of the switching symbols being determined by a first switching time. When the processing unit determines that the first symbol set contains at least one symbol corresponding to the same time domain resource unit, the processing unit determines that carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

34. The apparatus of any one of claims 24-26, wherein, at least one of the n sounding reference signals is transmitted only on a carrier corresponding to the at least one of the n sounding reference signals; or at least one of the n sounding reference signals is transmitted only on a carrier corresponding to the at least one of the n sounding reference signals and a physical random access channel (PRACH) signal.

35. The apparatus of any one of claims 24-26, wherein, the n carriers corresponding to the n sounding reference signals are located in a same frequency band. the n sounding reference signals share an antenna port or the n sounding reference signals have a phase difference.

36. The apparatus of any one of claims 24 to 26, wherein, The communication apparatus is specifically a network device, and the communication apparatus comprises a processing unit and a transceiver unit.

37. A communications device, characterized by ​ The processing unit is configured to determine first configuration information, the first configuration information being used for configuring n sounding reference signals, wherein the sounding reference signals are used for positioning, the n sounding reference signals are carried on a same time domain resource unit, at least one of the n sounding reference signals corresponds to a carrier that is not used for transmitting a PUSCH signal and a PUCCH signal, and n is an integer greater than 1; and the transceiver is configured to send the first configuration information.

38. The apparatus of claim 37, wherein, The transceiver is further configured to send first information, the first information being used for indicating capability information of a terminal device. The processing unit is further configured to determine the first configuration information based on the first information.

39. The device of claim 38, wherein, The first information comprises at least one of: first indication information used for indicating a first maximum aggregated bandwidth, the first maximum aggregated bandwidth being used for sending m sounding reference signals, the m sounding reference signals being used for positioning, at least one of the m sounding reference signals corresponding to a carrier that is not used for transmitting a PUSCH signal and a PUCCH signal, the m sounding reference signals being configured to be carried on the same time domain resource unit, and m being an integer greater than 1; or, second indication information used for indicating a number of continuous carriers corresponding to the first maximum aggregated bandwidth; or, third indication information used for indicating that the terminal device supports uplink carrier aggregation (UL CA) and a carrier set corresponding to the UL CA includes at least one carrier that is not used for transmitting a PUSCH signal and a PUCCH signal; or, fourth indication information used for indicating a first switching time, the first switching time being used for switching between sending a signal on a first carrier set and sending 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 carrier that is not used for transmitting a PUSCH signal and a PUCCH signal; or, fifth indication information used for indicating that the terminal device does not send the m sounding reference signals when carriers corresponding to one or more of the m sounding reference signals collide on the same time domain resource unit; or, sixth indication information used for indicating that the terminal device does not send one or more of the m sounding reference signals when carriers corresponding to the one or more of the m sounding reference signals collide on the same time domain resource unit. The first configuration information further comprises seventh indication information used for indicating that the terminal device does not send n sounding reference signals when carriers corresponding to one or more of the n sounding reference signals collide on the same time domain resource unit.

40. The apparatus of any one of claims 37-39, wherein, The first configuration information further comprises eighth indication information used for indicating that the terminal device does not send one or more of the n sounding reference signals when carriers corresponding to the one or more of the n sounding reference signals collide on the same time domain resource unit.

41. The apparatus of any one of claims 37-39, wherein, ​ 42. The apparatus of any of claims 37 to 39, wherein the transceiver is further configured to transmit second information, the second information comprising at least one of: ninth indication information indicating that at least one symbol corresponding to the same time-domain resource unit is flexible; or, tenth indication information indicating that at least one symbol corresponding to the same time-domain resource unit is preempted.

43. The apparatus of any of claims 37 to 39, wherein at least one of the n SRSs corresponds to a carrier that is not used to transmit a PDCCH signal and a PDSCH signal.

44. The apparatus of any of claims 37 to 39, wherein at least one of the n SRSs corresponds to a carrier that is used to transmit only the SRS; or, at least one of the n SRSs corresponds to a carrier that is used to transmit only the SRS and a PRACH signal.

45. The apparatus of any of claims 37 to 39, wherein the n SRSs correspond to n carriers in a same frequency band. The n SRSs share an antenna port or the n SRSs have a phase difference. The apparatus comprises at least one processor coupled with a memory; The memory is configured to store a program or instructions; The at least one processor is configured to execute the program or instructions to cause the apparatus to implement the method of any of claims 1 to 13; or, the at least one processor is configured to execute the program or instructions to cause the apparatus to implement the method of any of claims 14 to 23. The medium stores instructions that, when executed by a computer, implement the method of any of claims 1 to 23. The computer program product, when executed by a processor, implements the method of any of claims 1 to 23. ​ ​ ​ 46. The apparatus of any one of claims 37-39, wherein, ​ 47. A communications device, characterized by ​ ​ ​ ​ ​ 48. A computer-readable storage medium, characterized in that, ​ 49. A computer program product, characterised in that, ​

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