Signal processing method and device

Abstract

Embodiments of the present application relate to a method and apparatus for signal processing. The method comprises: determining a plurality of signals that are quasi-co-located with a first port set in a first reference signal, the first port set being used to send or receive the first reference signal, the first port set comprising at least one port; determining a target signal among the plurality of signals; and sending or receiving the signal sent or received by the first reference signal through the first port set based on the quasi-co-located relationship between the first port set and the target signal. The method and apparatus for signal processing of the embodiments of the present application can improve the channel estimation performance of the reference signal, and can also determine the optimal transmit beam for the reference signal.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a method and apparatus for signal processing. Background Art

[0002] In new radio (NR) systems, because the downlink signals received by a terminal may originate from different transmission and reception points (TRPs) or panels, the concept of quasi-colocation (QCL) is introduced. If two downlink signals are emitted from the same TRP or panel, they can be considered to be QCL with respect to large-scale channel parameters. This means that they can be assumed to experience similar or identical large-scale channels. Therefore, the large-scale channel parameters obtained from one downlink signal can be used to estimate the channel of the other downlink signal, improving the channel estimation performance of the other downlink signal.

[0003] On the other hand, different signals in an NR system can be transmitted using the same or different beams. If two signals are transmitted or received using the same beam, they can be considered to be QCL with respect to spatial reception parameters. This means that the transmit or receive beams used by them can be assumed to be similar or identical. This allows the transmit or receive beam of one signal to be used as the transmit or receive beam of the other, improving transmission or reception performance.

[0004] However, if a signal is QCLed with multiple signals simultaneously, the terminal cannot know which signal's QCL relationship should be used to assist in transmission or reception. Summary of the Invention

[0005] The present application provides a signal processing method and apparatus, which can improve transmission or reception performance.

[0006] In a first aspect, a method for signal processing is provided, the method comprising: determining a plurality of signals that are quasi-co-located with a first port set in a first reference signal, the first port set being used to send or receive the first reference signal, the first port set comprising at least one port; determining a target signal among the plurality of signals; and sending or receiving a signal that is sent or received by the first reference signal through the first port set based on the quasi-co-located relationship between the first port set and the target signal.

[0007] Therefore, the signal processing method of an embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals, and send or receive the reference signal based on the quasi-co-location relationship between the reference signal and the target signal, thereby improving the channel estimation performance of the reference signal, and can also determine the optimal transmission beam for the reference signal.

[0008] In combination with the first aspect, in an implementation manner of the first aspect, the first reference signal is a downlink signal, and the multiple signals are downlink signals; or, the first reference signal is an uplink signal, and the multiple signals include uplink signals and / or downlink signals.

[0009] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, the multiple signals are signals of different types.

[0010] Optionally, the multiple signals may include signals of the same type. For example, the multiple signals may include two CSI-RSs, but the two CSI-RSs are used in different scenarios, one for beam management and the other for CSI measurement. For another example, the multiple signals may include two SRSs, and similarly, the two SRSs are used in different scenarios, one for beam management and the other for CSI measurement.

[0011] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, the first reference signal is one of a demodulation reference signal DMRS, a channel state information reference signal CSI-RS, a channel sounding reference signal SRS, and a phase tracking reference signal PTRS.

[0012] In combination with the first aspect and the above implementation manner thereof, in another implementation manner of the first aspect, the first port set includes some antenna ports or all antenna ports used to send or receive the first reference signal.

[0013] It should be understood that when the first reference signal corresponds to only one port set, the first port set is all antenna ports of the first reference signal.

[0014] It should be understood that when the first reference signal corresponds to multiple port sets, the first port set may be any one of the multiple port sets, and the first port set includes some antenna ports corresponding to the first reference signal.

[0015] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, determining multiple signals that are quasi-co-located with the first port set in the first reference signal includes: receiving quasi-co-located indication information sent by a network device; and determining a first signal that is quasi-co-located with the first port set based on the quasi-co-located indication information, wherein the first signal belongs to the multiple signals.

[0016] It should be understood that the terminal device can receive one or more quasi-co-location indication information sent by the network device, and determine a corresponding signal according to each quasi-co-location information.

[0017] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, determining multiple signals that are quasi-co-located with the first port set in the first reference signal includes: determining a second signal that is quasi-co-located with the first port set based on beam correspondence, and the second signal belongs to the multiple signals.

[0018] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, the second signal that is quasi-co-located with the first port set is determined based on the beam correspondence, including: if the beam for sending or receiving the signal on the first port set is the same as the beam for sending or receiving the second signal, determining that the first port set and the second signal are quasi-co-located in terms of spatial reception parameters.

[0019] In combination with the first aspect and the above implementation manner thereof, in another implementation manner of the first aspect, the quasi-co-location relationship between the first port set and at least two signals among the multiple signals is for different channel large-scale parameters.

[0020] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, the large-scale channel parameters include: delay spread, Doppler spread, Doppler frequency shift, average gain, average delay, departure angle, arrival angle, reception correlation, transmission correlation, and at least one parameter of spatial reception parameters.

[0021] It should be understood that, since the first port set of the first reference signal and different signals among the multiple signals may be quasi-colocated with respect to different large-scale parameters, different target signals may also be determined with respect to different channel large-scale parameters.

[0022] In combination with the first aspect and the above-mentioned implementation manner of the first aspect, in another implementation manner of the first aspect, determining the target signal among the multiple signals includes: determining the target signal according to the priority of each signal among the multiple signals.

[0023] In conjunction with the first aspect and the above implementation thereof, in another implementation of the first aspect, the priority of the target signal is higher than the priority of a third signal among the multiple signals. The third signal may be any other signal among the multiple signals except the target signal.

[0024] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, the first port set and the target signal are quasi-colocated with respect to the target channel large-scale parameter, and the first port set and the third signal are quasi-colocated with respect to the target channel large-scale parameter.

[0025] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, determining the target signal among the multiple signals includes: determining the target signal according to preset rules based on at least one quasi-co-location indication information sent by the network device, and the at least one quasi-co-location indication information is used to determine the multiple signals that are quasi-co-located with the first port set.

[0026] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, the target signal is determined according to a preset rule based on at least one quasi-co-location indication information sent by the network device, including: determining the last received quasi-co-location indication information among the at least one quasi-co-location indication information, the last received quasi-co-location indication information is used to indicate a fourth signal that is quasi-co-located with the first port set, and the fourth signal belongs to the multiple signals; and determining the fourth signal as the target signal.

[0027] In combination with the first aspect and its above-mentioned implementation method, in another implementation method of the first aspect, the target signal is determined according to a preset rule based on at least one quasi-co-location indication information sent by the network device, including: receiving the target quasi-co-location indication information sent by the network device through downlink control information DCI signaling, and the target quasi-co-location indication information belongs to the at least one quasi-co-location indication information; determining the signal indicated by the target quasi-co-location indication information as the target signal.

[0028] In combination with the first aspect and its above-mentioned implementation method, in another implementation method of the first aspect, determining the target signal from the multiple signals includes: receiving indication information sent by a network device, where the indication information is used to indicate the target signal from the multiple signals; and determining the target signal based on the indication information.

[0029] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, the indication information is high-layer signaling or DCI signaling.

[0030] In combination with the first aspect and the above-mentioned implementation manner of the first aspect, in another implementation manner of the first aspect, determining the target signal among the multiple signals includes: determining the target signal according to an acquisition method of each signal among the multiple signals.

[0031] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, the acquisition method includes acquiring through quasi-co-location indication information and acquiring according to beam correspondence.

[0032] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, the quasi-colocation of the first port set and the fifth signal in the first reference signal indicates that the signal on the first port set and the fifth signal have the same or similar channel large-scale parameters, and the fifth signal is any one of the multiple signals.

[0033] In combination with the first aspect and its above-mentioned implementation, in another implementation of the first aspect, the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that the beam for sending or receiving the signal on the first port set is the same as or similar to the beam for sending or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

[0034] In combination with the first aspect and its above-mentioned implementation manner, in another implementation manner of the first aspect, the first port set and the target signal are quasi-co-located with respect to the target channel large-scale parameters, and based on the quasi-co-located relationship between the first port set and the target signal, the first reference signal is sent or received through the first port set. The signal includes: performing channel estimation on the first port set based on the target channel large-scale parameters obtained by receiving the target signal.

[0035] In combination with the first aspect and the above-mentioned implementation manner, in another implementation manner of the first aspect, sending or receiving the signal of the first reference signal sent or received through the first port set based on the quasi-co-location relationship between the first port set and the target signal includes: determining a target beam for sending or receiving the target signal; and sending or receiving the signal of the first reference signal on the first port set through the target beam.

[0036] Therefore, the signal processing method of the embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals. The reference signal and the multiple signals can be quasi-co-located for different channel large-scale parameters, and corresponding different target signals are determined among the multiple signals for the different channel large-scale parameters. Based on the quasi-co-location relationship between the reference signal and each of the target signals, the reference signal is sent or received, thereby improving the channel estimation performance of the reference signal, and also determining the optimal transmit beam for the reference signal.

[0037] In a second aspect, a signal processing apparatus is provided, configured to execute the method of the first aspect or any possible implementation of the first aspect. Specifically, the apparatus includes a unit configured to execute the method of the first aspect or any possible implementation of the first aspect.

[0038] In a third aspect, a signal processing device is provided, comprising: a storage unit and a processor, the storage unit being used to store instructions, the processor being used to execute the instructions stored in the memory, and when the processor executes the instructions stored in the memory, the execution causes the processor to execute the method in the first aspect or any possible implementation of the first aspect.

[0039] According to a fourth aspect, a computer-readable medium is provided for storing a computer program, wherein the computer program comprises instructions for executing the method according to the first aspect or any possible implementation of the first aspect.

[0040] In a fifth aspect, a computer program product comprising instructions is provided. When a computer executes the instructions of the computer program product, the computer performs the signal processing method of the first aspect or any possible implementation of the first aspect. Specifically, the computer program product can be executed on the signal processing apparatus of the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic flowchart of a method for processing a signal according to an embodiment of the present application.

[0042] Figure 2 is a schematic block diagram of a signal processing apparatus according to an embodiment of the present application.

[0043] Figure 3 is another schematic block diagram of a device for processing a signal according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0045] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSMC) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5G) system or NR, etc.

[0046] The terminal device in the embodiments of the present application may refer to a user device, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0047] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base station (base transceiver station, BTS) in a GSMC system or CDMA, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (evolutional NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiment of the present application is not limited.

[0048] Figure 1 FIG1 shows a schematic flow chart of a signal processing method 100 according to an embodiment of the present application, which can be executed by a terminal device. Figure 1 As shown, the method 100 includes: S110, determining a plurality of signals that are quasi-co-located with a first port set in the first reference signal, the first port set being used to send or receive the first reference signal, the first port set including at least one port; S120, determining a target signal among the plurality of signals; S130, sending or receiving a signal that is sent or received by the first reference signal through the first port set based on the quasi-co-located relationship between the first port set and the target signal.

[0049] Therefore, the signal processing method of an embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals, and send or receive the reference signal based on the quasi-co-location relationship between the reference signal and the target signal, thereby improving the channel estimation performance of the reference signal, and can also determine the optimal transmission beam for the reference signal.

[0050] In S110, multiple signals that are quasi-co-located with a first port set in the first reference signal are determined, where the quasi-co-location of the first port set of the first reference signal with the multiple signals may mean that the first port set is quasi-co-located with each port set in at least one port set corresponding to the multiple signals. The first reference signal may be an uplink signal or a downlink signal, the multiple signals may include uplink signals and / or downlink signals, and the multiple signals may include signals of different types, or signals of the same type used in different scenarios.

[0051] Optionally, the first reference signal may be an uplink signal or a downlink signal, for example, the first reference signal may be a demodulation reference signal (DMRS) or a channel state information reference signal (CSI-RS) or a channel sounding reference signal (SRS) or a phase tracking reference signal (PTRS). Specifically, if the first reference signal is a DMRS, it may be a DMRS of a physical broadcast channel (PBCH), a physical uplink control channel (PUCCH), a physical downlink control channel (PDCCH), a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH). If the first reference signal is a CSI-RS, it may be a CSI-RS used for beam management or a CSI-RS used for channel state information (CSI) measurement. If the first reference signal is an SRS, it may be an SRS used for beam management or an SRS used for CSI measurement.

[0052] Optionally, the first reference signal may be an uplink signal, and the multiple signals may include an uplink signal and / or a downlink signal. For example, the first reference signal is a downlink signal, and the multiple signals may include one or more of a synchronization signal block (SSB), a CSI-RS, a time-frequency tracking reference signal (TRS), a PTRS, and a DMRS. For another example, if the first reference signal is an uplink signal, the multiple signals may be at least one of an SSB, a CSI-RS, an SRS, a TRS, a PTRS, and a DMRS.

[0053] Optionally, the multiple signals may include signals of different types or signals of the same type. For example, the multiple signals may include two CSI-RSs, but the two CSI-RSs are used in different scenarios, one of which is used for beam management and the other is used for CSI measurement. For another example, the multiple signals may also include two SRSs. Similarly, the two SRSs are used in different scenarios, one of which is used for beam management and the other is used for CSI measurement.

[0054] In an embodiment of the present invention, the first port set may be all or part of the ports of the first reference signal. Specifically, the first reference signal may correspond to one or more port sets, each of which may include one or more ports. The first port set may be any one of the port sets corresponding to the first reference signal. For example, when the first reference signal corresponds to one port set, the first port set includes all ports of the first reference signal. For another example, when the first reference signal corresponds to multiple port sets, the first port set may be any one of the multiple port sets, that is, the first port set may include part of the ports of the first reference signal.

[0055] It should be understood that the terminal device may determine the multiple signals that are quasi-co-located with the first port set based on the QCL indication information sent by the network device, or based on beam correspondence. Optionally, the multiple signals may include some signals determined by the QCL indication information, and may also include some signals determined by beam correspondence.

[0056] Optionally, as an embodiment, the terminal device receives QCL indication information sent by the network device, and according to the QCL indication information, can determine the first signal among the multiple signals, and the first signal can be any one of the multiple signals. Specifically, the terminal device receives QCL indication information sent by the network device, and the QCL indication information can be used to indicate the quasi-co-location relationship between the first port set of the first reference signal and the first signal, and the terminal device determines the first signal according to the QCL indication information. The terminal device can receive one or more QCL indication information sent by the network device, and according to each QCL indication information in the at least one QCL indication information, respectively determine a signal that is quasi-co-located with the first port set, and then the terminal device can determine at least one signal among the multiple signals according to the QCL indication information sent by the network device.

[0057] Optionally, as an embodiment, the terminal device may determine a second signal from multiple signals based on beam correspondence, and the second signal may be any one of the multiple signals. When the terminal device determines that the beam for sending or receiving the second signal is the same as the beam for sending or receiving the signal on the first port set of the first reference signal, the terminal device may determine, based on the beam correspondence, that the first port set of the first reference signal and the second signal are quasi-colocated. Specifically, the first port set and the second signal are quasi-colocated with respect to spatial reception parameters. The second signal may be any one of the multiple signals, that is, at least one of the multiple signals may be determined based on the beam correspondence.

[0058] In an embodiment of the present application, the quasi-co-location relationship between the first port set of the first reference signal and multiple signals may be for the same or different large-scale channel parameters. For example, for any two signals among the multiple signals, namely the first signal and the second signal, the first port set of the first reference signal and the first signal are quasi-co-located for spatial reception parameters, and the first port set of the first reference signal and the second signal are quasi-co-located for Doppler frequency shift and Doppler spread. However, the embodiments of the present application are not limited to this.

[0059] In an embodiment of the present application, the large-scale channel parameters may include at least one of the following parameters: delay spread, Doppler spread, Doppler shift, average gain, average delay, departure angle, arrival angle, correlation of receiving, correlation of transmitting, and spatial receiving parameter.

[0060] In S120, a target signal is determined from the multiple signals. The terminal device may determine different target signals for different channel large-scale parameters. Since the first port set of the first reference signal is quasi-co-located with multiple signals, and can be quasi-co-located with the multiple signals for the same or different channel large-scale parameters, multiple target signals may be determined from the multiple signals, each target signal for a different channel large-scale parameter. For example, the terminal device may determine a first target signal and a second target signal, wherein the first port set and the first target signal are quasi-co-located with respect to the spatial reception parameter, and the first port set of the first reference signal and the second target signal are quasi-co-located with respect to the Doppler frequency shift and Doppler spread. The embodiments of the present application are not limited thereto.

[0061] Optionally, as an embodiment, the terminal device may determine the target signal from the multiple signals based on the priorities of the multiple signals. For example, the terminal device may determine the priority of each signal from the multiple signals and use the signal with the highest priority as the target signal. That is, for any signal from the multiple signals, such as the third signal, the priority of the third signal is not higher than that of the target signal.

[0062] For another example, when there are at least two signals among multiple signals, and the first port set and the at least two signals are quasi-co-located for the same channel large-scale parameters, then the signal with the highest priority among the at least two signals is determined as the target signal, that is, for any one of the at least two signals, such as the third signal, the priority of the third signal is not higher than that of the target signal.

[0063] It should be understood that different priorities can be set for different signals. For example, for downlink signals, the priority of TRS can be set higher than CSI-RS, and the priority of CSI-RS can be set higher than SSB. For uplink signals, the priority of SRS can be set higher than CSI-RS, and the priority of CSI-RS can be set higher than PTRS. The embodiments of the present application are not limited to this.

[0064] Optionally, as an embodiment, the terminal device may determine the target signal from the multiple signals according to a preset rule based on the QCL indication information. Specifically, the terminal device may determine the target signal based on the order in which the QCL indication information is received. For example, the terminal device may receive at least one QCL indication information sent by the network device, and based on the at least one QCL indication information, the terminal device may determine at least one signal that is quasi-co-located with the first port set. The terminal device may use the signal indicated by the last QCL indication information as the target signal, or use the signal indicated by the first QCL indication information as the target signal. The embodiments of the present application are not limited to this.

[0065] For example, the terminal device determines the last QCL indication information, and the last QCL indication information indicates the fourth signal, then the fourth signal is the target signal

[0066] Optionally, as an embodiment, the terminal device may determine the target signaling based on the signaling carrying the QCL indication information. For example, the terminal device may use the signal indicated by the QCL indication information received via downlink control information (DCI) signaling as the target signal, but the embodiments of the present application are not limited thereto.

[0067] Optionally, as an embodiment, the terminal device may also determine the target signal based on indication information sent by the network device, and the indication information may be sent via higher-layer signaling or DCI signaling. For example, if the terminal device receives indication information sent by the network device via DCI signaling, and the indication information indicates that a sixth signal among multiple signals has a quasi-co-location relationship with the first port set, the terminal device determines the sixth signal as the target signal.

[0068] For another example, the network side pre-indicates the quasi-co-location relationship between the first port set of the first reference signal of the terminal device and the sixth and seventh signals through radio resource control (RRC) signaling, and then indicates the quasi-co-location relationship between the first port set of the first reference signal of the terminal device and the sixth reference signal therein through DCI signaling. The terminal device can use the sixth signal as the target signal based on the RRC signal and the DCI signaling. In this case, the indication in the DCI can use only 1 bit of information to indicate the quasi-co-location relationship of the sixth signal or the seventh signal.

[0069] Optionally, as an embodiment, the terminal device may further determine the target signal based on a method for obtaining multiple signals. Specifically, the terminal device may obtain the multiple signals through various methods. For example, the terminal device may determine one or more signals that are quasi-co-located with the first port set based on QCL indication information sent by the network device. For another example, the terminal device may determine one or more signals that are quasi-co-located with the first port set based on beam correspondence.

[0070] When the plurality of signals quasi-co-located with the first port set include signals obtained by different acquisition methods, the signal obtained by a certain acquisition method can be used as the target signal. For example, the signal determined by the QCL indication information can be preferentially used as the target signal, but the embodiments of the present application are not limited thereto.

[0071] It should be understood that the terminal device can determine the target signal using one or more of the above methods. For example, at least two signals can be determined from multiple signals using any of the above methods, and then the target signal from the at least two signals can be obtained using another method. For another example, when the terminal device determines multiple target signals that are quasi-co-located with the first port set for different channel large-scale parameters, the determination method for each target signal can be the same or different, and the embodiments of the present application are not limited to this.

[0072] In S130, based on the quasi-co-location relationship between the first port set and the target signal, the signal transmitted or received by the first reference signal through the first port set is transmitted or received. In an embodiment of the present application, the quasi-co-location relationship between the first port set and the fifth signal among the multiple signals may indicate that: the large-scale parameters of the channel through which the signal on the first port set of the first reference signal and the fifth signal pass are similar or identical, or the beam used by the terminal device to transmit or receive the signal on the first port set of the first reference signal is similar or identical to the beam used to transmit or receive the fifth signal, wherein the fifth signal may be any one of the multiple signals.

[0073] Optionally, as an embodiment, the quasi-co-location relationship between the first port set of the first reference signal and the target signal indicates that the signals on the first port set of the first reference signal and the target signal have similar or identical large-scale parameters of the channel. Specifically, the terminal device may perform channel estimation on the first port set of the first reference signal based on the large-scale parameters of the target channel obtained by measuring the target signal.

[0074] Optionally, as an embodiment, the quasi-co-location relationship between the first port set of the first reference signal and the target signal indicates that the beam used for sending or receiving the signal on the first port set of the first reference signal is similar to or identical to the beam used for sending or receiving the target signal. Specifically, the terminal device can send or receive the signal on the first port set of the first reference signal based on the beam used for sending or receiving the target signal.

[0075] For example, the transmit beam of the target signal can be used as the transmit beam of the signal on the first port set of the first reference signal, or as the receive beam of the signal on the first port set of the first reference signal. For another example, the receive beam of the target signal can be used as the transmit beam of the signal on the first port set of the first reference signal, or as the receive beam of the signal on the first port set of the first reference signal.

[0076] Therefore, the signal processing method of the embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals. The reference signal and the multiple signals can be quasi-co-located for different channel large-scale parameters, and corresponding different target signals are determined among the multiple signals for the different channel large-scale parameters. Based on the quasi-co-location relationship between the reference signal and each of the target signals, the reference signal is sent or received, thereby improving the channel estimation performance of the reference signal, and also determining the optimal transmit beam for the reference signal.

[0077] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0078] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0079] Combined with the above Figure 1 , describes in detail the signal processing method according to the embodiment of the present application, and will be combined with Figures 2 to 3 , describes a signal processing device according to an embodiment of the present application.

[0080] like Figure 2 As shown, the signal processing device 200 according to an embodiment of the present application includes: a determination unit 210 and a transceiver unit 220.

[0081] Specifically, the determination unit 210 is used to: determine multiple signals that are quasi-co-located with the first port set in the first reference signal, the first port set is used to send or receive the first reference signal, and the first port set includes at least one port; the determination unit 210 is also used to: determine a target signal among the multiple signals; the transceiver unit 220 is used to: send or receive the signal sent or received by the first reference signal through the first port set based on the quasi-co-located relationship between the first port set and the target signal.

[0082] Therefore, the signal processing device of an embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals, and send or receive the reference signal based on the quasi-co-location relationship between the reference signal and the target signal, thereby improving the channel estimation performance of the reference signal, and can also determine the optimal transmission beam for the reference signal.

[0083] Optionally, the first reference signal is a downlink signal, and the multiple signals are downlink signals; or, the first reference signal is an uplink signal, and the multiple signals include uplink signals and / or downlink signals.

[0084] Optionally, the multiple signals are signals of different types.

[0085] Optionally, the first reference signal is one of DMRS, CSI-RS, SRS and PTRS.

[0086] Optionally, the first port set includes some or all antenna ports used to send or receive the first reference signal.

[0087] Optionally, the transceiver unit 220 is specifically used to: receive quasi-co-location indication information sent by the network device; the determination unit 210 is specifically used to: determine a first signal that is quasi-co-located with the first port set based on the quasi-co-location indication information, and the first signal belongs to the multiple signals.

[0088] Optionally, the determining unit 210 is specifically configured to: determine, according to beam correspondence, a second signal that is quasi-co-located with the first port set, where the second signal belongs to the multiple signals.

[0089] Optionally, the determination unit 210 is specifically used to: if the beam for sending or receiving the signal on the first port set is the same as the beam for sending or receiving the second signal, determine that the first port set and the second signal are quasi-co-located in terms of spatial reception parameters.

[0090] Optionally, the quasi-co-location relationship between the first port set and at least two signals among the multiple signals is for different channel large-scale parameters.

[0091] Optionally, the large-scale channel parameters include: at least one parameter of delay spread, Doppler spread, Doppler frequency shift, average gain, average delay, departure angle, arrival angle, reception correlation, transmission correlation, and spatial reception parameters.

[0092] Optionally, the determining unit 210 is specifically configured to determine the target signal according to a priority of each signal in the multiple signals.

[0093] Optionally, the priority of the target signal is higher than the priority of the third signal among the multiple signals.

[0094] Optionally, the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-co-located with respect to the target channel large-scale parameter.

[0095] Optionally, the determination unit 210 is specifically configured to determine the target signal according to a preset rule based on at least one quasi-co-location indication information sent by the network device, wherein the at least one quasi-co-location indication information is used to determine the multiple signals that are quasi-co-located with the first port set.

[0096] Optionally, the determination unit 210 is specifically used to: determine the last received quasi-co-location indication information among the at least one quasi-co-location indication information, the last received quasi-co-location indication information is used to indicate a fourth signal that is quasi-co-located with the first port set, and the fourth signal belongs to the multiple signals; and determine the fourth signal as the target signal.

[0097] Optionally, the transceiver unit 220 is specifically used to: receive target quasi-co-location indication information sent by the network device through DCI signaling, and the target standard co-location indication information belongs to the at least one quasi-co-location indication information; the determination unit 210 is specifically used to: determine the signal indicated by the target standard co-location indication information as the quasi-co-location signal of the first port set as the target signal.

[0098] Optionally, the transceiver unit 220 is specifically used to: receive indication information sent by the network device, where the indication information is used to indicate the target signal from the multiple signals; and the determination unit 210 is specifically used to: determine the target signal according to the indication information.

[0099] Optionally, the indication information is higher layer signaling or DCI signaling.

[0100] Optionally, the determining unit 210 is specifically configured to determine the target signal according to an acquisition method of each signal in the multiple signals.

[0101] Optionally, the acquisition method includes acquiring through quasi-co-location indication information and acquiring according to beam correspondence.

[0102] Optionally, the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that the signal on the first port set and the fifth signal have the same or similar channel large-scale parameters, or, the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that the beam for sending or receiving the signal on the first port set is the same as or similar to the beam for sending or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

[0103] Optionally, the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the determining unit 210 is specifically configured to perform channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

[0104] Optionally, the determination unit 210 is specifically used to: determine a target beam for sending or receiving the target signal; and the transceiver unit 220 is specifically used to: send or receive the signal of the first reference signal on the first port set through the target beam.

[0105] Optionally, the apparatus 200 may be a terminal device.

[0106] It should be understood that the signal processing apparatus 200 according to the embodiment of the present application may correspond to the method 100 in the embodiment of the present application, and the above and other operations and / or functions of each unit in the apparatus 200 are respectively to achieve Figure 1 For the sake of brevity, the corresponding processes of the terminal devices of each method in the present invention are not repeated here.

[0107] Therefore, the signal processing device of the embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine a target signal among the multiple signals. The reference signal and the multiple signals can be quasi-co-located for different channel large-scale parameters, and corresponding different target signals can be determined among the multiple signals for the different channel large-scale parameters. Based on the quasi-co-location relationship between the reference signal and each of the target signals, the reference signal is sent or received, thereby improving the channel estimation performance of the reference signal, and also determining the optimal transmit beam for the reference signal.

[0108] Figure 3 A schematic block diagram of a terminal device 300 according to an embodiment of the present application is shown. Figure 3 As shown, the terminal device 300 includes: a processor 310 and a transceiver 320, the processor 310 and the transceiver 320 being connected. Optionally, the terminal device 300 also includes a memory 330, the memory 330 being connected to the processor 310. The processor 310, the memory 330, and the transceiver 320 communicate with each other via an internal connection path to transmit and / or control data signals. The memory 330 can be used to store instructions, and the processor 310 is used to execute the instructions stored in the memory 330 to control the transceiver 320 to send information or signals. The processor 310 is used to determine multiple signals that are quasi-co-located with a first port set in the first reference signal, the first port set being used to send or receive the first reference signal, the first port set including at least one port; the processor 310 is further used to determine a target signal from the multiple signals; and the transceiver 320 is used to send or receive a signal transmitted or received by the first reference signal through the first port set based on the quasi-co-located relationship between the first port set and the target signal.

[0109] Therefore, the signal processing device of an embodiment of the present application, when determining that a reference signal and multiple signals are quasi-co-located, can determine the target signal among the multiple signals, and send or receive the reference signal based on the quasi-co-located relationship between the reference signal and the target signal, thereby improving the channel estimation performance of the reference signal, or determining the optimal transmission beam for the reference signal.

[0110] Optionally, the first reference signal is a downlink signal, and the multiple signals are downlink signals; or, the first reference signal is an uplink signal, and the multiple signals include uplink signals and / or downlink signals.

[0111] Optionally, the multiple signals are signals of different types.

[0112] Optionally, the first reference signal is one of DMRS, CSI-RS, SRS and PTRS.

[0113] Optionally, the first port set includes some or all antenna ports used to send or receive the first reference signal.

[0114] Optionally, the transceiver 320 is used to: receive quasi-co-location indication information sent by the network device; the processor 310 is further used to: determine a first signal that is quasi-co-located with the first port set according to the quasi-co-location indication information, and the first signal belongs to the multiple signals.

[0115] Optionally, the processor 310 is further configured to: determine, according to beam correspondence, a second signal that is quasi-co-located with the first port set, where the second signal belongs to the multiple signals.

[0116] Optionally, the processor 310 is further used to: if the beam for sending or receiving the signal on the first port set is the same as the beam for sending or receiving the second signal, determine that the first port set and the second signal are quasi-co-located in terms of spatial reception parameters.

[0117] Optionally, the quasi-co-location relationship between the first port set and at least two signals among the multiple signals is for different channel large-scale parameters.

[0118] Optionally, the large-scale channel parameters include: at least one parameter of delay spread, Doppler spread, Doppler frequency shift, average gain, average delay, departure angle, arrival angle, reception correlation, transmission correlation, and spatial reception parameters.

[0119] Optionally, the processor 310 is further configured to: determine the target signal according to a priority of each signal in the multiple signals.

[0120] Optionally, the priority of the target signal is higher than the priority of the third signal among the multiple signals.

[0121] Optionally, the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-co-located with respect to the target channel large-scale parameter.

[0122] Optionally, the processor 310 is further configured to: determine the target signal according to a preset rule based on at least one quasi-co-location indication information sent by the network device, wherein the at least one quasi-co-location indication information is used to determine the multiple signals that are quasi-co-located with the first port set.

[0123] Optionally, the processor 310 is also used to: determine the last received quasi-co-location indication information among the at least one quasi-co-location indication information, the last received quasi-co-location indication information is used to indicate a fourth signal that is quasi-co-located with the first port set, and the fourth signal belongs to the multiple signals; and determine the fourth signal as the target signal.

[0124] Optionally, the transceiver 320 is used to: receive target quasi-co-location indication information sent by the network device through DCI signaling, and the target standard co-location indication information belongs to the at least one quasi-co-location indication information; the processor 310 is also used to: determine the signal indicated by the target standard co-location indication information as the target signal, which is quasi-co-located with the first port set.

[0125] Optionally, the transceiver 320 is used to: receive indication information sent by a network device, where the indication information is used to indicate the target signal from the multiple signals; and the processor 310 is further used to: determine the target signal according to the indication information.

[0126] Optionally, the indication information is higher layer signaling or DCI signaling.

[0127] Optionally, the processor 310 is further configured to: determine the target signal according to a method for acquiring each signal in the multiple signals.

[0128] Optionally, the acquisition method includes acquiring through quasi-co-location indication information and acquiring according to beam correspondence.

[0129] Optionally, the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that the signal on the first port set and the fifth signal have the same or similar channel large-scale parameters, or, the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that the beam for sending or receiving the signal on the first port set is the same as or similar to the beam for sending or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

[0130] Optionally, the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the processor 310 is further configured to perform channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

[0131] Optionally, the processor 310 is further configured to: determine a target beam for sending or receiving the target signal; and the transceiver 320 is configured to: send or receive a signal of the first reference signal on the first port set through the target beam.

[0132] Optionally, the apparatus 300 may be a terminal device.

[0133] It should be understood that the signal processing apparatus 300 according to the embodiment of the present application may correspond to the signal processing apparatus 200 according to the embodiment of the present application, and may correspond to the terminal device that performs the method 100 according to the embodiment of the present application, and the above-mentioned and other operations and / or functions of each unit in the apparatus 300 are respectively for realizing Figure 1For the sake of brevity, the corresponding processes of the terminal device in each method are not repeated here.

[0134] Therefore, the signal processing device of the embodiment of the present application determines a quasi-co-location relationship between a reference signal and multiple signals, and can determine a target signal among the multiple signals. The reference signal and the multiple signals can be quasi-co-located for different channel large-scale parameters, and corresponding different target signals are determined among the multiple signals for the different channel large-scale parameters. According to the quasi-co-location relationship between the reference signal and each of the target signals, the reference signal is sent or received, thereby improving the channel estimation performance of the reference signal, and also determining the optimal transmit beam for the reference signal.

[0135] It should be noted that the above-described method embodiments of the present application can be applied to or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above-described method embodiments can be completed by hardware integrated logic circuits in the processor or by software instructions. The above-described processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software modules can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in a memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above-described method.

[0136] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0137] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0138] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0139] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0140] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0141] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0142] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling 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 method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0143] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A signal processing method, characterized in that: include: Determining a plurality of signals that are quasi-co-located with a first port set in the first reference signal, where the first port set is used to send or receive the first reference signal, and the first port set includes at least one port, wherein the first reference signal is a demodulation reference signal DMRS of a physical downlink shared channel PDSCH; determining a target signal among the plurality of signals; According to the quasi-co-location relationship between the first port set and the target signal, the first reference signal is sent or received through the first port set. Wherein, determining a target signal from the multiple signals includes: determining the target signal according to a preset rule based on at least one quasi-co-location indication information sent by a network device, wherein the at least one quasi-co-location indication information is used to determine the multiple signals that are quasi-co-located with the first port set; The step of determining the target signal according to a preset rule based on at least one quasi-co-location indication information sent by a network device includes: using a signal indicated by the quasi-co-location indication information received through downlink control information DCI signaling as the target signal.

2. The method according to claim 1, characterized in that The first reference signal is a downlink signal, and the multiple signals are downlink signals.

3. The method according to claim 1 or 2, characterized in that The multiple signals are signals of different types.

4. The method according to claim 1 or 2, characterized in that The first port set includes some or all antenna ports used to send or receive the first reference signal.

5. The method according to claim 1 or 2, characterized in that The determining of a plurality of signals that are quasi-co-located with the first port set in the first reference signal includes: Receiving the quasi-co-location indication information sent by the network device; A first signal that is quasi-co-located with the first port set is determined according to the quasi-co-location indication information, where the first signal belongs to the multiple signals.

6. The method according to claim 1 or 2, characterized in that The determining of a plurality of signals that are quasi-co-located with the first port set in the first reference signal includes: A second signal quasi-co-located with the first port set is determined according to the beam correspondence, where the second signal belongs to the multiple signals.

7. The method according to claim 6, characterized in that The determining, according to the beam correspondence, a second signal that is quasi-co-located with the first port set includes: If the beam for transmitting or receiving the signal on the first port set is the same as the beam for transmitting or receiving the second signal, it is determined that the first port set and the second signal are quasi-co-located in terms of spatial reception parameters.

8. The method according to claim 1 or 2, characterized in that The quasi-co-location relationship between the first port set and at least two signals among the plurality of signals is for different channel large-scale parameters.

9. The method according to claim 8, characterized in that The large-scale channel parameters include: at least one parameter selected from the group consisting of delay spread, Doppler spread, Doppler frequency shift, average gain, average delay, departure angle, arrival angle, reception correlation, transmission correlation, and spatial reception parameters.

10. The method according to claim 1 or 2, characterized in that The determining of a target signal from the plurality of signals comprises: The target signal is determined according to the priority of each signal in the plurality of signals.

11. The method according to claim 10, characterized in that The target signal has a higher priority than a third signal among the plurality of signals.

12. The method according to claim 11, characterized in that The first port set and the target signal are quasi-colocated with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-colocated with respect to the target channel large-scale parameter.

13. The method according to claim 1 or 2, characterized in that The determining of a target signal from the plurality of signals comprises: receiving indication information sent by the network device, where the indication information is used to indicate the target signal from the multiple signals; The target signal is determined according to the indication information.

14. The method according to claim 13, characterized in that The indication information is higher layer signaling or DCI signaling.

15. The method according to claim 1 or 2, characterized in that The determining of a target signal from the plurality of signals comprises: The target signal is determined according to a manner of acquiring each of the multiple signals.

16. The method according to claim 15, characterized in that The acquisition method includes acquiring through the quasi-co-location indication information and acquiring according to beam correspondence.

17. The method according to claim 1 or 2, characterized in that The quasi-colocation of the first port set and the fifth signal in the first reference signal indicates that the signal on the first port set and the fifth signal have the same or similar channel large-scale parameters, or The quasi-co-location of the first port set and the fifth signal in the first reference signal means that the beam for sending or receiving the signal on the first port set is the same as or similar to the beam for sending or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

18. The method according to claim 17, characterized in that The first port set and the target signal are quasi-colocated with respect to a target channel large-scale parameter, The sending or receiving, according to the quasi-co-location relationship between the first port set and the target signal, the first reference signal sent or received through the first port set includes: Channel estimation is performed on the first port set according to the target channel large-scale parameters obtained by receiving the target signal.

19. The method according to claim 17, wherein The sending or receiving, according to the quasi-co-location relationship between the first port set and the target signal, the first reference signal sent or received through the first port set includes: determining a target beam for transmitting or receiving the target signal; The first reference signal is transmitted or received on the first port set through the target beam.

20. A signal processing device, characterized in that: include: a determining unit, configured to determine a plurality of signals quasi-co-located with a first port set in the first reference signal, where the first port set is used to send or receive the first reference signal, the first port set including at least one port, wherein the first reference signal is a DMRS of a PDSCH; The determining unit is further configured to: determine a target signal among the multiple signals; a transceiver unit, configured to send or receive a signal sent or received by the first reference signal through the first port set according to a quasi-co-location relationship between the first port set and the target signal, The determining unit is specifically configured to: determining the target signal according to a preset rule based on at least one quasi-co-location indication information sent by a network device, wherein the at least one quasi-co-location indication information is used to determine the multiple signals that are quasi-co-located with the first port set; The step of determining the target signal according to a preset rule based on at least one quasi-co-location indication information sent by a network device includes: using a signal indicated by the quasi-co-location indication information received through downlink control information DCI signaling as the target signal.

21. The device according to claim 20, characterized in that The first reference signal is a downlink signal, and the multiple signals are downlink signals.

22. The device according to claim 20 or 21, characterized in that The multiple signals are signals of different types.

23. The device according to claim 20 or 21, characterized in that The first port set includes some or all antenna ports used to send or receive the first reference signal.

24. The device according to claim 20 or 21, characterized in that The transceiver unit is specifically used for: Receiving the quasi-co-location indication information sent by the network device; The determining unit is specifically configured to: A first signal that is quasi-co-located with the first port set is determined according to the quasi-co-location indication information, where the first signal belongs to the multiple signals.

25. The device according to claim 20 or 21, characterized in that The determining unit is specifically configured to: A second signal quasi-co-located with the first port set is determined according to the beam correspondence, where the second signal belongs to the multiple signals.

26. The device according to claim 25, characterized in that The determining unit is specifically configured to: If the beam for transmitting or receiving the signal on the first port set is the same as the beam for transmitting or receiving the second signal, it is determined that the first port set and the second signal are quasi-co-located in terms of spatial reception parameters.

27. The device according to claim 20 or 21, characterized in that The quasi-co-location relationship between the first port set and at least two signals among the plurality of signals is for different channel large-scale parameters.

28. The device according to claim 27, characterized in that The large-scale channel parameters include: at least one parameter selected from the group consisting of delay spread, Doppler spread, Doppler frequency shift, average gain, average delay, departure angle, arrival angle, reception correlation, transmission correlation, and spatial reception parameters.

29. The device according to claim 20 or 21, characterized in that The determining unit is specifically configured to: The target signal is determined according to the priority of each signal in the plurality of signals.

30. The device according to claim 29, characterized in that The target signal has a higher priority than a third signal among the plurality of signals.

31. The device according to claim 30, characterized in that The first port set and the target signal are quasi-colocated with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-colocated with respect to the target channel large-scale parameter.

32. The device according to claim 20 or 21, characterized in that The transceiver unit is specifically used for: receiving indication information sent by the network device, where the indication information is used to indicate the target signal from the multiple signals; The determining unit is specifically configured to: The target signal is determined according to the indication information.

33. The device according to claim 32, characterized in that The indication information is higher layer signaling or DCI signaling.

34. The device according to claim 20 or 21, characterized in that The determining unit is specifically configured to: The target signal is determined according to a manner of acquiring each of the multiple signals.

35. The device according to claim 34, characterized in that The acquisition method includes acquiring through the quasi-co-location indication information and acquiring according to beam correspondence.

36. The device according to claim 20 or 21, characterized in that The quasi-colocation of the first port set and the fifth signal in the first reference signal indicates that the signal on the first port set and the fifth signal have the same or similar channel large-scale parameters, or The quasi-co-location of the first port set and the fifth signal in the first reference signal means that the beam for sending or receiving the signal on the first port set is the same as or similar to the beam for sending or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

37. The device according to claim 36, characterized in that The first port set and the target signal are quasi-colocated with respect to a target channel large-scale parameter, The determining unit is specifically configured to: Channel estimation is performed on the first port set according to the target channel large-scale parameters obtained by receiving the target signal.

38. The device according to claim 36, characterized in that The determining unit is specifically configured to: determining a target beam for transmitting or receiving the target signal; The transceiver unit is specifically used for: The first reference signal is transmitted or received on the first port set through the target beam.

39. A signal processing device, characterized in that include: storage unit; and processor, The storage unit is used to store instructions, and the processor is used to execute the instructions stored in the memory. When the processor executes the instructions stored in the memory, the execution causes the processor to execute the signal processing method according to any one of claims 1 to 19.

40. A computer-readable medium for storing a computer program, characterized in that The computer program comprises instructions for executing the method of signal processing according to any one of claims 1-19.

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