Signal processing method, apparatus, system, storage medium and computer program product

Abstract

Disclosed in the present disclosure are signal processing methods, an apparatus, a system, a storage medium and a computer program product. A method is applied to a network device, the method comprising: receiving first indication information reported by a terminal device; on the basis of the first indication information, configuring a demodulation reference signal for the terminal device; on the basis of the first indication information, the demodulation reference signal and data to be transmitted, generating a downlink signal; and transmitting the downlink signal to the terminal device. The present disclosure solves the problem that because of relatively low antenna switching speed of terminals, existing MIMO communication systems are prone to produce ICI during downlink transmissions and thus result in deterioration of the demodulation performance of receivers.

Description

Signal processing method, device, system, storage medium and computer program product

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims the priority of Chinese patent application with application number 202410339050.6 and application date March 22, 2024. The entire content of the Chinese patent application is hereby incorporated into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to the field of wireless communication technologies, and in particular to a signal processing method, device, system, storage medium, and computer program product. Background Art

[0004] With the rapid development of wireless communication technology, how to ensure the communication efficiency between base stations and communication terminals has become a hot topic. At present, a communication system proposed between a base station and a communication terminal is a multiple input multiple output (MIMO) communication system. By transmitting multiple data streams simultaneously and at the same frequency, it can effectively bring huge spectrum efficiency gains and is also an important enabling technology in the field of future communication technology. At present, the demodulation reference signal (DM-RS) is usually used in the new wireless / new air interface (NR) for channel estimation and related demodulation of the data channel. The DM-RS proposed in the related technology supports up to 12 orthogonal antenna ports to meet the requirements of MIMO applications. Among them, one time slot can be configured with up to 4 orthogonal frequency division multiplexing (OFDM) symbols to support high-speed mobile scenarios.

[0005] To ensure the transmission of more data streams, future MIMO communication systems will need to rapidly change antenna characteristics within a symbol period to expand the transmission channel and thereby exponentially increase spectral efficiency. However, for downlink transmission, when the antenna switching speed at the receiving end is slow, this time-domain channel change will cause the signal energy to spread across different subcarriers after time-frequency conversion, generating inter-carrier interference (ICI). ICI will reduce the effective signal-to-noise ratio of the transmitted signal, resulting in poor demodulation performance at the receiving end. Reducing the impact of ICI on the downlink channel has become a pressing technical issue. Summary of the Invention

[0006] To address the aforementioned technical issues, the present disclosure provides a signal processing method, apparatus, system, storage medium, and computer program product. These methods address the issue of ICI, which is easily generated during downlink transmission in current MIMO communication systems due to slow antenna switching speeds in terminals, leading to poor demodulation performance at the receiving end. The present disclosure proposes a transmission signal processing method for downlink transmission in a MIMO communication system, which effectively reduces the generation of ICI, thereby improving demodulation performance at the receiving end and reducing the impact of ICI on the downlink channel.

[0007] According to a first aspect of the present disclosure, a signal processing method is provided, which is applied to a network device, and the method includes: receiving first indication information reported by a terminal device; configuring a demodulation reference signal for the terminal device based on the first indication information; generating a downlink signal based on the first indication information, the demodulation reference signal and data to be sent; and sending the downlink signal to the terminal device.

[0008] In some embodiments, the method further includes: determining distribution information of the demodulation reference signal; and sending second indication information including the distribution information to the terminal device.

[0009] In some embodiments, configuring a demodulation reference signal for the terminal device based on the first indication information includes: in response to the first indication information indicating that the insertion method of the demodulation reference signal is a decoupling processing method, configuring the terminal device with a reference signal in a different communication symbol from the data, and the number is the same as the variable antenna characteristic data, to obtain the demodulation reference signal; in response to the first indication information indicating that the insertion method of the demodulation reference signal is a coupling processing method, configuring the terminal device with a reference signal in the same communication symbol as the data to obtain the demodulation reference signal.

[0010] In some embodiments, the second indication information comprises one of the following forms: a master message block signaling method and a radio resource control signaling method.

[0011] In some embodiments, the distribution information includes time domain distribution information of the demodulation reference signal, and the time domain distribution information includes at least a starting symbol and an occupied symbol length of the demodulation reference signal in a time slot.

[0012] According to a second aspect of the present disclosure, a signal processing method is provided, which is applied to a terminal device, and the method includes: determining first indication information based on a variable antenna of the terminal device; wherein the first indication information is used to request a network device to configure a demodulation reference signal for the terminal device, and the first indication information includes at least an insertion method of the demodulation reference signal; reporting the first indication information to the network device; and receiving a downlink signal sent by the network device; wherein the downlink signal includes: the demodulation reference signal and data to be sent.

[0013] In some embodiments, the method further includes: receiving second indication information sent by the network device; wherein the second indication information includes distribution information of the demodulation reference signal.

[0014] In some embodiments, the method further includes: performing demodulation processing on the downlink signal based on the distribution information and the insertion method to obtain demodulated data.

[0015] In some embodiments, determining the first indication information based on the variable antenna of the terminal device includes: determining the antenna switching time required for the variable antenna to perform antenna switching; and generating the first indication information based on the antenna switching time.

[0016] In some embodiments, generating the first indication information based on the antenna switching duration includes: determining a switching duration threshold; in response to the antenna switching duration being greater than the switching duration threshold, generating the first indication information indicating that the insertion method is a decoupling processing method; in response to the antenna switching duration being less than or equal to the switching duration threshold, generating the first indication information indicating that the insertion method is a coupling processing method.

[0017] In some embodiments, determining the switching time threshold includes: determining the antenna characteristic data of the variable antenna, the number of continuous sampling points occupied by each antenna included in the variable antenna, the upsampling multiple and the system sampling interval; and determining the switching time threshold based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple and the system sampling interval.

[0018] In some embodiments, determining the switching duration threshold based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple and the system sampling interval includes: calculating the product of the upsampling multiple and the system sampling interval to obtain a first value; accumulating the number of continuous sampling points occupied by each antenna characteristic included in the variable antenna to obtain a second value; and calculating the ratio of the first value to the second value to obtain the switching duration threshold.

[0019] In some embodiments, when the insertion method is a decoupling processing method, the downlink signal is demodulated based on the distribution information and the insertion method to obtain demodulated data, including: in response to the distribution information that the communication symbol included in the downlink signal is occupied by the data to be sent, within the symbol period corresponding to the communication symbol, switching is performed based on the antenna characteristics of the variable antenna, and the communication symbol is processed using a decoupling processing method to obtain the data to be sent; or in response to the distribution information that the communication symbol included in the downlink signal is occupied by the demodulation reference signal, within the symbol period, the communication symbol is processed using a decoupling processing method based on an antenna characteristic of the variable antenna to obtain antenna equivalent channel and inter-subcarrier interference ICI; wherein, the demodulated data includes the data to be sent, or the antenna equivalent channel and inter-subcarrier interference ICI.

[0020] According to a third aspect of the present disclosure, a signal processing method is provided, which is applied to a network device, and includes: receiving first indication information reported by a terminal device; and configuring a demodulation reference signal for the terminal device based on the first indication information.

[0021] In some embodiments, the method further includes: determining distribution information of the demodulation reference signal; and sending second indication information including the distribution information to the terminal device.

[0022] In some embodiments, configuring a demodulation reference signal for the terminal device based on the first indication information includes: in response to the first indication information indicating that the insertion method of the demodulation reference signal is a decoupling processing method, configuring the terminal device with a reference signal in a different communication symbol from the data, and the number is the same as the variable antenna characteristic data, to obtain the demodulation reference signal; in response to the first indication information indicating that the insertion method of the demodulation reference signal is a coupling processing method, configuring the terminal device with a reference signal in the same communication symbol as the data to obtain the demodulation reference signal.

[0023] According to a fourth aspect of the present disclosure, a first signal processing device is provided, comprising: a first receiving unit, a configuration unit, a generation unit, and a first sending unit.

[0024] The first receiving unit is used to receive first indication information reported by the terminal device.

[0025] The configuration unit is used to configure a demodulation reference signal for the terminal device based on the first indication information.

[0026] The generating unit is configured to generate a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent.

[0027] The first sending unit is used to send the downlink signal to the terminal device.

[0028] According to a fifth aspect of the present disclosure, a second signal processing device is provided, comprising: a first determining unit, a reporting unit, and a second receiving unit.

[0029] The first determination unit is used to determine the first indication information based on the variable antenna of the terminal device; wherein the first indication information is used to instruct the network device to configure a demodulation reference signal for the terminal device, and the first indication information includes at least the insertion method of the demodulation reference signal.

[0030] The reporting unit is configured to report the first indication information to the network device.

[0031] The second receiving unit is configured to receive a downlink signal sent by the network device; wherein the downlink signal includes: a demodulation reference signal and data to be sent.

[0032] According to a sixth aspect of the present disclosure, a first signal processing apparatus is provided, comprising: a first receiving unit and a configuration unit. The first receiving unit is configured to receive first indication information reported by a terminal device. The configuration unit is configured to configure a demodulation reference signal for the terminal device based on the first indication information.

[0033] According to a seventh aspect of the present disclosure, a signal processing system is provided, comprising at least: a terminal device and a network device communicating based on a multiple-input multiple-output (MIMO) communication system. The network device is configured to implement the steps of the signal processing method described in the first or third aspect above; and the terminal device is configured to implement the steps of the signal processing method described in the second aspect above.

[0034] According to an eighth aspect of the present disclosure, a storage medium is provided, on which a signal processing program is stored. When the signal processing program is executed, it is used to implement the steps of the signal processing method as described in any one of the above items.

[0035] According to a ninth aspect of the present disclosure, a computer program product is provided, comprising a computer program, which implements the steps of any one of the above signal processing methods when executed by a processor.

[0036] In the technical solution provided by the present disclosure, after the terminal device determines the first indication information based on the variable antenna of the terminal device, it sends the first indication information to the network device. After the network device receives the first indication information reported by the terminal device, it configures the demodulation parameter signal for the terminal device based on the first indication information, and generates a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent, and finally sends the downlink signal to the terminal device so that the terminal device receives the downlink signal. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that the demodulation performance of the receiving end is deteriorated due to the easy generation of ICI when the antenna switching speed of the terminal is slow during downlink transmission in the current MIMO communication system. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1 is a flow chart of a signal processing method according to an embodiment of the present disclosure.

[0038] FIG2 is a second flow chart of a signal processing method provided by an embodiment of the present disclosure.

[0039] FIG3 is a third flow chart of a signal processing method provided by an embodiment of the present disclosure.

[0040] FIG4 is a fourth flow chart of a signal processing method provided by an embodiment of the present disclosure.

[0041] FIG5 is a schematic diagram of a communication system structure of a terminal provided by an embodiment of the present disclosure.

[0042] FIG6 is a schematic diagram of switching of antenna characteristics at different sampling points provided by an embodiment of the present disclosure.

[0043] FIG7 is a first schematic diagram of a layout of a demodulation reference signal provided by an embodiment of the present disclosure.

[0044] FIG8 is a second schematic diagram of a layout of a demodulation reference signal provided by an embodiment of the present disclosure.

[0045] FIG9 is a schematic diagram of an implementation flow of equivalent channel determination provided by an embodiment of the present disclosure.

[0046] FIG10 is a schematic diagram of an implementation flow of ICI estimation provided by an embodiment of the present disclosure.

[0047] FIG11 is a third schematic diagram of a layout of a demodulation reference signal provided by an embodiment of the present disclosure.

[0048] FIG12 is a fourth schematic diagram of a layout of a demodulation reference signal provided in an embodiment of the present disclosure.

[0049] FIG13 is a schematic structural diagram of a first signal processing device provided in an embodiment of the present disclosure.

[0050] FIG14 is a schematic structural diagram of a second signal processing device provided in an embodiment of the present disclosure.

[0051] FIG15 is a schematic structural diagram of a signal processing system provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] The antenna characteristics that change rapidly within a symbol period in a MIMO communication system include but are not limited to the beam of the terminal. For example, the antenna characteristics may include but are not limited to the phase of the analog phase shifter (i.e., the analog beam), array characteristics (such as the impedance / loading of the antenna, the characteristics of the smart reflective surface), angular position (such as the rotation / movement of the antenna array), etc.

[0053] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present disclosure.

[0054] An embodiment of the present disclosure provides a signal processing method, as shown in FIG1 , which is applied to a network device and includes the following steps:

[0055] Step 101: Receive first indication information reported by a terminal device.

[0056] In the embodiments of the present disclosure, a network device may be a device capable of managing the transmission and reception of communication signals, such as a base station. A terminal device may be a device capable of transmitting and receiving data using a communication network, such as an intelligent mobile terminal device, such as a smartphone or a smart car. The terminal device generates first indication information for instructing the network device to configure a demodulation reference signal for the terminal device, and the network device receives the first indication information reported by the terminal device.

[0057] Step 102: Based on the first indication information, configure a demodulation reference signal for the terminal device.

[0058] In an embodiment of the present disclosure, the network device parses the received first indication information, and then performs an operation of configuring a corresponding demodulation reference signal for the terminal device according to the first indication information.

[0059] Step 103: Generate a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent.

[0060] In the disclosed embodiment, the data to be transmitted may be generated by the network device, or may be data information sent by other data terminals received by the network device for transmission to the terminal device. The network device processes the demodulation reference signal and the data to be transmitted according to the first indication information to generate a downlink signal to be sent to the terminal device.

[0061] Step 104: Send a downlink signal to the terminal device.

[0062] In the embodiment of the present disclosure, the network device sends a downlink signal to the terminal device through the communication method and communication link determined between the network device and the terminal device.

[0063] In another embodiment of the present disclosure, a signal processing method applied to a network device includes steps 101 and 102, but does not include steps 103 and 104. This signal processing method can also address the aforementioned technical issue: "During downlink transmission in current MIMO communication systems, ICI is easily generated due to slow antenna switching speeds at the terminal, resulting in poor demodulation performance at the receiving end." It can also effectively reduce the generation of ICI, improve demodulation performance at the receiving end, and mitigate the impact of ICI on the downlink channel.

[0064] According to the signal processing method provided by the embodiment of the present disclosure, after the network device receives the first indication information reported by the terminal device, it configures a demodulation parameter signal for the terminal device based on the first indication information, and generates a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent, and finally sends the downlink signal to the terminal device so that the terminal device receives the downlink signal. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that the demodulation performance of the receiving end is deteriorated due to the easy generation of ICI when the antenna switching speed of the terminal is slow during downlink transmission in the current MIMO communication system. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel.

[0065] Based on the foregoing embodiments, an embodiment of the present disclosure provides a signal processing method, as shown in FIG2 . The method is applied to a terminal device and includes the following steps:

[0066] Step 201: Determine first indication information based on a variable antenna of a terminal device.

[0067] In an embodiment of the present disclosure, the first indication information is used to request the network device to configure a demodulation reference signal for the terminal device, and the first indication information at least includes an insertion method of the demodulation reference signal.

[0068] In an embodiment of the present disclosure, the terminal device determines the variable antenna set by itself, and determines that the network device needs to configure a demodulation reference signal based on the antenna characteristic parameters of the variable antenna, and determines the insertion method of the configured demodulation reference signal in the transmitted downlink signal. In this way, the terminal device generates a first indication information including an insertion method of the demodulation reference signal, and is used to request configuration of a demodulation reference signal for the terminal device.

[0069] Step 202: Report first indication information to the network device.

[0070] In the embodiment of the present disclosure, after generating the first indication information, the terminal device reports the first indication information to the network device at a corresponding time according to the communication configuration between the pre-network devices.

[0071] Step 203: Receive a downlink signal sent by the network device.

[0072] In the embodiment of the present disclosure, the downlink signal includes: a demodulation reference signal and data to be sent.

[0073] In an embodiment of the present disclosure, a downlink signal sent by a network device is received, wherein a demodulation reference signal is inserted into the downlink signal in an insertion manner indicated by a terminal device. In this way, after receiving the downlink signal, the terminal device can decode the downlink signal according to a data decoding method corresponding to the insertion method, and after obtaining the demodulation reference signal, demodulate the received data to obtain the final data.

[0074] According to the signal processing method provided by the embodiment of the present disclosure, after the terminal device determines the first indication information based on the variable antenna of the terminal device, it sends the first indication information to the network device, and receives the downlink signal generated by the network device based on the first indication information, the demodulation reference signal configured for the terminal device based on the first indication information, and the data to be sent. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that the demodulation performance of the receiving end is deteriorated due to the easy generation of ICI when the antenna switching speed of the terminal is slow during downlink transmission in the current MIMO communication system. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel.

[0075] Based on the above embodiments, the present disclosure provides a signal processing method. Referring to FIG3 , the method includes the following steps:

[0076] Step 301: The terminal device determines first indication information based on a variable antenna of the terminal device.

[0077] In an embodiment of the present disclosure, the first indication information is used to request the network device to configure a demodulation reference signal for the terminal device, and the first indication information at least includes an insertion method of the demodulation reference signal.

[0078] In the embodiment of the present disclosure, the terminal device is a mobile communication device and the network device is a base station. The smartphone has a MIMO communication system, which can be implemented by setting a variable antenna. In the embodiment of the present disclosure, the variable antenna refers to multiple antennas in the terminal device that jointly generate multiple beam states or multiple beam patterns. The smartphone determines the antenna characteristic parameters of its own variable antenna, analyzes the antenna characteristic parameters, and generates corresponding first indication information.

[0079] Step 302: The terminal device reports first indication information to the network device.

[0080] Step 303: The network device receives the first indication information reported by the terminal device.

[0081] Step 304: The network device configures a demodulation reference signal for the terminal device based on the first indication information.

[0082] In an embodiment of the present disclosure, a base station configures multiple groups of demodulation reference signals for the mobile phone communication device according to the first indication information reported by the mobile phone communication device.

[0083] Step 305: The network device generates a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent.

[0084] In the embodiment of the present disclosure, the base station processes the demodulation reference signal accordingly according to the insertion manner indicated in the first indication information, and generates a downlink signal with the data to be sent.

[0085] Step 306: The network device sends a downlink signal to the terminal device.

[0086] The downlink signal may be in one of the following forms: an MIB signaling method or a radio resource control protocol RRC signaling method.

[0087] In the embodiment of the present disclosure, the network device may use MIB signaling or RRC signaling to send downlink signals to the terminal device.

[0088] Step 307: The terminal device receives the downlink signal sent by the network device.

[0089] In the embodiment of the present disclosure, the downlink signal includes: a demodulation reference signal and data to be sent.

[0090] Based on the above embodiment, in other embodiments of the present disclosure, referring to FIG. 4 , the network device is further configured to perform steps 308 to 309:

[0091] Step 308: The network device determines distribution information of the demodulation reference signal.

[0092] In the embodiment of the present disclosure, the distribution information includes time domain distribution information of the demodulation reference signal, and the time domain distribution information at least includes a starting symbol of the demodulation reference signal in a time slot and an occupied symbol length.

[0093] In an embodiment of the present disclosure, after generating a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent, the network device determines the distribution information of the demodulation reference signal in the downlink signal, that is, the time domain distribution information of the demodulation reference signal in the downlink signal, and obtains the starting symbol of the demodulation reference signal in the time slot and the symbol length occupied by the demodulation.

[0094] Step 309: The network device sends second indication information including distribution information to the terminal device.

[0095] In an embodiment of the present disclosure, the network device generates second indication information based on the distribution information of the demodulation reference signal, and sends the second indication information to the terminal device. The second indication information can also be sent using MIB signaling, RRC signaling, etc.

[0096] In the embodiment of the present disclosure, step 308 and step 309 are performed after step 305 . Step 309 can be performed simultaneously with step 306 , or can be performed after or before step 306 .

[0097] Correspondingly, the terminal device executes step 310:

[0098] Step 310: The terminal device receives the second indication information sent by the network device.

[0099] In the embodiment of the present disclosure, the second indication information includes distribution information of a demodulation reference signal. The second indication information may be in one of the following forms: MIB signaling or RRC signaling.

[0100] Based on the above embodiment, in other embodiments of the present disclosure, step 304 may be implemented by step 304a or step 304b:

[0101] Step 304a, in response to the first indication information indicating that the insertion method of the demodulation reference signal is the decoupling processing method, the network device obtains the demodulation reference signal by configuring the terminal device with reference signals in different communication symbols from the data, and the number is the same as the antenna characteristic data of the variable antenna.

[0102] In an embodiment of the present disclosure, when the first indication information indicates that the insertion method of the demodulation reference signal is a decoupling processing method, the network device configures the reference signal and the transmitted data for the terminal device on different communication symbols, and the number of configured reference signals is the same as the antenna characteristic data of the variable antenna, that is, the number of antennas, to obtain the demodulation reference signal.

[0103] Step 304b: In response to the first indication information indicating that the insertion mode is the coupled processing mode, the network device obtains a demodulation reference signal by configuring a reference signal in the same communication symbol as the data for the terminal device.

[0104] In an embodiment of the present disclosure, when the first indication information indicates that the insertion method of the demodulation reference signal is a coupling processing method, the network device obtains the demodulation reference signal by configuring the reference signal at the symbol where the transmitted data is located, and the number of configured reference signals is the same as the number of beams transmitted by the terminal device.

[0105] Based on the foregoing embodiment, in other embodiments of the present disclosure, referring to FIG. 4 , after the terminal device executes step 310, the terminal device is further configured to execute step 311:

[0106] Step 311: The terminal device demodulates the downlink signal based on the distribution information and the insertion method to obtain demodulated data.

[0107] In an embodiment of the present disclosure, the terminal device demodulates the received downlink signal according to the distribution information indicated by the network device and the insertion method of the demodulation reference signal determined according to the antenna characteristic parameters of its own antenna, thereby obtaining corresponding demodulation data between the network device and the terminal device. The demodulation data can be used to represent the channel-related quality parameters between the network device and the terminal device, and can also be the specific data content sent by the network device to the terminal device, that is, the data to be sent.

[0108] Based on the above embodiment, in other embodiments of the present disclosure, step 301 can be implemented by steps 301a to 301b:

[0109] Step 301a: The terminal device determines the antenna switching time required for the variable antenna to perform antenna switching.

[0110] In the embodiment of the present disclosure, antenna switching by the terminal device refers to the switching of the beam state or beam pattern jointly generated by multiple antennas of the terminal device (for example, switching from one beam pattern to another beam pattern), and then the terminal device counts the time required to implement the hardware switching from the start of antenna switching to the completion of switching to obtain the antenna switching time.

[0111] Step 301b: The terminal device generates first indication information based on the antenna switching duration.

[0112] In an embodiment of the present disclosure, the terminal device determines whether it is necessary to configure a reference demodulation reference signal and a method for inserting the reference demodulation signal based on an analysis of the antenna switching duration, thereby obtaining the first indication information.

[0113] Based on the above embodiment, in other embodiments of the present disclosure, step 301b can be implemented by steps a11 to a12, or steps a11 and a13:

[0114] Step a11: The terminal device determines a switching duration threshold.

[0115] In the embodiment of the present disclosure, the terminal device determines the corresponding switching duration threshold based on the antenna characteristic data of its own variable antenna. The switching duration threshold may be different for different terminal devices.

[0116] Step a12: In response to the antenna switching duration being greater than the switching duration threshold, the terminal device generates first indication information indicating that the insertion mode is a decoupling processing mode.

[0117] In an embodiment of the present disclosure, when the actual antenna switching duration obtained by statistics of the terminal device is greater than the corresponding switching duration threshold, the terminal device determines that a demodulation reference signal needs to be configured, and the insertion method of the configured demodulation reference signal is a decoupling processing method, thereby obtaining the first indication information.

[0118] Step a13: In response to the antenna switching duration being less than or equal to the switching duration threshold, the terminal device generates first indication information indicating that the insertion mode is a coupling processing mode.

[0119] In an embodiment of the present disclosure, when the antenna switching duration is less than or equal to the switching duration threshold, the terminal device determines that a demodulation reference signal needs to be configured, and the insertion method of the demodulation reference signal is a coupling processing method, thereby obtaining the first indication information.

[0120] Based on the above embodiment, in other embodiments of the present disclosure, step a11 can be implemented by steps a111 to a112:

[0121] Step a111: The terminal device determines the antenna characteristic data of the variable antenna, the number of continuous sampling points occupied by each antenna characteristic included in the variable antenna, the upsampling multiple, and the system sampling interval.

[0122] In the embodiment of the present disclosure, parameters such as the antenna characteristic data of the variable antenna, the number of continuous sampling points occupied by each antenna characteristic included in the variable antenna, the upsampling multiple and the system sampling interval can all be pre-configured in the terminal device, or can be measured by the terminal device according to actual conditions.

[0123] Step a112: The terminal device determines the switching duration threshold based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple, and the system sampling interval.

[0124] In an embodiment of the present disclosure, the terminal device calculates and analyzes the determined antenna characteristic data, the number of continuous sampling points, the upsampling multiple, and the system sampling interval to obtain a switching duration threshold.

[0125] Based on the above embodiment, in other embodiments of the present disclosure, step a112 can be implemented by steps b11 to b13:

[0126] Step b11: The terminal device calculates the product of the upsampling multiple and the system sampling interval to obtain a first value.

[0127] In the embodiment of the present disclosure, the first value=up-sampling multiple*system sampling interval.

[0128] Step b12: The terminal device accumulates the number of consecutive sampling points occupied by each antenna characteristic included in the variable antenna to obtain a second value.

[0129] In the embodiment of the present disclosure, when the number of variable antenna characteristics of the terminal device is N f When the second value = (the number of continuous sampling points occupied by antenna characteristic 1 + the number of continuous sampling points occupied by antenna characteristic 2 + ... + antenna characteristic N f number of consecutive sampling points occupied).

[0130] Step b13: The terminal device calculates the ratio of the first value to the second value to obtain the switching duration threshold.

[0131] In the embodiment of the present disclosure, the switching duration threshold=first value / second value=(up-sampling multiple*system sampling interval) / second value.

[0132] Based on the above embodiment, in other embodiments of the present disclosure, when the insertion mode is a decoupling processing mode, step 311 can be implemented by step 311a or step 311b:

[0133] Step 311a: In response to the distribution information indicating that the communication symbol included in the downlink signal is occupied by the data to be sent, within the symbol period corresponding to the communication symbol, the antenna characteristics of the variable antenna are switched, and the communication symbol is processed using a decoupling processing method to obtain the data to be sent.

[0134] In the disclosed embodiment, when a communication symbol indicated in the distribution information is occupied by data to be transmitted, the antenna characteristics of the variable antenna are switched within the symbol period corresponding to the communication symbol to decouple the data content included in the communication symbol and obtain the data to be transmitted. The antenna characteristics of the variable antenna can be the antenna characteristics of multiple antennas.

[0135] Step 311b: In response to the distribution information indicating that the communication symbol is occupied by the demodulation reference signal, within the symbol period, the communication symbol is processed using a decoupling processing method based on an antenna characteristic of the variable antenna to obtain the antenna equivalent channel and inter-subcarrier interference ICI.

[0136] In the embodiment of the present disclosure, the demodulated data includes data to be transmitted, or antenna equivalent channel and inter-subcarrier interference (ICI).

[0137] In the embodiment of the present disclosure, when the communication symbol indicated in the downlink signal distribution information is occupied by the demodulation reference signal, an antenna characteristic of the variable antenna is determined within the symbol period, and the communication symbol is decoupled to obtain the antenna equivalent channel and ICI corresponding to the antenna. Among them, an antenna characteristic of the variable antenna refers to any one of the multiple antenna characteristics of the variable antenna in the terminal device (for example, N f In this way, the obtained antenna equivalent channel is also the antenna equivalent channel of the antenna corresponding to the demodulation reference signal.

[0138] Based on the above embodiments, the present disclosure provides a signal processing method, which implements a downlink demodulation reference signal design. The basic concept can be: whether the switching time of the terminal is less than the switching time threshold T according to its own antenna characteristics th , to send switching capability indication information for the demodulation reference signal to the base station, which is used to indicate whether to configure the terminal for the demodulation reference signal. The base station configures the corresponding demodulation reference signal for the terminal based on the switching capability indication information reported by the terminal. Finally, when the terminal receives the corresponding downlink signal, it uses the terminal's multiple antenna characteristics to process it separately to complete the equivalent channel and ICI estimation.

[0139] Among them, the switching time threshold T of antenna switching th The number N of variable antenna characteristics of the terminal can be f , the number of sampling points continuously occupied by each antenna characteristic L s and related system parameters such as upsampling factor U s and sampling period T s Determine together. For example, the formula T th =(U s *T s ) / L s .

[0140] Whether the switching time of the terminal is less than the switching time threshold T according to its own antenna characteristics th , to send switching capability indication information for whether to configure a demodulation reference signal for the terminal to the base station:

[0141] (1) When the terminal hardware switching time Tshift Exceeding the threshold value T th , that is, T shift >T th When the switching speed of the terminal antenna characteristics is slow, it will change the ICI. At this time, the terminal sends a switching capability indication message to the base station to enable the base station to configure multiple groups of demodulation reference signals for decoupling processing with data. The number of demodulation reference signals is equal to the number of variable antenna characteristics N of the terminal. f Similarly, the base station configures N for the terminal f After a demodulation reference signal is configured, the terminal can also be notified of the time domain distribution information of the configured demodulation reference signal using relevant signaling (such as MIB, RRC, etc.). Specifically, the time domain distribution information of the demodulation reference signal includes information such as the starting symbol of the pilot in the time slot (MIB) and the occupied symbol length (DMRS-DownlinkConfig).

[0142] Correspondingly, after receiving the time domain distribution information sent by the base station, the terminal decouples the demodulation reference signal from the data, including: for the symbols occupied by the data (that is, the aforementioned "communication symbols included in the downlink signal are occupied by the data to be sent"), a variable antenna characteristic is used for switching processing within the symbol period; for the symbols where the demodulation reference signal is located (that is, the aforementioned "communication symbols included in the downlink signal are occupied by the demodulation reference signal"), an antenna characteristic (that is, N f Any one of the antenna characteristics) is used to process the symbol and obtain the equivalent channel corresponding to the antenna characteristics.

[0143] (2) When the terminal hardware switching speed time T shift Below the threshold value T th , that is, T shift ≤T th When , it indicates that the antenna characteristics of the terminal switch quickly and no ICI is generated. At this time, the switching capability indication information is sent to the base station, indicating that the demodulation reference signal can be configured back to the data coupling mode.

[0144] Exemplarily, an embodiment of the present disclosure provides a terminal communication structure for MIMO downlink transmission with two different antenna characteristics. Referring to Figure 5, the terminal can achieve two different antenna characteristics (i.e., beam 1 and beam 2) by adjusting the phase of the phase shifter. By switching these two beams within the symbol period after upsampling, it is possible to receive two data streams using one RF channel.

[0145] Among them, upsampling can be achieved by filling zeros in the high-frequency part of the signal and interpolating the signal in the time domain, that is, increasing the time domain resolution. In other words: if the upsampling multiple is U s , then the original time domain sampling points will be interpolated as (U s-1) points, the system sampling frequency after upsampling is Fs = U s *NFFT*SCS, where NFFT and SCS represent the number of Fast Fourier Transform (FFT) points and subcarrier spacing, respectively. Accordingly, the system sampling interval is T s =1 / Fs. In this way, in order to avoid ICI interference, the terminal needs to s Complete N sampling cycles f The change of antenna characteristics, that is, satisfying: T shift *L s ≤U s *T s . T shift with U s *T s The relationship between them can be shown in FIG6 .

[0146] For example, in the new radio / new air interface (NR) with 10MHz bandwidth and 30kHz subcarrier spacing, the corresponding number of resource blocks (RBs) is 24 and the number of FFT points is 512. s =2, the system sampling frequency Fs = U s *NFFT*SCS=30.72MHz, sampling period T s =1 / Fs=32.55ns, assuming the number of antenna characteristics of the terminal is N f =2, each antenna characteristic occupies L s = 1 sampling point, that is, the antenna characteristics are switched according to the odd and even position sampling points, then the terminal switching speed needs to meet: T shift ≤T th =(U s *T s ) / L s =32.55ns.

[0147] The transition time of RF switches is generally in the range of tens to hundreds of nanoseconds. When the switching speed is too slow, that is, T shift >T th , the terminal cannot be used in U s If antenna characteristics are switched within a sampling period, ICI will be generated, affecting data transmission. In this case, the terminal determines that the base station needs to configure multiple sets of demodulation reference signals so that the terminal can process them separately using different antenna characteristics to achieve ICI channel estimation.

[0148] For example, based on the terminal shown in Figure 5, the terminal indicates to the base station that a demodulation reference signal needs to be configured for the terminal. Correspondingly, referring to Figure 7, the base station configures two sets of demodulation reference signals for the terminal, located on different symbols within the time slot (i.e., sym3 and sym4), so that the terminal can process them using beam 1 and beam 2, respectively. For other symbols carrying data, the terminal switches between the two beams at different sampling points in the symbol period to achieve transmission channel expansion.

[0149] Under conditions such as high-speed movement, the channel time variation is more obvious, which affects the accuracy of channel estimation. Therefore, we can refer to the design in NR and adopt a design that combines pre-addition and additional demodulation reference signals, and set several additional reference signals for one of the antenna characteristics. For example, when ICI exists, the structural diagram of the specific use of pre-addition and additional demodulation reference signals can be shown in Figure 8, where pre-addition data and DM-RS and additional DM-RS are configured at the positions of sym 3 and sym 11 for beam 1, respectively, and pre-addition DM-RS and additional DM-RS are configured at the positions of sym 4 and sym 12 for beam 2.

[0150] Based on the above embodiments, the embodiments of the present disclosure also provide a method for implementing equivalent channel estimation. Based on the demodulation reference signal shown in FIG7 , Layer 1 is used as an example for explanation. The terminal obtains the equivalent channels H1_bf1 and H1_bf2 of beam 1 and beam 2 respectively according to the pilot signals on sym3 and sym4, and then calculates the equivalent channels according to the beam switching method. Specifically, taking beam 1 and beam 2 acting on the first and second half symbols respectively as an example, H1_bf1 and H1_bf2 are first subjected to an inverse fast Fourier transform (IFFT) to obtain time domain channel coefficients h1_bf1 and h2_bf2. The first half of h1_bf1 and the second half of h2_bf2 are then concatenated and FFT transformed to obtain the frequency domain equivalent channel H1_effe of Layer 1. Similarly, the equivalent channel H2_effe corresponding to Layer 2 can be obtained. The corresponding specific implementation process can be shown in FIG9 .

[0151] Correspondingly, the embodiment of the present disclosure also provides a method for implementing ICI estimation, as shown in FIG10 . Beam 1 and beam 2 in Layer 1 and Layer 2 act on the first and second half of the symbol, respectively. For beam 1 of Layer 1 and beam 1 of Layer 2, H1_bf1 and H2_bf1 are first subjected to IFFT processing to obtain time domain channel coefficients h1_bf1 and h2_bf1, and then the first half of h1_bf1 and the first half of h2_bf1 are subjected to FFT transformation respectively. The first transformation results of h1_bf1 and h2_bf1 obtained after the FFT transformation are subjected to ICI analysis to obtain the ICI of beam 1. For beam 2 of Layer 1 and beam 2 of Layer 2, first perform IFFT processing on H1_bf2 and H2_bf2 to obtain time domain channel coefficients h1_bf2 and h2_bf2. Then, perform FFT transform on the second half of h1_bf2 and the second half of h2_bf2, respectively. The second transform results of h1_bf2 and h2_bf2 obtained after the FFT transform are subjected to ICI analysis to obtain the ICI of beam 2.

[0152] For example, when the switching time of the terminal satisfies T shift ≤T th , that is, the terminal can be in U s The antenna characteristic switching is completed within a sampling period, and the ICI generated by the antenna characteristic switching can be ignored. At this time, the terminal sends a switching capability indication information to the base station, indicating that the base station can configure the reference signal in a fallback manner, that is, the demodulation reference signal is coupled with the data in a data coupling data manner. Referring to the distribution diagram of the demodulation reference signal when ICI is ignored in Figure 11 and the distribution diagram of the pre-data and additional demodulation reference signal when ICI is ignored in Figure 12, the terminal uses the variable antenna characteristics to process the symbols where the demodulation reference signal is located, which is consistent with the way the symbols where the data is located are processed. Since the antenna characteristic switching does not cause ICI interference in this case, the equivalent channel can be directly obtained through the demodulation reference signal to complete data demodulation.

[0153] It should be noted that the above-mentioned equivalent channel method and ICI estimation method are only examples for illustration, and specific implementation methods may refer to other implementation methods, which will not be described in detail here.

[0154] In this way, the base station can flexibly configure the coupling relationship between the demodulation reference signal and the data based on the indication information reported by the terminal, which facilitates the terminal to perform channel estimation when the antenna characteristics are variable, and is conducive to improving the downlink transmission / demodulation performance of future MIMO systems.

[0155] It should be noted that, for the description of the same steps and contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0156] In the signal processing method provided in the embodiment of the present disclosure, after the terminal device determines the first indication information based on the variable antenna of the terminal device, it sends the first indication information to the network device, and receives the downlink signal generated by the network device based on the first indication information, the demodulation reference signal configured for the terminal device based on the first indication information, and the data to be sent. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that the demodulation performance of the receiving end is deteriorated due to the easy generation of ICI when the antenna switching speed of the terminal is slow during downlink transmission in the current MIMO communication system. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel.

[0157] Based on the foregoing embodiments, an embodiment of the present disclosure provides a first signal processing device, which can be applied to the signal processing method provided in the embodiments corresponding to Figures 1 and 3 to 4. As shown in Figure 13, the first signal processing device 4 may include: a first receiving unit 41, a configuration unit 42, a generation unit 43 and a first sending unit 44.

[0158] The first receiving unit 41 is configured to receive first indication information reported by a terminal device.

[0159] The configuration unit 42 is used to configure a demodulation reference signal for the terminal device based on the first indication information.

[0160] The generating unit 43 is configured to generate a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent.

[0161] The first sending unit 44 is configured to send a downlink signal to a terminal device.

[0162] In another embodiment of the present disclosure, a first signal processing device applied to a network device may include: a first receiving unit 41 and a configuration unit 42, but does not include a generation unit 43 and a first sending unit 44. This first signal processing device can also solve the aforementioned technical problem: "During downlink transmission in current MIMO communication systems, ICI is easily generated due to slow antenna switching speeds at terminals, resulting in poor demodulation performance at the receiving end." The device can effectively reduce the generation of ICI, improve demodulation performance at the receiving end, and reduce the impact of ICI on downlink channels.

[0163] In other embodiments of the present disclosure, the first signal processing apparatus further includes: a second determining unit, configured to determine distribution information of a demodulation reference signal; and a first sending unit, further configured to send second indication information including the distribution information to the terminal device.

[0164] In other embodiments of the present disclosure, the configuration unit 42 is specifically configured to implement the following steps:

[0165] In response to the first indication information indicating that the insertion mode of the demodulation reference signal is a decoupled processing mode, the demodulation reference signal is obtained by configuring the terminal device with reference signals in different communication symbols from the data, and the number of the reference signals is the same as the variable antenna characteristic data;

[0166] In response to the first indication information indicating that the insertion mode is the coupling processing mode, a demodulation reference signal is obtained by configuring a reference signal in the same communication symbol as the data for the terminal device.

[0167] In other embodiments of the present disclosure, the second indication information may be in one of the following forms: a master message block signaling method, or a radio resource control protocol RRC signaling method.

[0168] In other embodiments of the present disclosure, the distribution information includes time domain distribution information of the demodulation reference signal, and the time domain distribution information at least includes a starting symbol and an occupied symbol length of the demodulation reference signal in a time slot.

[0169] It should be noted that the specific implementation process of the interaction between the units and modules in this embodiment can refer to the implementation process of the signal processing method provided in the embodiments corresponding to Figures 1 and 3 to 4, and will not be repeated here.

[0170] In the first signal processing device provided in the embodiment of the present disclosure, after receiving the first indication information reported by the terminal device through the network device, a demodulation parameter signal is configured for the terminal device based on the first indication information, and a downlink signal is generated based on the first indication information, the demodulation reference signal and the data to be sent, and finally the downlink signal is sent to the terminal device so that the terminal device receives the downlink signal. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that the demodulation performance of the receiving end is deteriorated due to the easy generation of ICI when the antenna switching speed of the terminal is slow during downlink transmission in the current MIMO communication system. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel.

[0171] Based on the foregoing embodiments, an embodiment of the present disclosure provides a second signal processing device, which can be applied to the signal processing method provided in the embodiments corresponding to Figures 2 to 4. As shown in Figure 14, the second signal processing device 5 may include: a first determination unit 51, a reporting unit 52 and a second receiving unit 53.

[0172] The first determination unit 51 is used to determine first indication information based on the variable antenna of the terminal device; wherein the first indication information is used to instruct the network device to configure a demodulation reference signal for the terminal device, and the first indication information at least includes an insertion method of the demodulation reference signal.

[0173] The reporting unit 52 is configured to report the first indication information to the network device.

[0174] The second receiving unit 53 is configured to receive a downlink signal sent by a network device; wherein the downlink signal includes a demodulation reference signal and data to be sent.

[0175] In other embodiments of the present disclosure, the second receiving unit is further configured to receive second indication information sent by the network device; wherein the second indication information includes distribution information of a demodulation reference signal.

[0176] In other embodiments of the present disclosure, the second signal processing device further includes:

[0177] The processing unit is used to demodulate the downlink signal based on the distribution information and the insertion method to obtain demodulated data.

[0178] In other embodiments of the present disclosure, the first determining unit includes: a first determining module and a generating module. The first determining module is configured to determine an antenna switching duration required for the variable antenna to perform antenna switching. The generating module is configured to generate first indication information based on the antenna switching duration.

[0179] In other embodiments of the present disclosure, the generation module is specifically used to implement the following steps: determining a switching duration threshold; in response to the antenna switching duration being greater than the switching duration threshold, generating first indication information indicating that the insertion method is a decoupling processing method; in response to the antenna switching duration being less than or equal to the switching duration threshold, generating first indication information indicating that the insertion method is a coupling processing method.

[0180] In other embodiments of the present disclosure, when the generation module implements the step of determining the switching time threshold, it can be achieved through the following steps: determining the antenna characteristic data of the variable antenna, the number of continuous sampling points occupied by each antenna included in the variable antenna, the upsampling multiple and the system sampling interval; and determining the switching time threshold based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple and the system sampling interval.

[0181] In other embodiments of the present disclosure, when the switching duration threshold is determined based on antenna characteristic data, the number of continuous sampling points, the upsampling multiple and the system sampling interval, the generation module can be implemented through the following steps: calculating the product of the upsampling multiple and the system sampling interval to obtain a first value; accumulating the number of continuous sampling points occupied by each antenna characteristic included in the variable antenna to obtain a second value; and calculating the ratio of the first value to the second value to obtain the switching duration threshold.

[0182] In other embodiments of the present disclosure, when the insertion method is a decoupling processing method, the processing unit is specifically used to implement the following steps: in response to the distribution information that the communication symbol included in the downlink signal is occupied by the data to be sent, within the symbol period corresponding to the communication symbol, switching is performed based on the antenna characteristics of the variable antenna, and the communication symbol is processed using a decoupling processing method to obtain the data to be sent; or in response to the distribution information that the communication symbol is occupied by the demodulation reference signal, within the symbol period, a decoupling processing method is used to process the communication symbol based on an antenna characteristic of the variable antenna to obtain the antenna equivalent channel and inter-subcarrier interference ICI; the demodulated data includes the data to be sent, or the antenna equivalent channel and ICI.

[0183] It should be noted that the specific implementation process of the interaction between the units and modules in this embodiment can refer to the implementation process of the signal processing method provided in the corresponding embodiments of Figures 2 to 4, and will not be repeated here.

[0184] In the second signal processing device provided in the embodiment of the present disclosure, after determining the first indication information based on the variable antenna of the terminal device, the terminal device sends the first indication information to the network device, and receives the downlink signal generated by the network device based on the first indication information, the demodulation reference signal configured for the terminal device based on the first indication information, and the data to be sent. In this way, the terminal device determines to indicate to the network device that the network device needs to configure a demodulation reference signal for it based on the characteristics of its own antenna. In this way, the terminal device can directly perform corresponding demodulation processing according to the demodulation reference signal configured by the network device, thereby solving the problem that when the current MIMO communication system is transmitting downlink, ICI is easily generated when the antenna switching speed of the terminal is slow, resulting in poor demodulation performance of the receiving end. The present disclosure proposes a transmission signal processing method based on the downlink transmission of the MIMO communication system, which effectively reduces the generation of ICI, thereby improving the demodulation performance of the receiving end and reducing the impact of ICI on the downlink channel.

[0185] Based on the aforementioned embodiments, an embodiment of the present disclosure provides a signal processing system, which can be applied to the signal processing method provided in the embodiments corresponding to Figures 1 to 4. As shown in Figure 15, the signal processing system 6 may include: a terminal device 61 and a network device 62 based on a multiple-input multiple-output MIMO communication system.

[0186] The network device 62 is used to implement the implementation process of the signal processing method provided in the embodiments corresponding to FIG. 1 and FIG. 3 to FIG. 4 , which will not be described in detail here.

[0187] The terminal device 61 is used to implement the implementation process of the signal processing method provided in the embodiments corresponding to Figures 2 to 4, which will not be described in detail here.

[0188] Based on the foregoing embodiments, an embodiment of the present disclosure provides a computer-readable storage medium, referred to as a storage medium for short, which stores one or more programs, and the one or more programs can be executed by one or more processors to implement the implementation process in the signal processing method provided with reference to Figures 1 and 3 to 4, or the embodiments corresponding to Figures 2 to 4, which will not be repeated here.

[0189] Based on the aforementioned embodiments, the embodiments of the present disclosure further provide a computer program product, including a computer program, which can be executed by a processor of a network device or a terminal device to complete any of the aforementioned method steps.

[0190] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0191] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0192] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0193] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0194] The above description is merely a preferred embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure.

Claims

1. A signal processing method, applied to a network device, comprising: Receiving first indication information reported by a terminal device; Based on the first indication information, configure a demodulation reference signal for the terminal device; generating a downlink signal based on the first indication information, the demodulation reference signal, and the data to be sent; as well as Send the downlink signal to the terminal device.

2. The method according to claim 1, further comprising: determining distribution information of the demodulation reference signal; as well as Sending second indication information including the distribution information to the terminal device.

3. The method according to claim 1, wherein The configuring a demodulation reference signal for the terminal device based on the first indication information includes: In response to the first indication information indicating that the insertion mode of the demodulation reference signal is a decoupling processing mode, the demodulation reference signal is obtained by configuring a reference signal in a different communication symbol from the data for the terminal device, and the number of the reference signal is the same as the variable antenna characteristic data; or In response to the first indication information indicating that the insertion mode is a coupled processing mode, the demodulation reference signal is obtained by configuring a reference signal in the same communication symbol as the data for the terminal device.

4. The method according to claim 2, wherein: The second indication information may be in one of the following forms: a master message block signaling mode and a radio resource control signaling mode.

5. The method according to claim 2, wherein: The distribution information includes time domain distribution information of the demodulation reference signal, and the time domain distribution information at least includes a starting symbol and an occupied symbol length of the demodulation reference signal in a time slot.

6. A signal processing method, applied to a terminal device, comprising: Determining first indication information based on the variable antenna of the terminal device; wherein the first indication information is used to request a network device to configure a demodulation reference signal for the terminal device, and the first indication information includes at least an insertion method of the demodulation reference signal; reporting the first indication information to the network device; and Receive a downlink signal sent by the network device; wherein the downlink signal includes: the demodulation reference signal and data to be sent.

7. The method according to claim 6, further comprising: Second indication information sent by the network device is received, wherein the second indication information includes distribution information of the demodulation reference signal.

8. The method according to claim 7, further comprising: Based on the distribution information and the insertion method, the downlink signal is demodulated to obtain demodulated data.

9. The method according to claim 6, wherein: The determining the first indication information based on the variable antenna of the terminal device includes: Determining an antenna switching time required for the variable antenna to perform antenna switching; and The first indication information is generated based on the antenna switching duration.

10. The method according to claim 9, wherein: The generating the first indication information based on the antenna switching duration includes: Determine the switching time threshold; In response to the antenna switching duration being greater than the switching duration threshold, generating the first indication information indicating that the insertion mode is a decoupling processing mode; In response to the antenna switching duration being less than or equal to the switching duration threshold, the first indication information indicating that the insertion mode is a coupling processing mode is generated.

11. The method according to claim 10, wherein: Determining the switching duration threshold includes: Determining antenna characteristic data of the variable antenna, the number of continuous sampling points occupied by each antenna characteristic included in the variable antenna, an upsampling multiple, and a system sampling interval; and The switching duration threshold is determined based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple, and the system sampling interval.

12. The method according to claim 11, wherein The determining the switching duration threshold based on the antenna characteristic data, the number of continuous sampling points, the upsampling multiple, and the system sampling interval includes: Calculating the product of the upsampling multiple and the system sampling interval to obtain a first value; Accumulating the number of consecutive sampling points occupied by each antenna characteristic included in the variable antenna to obtain a second value; and The ratio of the first value to the second value is calculated to obtain the switching duration threshold.

13. The method according to claim 8, wherein When the insertion mode is a decoupling processing mode, demodulating the downlink signal based on the distribution information and the insertion mode to obtain demodulated data includes: In response to the distribution information indicating that a communication symbol included in the downlink signal is occupied by the data to be sent, switching is performed based on the antenna characteristics of the variable antenna within a symbol period corresponding to the communication symbol, and the communication symbol is processed using a decoupling processing manner to obtain the data to be sent; or In response to the distribution information that the communication symbol is occupied by the demodulation reference signal, within the symbol period, the communication symbol is processed using a decoupling processing method based on an antenna characteristic of the variable antenna to obtain the antenna equivalent channel and inter-subcarrier interference ICI; wherein the demodulated data includes the data to be sent, or the antenna equivalent channel and inter-subcarrier interference ICI.

14. A signal processing method, applied to a network device, comprising: Receiving first indication information reported by a terminal device; as well as Based on the first indication information, a demodulation reference signal is configured for the terminal device.

15. The method according to claim 14, further comprising: determining distribution information of the demodulation reference signal; as well as Sending second indication information including the distribution information to the terminal device.

16. The method according to claim 14, wherein The configuring a demodulation reference signal for the terminal device based on the first indication information includes: In response to the first indication information indicating that the insertion mode of the demodulation reference signal is a decoupling processing mode, the demodulation reference signal is obtained by configuring a reference signal in a different communication symbol from the data for the terminal device, and the number of the reference signal is the same as the variable antenna characteristic data; or In response to the first indication information indicating that the insertion mode is a coupled processing mode, the demodulation reference signal is obtained by configuring a reference signal in the same communication symbol as the data for the terminal device.

17. A first signal processing device, comprising: A first receiving unit, a configuration unit, a generation unit, and a first sending unit; wherein: The first receiving unit is configured to receive first indication information reported by a terminal device; The configuration unit is configured to configure a demodulation reference signal for the terminal device based on the first indication information; The generating unit is configured to generate a downlink signal based on the first indication information, the demodulation reference signal and the data to be sent; The first sending unit is used to send the downlink signal to the terminal device.

18. A second signal processing device, comprising: A first determining unit, a reporting unit, and a second receiving unit; wherein: The first determining unit is configured to determine first indication information based on the variable antenna of the terminal device; wherein the first indication information is used to instruct a network device to configure a demodulation reference signal for the terminal device, and the first indication information includes at least an insertion method of the demodulation reference signal; The reporting unit is configured to report the first indication information to the network device; The second receiving unit is configured to receive a downlink signal sent by the network device; wherein the downlink signal includes: a demodulation reference signal and data to be sent.

19. A first signal processing device, comprising: A first receiving unit and a configuration unit; wherein: The first receiving unit is configured to receive first indication information reported by a terminal device; The configuration unit is used to configure a demodulation reference signal for the terminal device based on the first indication information.

20. A signal processing system, the system comprising at least: Terminal equipment and network equipment based on multiple-input multiple-output (MIMO) communication systems; The network device is configured to implement the steps of the signal processing method according to any one of claims 1 to 5 or any one of claims 14 to 16; The terminal device is used to implement the steps of the signal processing method according to any one of claims 6 to 13.

21. A storage medium having a signal processing program stored thereon, wherein the signal processing program, when executed, is used to implement the steps of the signal processing method according to any one of claims 1 to 5, or claims 6 to 13, or claims 14 to 16.

22. A computer program product comprising a computer program, wherein When the computer program is executed by a processor, the computer program implements the steps of the signal processing method according to any one of claims 1 to 5, or claims 6 to 13, or claims 14 to 16.

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