Wireless communication method, terminal device and network device

Abstract

A wireless communication method, a terminal device and a network device, the method comprising: a terminal device receiving sounding reference signal (SRS) configuration information sent by a network device, the SRS configuration information indicating that the terminal device transmits different antenna ports of an SRS resource on a plurality of orthogonal frequency division multiplexing (OFDM) symbols respectively; according to first sending power, sending power on each antenna port of the SRS resource and / or a report value of a power headroom report (PHR) corresponding to the SRS resource are determined, and the first sending power is the minimum value in maximum sending power supported by different antenna ports of the SRS resource.

Description

Wireless communication method, terminal device and network device Technical Field

[0001] The embodiments of the present application relate to the field of communications, and specifically to a wireless communication method, terminal device, and network device. Background Art

[0002] In the New Radio (NR) system, a sounding reference signal (SRS) resource can be transmitted on multiple orthogonal frequency-division multiplexing (OFDM) symbols. For example, different antenna ports of an SRS resource can be assigned to different OFDM symbols for transmission. If the maximum transmit power supported by different antenna ports is different (for example, different antenna ports use different RF devices, resulting in different maximum transmit powers supported), the maximum transmit power that can actually be used by the terminal device to send SRS resources on different OFDM symbols is also different.

[0003] If the SRS transmit power is calculated based on the total maximum transmit power supported by the terminal device on all antenna ports as the upper limit, the calculated transmit power may be higher than the maximum transmit power that the terminal device can actually support on certain OFDM symbols, resulting in inconsistent transmit power on different OFDM symbols. On the other hand, if the SRS power headroom report (PHR) reporting value is calculated based on the maximum output power of the terminal device, the power headroom estimate may be too large, which in turn may cause the configured power control parameters of the network device to be inaccurate and fail to achieve the expected power control effect.

[0004] Therefore, how the terminal device determines the transmit power of the SRS resource and / or how to report the power headroom of the SRS resource so that the network device can perform accurate power control is an issue that needs to be solved urgently.

[0005] Summary of the Invention

[0006] The present application provides a wireless communication method, terminal device, and network device, which are conducive to ensuring that the terminal device sends SRS with appropriate power and / or the accuracy of the reported PHR.

[0007] In a first aspect, a method for wireless communication is provided, including: a terminal device receives sounding reference signal SRS configuration information sent by a network device, the SRS configuration information indicating that the terminal device transmits different antenna ports of an SRS resource on multiple orthogonal frequency division multiplexing (OFDM) symbols respectively; and determines the transmit power on each antenna port of the SRS resource according to a first transmit power, and / or the reporting value of a power margin report PHR corresponding to the SRS resource, wherein the first transmit power is the minimum value of the maximum transmit powers supported by different antenna ports of the SRS resource respectively.

[0008] According to a second aspect, a method for wireless communication is provided, comprising: a network device receives target information sent by a terminal device, the target information being used to determine a first transmission power, and / or the maximum transmission power of a sounding reference signal SRS resource sent by the terminal device on an orthogonal frequency division multiplexing (OFDM) symbol; wherein the first transmission power is the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource, and the terminal device transmits different antenna ports of the SRS resource respectively on multiple OFDM symbols.

[0009] In a third aspect, a terminal device is provided for executing the method in the above-mentioned first aspect or its various implementations.

[0010] Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect or its various implementation modes.

[0011] In a fourth aspect, a network device is provided for executing the method in the above second aspect or its various implementations.

[0012] Specifically, the network device includes a functional module for executing the method in the above-mentioned second aspect or its various implementation modes.

[0013] In a fifth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the first aspect or its respective implementations.

[0014] In a sixth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and execute the computer program stored in the memory to perform the method of the second aspect or its respective implementations.

[0015] In a seventh aspect, a chip is provided for implementing the method in any one of the first to second aspects or their respective implementations.

[0016] Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the device executes the method in any one of the first to second aspects or their respective implementations.

[0017] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, which enables a computer to execute the method of any one of the first to second aspects or their respective implementations.

[0018] In a ninth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method of any one of the first to second aspects or their respective implementations.

[0019] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method of any one of the first to second aspects or their respective implementations.

[0020] Through the above technical solution, the transmit power for each antenna port of the SRS resource is determined based on the minimum value of the maximum transmit powers supported by different antenna ports of the SRS resource. This helps avoid the problem where the transmit power for the determined antenna port exceeds the maximum transmit power supported by the antenna at the antenna port, resulting in the terminal device being unable to transmit the SRS resource using that transmit power. Furthermore, determining the PHR corresponding to the SRS resource based on the minimum value of the maximum transmit powers supported by different antenna ports of the SRS resource helps ensure the accuracy of the reported PHR. Thus, the network device can determine reasonable power control parameters based on the PHR, thereby achieving accurate power control. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

[0022] FIG2 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.

[0023] FIG3 is a schematic diagram of an SRS configuration according to an embodiment of the present application.

[0024] FIG4 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0025] FIG5 is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0026] FIG6 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0027] FIG7 is a schematic block diagram of a chip provided according to an embodiment of the present application.

[0028] FIG8 is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0031] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0032] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0033] Optionally, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0034] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0035] The terminal device can be a station (STA) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0036] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0037] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0038] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0039] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0040] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0041] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0042] For example, a communication system 100 used in an embodiment of the present application is shown in FIG1 . The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0043] FIG1 exemplarily shows a network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0044] Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0045] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function. The network device 110 and the terminal device 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0046] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association 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 " / " generally indicates that the related objects are in an "or" relationship.

[0047] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0048] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0049] In the embodiments of the present application, "pre-defined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device or a network device). The present application does not limit the specific implementation method. For example, pre-defined may refer to information defined in a protocol.

[0050] In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0051] To facilitate understanding of the embodiments of the present application, a sounding reference signal (SRS) related to the present application is described.

[0052] SRS is an important reference signal in the NR system and can realize various functions in the NR system, such as:

[0053] 1. UE sounding procedure for DL ​​CSI acquisition;

[0054] 2. Used for uplink beam management;

[0055] 3. Used for positioning function;

[0056] 4. Coordinate with codebook-based uplink transmission (including frequency-domain scheduling and rank / precoding matrix indicator (PMI) / modulation coding scheme (MCS) determination);

[0057] 5. Cooperate with non-codebook based uplink transmission (including frequency domain scheduling and SRS resource indicator (Sounding Reference Signal Resource Indicator, SRI) / MCS determination).

[0058] In the NR system, the network device can configure one or more SRS resource sets for a UE. Each SRS resource set can be configured with one or more SRS resources. Each SRS resource supports transmission of up to four antenna ports.

[0059] In the NR system, an SRS resource can be transmitted on multiple orthogonal frequency-division multiplexing (OFDM) symbols, for example, on the last N OFDM symbols of a time slot. The terminal device transmits all antenna ports of the SRS resource on each OFDM symbol, but the resources used by the antenna ports transmitted on different OFDM symbols can be different. The SRS transmitted on different OFDM symbols can have different transmission modes, that is, the SRS transmitted on multiple OFDM symbols can have different uses. For example, when the network device side requires a broadband SRS, the terminal device can be configured to perform frequency hopping on multiple OFDM symbols. For another example, if the current SRS is used for receive beam selection, the terminal device can use the same transmit beam to transmit the SRS on multiple OFDM symbols, and the network device side can use different receive beams to receive the SRS on different OFDM symbols, thereby determining the best receive beam.

[0060] In some scenarios, a terminal device with 8 antenna ports is introduced. In order to support the transmission of 8 antenna ports, the terminal device needs to send SRS resources of 8 antenna ports. The 8 antenna ports can be transmitted on the same OFDM symbol, for example, using frequency division multiplexing (FDM) or code division multiplexing (CDM); or they can be transmitted on different OFDM symbols, that is, using TDM multiplexing. For example, the network device can allocate 2 OFDM symbols for one SRS resource, and transmit 4 antenna ports of the SRS resource on each OFDM symbol, thereby supporting SRS transmission of 8 antenna ports.

[0061] To facilitate understanding of the embodiments of the present application, the uplink SRS power control related to the present application is described.

[0062] In the NR system, the SRS transmit power can be calculated according to the following formula:

[0063]

[0064] Among them, P CMAX,f,c (i) is the maximum transmit power supported by the terminal device, i is the index of an SRS transmission, and q s Represents an SRS resource set, target power P O_SRS,b,f,c (q s ) and path loss factor α SRS,b,f,c (q s ) is the SRS resource set q s The corresponding open-loop power control parameter; qd It is the index of the reference signal used for path loss measurement, used to obtain the path loss value PL b,f,c (q d ), which is also an open-loop power control parameter; h b,f,c (i, l) is the closed-loop power control adjustment state, where l is the index of the closed-loop power control adjustment state. Different closed-loop power control adjustment state indices correspond to independent closed-loop power control adjustment states. O_SRS,b,f,c (q s ), path loss factor α SRS,b,f,c (q s ) and q d Included in the configuration parameters of the SRS resource set, it is configured to the terminal device through high-level signaling. b,f,c (i,l) can reuse the closed-loop power control adjustment state of the Physical Uplink Shared Channel (PUSCH) or adopt an independent closed-loop power control adjustment state, depending on the Radio Resource Control (RRC) configuration.

[0065] In order for network devices to accurately configure the power control parameters of terminal devices, the NR system also supports terminal devices to report power headroom reports (PHRs), that is, terminal devices can report their own transmit power headroom to network devices.

[0066] If the eight antenna ports of the SRS resource are allocated to different OFDM symbols for transmission, and the maximum transmit powers supported by different antenna ports are different (for example, different antenna ports use different RF devices, resulting in different supported maximum transmit powers), then the maximum transmit powers actually used by the terminal device to transmit the SRS resource on different OFDM symbols are also different. For example, for a terminal device that supports a maximum transmit power of 23dBm, each of the eight antenna ports of the SRS resource corresponds to an RF power amplifier (such as a PA). The maximum transmit powers supported by these eight antenna ports can have multiple possibilities, such as the maximum transmit power supported by each antenna port is 23dBm, 20dBm, or 17dBm, or the maximum transmit power supported by some antenna ports is 14dBm, while the maximum transmit power supported by other antenna ports is 23dBm, or the maximum transmit power supported by some antenna ports is 14dBm, while the maximum transmit power supported by other antenna ports is 20dBm, etc.

[0067] If the transmit power of SRS is calculated based on the total maximum transmit power supported by the terminal device on all antenna ports (for example, 23dBm) as the upper limit, the calculated transmit power may be higher than the maximum transmit power that the terminal device can actually support on certain OFDM symbols (for example, the sum of the maximum powers that can be supported by the two antenna ports transmitting in the OFDM symbol may be only 17dBm), resulting in inconsistent transmit power on different OFDM symbols. On the other hand, if the PHR reporting value of SRS is calculated based on the maximum output power of the terminal device, it may cause the power margin to be estimated too much, which in turn causes the configured power control parameters of the network device (such as the Transmission Power Control (TPC) adjustment value) to be inaccurate, and the expected power control effect cannot be achieved.

[0068] Therefore, how to determine the transmission power of the SRS and / or report the power headroom of the SRS is an issue that needs to be solved urgently.

[0069] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0070] FIG2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. The method 200 may be executed by a terminal device in the communication system shown in FIG1 . As shown in FIG2 , the method 200 includes the following contents:

[0071] S210, a terminal device receives sounding reference signal (SRS) configuration information sent by a network device, where the SRS configuration information instructs the terminal device to transmit different antenna ports of an SRS resource on multiple orthogonal frequency division multiplexing (OFDM) symbols respectively.

[0072] S220, based on the first transmit power, determine the transmit power on each antenna port of the SRS resource, and / or the reporting value of the power margin report PHR corresponding to the SRS resource, wherein the first transmit power is the minimum value of the maximum transmit powers supported by different antenna ports of the SRS resource.

[0073] In the embodiment of the present application, transmitting SRS resources may also be expressed as transmitting SRS, and the antenna port for transmitting SRS resources may also be expressed as the antenna port for transmitting SRS.

[0074] In some embodiments, the terminal device supports X antenna ports. In order to support the transmission of X antenna ports, the terminal device needs to send SRS resources of X antenna ports on different OFDM symbols. X can be 4, 8, or 16, etc. The following is explained using X=8 as an example, but the present application is not limited to this.

[0075] It should be understood that the present application does not limit the usage of the SRS resources. For example, the SRS resources are SRS resources used for codebook-based uplink transmission, or the SRS resources are SRS resources used for uplink antenna switching.

[0076] In some embodiments, the SRS configuration information is used to indicate the configuration used for SRS transmission, such as physical resources, sequence, beam, usage, etc. For example, the network device may configure multiple OFDM symbols for the SRS resource and instruct the terminal device to transmit different antenna ports of the SRS resource on different OFDM symbols.

[0077] In some specific embodiments, the network device may configure 2 OFDM symbols for an SRS resource with 8 antenna ports, and transmit 4 antenna ports of the SRS resource on each OFDM symbol, as shown in FIG3 . Alternatively, the network device may configure 4 OFDM symbols for an SRS resource with 8 antenna ports, and transmit 2 antenna ports of the SRS resource on each OFDM symbol.

[0078] In some embodiments, the transmission power of the SRS resources on different antenna ports is the same, which is conducive to ensuring the performance of uplink transmission.

[0079] In the embodiment of the present application, the maximum transmit power supported by different antenna ports of the SRS resource can also be described as:

[0080] The maximum transmission powers respectively supported by antennas of different antenna ports used to transmit the SRS resources.

[0081] For example, each of the 8 antenna ports of an SRS resource corresponds to an antenna's RF power amplifier (e.g., PA). If the maximum transmit power supported by 6 of the 8 antenna ports is 14 dBm, and the maximum transmit power supported by the other two antenna ports is 20 dBm, then the first transmit power is the minimum value among them, i.e., 14 dBm. Alternatively, if the maximum transmit power supported by 7 of the 8 antenna ports is 20 dBm, and the maximum transmit power supported by the other antenna port is 23 dBm, then the first transmit power is the minimum value among them, i.e., 20 dBm.

[0082] Since the maximum transmission power that can be used by the antenna port of the terminal device to send SRS resources on an OFDM symbol is limited by the maximum transmission power supported by the antenna transmitting these antenna ports, considering the first transmission power when determining the transmission power on each antenna port of the SRS resource is helpful to avoid the problem that the transmission power on the determined antenna port is higher than the maximum transmission power supported by the antenna on the antenna port, resulting in the terminal device being unable to use the antenna port with this transmission power to send SRS.

[0083] The following describes a method for determining the transmit power of each antenna port of an SRS resource in combination with Embodiment 1 and Embodiment 2.

[0084] Example 1

[0085] In some implementations, determining the transmit power on each antenna port of the SRS resource based on the first transmit power includes:

[0086] Using the smaller value between the expected transmit power on each antenna port and the first transmit power as the transmit power on each antenna port of the SRS resource;

[0087] The expected transmission power is determined based on the second transmission power and the number of antenna ports of the SRS resource transmitted by the terminal device on an OFDM symbol, and the second transmission power is the transmission power calculated by the terminal device based on the power control parameters configured by the network device.

[0088] That is, the transmit power on each antenna port of the SRS resource can be determined according to the following formula:

[0089] P n,tx =min(P n ,P min,tx )

[0090] Among them, P n,tx P represents the transmit power of each antenna port of the SRS resource. n Indicates the expected transmit power, P min,tx Indicates the first transmitting power.

[0091] In some embodiments, the desired transmit power on each antenna port is the same.

[0092] For example, the second transmit power is evenly distributed to all antenna ports of the SRS resource on an OFDM symbol to obtain the expected transmit power on each antenna port.

[0093] That is, the expected transmit power can be understood as the transmit power at the antenna port granularity determined according to the power control parameters configured in the network device.

[0094] Therefore, in this embodiment 1, the transmission power on the antenna port is determined based on the minimum value of the transmission power of the antenna port granularity determined according to the power control parameters configured by the network device and the maximum transmission power supported by the antenna port, which is conducive to ensuring that the determined transmission power terminal device is achievable (or executable).

[0095] In some embodiments, the power is represented by a linear value, and the expected transmit power on each antenna port is equal to the second transmit power divided by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0096] That is, P n =P SRS / N S , where P n represents the expected transmit power (expressed as a linear value), P SRS represents the second transmission power (expressed by a linear value), N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0097] In this case, P n,tx =min(P SRS / N S ,P min,tx ).

[0098] In some embodiments, the power is expressed in dB, and the expected transmit power on each antenna port is equal to the second transmit power minus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol (i.e., 10log10(N S )).

[0099] That is, P n =P SRS -10log10(N S ), where P n Indicates the expected transmit power (expressed in dB), P SRS represents the second transmission power (expressed in dB value), N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0100] In this case, P n,tx =min(P SRS -10log10(N S ),P min,tx )dBm.

[0101] In some embodiments, the second transmit power may be calculated based on a power control parameter configured by the network device and a pre-agreed transmit power calculation formula. For example, the dB value of the second transmit power may be calculated based on the following formula:

[0102]

[0103] The meaning of each parameter in the formula refers to the relevant description in the aforementioned embodiment, and for the sake of brevity, it will not be repeated here.

[0104] It should be understood that in the embodiments of the present application, the linear value of power and the dB value of power can be converted into each other. The association relationship expressed by the linear value of power given in the embodiments of the present application can also be converted to be expressed by the dB value of power, and the association relationship expressed by the dB value can also be converted to be expressed by the linear value. For the sake of brevity, the association relationship under each expression method will not be described here one by one.

[0105] Example 2

[0106] In some other implementations, determining the transmit power on each antenna port of the SRS resource according to the first transmit power includes:

[0107] Determine the transmit power on each antenna port of the SRS resource according to the third transmit power and the number of antenna ports of the SRS resource transmitted by the terminal device in one OFDM symbol;

[0108] Among them, the third transmit power is the smaller value of the fourth transmit power and the second transmit power, the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device, and the fourth transmit power is the total maximum transmit power supported by all antenna ports on an OFDM symbol while ensuring that the transmit power on all antenna ports of an SRS resource is the same.

[0109] In some embodiments, when power is represented by a linear value, the fourth transmit power is equal to the first transmit power (represented by a linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0110] That is, P N,MIN =P min,tx *N S

[0111] Among them, P N,MIN represents the fourth transmission power (expressed by a linear value), P min,tx represents the first transmission power (expressed by a linear value), N SIndicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0112] In other embodiments, when power is expressed in dB value, the fourth transmit power is equal to the dB value of the first transmit power plus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on an OFDM symbol (i.e., 10log10(Ns)).

[0113] That is, P N,MIN =P min,tx +10log10(Ns)dBm

[0114] Among them, P N,MIN represents the fourth transmission power (expressed by dB value), P min,tx represents the first transmission power (expressed in dB value), N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0115] In some embodiments, the third transmit power is evenly distributed to all antenna ports of the SRS resource on an OFDM symbol to obtain the transmit power on each antenna port of the SRS resource.

[0116] For example, when the power is expressed as a linear value, the transmit power on each antenna port is equal to the third transmit power divided by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0117] That is, P n,tx =P3 / N S Substitute P3=min(P N,MIN , P SRS ), we can get: P n,tx =min(P N,MIN , P SRS ) / N S .

[0118] Wherein, P3 represents the third transmission power (expressed by a linear value), P N,MIN represents the fourth transmission power (expressed by a linear value), P SRS represents the second transmission power (expressed by a linear value), N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0119] For another example, when the power is expressed in dB, the transmit power on each antenna port is equal to the third transmit power minus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol (i.e., 10log10(NS )).

[0120] That is, P n,tx =P3-10log10(N S ), substitute P3=min(P N,MIN , P SRS ), we can get: P n,tx =min(P N,MIN , P SRS )-10log10(N S )dBm

[0121] Among them, P n,tx represents the transmit power on each antenna port (expressed in dB), P3 represents the third transmit power (expressed in dB), P N,MIN represents the fourth transmission power (expressed by dB value), P SRS represents the second transmission power (expressed in dB), N S The number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0122] In some embodiments, the second transmit power may be calculated based on a power control parameter configured by the network device and a pre-agreed transmit power calculation formula. For example, the dB value of the second transmit power may be calculated based on the following formula:

[0123]

[0124] The meaning of each parameter in the formula refers to the relevant description in the aforementioned embodiment, and for the sake of brevity, it will not be repeated here.

[0125] In some embodiments of the present application, the method 200 further includes:

[0126] The terminal device transmits the SRS resource according to the transmit power on each antenna port.

[0127] Since the maximum transmission power that can be used by the antenna port of the terminal device to send SRS resources on an OFDM symbol is limited by the maximum transmission power supported by the antenna transmitting these antenna ports, determining the PHR corresponding to the SRS resource based on the first transmission power is conducive to ensuring the accuracy of the reported PHR, so that the network device can determine reasonable power control parameters based on the PHR, thereby achieving accurate power control.

[0128] In some embodiments, if the terminal device reports the PHR based on the SRS resource set, the reported value of the PHR corresponding to the SRS resource is the reported value of the PHR of the SRS resource set where the SRS resource is located.

[0129] The following describes a method for determining a PHR reporting value corresponding to an SRS resource in conjunction with Embodiments 3 to 6.

[0130] Example 3

[0131] In some implementations, the reported value of the PHR is equal to the difference between the fifth transmit power and the third transmit power.

[0132] Among them, the fifth transmission power is the maximum output power of the terminal device, the third transmission power is the smaller value of the fourth transmission power and the second transmission power, wherein the second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device, and the fourth transmission power is equal to the first transmission power (linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol (power is expressed in a linear value).

[0133] When the fourth transmit power and the first transmit power are expressed in dB values, the fourth transmit power is equal to the first transmit power (linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, which can be replaced by: the fourth transmit power is equal to the first transmit power plus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0134] In the embodiment of the present application, the maximum output power of the terminal device can also be expressed as the maximum output power configured by the terminal device. For example, the maximum output power configured by the upper layer of the terminal device to the physical layer can be expressed as P CMAX,f,c (i) indicates.

[0135] In a specific embodiment, when the power is expressed in dB, the reported value of the PHR corresponding to the SRS may be determined according to the following formula:

[0136] PHR=P5-P3=P CMAX,f,c (i)-min(P N,MIN , P SRS )=P CMAX,f,c (i)-min(P min,tx +10log10(N S ), P SRS )(dB)

[0137] Among them, P5 represents the fifth transmission power, P3 represents the third transmission power, and P CMAX,f,c (i) represents the maximum output power of the terminal equipment, P SRS represents the second transmission power, P N,MIN represents the fourth transmission power, P min,txrepresents the first transmission power, N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0138] In some embodiments, if the reported value of PHR is determined based on the actual SRS transmission, the second transmit power P SRS It can be the maximum output power of the terminal device (i.e. P CMAX,f,c (i)) and the smaller value of the power calculated by the terminal device according to the power control parameters configured by the network device. For example, when the power is expressed in dB, the second transmit power can be determined according to the following formula:

[0139]

[0140] The meaning of each parameter in the formula refers to the relevant description in the aforementioned embodiment, and for the sake of brevity, it will not be repeated here.

[0141] In some other embodiments, if the reported value of the PHR is determined based on the actual SRS transmission, the second transmit power P SRS The second transmit power may be a power calculated based on the power control parameters configured on the network device. For example, when the power is expressed in dB, the second transmit power may be determined according to the following formula:

[0142] P SRS =P O_SRS,b,f,c (q s )+10log 10 (2 μ ·M SRS,b,f,c (i))+α SRS,b,f,c (q s )·PL b,f,c (q d )+h b,f,c (i,l)(dBm)

[0143] The meaning of each parameter in the formula refers to the relevant description in the aforementioned embodiment, and for the sake of brevity, it will not be repeated here.

[0144] In some other embodiments, if the reported value of the PHR is determined based on the reference SRS transmission, the second transmit power P SRS It can be the power calculated by the terminal device based on the reference power control parameter. For example, when the power is expressed in dB, the second transmit power can be determined according to the following formula:

[0145] P SRS =P O_SRS,b,f,c (q s )+α SRS,b,f,c (q s )·PL b,f,c(q d )+h b,f,c (i,l)(dBm)

[0146] The meaning of each parameter in the formula refers to the relevant description in the aforementioned embodiment, and for the sake of brevity, it will not be repeated here.

[0147] Optionally, the reference power control parameter may be a power control parameter of an SRS resource set with an SRS resource set ID=0 on a corresponding bandwidth part (Band Width Part, BWP).

[0148] Example 4

[0149] In some other implementations, the reported value of the PHR is equal to the difference between the fourth transmit power and the sixth transmit power.

[0150] In some embodiments, when power is expressed as a linear value, the fourth transmit power is equal to the first transmit power (linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0151] In some embodiments, when power is expressed in dB value, the fourth transmit power is equal to the first transmit power (dB value) plus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0152] In some embodiments, when power is expressed as a linear value, the sixth transmit power is equal to the transmit power (linear value) on each antenna port of the SRS resource multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0153] In some embodiments, when power is expressed in dB value, the sixth transmit power is equal to the transmit power (dB value) on each antenna port of the SRS resource plus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0154] Since the maximum transmission power that can be used by the antenna port of the terminal device to send SRS resources on an OFDM symbol is limited by the maximum transmission power supported by the antenna transmitting these antenna ports, the fourth transmission power can be understood as the total maximum transmission power that can be supported by all antenna ports on an OFDM symbol while ensuring that the transmission power of all antenna ports of an SRS resource is the same, that is, the maximum transmission power that the terminal device can achieve on an OFDM symbol. The sixth transmission power is the transmission power actually used by the antenna port of the terminal device to transmit on an OFDM symbol. The reported value of the PHR is determined based on the fourth and sixth transmission powers, which can ensure the accuracy of the PHR reported by the terminal device, so that the network device can perform accurate uplink power control based on the PHR.

[0155] When the power is expressed in dB values ​​(i.e., the unit is dBm), since the dB values ​​corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol can be offset when the fourth transmit power and the sixth transmit power are different, the reported value of the PHR is also equal to the difference between the first transmit power and the transmit power on each antenna port of the SRS resource. It is assumed here that the transmit power on different antenna ports of the SRS resource is the same.

[0156] In some specific examples, when the power is expressed in dB, the reported value of the PHR may be determined according to the following formula:

[0157] PHR=P N,MIN -P6=P min,tx +10log10(N S )-(P n,tx +10log10(N S ))=P min,tx -P n,tx (dB)

[0158] Among them, P N,MIN represents the fourth transmission power, P6 represents the sixth transmission power, and P min,tx represents the first transmission power, P n,tx N represents the transmit power of each antenna port of the SRS resource. S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0159] Example 5:

[0160] In some further implementations, the reported value of the PHR is equal to a difference between the fourth transmit power and the second transmit power.

[0161] In some embodiments, when power is expressed as a linear value, the fourth transmit power is equal to the first transmit power (linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0162] In some embodiments, when power is expressed in dB value, the fourth transmit power is equal to the first transmit power (dB value) plus the dB value corresponding to the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0163] In some embodiments, the second transmit power is a transmit power calculated by the terminal device according to the power control parameter configured by the network device. The specific calculation method is described in the above embodiments and will not be repeated here for the sake of brevity.

[0164] In some specific examples, when the power is expressed in dB, the reported PHR value can be determined according to the following formula:

[0165] PHR=P N,MIN -P SRS =P min,tx +10log10(N S )-P SRS (dB)

[0166] Among them, P N,MIN represents the fourth transmission power, P SRS represents the second transmission power, P min,tx represents the first transmission power, N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0167] Example 6:

[0168] In still other implementations, the reported value of the PHR is equal to a difference between the fourth transmit power and the seventh transmit power;

[0169] In some embodiments, the seventh transmission power is the smaller value of the fourth transmission power and the second transmission power, and the second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

[0170] In some embodiments, when power is expressed as a linear value, the fourth transmit power is equal to the first transmit power (linear value) multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0171] In some embodiments, when power is expressed in dB value, the fourth transmit power is equal to the first transmit power (dB value) plus the dB value corresponding to the number of antenna ports of the SRS resources transmitted by the terminal device on one OFDM symbol.

[0172] In some specific examples, when the power is expressed in dB, the reported PHR value can be determined according to the following formula:

[0173] PHR=P N,MIN -P7=P min,tx +10log10(N S )-min(P min,tx +10log10(N S ),P SRS )(dB)

[0174] Among them, P N,MIN represents the fourth transmission power, P7 represents the seventh transmission power, and P min,tx represents the first transmission power, N S Indicates the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, P SRS Indicates the second transmission power.

[0175] In some embodiments of the present application, the method 200 further includes:

[0176] The terminal device reports first information to the network device, where the first information is used to determine the maximum transmission power supported by at least one antenna port of the SRS resource.

[0177] For example, before the terminal device receives the SRS configuration information sent by the network device, the terminal device may report the first information to the network device.

[0178] In this embodiment of the present application, the maximum transmit power supported by at least one antenna port of the SRS resource can also be described as:

[0179] The maximum transmit power supported by the antenna of at least one antenna port used to transmit the SRS resource.

[0180] In some embodiments, the at least one antenna port may include some antenna ports of the SRS resources, or may also include all antenna ports of the SRS resources.

[0181] In some implementations, the first information includes a difference between a maximum transmit power supported by each antenna port of the SRS resource and a maximum output power of the terminal device.

[0182] For example, the first information may include multiple differences, each difference corresponding to an antenna port, and the difference is the maximum transmit power supported by the corresponding antenna and the maximum output power P of the terminal device. CMAX,f,c (i) The difference between the network equipment according to P CMAX,f,c (i) and the multiple differences, determine the maximum transmit powers supported by the multiple antenna ports respectively, and further determine the minimum value of the maximum transmit powers supported by the multiple antenna ports, that is, the first transmit power.

[0183] In some embodiments, the maximum output power of the terminal device is expressed as P CMAX,f,c (i), then the difference can be expressed as P N,MAX -P CMAX,f,c (i) or P CMAX,f,c (i)-P N,MAX , where P N,MAX Indicates the maximum transmit power supported by the Nth antenna port. Optionally, the difference value can be in the range of {0, -3, -6, -9} dB or {0, 3, 6, 9} dB, and the difference between the maximum transmit power supported by each antenna port and the maximum output power of the terminal device can be reported using 2 bits of information.

[0184] In some other implementations, the first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource. That is, the first information may include the first transmit power.

[0185] For example, the minimum value may range from {14, 17, 20, 23} dBm. Then, the first transmit power may be reported using 2 bits of information.

[0186] In some further implementations, the first information includes the difference between the minimum of the maximum transmit powers supported by different antenna ports of the SRS resource and the maximum output power of the terminal device. That is, the first information may include the difference between the first transmit power and the maximum output power of the terminal device.

[0187] For example, the maximum output power of the terminal device is expressed as P CMAX,f,c (i), then the difference can be expressed as P min,tx -P CMAX,f,c (i) or P CMAX,f,c (i)-P min,tx , where P min,tx Indicates the minimum value. Optionally, the difference value range can be {0, -3, -6, -9} dB or {0, 3, 6, 9} dB, and the difference between the minimum value and the maximum output power of the terminal device can be reported through 2 bits of information.CMAX,f,c (i) and the difference, determine the minimum value P min,tx , that is, the first transmitting power.

[0188] In some embodiments of the present application, the method 200 further includes:

[0189] The terminal device reports second information to the network device, and the second information is used to determine a fourth transmit power. The expression of the fourth transmit power is referred to the relevant description of the above embodiment, and is not repeated here for the sake of brevity.

[0190] In some embodiments, the second information is the difference between the fourth transmission power and the maximum output power of the terminal device.

[0191] For example, before the terminal device receives the SRS configuration information sent by the network device, the terminal device may report the second information to the network device.

[0192] In some implementations, when power is expressed in dB, the maximum output power of the terminal device is expressed as P CMAX,f,c (i), then the difference can be expressed as P N,MIN -P CMAX,f,c (i) = P min,tx +10log10(N S )-P CMAX,f,c (i) or P CMAX,f,c (i)-P N,MIN =P CMAX,f,c (i)-P min,tx -10log10(N S ). Optionally, the difference may be in the range of {3, 0, -3, -6} dB or {-3, 0, 3, 6} dB, and the difference may be reported using 2 bits of information. Furthermore, the network device determines the transmit power difference between the SRS and PUSCH based on the difference, thereby correctly estimating the channel quality indicator (CQI).

[0193] In some embodiments of the present application, the method 200 further includes:

[0194] The terminal device reports the PHR to the network device.

[0195] In summary, since the maximum transmit power that can be used by the antenna port of the terminal device to send SRS resources on an OFDM symbol is limited by the maximum transmit power supported by the antennas transmitting these antenna ports, determining the transmit power on each antenna port of the SRS resource based on the first transmit power is conducive to avoiding the problem that the transmit power on the determined antenna port is higher than the maximum transmit power supported by the antenna on the antenna port, resulting in the terminal device being unable to use the antenna port to send SRS using the transmit power. At the same time, determining the PHR corresponding to the SRS resource based on the first transmit power is conducive to ensuring the accuracy of the reported PHR, so that the network device can determine reasonable power control parameters based on the PHR, thereby achieving accurate power control.

[0196] The above text, in combination with Figures 2 to 3, describes in detail the method embodiment of the present application. The following text, in combination with Figures 4 to 8, describes in detail the device embodiment of the present application. It should be understood that the device embodiment and the method embodiment correspond to each other, and similar descriptions can refer to the method embodiment.

[0197] FIG4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG4 , the terminal device 400 includes:

[0198] The communication unit 410 is configured to receive sounding reference signal (SRS) configuration information sent by a network device, where the SRS configuration information indicates that the terminal device transmits one SRS resource on different antenna ports on multiple orthogonal frequency division multiplexing (OFDM) symbols respectively; and

[0199] The processing unit 420 is used to determine the transmission power on each antenna port of the SRS resource and / or the reporting value of the power margin report PHR corresponding to the SRS resource based on the first transmission power, wherein the first transmission power is the minimum value of the maximum transmission powers supported by different antenna ports of the SRS resource.

[0200] In some embodiments, the processing unit 420 is further configured to:

[0201] Using the smaller value between the expected transmit power on each antenna port and the first transmit power as the transmit power on each antenna port of the SRS resource;

[0202] The expected transmission power is determined based on the second transmission power and the number of antenna ports of the SRS resource transmitted by the terminal device on an OFDM symbol, and the second transmission power is the transmission power calculated by the terminal device based on the power control parameters configured by the network device.

[0203] In some embodiments, the expected transmit power on each antenna port is obtained by evenly distributing the second transmit power to all antenna ports of the SRS resource in one OFDM symbol.

[0204] In some embodiments, the processing unit 420 is further configured to:

[0205] Determine the transmit power on each antenna port of the SRS resource according to the third transmit power and the number of antenna ports of the SRS resource transmitted by the terminal device in one OFDM symbol;

[0206] Among them, the third transmit power is the smaller value of the fourth transmit power and the second transmit power, the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

[0207] In some embodiments, the transmit power on each antenna port of the SRS resource is obtained by evenly distributing the third transmit power to all antenna ports of the SRS resource in one OFDM symbol.

[0208] In some embodiments, the reported value of the PHR is equal to the difference between the fifth transmit power and the third transmit power, wherein the fifth transmit power is the maximum output power of the terminal device, and the third transmit power is the smaller value of the fourth transmit power and the second transmit power, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

[0209] In some embodiments, the reported value of the PHR is equal to the difference between the fourth transmit power and the sixth transmit power;

[0210] The fourth transmit power is equal to a linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0211] The sixth transmission power is equal to the linear value of the transmission power on each antenna port of the SRS resource multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device in one OFDM symbol.

[0212] In some embodiments, the reported value of the PHR is equal to the difference between the fourth transmit power and the second transmit power;

[0213] The fourth transmit power is equal to a linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0214] The second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

[0215] In some embodiments, the reported value of the PHR is equal to the difference between the fourth transmit power and the seventh transmit power;

[0216] The fourth transmit power is equal to a linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol;

[0217] The seventh transmission power is the smaller value of the fourth transmission power and the second transmission power, and the second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

[0218] In some embodiments, the communication unit 410 is further configured to:

[0219] Reporting first information to the network device, where the first information is used to determine a maximum transmit power supported by at least one antenna port of the SRS resource.

[0220] In some embodiments, the first information includes a difference between a maximum transmit power supported by each antenna port of the SRS resource and a maximum output power of the terminal device; or

[0221] The first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource; or,

[0222] The first information includes the difference between the minimum value of the maximum transmission powers supported by different antenna ports of the SRS resource and the maximum output power of the terminal device.

[0223] In some embodiments, the communication unit 410 is further configured to:

[0224] Report the difference between a fourth transmit power and the maximum output power of the terminal device to the network device, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0225] In some embodiments, the SRS resource is an SRS resource used for codebook-based uplink transmission, or the SRS resource is an SRS resource used for uplink antenna switching.

[0226] Alternatively, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0227] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the terminal device 400 are respectively for realizing the corresponding processes of the terminal device in the method 200 shown in Figures 2 to 3. For the sake of brevity, they will not be repeated here.

[0228] FIG5 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of FIG5 includes:

[0229] A communication unit 510 is configured to receive target information sent by a terminal device, the target information being used to determine a first transmit power and / or a maximum transmit power for transmitting a sounding reference signal (SRS) resource by the terminal device on an orthogonal frequency division multiplexing (OFDM) symbol;

[0230] The first transmission power is the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource, and the terminal device transmits the different antenna ports of the SRS resource respectively on multiple OFDM symbols.

[0231] In some embodiments, the target information includes first information, and the first information is used to determine the first transmit power;

[0232] The first information includes the difference between the maximum transmit power supported by each antenna port of the SRS resource and the maximum output power of the terminal device; or

[0233] The first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource; or,

[0234] The first information includes the difference between the minimum value of the maximum transmission powers supported by different antenna ports of the SRS resource and the maximum output power of the terminal device.

[0235] In some embodiments, the target information includes second information, which is used to indicate the difference between a fourth transmit power and the maximum output power of the terminal device, and the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

[0236] In some embodiments, the SRS resource is an SRS resource used for codebook-based uplink transmission, or the SRS resource is an SRS resource used for uplink antenna switching.

[0237] Alternatively, in some embodiments, the communication unit may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit may be one or more processors.

[0238] It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the above-mentioned and other operations and / or functions of each unit in the network device 500 are respectively for implementing the corresponding processes of the network device in the method 200 shown in Figures 3 to 3. For the sake of brevity, they will not be repeated here.

[0239] Figure 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. The communication device 600 shown in Figure 6 includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0240] Optionally, as shown in Figure 6, the communication device 600 may further include a memory 620. The processor 610 may call and execute a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0241] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0242] Optionally, as shown in FIG6 , the communication device 600 may further include a transceiver 630 , and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0243] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of antennas may be one or more.

[0244] Optionally, the communication device 600 may specifically be a network device in an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0245] Optionally, the communication device 600 may specifically be a mobile terminal / terminal device in an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0246] Figure 7 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in Figure 7 includes a processor 710, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0247] Optionally, as shown in FIG7 , the chip 700 may further include a memory 720 , wherein the processor 710 may call and execute a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0248] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0249] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0250] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0251] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0252] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0253] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0254] FIG8 is a schematic block diagram of a communication system 900 provided in an embodiment of the present application. As shown in FIG8 , the communication system 900 includes a terminal device 910 and a network device 920 .

[0255] Among them, the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be repeated here.

[0256] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can 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 various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature 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 the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0257] 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 random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (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.

[0258] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0259] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0260] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0261] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0262] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0263] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0264] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0265] The embodiment of the present application also provides a computer program.

[0266] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0267] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0268] 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.

[0269] 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.

[0270] 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.

[0271] 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.

[0272] 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.

[0273] 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.

[0274] 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 the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method of wireless communication, It is characterized in that include: The terminal device receives the sounding reference signal SRS configuration information sent by the network device, wherein the SRS configuration information indicates that the terminal device transmits different antenna ports of an SRS resource respectively on multiple orthogonal frequency division multiplexing OFDM symbols; Based on the first transmit power, determine the transmit power on each antenna port of the SRS resource and / or the reported value of the power margin report PHR corresponding to the SRS resource, wherein the first transmit power is the minimum value of the maximum transmit powers supported by different antenna ports of the SRS resource.

2. The method according to claim 1, It is characterized in that The determining, according to the first transmit power, the transmit power on each antenna port of the SRS resource includes: Using the smaller value between the expected transmit power on each antenna port and the first transmit power as the transmit power on each antenna port of the SRS resource; The expected transmission power is determined according to the second transmission power and the number of antenna ports of the SRS resource transmitted by the terminal device on an OFDM symbol, and the second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

3. The method according to claim 2, It is characterized in that The expected transmission power on each antenna port is obtained by evenly distributing the second transmission power to all antenna ports of the SRS resource on an OFDM symbol.

4. The method according to claim 1, It is characterized in that The determining, according to the first transmit power, the transmit power on each antenna port of the SRS resource includes: Determine the transmit power on each antenna port of the SRS resource according to the third transmit power and the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; Among them, the third transmit power is the smaller value of the fourth transmit power and the second transmit power, the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

5. The method according to claim 4, It is characterized in that The transmission power on each antenna port of the SRS resource is obtained by evenly distributing the third transmission power to all antenna ports of the SRS resource on one OFDM symbol.

6. The method according to any one of claims 1 to 5, It is characterized in that The reported value of the PHR is equal to the difference between the fifth transmit power and the third transmit power, wherein the fifth transmit power is the maximum output power of the terminal device, and the third transmit power is the smaller value of the fourth transmit power and the second transmit power, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

7. The method according to any one of claims 1 to 5, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the sixth transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The sixth transmission power is equal to the linear value of the transmission power on each antenna port of the SRS resource multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device in one OFDM symbol.

8. The method according to any one of claims 1 to 5, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the second transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

9. The method according to any one of claims 1 to 5, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the seventh transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The seventh transmission power is a smaller value between the fourth transmission power and the second transmission power, and the second transmission power is a transmission power calculated by the terminal device according to the power control parameters configured by the network device.

10. The method according to any one of claims 1 to 9, It is characterized in that The method further comprises: The terminal device reports first information to the network device, where the first information is used to determine the maximum transmission power supported by at least one antenna port of the SRS resource.

11. The method according to claim 10, It is characterized in that The first information includes the maximum transmit power supported by each antenna port of the SRS resource and the maximum output power of the terminal device. The difference between the output powers; or, The first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource; or, The first information includes the difference between the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource and the maximum output power of the terminal device.

12. The method according to any one of claims 1 to 11, It is characterized in that The method further comprises: The terminal device reports to the network device the difference between a fourth transmit power and the maximum output power of the terminal device, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

13. The method according to any one of claims 1-12, wherein the SRS resource is an SRS resource used for codebook-based uplink transmission, or the SRS resource is an SRS resource used for uplink antenna switching.

14. A method of wireless communication, It is characterized in that include: The network device receives target information sent by the terminal device, where the target information is used to determine a first transmit power and / or a maximum transmit power of a sounding reference signal SRS resource sent by the terminal device on an orthogonal frequency division multiplexing OFDM symbol; The first transmission power is the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource, and the terminal device transmits the different antenna ports of the SRS resource respectively on multiple OFDM symbols.

15. The method according to claim 14, It is characterized in that The target information includes first information, where the first information is used to determine the first transmit power; The first information includes the difference between the maximum transmission power supported by each antenna port of the SRS resource and the maximum output power of the terminal device; or The first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource; or, The first information includes the difference between the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource and the maximum output power of the terminal device.

16. The method according to claim 14 or 15, It is characterized in that The target information includes second information, where the second information is used to indicate the difference between a fourth transmit power and the maximum output power of the terminal device, and the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

17. The method according to any one of claims 14 to 16, wherein the SRS resource is an SRS resource used for codebook-based uplink transmission, or the SRS resource is an SRS resource used for uplink antenna switching.

18. A terminal device, It is characterized in that include: A communication unit receives sounding reference signal SRS configuration information sent by a network device, wherein the SRS configuration information indicates that the terminal device transmits different antenna ports of an SRS resource respectively on multiple orthogonal frequency division multiplexing OFDM symbols; A processing unit is used to determine the transmission power on each antenna port of the SRS resource and / or the reporting value of the power margin report PHR corresponding to the SRS resource based on a first transmission power, wherein the first transmission power is the minimum value of the maximum transmission powers supported by different antenna ports of the SRS resource.

19. The terminal device according to claim 18, It is characterized in that The determining, according to the first transmit power, the transmit power on each antenna port of the SRS resource includes: Using the smaller value between the expected transmit power on each antenna port and the first transmit power as the transmit power on each antenna port of the SRS resource; The expected transmission power is determined according to the second transmission power and the number of antenna ports of the SRS resource transmitted by the terminal device on an OFDM symbol, and the second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

20. The terminal device according to claim 19, It is characterized in that The expected transmission power on each antenna port is obtained by evenly distributing the second transmission power to all antenna ports of the SRS resource on an OFDM symbol.

21. The terminal device according to claim 18, It is characterized in that The processing unit is also used for: Determine the transmit power on each antenna port of the SRS resource according to the third transmit power and the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; Among them, the third transmit power is the smaller value of the fourth transmit power and the second transmit power, the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

22. The terminal device according to claim 21, It is characterized in that The transmission power on each antenna port of the SRS resource is obtained by evenly distributing the third transmission power to all antenna ports of the SRS resource on one OFDM symbol.

23. The terminal device according to any one of claims 18 to 22, It is characterized in that The reported value of the PHR is equal to the difference between the fifth transmit power and the third transmit power, wherein the fifth transmit power is the maximum output power of the terminal device, and the third transmit power is the smaller value of the fourth transmit power and the second transmit power, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol, and the second transmit power is the transmit power calculated by the terminal device according to the power control parameters configured by the network device.

24. The terminal device according to any one of claims 18 to 22, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the sixth transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The sixth transmission power is equal to the linear value of the transmission power on each antenna port of the SRS resource multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device in one OFDM symbol.

25. The terminal device according to any one of claims 18 to 22, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the second transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The second transmission power is the transmission power calculated by the terminal device according to the power control parameters configured by the network device.

26. The terminal device according to any one of claims 18 to 22, It is characterized in that The reported value of the PHR is equal to the difference between the fourth transmit power and the seventh transmit power; The fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol; The seventh transmission power is a smaller value between the fourth transmission power and the second transmission power, and the second transmission power is a transmission power calculated by the terminal device according to the power control parameters configured by the network device.

27. The terminal device according to any one of claims 18 to 26, It is characterized in that The communication unit is also used for: Reporting first information to the network device, where the first information is used to determine a maximum transmit power supported by at least one antenna port of the SRS resource.

28. The terminal device according to claim 27, It is characterized in that The first information includes a difference between a maximum transmission power supported by each antenna port of the SRS resource and a maximum output power of the terminal device; or, The first information includes a minimum value of maximum transmit powers respectively supported by different antenna ports of the SRS resource; or, The first information includes the difference between the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource and the maximum output power of the terminal device.

29. The terminal device according to any one of claims 18 to 28, It is characterized in that The communication unit is also used for: Report the difference between a fourth transmit power and the maximum output power of the terminal device to the network device, wherein the fourth transmit power is equal to the linear value of the first transmit power multiplied by the number of antenna ports of the SRS resource transmitted by the terminal device on one OFDM symbol.

30. According to the terminal device according to any one of claims 18-29, the SRS resource is an SRS resource used for codebook-based uplink transmission, or the SRS resource is an SRS resource used for uplink antenna switching.

31. A network device, It is characterized in that include: A communication unit, configured to receive target information sent by a terminal device, wherein the target information is used to determine a first transmit power, and / or a maximum transmit power of a sounding reference signal SRS resource sent by the terminal device on an orthogonal frequency division multiplexing OFDM symbol; The first transmission power is the minimum value of the maximum transmission powers respectively supported by different antenna ports of the SRS resource, and the terminal device transmits the different antenna ports of the SRS resource respectively on multiple OFDM symbols.

32. A terminal device, It is characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 13.

33. A network device, It is characterized in that include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 14 to 17.

34. A chip, It is characterized in that include: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 13, or a method as claimed in any one of claims 14 to 17.

35. A computer readable storage medium, It is characterized in that Used to store a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 13, or the method according to any one of claims 14 to 17.

36. A computer program product, It is characterized in that The method comprises computer program instructions which cause a computer to execute the method as claimed in any one of claims 1 to 13 or the method as claimed in any one of claims 14 to 17.

37. A computer program, It is characterized in that The computer program causes a computer to execute the method according to any one of claims 1 to 13, or the method according to any one of claims 14 to 17.

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