Communication method and apparatus

Abstract

The present application relates to the technical field of communications, and provides a communication method and apparatus, used for reducing the power consumption of a communication apparatus without losing the gain of an antenna array. The communication apparatus provided by the present application comprises N beamforming channels; when the communication apparatus works in a first mode, the N channels perform straight-through processing on an input signal; when the communication apparatus works in a second mode, the N channels perform spread spectrum and dispreading processing on the input signal; and some of intermediate frequency modules are disabled, wherein the N channels share one or more intermediate frequency modules that are not disabled, and N is a positive integer greater than 1.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on August 11, 2023, with application number 202311019454.9 and application name “A Communication Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

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

[0003] To meet the continuous development of wireless access services, communication devices have increasingly higher requirements for service load capacity. The operating bandwidth of communication devices has become larger, the number of transceiver channels has increased, and the transmission power has increased, which has led to higher and higher power consumption of communication devices. Among them, for the power consumption of the active antenna unit (AAU), for scenarios with high service load, the power consumption of the power amplifier module accounts for a larger proportion; while for scenarios with low service load, the power consumption of the intermediate frequency module and the small signal processing before the power amplifier accounts for a larger proportion of the AAU power consumption. Therefore, in the field of energy-saving technology, it is necessary not only to improve the efficiency of the power amplifier and reduce the power consumption of the power amplifier; when the service load is low, it is also necessary to reduce the basic power consumption generated by the intermediate frequency module and small signal processing.

[0004] Existing beamforming technologies include digital beamforming (ABF), analog hybrid beamforming (AHBF), and analog beamforming (DBF) or digital hybrid beamforming (DHBF). In the ABF / AHBF architecture, each IF module is connected to multiple RF modules. Therefore, the number of IF channels is usually smaller than the number of RF channels. In the DBF / DHBF architecture, each RF module is connected to one IF module, and the number of IF channels is usually equal to the number of RF channels.

[0005] Currently, AAU power consumption can be reduced by disabling some channels in the communication device, such as some intermediate frequency (IF) channels and / or radio frequency (RF) channels. However, disabling some channels renders the corresponding antenna array unusable, resulting in a loss of antenna array gain and reduced communication performance.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a communication method and apparatus for reducing AAU power consumption without losing antenna array gain.

[0008] To achieve the above objectives, this application adopts the following technical solutions:

[0009] In a first aspect, a communication device is provided, comprising N beamforming channels. The communication device comprises: a processing module configured to, when the communication device operates in a first mode, enable the N channels to perform direct-through processing on input signals; the processing module further configured to, when the communication device operates in a second mode, enable the N channels to perform spread spectrum and despread processing on the input signals; and to shut down some intermediate frequency modules, wherein the N channels share one or more intermediate frequency modules that are not shut down, and N is a positive integer greater than 1.

[0010] In the above-described embodiment, the communication device can dynamically adjust its operating state. In the first mode, the N channels of the communication device process the input signal directly, maintaining the original architecture and not affecting system performance. Alternatively, the communication device can switch to the second mode, where the N channels perform spread spectrum and despreading processing on the input signal, disabling some intermediate frequency channels. This reduces power consumption without sacrificing antenna array gain or degrading system performance.

[0011] In one embodiment, the processing module includes a modulation module. In a first mode, each of the N channels is loaded with a constant codeword via the modulation module. In the above embodiment, by adding the modulation module, when the modulation module is loaded with a constant codeword, the N channels of the communication device process the input signal directly, maintaining the original architecture without affecting system performance.

[0012] In one embodiment, the processing module includes a modulation module, and in the second mode, each of the N channels is loaded with a non-constant codeword via the modulation module. In the above embodiment, by adding the modulation module, when the modulation module is loaded with a non-constant codeword, the N channels of the communication device can perform spread spectrum and despreading processing on the input signal, thereby enabling multiple channels to share one or more intermediate frequency modules that are not disabled without affecting system performance, thereby achieving the purpose of reducing power consumption.

[0013] In one embodiment, the current traffic load indicator of the communication device is associated with the number of the closed intermediate frequency channels. In the above embodiment, the communication device can dynamically switch operating modes and determine the number of closed intermediate frequency channels based on changes in traffic load, thereby flexibly reducing power consumption and improving system performance.

[0014] In one embodiment, the communication device further includes a decision module configured to: determine that the communication device operates in a first mode when a current traffic load indicator of the communication device is greater than or equal to a first threshold; and determine that the communication device operates in a second mode when the current traffic load indicator of the communication device is less than or equal to a second threshold. In the above embodiment, the communication device can determine the operating mode based on a comparison of the current traffic load indicator with a preset threshold, thereby flexibly reducing power consumption and improving system performance.

[0015] In one embodiment, N channels include M IF modules, each of which is connected to one or more RF modules and / or power amplifier modules, where M is a positive integer greater than 1, and N is greater than or equal to M. The embodiments of the present application are applicable to both ABF / AHBF architecture and DBF / DHBF architecture. For the ABF / AHBF architecture, each IF module is connected to one RF module, and for the DBF / DHBF architecture, each IF module is connected to multiple RF modules. Therefore, the embodiments of the present application are flexible and easy to implement.

[0016] In one embodiment, the modulation module includes a modulator and a demodulator, wherein the modulator is configured to load codewords and perform spread spectrum processing on an input signal, and the demodulator is configured to load codewords and perform despreading processing on the input signal. In the above embodiment, by adding a modulator and a demodulator for loading codewords and transforming the loaded codewords, the modulation module can switch between direct processing and spread spectrum / despreading processing, thereby achieving switching between a first mode and a second mode, thereby achieving the purpose of reducing power consumption without losing antenna array gain or degrading system performance.

[0017] In one embodiment, if the communication device is used to transmit signals, the input signal of the demodulator is the signal output by the intermediate frequency module, or the input signal of the demodulator is the signal output by the radio frequency module, or the input signal of the demodulator is the signal output by the power amplifier module; if the communication device is used to receive signals, the signal output by the demodulator is the input signal of the intermediate frequency module, or the signal output by the demodulator is the signal input by the radio frequency module, or the signal output by the demodulator is the input signal of the power amplifier module.

[0018] In a second aspect, a communication method is provided, which is applied to a communication device, wherein the communication device includes N beamforming channels, and the method includes: when the communication device operates in a first mode, the N channels perform direct-through processing on the input signal; when the communication device operates in a second mode, the N channels perform spread spectrum and despread processing on the input signal; and turn off some intermediate frequency modules, wherein the N channels share one or more intermediate frequency modules that are not turned off, and N is a positive integer greater than 1.

[0019] In one embodiment, in the first mode, each of the N channels is loaded with a constant codeword through a modulation module.

[0020] In one embodiment, in the second mode, each of the N channels is loaded with a non-constant codeword through a modulation module.

[0021] In one embodiment, the current traffic load indicator of the communication device is associated with the number of the closed intermediate frequency channels.

[0022] In one embodiment, the method further includes: when the current business load index of the communication device is greater than or equal to a first threshold, determining that the communication device is operating in a first mode; when the current business load index of the communication device is less than or equal to a second threshold, determining that the communication device is operating in a second mode.

[0023] In one embodiment, N channels include M intermediate frequency modules, each intermediate frequency module is connected to one or more radio frequency modules and / or power amplifier modules, wherein M is a positive integer greater than 1, and N is greater than or equal to M.

[0024] In one embodiment, the modulation module includes a modulator and a demodulator, wherein the modulator is used to load a code word and perform spread spectrum processing on an input signal, and the demodulator is used to load a code word and perform despreading processing on the input signal.

[0025] In one embodiment, if the communication device is used to transmit signals, the input signal of the demodulator is the signal output by the intermediate frequency module, or the input signal of the demodulator is the signal output by the radio frequency module, or the input signal of the demodulator is the signal output by the power amplifier module; if the communication device is used to receive signals, the signal output by the demodulator is the input signal of the intermediate frequency module, or the signal output by the demodulator is the signal input by the radio frequency module, or the signal output by the demodulator is the input signal of the power amplifier module.

[0026] According to a third aspect, a communication device is provided, comprising a processor and a memory coupled to the processor; the memory stores computer program code, the computer program code comprising computer instructions, and when the processor executes the computer instructions, the communication device executes a method as described in any one of the second aspects above.

[0027] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are called by the computer, the computer executes the method as described in any one of the above-mentioned second aspects.

[0028] According to a fifth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method according to any one of the above-mentioned second aspects.

[0029] In a sixth aspect, a chip is provided, which is coupled to a memory and is used to read and execute program instructions stored in the memory to implement the method as described in any one of the second aspects above.

[0030] It can be understood that any of the communication methods, communication devices, computer-readable storage media, computer program products or chips provided above can be applied to the corresponding communication devices provided in the first aspect above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding communication devices provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG1 is an architecture diagram of a communication system provided in an embodiment of the present application;

[0032] FIG2 is an architecture diagram of a communication device provided in an embodiment of the present application;

[0033] FIG3 is a schematic diagram of a beamforming architecture provided in an embodiment of the present application;

[0034] FIG4 is a schematic diagram of another beamforming architecture provided in an embodiment of the present application;

[0035] FIG5 is a schematic diagram of power consumption statistics of a communication device provided in an embodiment of the present application;

[0036] FIG6 is a schematic diagram of a communication method provided in an embodiment of the present application;

[0037] Figures 7 to 16 are schematic diagrams 1 to 10 of a communication device according to an embodiment of the present application;

[0038] FIG17 is an architectural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this embodiment, unless otherwise specified, "plurality" means two or more.

[0040] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0041] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0042] In the embodiments of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission".

[0043] In addition, in this application, "greater than or equal to a certain value" can be replaced by "greater than the value", and "less than or equal to a certain value" can be replaced by "less than the value". Conversely, "greater than a certain value" can be replaced by "greater than or equal to the value", and "less than a certain value" can be replaced by "less than or equal to the value". In other words, whether "equal to a certain value" is considered to satisfy the condition can be flexibly set and adjusted as needed, and this application does not make specific restrictions on this.

[0044] Furthermore, the "pre-configuration" in the embodiments of the present application may refer to a configuration performed in advance for a device before executing a certain process, and may also be understood as a standard predefined configuration.

[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on 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.

[0046] First, a brief introduction to the implementation environment and application scenarios of the embodiments of the present application is given.

[0047] The method provided in the embodiments of the present application can be applied to any communication device in various communication systems, such as a network device or a terminal.

[0048] Network equipment may include access network equipment, which refers to radio access network (RAN) nodes (or devices) that connect terminals to wireless networks, such as base stations. Examples of RAN nodes include: evolved Node B (gNB), transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home evolved Node B (HNB), base band unit (BBU), etc. RAN nodes may also include devices that perform base station functions in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-type communication (MTC), satellites, or base stations in future communication systems, without limitation.

[0049] The terminal may also be referred to as a terminal device, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a user equipment (UE), a wireless communication device, a user agent or a user device. The terminal of the present application may be applied to various communication scenarios, for example, D2D communication, V2X communication, MTC, Internet of Things (IOT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city, etc. The terminal device may be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a wearable device, aerospace equipment, drone equipment, etc. In the embodiment of the present application, the chip used in the above-mentioned device may also be referred to as a terminal.

[0050] The above-mentioned communication device can be applied to the fifth generation mobile communication (5G) or new radio (NR) NR communication system, and can also be used in any other wireless communication system with similar structure and function. As shown in Figure 1, the communication system includes at least a terminal 101 and a network device 102.

[0051] In addition, the communication systems applied in this application include but are not limited to: non-terrestrial network (NTN) communication system, narrowband Internet of Things (NB-IoT) system, global system for mobile communications (GSM), enhanced data rate for GSM evolution system (EDGE), wideband code division multiple access system (WCDMA), code division multiple access 2000 system (CDMA2000), time division-synchronization code division multiple access system (TD-SCDMA), long term evolution system (LTE), 5G mobile communication system and the three major application scenarios of future communication systems: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC) and enhanced machine type communication (eMTC).

[0052] It should be noted that Figure 1 is merely an illustrative framework diagram, and the number of network element nodes included in Figure 1 is unlimited. In addition to the functional nodes shown in Figure 1, other nodes may also be included, such as core network devices, gateway devices, and application servers, without limitation. Access network devices communicate with core network devices via wired or wireless networks, such as through interfaces in future communication networks.

[0053] In a specific implementation, a terminal or network device may adopt the structure shown in Figure 2 or include the components shown in Figure 2. Figure 2 is a schematic diagram of the structure of a communication device 200 provided in an embodiment of the present application. When the communication device 200 has the functions of the terminal communication device described in an embodiment of the present application, the communication device 200 may be a chip or system-on-chip in the terminal or network device.

[0054] As shown in Figure 2, the communication device 200 may include a processor 201, a communication line 202, and a communication interface 203. Furthermore, the communication device 200 may also include a memory 204. The processor 201, the memory 204, and the communication interface 203 may be connected via the communication line 202.

[0055] The processor 201 may be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device, or any combination thereof. The processor 201 may also be other devices with processing functions, such as circuits, devices, or software modules.

[0056] The communication line 202 is used to transmit information between the components included in the communication device 200.

[0057] Communication interface 203 is used to communicate with other devices or other communication networks. Such other communication networks may be Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc. Communication interface 203 may be an interface circuit, a pin, a radio frequency module, a transceiver, or any other device capable of communication.

[0058] The memory 204 is used to store instructions, where the instructions may be computer programs.

[0059] The memory 204 may be a read-only memory (ROM) or other types of static storage devices capable of storing static information and / or instructions, a random access memory (RAM) or other types of dynamic storage devices capable of storing information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc (CD-ROM), or other optical disc storage, optical disk storage, magnetic disk storage media, or other magnetic storage devices. Optical disc storage includes compact discs, laser discs, optical discs, digital versatile discs, or Blu-ray discs, etc.

[0060] It should be noted that memory 204 can exist independently of processor 201 or can be integrated with processor 201. Memory 204 can be used to store instructions, program code, or data. Memory 204 can be located within or outside of communication device 200, without limitation. Processor 201 is configured to execute instructions stored in memory 204 to implement the methods provided in the following embodiments of this application.

[0061] In an example, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2 .

[0062] As an optional implementation, the communication device 200 includes multiple processors. For example, in addition to the processor 201 in FIG. 2 , it may also include a processor 207 .

[0063] As an optional implementation, the communication apparatus 200 further includes an output device 205 and an input device 206. For example, the input device 206 is a keyboard, a mouse, a microphone, or a joystick, and the output device 205 is a display screen, a speaker, or the like.

[0064] It should be noted that the communication device 200 may be a wearable device, a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system, or a device having a similar structure to that shown in FIG2 . Furthermore, the composition structure shown in FIG2 does not constitute a limitation on the communication device. In addition to the components shown in FIG2 , the communication device may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0065] In the embodiment of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0066] Before introducing the embodiments of the present application, a brief introduction to related technologies of beamforming is first given.

[0067] Beamforming, also known as beamforming or spatial filtering, is a signal processing technique that uses a sensor array to transmit and receive signals in a targeted manner. Beamforming adjusts the parameters of the basic elements of a phased array so that signals at certain angles interfere constructively, while signals at other angles interfere destructively. Therefore, beamforming can focus the antenna energy of a communication device toward a specific user. Beamforming can be used on both the transmitting and receiving sides of a signal.

[0068] Currently, beamforming technologies are categorized into DBF / DHBF and ABF / AHBF. As shown in Figure 3, a DBF / DHBF architecture in a communication device includes m channels composed of baseband, IF, RF, and antenna modules. These channels include m IF modules, each connected to an RF module. Therefore, the number of RF modules in a DBF / DHBF architecture is equal to the number of IF modules, meaning the number of RF channels is equal to the number of IF channels.

[0069] The IF module is used for IF signal processing and may include functions such as an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), IF amplification, mixing, and attenuation.

[0070] The RF module is used for RF signal processing and may include functions such as filtering, amplification, phase shifting, and attenuation. The RF module may specifically be a transmitter-receiver responsible for transmitting (Transmitter, Tx) high-frequency analog signals to the antenna, or receiving (Receiver, Rx) high-frequency analog channels from the antenna. In the embodiment of the present application, the RF module may be referred to as a TRX module for short. The TRX module mainly includes a phase and amplitude control circuit; optionally, a power amplifier (PA) or a low-noise amplifier (LNA) may also be integrated into the RF module, wherein the main function of the PA and LNA is to amplify the power of "small signals", the PA is mainly used to send signals, and the LNA is mainly used to receive signals. Alternatively, the PA or LNA may also be deployed separately as a power amplifier module, independent of the RF module, and this application does not limit this.

[0071] It should be noted that in the embodiments of the present application, the signal processing at each stage can be referred to as a channel, that is, the channel for signal processing by the RF module can be referred to as a RF channel, and the channel for signal processing by the IF module can be referred to as an IF channel.

[0072] As shown in Figure 4, the ABF / AHBF architecture in a communication device includes a IF modules, each of which is connected to b RF modules, where a and b are both positive integers greater than 1. Therefore, the number of IF channels in an ABF / AHBF architecture is typically less than or significantly less than the number of RF channels.

[0073] To reduce power consumption and improve communication efficiency, the AAU accounts for approximately 90% of the total power consumption of communication devices, as shown in Figure 5. The power consumption of the AAU module includes the power supply, intermediate frequency module, power amplifier, and other small signal processing preceding the power amplifier. Statistical data shows that the power consumption contribution of each AAU module varies significantly under varying service loads.

[0074] For example, as shown in the statistical data in Figure 5, at 100% service load, the power amplifier accounts for the highest proportion of power consumption, approximately 58%, while the digital IF and small signal power consumption accounts for approximately 37%. At 30% service load, the power amplifier power consumption decreases to 37%, while the digital IF and small signal power consumption account for 59%. Under no-load conditions, i.e., with no service load, the power amplifier power consumption accounts for only 15%, while the digital IF and small signal power consumption increases to 80%.

[0075] Therefore, in the field of AAU energy-saving technology, it is necessary not only to improve power amplifier efficiency and reduce power amplifier power consumption. When the service load is low, it is even more necessary to reduce the basic power consumption of small signal processing and intermediate frequency signals. However, as can be seen from the above-mentioned existing communication device architecture, if some intermediate frequency channels are turned off to reduce power consumption, the RF modules and antenna arrays connected to the turned-off intermediate frequency channels are also turned off and unavailable, resulting in a loss of antenna gain and reduced communication performance.

[0076] Next, the communication method and communication device involved in the embodiments of the present application are introduced.

[0077] The present application provides a communication method, which introduces code domain freedom so that the communication device can freely switch between a fully connected state and an energy-saving state according to the service load index. For example, when the service load is low, the energy-saving state can be entered. By shutting down some intermediate frequency channels in the N beamforming channels, power consumption can be reduced without losing antenna gain.

[0078] As shown in FIG6 , the method may include the following steps.

[0079] 601: When the communication device operates in the first mode, N channels perform direct processing on input signals.

[0080] Exemplarily, the method can be applied to a communication device 700 as shown in FIG7 , which includes N beamforming channels, wherein a beamforming channel refers to a signal processing channel from the baseband to the antenna array. As shown in FIG7 , the information processing channel from the baseband to the antenna array may include intermediate frequency (IF) and radio frequency (RF) signal processing processes. In an embodiment of the present application, the channel for processing the signal by the IF module may be referred to as an IF channel, and the channel for processing the signal by the RF module may be referred to as a RF channel. In addition, optionally, the communication device may further include a channel for power amplification processing by a power amplifier module, which may be referred to as a power amplifier channel; alternatively, the power amplifier module may be integrated into the RF module.

[0081] When the communication device operates in the first mode, all intermediate frequency and radio frequency channels in the communication device shown in FIG7 operate normally, and all N channels perform direct-through processing on input signals.

[0082] In one embodiment, the first mode may mean: when the communication device determines that it is currently under a high business load, it enters a performance mode working state, that is, a fully connected working state, all intermediate frequency modules and radio frequency modules in the communication device are connected, and the intermediate frequency channel and the radio frequency channel are operating normally.

[0083] 602: When the communication device operates in the second mode, the N channels perform spread spectrum and despread spectrum processing on the input signal; and some intermediate frequency modules are turned off.

[0084] N channels can share one or more non-disabled intermediate frequency modules to perform spread spectrum and despreading on the input signal. Spread spectrum is a signal modulation method that uses a specific codeword sequence to expand the bandwidth of the input signal to produce a spread spectrum signal. For example, spread spectrum processing can be performed by performing an inner product operation on a series of orthogonal codeword sequences and the baseband modulated signal. Despreading is the inverse of spread spectrum modulation, processing the spread signal using a specific codeword sequence to restore it to the original bandwidth.

[0085] Exemplarily, a communication device includes M intermediate frequency modules, i.e., M intermediate frequency channels. When the communication device operates in the second mode, i of the M intermediate frequency channels may be disabled. The communication device may then share the remaining undisabled intermediate frequency channels of the M intermediate frequency channels, excluding the i disabled intermediate frequency channels, i.e., Mi intermediate frequency channels. N, M, and i are all positive integers greater than 1.

[0086] As can be seen from the aforementioned beamforming architecture, each IF module can be connected to one or more RF modules, and each RF module can be connected to an antenna array. Therefore, N is greater than or equal to M. In the DBF / DHBF architecture, each IF module is connected to one RF module; in the ABF / AHBF architecture, each IF module is connected to multiple RF modules. The number of RF modules connected to each IF module can be the same or different.

[0087] Exemplarily, as shown in FIG7 , when the communication device operates in the second mode, some of the multiple intermediate frequency channels in the communication device may be closed, and N channels may share one or more intermediate frequency modules that are not closed.

[0088] For example, as shown in FIG8 , taking the DBF / DHBF architecture as an example, the communication device includes four intermediate frequency channels. In the second mode, the communication device can shut down three of the intermediate frequency channels and retain only one of the intermediate frequency channels, wherein the four beamforming channels can share the intermediate frequency module that is not shut down.

[0089] In one embodiment, the second mode may mean: when the communication device determines that it is currently in a medium / low business load, it enters the energy-saving mode, that is, the working state in which some intermediate frequency channels are closed. The communication device closes some intermediate frequency channels, and N channels can share some intermediate frequency modules that are not closed.

[0090] In one embodiment, the basis for determining whether the communication device switches to the first mode or the second mode may be determined by comparing a current traffic load indicator with a preconfigured threshold. For example, the communication device may be preconfigured with a first threshold. When the current traffic load indicator of the communication device is greater than or equal to the first threshold, the communication device is determined to be operating in the first mode. Alternatively, the communication device may be preconfigured with a second threshold. When the current traffic load indicator of the communication device is less than or equal to the second threshold, the communication device is determined to be operating in the second mode. Exemplarily, the first threshold and the second threshold may be the same or different.

[0091] For example, the first threshold and the second threshold can be 30%. When the current business load index of the communication device is greater than or equal to 30%, it operates in the first mode and does not close the intermediate frequency channel. If the current business load index of the communication device is less than 30%, the communication device switches to the second mode and closes some intermediate frequency channels, thereby saving power consumption. For another example, the first threshold is 40% and the second threshold can be 30%. When the current business load index of the communication device is greater than or equal to 40%, it operates in the first mode and does not close the intermediate frequency channel. If the current business load index of the communication device is less than or equal to 30%, the communication device switches to the second mode and closes some intermediate frequency channels, thereby saving power consumption.

[0092] Furthermore, in one embodiment, the number of IF channels disabled by the communication device may be associated with a current traffic load indicator. Alternatively, the current traffic load indicator of the communication device may be associated with the ratio of the number of disabled IF channels to the total number of IF channels. In other words, the communication device may determine the number of IF channels to disable based on the current traffic load indicator.

[0093] For example, a communication device's traffic load indicator may be negatively correlated with the number of closed IF channels. That is, the lower the communication device's current traffic load indicator, the more IF channels the communication device closes; conversely, the higher the communication device's current traffic load indicator, the fewer IF channels the communication device closes. For another example, a communication device's traffic load indicator may be negatively correlated with the ratio of closed IF channels to the total number of IF channels.

[0094] Exemplarily, if the second threshold is 50%, when the current business load index of the communication device is 100%, the number of intermediate frequency channels closed by the communication device is 0; if the current business load index of the communication device is 50%, the number of intermediate frequency channels closed by the communication device is 1; if the current business load index of the communication device is 30%, the number of intermediate frequency channels closed by the communication device is 2; if the current business load index of the communication device is 10%, the number of intermediate frequency channels closed by the communication device is 3; if the current business load index of the communication device is 0, the number of intermediate frequency channels closed by the communication device is 4.

[0095] In one embodiment, in a first mode, each of the N channels of the communication device is loaded with a constant codeword via a modulation module. In a second mode, each of the N channels of the communication device is loaded with a non-constant codeword via a modulation module.

[0096] That is, the communication device includes a modulation module for loading codewords. The communication device can achieve function switching by converting the codewords in the modulation module. Specifically, each of the N channels of the communication device includes a modulation module. When the communication device operates in the first mode, the modulation module can be used to load a constant codeword. When the modulation module uses the constant codeword, it performs direct signal processing. When the communication device operates in the second mode, the modulation module can be used to load a non-constant codeword. When the modulation module uses the non-constant codeword, it performs spread spectrum and despreading processing on the signal.

[0097] A constant codeword refers to an output codeword that is constant. For example, the codeword may be {0, 0, 0, 0, 0, ...}, or {1, 1, 1, 1, 1, ...}, or {0, 1, 0, 1, 0, 1, ...}. Conversely, a non-constant codeword refers to an output codeword that is not constant. For example, Walsh codes and pseudo-random codes are non-constant codewords.

[0098] Furthermore, in one embodiment, the modulation module may include a modulator and a demodulator, wherein the modulator is configured to load a codeword and perform modulation processing on an input signal, and the demodulator is configured to load a codeword and perform demodulation processing on the input signal. For example, if the modulator loads a non-constant codeword and can perform spread spectrum processing on the signal, the demodulator can load the non-constant codeword and perform despread processing on the spread spectrum signal.

[0099] For example, as shown in Figure 9, using the DBF / DHBF architecture as an example, the modulator can be distributed between the baseband and the IF module of each channel in the N channels. When the communication device transmits a signal, the input signal of the modulator can be the baseband output signal, and the output signal of the modulator can be the input signal of the IF module. The demodulator can be distributed between the IF module and the RF module of each channel in the N channels.

[0100] In this implementation, if the communication device is used to transmit signals, the demodulator's input signal may be the signal output by the intermediate frequency module. If the communication device is used to receive signals, the demodulator's output signal may be the input signal to the intermediate frequency module.

[0101] At this point, as shown in Figure 9 (a), when the communication device operates in the first mode (e.g., performance mode), all IF frequencies operate normally. As shown in Figure 9 (b), when the communication device operates in the second mode (e.g., energy-saving mode), IF frequencies 2, 3, and 4 can be disabled, leaving only IF 1 operating normally. Multiple channels can share IF 1, which remains enabled, thereby saving power without sacrificing antenna array gain.

[0102] Alternatively, in another implementation, as shown in FIG10 , taking the DBF / DHBF architecture as an example, the demodulator may be distributed between the RF module and the antenna array of each of the N channels.

[0103] In this implementation, as shown in FIG10 , if the communication device is used to transmit signals, the demodulator's input signal may be the signal output by the RF module. If the communication device is used to receive signals, the demodulator's output signal may be the input signal to the RF module.

[0104] At this point, as shown in Figure 10(a), when the communication device operates in the first mode (e.g., performance mode), all IFs operate normally. As shown in Figure 10(b), when the communication device operates in the second mode (e.g., energy-saving mode), IFs 2, 3, and 4 can be disabled, leaving only IF 1 operating normally. Multiple channels can share the non-disabled IF 1 and the RF module connected to it, thereby saving power without sacrificing antenna array gain.

[0105] Furthermore, in another possible implementation, the PA / LNA can be deployed separately, or integrated with the RF module. That is, in the communication device shown in FIG9 or FIG10 , the RF module can also be integrated with the PA / LNA. Alternatively, if the PA / LNA is deployed separately, the PA / LNA can also be included between the IF module and the antenna array of the communication device. In this implementation, if the communication device is used for signal transmission, the input signal of the demodulator can be the signal output by the PA. If the communication device is used for signal reception, the signal output by the demodulator can be the input signal of the LNA.

[0106] In one embodiment, the communication device includes a processing module configured to implement the functions of the modulation module. Furthermore, the communication device may also include a decision module configured to determine whether the communication device is currently operating in the first mode or the second mode and whether a switch is required. Alternatively, the decision function may be integrated into the processing module of the communication device, which is not limited in this application.

[0107] In one embodiment, in the above-mentioned embodiment of the present application, the switching between the first mode and the second mode can be specifically achieved by a modulator + demodulator, a switching circuit and a power divider (also called a power distributor) + combiner. Among them, the modulator + demodulator is used to load code words, and the switching between direct processing and spread spectrum / despread processing is achieved by loading the transformation of different code words. The switching circuit is used to connect or close the intermediate frequency module. The power divider + combiner is used to realize power distribution and merging of the communication device working in the second mode, wherein the power divider can be used to divide the energy of one input signal into two or more outputs, and the combiner can be used to synthesize the energy of multiple signals into one output.

[0108] For example, using the DBF / DHBF architecture as an example, as shown in Figure 11, when switch 1 is in position A, IF 1 is connected; when switch 1 is in position B, IF 1 is disconnected. Similarly, when switch 5 is in position A, IF 2 is turned off, and IF 1 is shared via the combiner; when switch 5 is in position B, IF 2 is connected. Furthermore, by controlling switches 3, 4, and 6 to A, the signal processed and output by IF 1 is split by the power splitter to different demodulators and transmitted through different antenna arrays.

[0109] Similarly, when the communication device operates in the first mode, a constant codeword can be loaded through the modulator, and the modulator performs direct processing. In addition, by controlling the switch circuit, intermediate frequency channels 1, 2, 3, and 4 are all connected, so that each intermediate frequency channel and the radio frequency channel operate normally. At this time, the signal bandwidth of each channel is normal, as represented by signal bandwidth (BW). For example, the signal bandwidth of each channel can be BW = 200 MHz.

[0110] If the communication device switches to the second mode, a non-constant codeword can be loaded through the modulator to perform spread spectrum and despreading processing; in addition, by controlling the switch circuit, some intermediate frequency channels can be turned off. For example, as shown in Figure 11, intermediate frequency 1 can be kept connected, and intermediate frequencies 2, 3, and 4 can be turned off. At this time, the signal bandwidth of each channel can be BW / N. For example, N=4, the signal bandwidth is 50MHz. In the above embodiment, the intermediate frequency bandwidth after spread spectrum is not increased. When the same PA is used, the power spectrum density within the bandwidth is increased and the signal-to-noise ratio is improved.

[0111] In one possible implementation, the demodulator can also be located between the RF module and the antenna array, as shown in Figure 12. That is, when the communication device is used to transmit signals, the demodulator processes the transmit signal before the RF module, and the RF module's output signal serves as the demodulator's input signal. When the communication device is used to receive signals, the demodulator processes the receive signal after the RF module, and the RF module's input signal serves as the demodulator's output signal. Similar to the embodiment described in Figure 11, the communication device can switch between a first mode and a second mode.

[0112] In the above-described implementation, by introducing code domain degrees of freedom into the DBF / DHBF system, the communication device can dynamically adjust its operating mode based on changes in traffic load. By controlling the switching circuit and the transformation of the modulator-loaded codewords, it can switch between the first mode and the second mode. In low- to medium-load scenarios, the communication device switches to the second mode and shuts down some intermediate frequency channels, thereby reducing power consumption without sacrificing antenna array gain or degrading system performance. In high-load scenarios, the communication device maintains the original system architecture and signal bandwidth, maintaining system performance.

[0113] It should be noted that the above embodiments use the DBF / DHBF architecture as an example, but this does not limit the scope of implementation of this application. This application is also applicable to the ABF / AHBF architecture, and the implementation methods are similar to those described above. The following will introduce the implementation methods applied to the ABF / AHBF architecture with reference to specific embodiments.

[0114] In the DBF / DHBF architecture, one IF module in a communication device is connected to one RF module, while in the ABF / AHBF architecture, one IF module is connected to multiple RF modules. In the example of the ABF / AHBF architecture shown in Figure 13, M is 2, indicating two IF modules, each of which is connected to two RF modules. Therefore, N is 4, indicating a total of four beamforming channels. By adding functions such as modulators, demodulators, switching circuits, combiners, and dividers, the communication device can dynamically adjust whether to operate in the first or second mode based on changes in traffic load.

[0115] Specifically, when switches 1 and 2 shown in FIG13 are both turned on B, the modulation module uses a constant codeword signal to pass through, and the communication device switches to the first mode, maintaining the system performance of the original ABF / AHBF architecture without being affected. When switches 1 and 2 shown in FIG13 are both turned on A, the modulation module uses a non-constant codeword to spread and despread the signal, and the communication device switches to the second mode. Under the same number of channels, the system architecture can be changed from ABF / AHBF to DBF / DHBF, without increasing the number of channels but with a faster transmission rate and improved communication performance. In addition, the time required to transmit the same data is shorter, and the proportion of shutdown timing is larger, which can reduce average power consumption, so energy saving and efficiency can be achieved in this scenario. In addition, in the second mode, each digital channel of the communication device only transmits part of the bandwidth (such as BW / N, if N is 4), without increasing the intermediate frequency bandwidth after spread spectrum, while also enhancing the power spectrum density of the transmitted signal, and making time domain and frequency domain resource scheduling more flexible.

[0116] In one possible implementation, in the aforementioned communication device, the positions of the RF module and demodulator can be interchanged. In the communication device shown in FIG14 , the RF module may not include a PA / LNA, and the PA / LNA is located between the IF module and the RF module. In the communication device shown in FIG14 , the positions of the RF module and demodulator can be interchanged.

[0117] In addition, the present application also provides an implementation method applied to the DBF / DHBF architecture, where each intermediate frequency channel is connected to multiple radio frequency channels. By adding a modulation module and a switching circuit to each intermediate frequency channel, the modulation module is used to load codewords, and can operate in both direct mode and spread spectrum and despread mode; the switching circuit is used to realize the switching of the working mode of the communication device.

[0118] As shown in Figure 15, by loading codeword transformations on the modulation module, the communication device's functional switching can be achieved. When the modulation module uses a constant codeword, the signal is processed directly, and the operating mode is switched by switching the switch circuit. The communication device operates in the first mode, each IF channel operates normally, and the system operates in performance mode. When the modulation module uses a non-constant codeword, the signal is spread and despread, and the operating mode is switched by switching the switch circuit. The communication device operates in the second mode, and unconnected IF modules can be turned off. For example, IF 2 can be turned off as shown in Figure 15, and the system architecture operates in energy-saving mode.

[0119] In another embodiment, the RF module in Figure 15 may include phase and amplitude control circuits but not the PA / LNA. The PA / LNA may also be deployed between the IF module and the demodulator. For example, as shown in Figure 16 , the PA / LNA may be deployed separately between the demodulator and the RF module. Alternatively, in another embodiment, the PA / LNA may also be deployed between the IF module and the demodulator.

[0120] In the above-mentioned implementation of the present application, by introducing the code domain degree of freedom into the ABF / AHBF system, the communication device can dynamically adjust the system operating mode according to the change of business load. Specifically, in the high business load scenario, the modulation module of the communication device adopts a constant codeword to directly process the signal, without changing the original architecture and signal bandwidth, and without affecting the system performance; while in the medium and low business load scenario, the modulation module adopts a non-constant codeword to spread and despread the signal. The communication device can close some intermediate frequency channels to reduce system power consumption without losing antenna array gain and affecting system performance. In addition, each digital channel only transmits part of the bandwidth (such as BW / N, such as N can be 2), without increasing the intermediate frequency bandwidth after spread spectrum, and at the same time can also enhance the power spectrum density of the transmitted signal.

[0121] Based on the above embodiments, the present application further provides a communication device. As shown in FIG17 , the communication device 1700 includes a processing module 1701 .

[0122] Among them, the processing module 1701 can be used to, when the communication device 1700 operates in the first mode, the N channels perform direct-through processing on the input signal; when the communication device 1700 operates in the second mode, the N channels perform spread spectrum and despreading processing on the input signal; and turn off some intermediate frequency modules, wherein the N channels share one or more intermediate frequency modules that are not turned off, and N is a positive integer greater than 1.

[0123] In one embodiment, the processing module 1701 includes a modulation module. In the first mode, each of the N channels is loaded with a constant codeword through the modulation module.

[0124] In one embodiment, the processing module 1701 includes a modulation module. In the second mode, each of the N channels is loaded with a non-constant codeword through the modulation module.

[0125] In one embodiment, the current service load indicator of the communication device 1700 is associated with the number of closed intermediate frequency channels.

[0126] In one embodiment, the communication device 1700 may further include a decision module 1702, which may be used to: when the current business load indicator of the communication device 1700 is greater than or equal to a first threshold, determine that the communication device 1700 is operating in a first mode; when the current business load indicator of the communication device 1700 is less than or equal to a second threshold, determine that the communication device 1700 is operating in a second mode.

[0127] In one embodiment, N channels include M IF modules, each of which is connected to one or more RF modules. Optionally, each RF module may also be connected to a power amplifier module, such as a PA / LNA. In other words, each IF module may be connected to one or more power amplifier modules. M is a positive integer greater than 1, and N is greater than or equal to M.

[0128] In one embodiment, the modulation module includes a modulator and a demodulator, wherein the modulator is used to load a code word and perform spread spectrum processing on an input signal, and the demodulator is used to load a code word and perform despreading processing on the input signal.

[0129] In one embodiment, if the communication device 1700 is used to transmit signals, the input signal of the demodulator is the signal output by the intermediate frequency module, or the input signal of the demodulator is the signal output by the radio frequency module, or the input signal of the demodulator is the signal output by the power amplifier module; if the communication device 1700 is used to receive signals, the signal output by the demodulator is the input signal of the intermediate frequency module, or the signal output by the demodulator is the signal input by the radio frequency module, or the signal output by the demodulator is the input signal of the power amplifier module.

[0130] Specifically, the communication device 1700 can implement the functions of the communication device described in each of the possible implementation modes described above. For details, please refer to the detailed descriptions in the aforementioned method examples, which will not be repeated here.

[0131] It will be understood that, in conjunction with FIG2 , when the structure of the communication device is the communication device 200 shown in FIG2 , the processing module 1701 may be a processor, such as a baseband chip. When the communication device 1700 is a component having the functions of the communication device in the above-mentioned embodiment, the processing module 1701 may be a processor. When the device is a chip system, the processing module 1701 may be a processor of the chip system, such as a central processing unit (CPU).

[0132] It should be noted that the specific execution process and embodiments in the above-mentioned device can refer to the steps and related descriptions executed by the communication device in the above-mentioned method embodiment, and the technical problems solved and the technical effects brought about can also refer to the contents described in the above-mentioned embodiments, and will not be repeated here one by one.

[0133] In this embodiment, the device is presented in the form of integrated functional modules. "Module" here can refer to specific circuits, processors and memories that execute one or more software or firmware programs, integrated logic circuits, and / or other devices that can provide the aforementioned functions. In a simple embodiment, those skilled in the art will appreciate that the sidelink transmission device can take the form shown in Figure 2 above.

[0134] Exemplarily, the functions / implementation processes of the processing module 1701 in FIG. 17 may be implemented by the processor 201 in FIG. 2 calling computer program instructions stored in the memory 204 .

[0135] In some embodiments, the processor 201 in Figure 2 can call the computer execution instructions stored in the memory 204 so that the device 200 can execute the operations performed by the communication device in the above-mentioned method embodiments, thereby realizing the above-mentioned possible implementation methods of the present application.

[0136] The communication device 1700 in the above-mentioned device embodiment may completely correspond to the communication device in the method embodiment, and the corresponding steps are performed by corresponding modules or units.

[0137] In an exemplary embodiment, a computer-readable storage medium including instructions or a computer program product is also provided. The instructions can be executed by the processor 201 of the communication device 200 to perform the method of the above embodiment. Therefore, the technical effects that can be achieved can be referred to the above method embodiment and will not be repeated here.

[0138] The present application also provides a computer program product, which includes instructions. When the instructions are executed, the computer can respectively perform operations of a terminal device or a network device corresponding to the above method.

[0139] The present application also provides a system-on-chip (SoC) comprising a processing unit and a communication unit. The processing unit may be, for example, a processor, and the communication unit may be, for example, an input / output interface, a pin, or a circuit. The processing unit may execute computer instructions to cause a communication device implemented by the SoC to perform the operations of the communication device described in the method provided in the embodiment of the present application.

[0140] Optionally, any one of the communication devices provided in the above embodiments of the present application may include the system chip.

[0141] Optionally, the computer instructions are stored in a storage unit.

[0142] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.

[0143] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of this application and include common knowledge or customary techniques in the art that are not disclosed herein.

[0144] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication device, comprising N beamforming channels, characterized in that: The communication device comprises: A processing module, configured to, when the communication device operates in a first mode, enable the N channels to directly process input signals; The processing module is also used for, when the communication device operates in the second mode, the N channels perform spread spectrum and despread processing on the input signal; and turn off some intermediate frequency modules, wherein the N channels share one or more intermediate frequency modules that are not turned off, and N is a positive integer greater than 1.

2. The device according to claim 1, characterized in that The processing module includes a modulation module. In the first mode, each of the N channels is loaded with a constant codeword through the modulation module.

3. The device according to claim 1, characterized in that The processing module includes a modulation module. In the second mode, each of the N channels is loaded with a non-constant codeword through the modulation module.

4. The device according to any one of claims 1 to 3, characterized in that: The current service load indicator of the communication device is associated with the number of the closed intermediate frequency channels.

5. The device according to any one of claims 1 to 4, characterized in that: The communication device further includes a decision module, wherein the decision module is configured to: When the current service load indicator of the communication device is greater than or equal to a first threshold, determining that the communication device operates in a first mode; When the current service load indicator of the communication device is less than or equal to a second threshold, it is determined that the communication device operates in the second mode.

6. The device according to any one of claims 1 to 5, characterized in that: The N channels include M intermediate frequency modules, each intermediate frequency module is connected to one or more radio frequency modules and / or power amplifier modules, wherein M is a positive integer greater than 1, and N is greater than or equal to M.

7. The device according to claim 2 or 3, characterized in that The modulation module includes a modulator and a demodulator, wherein the modulator is used to load code words and perform spread spectrum processing on input signals, and the demodulator is used to load code words and perform despreading processing on input signals.

8. The device according to claim 7, characterized in that If the communication device is used to transmit a signal, the input signal of the demodulator is a signal output by an intermediate frequency module, or the input signal of the demodulator is a signal output by a radio frequency module, or the input signal of the demodulator is a signal output by a power amplifier module; If the communication device is used to receive signals, the signal output by the demodulator is the input signal of the intermediate frequency module, or the signal output by the demodulator is the input signal of the radio frequency module, or the signal output by the demodulator is the input signal of the power amplifier module.

9. A communication method, applied to a communication device, wherein the communication device comprises N beamforming channels, characterized in that: The method comprises: When the communication device operates in the first mode, the N channels perform direct processing on the input signal; When the communication device operates in the second mode, the N channels perform spread spectrum and despreading processing on the input signal; and turn off some intermediate frequency modules, wherein the N channels share one or more intermediate frequency modules that are not turned off, and N is a positive integer greater than 1.

10. The method according to claim 9, characterized in that In the first mode, each of the N channels is loaded with a constant codeword through a modulation module.

11. The method according to claim 9, characterized in that In the second mode, each of the N channels is loaded with a non-constant codeword through a modulation module.

12. The method according to any one of claims 9 to 11, characterized in that: The current service load indicator of the communication device is associated with the number of the closed intermediate frequency channels.

13. The method according to any one of claims 9 to 12, characterized in that: The method further comprises: When the current service load indicator of the communication device is greater than or equal to a first threshold, determining that the communication device operates in a first mode; When the current service load indicator of the communication device is less than or equal to a second threshold, it is determined that the communication device operates in the second mode.

14. The method according to any one of claims 9 to 13, characterized in that: The N channels include M intermediate frequency modules, each intermediate frequency module is connected to one or more radio frequency modules and / or power amplifier modules, wherein M is a positive integer greater than 1, and N is greater than or equal to M.

15. The method according to claim 10 or 11, characterized in that: The modulation module includes a modulator and a demodulator, wherein the modulator is used to load code words and perform spread spectrum processing on input signals, and the demodulator is used to load code words and perform despreading processing on input signals.

16. The method according to claim 15, characterized in that If the communication device is used to transmit a signal, the input signal of the demodulator is a signal output by an intermediate frequency module, or the input signal of the demodulator is a signal output by a radio frequency module, or the input signal of the demodulator is a signal output by a power amplifier module; If the communication device is used to receive signals, the signal output by the demodulator is the input signal of the intermediate frequency module, or the signal output by the demodulator is the input signal of the radio frequency module, or the signal output by the demodulator is the input signal of the power amplifier module.

17. A communication device, characterized in that: The communication device comprises: processor; A memory coupled to the processor, the memory storing computer program code, wherein the computer program code comprises instructions, and when the instructions are executed by the processor, the communication device executes the method according to any one of claims 9 to 16.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium is located in a communication device, and the computer-readable storage medium stores a computer program code, wherein the computer program code includes instructions, and when the instructions are executed, the communication device executes the method according to any one of claims 9 to 16.

19. A chip, characterized in that: The chip is located in a communication device, the chip includes a processor and a memory coupled to the processor, the memory stores computer program code, and the computer program code includes instructions. When the instructions are executed by the processor, the communication device executes the method as described in any one of claims 9 to 16.

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