Communication method and communication apparatus

Abstract

Embodiments of the present application relate to the technical field of communications, and disclosed are a communication method and a communication apparatus, for use in reasonably configuring resources for a terminal device in a low power consumption mode. The terminal device is configured to be in a first mode among multiple modes, the multiple modes at least include the first mode and a second mode, and the power consumption of the terminal device in the first mode is less than the power consumption of the terminal device in the second mode. The method comprises: a terminal device acquires channel quality information between the terminal device and a network device, and sends the channel quality information to the terminal device.

Description

Communication method and communication device

[0001] This application claims priority from the Chinese patent application filed with the State Intellectual Property Office on November 30, 2023, with application number 202311638538.0 and application name “Communication Method and Communication Device,” all contents of which are incorporated by reference into this application. Technical Field

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

[0003] With the development of communication technology, the capabilities of terminal devices are becoming increasingly advanced, and accordingly, the amount of hardware in terminal devices is also increasing. As the hardware of terminal devices increases, the power consumption of terminal devices also increases when they are working, which to some extent reduces the user experience.

[0004] To reduce the power consumption of terminal devices, zero-power technology (also known as near-zero-power technology) has been introduced. Based on zero-power technology, terminal devices can use fewer resources (such as antennas and links) to transmit data. However, how to properly schedule resources for terminal devices using zero-power technology remains an unresolved issue.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a communication method and a communication device for meeting transmission requirements in high-throughput scenarios.

[0007] In a first aspect, a communication method is provided, comprising: a terminal device obtaining channel quality information between the terminal device and a network device, and sending the channel quality information to the network device. The terminal device is configured in a first mode among multiple modes, the multiple modes including at least the first mode and the second mode, and power consumption of the terminal device in the first mode is less than power consumption in the second mode.

[0008] Based on this technical solution, when a terminal device is configured in the first of multiple modes, the terminal device can obtain channel quality information between it and the network device and send the channel quality information to the network device. In this way, the channel can assist the network device in resource scheduling. Because the power consumption of the terminal device in the first mode is lower than that in the second mode, based on this channel quality information, the network device can reasonably allocate resources to the terminal device in the low-power mode.

[0009] In some examples, the power consumption of the terminal device in the first mode is less than that in the second mode, including at least one of the following: the number of antennas used by the terminal device in the first mode is less than the number of antennas used in the second mode, the bandwidth configured by the terminal device in the first mode is less than the bandwidth configured in the second mode, the signal opportunities monitored by the terminal device in the first mode are less than the channel opportunities monitored in the second mode, the functions supported by the terminal device in the first mode are less than the functions supported in the second mode, the maximum amount of transmitted data of the terminal device in the first mode is less than a preset threshold, and the minimum amount of transmitted data in the second mode is greater than a preset threshold.

[0010] In a possible implementation, the terminal device may also obtain environmental information of its location, so that the terminal device may obtain channel quality information based on the environmental information.

[0011] In one example, the manner in which the terminal device obtains environmental information may include at least: a switching instruction for indicating cell switching, a system information block (SIB) broadcast signal, and request information for obtaining environmental information.

[0012] In one possible implementation, after sending a physical random access channel (PRACH) to a network device, the terminal device may send a physical uplink shared channel (PUSCH) to the network device after a preset time period. The PUSCH carries channel quality information.

[0013] Among them, PRACH is associated with PUSCH.

[0014] In one example, the channel quality information may include channel information of one or more cells accessed by the terminal device and / or access beam information.

[0015] In a possible implementation, the terminal device is configured with a first module and a second module, and the power consumption of the terminal device when using the first module is less than the power consumption when using the second module.

[0016] Based on this approach, the terminal device may use the first module to obtain channel quality information, and send the channel quality information to the network device through the first module.

[0017] The first module is a module that supports low-power technology. The low-power module technology may include at least one of the following: chirp technology, on-off keying (OOK) technology, and ambient internet of things (A-IoT) technology.

[0018] In a possible implementation, when the first trigger condition is met, the terminal device sends the channel quality information to the network device. In this way, the terminal device can send the channel quality information based on the first trigger condition to avoid signaling waste.

[0019] In some examples, the first trigger condition may include at least one of the following: there is a data transmission demand between the terminal device and the network device, the channel quality between the terminal device and the network device is higher than a preset threshold, there is a change in the channel quality between the terminal device and the network device, the terminal device switches from the second mode to the first mode, and the feedback time of the channel quality information is reached.

[0020] In one possible implementation, the terminal device may obtain a time-frequency resource for transmitting channel quality information, and transmit a reflected signal to the network device based on the time-frequency resource, wherein the reflected signal carries the channel quality information.

[0021] Based on this implementation method, the terminal device can send channel quality information on the time-frequency resources obtained for sending channel quality information. In this way, the network device can also determine the resources for receiving channel quality information based on the time-frequency resources, thereby ensuring information synchronization between the terminal device and the network device.

[0022] In one possible implementation, a terminal device may be configured with multiple sets of transmission resources. In response to a trigger signal from a network device, the terminal device may reflect a feedback signal corresponding to the trigger signal onto the highest-quality transmission resource among the multiple sets of transmission resources. In this way, the network device can determine the channel with the lowest channel quality between the terminal device and the network device based on the transmission resource carrying the feedback information.

[0023] In one possible implementation, after receiving a trigger signal, the terminal device receives a channel-state information reference signal (CSI-RS) after a preset duration and obtains channel quality information based on the CSI-RS. The trigger signal includes any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal.

[0024] Based on this method, the terminal device can use a two-part random access method to feedback channel quality information, which can reduce signaling overhead.

[0025] In a possible implementation, when the second trigger condition is met, the terminal device stops channel measurement.

[0026] In one example, the second trigger condition may include at least one of the following: receiving a mode switching instruction for instructing switching from the first mode to the second mode, receiving a context release indication, and timer expiration.

[0027] In a possible implementation, the terminal device may further send capability information of the terminal device to the network device. The capability information is used to indicate the modes supported by the terminal device.

[0028] In one example, the capability information of the terminal device may include public capabilities and dedicated capabilities of multiple modes. The dedicated capabilities of the multiple modes may include at least dedicated capabilities of a first mode and dedicated capabilities of a second mode.

[0029] According to a second aspect, a communication method is provided, comprising: a network device receiving channel quality information reported by a terminal device, and allocating resources for the terminal device based on the channel quality information. The terminal device is configured in a first mode among multiple modes, the multiple modes including at least the first mode and the second mode, and power consumption of the terminal device in the first mode is less than power consumption in the second mode.

[0030] Based on this technical solution, after receiving channel quality information reported by a terminal device in a low power consumption mode, the network device can reasonably configure resources for the terminal device based on the channel quality information.

[0031] In a possible implementation, the network device may configure the aforementioned multiple modes for the terminal device. The aforementioned channel quality information is fed back by the terminal device to the network device in the first mode.

[0032] In a possible implementation, the network device may send environment information to the terminal device.

[0033] In this way, the terminal device can perform channel estimation or channel reconstruction based on the environmental information, thereby obtaining channel quality information.

[0034] In a possible implementation, after receiving the PRACH from the terminal device, the network device receives the PUSCH sent from the terminal device and carrying the channel quality information after a preset time interval.

[0035] In one example, the channel quality information may also be carried in a feedback signal reflected by the terminal device, where the feedback signal includes at least one of the following: a chirp signal, an OOK signal, and an A-IoT signal.

[0036] In a possible implementation, the network device may further send time-frequency resources to the terminal device, and the time-frequency resources may be used to receive the channel quality information. In this way, based on the time-frequency resources, the network device may accurately receive the channel quality information.

[0037] In one possible implementation, the network device may configure multiple transmission resources for the terminal device.

[0038] In conjunction with this implementation, the network device may further send a trigger signal to the terminal device and receive a feedback signal corresponding to the trigger signal on a first transmission resource. The first transmission resource is a transmission resource with the best quality among the multiple groups of transmission resources.

[0039] In a possible implementation, the network device may further send a trigger signal to the terminal device, and after a preset time period, send a CSI-RS to the terminal device.

[0040] The trigger signal may include any one of a paging signal, a conflict resolution MAC CE, and a MSG B signal.

[0041] In a third aspect, a communication device is provided for implementing the various methods described above. The communication device may be a terminal device described in the first aspect or any of its implementations, or a device having the functions of the terminal device described above, or a device included in the terminal device, such as a chip. The communication device includes modules, units, or means corresponding to the methods described above. The modules, units, or means may be implemented in hardware, software, or by executing corresponding software implementations in hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0042] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, also referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof.

[0043] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation methods.

[0044] In a fourth aspect, a communication device is provided for implementing the various methods described above. The communication device may be the network device described in the first aspect or any of its implementations, or a device having the functions of the network device described above, or a device included in the network device described above, such as a chip. The communication device includes modules, units, or means corresponding to the methods described above. The modules, units, or means may be implemented in hardware, software, or by executing corresponding software implementations in hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

[0045] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, also referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof.

[0046] In some possible designs, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementation methods.

[0047] In a fifth aspect, a communication device is provided, comprising: at least one processor; the processor is used to execute a computer program or instruction stored in a memory through a logic circuit and / or communication, so that the communication device executes the method described in any one of the above aspects.

[0048] In a possible implementation, the communication device further includes the memory. Optionally, the memory is integrated with the processor, or the memory may be independent of the processor.

[0049] In a possible implementation, the memory is independent of the communication device.

[0050] In a possible implementation, the communication device further includes a communication interface, which is used to communicate with a module outside the communication device.

[0051] The communication device may be a terminal device in the above-mentioned first aspect or any implementation manner thereof, or a device included in the above-mentioned terminal device, such as a chip.

[0052] In a sixth aspect, a communication device is provided, comprising: at least one processor; the processor is used to execute a computer program or instruction stored in a memory through a logic circuit and / or communication, so that the communication device executes the method described in any one of the above aspects.

[0053] In a possible implementation, the communication device further includes the memory. Optionally, the memory is integrated with the processor, or the memory may be independent of the processor.

[0054] In a possible implementation, the memory is independent of the communication device.

[0055] In a possible implementation, the communication device further includes a communication interface, which is used to communicate with a module outside the communication device.

[0056] The communication device may be the terminal device in the above-mentioned second aspect or any implementation manner thereof, or a device included in the above-mentioned terminal device, such as a chip.

[0057] In the seventh aspect, a computer-readable storage medium is provided, which stores a computer program or instruction. When the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any of the above aspects or any of its implementation methods.

[0058] In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a communication device, enables the communication device to execute the method described in any one of the above aspects or any one of its implementations.

[0059] In a ninth aspect, a communication device is provided (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the functions involved in any of the above aspects or any of its implementation methods.

[0060] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0061] In some possible designs, when the device is a chip system, it can be composed of a chip or include a chip and other discrete devices.

[0062] It can be understood that when the communication device provided in any one of the third to ninth aspects is a chip, the above-mentioned sending action / function can be understood as output, and the above-mentioned receiving action / function can be understood as input.

[0063] Among them, the technical effects brought about by any design method in the second to ninth aspects can refer to the technical effects brought about by the different design methods in the above-mentioned first aspect, and will not be repeated here.

[0064] In a tenth aspect, a communication system is provided, comprising a terminal device and a network device. The terminal device can execute the method described in the first aspect or any implementation thereof, and the network device can execute the method described in the second aspect or any implementation thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] FIG1 is a schematic diagram of a data transmission process provided by an embodiment of the present application;

[0066] FIG2 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0067] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0068] FIG4 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0069] FIG5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0070] FIG6 is a flow chart of a communication method provided in an embodiment of the present application;

[0071] FIG7 is a schematic diagram of the structure of channel quality information provided in an embodiment of the present application;

[0072] FIG8 is a flow chart of another communication method provided in an embodiment of the present application;

[0073] FIG9a is a schematic diagram of sending channel quality information provided by an embodiment of the present application;

[0074] FIG9b is a schematic diagram of the structure of another channel quality information provided in an embodiment of the present application;

[0075] FIG10 is a flow chart of another communication method provided in an embodiment of the present application;

[0076] FIG11 is a schematic diagram of multiple groups of resources configured in a terminal device according to an embodiment of the present application;

[0077] FIG12 is a flow chart of another communication method provided in an embodiment of the present application;

[0078] FIG13a is a schematic diagram of a flow chart of another communication method provided in an embodiment of the present application;

[0079] FIG13b is an example diagram of capability information of a terminal device provided in an embodiment of the present application;

[0080] FIG14 is a schematic structural diagram of a terminal device 1400 provided in an embodiment of the present application;

[0081] FIG15 is a schematic structural diagram of a network device 1500 provided in an embodiment of the present application. DETAILED DESCRIPTION

[0082] In order to facilitate understanding of the embodiments of the present application, the following explanations are made before introducing the embodiments of the present application.

[0083] 1. In the embodiments of the present application, "network element" and "node" can be logical entities or physical entities. In other words, in the embodiments of the present application, "device" can be used interchangeably with "network element" and will be described here as a unified description and will not be repeated below.

[0084] 2. In the embodiments of the present application, for the convenience of description, when numbering or indexing is involved, the consecutive numbering can start from 1, the consecutive numbering can also start from 0, or the numbering can start from any parameter.

[0085] 3. "Pre-definition," "pre-configuration," or "protocol agreement" may be achieved by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a network device or terminal device). The present application does not limit the specific implementation method. "Storage" may mean storage in one or more memories.

[0086] 4. The “protocol” involved in the embodiments of the present application may refer to a standard protocol in the field of communications, for example, it may include the long term evolution (LTE) protocol, the new radio (NR) protocol, and related protocols used in future communication systems (such as the 6th generation (6G) communication system). The embodiments of the present application are not limited to this.

[0087] 5. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if" and "if" all mean that the device will perform corresponding processing under certain objective circumstances. They do not limit the time, nor do they require the device to perform judgment actions when implemented, nor do they mean that there are other limitations.

[0088] 6. In the embodiments of the present application, “sending information to…(network device)” can be understood as the destination end of the information being the network device, and can include sending information to the network device directly or indirectly. “Receiving information from…(terminal device)” or “receiving information from…(terminal device)” can be understood as the source end of the information being the terminal device, and can include receiving information from the terminal device directly or indirectly. The information may be processed as necessary between the source end and the destination end of the information transmission, such as format changes, etc., but the destination end can understand the valid information from the source end. Similar expressions in this application can be understood similarly and will not be repeated here.

[0089] 7. In the description of the embodiments of the present application, unless otherwise specified, the "and / or" in the embodiments of the present application indicates that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B can be singular or plural. Moreover, "at least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different. At the same time, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions.

[0090] With the continuous development of communication technology, the requirements for terminal device capabilities are becoming increasingly higher. For example, the improvement of network capabilities (such as 5G networks) requires higher speed requirements for terminal devices. For another example, for 5G networks, terminal devices need to support both NAS and SA networking modes. For another example, terminal devices need to support more frequency bands, larger bandwidths, and higher transmit power.

[0091] In order to improve the capabilities of terminal devices, the hardware configured in the terminal devices will increase accordingly, and accordingly, the power consumption of the terminal devices will also increase.

[0092] In some designs, to meet the high power consumption requirements of terminal devices, on the terminal side, the terminal device can adopt larger capacity batteries, low-power and high-performance components, or display screens with power-saving technology to extend the battery life of the terminal device. On the network side, while ensuring effective data transmission of the terminal device, various energy-saving communication technologies are used to reduce unnecessary power consumption of the terminal device, thereby achieving the purpose of saving power and energy for the terminal device. For example, the 3rd Generation Partnership Project (3GPP) protocol defines various energy-saving communication technologies, such as discontinuous reception (DRX), DRX wake-up signals, cross-slot scheduling, secondary cell dormancy, reduction of multiple-input multiple-output (MIMO) layers, reduction of the number of carriers, partial bandwidth (BWP) adaptation, paging advance indication, and adaptive adjustment of search space.

[0093] Through the above energy-saving communication technology, terminal devices can have more sleep time or use fewer components to work, thereby achieving the goal of reducing the energy consumption of terminal devices.

[0094] Each version of the 3GPP protocol has introduced new terminal energy-saving technologies. However, based on the benefits of terminal energy saving, 3GPP is still further exploring new terminal energy-saving technologies for use in the fifth-generation (5th) 5G system / NR system, or future 6G system.

[0095] For example, with the development of the Internet of Things (IoT), it has received widespread attention in the field of wireless communications. The 3GPP protocol has also introduced technologies for different types of IoT terminals in different versions, such as machine type communication (MTC), enhanced machine type communication (eMTC), narrowband Internet of Things (NB-IoT), and reduced capability terminals (RedCap).

[0096] Because most current wireless devices are battery-powered, they incur high maintenance costs, pose serious environmental risks, and even pose safety risks in certain scenarios. To further reduce the size, complexity, and power consumption of IoT devices, the Ambient IoT (A-IoT) technology has been introduced.

[0097] A-IoT technology can be called zero power device, near-zero power, passive, ambient backscatter communication (AmBC), passive reflection-based communication, etc. A-IoT technology can support devices without batteries or with limited energy storage capabilities. Terminals that support A-IOT technology can collect energy through radio waves, light, motion, heat or other suitable power sources. Therefore, compared with existing low-power and wide-coverage services (such as narrowband internet of things (NB IoT) and eMTC), AIoT technology has lower complexity and lower power consumption, enabling more application scenarios. For example, it can be applied to environmental backscatter systems.

[0098] Typically, an environmental backscatter system consists of three components: an ambient RF source, a backscatter device, and a reader. In an environmental backscatter communication system, backscatter devices draw energy from the ambient RF source and utilize the radio signals it broadcasts to communicate with each other. A zero-power device receives the carrier signal from the reader and uses the RF energy harvesting module to harvest energy for the low-power processing module. After harvesting energy, the backscatter tag drives the appropriate circuitry to adjust the incoming signal and perform backscattering.

[0099] In the future 6G system, in order to further reduce the energy consumption on the terminal side, the concept of a single radio resource control (RRC) state is introduced. The core idea is that unlike the three state transitions defined in the NR system, the Single RRC state only contains one RRC state, but there are two or more modes. In this application, two modes are used as examples, including: default mode and enhanced mode.

[0100] Among them, the default mode may also be called the first mode, low power mode, zero power mode, near-zero power mode or other names without limitation. The enhanced mode may also be called the second mode, normal mode, conventional mode or other names without limitation. The default mode is suitable for the transmission of small amounts of data, and the enhanced mode is suitable for the transmission of large amounts of data. In the enhanced mode, the number of antennas, bandwidth, beam tracking / management, etc. of the terminal device are increased as needed. In the default mode, the terminal device can use fewer antennas, narrower bandwidth, fewer link monitoring opportunities, fewer beam detections, etc. Therefore, compared with the enhanced mode, the terminal device can have lower power consumption in the default mode.

[0101] To enable the single RRC state, the terminal device can obtain two sets of configuration information after initially accessing the network device. The two sets of configuration information are applicable to the communication of the terminal device in the default mode and enhanced mode, respectively. Unlike the mode switching through RRC signaling in the NR system, in the single RRC state, since the terminal device can obtain the configuration information under different modes in advance, the terminal device can support fast mode changes of paging messages or downlink control information (DCI). At the same time, the terminal device also supports mode changes triggered by the base station and mode changes triggered by the terminal.

[0102] In addition, the NR protocol supports inactive UEs. For small data transmission (SDT), in order to reduce the data sending steps and simplify the process, the 3GPP protocol introduced small packet transmission for inactive UEs. That is, the terminal device can transmit small packet data in the inactive state without switching to the connected state. At the same time, the terminal device supports one or more small packet transmissions (such as subsequent uplink small packets (subsequent UL small data)). For subsequent uplink small packets, the base station can perform resource scheduling through dynamic scheduling. However, the NR protocol does not support CSI measurement and feedback, and the base station can use blind scheduling for data transmission.

[0103] For example, as shown in FIG1 , a flow chart of a multi-data packet transmission is shown, including:

[0104] S0. The UE is in RRC inactive connection management (CM)-connected state.

[0105] S1. The UE sends an RRC resume request, UL SDT data, and / or UL SDT signaling to the receiving next generation Node B (gNB).

[0106] S2. The Receiving gNB sends a RETRIEVE UE CONTEXT REQUEST (SDT indicator and assistance information) to the last serving gNB.

[0107] S3. The last serving gNB sends a RETRIEVE UE CONTEXT RESPONSE to the Receiving gNB.

[0108] S4: The last serving gNB decides to continue small data transmission in the RRC inactive state.

[0109] S5. Receiving: The gNB sends a path switch request to the access and mobility management function (AMF).

[0110] S6. The AMF returns a path switch request acknowledgment to the Receiving gNB.

[0111] S7. Receiving: The gNB sends the RRC release suspend config to the UE.

[0112] S8. The Receiving gNB sends a UE CONTEXT RELEASE message to the last serving gNB.

[0113] In FIG1 , the user plane function (UPF) can be used to forward small packet data.

[0114] However, for terminal devices in default mode, since the terminal devices are not configured with terminal-specific physical uplink control channels (PUCCH) and CSI-RS, the network side can only use blind scheduling to schedule resources. In order to ensure performance, the network side can usually only use low-order modulation and coding schemes (MCS) and relatively high control channel element (CCE) aggregation levels for resource scheduling, resulting in resource waste. For example, the terminal device is a near-point user and the channel quality is good, but since the network device does not obtain the channel information, the network side still uses quadrature phase shift keying (QPSK) modulation, resulting in larger time-frequency domain resources occupied, causing unnecessary resource waste. At the same time, for UEs in default mode, since CSI-RS is not configured, the terminal device cannot accurately perform channel measurements.

[0115] In view of this, an embodiment of the present application provides a communication method for assisting a network device in performing resource scheduling for a terminal device in default mode, thereby reasonably allocating resources to the terminal device. For a terminal device in default mode, the terminal device can perform channel measurement through sensing or public signals and feedback channel quality information to the network device to assist the network device in assisting scheduling, thereby improving the MSC and reducing the CCC aggregation level, thereby avoiding resource waste.

[0116] Perception can refer to performing channel measurements based on environmental information to obtain channel quality information. Common signals can include synchronization signals and physical broadcast channel block (SSB) signals. Based on these common signals, terminal devices can perform channel measurements to obtain signal quality information.

[0117] The technical solutions of the embodiments of the present application can be applied to wireless communication systems such as 5G, satellite communications, NB-IoT, global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE), and the three major application scenarios of the next generation 5G mobile communication system, namely eMBB, URLLC, and eMTC.

[0118] Wireless communication systems typically consist of cells, each containing a base station (BS). The BS provides communication services to multiple mobile stations (MSs). A base station consists of a baseband unit (BBU) and a remote radio unit (RRU). The BBU and RRU can be placed in different locations, for example: a remote RRU in a high-traffic area and a central equipment room. Alternatively, the BBU and RRU can be placed in the same equipment room. Alternatively, the BBU and RRU can be separate components within the same rack.

[0119] As shown in Figure 2, a communication system provided by an embodiment of the present application may include a terminal device and a network device. The terminal device and the network device are in communication connection.

[0120] Among them, the terminal device can also be called a user terminal, a mobile station, etc. The terminal device can be a user terminal (UE), an access terminal, a terminal unit, a user station, a terminal station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal, a user terminal (TE), a mobile device, a wireless communication device, a terminal agent, a tablet computer (pad), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a vehicle-mounted transceiver unit, a wearable device, or a terminal device in a fifth generation mobile communication technology (5G) network or a public land mobile network (PLMN) evolved after 5G. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a drone, a robot, a smart point of sale (POS) machine, a customer-premises equipment (CPE) or a wearable device, a virtual reality (VR) device. The terminal device may be a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Alternatively, the terminal device may be a terminal with communication function in the Internet of Things (IoT), such as a terminal in V2X (e.g., a vehicle-to-everything (V2X) device), a terminal in D2D communication, or a terminal in M2M communication. The terminal device may be mobile.

[0121] The embodiments of this application do not limit the form of the terminal device. The device used to implement the functions of the terminal device can be the terminal device; it can also be a device that supports the terminal device to implement the functions, such as a chip system. The device can be installed in the terminal device or used in conjunction with the terminal device. In the embodiments of this application, the chip system can be composed of a chip or include a chip and other discrete devices.

[0122] Among them, the network device can be used for terminal devices to communicate. For example, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in an LTE system or an enhanced LTE (LTE-advanced, LTE-A) system, such as a traditional macro base station eNB and a micro base station eNB in ​​a heterogeneous network scenario. Alternatively, it may include a next generation node B (next generation node B, gNB) in an NR system. Alternatively, it may include a transmission reception point (TRP), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a base band unit (BBU), a base band pool (BBU pool), or a wireless fidelity (WiFi) access point (AP), etc. Alternatively, it may include a base station in a non-terrestrial network (NTN), which can be deployed on an aircraft or satellite. In an NTN, the network device can function as a Layer 1 (L1) relay, a base station, or an integrated access and backhaul (IAB) node. Alternatively, the network device can be a device that implements base station functions in the IoT, such as drone communications, V2X, D2D, or machine-to-machine (M2M) communications.

[0123] In some possible scenarios, the network device may also be a module or unit that can implement some of the functions of the base station. For example, the network device may be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be configured separately or included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0124] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the network device may be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, CU may also be referred to as open (open, O)-CU, DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0125] Optionally, the base station in the embodiment of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, transmitting points (TPs), mobile switching centers, etc., and the embodiments of the present application do not make specific limitations on this.

[0126] In the embodiments of the present application, the form of the network device is not limited. The device used to implement the function of the network device can be a network device; it can also be a device that can support the network device to implement the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0127] Of course, the communication system provided in the embodiment of the present application may also include other network elements or devices, such as core network devices.

[0128] In some examples, the communication system shown in FIG. 2 may be a standalone (SA) communication system or a dual connectivity (DC) communication system.

[0129] For example, Figure 3 shows an SA communication system. In Figure 3, a terminal device is connected to a single network device, and a base station is connected to a core network device. The network device to which the terminal device is connected and the core network device to which the network device is connected are of the same standard, for example, both are 5G or both are 6G.

[0130] For another example, as shown in Figure 4, it is a DC communication system. In Figure 4, the terminal device can be connected to network devices of the same / different standards at the same time, and the terminal device is a connected UE. For example, the core network is a 5G core network (core), and the terminal device can be connected to a 5G network device and a 6G network device at the same time. The 5G network device can be the main station, and the 6G network device can be the auxiliary station. For another example, the core network is a 6G Core, and the terminal device can be connected to a 6G network device and a 5G network device at the same time. The 6G network device can be the main station, and the 5G network device can be the auxiliary station. For another example, the core network is a 6G Core, and the terminal device is connected to two 6G network devices at the same time, that is, the main station and the auxiliary station are both 6G network devices.

[0131] It should be noted that Figures 2 to 4 are exemplary figures, and the number of devices shown in Figures 2 to 4 and the naming of the interfaces between the devices in Figures 2 to 4 are not limited. In addition to the network elements shown in Figures 2 to 4, the communication systems shown in Figures 2 to 4 may also include other devices without limitation.

[0132] In specific implementation, the devices in Figures 2 to 4 can all adopt the composition structure shown in Figure 5, or include the components shown in Figure 5. Figure 5 is a schematic diagram of the composition of a communication device 500 provided in an embodiment of the present application. The communication device 500 can be a terminal device or a chip or system on chip in a terminal device. Alternatively, the communication device 500 can be a network device or a chip or system on chip in a network device. As shown in Figure 5, the communication device 500 includes a processor 501, a communication interface 502, and a communication line 503.

[0133] Furthermore, the communication device 500 may further include a memory 504 , wherein the processor 501 , the memory 504 and the communication interface 502 may be connected via a communication line 503 .

[0134] The processor 501 is 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 (PLD), or any combination thereof. The processor 501 may also be other devices with processing functions, such as circuits, devices, or software modules, without limitation.

[0135] Communication interface 502 is used to communicate with other devices or other communication networks. Such other communication networks may be Ethernet, radio access networks (RAN), wireless local area networks (WLAN), etc. Communication interface 502 may be a module, circuit, communication interface, or any other device capable of implementing communication.

[0136] The communication line 503 is used to transmit information between the components included in the communication device 500.

[0137] The memory 504 is used to store instructions, where the instructions may be computer programs.

[0138] The memory 504 may be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions, or a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, etc., without limitation.

[0139] It should be noted that the memory 504 can exist independently of the processor 501 or can be integrated with the processor 501. The memory 504 can be used to store instructions, program code, or some data. The memory 504 can be located within the communication device 500 or outside the communication device 500, without limitation. The processor 501 is configured to execute the instructions stored in the memory 504 to implement the data transmission method for short-range wireless communication provided in the following embodiments of the present application.

[0140] In an example, the processor 501 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 5 .

[0141] As an optional implementation, the communication device 500 includes multiple processors. For example, in addition to the processor 501 in FIG. 5 , it may also include a processor 507 .

[0142] As an optional implementation, the communication apparatus 500 further includes an output device 505 and an input device 506. For example, the input device 506 is a keyboard, a mouse, a microphone, a joystick, or the like, and the output device 505 is a display screen, a speaker, or the like.

[0143] It should be noted that the communication device 500 can be 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 structure similar to that shown in FIG5 . Furthermore, the structure shown in FIG5 does not limit the terminal device and the network device. In addition to the components shown in FIG5 , the terminal device and the network device may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0144] In the embodiment of the present application, the chip system can be composed of chips, or can include chips and other discrete devices.

[0145] In addition, the actions, terms, etc. involved in the various embodiments of this application can refer to each other without limitation. The names of information exchanged between various devices or the names of parameters in the information are only examples, and other names can also be used in specific implementations without limitation. The execution subject of the embodiments of this application can be a terminal device, or a component in a terminal device, such as a chip. It can also be a network device, or a component in a network device, such as a chip.

[0146] Based on the communication system shown in FIG2 , as shown in FIG6 , a communication method is provided in an embodiment of the present application, and the method includes S601 and S602 .

[0147] S601: The terminal device obtains channel quality information between the terminal device and the network device.

[0148] The terminal device is configured in a first mode among multiple modes. The multiple modes may include at least a first mode and a second mode. The first mode may be the default mode described above, and the second mode may be the enhanced mode described above. The power consumption of the terminal device in the first mode is less than that in the second mode.

[0149] Specifically, the power consumption of the terminal device in the first mode is less than the power consumption in the second mode, which may include at least one of the following: the number of antennas used by the terminal device in the first mode is less than the number of antennas used in the second mode, the bandwidth configured by the terminal device in the first mode is less than the bandwidth configured in the second mode, the signal timing monitored by the terminal device in the first mode is less than the signal timing monitored in the second mode, the functions supported by the terminal device in the first mode are less than the functions supported in the second mode, the maximum transmission data volume of the terminal device in the first mode is less than a preset threshold, and the minimum transmission data volume in the second mode is greater than a preset threshold (or, the maximum transmission data volume of the terminal device in the first mode is less than the minimum transmission data volume in the second mode).

[0150] In some examples, in embodiments of the present application, the terminal device may be configured with configuration information corresponding to the above-mentioned multiple modes, or the network device may configure the configuration information corresponding to the above-mentioned multiple modes for the terminal device. The configuration information corresponding to each mode may include the configuration parameters of the terminal device in that mode, for example, the number of antennas used, bandwidth, signal timing for monitoring, supported functions, amount of data transmitted (such as the maximum amount of data transmitted or the minimum amount of data transmitted), etc., without limitation. Based on the configuration information of different modes, the terminal device can determine the current mode it is in.

[0151] Furthermore, to implement mode switching, the terminal device may perform mode switching in response to a mode switching instruction for instructing the mode switching. For example, the mode switching instruction may be sent by the network device. For example, the mode switching instruction may be used to instruct switching from the first mode to the second mode or from the second mode to the first mode.

[0152] In some scenarios, after receiving a mode switching instruction for instructing switching from the second mode to the first mode, the terminal device may switch from the second mode to the first mode and obtain channel quality information.

[0153] In the embodiment of the present application, channel quality information may be referred to as channel auxiliary information, channel information, channel feedback information, channel auxiliary information media access control control element (MAC CE) or other names, without limitation. Channel quality information can be used to characterize the channel quality between a terminal device and a network device. For example, the channel quality information may include a reference signal received power (RSRP) of the channel, a channel quality indicator (CQI), and other parameters that can characterize the channel quality. Of course, the channel quality information may also include other information or parameters, such as channel information, beam information, quality of service (QoS), channel sounding reference signal (SRS), etc., without limitation.

[0154] In some examples, the channel quality information may also include channel information of one or more cells accessed by the terminal device and beam information accessed by the terminal device. The one or more cells may be cells of the network device or cells of other network devices, without limitation.

[0155] In another example, the channel quality information may include multiple time slots. For example, as shown in FIG7 , a schematic diagram of channel quality information reported by different UEs is shown. In FIG7 , P-time slot represents the time slot size of the feedback signal. A blank square indicates no feedback signal, and a filled square indicates a feedback signal. In FIG7 , the terminal device can feedback the terminal device identifier (UE ID) in the first 7 P-slots and feedback the channel quality in the last four P-slots.

[0156] In one possible implementation, the terminal device may obtain channel quality information between the terminal device and the network device based on sensing or a low-power module, or the terminal device may obtain channel quality information based on a trigger. The trigger may include a trigger signal, a trigger condition, etc. For details, please refer to the description of the following embodiments 1 and 2.

[0157] Among them, obtaining channel quality information based on perception may refer to performing channel measurement based on environmental information of the location to obtain channel quality information. Environmental information may include information on obstructions at the location of the terminal device (such as buildings, trees, etc.). For specific acquisition methods, please refer to the following embodiment one. Based on a low-power module may mean that the terminal device is configured with a low-power module, and the low-power module can obtain channel quality information based on a trigger signal. For specific acquisition methods, please refer to the following embodiment two. The low-power module can be called a first module, a low-energy consumption module or other names without limitation.

[0158] In another possible implementation, the terminal device may perform channel measurement based on configured measurement resources to obtain channel quality information.

[0159] The measurement resource may be configured by the network device for the terminal device. For example, the measurement resource may include information about multiple channels between the terminal device and the network device. For a specific acquisition method, please refer to the following embodiment 2.

[0160] S602: The terminal device sends channel quality information to the network device. Correspondingly, the network device receives the channel quality information from the terminal device.

[0161] In a possible implementation, the terminal device may send channel quality information to the network device based on a low power module or a 2-step RACH.

[0162] Among them, sending channel quality information to the network device based on the low-power module may refer to the low-power module of the terminal device feeding back a response signal corresponding to the trigger signal to the network device based on the trigger signal. The response signal may be channel quality information, or carry channel quality information. The 2-step random access channel (RACH) method may refer to the terminal device sending PRACH to the network device, and after a preset time, sending PUSCH to the network device. PUSCH carries channel quality information. Specifically, please refer to the following embodiments 1 and 2.

[0163] Furthermore, the method provided in the embodiment of the present application may also include: the network device performs resource scheduling based on the channel quality information.

[0164] Among them, resource scheduling can refer to configuring resources for terminal devices, for example, it can refer to scheduling MCS, determining the CCE aggregation level used by the terminal device, etc.

[0165] In one example, determining the CCE aggregation level of a terminal device based on channel quality information is used as an example. After receiving the channel quality information sent by the terminal device, the network device can determine whether the terminal device belongs to a far-point user or a near-point user based on the channel quality information. The channel quality between the far-point user and the network device is poor, for example, it can be less than a first threshold. The channel quality between the near-point user and the network device is good, for example, it can be greater than the first threshold. The first threshold can be set as needed and is not limited.

[0166] Based on the technical solution in Figure 6, for terminal devices in low-power mode, the terminal device can obtain channel quality information between it and the network device and send the obtained channel quality information to the network device. In this way, the network device can reasonably allocate resources for the terminal device or perform resource scheduling based on the channel quality information fed back by the terminal device. Compared to blind scheduling, because the network device can accurately and reasonably allocate resources for the terminal device based on channel quality information, unnecessary resource waste can be avoided.

[0167] In some embodiments (implementation one), the terminal device obtains channel quality information based on perception and sends the channel quality information to the network device. Specifically, as shown in FIG8 , the process may include S801 to S803:

[0168] S801. The terminal device obtains environmental information of its location.

[0169] The environmental information may be used for channel estimation, for example, the environmental information may include an environmental map.

[0170] In one possible implementation, the terminal device may obtain the environmental information of its location based on dedicated signaling or broadcast information.

[0171] In one example, a terminal device may send a request message for obtaining environmental information to a network device. Accordingly, after receiving the request message from the terminal device, the network device may send environmental information to the terminal device. For example, the request message may include the location information (such as coordinate data) of the terminal device. Based on the location information, the network device may obtain the environmental information of the location of the terminal device and send the environmental information to the terminal device. The network device may be pre-configured with environmental information of the service area (or coverage area), or the network device may also obtain environmental information from other devices, such as from a core network device, without limitation.

[0172] In some scenarios, the above environmental information can be carried in handover signaling. Handover signaling can be sent by a network device to a terminal device when the terminal device performs a cell handover. This handover signaling can be used to instruct the terminal device to switch from a source cell to a target cell. This handover signaling can include a reconfiguration message for the target cell and may also include environmental information.

[0173] In some other scenarios, the request information may be a separate signaling. For example, after the terminal device reselects a new cell, it may send a request information for obtaining environmental information to the network device.

[0174] In another example, a terminal device can obtain environmental information from a broadcast signal from a network device. That is, the network device can send the environmental information via a broadcast. The broadcast signal can be a SIB broadcast signal. In this way, the terminal device can receive the broadcast signal from the network device and obtain the environmental information.

[0175] S802. The terminal device obtains channel quality information based on the environmental information.

[0176] In some examples, the terminal device can determine its location based on the global positioning system (GPS) or other positioning methods, and combined with the environmental map information, the terminal device can obtain information about obstructions and surrounding objects at its location. Based on the obstruction and surrounding object information, the terminal device can perform channel reconstruction or channel estimation (such as path loss estimation), determine the channel between the terminal device and the network device, and perform channel measurement to obtain channel quality information. It is understandable that the channel estimated by the terminal device based on the environmental information is rough information, but the measured channel quality information can still assist the network device in resource scheduling.

[0177] In one possible implementation, a terminal device obtains channel quality information based on a trigger condition. For example, the trigger condition may include a data transmission request between the terminal device and a network device. The data transmission request may include an uplink data transmission request and a downlink data transmission request. Both the uplink data and the downlink data are small packets.

[0178] In one scenario, when a terminal device needs to send uplink data, for example, the terminal device needs to send data (such as multimedia data, voice data, etc.) to other terminal devices in response to user operations, the terminal device can obtain channel quality information based on environmental information and send the channel quality information to the network device.

[0179] In another scenario, when a terminal device receives an instruction from a network device indicating that it needs to receive downlink data, for example, the network device or other terminal device or server needs to send downlink data to the terminal device, the terminal device can obtain channel quality information based on the instruction and send the channel quality information to the network device. The instruction can be a paging message or a wake-up signal.

[0180] S803: The terminal device sends channel quality information to the network device. Correspondingly, the network device receives the channel quality information from the terminal device.

[0181] In an embodiment of the present application, the terminal device can feedback channel quality information based on a method similar to the transmission of Msg A in two-step RACH. In two-step RACH, the terminal device is implemented by combining the preamble (Msg1) and the scheduled PUSCH transmission (Msg3) into a single message (MsgA) from the UE, which is called MsgA. In an embodiment of the present application, after the terminal device sends PRACH to the network device, after a preset time, it can send PUSCH to the network device. Among them, PUSCH carries channel quality information (also known as channel auxiliary information MAC CE).

[0182] The PRACH is associated with the PUSCH. For example, as shown in FIG9a , the PRACH and the PUSCH can be combined into the above-mentioned MsgA, and there is a time domain offset / time domain interval between the PRACH and the PUSCH.

[0183] In some examples, the PUSCH may correspond to a dedicated preamble. In this way, the network device and the terminal device can determine the PUSCH associated with the dedicated preamble through the dedicated preamble. For example, the terminal device can send a preamble associated with the PUSCH to the network device. In this way, the network device can determine the PUSCH used to carry channel quality information based on the preamble and obtain and parse the channel quality information on the PUSCH.

[0184] In some scenarios, the channel quality information is MAC CE-type information, and the MAC CE corresponds to a MAC subheader, which carries a logical channel identifier (LCID). The LCID can be used to indicate the type of MAC CE. In an embodiment of the present application, the LCID carried in the MAC CE for indicating channel quality information can be used to indicate that the MAC CE is channel quality information, such as a channel auxiliary information MAC CE.

[0185] In some scenarios, when a terminal device needs to send uplink data, the channel quality information may be sent simultaneously with the uplink data, for example, based on a two-step RACH.

[0186] In some examples, as shown in Figure 9b, a schematic diagram of the structure of channel quality information provided in an embodiment of the present application is provided. For example, the channel quality information may include a cell index, a CQI index, and optionally, beam information. R represents reservation.

[0187] Based on the technical solution of FIG8 , the terminal device can obtain channel quality information based on perception and feed back the channel quality information to the network device to assist the network device in resource scheduling.

[0188] In some embodiments (Example 2), the terminal device feeds back channel quality information via the low power consumption module to assist the network device in resource scheduling. Specifically, as shown in FIG10 , it may include S1001 to S1002.

[0189] S1001. The terminal device obtains channel quality information.

[0190] Among them, S1001 can refer to the above S601 and will not be repeated here.

[0191] S1002: When a first trigger condition is met, the terminal device may send channel quality information to the network device. Correspondingly, the network device receives the channel quality information from the terminal device.

[0192] The first trigger condition may be used to trigger the terminal device to reflect the channel quality information. For example, if the first preset condition is met, the low-power module of the terminal device may be triggered to reflect a feedback signal. The feedback signal may carry the channel quality information.

[0193] In an embodiment of the present application, the low-power module may support low-power technologies. For example, the low-power technologies may include at least one of the following: chirp technology, OOK technology, and A-IoT technology. Of course, other low-power technologies may also be included without limitation. Accordingly, the feedback signal reflected by the low-power module may include at least one of the following: a chirp signal, an OOK signal, and an A-IoT signal.

[0194] In some examples, the first preset condition may include at least one of the following:

[0195] 10-1. There is a need for data transmission between terminal devices and network devices.

[0196] The data transmission requirements may include uplink data transmission requirements and downlink data transmission requirements. It is understood that the uplink data and downlink data may be small data packets. That is, the data volume of the uplink data and downlink data is less than a preset value.

[0197] In some scenarios, when there is a need for data transmission, the terminal device can send a random access. In this way, after establishing a connection with the terminal device, the network device can send a trigger signal (such as an A-IoT signal). After receiving the trigger signal, the terminal device can transmit a feedback signal.

[0198] 10-2. The channel quality between the terminal device and the network device is higher than the preset threshold.

[0199] The channel quality being higher than the preset threshold may refer to a channel quality parameter being higher than the preset threshold. For example, the RSRP and / or CQI of the channel is higher than the preset threshold. The preset threshold can be set as needed and is not limited.

[0200] In some scenarios, the terminal device may monitor the channel quality between the terminal device and the network device, and when the monitored channel quality is higher than a preset threshold, the terminal device may send channel quality information.

[0201] In one example, a terminal device may be configured with multiple groups of resources (such as resources 1 to 4 in Figure 11). A group of resources may include time domain resources and frequency domain resources. The terminal device may perform measurements based on the multiple groups of resources to obtain channel quality information corresponding to each group of resources in the multiple groups of resources. If there is a channel whose channel quality is higher than a preset threshold among the channels corresponding to the multiple groups of resources, the terminal device may send the channel quality information.

[0202] For example, a terminal device may receive a trigger signal from a network device and, in response to the trigger signal, transmit a feedback signal corresponding to the trigger signal on the resource with the best channel quality among multiple resource groups. This feedback signal may be the feedback signal corresponding to the trigger channel. That is, the feedback signal may not include the channel quality. In this way, based on the channel transmitting the feedback information, the network device can determine the channel with the best channel quality among the multiple resource groups.

[0203] For example, referring to FIG11 , among resources 1 to 4, resource 3 has the best channel quality, such as the best RSRP. The terminal device can reflect the feedback signal on resource 3.

[0204] For another example, the terminal device may send channel quality information on any one of the multiple resource groups. Based on the channel quality information, the network device may determine the channel with the best channel quality among the multiple resource groups.

[0205] In another example, one of the multiple resource groups configured by the terminal device includes measurement resources and feedback resources. The measurement resources can be used to measure channel quality, and the feedback resources can be used to provide feedback on channel quality information. Both the measurement resources and the feedback resources can be time domain resources and / or frequency domain resources.

[0206] For example, measurement resources and feedback resources are time domain resources. For each set of resources, the terminal device can use the measurement resources to perform channel measurement and feedback channel quality information on the feedback resources. It is understandable that in the time domain, the measurement resources are located before the feedback resources.

[0207] For another example, the measurement resources and feedback resources are frequency domain resources. For each set of resources, the terminal device can perform channel measurement on the measurement resources and feedback channel quality information on the feedback resources. It is understood that the frequency bands of the measurement resources and feedback resources can be the same or different. Even if the frequency bands of the measurement resources and feedback resources are different, the measurement resources and feedback resources can be associated.

[0208] In another example, the terminal device may perform channel measurement based on a dedicated measurement signal, such as a cell tracking reference signal (TRS), an SSB, or the like.

[0209] The time-frequency resources, measurement period, etc. corresponding to the dedicated measurement signal may be included in the configuration information of the first mode.

[0210] 10-3. The channel quality between the terminal device and the network device has changed.

[0211] A change in channel quality may refer to a change in the channel quality between the terminal device and the network device exceeding a preset range, or a change in the channel quality of a channel among multiple channels between the terminal device and the network device exceeding a preset threshold, or a change in the channel with the best channel quality among multiple channels between the terminal device and the network device (e.g., a change from channel A to channel B). The preset range and preset threshold may be set as needed and are not limited.

[0212] In one scenario, a terminal device can measure the channel quality between the terminal device and a network device. For example, the terminal device can periodically or randomly measure the channel quality between the terminal device and the network device. In this way, if the measured channel quality between the terminal device and the network device changes, the terminal device can feedback the channel quality information.

[0213] 10-4. The terminal device switches from the second mode to the first mode.

[0214] The second mode can refer to the relevant description in the above embodiment and will not be described in detail here.

[0215] In one scenario, the terminal device may switch from the second mode to the first mode in response to a mode switching instruction. For example, the network device may send a mode switching instruction to the terminal device, so that the terminal device switches from the second mode to the first mode after receiving the mode switching instruction.

[0216] 10-5. Feedback time of arrival channel quality information.

[0217] The feedback time may refer to the end time of a measurement cycle. That is, the terminal device may periodically feedback the measured channel quality information. The length of the measurement cycle may be set as needed and is not limited.

[0218] In one scenario, a terminal device periodically feeds back channel quality information. During a measurement period, the terminal device can measure the channel quality between the terminal device and the network device, and feed back the measured channel quality at the end of the measurement period.

[0219] For example, the measurement period is t1-t2, the terminal device may start measuring the channel quality between the terminal device and the network device at t1, and send channel quality information to the network device at t2. The channel quality information may include the channel quality measured by the terminal device during t1-t2.

[0220] In one possible implementation, a terminal device may be pre-configured with a timer. This allows the terminal device to determine whether the channel quality information feedback time has arrived based on the timer, and to provide feedback on the channel quality information when the timer arrives. For example, after the previous feedback cycle ends, the terminal device may control the timer to restart and perform channel measurement, and when the timer reaches the feedback time, provide feedback on the measured channel quality information.

[0221] In one example, the feedback cycle can be pre-configured by the terminal device or configured by the network device for the terminal. For example, the network device can configure the feedback cycle for the terminal device through signaling. For example, the signaling can include the duration of the feedback cycle.

[0222] In another example, a terminal device may periodically provide feedback of channel quality information based on an activation signal. For example, a network device may send an activation instruction to the terminal device, instructing the terminal device to periodically provide feedback of channel quality information. For example, the activation instruction may include the duration of the feedback cycle. Thus, based on the activation instruction, the terminal device may periodically provide feedback of channel quality information.

[0223] Based on the technical solution of FIG. 10 , after acquiring the channel quality information, the terminal device can feed back the channel quality information based on the triggering condition. In this way, the terminal device can flexibly report the channel quality information.

[0224] In some embodiments (Embodiment 3), the terminal device may obtain channel quality information based on the CSI-RS and feed back the channel quality information. Specifically, as shown in FIG12 , the process includes S1201 to S1204 .

[0225] S1201: The network device sends a trigger signal to the terminal device. Correspondingly, the terminal device receives the trigger signal from the network device.

[0226] The trigger signal is used to trigger the terminal device to feed back channel quality information. For example, the trigger signal may include any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal.

[0227] In one scenario, when a network device needs to send data to a terminal device, the network device may send a trigger signal to the terminal device.

[0228] S1202: After a preset time period, the network device sends a CSI-RS to the terminal device. Correspondingly, after the preset time period, the terminal device receives the CSI-RS.

[0229] The CSI-RS signal may include a semi-static CSI-RS signal or an aperiodic CSI-RS signal. The preset duration may be set as needed and is not limited.

[0230] S1203. The terminal device obtains channel quality information based on the CSI-RS.

[0231] In one example, taking CSI-RS including semi-static CSI-RS as an example, after the terminal device receives a trigger signal (such as a paging signal), after a preset period of time, the terminal device can receive CSI-RS and perform measurement at the first CSI-RS position to obtain channel quality information.

[0232] In another example, taking CSI-RS including semi-static CSI-RS as an example, the terminal device completes initial access, receives the conflict resolution MAC CE or MSG B, and after a preset time, receives the CSI-RS and performs measurement at the first CSI-RS position to obtain channel quality information.

[0233] S1204: The terminal device sends channel quality information to the network device. Correspondingly, the network device receives the channel quality information.

[0234] Here, S1204 may refer to the description of S602 above.

[0235] Furthermore, in an embodiment of the present application, after the second preset condition is met, the channel measurement is stopped or the CSI-RS resources are released.

[0236] The second preset condition may include at least one of the following:

[0237] 12-1. Receive mode switching command.

[0238] The mode switching instruction may be used to instruct switching from the first mode to the second mode.

[0239] In one scenario, when a large amount of data needs to be transmitted between a terminal device and a network device, the network device may send a mode switching instruction to the terminal device, instructing the terminal device to switch from a first mode to a second mode. In response to the mode switching instruction, the terminal device may stop channel measurement in the first mode and switch from the first mode to the second mode.

[0240] 12-2. Receive a context release instruction.

[0241] The context release indication may be used to instruct the terminal device to release its stored terminal context information, where the terminal context information includes: air interface configuration, security-related algorithms, keys, compression algorithms, and the like.

[0242] In one scenario, when the network device cannot retain all UE context information due to memory limitations, the network side will release the terminal context information. In this way, the terminal device can stop channel measurement after receiving the context release instruction.

[0243] 12-3. Timer times out.

[0244] The timer expiration may refer to a timeout for measuring channel quality, and the timer may be pre-configured by the terminal device.

[0245] In one scenario, the terminal device may control a timer to start timing after receiving a trigger signal, and stop channel measurement when the timer times out.

[0246] Based on the technical solution of Figure 12, in an embodiment of the present application, for a terminal device in a low power consumption mode, the terminal device can accurately perform channel measurement based on the CSI-RS sent by the network device.

[0247] In some other embodiments (Example 4), in order to accurately determine the mode supported by the terminal device, as shown in FIG13a, the method provided in the embodiment of the present application may further include:

[0248] S1301: A terminal device sends capability information of the terminal device to a network device. Correspondingly, the network device receives the capability information from the terminal device.

[0249] Among them, the capability information of the terminal device can be used to indicate the modes supported by the terminal device. For example, as shown in Figure 13b, the capability information of the terminal device may include a common capability and dedicated capabilities of multiple modes. The dedicated capabilities of multiple modes may include at least a dedicated capability of the first mode and a dedicated capability of the second mode. The common capability may be applicable to the first mode and the second mode or a capability shared by the first mode and the second mode. The capability information of the first mode may refer to the capability information of the terminal device in the first mode. The capability information of the second mode may refer to the capability information of the terminal device in the second mode. The capability of the terminal device in the first mode is lower than the capability in the second mode.

[0250] In one example, the dedicated capabilities of the terminal device in multiple modes may include one or more of the number of transmitting and receiving antennas, the maximum supported bandwidth, the time domain monitoring period (such as PUCCH monitoring), the duplex mode, the CQI table, the MCS table, the support of high-order modulation, the maximum transmit power, whether low-power technology is supported, the radio resource management (RRM) measurement, the inactive carrier aggregation capability, the cross-slot scheduling, the paging early indication (PEI), etc.

[0251] In combination with the above examples, the capability of the terminal device in the first mode is lower than the capability in the second mode, which may include that the number of transceiver antennas used by the terminal device in the first mode is smaller than the number of transceiver antennas used in the second mode, the maximum bandwidth supported by the terminal device in the first mode is smaller than the maximum bandwidth supported in the second mode, the highest modulation order supported by the terminal device in the first mode is lower than the highest modulation order supported in the second mode, etc.

[0252] In one scenario, for a single RRC state, after a terminal device initially accesses a network device, the network device may send a request message (e.g., a UE capability enquiry) to the terminal device to request the terminal device's capability information. After receiving the request message from the network device, the terminal device may report the terminal device's capability information. For example, the capability information may be UE capability information.

[0253] In another scenario, the terminal device may actively send the capability information of the terminal device to the network device. For example, after the terminal device initially accesses the network device, it may send the capability information of the terminal device to the network device.

[0254] S1302: The network device configures configuration information matching the capability information for the terminal device based on the capability information of the terminal device.

[0255] The configuration information may include configuration parameters required for the modes supported by the terminal device, such as antenna data, modulation order, maximum bandwidth, etc. used in different modes.

[0256] Furthermore, when subsequently performing data transmission, the network device can determine whether the terminal device supports the first mode and the second mode based on the terminal device's capability information. In this way, the network device can activate the corresponding capabilities based on the modes supported by the terminal device. For example, if the terminal device's capability information indicates that the terminal device supports the first mode, when the network device and the terminal device need to perform data transmission of a small amount of data, the network device can send a mode switching instruction to the terminal device to instruct it to switch from the second mode to the first mode. In this way, the power consumption of the terminal device when sending and receiving data can be reduced.

[0257] Based on the technical solution of FIG13a , the terminal device can report the capability information of the terminal device. In this way, the network device can accurately determine whether the terminal device supports data transmission in the low power consumption mode based on the capability information of the terminal device.

[0258] The various solutions in the above embodiments of the present application can be combined under the premise that there is no contradiction.

[0259] Among them, the actions of the terminal devices in the above S601, S602, S801, S802, S803, S1001, S1002, S1203, and S1204 can be performed by the processor 501 in the communication device 500 shown in Figure 5 calling the application code stored in the memory 504 to instruct the communication device 500 to execute, and the actions of the network devices in the above S1201 to S1202 can be performed by the processor 501 in the communication device 500 shown in Figure 5 calling the application code stored in the memory 504 to instruct the communication device 500 to execute, and the embodiments of the present application do not impose any restrictions on this.

[0260] The above description primarily describes the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Accordingly, the embodiments of the present application also provide a communication device for implementing the various methods described above. The communication device can be a terminal device in the above method embodiments, or a component usable in a terminal device; alternatively, the communication device can be a network device in the above method embodiments, or a component usable in a network device. It will be understood that, to implement the aforementioned functions, the communication device includes hardware structures and / or software modules corresponding to each function. Those skilled in the art will readily appreciate that, in conjunction with the various exemplary units and algorithm steps described in the embodiments disclosed herein, the present application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0261] In the embodiment of the present application, the communication device can be divided into functional modules according to the above method embodiment. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be understood that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods.

[0262] For example, taking the communication device as a terminal device in the above method embodiment, FIG14 shows a schematic structural diagram of a terminal device 1400. The terminal device 1400 includes a transceiver module 1401 and a processing module 1402. The transceiver module 1401, which may also be referred to as a transceiver unit, is used to implement transceiver functions and may be, for example, a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0263] The transceiver module 1401 is used to obtain the channel quality information between the terminal device and the network device and is also used to send the channel quality information to the network device.

[0264] Among them, the transceiver module 1401 can be used to implement the transceiver function corresponding to the terminal device in the above method embodiment, and the processing module 1402 can be used to implement the processing function corresponding to the terminal device in the above method embodiment. Furthermore, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here.

[0265] In the embodiment of the present application, the terminal device 1400 is presented in the form of various functional modules divided in an integrated manner. Here, "module" can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art will appreciate that the terminal device 1400 can take the form of the communication device 500 shown in Figure 5.

[0266] For example, the processor 501 in the communication device 500 shown in FIG5 can call the computer-executable instructions stored in the memory 504 to enable the communication device 500 to execute the communication method in the above method embodiment.

[0267] Specifically, the functions / implementation processes of the transceiver module 1401 and the processing module 1402 in FIG14 can be implemented by the processor 501 in the communication device 500 shown in FIG5 calling computer-executable instructions stored in the memory 504. Alternatively, the functions / implementation processes of the processing module 1402 in FIG14 can be implemented by the processor 501 in the communication device 500 shown in FIG5 calling computer-executable instructions stored in the memory 504, and the functions / implementation processes of the transceiver module 1401 in FIG14 can be implemented by the communication interface 502 in the communication device 500 shown in FIG5.

[0268] Since the terminal device 1400 provided in the embodiment of the present application can execute the above-mentioned communication method, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be repeated here.

[0269] Alternatively, for example, taking the communication device as the network device in the above method embodiment, FIG15 shows a schematic structural diagram of a network device 1500. The network device 1500 includes a transceiver module 1501 and a processing module 1502. The transceiver module 1501, also referred to as a transceiver unit, is used to implement transceiver functions and can be, for example, a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0270] The transceiver module 1501 is configured to receive channel quality information from a terminal device, and the processing module 1502 is configured to configure resources for the terminal device based on the channel quality information.

[0271] Among them, the transceiver module 1501 can be used to implement the corresponding transceiver function of the network device in the above method embodiment, and the processing module 1502 can be used to implement the corresponding processing function of the network device in the above method embodiment. Furthermore, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here.

[0272] In the embodiment of the present application, the network device 1500 is presented in the form of various functional modules divided in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can imagine that the network device 1500 can take the form of the communication device 500 shown in Figure 5.

[0273] For example, the processor 501 in the communication device 500 shown in FIG5 can call the computer-executable instructions stored in the memory 504 to enable the communication device 500 to execute the communication method in the above method embodiment.

[0274] Specifically, the functions / implementation processes of the transceiver module 1501 and the processing module 1502 in FIG15 can be implemented by the processor 501 in the communication device 500 shown in FIG5 calling computer-executable instructions stored in the memory 504. Alternatively, the functions / implementation processes of the processing module 1502 in FIG15 can be implemented by the processor 501 in the communication device 500 shown in FIG5 calling computer-executable instructions stored in the memory 504, and the functions / implementation processes of the transceiver module 1501 in FIG15 can be implemented by the communication interface 302 in the communication device 500 shown in FIG5.

[0275] Since the network device 1500 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be repeated here.

[0276] It should be understood that one or more of the above modules or units can be implemented by software, hardware, or a combination of the two. When any of the above modules or units is implemented in software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow. The processor can be built into an SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core used to execute software instructions to perform calculations or processing within the processor, it can further include necessary hardware accelerators, such as field programmable gate arrays (FPGAs), PLDs, or logic circuits that implement dedicated logic operations.

[0277] When the above modules or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0278] Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the method in any of the above method embodiments. In one possible design, the communication device also includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the above method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or it may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

[0279] In one possible implementation, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction is run on a communication device, the communication device can execute the method described in any of the above method embodiments or any of its implementations.

[0280] In a possible implementation, an embodiment of the present application further provides a communication system, which includes the terminal device described in the above method embodiment and the network device described in the above method embodiment.

[0281] In a possible implementation, an embodiment of the present application further provides a communication method, which includes the method described in any of the above method embodiments or any of its implementations.

[0282] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments can 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, all or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more media integrated therein. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state drives (SSDs)).

[0283] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0284] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

Claims

1. A communication method, characterized in that: Applied to a terminal device, the terminal is configured in a first mode among multiple modes, the multiple modes include at least a first mode and a second mode, and the power consumption of the terminal device in the first mode is less than the power consumption in the second mode; the method includes: Acquiring channel quality information between the terminal device and the network device; The channel quality information is sent to the network device.

2. The method according to claim 1, characterized in that: The power consumption of the terminal device in the first mode is less than the power consumption in the second mode, including at least one of the following: The number of days that the terminal device uses antennas in the first mode is less than the number of days that the terminal device uses antennas in the second mode; The bandwidth configured by the terminal device in the first mode is smaller than the bandwidth configured in the second mode; The signal opportunity monitored by the terminal device in the first mode is less than the channel opportunity monitored in the second mode; The functions supported by the terminal device in the first mode are less than the functions supported in the second mode; The maximum transmission data volume of the terminal device in the first mode is less than a preset threshold, and the minimum transmission data volume in the second mode is greater than the preset threshold.

3. The method according to claim 1 or 2, characterized in that: Also includes: Obtain environmental information of the location of the terminal device.

4. The method according to claim 3, characterized in that The method for obtaining the environmental information includes at least one of the following: Switch signaling; Information system block SIB broadcast signal; Request information for obtaining the environment information.

5. The method according to claim 3 or 4, characterized in that: The obtaining of channel quality information between the terminal device and the network device includes: Based on the environment information, the channel quality information is acquired.

6. The method according to any one of claims 1 to 5, characterized in that The sending the channel quality information to the network device includes: After sending the physical random access channel PRACH, a physical uplink shared channel PUSCH is sent at a preset time interval; the PUSCH carries the channel quality information.

7. The method according to claim 6, characterized in that The PUSCH is associated with the PRACH.

8. The method according to any one of claims 1 to 7, characterized in that The channel quality information includes channel information of one or more cells accessed by the terminal device and / or accessed beam information.

9. The method according to claim 1, characterized in that: The terminal device is configured with a first module and a second module, and the power consumption of the terminal device when using the first module is less than the power consumption when using the second module; The channel quality information between the terminal device and the network device includes: Acquiring the channel quality information through the first module; The sending the channel quality information to the network device includes: The channel quality information is sent to the network device through the first module.

10. The method according to claim 9, characterized in that The first module is a module that supports low-power consumption technology, and the low-power consumption technology includes at least one of the following: Chirp technology, on-off key OOK technology, and ambient Internet of Things A-IOT technology.

11. The method according to claim 10, characterized in that The channel quality information is carried on a feedback signal, and the feedback signal includes at least one of the following: a Chirp signal, an OOK signal, and an A-IOT signal.

12. The method according to any one of claims 1 to 11, characterized in that The sending the channel quality information to the network device includes: When a first trigger condition is met, the channel quality information is sent to the network device.

13. The method according to claim 12, characterized in that The first trigger condition includes at least one of the following: There is a need for data transmission between the terminal device and the network device; The channel quality between the terminal device and the network device is higher than a preset threshold; There is a change in the channel quality between the terminal device and the network device; The terminal device switches from the second mode to the first mode; Feedback time of arrival channel quality information.

14. The method according to any one of claims 1 to 13, characterized in that The sending the channel quality information to the network device includes: Acquire time-frequency resources for sending the channel quality information; Based on the time-frequency resources, a reflected signal is transmitted to the network device; the reflected signal carries the channel quality information.

15. The method according to any one of claims 1 to 13, characterized in that The terminal device is configured with multiple groups of transmission resources, and the sending of the channel information to the network device includes: receiving a trigger signal from the network device; In response to the trigger signal, a feedback signal corresponding to the trigger signal is reflected on a transmission resource with the best quality among the multiple groups of transmission resources.

16. The method according to any one of claims 1 to 14, characterized in that The obtaining of channel quality information between the terminal device and the network device includes: After receiving the trigger signal, the channel state information reference signal CSI-RS is received after a preset time period, and the channel quality information is obtained based on the CSI-RS; the trigger signal includes any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal.

17. The method according to any one of claims 1 to 16, characterized in that The method further comprises: After a second trigger condition is met, the channel measurement is stopped; wherein the second trigger condition includes at least one of the following: receiving a mode switching instruction, wherein the mode switching instruction is used to instruct switching from the first mode to the second mode; receiving a context release indication; The timer has expired.

18. A communication method, characterized in that: Applied to a network device, the method comprises: Receiving channel quality information between the terminal device and the network device reported by the terminal device; Based on the channel quality information, resources are configured for the terminal device.

19. The method according to claim 18, characterized in that Also includes: A plurality of modes are configured for the terminal device, wherein the plurality of modes include at least a first mode and a second mode, and the power consumption of the terminal device in the first mode is less than that in the second mode; and the channel quality information is fed back by the terminal device in the first mode.

20. The method according to claim 19, characterized in that Also includes: Sending environmental information to the terminal device.

21. The method according to any one of claims 18 to 20, characterized in that: The receiving channel quality information between the terminal device and the network device reported by the terminal device includes: After receiving the PRACH sent from the terminal device, a PUSCH sent from the terminal device is received at a preset time interval; the PUSCH carries the channel quality information.

22. The method according to any one of claims 18 to 21, characterized in that: The channel quality information is carried in a feedback signal reflected by the terminal device, and the feedback signal includes at least one of the following: a Chirp signal, an OOK signal, and an A-IOT signal.

23. The method according to any one of claims 18 to 22, characterized in that Also includes: Sending time-frequency resources to the terminal device, where the time-frequency resources are used to receive the channel quality information.

24. The method according to any one of claims 18 to 23, characterized in that Also includes: A plurality of groups of transmission resources are configured for the terminal device.

25. The method according to claim 24, characterized in that Also includes: Sending a trigger signal to the terminal device; A feedback signal corresponding to the trigger signal is received on a first transmission resource; the first transmission resource is a transmission resource with the best quality among the multiple groups of transmission resources.

26. The method according to any one of claims 18 to 25, characterized in that Also includes: Sending a trigger signal to the terminal device; the trigger signal includes any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal; After a preset time period, a CSI-RS signal is sent to the terminal device.

27. A communication device, characterized in that: The method comprises a module for executing the method according to any one of claims 1 to 17, or a module for executing the method according to any one of claims 18 to 26.

28. A communication device, characterized in that: The communication device includes one or more processors and one or more memories; the one or more memories are coupled to the one or more processors, and the one or more memories are used to store computer program codes or computer instructions; When one or more processors execute the computer instructions, the communication device executes the method according to any one of claims 1 to 17, or executes the method according to any one of claims 18 to 26.

29. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions or programs. When the computer instructions or programs are executed on a computer, the computer executes the method according to any one of claims 1 to 17 or any one of claims 18 to 26.

30. A communication system, characterized in that: It comprises a terminal device and a network device, wherein the terminal device is used to execute the method as described in any one of claims 1 to 17, and the network device is used to execute the method as described in any one of claims 18 to 26.

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