Communication method and communication device

Abstract

The embodiment of the invention discloses a communication method and a communication device, relates to the technical field of communication, and is used for reasonably configuring resources for terminal equipment in a low-power-consumption mode. Wherein the terminal equipment is configured to be a first mode in multiple modes, the multiple modes at least comprise the first mode and a second mode, and the power consumption of the terminal equipment in the first mode is smaller than the power consumption of the terminal equipment in the second mode. The method comprises the following steps: a terminal device obtains signal quality information between the terminal device and a network device, and sends the channel quality information to the terminal device.

Description

Technical Field

[0001] This application relates to the field of communications, and in particular, to a communication method and a communication device. Background Art

[0002] With the development of communication technologies, the capabilities of terminal devices are getting higher and higher. Correspondingly, the number of hardware components of terminal devices has also increased. Due to the increase in the hardware of terminal devices, the power consumption of terminal devices increases during operation, which to a certain extent reduces the user experience.

[0003] To reduce the power consumption of terminal devices, zero-power technologies (which can also be referred to as near-zero-power technologies) have been introduced. Based on zero-power technologies, terminal devices can use fewer resources (such as antennas, links, etc.) for data transmission. However, how to reasonably schedule resources for terminal devices using zero-power technologies has not been solved yet. Summary of the Invention

[0004] Embodiments of this application provide a communication method and a communication device to meet the transmission requirements in high-throughput scenarios.

[0005] In a first aspect, a communication method is provided. The method includes: a terminal device obtains channel quality information between the terminal device and a network device, and sends the channel quality information to the network device. The terminal device is configured in a first mode among multiple modes, and the multiple modes at least include a first mode and a second mode. The power consumption of the terminal device in the first mode is less than that in the second mode.

[0006] Based on this technical solution, when the terminal device is configured in the first mode among multiple modes, the terminal device can obtain the 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. Since the power consumption of the terminal device in the first mode is less than that in the second mode, based on this channel quality information, the network device can reasonably allocate resources for the terminal device in the low-power mode.

[0007] In some examples, the power consumption of the terminal device in the first mode being less than that in the second mode includes at least one of the following: the number of antennas used by the terminal device in the first mode is less than that in the second mode; the bandwidth configured by the terminal device in the first mode is less than that in the second mode; the signal opportunities monitored by the terminal device in the first mode are fewer than the channel opportunities monitored in the second mode; the functions supported by the terminal device in the first mode are fewer than those 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.

[0008] In a possible implementation, the terminal device can also obtain the environmental information of its location. In this way, the terminal device can obtain the channel quality information based on this environmental information.

[0009] In an example, the ways for the terminal device to obtain the environmental information can at least include: a handover instruction for indicating cell handover, a system information block (SIB) broadcast signal, and a request information for obtaining the environmental information.

[0010] In a possible implementation, the terminal device can send a physical uplink shared channel (PUSCH) to the network device after a preset duration after sending a physical random access channel (PRACH). Among them, the PUSCH carries the channel quality information.

[0011] Among them, the PRACH is associated with the PUSCH.

[0012] In an example, the channel quality information can include the channel information of one or more cells accessed by the terminal device and / or the beam information accessed.

[0013] 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 that when using the second module.

[0014] Based on this method, the terminal device can use the first module to obtain the channel quality information and send the channel quality information to the network device through this first module.

[0015] Among them, the first module is a module that supports low-power technology. The low-power module technology can include at least one of the following: chirp technology, on-off keying (OOK) technology, ambient internet of things (A-IoT) technology.

[0016] 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 trigger condition, avoiding signaling waste.

[0017] In some examples, the first triggering condition may include at least one of the following: there is a data transmission requirement 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, the channel quality between the terminal device and the network device changes, the terminal device switches from the second mode to the first mode, and the feedback time of the channel quality information is reached.

[0018] In a possible implementation, the terminal device may obtain time-frequency resources for transmitting channel quality information, and based on the time-frequency resources, transmit a reflection signal to the network device. The reflection signal carries channel quality information.

[0019] Based on this implementation, the terminal device may send channel quality information on the obtained time-frequency resources for transmitting channel quality information. In this way, the network device may also determine the resources for receiving channel quality information based on the time-frequency resources, ensuring information synchronization between the terminal device and the network device.

[0020] In a possible implementation, the terminal device may be configured with multiple sets of transmission resources. The terminal device may, in response to a trigger signal from the network device, reflect a feedback signal corresponding to the trigger signal on the transmission resource with the best quality among the multiple sets of transmission resources. In this way, the network device may determine the final channel quality between the terminal device and the network device based on the transmission resource carrying the feedback information.

[0021] In a possible implementation, after receiving the trigger signal, the terminal device receives a channel-state information reference signal (CSI-RS) after a preset duration, and based on the CSI-RS, obtains channel quality information. The trigger signal includes any one of a paging signal, a contention resolution MAC CE signal, and a MSG B signal.

[0022] Based on this method, the terminal device may feedback channel quality information in a manner similar to two-step random access, which can reduce signaling overhead.

[0023] In a possible implementation, when the second triggering condition is met, the terminal device stops channel measurement.

[0024] In one example, the second triggering condition may include at least one of the following: receiving a mode switch instruction for indicating switching from the first mode to the second mode, receiving a context release indication, and timer timeout.

[0025] In a possible implementation, the terminal device may also send the capability information of the terminal device to the network device. The capability information is used to indicate the modes supported by the terminal device.

[0026] In one example, the capability information of the terminal device may include common capabilities and dedicated capabilities of multiple modes. The dedicated capabilities of the multiple modes may at least include dedicated capabilities of a first mode and dedicated capabilities of a second mode.

[0027] In a second aspect, a communication method is provided. The method includes: a network device receiving channel quality information reported by a terminal device, and configuring resources for the terminal device based on the channel quality information. The terminal device is configured as the first mode among multiple modes, and the multiple modes at least include a first mode and a second mode. The power consumption of the terminal device in the first mode is less than that in the second mode.

[0028] Based on this technical solution, after receiving the channel quality information reported by the terminal device in the low-power mode, the network device can reasonably configure resources for the terminal device based on the channel quality information.

[0029] In a possible implementation, the network device may configure the above multiple modes for the terminal device. The above channel quality information is fed back by the terminal device in the first mode to the network device.

[0030] In a possible implementation, the network device may send environmental information to the terminal device.

[0031] In this way, the terminal device may perform channel estimation or channel reconstruction based on the environmental information, so as to obtain channel quality information.

[0032] In a possible implementation, after receiving a PRACH from the terminal device, the network device receives a PUSCH sent by the terminal device and carrying channel quality information after a preset time interval.

[0033] In one example, the channel quality information may also be carried in a feedback signal reflected by the terminal device. The feedback signal at least includes at least one of: a chirp signal, an OOK signal, and an A-IoT signal.

[0034] In a possible implementation, the network device may also send time-frequency resources to the terminal device. The time-frequency resources may be used to receive channel quality information. In this way, based on the time-frequency resources, the network device can accurately receive the channel quality information.

[0035] In a possible implementation, the network device may configure multiple transmission resources for the terminal device.

[0036] In combination with this implementation, the network device may also 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 the transmission resource with the best quality among multiple groups of transmission resources.

[0037] In a possible implementation, the network device may further send a trigger signal to the terminal device, and after a preset duration, send CSI-RS to the terminal device.

[0038] Wherein, the trigger signal may include any one of a paging signal, a conflict resolution MAC CE, and a MSG B signal.

[0039] In a third aspect, a communication device is provided for implementing the above various methods. The communication device may be the terminal device in the first aspect or any of its implementation manners, or a device having the functions of the above terminal device, or a device included in the above terminal device, such as a chip. The communication device includes corresponding modules, units, or means for implementing the above methods, and the modules, units, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

[0040] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, which may also be referred to as a transceiver unit, is used to implement the sending and / or receiving functions in any of the above aspects and any of their possible implementation manners. The transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be used to implement the processing functions in any of the above aspects and any of their possible implementation manners.

[0041] 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 of their possible implementation manners.

[0042] In a fourth aspect, a communication device is provided for implementing the above various methods. The communication device may be the network device in the first aspect or any of its implementation manners, or a device having the functions of the above network device, or a device included in the above network device, such as a chip. The communication device includes corresponding modules, units, or means for implementing the above methods, and the modules, units, or means may be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

[0043] In some possible designs, the communication device may include a processing module and a transceiver module. The transceiver module, which may also be referred to as a transceiver unit, is used to implement the sending and / or receiving functions in any of the above aspects and any of their possible implementation manners. The transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver, or a communication interface. The processing module may be used to implement the processing functions in any of the above aspects and any of their possible implementation manners.

[0044] In some possible designs, the transceiver module includes a transmitting module and a receiving module, which are respectively used to implement the transmitting and receiving functions in any of the above aspects and any possible implementation manners thereof.

[0045] In a fifth aspect, a communication device is provided, including: at least one processor; the processor is used to execute computer programs or instructions stored in a memory through a logic circuit and / or communication, so that the communication device executes the method described in any of the above aspects.

[0046] In a possible implementation, the communication device further includes the memory. Optionally, the memory is integrated with the processor, or the memory can be independent of the processor.

[0047] In a possible implementation, the memory is independent of the communication device.

[0048] In a possible implementation, the communication device further includes a communication interface, which is used to communicate with modules outside the communication device.

[0049] The communication device may be a terminal device in the first aspect or any of its implementation manners above, or a device included in the above terminal device, such as a chip.

[0050] In a sixth aspect, a communication device is provided, including: at least one processor; the processor is used to execute computer programs or instructions stored in a memory through a logic circuit and / or communication, so that the communication device executes the method described in any of the above aspects.

[0051] In a possible implementation, the communication device further includes the memory. Optionally, the memory is integrated with the processor, or the memory can be independent of the processor.

[0052] In a possible implementation, the memory is independent of the communication device.

[0053] In a possible implementation, the communication device further includes a communication interface, which is used to communicate with modules outside the communication device.

[0054] The communication device may be a terminal device in the second aspect or any of its implementation manners above, or a device included in the above terminal device, such as a chip.

[0055] In a seventh aspect, a computer-readable storage medium is provided, in which computer programs or instructions are stored. When it runs on a communication device, the communication device can execute the method described in any of the above aspects or any of its implementation manners.

[0056] In an eighth aspect, there is provided a computer program product including instructions, which, when running on a communication device, enables the communication device to execute the method described in any of the above aspects or any of its implementations.

[0057] In a ninth aspect, there is provided a communication device (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 implementations.

[0058] In some possible designs, the communication device includes a memory for storing necessary program instructions and data.

[0059] In some possible designs, when the device is a chip system, it may be composed of chips or may include chips and other discrete devices.

[0060] It can be understood that when the communication device provided in any of the third aspect to the ninth aspect 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.

[0061] Among them, for the technical effects brought by any of the designs in the second aspect to the ninth aspect, reference may be made to the technical effects brought by different designs in the first aspect above, which will not be elaborated here.

[0062] In a tenth aspect, there is provided a communication system, which includes a terminal device and a network device. The terminal device can execute the method described in the first aspect or any of its implementations above, and the network device can execute the method described in the second aspect or any of its implementations above. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a schematic diagram of a data transmission process provided by an embodiment of the present application;

[0064] Figure 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0065] Figure 3 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application;

[0066] Figure 4 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application;

[0067] Figure 5 is a schematic diagram of the structure of a communication device provided by an embodiment of the present application;

[0068] Figure 6 is a schematic diagram of the flowchart of a communication method provided by an embodiment of the present application;

[0069] Figure 7 It is a schematic structural diagram of channel quality information provided by an embodiment of the present application;

[0070] Figure 8 It is a schematic flowchart of another communication method provided by an embodiment of the present application;

[0071] Figure 9a It is a schematic diagram of sending channel quality information provided by an embodiment of the present application;

[0072] Figure 9b It is a schematic structural diagram of another channel quality information provided by an embodiment of the present application;

[0073] Figure 10 It is a schematic flowchart of another communication method provided by an embodiment of the present application;

[0074] Figure 11 It is a schematic diagram of multiple groups of resources configured by a terminal device provided by an embodiment of the present application;

[0075] Figure 12 It is a schematic flowchart of another communication method provided by an embodiment of the present application;

[0076] Figure 13a It is a schematic flowchart of another communication method provided by an embodiment of the present application;

[0077] Figure 13b It is an example diagram of the capability information of a terminal device provided by an embodiment of the present application;

[0078] Figure 14 It is a schematic structural diagram of a terminal device 1400 provided by an embodiment of the present application;

[0079] Figure 15 It is a schematic structural diagram of a network device 1500 provided by an embodiment of the present application. Detailed implementation manners

[0080] To facilitate the understanding of the embodiments of the present application, the following points are explained before introducing the embodiments of the present application.

[0081] 1. In the embodiments of the present application, a "network element" and a "node" can be a logical entity or a physical entity. In other words, in the embodiments of the present application, "device" can be used interchangeably with "network element", which is explained here uniformly and will not be repeated hereinafter.

[0082] 2. In the embodiments of the present application, for the convenience of description, when referring to numbers or indexes, continuous numbering can start from 1, or start from 0, or start numbering from any parameter.

[0083] 3. "Pre - definition", "pre - configuration", or "protocol agreement" can be implemented by pre - storing corresponding codes, tables, or other means that can be used to indicate relevant information in a device (e.g., a network device, a terminal device). The embodiments of the present application do not limit the specific implementation methods thereof. Herein, "storage" may refer to storage in one or more memories.

[0084] 4. The "protocol" involved in the embodiments of the present application may refer to standard protocols in the communication field. For example, it may include the long - term evolution (LTE) protocol, the new radio (NR) protocol, and relevant protocols applied to future communication systems (e.g., the 6th generation (6G) communication system). The embodiments of the present application do not limit this.

[0085] 5. In the embodiments of the present application, descriptions such as "when...", "in the case of...", "if", and "when" all refer to the situation where the device will perform corresponding processing under certain objective circumstances, rather than limiting time. It does not require the device to have a judgment action during implementation, nor does it imply other limitations.

[0086] 6. In the embodiments of the present application, "sending information to... (network device)" can be understood as the destination of the information being the network device, which may include directly or indirectly sending information to the network device. "Receiving information from... (terminal device)" or "receiving information sent from... (terminal device)" can be understood as the source of the information being the terminal device, which may include directly or indirectly receiving information from the terminal device. Necessary processing may be performed on the information between the source and the destination of the information transmission, such as format change, etc. However, the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly and will not be elaborated here.

[0087] 7. In the description of the embodiments of the present application, unless otherwise specified, "and / or" in the embodiments of the present application represents three relationships that may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural. Also, "at least one (item)" or its similar expressions refer to any combination of these items, including any combination of single items or plural items. Additionally, for the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and "first", "second", etc. do not necessarily mean 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 explanations.

[0088] With the continuous development of communication technologies, the requirements for the capabilities of terminal devices are also getting higher and higher. For example, the improvement of network capabilities (such as 5G networks) requires higher rates for terminal devices. For another example, for 5G networks, terminal devices need to support two modes: NAS networking and SA networking. For another example, terminal devices need to support more frequency bands, larger bandwidths, higher transmission powers, etc.

[0089] To improve the capabilities of terminal devices, the hardware configured in terminal devices will increase accordingly, and correspondingly, the power consumption of terminal devices will also increase.

[0090] In some designs, to meet the high-power consumption requirements of terminal devices, on the terminal side, terminal devices can adopt technical means such as larger-capacity batteries, low-power high-performance components, or displays with power-saving technologies to extend the battery life of terminal devices. On the network side, while ensuring the effective data transmission of terminal devices, through various energy-saving communication technologies, unnecessary power consumption of terminal devices can be reduced to achieve the purpose of power saving and energy conservation for terminal devices. 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 carrier numbers, bandwidth part (BWP) adaptation, paging early indication, search space adaptive adjustment, etc.

[0091] Through the above energy-saving communication technologies, the terminal device can have more sleep time or operate with fewer components, achieving the goal of reducing the energy consumption of the terminal device.

[0092] Each version of the 3GPP protocol has introduced new terminal energy-saving technologies. However, due to the benefits of terminal energy saving, 3GPP is still further exploring new terminal energy-saving technologies for the fifth-generation (5G) 5G system / NR system or future 6G systems.

[0093] For example, with the development of the Internet of Things (IoT) technology, the IoT technology has received extensive attention in the field of wireless communication. The 3GPP protocol has also introduced relevant 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 (RedCap) terminals.

[0094] Since most current wireless devices are powered by batteries, it leads to high maintenance costs of wireless devices, brings serious environmental problems, and even poses potential safety hazards in some usage scenarios. At the same time, in order to further reduce the size, complexity, and power consumption of IoT devices, the ambient IoT (A-IoT) technology has been introduced.

[0095] The A-IoT technology can be referred to as zero power device, near-zero power, passive, ambient backscatter communication (AmBC), communication based on passive reflection, etc. The A-IoT technology can support battery-free or devices with limited energy storage capabilities. Terminals supporting the A-IoT technology can harvest energy through radio waves, light, motion, heat, or other suitable power sources. Therefore, compared with existing low-power wide-coverage services (such as narrowband Internet of Things (NB IoT), eMTC), the A-IoT technology has lower complexity and lower power consumption, enabling more application scenarios. For example, it can be applied to ambient backscatter systems.

[0096] Under normal circumstances, an ambient backscatter system can include three parts: an ambient radio frequency source, a backscatter device, and a reader / writer. In an ambient backscatter communication system, the backscatter device can obtain energy from the ambient radio frequency source and use the wireless signals it broadcasts to communicate with each other. The zero-power device can receive the carrier signal sent by the reader / writer, collect energy through the RF energy harvesting module, and be used for the functions of the low-power processing module. After the zero-power device obtains energy, the backscatter tag drives the corresponding circuit to adjust the incoming signal and perform backscattering.

[0097] 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, different from 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 taken as examples, and the two modes include: the default mode and the enhanced mode.

[0098] Among them, the default mode can also be called the first mode, low-power mode, zero-power mode, near-zero-power mode, or other names, without limitation. The enhanced mode can 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.

[0099] To enable the single RRC state, after the terminal device initially accesses the network device, it can obtain two sets of configuration information. These two sets of configuration information are respectively applicable to the communication of the terminal device in the default mode and the enhanced mode. Different from the mode switching through RRC signaling in the NR system, in the single RRC state, since the terminal device can obtain the configuration information in different modes in advance, the terminal device can support fast mode changes for 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.

[0100] In addition, the NR protocol supports inactive UEs. For small data transmission (SDT), in order to reduce the data transmission steps and simplify the process, the 3GPP protocol has introduced small packet transmission for inactive UEs. That is, the terminal device can perform small data packet transmission in the inactive state without transitioning to the connected state. At the same time, the terminal device supports one or more small packet transmissions (such as subsequent uplink small data). For subsequent uplink small data, 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.

[0101] For example, as Figure 1 shown, a flowchart of a multi-packet transmission is shown, including:

[0102] S0. The UE is in the RRC inactive state, connection management (CM) - connected.

[0103] S1. The UE sends an RRC resume request, UL SDT data, and / or UL SDT signalling to the receiving next Generation Node B (receiving gNB).

[0104] S2. The receiving gNB sends a RETRIEVE UE CONTEXT REQUEST (SDT indicator, assistance information) to the last serving gNB.

[0105] S3. The last serving gNB sends a RETRIEVE UE CONTEXT RESPONSE to the receiving gNB.

[0106] S4. The last serving gNB decides to continue small data transmission in the RRC inactive state.

[0107] S5. The Receiving gNB sends a path switch request to the access and mobility management function (AMF).

[0108] S6. The AMF returns a path switch request acknowledgment to the Receiving gNB.

[0109] S7. The Receiving gNB sends an RRC release suspend config. to the UE.

[0110] S8. The Receiving gNB sends a UE CONTEXT RELEASE to the last serving gNB.

[0111] Figure 1 In this case, the user plane function (UPF) can be used for the forwarding of small packet data.

[0112] However, for a terminal device in the default mode, since the terminal device is not configured with a dedicated physical uplink control channel (PUCCH) and CSI-RS for the terminal, the network side can only perform resource scheduling in a blind scheduling manner. To ensure performance, the network side usually can only use a low-order modulation and coding scheme (MCS) and a relatively high control channel element (CCE) aggregation level for resource scheduling, resulting in resource waste. For example, if the terminal device is a near-point user with good channel quality, but since the network side has not obtained the channel information, the network side still uses a quadrature phase shift keying (QPSK) modulation method, resulting in a large occupation of time-frequency domain resources and causing unnecessary resource waste. At the same time, for a UE in the default mode, due to the lack of configuration of CSI-RS, the terminal device cannot accurately perform channel measurement.

[0113] In view of this, a communication method provided by an embodiment of the present application is used to assist a network device in performing resource scheduling for a terminal device in the default mode, so that resources can be reasonably allocated to the terminal device. For a terminal device in the default mode, the terminal device can perform channel measurement through sensing or a common signal, and feedback channel quality information to the network device to assist the network device in assisting scheduling, thereby improving the MSC, reducing the CCC aggregation level, and avoiding resource waste.

[0114] Among them, sensing may refer to performing channel measurement based on environmental information to obtain channel quality information. The common signal may include a synchronization signal and a synchronization signal and physical broadcast channel block (SSB) signal, etc. Based on this common signal, the terminal device can perform channel measurement to obtain signal quality information.

[0115] The technical solution of the embodiment of the present application can be applied to wireless communication systems such as. Wireless communication systems include but are not limited to: 5G, satellite communication, NB-IoT, global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access system (WCDMA), code division multiple access 2000 system (CDMA2000), time division-synchronization code division multiple access system (TD-SCDMA), long term evolution (LTE), and the three application scenarios of the next-generation 5G mobile communication system, eMBB, URLLC, and eMTC.

[0116] Among them, a wireless communication system usually consists of cells, each cell contains a base station (BS), and the base station provides communication services to multiple mobile stations (MS). The base station includes a baseband unit (BBU) and a remote radio unit (RRU). The BBU and the RRU can be placed in different locations. For example, the RRU is remotely located in a high-traffic area, and the BBU is placed in the central computer room. The BBU and the RRU can also be placed in the same computer room. The BBU and the RRU can also be different components under a single rack.

[0117] As Figure 2 shown, 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 communicatively connected.

[0118] Among them, the terminal device can also be referred to as a user terminal, a mobile station, etc. The terminal device can be a user equipment (UE), an access terminal, a terminal unit, a user station, a terminal station, a mobile station, a mobile unit, a remote station, a remote terminal, a user terminal (TE), a mobile device, a wireless communication device, a terminal agent, a tablet (pad), a handheld device with wireless communication function, a computing device or other processing devices connected to a wireless modem, a vehicle-mounted device, a vehicle-mounted transceiver unit, a wearable device, or a terminal device. 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 devices 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) terminal device, an augmented reality (AR) terminal device, 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 can be a terminal with communication function in the internet of things (IoT), such as a terminal in V2X (e.g., a vehicle-to-everything device), a terminal in D2D communication, or a terminal in M2M communication, etc. The terminal device can be mobile.

[0119] Embodiments of the present application do not limit the form of the terminal device. The device for implementing the functions of the terminal device may be the terminal device; or it may be a device capable of supporting the terminal device to implement the functions, such as a chip system. The device may be installed in the terminal device or used in matching with the terminal device. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

[0120] Among them, the network device may be used for the terminal device to communicate. For example, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in an LTE system or an enhanced LTE (LTE-advanced, LTE-A) system, such as a traditional macro eNB and a micro eNB in a heterogeneous network scenario. Or, it may include a next generation node B (gNB) in an NR system. Or, it may include a transmission reception point (TRP), a home base station (for example, home evolved NodeB, or homeNode B, HNB), a base band unit (BBU), a BBU pool, or a wireless fidelity (WiFi) access point (AP), etc. Or, it may include a base station in a non-terrestrial network (NTN), that is, it may be deployed on a flying platform or a satellite. In the NTN, the network device may act as a layer 1 (L1) relay, or may act as a base station, or may act as an integrated access and backhual (IAB) node. Or, the network device may be a device that implements the base station function in the IoT, such as a device that implements the base station function in drone communication, V2X, D2D, or machine to machine (M2M).

[0121] In some possible scenarios, the network device can also be a module or unit capable of implementing some functions of a base station. For example, the network device can be a central unit (CU), a distributed unit (DU), a CU - control plane (CP), a CU - user plane (UP), or a radio unit (RU), etc. The CU and the DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0122] In different systems, the 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 can be a network device or a module of a network device in an open radio access network (ORAN) system. In the ORAN system, the CU can also be called an open (O) - CU, the DU can also be called an O - DU, the CU - CP can also be called an O - CU - CP, the CU - UP can also be called an O - CU - UP, and the RU can also be called an O - RU. Any one of the CU (or CU - CP, CU - UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0123] Optionally, the base station in the embodiments of this application can 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. The embodiments of this application do not make specific limitations on this.

[0124] In the embodiments of this application, the form of the network device is not limited. The device for implementing the functions of the network device can be the network device; it can also be a device capable of supporting the network device to implement this function, such as a chip system. This device can be installed in the network device or used in matching with the network device.

[0125] Of course, the communication system provided by the embodiments of this application can also include other network elements or devices, such as core network devices.

[0126] In some examples, Figure 2The communication system shown can be a standalone (SA) communication system or a dual connectivity (DC) communication system.

[0127] For example, as Figure 3 shown, it is an SA communication system. Figure 3 In this case, the terminal device is connected to a single network device, and the base station is connected to the core network device. The network device connected to the terminal device and the core network device connected to the network device have the same system type. For example, both are 5G or both are 6G.

[0128] Another example, as Figure 4 shown, it is a DC communication system. Figure 4 In this case, the terminal device can be connected to network devices of the same / different system types simultaneously, and the terminal device is a connected UE. For example, if the core network is a 5G core, the terminal device can be connected to a 5G network device and a 6G network device simultaneously. The 5G network device can be the master station, and the 6G network device can be the secondary station. Another example, if the core network is a 6G Core, the terminal device can be connected to a 6G network device and a 5G network device simultaneously. The 6G network device can be the master station, and the 5G network device can be the secondary station. Another example, if the core network is a 6G Core, the terminal device is connected to two 6G network devices simultaneously, that is, both the master station and the secondary station are 6G network devices.

[0129] It should be noted that Figures 2 to 4 is an exemplary drawing, Figures 2 to 4 the number of devices shown, Figures 2 to 4 the naming of the interfaces between the devices in it is not restricted. And except for Figures 2 to 4 the network elements shown, Figures 2 to 4 the communication system shown may also include other devices, which is not restricted.

[0130] In specific implementation, Figures 2 to 4 the devices in it can all adopt Figure 5 the composition structure shown, or include Figure 5 the components shown. Figure 5 This is a schematic diagram of the composition of a communication device 500 provided by an embodiment of this application. The communication device 500 can be a terminal device or a chip or system-on-chip in the terminal device. Or, the communication device 500 can be a network device or a chip or system-on-chip in the network device. As Figure 5 shown, the communication device 500 includes a processor 501, a communication interface 502, and a communication line 503.

[0131] Furthermore, the communication device 500 may also include a memory 504. Among them, the processor 501, the memory 504, and the communication interface 502 can be connected through the communication line 503.

[0132] Among them, 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.

[0133] The communication interface 502 is used to communicate with other devices or other communication networks. The other communication network may be an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc. The communication interface 502 may be a module, a circuit, a communication interface, or any device capable of implementing communication.

[0134] The communication line 503 is used to transmit information between the components included in the communication device 500.

[0135] The memory 504 is used to store instructions. Among them, the instructions may be computer programs.

[0136] Among them, the memory 504 may be a read-only memory (ROM) or other types of static storage devices that can store static information and / or instructions, may also be a random access memory (RAM) or other types of dynamic storage devices that can store information and / or instructions, or may also be 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 compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, without limitation.

[0137] It should be noted that the memory 504 can exist independently of the processor 501 or be integrated with the processor 501. The memory 504 can be used to store instructions, program codes, or some data, etc. The memory 504 can be located inside the communication device 500 or outside the communication device 500, without limitation. The processor 501 is used 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.

[0138] In one example, the processor 501 may include one or more CPUs, such as Figure 5 CPU0 and CPU1 in

[0139] As an alternative implementation, the communication device 500 includes multiple processors. For example, in addition to Figure 5 the processor 501 in

[0140] As an alternative implementation, the communication device 500 further includes an output device 505 and an input device 506. Exemplarily, the input device 506 is a device such as a keyboard, a mouse, a microphone, or a joystick, and the output device 505 is a device such as a display screen or a speaker.

[0141] 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 with a Figure 5 similar structure in Figure 5 In addition, the shown component structure in Figure 5 does not constitute a limitation on the terminal device and the network device. In addition to the

[0142] In the embodiments of the present application, the chip system can be composed of chips or can include chips and other discrete devices.

[0143] In addition, actions, terms, etc. involved among the embodiments of the present application can be referred to each other without limitation. The information names or parameter names in the information exchanged between various devices in the embodiments of the present application are only examples, and other names can also be used in specific implementations without limitation. The execution subject of the embodiments of the present application can be a terminal device or a component in the terminal device, such as a chip, etc. It can also be a network device or a component in the network device, such as a chip, etc.

[0144] Based on Figure 2 the communication system shown in Figure 6As shown, a communication method provided by an embodiment of the present application includes S601 and S602.

[0145] S601. The terminal device obtains channel quality information between the terminal device and the network device.

[0146] Among them, the terminal device is configured in a first mode among multiple modes. The multiple modes can at least include a first mode and a second mode. The first mode can be the above-mentioned default mode, and the second mode can be the above-mentioned enhanced mode. The power consumption of the terminal device in the first mode is less than that in the second mode.

[0147] Specifically, the power consumption of the terminal device in the first mode being less than that in the second mode can include at least one of the following: the number of antennas used by the terminal device in the first mode is less than that in the second mode, the bandwidth configured by the terminal device in the first mode is less than that in the second mode, the signal opportunity monitored by the terminal device in the first mode is less than that in the second mode, the functions supported by the terminal device in the first mode are fewer than those 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 (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).

[0148] In some examples, in an embodiment of the present application, the terminal device may be configured with configuration information corresponding to the above multiple modes, or the network device may configure the terminal device with configuration information corresponding to the above multiple modes. The configuration information corresponding to each mode may include configuration parameters of the terminal device in this mode. For example, it may include the number of antennas used, bandwidth, signal opportunity monitored, functions supported, transmission data volume (such as maximum transmission data volume or minimum transmission data volume), etc., without limitation. Based on the configuration information of different modes, the terminal device can determine the current mode it is in.

[0149] Furthermore, in order to implement mode switching, the terminal device may respond to a mode switching instruction for indicating mode switching and perform mode switching. For example, the mode switching instruction may be sent by the network device. For instance, the mode switching instruction may be used to indicate switching from the first mode to the second mode or indicating switching from the second mode to the first mode, etc.

[0150] In some scenarios, after receiving a mode switching instruction for indicating 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.

[0151] In the embodiments of the present application, the channel quality information may also be referred to as channel assistance information, channel information, channel feedback information, media access control control element (MACCE), or other names, which is not limited. The channel quality information may be used to characterize the channel quality between the terminal device and the network device. For example, the channel quality information may include parameters such as the reference signal received power (RSRP) of the channel and the channel quality indicator (CQI) 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), sounding reference signal (SRS), etc., which is not limited.

[0152] In some examples, the channel quality information may further include the channel information of one or more cells accessed by the terminal device and the beam information accessed by the terminal device. The one or more cells may be the cells of the network device or the cells of other network devices, which is not limited.

[0153] In another example, the channel quality information may include multiple time slots. For example. As Figure 7 shown, a schematic diagram of the channel quality information reported by different UEs is shown. Figure 7 In, the P-slot represents the time slot size of the feedback signal. The blank squares indicate no feedback signal, and the filled squares indicate the feedback signal. Figure 7 In, the terminal device may feedback the identifier (UE ID) of the terminal device in the first 7 P-slots and feedback the channel quality in the last four P-slots.

[0154] In a possible implementation manner, the terminal device may obtain the channel quality information between the terminal device and the network device based on sensing or a low-power module, or the terminal device may also obtain the channel quality information based on a trigger. The trigger may include a trigger signal, a trigger condition, etc. Specifically, reference may be made to the descriptions of Embodiment 1 and Embodiment 2 below.

[0155] Among them, obtaining channel quality information based on perception may refer to performing channel measurement based on environmental information of the location where the device is located to obtain channel quality information. The environmental information may include information about obstacles at the location where the terminal device is located (such as buildings, trees, etc.). For the specific obtaining method, reference may be made to the following Embodiment 1. The low-power module may refer to that the terminal device is configured with a low-power module, and the low-power module may obtain channel quality information based on a trigger signal. For the specific obtaining method, reference may be made to the following Embodiment 2. The low-power module may be referred to as the first module, the low-power consumption module, or other names, which is not limited.

[0156] In another possible implementation manner, the terminal device may perform channel measurement based on the configured measurement resources to obtain channel quality information.

[0157] Among them, the measurement resources may be configured by the network device for the terminal device. For example, the measurement resources may include multiple channel information between the terminal device and the network device. For the specific obtaining method, reference may be made to the following Embodiment 2.

[0158] S602. The terminal device sends the channel quality information to the network device. Correspondingly, the network device receives the channel quality information from the terminal device.

[0159] In a possible implementation manner, the terminal device may send the channel quality information to the network device based on the low-power module or the 2-step RACH method.

[0160] Among them, sending the channel quality information to the network device based on the low-power module may refer to that the low-power module of the terminal device feeds back a response signal corresponding to the trigger signal based on the trigger signal. The response signal may be the channel quality information or carry the channel quality information. The 2-step random access channel (RACH) method may refer to that the terminal device sends a PRACH to the network device, and after a preset time duration, sends a PUSCH to the network device. The PUSCH carries the channel quality information. Specifically, reference may be made to the following Embodiment 1 and Embodiment 2.

[0161] Further, the method provided in the embodiments of the present application may further include: The network device performs resource scheduling based on the channel quality information.

[0162] Among them, resource scheduling may refer to configuring resources for the terminal device. For example, it may refer to scheduling the MCS, determining the CCE aggregation level used by the terminal device, etc.

[0163] In one example, taking the determination of the CCE aggregation level of a terminal device based on channel quality information as an example, after receiving the channel quality information sent by the terminal device, the network device may determine whether the terminal device is a far - point user or a near - point user based on the channel quality information. Among them, 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 without limitation.

[0164] Based on Figure 6 the technical solution, for a terminal device in the low - power mode, the terminal device can obtain the 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 configure resources for the terminal device or perform resource scheduling based on the channel quality information fed back by the terminal device. Compared with blind scheduling, since the network device can accurately and reasonably configure resources for the terminal device based on the channel quality information, unnecessary resource waste can be avoided.

[0165] In some embodiments (Embodiment 1), the terminal device obtains the channel quality information based on sensing and sends the channel quality information to the network device. Specifically, as Figure 8 shown, it may include S801 - S803:

[0166] S801. The terminal device obtains the environmental information of its location.

[0167] Among them, the environmental information can be used for channel estimation. For example, the environmental information may include an environmental map.

[0168] In a possible implementation, the terminal device may obtain the environmental information of its location based on dedicated signaling or broadcast information.

[0169] In one example, the terminal device may send a request message for obtaining environmental information to the network device. Correspondingly, after receiving the request message from the terminal device, the network device may send the environmental information to the terminal device. For example, the request message may include the location information of the terminal device (such as coordinate data). Based on this location information, the network device can obtain the environmental information of the location where the terminal device is located and send the environmental information to the terminal device. The network device may be pre - configured with the environmental information of the service area (or coverage range), or the network device may also obtain the environmental information from other devices, such as from the core network device, without limitation.

[0170] In some scenarios, the above environmental information can be carried in the handover signaling. The handover signaling may refer to the signaling that the network device can send to the terminal device when the terminal device performs cell handover. The handover signaling can be used to instruct the terminal device to hand over from the source cell to the target cell. The handover signaling can include the reconfiguration message of the target cell and can also include environmental information.

[0171] In some other scenarios, the above request information can be a separate signaling. For example, after the terminal device reselects to a new cell, it can send request information for obtaining environmental information to the network device.

[0172] In another example, the terminal device can obtain environmental information from the broadcast signal of the network device. That is, the network device can send environmental information in a broadcast manner. The broadcast signal can be the SIB broadcast signal. In this way, the terminal device can receive the broadcast signal from the network device and thus obtain the environmental information.

[0173] S802. The terminal device obtains channel quality information based on the environmental information.

[0174] 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 the obstacles and surrounding objects at the location. Based on the information about the obstacles and surrounding objects, 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 can be understood 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.

[0175] In a possible implementation, the terminal device obtains channel quality information based on a trigger condition. For example, the trigger condition can include a data transmission requirement between the terminal device and the network device. The data transmission requirement can include an uplink data transmission requirement and a downlink data transmission requirement. Among them, both the uplink data and the downlink data are small packet data.

[0176] In one scenario, when the terminal device needs to send uplink data, for example, when the terminal device responds to a user's operation and needs to send data (such as multimedia data, voice data, etc.) to other terminal devices, the terminal device can obtain channel quality information based on the environmental information and send the channel quality information to the network device.

[0177] In another scenario, when the terminal device receives an instruction from the network device indicating that it needs to receive downlink data, for example, when the network device, another terminal device, or a server needs to send downlink data to the terminal device, the terminal device can obtain channel quality information based on this instruction and send the channel quality information to the network device. This instruction can be paging information or a wake up signal.

[0178] 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.

[0179] In the embodiments of the present application, the terminal device can feedback channel quality information based on a manner similar to the transmission of Msg A in two-step RACH. In two-step RACH, the terminal device combines the preamble (Msg1) and the scheduled PUSCH transmission (Msg3) into a single message (MsgA) from the UE, which is called MsgA. In the embodiments of the present application, after the terminal device sends a PRACH to the network device and after a preset time, it can send a PUSCH to the network device. Among them, the PUSCH carries channel quality information (which can also be called channel assistance information MAC CE).

[0180] Among them, the PRACH is associated with the PUSCH. For example, as Figure 9a shown, the PRACH and the PUSCH can be combined into the above MsgA, and there is a time domain offset / time domain interval between the PRACH and the PUSCH.

[0181] In some examples, the PUSCH can correspond to a dedicated preamble. In this way, the network device and the terminal device can determine the PUSCH associated with this 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 for carrying channel quality information based on this preamble and obtain and parse the channel quality information on the PUSCH.

[0182] In some scenarios, the channel quality information is MAC CE type information. The MAC CE corresponds to a MAC sub-header, and the MAC header carries a logical channel identify (LCID). This LCID can be used to indicate the type of the MAC CE. In the embodiments of the present application, the LCID carried in the MAC CE used to indicate channel quality information can be used to indicate that this MAC CE is channel quality information, for example, it can be channel assistance information MAC CE.

[0183] In some scenarios, when the terminal device needs to send uplink data, the channel quality information can be sent simultaneously with the uplink data. For example, it can also be sent based on the two-step RACH method.

[0184] In some examples, such as Figure 9b shown, it is a schematic structural diagram of a channel quality information provided by an embodiment of the present application. For example, the channel quality information may include a cell index, a CQI index, and optionally, beam information. Wherein, R represents reservation.

[0185] Based on Figure 8 the technical solution, the terminal device can obtain the channel quality information based on sensing and feedback the channel quality information to the network device to assist the network device in resource scheduling.

[0186] In some embodiments (Embodiment 2), the terminal device feeds back the channel quality information through a low-power module to assist the network device in resource scheduling. Specifically, as Figure 10 shown, it may include S1001 to S1002.

[0187] S1001. The terminal device obtains the channel quality information.

[0188] Among them, S1001 may refer to the above S601 and will not be elaborated here.

[0189] S1002. When the first trigger condition is met, the terminal device can send the channel quality information to the network device. Correspondingly, the network device receives the channel quality information from the terminal device.

[0190] Among them, the first trigger condition can be used to trigger the terminal device to reflect the channel quality information. For example, when the first preset condition is met, the low-power module of the terminal device can be triggered to reflect a feedback signal. The channel quality information can be carried on the feedback signal.

[0191] In the embodiments of the present application, the low-power module can support low-power technologies. For example, the low-power technologies may include at least one of the following: Chirp technology, OOK technology, A-IoT technology. Of course, other low-power technologies may also be included without limitation. Correspondingly, the feedback signal reflected based on the low-power module may include at least one of the following: Chirp signal, OOK signal, A-IoT signal.

[0192] In some examples, the first preset condition may include at least one of the following:

[0193] 10-1. There is a data transmission requirement between the terminal device and the network device.

[0194] Among them, the data transmission requirements may include uplink data transmission requirements and downlink data transmission requirements. It can be 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.

[0195] In some scenarios, in the presence of data transmission requirements, the terminal device may send a random access. Thus, after the network device establishes a connection with the terminal device, it may send a trigger signal (such as an A-IoT signal). After receiving the trigger signal, the terminal device may transmit a feedback signal.

[0196] 10-2. The channel quality between the terminal device and the network device is higher than a preset threshold.

[0197] Among them, the channel quality being higher than a preset threshold may mean that the channel quality parameter is higher than the preset threshold. For example, the RSRP and / or CQI of the channel are higher than the preset threshold. The preset threshold can be set as needed without limitation.

[0198] In some scenarios, the terminal device may monitor the channel quality between the terminal device and the network device, and when it monitors that the channel quality is higher than the preset threshold, the terminal device may send channel quality information.

[0199] In one example, the terminal device may be configured with multiple groups of resources (such as Figure 11 Resources 1 to 4). 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 the channel quality information corresponding to each group of resources in the multiple groups of resources. In the case where there is a channel with a channel quality higher than the preset threshold among the channels corresponding to the multiple groups of resources, the terminal device may send the channel quality information.

[0200] For example, the terminal device may receive a trigger signal from the network device and, in response to the trigger signal, send a feedback signal corresponding to the trigger signal on the resource with the best channel quality among the multiple groups of resources. The feedback signal may be a feedback signal corresponding to the trigger channel. That is, the feedback signal may not include the channel quality. Thus, based on the channel for transmitting the feedback information, the network device can determine the channel with the best channel quality among the channels corresponding to the multiple groups of resources.

[0201] For example, in combination with Figure 11 , among Resources 1 to 4, the channel quality under Resource 3 is the best, such as the best RSRP. The terminal device may reflect the feedback signal on Resource 3.

[0202] Another example is that the terminal device may send channel quality information on any one of the multiple groups of resources. Thus, based on the channel quality information, the network device can determine the channel with the best channel quality among the multiple groups of resources.

[0203] In another example, one set of resources among the multiple sets of resources configured by the terminal device includes measurement resources and feedback resources. Among them, the measurement resources can be used to measure the channel quality, and the feedback resources can be used to feedback the channel quality information. Both the measurement resources and the feedback resources can be time-domain resources and / or frequency-domain resources.

[0204] For example, the measurement resources and the 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 the channel quality information on the feedback resources. It can be understood that, in the time domain, the measurement resources are located before the feedback resources.

[0205] In another example, the measurement resources and the feedback resources are frequency-domain resources. For each set of resources, the terminal device can perform channel measurement on the measurement resources and feedback the channel quality information on the feedback resources. It can be understood that the frequency bands of the measurement resources and the feedback resources can be the same or different. When the frequency bands of the measurement resources and the feedback resources are different, the measurement resources and the feedback resources can be correlated.

[0206] In another example, the terminal device can perform channel measurement based on a dedicated measurement signal. For example, the dedicated measurement signal can include a cell tracking reference signal (TRS), an SSB, etc.

[0207] Among them, the time-frequency resources, measurement period, etc. corresponding to the dedicated measurement signal can be included in the configuration information of the first mode.

[0208] 10-3. There is a change in the channel quality between the terminal device and the network device.

[0209] Among them, the existence of a change in the channel quality can mean that the change value of the channel quality between the terminal device and the network device exceeds a preset range, or the channel quality of a certain channel among multiple channels between the terminal device and the network device is higher than a preset threshold, or the channel with the best channel quality among multiple channels between the terminal device and the network device changes (such as changing from channel A with the best channel quality to channel B). The preset range and the preset threshold can be set as needed without limitation.

[0210] In one scenario, the terminal device can measure the channel quality between the terminal device and the network device. For example, the terminal device can measure the channel quality with the network device periodically or randomly. In this way, when it measures that there is a change in the channel quality with the network device, the terminal device can feedback the channel quality information.

[0211] 10-4. The terminal device switches from the second mode to the first mode.

[0212] Among them, the second mode can refer to the relevant descriptions in the above embodiments and will not be elaborated here.

[0213] In a scenario, the terminal device can switch from the second mode to the first mode in response to a mode switching instruction. For example, the network device can send a mode switching instruction to the terminal device. In this way, after receiving the mode switching instruction, the terminal device switches from the second mode to the first mode.

[0214] 10-5. The feedback time of the channel quality information.

[0215] Among them, the feedback time can refer to the end moment of a certain measurement period. That is, the terminal device can periodically feedback the measured channel quality information. The duration of the measurement period can be set as needed without limitation.

[0216] In a scenario, the terminal device periodically feedbacks the channel quality information. During a certain measurement period, the terminal device can measure the channel quality with the network device and feedback the measured channel quality at the end of the measurement period.

[0217] For example, if the measurement period is from t1 to t2, the terminal device can start measuring the channel quality with the network device at t1 and send the channel quality information to the network device at t2. The channel quality information can include the channel quality measured by the terminal device during t1 - t2.

[0218] In a possible implementation, the terminal device can be pre-configured with a timer. In this way, the terminal device can determine whether the feedback time of the channel quality information is reached according to the timer and feedback the channel quality information when the feedback time of the channel quality information is reached. For example, after the end of the last feedback period, the terminal device can control the timer to restart timing and perform channel measurement, and when the timer reaches the feedback time, feedback the measured channel quality information.

[0219] In an example, the feedback period can be pre-configured for the terminal device or configured for the terminal by the network device. For example, the network device can configure the feedback period for the terminal device through signaling. For instance, the signaling can include the duration of the feedback period.

[0220] In another example, the terminal device can periodically feedback the channel quality information based on an activation signal. For example, the network device can send an activation instruction to the terminal device, and the activation instruction can be used to instruct the terminal device to periodically feedback the channel quality information. For example, the activation instruction can include the duration of the feedback period. In this way, based on the activation instruction, the terminal device can periodically feedback the channel quality information.

[0221] Based on Figure 10In the technical solution, after the terminal device obtains the channel quality information, it can feedback the channel quality information based on the trigger condition. In this way, the terminal device can report the channel quality information flexibly.

[0222] In some embodiments (Embodiment 3), the terminal device can obtain the channel quality information based on CSI-RS and feedback the channel quality information. Specifically, as Figure 12 shown, it includes S1201 to S1204.

[0223] S1201. The network device sends a trigger signal to the terminal device. Correspondingly, the terminal device receives the trigger signal from the network device.

[0224] Among them, the trigger signal is used to trigger the terminal device to feedback the channel quality information. For example, the trigger signal can include any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal.

[0225] In one scenario, when the network device needs to send data to the terminal device, the network device can send a trigger signal to the terminal device.

[0226] S1202. After a preset duration, the network device sends CSI-RS to the terminal device. Correspondingly, after the preset duration, the terminal device receives the CSI-RS.

[0227] Among them, the CSI-RS signal can include a semi-static CSI-RS signal or an aperiodic CSI-RS signal. The preset duration can be set as needed without limitation.

[0228] S1203. The terminal device obtains the channel quality information based on the CSI-RS.

[0229] In one example, taking the CSI-RS including a semi-static CSI-RS as an example, after the terminal device receives the trigger signal (such as a paging signal), after a preset duration, the terminal device can receive the CSI-RS and perform measurements at the first CSI-RS position to obtain the channel quality information.

[0230] In another example, taking the CSI-RS including a semi-static CSI-RS as an example, after the terminal device completes initial access and receives the conflict resolution MAC CE or MSG B, after a preset duration, it receives the CSI-RS and performs measurements at the first CSI-RS position to obtain the channel quality information.

[0231] S1204. The terminal device sends the channel quality information to the network device. Correspondingly, the network device receives the channel quality information.

[0232] Among them, S1204 can refer to the description of S602 above.

[0233] Further, in the embodiments of the present application, after the second preset condition is satisfied, channel measurement is stopped or CSI-RS resources are released.

[0234] Wherein, the second preset condition may include at least one of the following:

[0235] 12-1. Receiving a mode switching instruction.

[0236] Wherein, the mode switching instruction may be used to indicate a switch from a first mode to a second mode.

[0237] In one scenario, when a large amount of data needs to be transmitted between the terminal device and the network device, the network device may send a mode switching instruction to the terminal device to indicate the terminal device to switch from the first mode to the 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.

[0238] 12-2. Receiving a context release indication.

[0239] Wherein, the context release indication may be used to indicate that the terminal device releases the terminal context information it stores, and the context information includes: radio access bearer configuration, security-related algorithms, keys, compression algorithms, etc.

[0240] In one scenario, when the network device is memory-constrained and cannot retain the context information of all UEs, the network side will release the terminal context. Thus, after receiving the context release indication, the terminal device may stop channel measurement.

[0241] 12-3. Timer timeout.

[0242] Wherein, the timer timeout may refer to the timeout of the time for measuring the channel quality. This timer may be pre-configured for the terminal device.

[0243] In one scenario, the terminal device may control the timer to start timing after receiving a trigger signal, and stop channel measurement when the timer times out.

[0244] Based on Figure 12 the technical solution, in the embodiments of the present application, for a terminal device in a low-power mode, the terminal device may accurately perform channel measurement based on the CSI-RS sent by the network device.

[0245] In some other embodiments (Embodiment 4), in order to accurately determine the mode supported by the terminal device, as Figure 13a shown, the method provided in the embodiments of the present application may further include:

[0246] S1301. The terminal device sends the capability information of the terminal device to the network device. Correspondingly, the network device receives the capability information from the terminal device.

[0247] Among them, the capability information of the terminal device can be used to indicate the modes supported by the terminal device. For example, as Figure 13b shown, the capability information of the terminal device can include common capabilities and dedicated capabilities of multiple modes. The dedicated capabilities of multiple modes can at least include the dedicated capabilities of the first mode and the dedicated capabilities of the second mode. The common capabilities can be applicable to the first mode and the second mode or be the capabilities shared by the first mode and the second mode. The capability information of the first mode can refer to the capability information of the terminal device in the first mode. The capability information of the second mode can be the capability information of the terminal device in the second mode. The capability of the terminal device in the first mode is lower than that in the second mode.

[0248] In one example, the dedicated capabilities of the terminal device in multiple modes can include one or more of the number of transceiver antennas, the maximum supported bandwidth, the time-domain monitoring period (such as PUCCH monitoring), the duplex mode, the CQI table, the MSC table, the support for high-order modulation, the maximum transmit power, whether to support low-power technology, RRM measurement, the inactive state carrier aggregation capability, cross-slot scheduling, PEI, etc.

[0249] Combined with the above example, the fact that the capability of the terminal device in the first mode is lower than that in the second mode can include that the number of transceiver antennas used by the terminal device in the first mode is less than that in the second mode, the maximum bandwidth supported by the terminal device in the first mode is less than that in the second mode, the highest modulation order that the terminal device can support in the first mode is lower than that in the second mode, etc.

[0250] In one scenario, for a single RRC state, after the terminal device initially accesses the network device, the network device can send request information (such as a UE capability enquiry) for requesting to obtain the capability information of the terminal device to the terminal device. After the terminal device receives the request information from the network device, it can report the capability information of the terminal device. For example, the capability information can be UE capability information.

[0251] In another scenario, the terminal device can 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 can send the capability information of the terminal device to the network device.

[0252] S1302. The network device configures configuration information matching the capability information for the terminal device according to the capability information of the terminal device.

[0253] Among them, the configuration information may include configuration parameters required for the modes supported by the terminal device. For example, it may include antenna data, modulation order, maximum bandwidth, etc. used in different modes.

[0254] Furthermore, when the network device performs data transmission subsequently, it can determine whether the terminal device supports the first mode and the second mode based on the capability information of the terminal device. In this way, the network device can perform corresponding capability activation based on the mode supported by the terminal device. For example, when the capability information of the terminal device is used to indicate that the terminal device supports the first mode, when the network device and the terminal device need to perform small-data-volume data transmission, the network device can send a mode switching instruction to the terminal device to indicate switching from the second mode to the first mode. In this way, the power consumption of the terminal device during data reception and transmission can be reduced.

[0255] Based on Figure 13a the technical solution, 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 mode based on the capability information of the terminal device.

[0256] The various solutions in the above embodiments of the present application can be combined without conflict.

[0257] Among them, the actions of the terminal device in S601, S602, S801, S802, S803, S1001, S1002, S1203, and S1204 can be called by the processor 501 in the communication device 500 shown in Figure 5 to execute the application program code stored in the memory 504 to instruct the communication device 500 to execute. The actions of the network device in S1201 to S1202 can be called by the processor 501 in the communication device 500 shown in Figure 5 to execute the application program code stored in the memory 504 to instruct the communication device 500 to execute. The embodiments of the present application do not impose any restrictions on this.

[0258] The above mainly introduces the solution provided by the embodiments of the present application from the perspective of the interaction between each network element. Correspondingly, the embodiments of the present application also provide a communication device, which is used to implement the above various methods. The communication device may be the terminal device in the above method embodiments, or a component applicable to the terminal device; or, the communication device may be the network device in the above method embodiments, or a component applicable to the network device. It can be understood that in order to implement the above functions, the communication device includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0259] The embodiments of the present application can divide functional modules for the communication device according to the above method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. It should be understood that the division of modules in the embodiments of the present application is illustrative, only a logical functional division, and there may be other division methods in actual implementation.

[0260] For example, taking the communication device as the terminal device in the above method embodiments as an example, Figure 14 FIG. 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 can also be referred to as a transceiver unit, is used to implement the transceiver function. For example, it can be a transceiver circuit, a transceiver, a transceiver or a communication interface.

[0261] Among them, the transceiver module 1401 is used to obtain the channel quality information between the terminal device and the network device. The transceiver module 1401 is also used to send the channel quality information to the network device.

[0262] Among them, the transceiver module 1401 can be used to implement the transceiver function corresponding to the terminal device in the above method embodiments, and the processing module 1402 can be used to implement the processing function corresponding to the terminal device in the above method embodiments. Therefore, all the relevant contents of each step involved in the above method embodiments can be cited in the function descriptions of the corresponding functional modules, and will not be elaborated here.

[0263] In the embodiments of the present application, the terminal device 1400 is presented in the form of integrating and dividing each functional module. Here, a "module" may refer to a specific ASIC, circuit, a processor and a memory that execute one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can conceive that the terminal device 1400 can adopt Figure 5 the form of the communication device 500 shown.

[0264] For example, Figure 5 the processor 501 in the communication device 500 shown can execute the communication method in the above method embodiments by calling the computer-executable instructions stored in the memory 504.

[0265] Specifically, Figure 14 the functions / implementation processes of the transceiver module 1401 and the processing module 1402 in Figure 5 can be implemented by the processor 501 in the communication device 500 shown calling the computer-executable instructions stored in the memory 504. Or, Figure 14 the function / implementation process of the processing module 1402 in Figure 5 can be implemented by the processor 501 in the communication device 500 shown calling the computer-executable instructions stored in the memory 504, Figure 14 the function / implementation process of the transceiver module 1401 in Figure 5 can be implemented by the communication interface 502 in the communication device 500 shown.

[0266] Since the terminal device 1400 provided in the embodiments of the present application can execute the above communication method, the technical effects it can obtain can refer to the above method embodiments and will not be elaborated here.

[0267] Or, for example, taking the communication device as the network device in the above method embodiments as an example, Figure 15 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, which can also be referred to as a transceiver unit, is used to implement the transceiver function. For example, it can be a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0268] Among them, the transceiver module 1501 is used to receive the channel quality information from the terminal device. The processing module 1502 is used to configure resources for the terminal device based on the channel quality information.

[0269] Among them, the transceiver module 1501 can be used to implement the transceiver functions corresponding to the network device in the above method embodiments, and the processing module 1502 can be used to implement the processing functions corresponding to the network device in the above method embodiments. Therefore, all relevant contents of each step involved in the above method embodiments can be cited in the function descriptions of the corresponding functional modules, and will not be elaborated here.

[0270] In the embodiments of the present application, the network device 1500 is presented in the form of integrating and dividing each functional module. Here, a "module" can refer to a specific ASIC, circuit, a processor and a memory that execute one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can think that the network device 1500 can adopt Figure 5 the form of the communication device 500 shown.

[0271] For example, Figure 5 the processor 501 in the communication device 500 shown can call the computer execution instructions stored in the memory 504, so that the communication device 500 executes the communication method in the above method embodiments.

[0272] Specifically, Figure 15 the functions / implementation processes of the transceiver module 1501 and the processing module 1502 in Figure 5 can be implemented by the processor 501 in the communication device 500 shown calling the computer execution instructions stored in the memory 504. Or, Figure 15 the functions / implementation processes of the processing module 1502 in Figure 5 can be implemented by the processor 501 in the communication device 500 shown calling the computer execution instructions stored in the memory 504, Figure 15 the functions / implementation processes of the transceiver module 1501 in Figure 5 can be implemented by the communication interface 302 in the communication device 500 shown.

[0273] Since the network device 1500 provided in this embodiment can execute the above communication method, the technical effects it can obtain can refer to the above method embodiments and will not be elaborated here.

[0274] It should be understood that one or more of the above modules or units can be implemented by software, hardware, or a combination of both. When any of the above modules or units is implemented by software, the software exists in the form of computer program instructions and is stored in the memory. The processor can be used to execute the program instructions and implement the above method flow. The processor can be built into the SoC (System on Chip) or ASIC, or it can be an independent semiconductor chip. In addition to the core in the processor for executing software instructions for arithmetic or processing, it can further include necessary hardware accelerators, such as field programmable gate array (FPGA), PLD (Programmable Logic Device), or logic circuits for implementing dedicated logic operations.

[0275] When the above modules or units are implemented by hardware, the hardware can be any one or any combination of CPU, microprocessor, digital signal processing (DSP) chip, micro controller unit (MCU), artificial intelligence processor, ASIC, SoC, FPGA, PLD, dedicated digital circuit, hardware accelerator, or non-integrated discrete device, which can run the necessary software or execute the above method flow without relying on software.

[0276] Optionally, an embodiment of the present application further provides a communication device (for example, the communication device can be a chip or a chip system). The communication device includes a processor for implementing the method in any of the above method embodiments. In a possible design, the communication device further 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 can be composed of chips or can include chips and other discrete devices. The embodiments of the present application do not make specific limitations in this regard.

[0277] In a possible implementation manner, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program or instructions. When it runs on the communication device, it enables the communication device to execute the method described in any of the above method embodiments or any of its implementation manners.

[0278] In a possible implementation manner, an embodiment of the present application further provides a communication system. The communication system includes the terminal device described in the above method embodiment and the network device described in the above method embodiment.

[0279] 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.

[0280] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state drive (SSD)), etc.

[0281] Although the present application has been described in conjunction with various embodiments herein, however, in the process of implementing the claimed present application, those skilled in the art can understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure content, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality. A single processor or other unit can implement several functions recited in the claims. Certain measures are recited in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0282] Although the present application has been described in connection with specific features and their embodiments, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

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 at least include 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; the method includes: Obtain the channel quality information between the terminal device and the network device; send the channel quality information 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 being less than that in the second mode includes 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 days 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 fewer than the channel opportunities monitored in the second mode; The functions supported by the terminal device in the first mode are fewer 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, the method further includes: Obtain the environmental information of the location where the terminal device is located.

4. The method according to claim 3, characterized in that, the acquisition method of the environmental information includes at least one of the following: Handover signaling; Information System Block SIB broadcast signal; Request information for obtaining the environmental information.

5. The method according to claim 3 or 4, characterized in that, the channel quality information between the terminal device and the network device includes: Based on the environmental information, obtain the channel quality information.

6. The method according to any one of claims 1-5, characterized in that, sending the channel quality information to the network device includes: After sending the Physical Random Access Channel PRACH, after a preset time interval, send the Physical Uplink Shared Channel PUSCH; 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 1-7, characterized in that, the channel quality information includes the channel information of one or more cells accessed by the terminal device and / or the beam information accessed.

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 that when using the second module; the channel quality information between the terminal device and the network device includes: Obtain the channel quality information through the first module; sending the channel quality information to the network device includes: Send the channel quality information to the network device through the first module.

10. The method according to claim 9, Characterized in that, The first module is a module supporting low-power technologies, and the low-power technologies include at least one of the following: Chirp technology, On-Off Keying (OOK) technology, 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: Chirp signal, OOK signal, A-IoT signal.

12. The method according to any one of claims 1-11, Characterized in that, Sending the channel quality information to the network device includes: Sending the channel quality information to the network device when a first trigger condition is satisfied.

13. The method according to claim 12, Characterized in that, The first trigger condition includes at least one of the following: There is a data transmission requirement 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; The channel quality between the terminal device and the network device changes; The terminal device switches from the second mode to the first mode; The feedback time of the channel quality information is reached.

14. The method according to any one of claims 1-13, Characterized in that, Sending the channel quality information to the network device includes: Obtaining time-frequency resources for sending the channel quality information; Based on the time-frequency resources, transmitting a reflection signal to the network device; the reflection signal carries the channel quality information.

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

16. The method according to any one of claims 1-14, Characterized in that, Obtaining the channel quality information between the terminal device and the network device includes: After receiving a trigger signal, after a preset duration, receiving a Channel State Information Reference Signal (CSI-RS), and based on the CSI-RS, obtaining the channel quality information; 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 1-16, Characterized in that, The method further includes: Stopping channel measurement after a second trigger condition is satisfied; wherein the second trigger condition includes at least one of the following: Receiving a mode switch instruction for instructing to switch from the first mode to the second mode; Receiving a context release indication; Timer timeout.

18. A communication method, Characterized in that, Applied to a network device, the method includes: Receiving the channel quality information between the terminal device and the network device reported by the terminal device; Configuring resources for the terminal device based on the channel quality information.

19. The method according to claim 18, wherein, the method further comprises: configuring multiple modes for the terminal device, the multiple modes at least including a first mode and a second mode, the power consumption of the terminal device in the first mode being less than that in the second mode; the channel quality information being the feedback from the terminal device in the first mode.

20. The method according to claim 19, wherein, the method further comprises: sending environment information to the terminal device.

21. The method according to any one of claims 18-20, wherein, the receiving the channel quality information reported by the terminal device between the terminal device and the network device includes: after receiving the PRACH sent by the terminal device, receiving the PUSCH sent by the terminal device after a preset time interval; the PUSCH carrying the channel quality information.

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

23. The method according to any one of claims 18-22, wherein, the method further comprises: sending time-frequency resources to the terminal device, the time-frequency resources being used to receive the channel quality information.

24. The method according to any one of claims 18-23, wherein, the method further comprises: configuring multiple groups of transmission resources for the terminal device.

25. The method according to claim 24, wherein, the method further comprises: sending a trigger signal to the terminal device; receiving the feedback signal corresponding to the trigger signal on a first transmission resource; the first transmission resource being the transmission resource with the best quality among the multiple groups of transmission resources.

26. The method according to any one of claims 18-25, wherein, the method further comprises: sending a trigger signal to the terminal device; the trigger signal including any one of a paging signal, a conflict resolution MAC CE signal, and a MSG B signal; sending a CSI-RS signal to the terminal device after a preset duration.

27. A communication device, wherein, it includes a module for executing the method according to any one of claims 1-17, or a module for executing the method according to any one of claims 18-26.

28. A communication device, wherein, the communication device includes one or more processors and one or more memories; one or more memories are coupled to one or more processors, and one or more memories are used to store computer program code or computer instructions; when one or more processors execute the computer instructions, the communication device executes the method according to any one of claims 1-17, or executes the method according to any one of claims 18-26.

29. A computer-readable storage medium, wherein, A computer-readable storage medium stores computer instructions or programs, which, when run on a computer, cause the computer to execute the method according to any one of claims 1-17 or any one of claims 18-26.

30. A communication system, characterized in that it includes a terminal device and a network device, the terminal device is configured to execute the method according to any one of claims 1-17, and the network device is configured to execute the method according to any one of claims 18-26.

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