Communication method and device

Abstract

A communication method and apparatus are used for reducing power consumption of a terminal device. The method may include receiving a first signal, and determining whether to receive and / or transmit a first channel based on the first signal. Based on the above method, the terminal device can determine whether to receive and / or send the first channel based on the first signal, so that the first channel can not be received and / or sent in some cases, thereby reducing the power consumption of the terminal device.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] With the development of communication technology, the power consumption of network devices and terminal devices has become increasingly prominent. For example, before data transmission between network devices and terminal devices, network devices send data scheduling information, such as the Physical Downlink Control Channel (PDCCH), to the terminal devices. To avoid losing scheduling information, terminal devices need to frequently check the PDCCH according to the network device's configuration. However, this frequent PDCCH checking by terminal devices leads to higher power consumption. Currently, research on power saving for terminal devices is becoming increasingly widespread, and detailed optimization schemes to reduce terminal device power consumption have become a research direction in the industry. Summary of the Invention

[0003] This application provides a communication method and apparatus to reduce the power consumption of terminal devices.

[0004] In a first aspect, this application provides a communication method that can be applied to a communication device, which can be a terminal device or a component within the terminal device (e.g., a processor, chip, chip system, circuit, or functional module). The method may include: receiving a first signal and, based on the first signal, determining whether to receive and / or transmit a first channel.

[0005] Based on the above communication method, the terminal device can determine whether to receive and / or transmit the first channel based on the first signal. In some cases, it can choose not to receive and / or transmit the first channel, thereby reducing the power consumption of the terminal device.

[0006] In one possible design, determining whether to receive and / or transmit the first channel based on the first signal can be achieved by determining whether to receive and / or transmit the first channel based on parameters associated with the first signal. This allows for flexible and accurate determination of whether to receive and / or transmit the first channel based on parameters associated with the first signal, while also saving signaling overhead.

[0007] In one possible design, the parameters associated with the first signal include one or more of the following: the sequence of the demodulation reference signal (DMRS) of the PDCCH, the sequence type, the sequence initialization method, the sequence initialization value, the sequence initialization formula, the scrambling identification (ID) associated with the sequence initialization formula, the scrambling sequence, the scrambling sequence ID, the resource mapping, the resource mapping method, the associated beam, the associated transmission configuration indicator (TCI), the associated large-scale parameters, and the associated control resource set (CORESET).

[0008] In one possible design, the parameters associated with the first signal can be predefined, preconfigured, or signaled.

[0009] In one possible design, determining whether to receive and / or transmit the first channel based on the first signal can be achieved by determining whether to receive and / or transmit the first channel based on the resources of the first signal. This allows for flexible and accurate determination of whether to receive and / or transmit the first channel based on the resources of the first signal, while also saving signaling overhead.

[0010] In one possible design, the resources of the first signal include one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources. This allows for flexible determination of whether to receive and / or transmit the first channel using a variety of resources.

[0011] In one possible design, determining whether to receive and / or transmit the first channel based on the resources of the first signal can be achieved by: receiving and / or transmitting the first channel when the resources of the first signal are of a first resource type; and not receiving and / or not transmitting the first channel when the resources of the first signal are of a second resource type. This allows for accurate determination of whether to receive and / or transmit the first channel based on the different resources of the first signal, thereby reducing the power consumption of the terminal device and minimizing signaling overhead by eliminating the need for additional signaling.

[0012] In one possible design, the first resource is a first subcarrier group, and the second resource is a second subcarrier group. This allows the determination of whether to receive and / or transmit the first channel based on the frequency domain resources of the first signal.

[0013] In one possible design, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs); the second subcarrier group includes the second, sixth, and tenth subcarriers within the same RB. This allows the location of the first signal on the subcarrier to determine whether to receive and / or transmit the first channel.

[0014] In one possible design, the first resource is a first code, and the second resource is a second code. The first code and the second code can be orthogonal codes or non-orthogonal codes. This allows the determination of whether to receive and / or transmit the first channel using the code used by the first signal.

[0015] In one possible design, the non-orthogonal code can be a non-orthogonal multiple access (NoMA) code, a sparse code multiple access (SCMA) code, a pattern division multiple access (PDMA) code, a multiple user shared access (MUSA) code, an interleave division multiple access (IDMA) code, etc.

[0016] In one possible design, the first resource is a first orthogonal coverage code, and the second resource is a second orthogonal coverage code. This allows the determination of whether to receive and / or transmit the first channel using the orthogonal coverage code used by the first signal.

[0017] In one possible design, the first resource is a first spatial precoding, and the second resource is a second spatial precoding. This allows the determination of whether to receive and / or transmit the first channel based on the spatial precoding used by the first signal.

[0018] In one possible design, the first resource is a first antenna, and the second resource is a second antenna. This allows the antenna transmitting the first signal to determine whether to receive and / or transmit the first channel.

[0019] In one possible design, the first resource is a first antenna port, and the second resource is a second antenna port. This allows the antenna port used for first signal transmission to determine whether to receive and / or transmit the first channel.

[0020] In one possible design, the first signal is used for demodulation of the first channel.

[0021] In one possible design, the first channel is the physical downlink control channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH. This can save the receiving power consumption of the PDCCH, thereby reducing the power consumption of the terminal device.

[0022] In one possible design, the first channel is a physical downlinkshare channel (PDSCH), and the first signal is the DMRS of the PDSCH. This can save the receiving power consumption of the PDSCH, thereby reducing the power consumption of the terminal device.

[0023] In one possible design, the first channel is a PDCCH, and the first signal is a DMRS of the PDSCH. This can save power consumption when receiving the PDCCH, thereby reducing the power consumption of the terminal device.

[0024] In one possible design, the first channel is PDSCH, and the first signal is DMRS of PDCCH. This can save power consumption during PDSCH reception, thereby reducing the power consumption of the terminal device.

[0025] In one possible design, the first signal includes one or more of the following: DMRS, channel state information reference signal (CSI-RS), synchronizing signal (SS), synchronizing signal block (SSB), tracking reference signal (TRS), positioning reference signal (PRS), sounding reference signal (SRS), sensing signal, random access preamble, on-off keying (OOK) sequence, pseudo-random sequence (such as ZC (Zadoff-Chu) sequence), orthogonal frequency-division multiplexing (OFDM) signal, OFDM derivative signal, orthogonal time-frequency space (OTFS) signal, or linear frequency modulation (LFM) signal, etc. This allows for flexible determination of whether to receive and / or transmit the first channel using multiple signals.

[0026] Secondly, this application provides a communication method that can be applied to a communication device, which can be a network device or a component within the network device (e.g., a processor, chip, chip system, circuit, or functional module). The method may include: transmitting a first signal; receiving and / or transmitting a first channel when the first signal is located at a first resource; and not receiving and / or not transmitting the first channel when the first signal is located at a second resource.

[0027] Based on the above communication method, the network device can determine whether to receive and / or transmit the first channel based on the first signal, so that the terminal device can determine whether to receive and / or transmit the first channel based on the first signal. In this way, the first channel can be not received and / or not transmitted in some cases, thereby reducing the power consumption of the terminal device.

[0028] In one possible design, either the first resource or the second resource includes one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources. This allows for flexible determination of whether to receive and / or transmit the first channel using multiple resources.

[0029] In one possible design, the first resource is a first subcarrier group, and the second resource is a second subcarrier group. This allows the determination of whether to receive and / or transmit the first channel based on the frequency domain resources of the first signal.

[0030] In one possible design, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs); the second subcarrier group includes the second, sixth, and tenth subcarriers within the same RB. This allows the location of the first signal on the subcarrier to determine whether to receive and / or transmit the first channel.

[0031] In one possible design, the first resource is a first code, and the second resource is a second code. The first code and the second code can be orthogonal codes or non-orthogonal codes. This allows the determination of whether to receive and / or transmit the first channel using the code used by the first signal.

[0032] In one possible design, the non-orthogonal code can be a non-orthogonal multiple access (NoMA) code, a sparse code multiple access (SCMA) code, a pattern division multiple access (PDMA) code, a multiple user shared access (MUSA) code, an interleave division multiple access (IDMA) code, etc.

[0033] In one possible design, the first resource is a first orthogonal coverage code, and the second resource is a second orthogonal coverage code. This allows the determination of whether to receive and / or transmit the first channel using the orthogonal coverage code used by the first signal.

[0034] In one possible design, the first resource is a first spatial precoding, and the second resource is a second spatial precoding. This allows the determination of whether to receive and / or transmit the first channel based on the spatial precoding used by the first signal.

[0035] In one possible design, the first resource is a first antenna, and the second resource is a second antenna. This allows the antenna transmitting the first signal to determine whether to receive and / or transmit the first channel.

[0036] In one possible design, the first resource is a first antenna port, and the second resource is a second antenna port. This allows the antenna port used for first signal transmission to determine whether to receive and / or transmit the first channel.

[0037] In one possible design, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH. This can save the receiving power consumption of the PDCCH, thereby reducing the power consumption of the terminal device.

[0038] In one possible design, the first channel is a physical downlinkshare channel (PDSCH), and the first signal is the DMRS of the PDSCH. This can save the receiving power consumption of the PDSCH, thereby reducing the power consumption of the terminal device.

[0039] In one possible design, the first channel is a PDCCH, and the first signal is a DMRS of the PDSCH. This can save power consumption when receiving the PDCCH, thereby reducing the power consumption of the terminal device.

[0040] In one possible design, the first channel is PDSCH, and the first signal is DMRS of PDCCH. This can save power consumption during PDSCH reception, thereby reducing the power consumption of the terminal device.

[0041] In one possible design, the first signal is used for demodulation of the first channel.

[0042] In one possible design, the first signal includes one or more of the following: demodulation reference signal DMRS, channel state information reference signal CSI-RS, synchronization signal, synchronization signal block SSB, tracking reference signal TRS, positioning reference signal PRS, probe reference signal SRS, or sensing signal. This allows for flexible determination of whether to receive and / or transmit the first channel using multiple signals.

[0043] Thirdly, this application provides a communication method that can be applied to a communication device, which can be a terminal device or a component within the terminal device (e.g., a processor, chip, chip system, circuit, or functional module). The method may include: detecting a first signal; when the first signal is detected, receiving and / or transmitting a first channel; and when the first signal is not detected, not receiving and / or not transmitting the first channel.

[0044] Based on the above communication method, the terminal device can determine whether to receive and / or send the first channel based on whether the first signal is detected. In this way, the terminal device can choose not to receive and / or send the first channel in some cases, thereby reducing the power consumption of the terminal device.

[0045] In one possible design, the first signal can be detected by detecting the first signal in a first resource. This allows determining whether to receive and / or transmit the first channel by checking if the first signal is detected in the first resource, without introducing additional signaling and thus reducing signaling overhead.

[0046] In one possible design, the first resource may include one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources. This allows for flexible determination of whether to receive and / or transmit the first channel using multiple resources.

[0047] In one possible design, the first resource is a first subcarrier group. Thus, whether to receive and / or transmit the first channel can be determined by whether a first signal is detected in the first subcarrier group.

[0048] In one possible design, the first subcarrier group includes a first subcarrier, a fifth subcarrier, and a ninth subcarrier within each of one or more resource blocks (RBs). Thus, whether to receive and / or transmit the first channel can be determined by whether a first signal is detected on the first, fifth, and ninth subcarriers within one or more RBs.

[0049] In one possible design, the first resource is a first code. The first code can be an orthogonal code or a non-orthogonal code. Thus, whether to receive and / or transmit the first channel can be determined by whether a first signal is detected using the first code.

[0050] In one possible design, the non-orthogonal code can be a non-orthogonal multiple access (NoMA) code, a sparse code multiple access (SCMA) code, a pattern division multiple access (PDMA) code, a multiple user shared access (MUSA) code, an interleave division multiple access (IDMA) code, etc.

[0051] In one possible design, the first resource is a first orthogonal coverage code. This allows determining whether to receive and / or transmit the first channel by checking if a first signal is detected using the first orthogonal coverage code.

[0052] In one possible design, the first resource is a first spatial precoding. This allows determining whether to receive and / or transmit the first channel by checking if a first signal is detected during the first spatial precoding.

[0053] In one possible design, the first resource is a first antenna. This allows determining whether to receive and / or transmit the first channel by checking whether the first antenna detects a first signal.

[0054] In one possible design, the first resource is a first antenna port. This allows determining whether to receive and / or transmit the first channel by whether a first signal is detected at the first antenna port.

[0055] In one possible design, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH. This can save the receiving power consumption of the PDCCH, thereby reducing the power consumption of the terminal device.

[0056] In one possible design, the first channel is a physical downlinkshare channel (PDSCH), and the first signal is the DMRS of the PDSCH. This can save the receiving power consumption of the PDSCH, thereby reducing the power consumption of the terminal device.

[0057] In one possible design, the first channel is a PDCCH, and the first signal is a DMRS of the PDSCH. This can save power consumption when receiving the PDCCH, thereby reducing the power consumption of the terminal device.

[0058] In one possible design, the first channel is PDSCH, and the first signal is DMRS of PDCCH. This can save power consumption during PDSCH reception, thereby reducing the power consumption of the terminal device.

[0059] In one possible design, the first signal is used for demodulation of the first channel.

[0060] In one possible design, the first signal includes one or more of the following: a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a synchronization signal, a synchronization signal block (SSB), a tracking reference signal (TRS), a positioning reference signal (PRS), a probe reference signal (SRS), or a sensing signal. This allows for flexible determination of whether to receive and / or transmit the first channel by detecting multiple signals.

[0061] Fourthly, this application provides a communication method that can be applied to a communication device, which can be a network device or a component within the network device (e.g., a processor, chip, chip system, circuit, or functional module). The method may include: transmitting a first signal located at a first resource; and receiving and / or transmitting a first channel.

[0062] Based on the above communication method, when the network device sends a first signal based on the first resource, it receives and / or sends a first channel, so that the terminal device can determine whether to receive and / or send the first channel based on whether the first signal is detected in the first resource. In this way, the first channel can be not received and / or not sent in some cases, thereby reducing the power consumption of the terminal device.

[0063] In one possible design, the first resource includes one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources. This allows for flexible transmission of the first signal using multiple resources, enabling the terminal device to flexibly detect the presence of the first signal across various resources.

[0064] In one possible design, the first resource is a first subcarrier group. This allows the terminal device to determine whether to receive and / or transmit the first channel by whether a first signal is detected in the first subcarrier group.

[0065] In one possible design, the first subcarrier group includes a first subcarrier, a fifth subcarrier, and a ninth subcarrier within each of one or more resource blocks (RBs). This allows the terminal device to determine whether to receive and / or transmit the first channel by detecting a first signal on the first, fifth, and ninth subcarriers within one or more RBs.

[0066] In one possible design, the first resource is a first code. The first code can be an orthogonal code or a non-orthogonal code. Thus, whether to receive and / or transmit the first channel can be determined by whether a first signal is detected using the first code.

[0067] In one possible design, the non-orthogonal code can be a non-orthogonal multiple access (NoMA) code, a sparse code multiple access (SCMA) code, a pattern division multiple access (PDMA) code, a multiple user shared access (MUSA) code, an interleave division multiple access (IDMA) code, etc.

[0068] In one possible design, the first resource is a first orthogonal coverage code. This allows the terminal device to determine whether to receive and / or transmit the first channel by whether a first signal is detected in the first orthogonal coverage code.

[0069] In one possible design, the first resource is a first spatial precoding. This allows determining whether to receive and / or transmit the first channel by checking if a first signal is detected during the first spatial precoding.

[0070] In one possible design, the first resource is a first antenna. This allows determining whether to receive and / or transmit the first channel by checking whether the first antenna detects a first signal.

[0071] In one possible design, the first resource is a first antenna port. This allows the terminal device to determine whether to receive and / or transmit the first channel by detecting whether a first signal is detected at the first antenna port.

[0072] In one possible design, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH. This can save the receiving power consumption of the PDCCH, thereby reducing the power consumption of the terminal device.

[0073] In one possible design, the first channel is a physical downlinkshare channel (PDSCH), and the first signal is the DMRS of the PDSCH. This can save the receiving power consumption of the PDSCH, thereby reducing the power consumption of the terminal device.

[0074] In one possible design, the first channel is a PDCCH, and the first signal is a DMRS of the PDSCH. This can save power consumption when receiving the PDCCH, thereby reducing the power consumption of the terminal device.

[0075] In one possible design, the first channel is PDSCH, and the first signal is DMRS of PDCCH. This can save power consumption during PDSCH reception, thereby reducing the power consumption of the terminal device.

[0076] In one possible design, the first signal is used for demodulation of the first channel.

[0077] In one possible design, the first signal includes one or more of the following: a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a synchronization signal, a synchronization signal block (SSB), a tracking reference signal (TRS), a positioning reference signal (PRS), a probe reference signal (SRS), or a sensing signal. This allows the terminal device to flexibly determine whether to receive and / or transmit the first channel by detecting multiple signals.

[0078] Fifthly, this application also provides a communication device, which may be a terminal device or a component within a terminal device (e.g., a processor, chip, chip system, circuit, or functional module). This communication device has the functionality to implement the methods described in the first aspect or various possible design examples of the first aspect, or the methods described in the third aspect or various possible design examples of the third aspect. The functionality can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the described functionality.

[0079] In one possible design, the communication device may include a processing unit, and optionally a transceiver unit. These units may perform the functions of the methods described in the first aspect or various possible design examples of the first aspect, or the third aspect or various possible design examples of the third aspect, which will not be elaborated here.

[0080] In one possible design, the communication device includes one or more processors, and optionally also includes a memory and / or a transceiver. The transceiver is used to send and receive data, messages, or information, and to communicate and interact with other devices in the system. The processor is configured to support the communication device in performing the corresponding functions of the first aspect or various possible design examples of the first aspect, or the third aspect or various possible design examples of the third aspect. The memory is coupled to the processor and stores the necessary program instructions and data of the communication device.

[0081] Sixthly, this application also provides a communication device, which may be a network device or a component within a network device (e.g., a processor, chip, chip system, circuit, or functional module). This communication device has the functionality to implement the methods described in the second aspect or various possible design examples of the second aspect, or the fourth aspect or various possible design examples of the fourth aspect. The functionality can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the described functionality.

[0082] In one possible design, the communication device may include a processing unit, and optionally a transceiver unit. These units may perform the functions of the methods described in the second aspect or various possible design examples of the second aspect, or the fourth aspect or various possible design examples of the fourth aspect, which will not be elaborated here.

[0083] In one possible design, the communication device includes one or more processors, and optionally also includes a memory and / or a transceiver. The transceiver is used to send and receive data, messages, or information, and to communicate and interact with other devices in the system. The processor is configured to support the communication device in performing the functions described in the second aspect or various possible design examples of the second aspect, or the fourth aspect or various possible design examples of the fourth aspect. The memory is coupled to the processor and stores the necessary program instructions and data for the communication device.

[0084] In a seventh aspect, embodiments of this application provide a communication system that may include a network device and a terminal device. The terminal device may be used to implement the methods described in the first aspect or various possible design examples of the first aspect, and the network device may be used to implement the methods described in the second aspect or various possible design examples of the second aspect. Alternatively, the terminal device may be used to implement the methods described in the third aspect or various possible design examples of the third aspect, and the network device may be used to implement the methods described in the fourth aspect or various possible design examples of the fourth aspect.

[0085] Eighthly, embodiments of this application provide a computer-readable storage medium storing program instructions that, when executed on a computer, cause the computer to perform the methods described in the first aspect and any possible design of the embodiments of this application, or in the second aspect and any possible design of the second aspect, or in the third aspect and any possible design of the third aspect, or in the fourth aspect and any possible design of the fourth aspect. Exemplarily, the computer-readable storage medium can be any available medium accessible to a computer. For example, but not limited to, a computer-readable medium can include a non-transient computer-readable medium, random-access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM or other optical disk storage, magnetic disk storage media, or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible to a computer.

[0086] Ninthly, embodiments of this application provide a computer program product, including a computer program or instructions, which, when executed on a computer, cause the method described in the first aspect or any possible design of the first aspect, or in the second aspect or any possible design of the second aspect, or in the third aspect or any possible design of the third aspect, or in the fourth aspect or any possible design of the fourth aspect to be performed.

[0087] In a tenth aspect, this application also provides a chip or chip system, including one or more processors, said processors being coupled to at least one memory for reading and executing program instructions stored in said memory to enable the chip or chip system to implement the methods described in the first aspect or any possible design of the first aspect, or in the second aspect or any possible design of the second aspect, or in the third aspect or any possible design of the third aspect, or in the fourth aspect or any possible design of the fourth aspect.

[0088] For the various aspects of the fifth to tenth aspects mentioned above, and the technical effects that each aspect may achieve, please refer to the description of the technical effects that can be achieved for the first aspect or the various possible solutions in the first aspect, or the second aspect or the various possible solutions in the second aspect, or the third aspect or the various possible solutions in the third aspect, or the fourth aspect or the various possible solutions in the fourth aspect. It will not be repeated here. Attached Figure Description

[0089] Figure 1A schematic diagram of the architecture of a communication system provided in this application;

[0090] Figure 2 A schematic diagram of an O-RAN system provided in this application;

[0091] Figure 3 This application provides a diagram illustrating the network element functional division and protocol layer structure of an O-RAN device.

[0092] Figure 4 A flowchart illustrating a communication method provided in this application;

[0093] Figure 5 A schematic diagram of DMRS transmission of a PDCCH provided in this application;

[0094] Figure 6 A schematic diagram of another PDCCH DMRS transmission provided in this application;

[0095] Figure 7 A schematic diagram of another PDCCH DMRS transmission provided in this application;

[0096] Figure 8 A flowchart illustrating another communication method provided in this application;

[0097] Figure 9 A schematic diagram of the structure of a communication device provided in this application;

[0098] Figure 10 A structural diagram of a communication device provided in this application. Detailed Implementation

[0099] This application provides a communication method and apparatus to reduce the power consumption of terminal devices. The method and apparatus described in this application are based on the same technical concept. Since the principles by which the method and apparatus solve the problem are similar, the implementations of the apparatus and method can be referred to each other, and repeated details will not be repeated.

[0100] In the description of this application, the terms "first," "second," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance or order.

[0101] In the description of this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0102] In the description of this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. " / " means "or", for example, a / b means a or b.

[0103] To more clearly describe the technical solutions of the embodiments of this application, the communication methods and devices provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0104] The technical solutions in this application embodiment can be applied to various communication systems, such as Universal Mobile Telecommunications System (UMTS), Wireless Local Area Network (WLAN), Wireless Fidelity (Wi-Fi) system, 4th generation (4G) mobile communication system (such as Long Term Evolution (LTE) system), 5th generation (5G) mobile communication system (such as New Radio (NR) system), and future communication networks, etc.

[0105] For example, Figure 1 A schematic diagram of the architecture of a possible communication system applicable to embodiments of this application is shown. For example... Figure 1 As shown, the communication system 10 may include a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 may also include the Internet 300.

[0106] RAN 100 includes at least one RAN node (such as...) Figure 1 110a and 110b (collectively referred to as 110) and at least one terminal device (such as Figure 1RAN 100, denoted as RAN 120a-120j, is collectively referred to as RAN 120. RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1 (Not shown in the image). Terminal device 120 is connected to RAN node 110 wirelessly. RAN node 110 is connected to core network 200 wirelessly or via wired connection. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0107] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented communication systems. RAN 100 can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0108] RAN node 110, sometimes referred to as RAN entity or access node, constitutes part of the communication system and assists terminal devices in achieving wireless access. Multiple RAN nodes 110 in communication system 10 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal device 120 are relative, for example... Figure 1 Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access RAN 100 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal device. RAN node 110 and terminal device 120 are sometimes referred to as communication devices, for example... Figure 1 Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal equipment functions.

[0109] RAN nodes can also be referred to in different ways, such as network devices. Unless otherwise specified in this application, network devices will be used as the term.

[0110] In one possible scenario, network equipment can also be called access network equipment. Access network equipment can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a base station in a future mobile communication system, or an access node in a WiFi system, etc. Access network equipment can also be a macro base station (such as...). Figure 1 110a), micro base stations or indoor stations (such as Figure 1 The access network device can be a relay node or donor node (as described in 110b), or a wireless controller in a CRAN scenario. Optionally, the access network device can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network device in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the access network device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The access network device in this application can also be a logical node, logical module, or software capable of implementing all or part of the access network device functions.

[0111] In another possible scenario, multiple access network devices collaborate to assist terminal devices in achieving wireless access, with each access network device performing a portion of the base station's functions. For example, the access network devices 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 DU can be configured separately or included in the same network element, such as a baseband unit (BBU). The RU can be included in radio frequency equipment or radio frequency units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0112] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0113] Terminal devices can also be called user equipment (UE), mobile stations, mobile terminals, etc. Terminal devices can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminal devices can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the device form of the terminal device.

[0114] In some scenarios, network devices can send downlink signals to terminal devices, and terminal devices can send uplink signals to network devices. Additionally, network devices can communicate with each other, and terminal devices can also communicate with each other.

[0115] Figure 2 A schematic diagram of an O-RAN system is shown. It should be understood that an O-RAN system may also include... Figure 2 Other components besides those shown are not limited in this application. Figure 2As shown, access network devices can communicate with the core network (CN) via a backhaul link and with terminal devices via an air interface. For example, access network devices may include a baseband unit (BBU) and a radio unit (RU). The BBU can communicate with the core network via the backhaul link, while the RU can communicate with the terminal devices via the air interface. The BBU can also communicate with the RU via a fronthaul link. The BBU and RU may be co-located or separate. A BBU may include at least one control unit (CU) and at least one distribution unit (DU), and the CU and DU can communicate via at least one midhaul link.

[0116] Figure 3 This diagram illustrates the network element functional partitioning and protocol layer structure of an O-RAN device. In some examples, the CU (Core Unit) is a logical node carrying the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU connects to network nodes such as the core network through interfaces, which can be interfaces such as E2 interfaces. Optionally, the CU may have some core network functions. The CU (e.g., the PDCP layer and higher layers) connects to the DU (e.g., the RLC layer and lower layers) through interfaces, which can be interfaces such as F1 interfaces. In some examples, these interfaces (e.g., the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, and in some examples, the signaling procedures of F1 are defined. The F1 interface supports both the control plane (F1-C) and the user plane (F1-U).

[0117] In some examples, the CU can be split into CU-CP and CU-UP. CU-CP is a logical node carrying the RRC layer and PDCP-C (control plane part of PDCP) layer, used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management (AMF) network element in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the SDAP layer and PDCP-U (user plane part of PDCP) layer, used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in terminal devices.

[0118] The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some functions of the radio link control (RLC) layer and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements, such as by latency. Functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0119] In some examples, a DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes a portion of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0120] In some examples, the RU is a logical node carrying both lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP) or remote radio head (RRH) or other similar entity. In some examples, the Lower PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0121] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through a lower-ahead split-control, user, and synchronization (LLS-CUS) interface. LLS-CUS may include LLS-C and LLS-U interfaces providing the control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via an LLS-M interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0122] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0123] The communication system described in this application is intended to more clearly illustrate the technical solutions of this application and does not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0124] Currently, research on power saving in terminal devices is becoming increasingly widespread, and detailed optimization schemes to reduce power consumption in terminal devices have become a research direction in the industry. This application provides a communication method that can flexibly reduce the power consumption of terminal devices.

[0125] In the following embodiments, the communication method provided in this application is described in detail using terminal devices and network devices as examples. It should be understood that the operations performed by the terminal device can also be implemented by a processor, chip, chip system, or functional module in the terminal device. The operations performed by the network device can also be implemented by a processor, chip, chip system, or functional module in the network device, and this application does not limit this.

[0126] Based on the above description, the communication method provided in this application embodiment can be found in [reference needed]. Figure 4 As shown. The process of this method may include:

[0127] Step 401: The terminal device receives the first signal. Correspondingly, the network device sends the first signal.

[0128] The first signal may include one or more of the following: demodulation reference signal (DMRS), channel state information reference signal (CSI-RS), synchronizing signal (SS), synchronizing signal block (SSB), tracking reference signal (TRS), positioning reference signal (PRS), sounding reference signal (SRS), random access preamble, sensing signal, on-off keying (OOK) sequence, pseudo-random sequence (such as ZC (Zadoff-Chu) sequence), orthogonal frequency-division multiplexing (OFDM) signal, OFDM derivative signal, orthogonal time-frequency space (OTFS) signal, or linear frequency modulation (LFM) signal, etc.

[0129] Optionally, the DMRS can be the DMRS of the physical downlink control channel (PDCCH), the DMRS of the physical downlink shared channel (PDSCH), or the DMRS of other channels. Other channels may include the physical uplink control channel (PUCCH), the physical uplink shared channel (PUSCH), the random access channel (RACH), channels for sensing, channels for artificial intelligence (AI), etc.

[0130] In some embodiments, a channel can also be understood as a signal, and a signal can also be understood as a channel.

[0131] Step 402: The terminal device determines whether to receive and / or transmit the first channel based on the first signal.

[0132] It is understandable that the terminal device determines whether to receive and / or transmit the first channel based on the first signal, which can be understood as one or more of the following situations:

[0133] The terminal device determines the receiving and / or transmitting channel based on the first signal;

[0134] Based on the first signal, the terminal device determines not to receive and / or not to transmit the first channel;

[0135] The terminal device receives and / or transmits a first channel based on the first signal;

[0136] The terminal device, based on the first signal, does not receive and / or transmit the first channel;

[0137] The terminal device receives and / or transmits a first channel based on the presence of a first signal;

[0138] The terminal device does not receive and / or transmit the first channel if the first signal is absent.

[0139] The terminal device, based on the presence of the first signal, does not receive and / or transmit the first channel;

[0140] The terminal device receives and / or transmits the first channel based on the absence of the first signal.

[0141] In some embodiments, when the terminal device determines to receive and / or transmit the first channel, step 403 can be performed: the terminal device receives and / or transmits the first channel. It should be understood that when the terminal device receives and / or transmits the first channel based on the first signal, step 403 can be performed directly, and step 402 may not be required. This application does not limit this.

[0142] The first signal can be used for demodulation of the first channel, or it can be used for modulation of the first channel.

[0143] The first channel can be a control channel or a data channel, etc.

[0144] For example, the first channel can be a PDCCH, and correspondingly, the first signal can be the DMRS of the PDCCH. As another example, the first channel can be a PDSCH, and the first signal can be the DMRS of the PDSCH. As another example, the first channel can be a PDCCH, and the first signal can be the DMRS of the PDSCH. As another example, the first channel can be a PDSCH, and the first signal can be the DMRS of the PDCCH.

[0145] For example, the first channel can be PUSCH, and correspondingly, the first signal can be the DMRS of PUSCH. For example, the first channel can be PUCCH, and correspondingly, the first signal can be the DMRS of PUCCH. For example, the first channel can be a RACH channel, and correspondingly, the first signal can be a random access signal.

[0146] In some embodiments, the first signal can be an uplink signal and the first channel can be a downlink channel. For example, the first signal is the DMRS of PUCCH and the first channel is PDSCH. Alternatively, the first signal can be a downlink signal and the first channel can be an uplink channel. For example, the first signal is the DMRS of PDCCH and the first channel is PUSCH.

[0147] It should be understood that the first channel and the first signal here are merely examples and are not intended to limit this application.

[0148] In some embodiments, receiving a first channel can also be described as one or more of the following: demodulating a first channel, decoding a first channel, detecting a first channel, deinterleaving a first channel, blindly detecting a first channel, blindly detecting a first channel at the control channel element (CCE) granularity, or other descriptions.

[0149] In some embodiments, transmitting a first channel may also be described as one or more of the following: modulating a first channel, encoding a first channel, interleaving a first channel, or other descriptions.

[0150] In one alternative implementation, the terminal device determines whether to receive and / or transmit the first channel based on the first signal. The method may be: the terminal device determines whether to receive and / or transmit the first channel based on the resources of the first signal.

[0151] The resources of the first signal can also be understood as the information of the first signal, the parameters of the first signal, the state of the first signal, etc. This application only uses the resources of the first signal as an example for illustration and is not intended to limit this application.

[0152] In one possible approach, the terminal device determines whether to receive and / or transmit the first channel based on the resources of the first signal. The method may be: when the resources of the first signal are first resources, the terminal device determines to receive and / or transmit the first channel; when the resources of the first signal are second resources, the terminal device determines not to receive and / or not to transmit the first channel.

[0153] The terminal device determines to receive and / or transmit the first channel based on the resources of the first signal. This can also be understood as: when the resources of the first signal are available (i.e., the first resource is available), the terminal device determines to receive and / or transmit the first channel. Alternatively, when the terminal device detects that the first signal exists in the first resource, the terminal device determines to receive and / or transmit the first channel.

[0154] The terminal device determines not to receive and / or not to transmit the first channel based on the resources of the first signal. This can also be understood as: when the resources of the first signal are second resources, the terminal device determines not to receive and / or not to transmit the first channel. Alternatively, when the terminal device detects that the first signal exists in the second resource, the terminal device determines not to receive and / or not to transmit the first channel.

[0155] In another possible approach, the terminal device determines whether to receive and / or transmit the first channel based on the resources of the first signal. The method may be: when the resources of the first signal are first resources, the terminal device receives and / or transmits the first channel; when the resources of the first signal are second resources, the terminal device does not receive and / or does not transmit the first channel.

[0156] The terminal device determines to receive and / or transmit the first channel based on the resources of the first signal. This can also be understood as: when the resources of the first signal are available (i.e., the first resource is available), the terminal device receives and / or transmits the first channel. Alternatively, when the terminal device detects that the first signal exists in the first resource, the terminal device receives and / or transmits the first channel.

[0157] The terminal device determines not to receive and / or not to transmit the first channel based on the resources of the first signal. This can also be understood as: when the resources of the first signal are second resources, the terminal device does not receive and / or does not transmit the first channel. Alternatively, when the terminal device detects that the first signal exists in the second resource, the terminal device does not receive and / or does not transmit the first channel.

[0158] Accordingly, when the first signal is located at the first resource, the network device may receive and / or transmit the first channel; when the first signal is located at the second resource, the network device may not receive and / or transmit the first channel.

[0159] For example, when a terminal device determines whether to receive and / or transmit a first channel based on the parameters of a first signal, it may do so in the following ways: when the parameter of the first signal is a first value, the terminal device determines to receive and / or transmit the first channel; when the parameter of the first signal is a second value, the terminal device determines not to receive and / or transmit the first channel. Alternatively, when the parameter of the first signal is a first value, the terminal device receives and / or transmits the first channel; when the parameter of the first signal is a second value, the terminal device does not receive and / or transmit the first channel. Alternatively, when the parameter of the first signal is a first parameter, the terminal device determines to receive and / or transmit the first channel; when the parameter of the first signal is a second parameter, the terminal device determines not to receive and / or transmit the first channel. Alternatively, when the parameter of the first signal is a first parameter, the terminal device receives and / or transmits the first channel; when the parameter of the first signal is a second parameter, the terminal device does not receive and / or transmit the first channel.

[0160] Accordingly, when the parameter of the first signal is a first value, the network device receives and / or transmits the first channel; when the parameter of the first signal is a second value, the network device does not receive and / or does not transmit the first channel. Alternatively, when the parameter of the first signal is a first parameter, the network device receives and / or transmits the first channel; when the parameter of the first signal is a second parameter, the network device does not receive and / or does not transmit the first channel.

[0161] It should be understood that the terminal device determines whether to receive based on the state of the first signal and / or the first channel, which will not be listed here.

[0162] By determining whether to receive and / or transmit the first channel based on the resources of the first signal, the decision can be made flexibly and accurately based on different resources of the first signal, without introducing additional signaling, thus saving signaling overhead. For example, when the first channel is PDCCH and the first signal is the DMRS of PDCCH, the terminal device can receive PDCCH when the DMRS is located in the first resource, and can choose not to receive PDCCH when the DMRS is located in the second resource. This saves power consumption when the DMRS is located in the second resource, thereby reducing the power consumption of the terminal device.

[0163] In some embodiments, the resources of the first signal may include one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources.

[0164] In one example, the first resource can be a first subcarrier group, and the second resource can be a second subcarrier group.

[0165] It is understandable that the first subcarrier group can also be understood as the first frequency domain position information, which can be understood as the first value of the first parameter or the parameter of the first signal; the second subcarrier group can also be understood as the second frequency domain position information, which can be understood as the second value of the second parameter or the parameter of the first signal.

[0166] Optionally, the first subcarrier group may include one or more subcarriers determined according to a first offset value in one or more resource blocks (RBs); the second subcarrier group may include one or more subcarriers determined according to a second offset value in the RB.

[0167] The first offset value and the second offset value can be different. The first offset value and the second offset value can be used to determine the starting position of one or more subcarriers that are equally spaced within an RB.

[0168] For example, the first offset value can be 2 subcarriers, and the second offset value can be 3 subcarriers. Assuming an RB includes 12 subcarriers from low to high frequency, subcarriers 0-11, the first subcarrier group can include subcarrier 0, subcarrier 3, and subcarrier 6, and the second subcarrier group can include subcarrier 1, subcarrier 5, and subcarrier 9. It should be understood that the above examples are merely illustrations, and the first offset value, second offset value, and the first and second subcarrier groups can have other possible configurations, which are not limited in this application.

[0169] Optionally, the first subcarrier group may include the first, fifth, and ninth subcarriers within each of one or more RBs; the second subcarrier group may include the second, sixth, and tenth subcarriers within the same RB.

[0170] Among them, the first, second, fifth, sixth, ninth, and tenth subcarriers are arranged in ascending order of frequency within this RB.

[0171] For example, let's take DMRS with PDCCH as the first channel and PDCCH as the first signal as an example. Figure 5 As shown, subcarriers 0, 4, and 8 are the first, fifth, and ninth subcarriers within the RB, respectively; that is, subcarriers 0, 4, and 8 belong to the first subcarrier group. Subcarriers 1, 5, and 9 are the second, sixth, and tenth subcarriers within the same RB, respectively; subcarriers 1, 5, and 9 belong to the second subcarrier group. Therefore, as... Figure 5As shown, when the DMRS is located on subcarriers 0, 4, and 8 within an RB, it can be understood that the PDCCH carries scheduling information, and the terminal device needs to decode the PDCCH and subsequently receive the data scheduled by that PDCCH. When the DMRS is located on subcarriers 1, 5, and 9 within the same RB, it can be understood that the PDCCH does not carry scheduling information, or that the PDCCH does not exist, and the terminal device does not need to decode the PDCCH or receive it. Based on the above, Figure 5 The terminal device only needs to decode the first PDCCH, and does not need to decode the following three PDCCHs, thereby reducing the power consumption of the terminal device.

[0172] It should be noted that the example of the first subcarrier group including the first, fifth, and ninth subcarriers within each of one or more RBs, and the second subcarrier group including the second, sixth, and tenth subcarriers within that RB, is merely illustrative. It should be understood that the first subcarrier group may also include the second, sixth, and tenth subcarriers within each of one or more RBs, and the second subcarrier group may include the first, fifth, and ninth subcarriers within each of one or more RBs, still using the same approach. Figure 5 For example, when the DMRS is located on subcarriers 0, 4, and 8 within an RB, it can be understood that the PDCCH does not carry scheduling information, or that the PDCCH does not exist. The terminal device does not need to decode the PDCCH or receive it. It then receives the data scheduled by the PDCCH. When the DMRS is located on subcarriers 1, 5, and 9 within the same RB, it can be understood that the PDCCH carries scheduling information. The terminal device needs to decode the PDCCH and then receive the data scheduled by the PDCCH. This application does not impose any limitations on this.

[0173] It is understandable that, besides the two cases mentioned above, there can be many other cases. For example, the first subcarrier group may include the third, seventh, and eleventh subcarriers within each of one or more RBs; the second subcarrier group may include the second, sixth, and tenth subcarriers within that RB. As another example, the first subcarrier group may include the second, sixth, and tenth subcarriers within that RB; the second subcarrier group may include the third, seventh, and eleventh subcarriers within that RB. Of course, there can be many more possible examples of the first and second subcarrier groups, which will not be listed here.

[0174] It should be understood that the above-mentioned subcarrier group is only an example of including three subcarriers. In practice, a subcarrier group may also include more or fewer subcarriers than three, and this application does not limit this.

[0175] In another example, the first resource can be the first code, and the second resource can be the second code.

[0176] The first and second codes can be orthogonal codes or non-orthogonal codes.

[0177] For example, nonorthogonal codes can be non-orthogonal multiple access (NoMA) codes, sparse code multiple access (SCMA) codes, pattern division multiple access (PDMA) codes, multiple user shared access (MUSA) codes, interleave division multiple access (IDMA) codes, etc.

[0178] For example, the first resource can be a first orthogonal covering code, and the second resource can be a second orthogonal covering code.

[0179] The first orthogonal covering code can also be described as the first orthogonal code or other descriptions, and the second orthogonal covering code can also be described as the second orthogonal code or other descriptions.

[0180] The first orthogonal covering code can also be understood as the first value of the first parameter or the parameter of the first signal; the second orthogonal covering code can also be understood as the second value of the second parameter or the parameter of the first signal.

[0181] Alternatively, the first orthogonal covering code can also be understood as the first code domain information, which can be understood as the first value of the first parameter or the parameter of the first signal; the second orthogonal covering code can also be understood as the second code domain information, which can be understood as the second value of the second parameter or the parameter of the first signal.

[0182] For example, let's take DMRS with PDCCH as the first channel and PDCCH as the first signal as an example. Figure 6As shown, assuming the first orthogonal coverage code is orthogonal coverage code + and the second orthogonal coverage code is orthogonal coverage code -, when the code field where DMRS is located is orthogonal coverage code +, it can be understood that the PDCCH carries scheduling information, and the terminal device needs to decode the PDCCH and subsequently receive the data scheduled by that PDCCH. When the code field where DMRS is located is orthogonal coverage code -, it can be understood that the PDCCH does not carry scheduling information, or that the PDCCH does not exist, and the terminal device does not need to decode the PDCCH or receive that PDCCH. Based on the above, Figure 6 The terminal device decodes the first and fourth PDCCHs shown in the diagram, while the middle two PDCCHs do not need to be decoded, thereby reducing the power consumption of the terminal device.

[0183] It should be noted that the first orthogonal coverage code can also be orthogonal coverage code-, and the second orthogonal coverage code can be orthogonal coverage code+. That is, when the code field where DMRS is located is orthogonal coverage code-, it can be understood that PDCCH carries scheduling information, and the terminal device needs to decode PDCCH and subsequently receive the data scheduled by that PDCCH. When the code field where DMRS is located is orthogonal coverage code+, it can be understood that PDCCH does not carry scheduling information, or it can be understood that PDCCH does not exist, and the terminal device does not need to decode PDCCH or receive that PDCCH.

[0184] It should be understood that the orthogonal covering code + and orthogonal covering code - are merely illustrative examples, and other descriptions are possible, such as orthogonal covering code 1 and orthogonal covering code 2, etc., which are not limited in this application.

[0185] For example, the first resource can be precoded for the first space, and the second resource can be precoded for the second space.

[0186] Optionally, spatial precoding can be determined based on the first signal, and the first signal can be transmitted based on the spatial precoding.

[0187] The first spatial precoding can also be understood as the first value of the first parameter or the parameter of the first signal; the second spatial precoding can also be understood as the second value of the second parameter or the parameter of the first signal.

[0188] Alternatively, the first spatial precoding can also be understood as the first spatial information, which can be understood as the first value of the first parameter or the parameter of the first signal; the second spatial precoding can also be understood as the second spatial information, which can be understood as the second value of the second parameter or the parameter of the first signal.

[0189] In another example, the first resource can be the first antenna, and the second resource can be the second antenna.

[0190] In another example, the first resource can be the first antenna port, and the second resource can be the second antenna port.

[0191] The first antenna port can also be understood as the first antenna port information, which can be understood as the first value of the first parameter or the parameter of the first signal; the second antenna port can also be understood as the second antenna port information, which can be understood as the second value of the second parameter or the parameter of the first signal.

[0192] For example, let's take DMRS with PDCCH as the first channel and PDCCH as the first signal as an example. Figure 7 As shown, assuming the first antenna port is port 1 and the second antenna port is port 0, when DMRS is located at port 1 (which can also be understood as DMRS being transmitted through port 1), it can be understood that the PDCCH carries scheduling information, and the terminal device needs to decode the PDCCH and subsequently receive the data scheduled by that PDCCH. When DMRS is located at port 0 (which can also be understood as DMRS being transmitted through port 0), it can be understood that the PDCCH does not carry scheduling information, or that the PDCCH does not exist. The terminal device does not need to transmit information to the baseband, does not need to decode the PDCCH, and does not need to receive the PDCCH. Based on the above, Figure 7 The PDCCH shown in the figure allows the terminal device to decode the first PDCCH, but not the third PDCCH, thereby reducing the power consumption of the terminal device.

[0193] In one alternative implementation, the terminal device can determine the DMRS transmission port by performing energy detection on ports 0 and 1. For example, when the energy at port 0 meets a first threshold, the terminal device can determine that the DMRS is being transmitted at port 0. This can be interpreted as the PDCCH not carrying scheduling information, thus eliminating the need to transmit information to the baseband. This also saves on serial port transmission and baseband power consumption, thereby reducing the power consumption of the terminal device. When the energy at port 1 meets the first threshold, the terminal device can determine that the DMRS is being transmitted at port 1. This can be interpreted as the PDCCH carrying scheduling information, requiring information transmission to the baseband. The terminal device then needs to decode the PDCCH and subsequently receive the data scheduled by that PDCCH.

[0194] When DMRS is located on port 0 (which can also be understood as DMRS being transmitted through port 0), the PDCCH carries scheduling information, and the terminal device needs to decode the PDCCH and subsequently receive the data scheduled by that PDCCH. When DMRS is located on port 1 (which can also be understood as DMRS being transmitted through port 1), the PDCCH does not carry scheduling information, or the PDCCH does not exist. The terminal device does not need to transmit information to the baseband, does not need to decode the PDCCH, and does not need to receive the PDCCH.

[0195] It should be understood that port 0 and port 1 are merely illustrative examples, and other descriptions are possible, which are not limited in this application.

[0196] In addition to the resources or parameters of the first signal described above, the resources or parameters of the first signal may also include one or more of the following: detection cycle, number of CCEs, or aggregation level (AL).

[0197] For example, the first resource can be the first detection cycle, and the second resource can be the second detection cycle. Another example is that the first resource can be the first number of CCEs, and the second resource can be the second number of CCEs. Yet another example is that the first resource can be the first AL, and the second resource can be the second AL.

[0198] In some embodiments, the resources of the first signal or the parameters of the first signal (or may also be understood as the parameters associated with the first signal) may include one or more of the following: the sequence of the DMRS of the PDCCH, the sequence type, the sequence initialization method, the sequence initialization value, the sequence initialization formula, the scrambling identifier (ID) associated with the sequence initialization formula, the scrambling sequence, the scrambling sequence ID, the resource mapping, the resource mapping method, the associated beam, the associated transmission configuration indicator (TCI), the associated large-scale parameters, the associated CORESET, etc.

[0199] Optionally, the resources or parameters of the first signal can be predefined, preconfigured, or signaled.

[0200] Based on the above communication method, the terminal device can determine whether to receive and / or transmit the first channel based on the first signal. In some cases, it can choose not to receive and / or transmit the first channel, thereby reducing the power consumption of the terminal device.

[0201] Based on the above description, another communication method provided in the embodiments of this application can be found in [reference needed]. Figure 8 As shown. The process of this method may include:

[0202] Step 801: The terminal device detects the first signal.

[0203] The description of the first signal can be found in the foregoing. Figure 7 The description of the first signal in the illustrated embodiment will not be elaborated here.

[0204] In one alternative implementation, the terminal device may detect the first signal at the first resource.

[0205] For example, the first resource may include one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources. Alternatively, it may include one or more of the following: detection period, number of CCEs, or aggregation level (AL), etc. Alternatively, it may include one or more of the following: the sequence of the DMRS of the PDCCH, sequence type, sequence initialization method, sequence initialization value, sequence initialization formula, scrambling identifier (ID) associated with the sequence initialization formula, scrambling sequence, scrambling sequence ID, resource mapping, resource mapping method, associated beam, associated transmission configuration indicator (TCI), associated large-scale parameters, associated control resource set (CORESET), etc.

[0206] The first resource can also be described as the first parameter, etc. For a description of the first resource, please refer to the foregoing. Figure 7 The description of the first resource in the illustrated embodiment will not be elaborated here.

[0207] Step 802: When the first signal is detected, the terminal device receives and / or transmits the first channel.

[0208] When the first signal is detected, the terminal device receives and / or transmits the first channel. This can also be understood as: when the first signal is present, the terminal device receives and / or transmits the first channel.

[0209] Accordingly, the network device sends a first signal and receives and / or sends a first channel, wherein the first signal sent by the network device is located on a first resource, or can be understood as the network device sending the first signal based on the first resource.

[0210] For example, the relevant description of the first channel can be found in the foregoing. Figure 7 The description of the first channel in the illustrated embodiment will not be elaborated here.

[0211] Step 803: When the first signal is not detected, the terminal device does not receive and / or transmit the first channel.

[0212] When the first signal is not detected, the terminal device does not receive and / or does not send the first channel. This can also be understood as: when the first signal is not present, the terminal device does not receive and / or does not send the first channel.

[0213] Accordingly, the network device does not send the first signal, nor does it receive and / or send the first channel.

[0214] It should be understood that the order of steps 802 and 803 is not limited in this application, and either step 802 or step 803 may be present.

[0215] Based on the above communication method, the terminal device can determine whether to receive and / or send the first channel based on whether the first signal is detected. In this way, the terminal device can choose not to receive and / or send the first channel in some cases, thereby reducing the power consumption of the terminal device.

[0216] Based on the above embodiments, this application also provides a communication device, see below. Figure 9 As shown, the communication device 900 may include a transceiver unit 901 and a processing unit 902. The transceiver unit 901 is used for communication by the communication device 900, such as receiving or sending information (messages or data). The processing unit 902 is used for controlling and managing the operations of the communication device 900. The processing unit 902 can also control the steps performed by the transceiver unit 901.

[0217] For example, the communication device 900 may specifically be a terminal device, a processor of the terminal device, a chip, a chip system, or a functional module, as described in the above embodiments. Alternatively, the communication device 900 may specifically be a network device, a processor of the network device, a chip, a chip system, or a functional module, as described in the above embodiments.

[0218] In one embodiment, the communication device 900 is used to implement the above. Figure 4 In the embodiment shown, when the terminal device functions as follows, the transceiver unit 901 is used to receive a first signal; the processing unit 902 is used to determine whether to receive and / or transmit a first channel based on the first signal.

[0219] In an optional implementation, when the processing unit 902 determines whether to receive and / or transmit the first channel based on the first signal, it may be used to: determine whether to receive and / or transmit the first channel based on the resources of the first signal.

[0220] Optionally, the resources of the first signal include one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources.

[0221] In some embodiments, when the processing unit 902 determines whether to receive and / or transmit the first channel based on the resources of the first signal, it may be configured to: determine to receive and / or transmit the first channel when the resources of the first signal are first resources; and determine not to receive and / or not to transmit the first channel when the resources of the first signal are second resources.

[0222] In one example, the first resource is a first subcarrier group, and the second resource is a second subcarrier group.

[0223] Optionally, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs); the second subcarrier group includes the second, sixth, and tenth subcarriers within the RBs.

[0224] In another example, the first resource is a first orthogonal overlay code, and the second resource is a second orthogonal overlay code.

[0225] In another example, the first resource is a first antenna port, and the second resource is a second antenna port.

[0226] In some possible configurations, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH.

[0227] In some embodiments, the first signal is used for demodulation of the first channel.

[0228] In some possible implementations, the first signal includes one or more of the following: demodulation reference signal DMRS, channel state information reference signal CSI-RS, synchronization signal, synchronization signal block SSB, tracking reference signal TRS, positioning reference signal PRS, detection reference signal SRS, or sensing signal.

[0229] In another embodiment, the communication device 900 is used to implement the above. Figure 4 In the illustrated embodiment, the transceiver unit 901 is used to transmit a first signal; and, when the first signal is located on a first resource, to receive and / or transmit a first channel; and when the first signal is located on a second resource, to neither receive nor transmit the first channel. The processing unit 902 is used to control the operation of the transceiver unit 901.

[0230] Optionally, either the first resource or the second resource includes one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources.

[0231] In one example, the first resource is a first subcarrier group, and the second resource is a second subcarrier group.

[0232] Optionally, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs); the second subcarrier group includes the second, sixth, and tenth subcarriers within the RBs.

[0233] In another example, the first resource is a first orthogonal overlay code, and the second resource is a second orthogonal overlay code.

[0234] In another example, the first resource is a first antenna port, and the second resource is a second antenna port.

[0235] In some embodiments, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH.

[0236] In some embodiments, the first signal is used for demodulation of the first channel.

[0237] For example, the first signal includes one or more of the following: demodulation reference signal DMRS, channel state information reference signal CSI-RS, synchronization signal, synchronization signal block SSB, tracking reference signal TRS, positioning reference signal PRS, detection reference signal SRS, or sensing signal.

[0238] In another embodiment, the communication device 900 is used to implement the above. Figure 8 In the terminal device function shown in the embodiment, the processing unit 902 is used to detect a first signal; the transceiver unit 901 is used to: receive and / or transmit a first channel when the processing unit 902 detects the first signal; and not receive and / or not transmit the first channel when the processing unit 902 does not detect the first signal.

[0239] In one alternative implementation, when detecting the first signal, the processing unit 902 may be used to: detect the first signal in a first resource.

[0240] Optionally, the first resource includes one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources.

[0241] In one example, the first resource is a first subcarrier group.

[0242] Optionally, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs).

[0243] In another example, the first resource is a first orthogonal overlay code.

[0244] In another example, the first resource is the first antenna port.

[0245] In some embodiments, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH.

[0246] For example, the first signal is used for demodulation of the first channel.

[0247] In some possible implementations, the first signal includes one or more of the following: demodulation reference signal DMRS, channel state information reference signal CSI-RS, synchronization signal, synchronization signal block SSB, tracking reference signal TRS, positioning reference signal PRS, detection reference signal SRS, or sensing signal.

[0248] In another embodiment, the communication device 900 is used to implement the above. Figure 8 In the illustrated embodiment, the transceiver unit 901 is used to transmit a first signal located on a first resource; and to receive and / or transmit a first channel. The processing unit 902 can be used to control the operation of the transceiver unit 901.

[0249] Optionally, the first resource includes one or more of the following: frequency domain resources, time domain resources, code domain resources, or spatial domain resources.

[0250] In one example, the first resource is a first subcarrier group.

[0251] Optionally, the first subcarrier group includes the first, fifth, and ninth subcarriers within each of one or more resource blocks (RBs).

[0252] In another example, the first resource is a first orthogonal overlay code.

[0253] In another example, the first resource is the first antenna port.

[0254] In one alternative implementation, the first channel is the Physical Downlink Control Channel (PDCCH), and the first signal is the demodulation reference signal (DMRS) of the PDCCH.

[0255] In some embodiments, the first signal is used for demodulation of the first channel.

[0256] For example, the first signal includes one or more of the following: demodulation reference signal DMRS, channel state information reference signal CSI-RS, synchronization signal, synchronization signal block SSB, tracking reference signal TRS, positioning reference signal PRS, detection reference signal SRS, or sensing signal.

[0257] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The functional units in the embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0258] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0259] Based on the above embodiments, this application also provides a communication device, see below. Figure 10 As shown, the communication device 1000 may include one or more processors 1002. Optionally, the communication device 1000 may also include one or more transceivers 1001. Optionally, the communication device 1000 may also include at least one memory 1003. The memory 1003 may be located inside the communication device 1000 or outside the communication device 1000. The processor 1002 can control the transceiver 1001 to receive and send information, messages, or data.

[0260] Specifically, the processor 1002 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. The processor 1002 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

[0261] The transceiver 1001, processor 1002, and memory 1003 are interconnected. Optionally, the transceiver 1001, processor 1002, and memory 1003 are interconnected via a bus 1004; the bus 1004 can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 10 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0262] In one optional embodiment, the memory 1003 is used to store programs, etc. Specifically, the program may include program code, which includes computer operation instructions. The memory 1003 may include RAM, and may also include non-volatile memory, such as one or more disk storage devices. The processor 1002 executes the application program stored in the memory 1003 to implement the above-mentioned functions, thereby realizing the functions of the communication device 1000.

[0263] For example, the communication device 1000 can specifically implement the functions of the network device or terminal device in the above embodiments.

[0264] In one embodiment, the communication device 1000 performs the aforementioned Figure 4In the method embodiment shown, when the terminal device functions, the transceiver 1001 can implement the aforementioned... Figure 4 The transmit and receive operations performed by the terminal device in the method embodiment shown; the processor 1002 can implement the aforementioned Figure 4 The method embodiment shown includes operations performed by the terminal device other than sending and receiving operations. For a detailed description, please refer to the above. Figure 4 The relevant descriptions in the method embodiments shown will not be detailed here.

[0265] In another embodiment, the communication device 1000 implements the aforementioned Figure 4 When the terminal device functions as described in the method embodiment, the processor 1002 can implement the aforementioned... Figure 4 The method embodiment shown illustrates operations performed by a terminal device. For detailed descriptions, please refer to the above. Figure 4 The relevant descriptions in the method embodiments shown will not be detailed here.

[0266] In another embodiment, the communication device 1000 implements the aforementioned Figure 4 When the network device functions as described in the method embodiment, the transceiver 1001 can implement the aforementioned... Figure 4 The transmit and receive operations performed by the network device in the method embodiment shown; the processor 1002 can implement the aforementioned Figure 4 The method embodiment shown refers to operations performed by the network device other than sending and receiving operations. For a detailed description, please refer to the above. Figure 4 The relevant descriptions in the method embodiments shown will not be detailed here.

[0267] In another embodiment, the communication device 1000 implements the aforementioned Figure 4 When the network device functions as described in the method embodiment, the processor 1002 can implement the aforementioned... Figure 4 The method embodiment shown depicts operations performed by a network device. For a detailed description, please refer to the above. Figure 4 The relevant descriptions in the method embodiments shown will not be detailed here.

[0268] In another embodiment, the communication device 1000 implements the aforementioned Figure 8 In the method embodiment shown, when the terminal device functions, the transceiver 1001 can implement the aforementioned... Figure 8 The transmit and receive operations performed by the terminal device in the method embodiment shown; the processor 1002 can implement the aforementioned Figure 8 The method embodiment shown includes operations performed by the terminal device other than sending and receiving operations. For a detailed description, please refer to the above. Figure 8The relevant descriptions in the method embodiments shown will not be detailed here.

[0269] In another embodiment, the communication device 1000 implements the aforementioned Figure 8 When the terminal device functions as described in the method embodiment, the processor 1002 can implement the aforementioned... Figure 8 The method embodiment shown illustrates operations performed by a terminal device. For detailed descriptions, please refer to the above. Figure 8 The relevant descriptions in the method embodiments shown will not be detailed here.

[0270] In another embodiment, the communication device 1000 implements the aforementioned Figure 8 When the network device functions as described in the method embodiment, the transceiver 1001 can implement the aforementioned... Figure 8 The transmit and receive operations performed by the network device in the method embodiment shown; the processor 1002 can implement the aforementioned Figure 8 The method embodiment shown refers to operations performed by the network device other than sending and receiving operations. For a detailed description, please refer to the above. Figure 8 The relevant descriptions in the method embodiments shown will not be detailed here.

[0271] In another embodiment, the communication device 1000 implements the aforementioned Figure 8 When the network device functions as described in the method embodiment, the processor 1002 can implement the aforementioned... Figure 8 The method embodiment shown depicts operations performed by a network device. For a detailed description, please refer to the above. Figure 8 The relevant descriptions in the method embodiments shown will not be detailed here.

[0272] Based on the above embodiments, this application provides a communication system, which may include the network devices and terminal devices involved in the above embodiments.

[0273] This application also provides a computer-readable storage medium for storing computer programs or instructions. When the computer programs or instructions are executed by a computer, the computer can implement the communication methods provided in the above-described method embodiments.

[0274] This application also provides a computer program product for storing computer programs or instructions. When the computer program or instructions are executed by a computer, the computer can implement the communication method provided in the above method embodiments.

[0275] This application also provides a chip or chip system, including logic circuitry, which is used to execute the communication method provided in the above-described method embodiments.

[0276] This application also provides a chip or chip system, including one or more processors, wherein the one or more processors are coupled to at least one memory, for calling a program in the memory to enable the chip or chip system to implement the communication method provided in the above method embodiments.

[0277] This application also provides a chip or chip system coupled to at least one memory, which is used to implement the communication method provided in the above method embodiments.

[0278] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0279] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0280] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0281] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0282] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method characterized by comprising: Comprising: receiving a first signal; determining whether to receive and / or transmit a first channel based on the first signal.

2. The method of claim 1, wherein, The first channel is a physical downlink control channel (PDCCH), and the first signal is a demodulation reference signal (DMRS) of the PDCCH.

3. The method of claim 1 or 2, wherein, The first signal is used for demodulation of the first channel.

4. The method according to any one of claims 1 to 3, characterized in that, Determining whether to receive and / or transmit the first channel based on the first signal comprises: Determining whether to receive and / or transmit the first channel based on a resource of the first signal.

5. The method of claim 4, wherein, The resource of the first signal comprises one or more of a frequency domain resource, a time domain resource, a code domain resource, or a spatial domain resource.

6. The method of claim 4 or 5, wherein, Determining whether to receive and / or transmit the first channel based on the resource of the first signal comprises: When the resource of the first signal is a first resource, receiving and / or transmitting the first channel; When the resource of the first signal is a second resource, not receiving and / or not transmitting the first channel.

7. The method of claim 6, wherein, The first resource is a first subcarrier group, and the second resource is a second subcarrier group.

8. The method of claim 7, wherein, The first subcarrier group comprises a first subcarrier, a fifth subcarrier, and a ninth subcarrier within each of one or more resource blocks (RBs), and the second subcarrier group comprises a second subcarrier, a sixth subcarrier, and a tenth subcarrier within the RBs.

9. The method of claim 6, wherein, The first resource is a first orthogonal cover code, and the second resource is a second orthogonal cover code.

10. The method of claim 6, wherein, The first resource is a first antenna port, and the second resource is a second antenna port.

11. The method of any one of claims 1-10, wherein, The first signal comprises one or more of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a synchronization signal, a synchronization signal block (SSB), a tracking reference signal (TRS), a positioning reference signal (PRS), a sounding reference signal (SRS), or a sensing signal.

12. A communication method, comprising: Comprising: transmitting a first signal; When the first signal is located at a first resource, receiving and / or transmitting a first channel; When the first signal is located at a second resource, not receiving and / or not transmitting the first channel.

13. The method of claim 12, wherein, The first channel is a physical downlink control channel (PDCCH), and the first signal is a demodulation reference signal (DMRS) of the PDCCH.

14. The method of claim 12 or 13, wherein, The first signal is used for demodulation of the first channel.

15. The method according to any one of claims 12 to 14, wherein, Either of the first resource and the second resource comprises one or more of a frequency domain resource, a time domain resource, a code domain resource, or a spatial domain resource.

16. The method according to any one of claims 12 to 15, wherein, The first resource is a first subcarrier group, and the second resource is a second subcarrier group.

17. The method of claim 16, wherein, The first subcarrier group comprises a first subcarrier, a fifth subcarrier, and a ninth subcarrier within each of one or more resource blocks (RBs), and the second subcarrier group comprises a second subcarrier, a sixth subcarrier, and a tenth subcarrier within the RBs.

18. The method of any one of claims 12-15, wherein, The first resource is a first orthogonal cover code, and the second resource is a second orthogonal cover code.

19. The method of any one of claims 12-15, wherein, The first resource is a first antenna port, and the second resource is a second antenna port.

20. The method of any one of claims 12-19, wherein, The first signal comprises one or more of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a synchronization signal, a synchronization signal block (SSB), a tracking reference signal (TRS), a positioning reference signal (PRS), a sounding reference signal (SRS), or a sensing signal.

21. A communications device, characterized by comprising means or modules for performing the method of any one of claims 1-11, or comprising means or modules for performing the method of any one of claims 12-20.

22. A communications device, characterized by comprising a processor for executing computer programs or instructions to implement the method of any one of claims 1-11, or to implement the method of any one of claims 12-20.

23. A computer-readable storage medium, characterized in that, The computer readable storage medium has stored therein computer programs or instructions which, when executed by a communication device, implement the method of any one of claims 1-11, or implement the method of any one of claims 12-20.

24. A computer program product, characterised in that, The computer program product comprises computer programs or instructions which, when executed by a computer, cause the method of any one of claims 1-11 to be implemented, or the method of any one of claims 12-20 to be implemented.

25. A chip or chip system, characterized by The chip or chip system comprises a processor for executing the method of any one of claims 1-11, or for executing the method of any one of claims 12-20.

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