Communication method and apparatus

Abstract

A communication method and apparatus. A terminal determines a first transmission parameter, and the terminal supports the first transmission parameter and a second transmission parameter, wherein the first transmission parameter includes one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, and a first link indicator; the second transmission parameter includes one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, and a second link indicator; and at least one of the first transmission parameters is different from at least one of the second transmission parameters. The terminal sends a first uplink signal on the basis of the first transmission parameter. The terminal supports multiple sets of transmission parameters, so that during signal transmission, corresponding transmission parameters can be selected from among the multiple sets of transmission parameters, and the selected transmission parameters can meet corresponding signal requirements. Moreover, by configuring multiple sets of transmission parameters, the signal transmission process of a terminal apparatus is more flexible.

Description

A communication method and apparatus

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410662316.0, filed on May 25, 2024, entitled "A Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0004] When performing uplink transmission, fifth-generation (5G) user equipment (UE) typically transmits signals through its internal transmitter. Different signals may have different requirements for transmission parameters, but the UE's transmitter processes different signals in the same way, which cannot meet the needs of different signals. Summary of the Invention

[0005] This application provides a communication method and apparatus for meeting the needs of different signals by using different transmission parameters.

[0006] Firstly, a first communication method is provided, which can be applied to a terminal-side device, also referred to as a terminal device. The terminal device is, for example, a terminal equipment, or other equipment including terminal equipment functions, or a circuit, or a system-on-a-chip (or, a chip, such as a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip) or other functional module, which is capable of implementing the functions of the terminal equipment, and is, for example, disposed within the terminal equipment. The method includes: determining first transmission parameters, wherein the terminal supports the first transmission parameters and second transmission parameters, wherein the first transmission parameters include one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator, and the second transmission parameters include one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator, wherein at least one of the first transmission parameters differs from at least one of the second transmission parameters; and transmitting a first uplink signal according to the first transmission parameters.

[0007] In this embodiment, the terminal device can support multiple sets of transmission parameters, such as a first transmission parameter and a second transmission parameter. This allows the device to select the appropriate transmission parameter from these multiple sets when transmitting a signal, ensuring that the selected parameter meets the requirements of the corresponding signal. Furthermore, the use of multiple transmission parameters makes the transmission process of the terminal device more flexible.

[0008] In one optional implementation, the first maximum transmit power is the maximum transmit power corresponding to a first power category, which is less than the maximum transmit power corresponding to a second power category. The first power category corresponds to the first transmit parameter, and the second power category corresponds to the second transmit parameter. The maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm. The first power category is, for example, the power category defined in the embodiments of this application. By defining a new power category to achieve the first maximum transmit power, the terminal device does not need to perform additional calculations, thus simplifying the implementation of the terminal device.

[0009] In one alternative implementation, the first maximum transmit power is 0 dBm, 10 dBm, or 15 dBm. Alternatively, the first maximum transmit power may be any other value less than the maximum transmit power corresponding to the second power category; there is no limitation on this.

[0010] In one alternative implementation, the first maximum transmit power is determined based on a first value and the maximum transmit power corresponding to a second power category, wherein the maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm. In this approach, it is not necessary to define a new power category; instead, the first maximum transmit power can be determined based on an existing power category (e.g., the first power category), which facilitates compatibility with existing technologies.

[0011] In one optional implementation, the first transmitted waveform is a single-carrier frequency-domain equalized waveform; or, the first transmitted waveform is a single-carrier modulation symbol waveform; or, the first transmitted waveform is an MSK waveform; or, the first transmitted waveform is a GMSK waveform. The first transmitted waveform can be a single-carrier waveform, which has a low PAPR, which is beneficial for improving the efficiency of the power amplifier of the terminal device and also helps to suppress waveform nonlinearity.

[0012] In one optional implementation, the power consumption of the first transmit link is lower than that of the second transmit link; and / or, the first transmit link includes fewer types of devices than the second transmit link. The power consumption of the first transmit link can be relatively low, which is beneficial for reducing uplink transmit power consumption.

[0013] In one alternative implementation, the first link metric imposes less restriction on the transmit link than the second link metric. Alternatively, it can be understood that the first link metric is more lenient than the second link metric. Because the first link metric is more lenient, it helps reduce transmit link power consumption, thereby reducing uplink transmit power consumption.

[0014] In an optional implementation, the method further includes: determining first information, the first information indicating resources corresponding to the first transmission parameters, the resources being used to transmit the first uplink signal; and / or determining second information, the second information indicating resources corresponding to the second transmission parameters. The first information may be configured or scheduled by a network device, or it may be pre-configured information. The terminal device can determine the resources corresponding to the first transmission parameters based on the first information. The second information may be configured or scheduled by a network device, or it may be pre-configured information. The terminal device can determine the resources corresponding to the second transmission parameters based on the second information.

[0015] In an optional implementation, the method further includes: transmitting an uplink reference signal; and receiving third information, the third information indicating that the uplink signal is transmitted using the first transmission parameters. For example, the network device can determine the first transmission parameters or the second transmission parameters based on the uplink reference signal from the terminal device, and thus the network device can send the third information to the terminal device to indicate the first transmission parameters or the second transmission parameters. Since the transmission parameters are determined by the network device, the terminal device does not need to perform an excessive determination process, which simplifies the implementation of the terminal device.

[0016] In an optional implementation, before transmitting the uplink reference signal, the method further includes: receiving fourth information, the fourth information indicating the transmit power of the uplink reference signal; or, transmitting fourth information, the fourth information indicating the transmit power of the uplink reference signal. The transmit power of the uplink reference signal can be determined by a network device or a terminal device, and both the network device and the terminal device can know the transmit power. Therefore, the terminal device can transmit the uplink reference signal according to the transmit power, and the network device can determine the transmission parameters according to the transmit power and the received power of the uplink reference signal.

[0017] In an alternative implementation, the third information is also used to schedule the first uplink signal. For example, the network device can carry the third information through the channel used for scheduling the first uplink signal, thus eliminating the need for the network device to send the channel-carried third information separately, which helps save signaling overhead.

[0018] In an optional implementation, the method further includes: sending fifth information, the fifth information indicating that the terminal expects to send an uplink signal using the first transmission parameters, or the fifth information indicating the first parameters. The terminal device can use the fifth information to indicate the transmission parameters determined by the terminal device (i.e., the transmission parameters that the terminal device expects or requests to use), so that the network device can refer to the opinions from the terminal device when determining the transmission parameters for the terminal device, ensuring that the finally determined transmission parameters meet the needs of the terminal device.

[0019] In one alternative implementation, the first parameter includes path loss and / or power margin, the power margin indicating the difference between the reference transmit power and the maximum transmit power. The first parameter may also include other parameters, without limitation.

[0020] In one optional implementation, sending the fifth information includes: periodically sending the fifth information; or, sending the fifth information when a first condition is met. The fifth information may be sent periodically, or it may be sent when the first condition is met, or it may be sent under other circumstances; there are no limitations on this.

[0021] In one optional implementation, the first condition includes one or more of the following: the reference transmit power is less than or equal to a first threshold; or, the power margin is greater than or equal to a second threshold; or, the path loss is less than or equal to a third threshold; or, the first distance is less than or equal to a fourth threshold, where the first distance indicates the distance between the terminal and the network device. Optionally, if the first condition is met, it can be assumed that the terminal device expects or requests to use the first transmit parameter. For example, the terminal device would normally use the second transmit parameter in a conventional manner. If the first condition is met, the terminal device may expect or request to use (or switch to) the first transmit parameter. Therefore, the first condition can also be understood as a condition for changing the transmit mode or transmit parameter. Alternatively, because the terminal device may expect or request to use the first transmit parameter when the first condition is met, the first condition can also be understood as a condition for the use or triggering of the first transmit parameter.

[0022] Secondly, a second communication method is provided, which can be applied to a network-side device, also referred to as a network device. This network device is, for example, a network equipment, or other equipment including network equipment functions, or a circuit, or a chip system (or chip) or other functional module capable of implementing the functions of the network equipment, and is, for example, disposed within the network equipment. The network equipment includes, for example, core network equipment and / or access network equipment. The network equipment is, for example, a serving network equipment for a terminal device. The method includes: sending third information corresponding to first transmission parameters or second transmission parameters, wherein the first transmission parameters include one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator, and the second transmission parameters include one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator, wherein at least one of the first transmission parameters differs from at least one of the second transmission parameters; and receiving a first uplink signal sent by the terminal with the first transmission parameters or the second transmission parameters.

[0023] In one optional implementation, the first maximum transmit power is the maximum transmit power corresponding to a first power category, and the maximum transmit power corresponding to the first power category is less than the maximum transmit power corresponding to a second power category. The first power category corresponds to the first transmit parameter, the second power category corresponds to the second transmit parameter, and the maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm.

[0024] In one alternative implementation, the first maximum transmit power is 0 dBm, 10 dBm, or 15 dBm.

[0025] In one alternative implementation, the first maximum transmit power is determined based on a first value and the maximum transmit power corresponding to a second power category, wherein the maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm.

[0026] In one optional implementation, the first transmitted waveform is a single-carrier frequency-domain equalized waveform; or, the first transmitted waveform is a single-carrier modulation symbol waveform; or, the first transmitted waveform is an MSK waveform; or, the first transmitted waveform is a GMSK waveform.

[0027] In one alternative implementation, the power consumption of the first transmission link is lower than that of the second transmission link; and / or, the first transmission link includes fewer types of devices than the second transmission link.

[0028] In one alternative implementation, the first link metric imposes less limitation on the transmission link than the second link metric imposes on the transmission link.

[0029] In an optional implementation, the method further includes: sending first information, the first information being used to indicate a resource corresponding to the first transmission parameter, the resource being used to send the first uplink signal; and / or sending second information, the second information being used to indicate a resource corresponding to the second transmission parameter.

[0030] In an optional implementation, the method further includes receiving an uplink reference signal.

[0031] In one alternative implementation, before receiving the uplink reference signal, the method further includes: sending fourth information, the fourth information being used to indicate the transmit power of the uplink reference signal; or, before receiving the uplink reference signal, the method further includes: receiving fourth information, the fourth information being used to indicate the transmit power of the uplink reference signal.

[0032] In an optional implementation, the method further includes: receiving fifth information, the fifth information being used to indicate that the terminal expects to send an uplink signal using the first transmission parameters, or the fifth information being used to indicate the first parameters.

[0033] In one alternative implementation, the first parameter includes path loss and / or power margin, the power margin indicating the difference between the reference transmit power and the maximum transmit power.

[0034] For the technical effects of the second aspect or various alternative implementation methods, please refer to the introduction of the technical effects of the first aspect or corresponding implementation methods.

[0035] Thirdly, a communication device is provided. The communication device can be a terminal device as described in any of the first to second aspects above. The communication device possesses the functions of the aforementioned terminal device. For example, the communication device has the functions described in any of the first to second aspects above. For instance, the communication device includes modules, units, or means corresponding to the operations described in any of the first to second aspects above. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware. The communication device is, for example, a terminal device, or other device including terminal device functions, or a chip system (or chip or circuit) or other functional module capable of implementing the functions of a terminal device. This chip system or functional module is, for example, disposed within a terminal device. In one optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module). A transceiver unit can perform both sending and receiving functions. When the transceiver unit performs the sending function, it can be called a sending unit (sometimes also called a sending module), and when it performs the receiving function, it can be called a receiving unit (sometimes also called a receiving module). The sending unit and the receiving unit can be the same functional module, which is called the transceiver unit and can perform both sending and receiving functions; or, the sending unit and the receiving unit can be different functional modules, and the transceiver unit is a collective term for these functional modules.

[0036] In one optional implementation, the processing unit is configured to determine a first transmission parameter, wherein the terminal supports the first transmission parameter and a second transmission parameter, wherein the first transmission parameter includes one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator, and the second transmission parameter includes one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator, wherein at least one of the first transmission parameter is different from at least one of the second transmission parameter; the transceiver unit (or the transmitting unit) is configured to transmit a first uplink signal according to the first transmission parameter.

[0037] In an alternative embodiment, the communication device further includes a storage unit (sometimes also called a storage module), and the processing unit is configured to couple with the storage unit and execute programs or instructions in the storage unit to enable the communication device to perform the functions of the terminal device described in any one of the first to second aspects above.

[0038] Fourthly, a communication device is provided. The communication device can be a network device as described in any of the first to second aspects above. The communication device possesses the functions of the aforementioned network device. For example, the communication device has the functions described in any of the first to second aspects above. For instance, the communication device includes modules, units, or means corresponding to the operations described in any of the first to second aspects above. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware. The communication device is, for example, a network device, or other device including network device functions, or a chip system (or chip or circuit) or other functional module capable of implementing the functions of a network device. This chip system or functional module is, for example, disposed within a network device. In one optional implementation, the communication device includes a baseband device and a radio frequency device. In another optional implementation, the communication device includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module). For details on the implementation of the transceiver unit, please refer to the relevant description in the third aspect.

[0039] In one optional implementation, the transceiver unit (or the sending unit) is configured to send third information, the third information corresponding to a first transmission parameter or a second transmission parameter, wherein the first transmission parameter includes one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator, and the second transmission parameter includes one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator, wherein at least one of the first transmission parameters is different from at least one of the second transmission parameters; the transceiver unit (or the receiving unit) is configured to receive a first uplink signal sent by the terminal with the first transmission parameter or the second transmission parameter.

[0040] In an alternative embodiment, the communication device further includes a storage unit (sometimes also called a storage module), and the processing unit is configured to couple with the storage unit and execute programs or instructions in the storage unit to enable the communication device to perform the functions of the network device described in any one of the first to second aspects above.

[0041] Fifthly, a communication device is provided, the communication device comprising a memory and one or more processors. The memory is used to store part or all of a computer program or instructions necessary for implementing the functions involved in the first or second aspect described above. The one or more processors are capable of executing the computer program or instructions, such that when the computer program or instructions are executed, the communication device implements the methods in any possible design or implementation of the first or second aspect described above.

[0042] In one possible design, the communication device may further include an interface circuit, wherein the processor is used to communicate with other devices or components through the interface circuit.

[0043] In one possible design, the communication device may also include the memory.

[0044] The aforementioned communication device may be a terminal, a communication module in a terminal, or a chip in a terminal that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module.

[0045] A sixth aspect provides a communication device comprising a memory and one or more processors. The memory stores part or all of a computer program or instructions necessary for implementing the functions described in the first or second aspect. The one or more processors are executable to carry out the computer program or instructions, which, when executed, cause the communication device to implement the methods in any possible design or implementation of the first or second aspect.

[0046] In one possible design, the communication device may further include an interface circuit, wherein the processor is used to communicate with other devices or components through the interface circuit.

[0047] In one possible design, the communication device may also include the memory.

[0048] The aforementioned communication device may be a network device, a communication module in a network device, or a chip in a network device that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip that contains a modem module.

[0049] A seventh aspect provides a communication system including a network-side device, wherein the network-side device is configured to perform the method executed by the network device as described in any one of the first to second aspects. For example, the network-side device can be implemented using the communication device described in the fourth or sixth aspect.

[0050] Optionally, the communication system further includes a terminal-side device, wherein the terminal-side device is used to perform the method executed by the terminal device as described in any one of the first to second aspects. For example, the terminal-side device can be implemented using the communication device described in the third or fifth aspect.

[0051] Eighthly, a computer-readable storage medium is provided for storing a computer program or instructions that, when executed, cause the methods performed by the terminal device or network device in the above aspects to be implemented.

[0052] Ninthly, a computer program product containing instructions is provided, which, when the computer program or instructions are run on a computer, causes the methods described in the above aspects to be implemented.

[0053] In a tenth aspect, a chip system is provided, including a processor and an interface, the processor being configured to call and execute instructions from the interface to enable the chip system to implement the methods described above. Attached Figure Description

[0054] Figure 1 is a schematic diagram of a network architecture applied in an embodiment of this application;

[0055] Figure 2 is a flowchart of a communication method provided in an embodiment of this application;

[0056] Figure 3 is a schematic diagram of a second transmission link in an embodiment of this application;

[0057] Figure 4 is a schematic diagram of a device provided in an embodiment of this application;

[0058] Figure 5 is a schematic diagram of another device provided in an embodiment of this application. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0060] In this application embodiment, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. 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. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. "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 means: 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.

[0061] The ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of the multiple objects. Furthermore, the numbering of steps in the various embodiments described in this application is only to distinguish different steps and is not used to limit the order in which the steps are performed.

[0062] The following explanations of some terms or concepts used in the embodiments of this application are provided to facilitate understanding by those skilled in the art.

[0063] In this embodiment, the terminal device is a device with wireless transceiver capabilities, which can be a fixed device, a mobile device, a handheld device (e.g., a mobile phone), a wearable device, an in-vehicle device, or a wireless device (e.g., a communication module, a modem, or a chip system, etc.) built into the aforementioned devices. The terminal device is used to connect people, objects, machines, etc., and can be widely used in various scenarios, including but not limited to the following: sensing scenarios, cellular communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine / machine-type communications (M2M / MTC) communication, Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical care, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, drones, robots, and indoor commercial scenarios (such as mobile phone screen mirroring, file sharing, and mobile phone to VR glasses video transmission). When the terminal equipment is applied to V2X, it can also be called a V2X device, such as a smart car, digital car, unmanned car, driverless car, pilotless car, or automobile, self-driving car, or autonomous car, pure electric vehicle (EV), hybrid electric vehicle (HEV), range-extended electric vehicle (REEV), plug-in hybrid electric vehicle (PHEV), new energy vehicle, or roadside unit (RSU). The terminal equipment can also be a device used in D2D communication, such as an electricity meter or water meter.

[0064] Furthermore, in this embodiment of the application, the terminal device can also be a terminal device in an Internet of Things (IoT) system. IoT is an important component of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.

[0065] The various terminal devices described above, if located in a vehicle (e.g., placed inside or installed inside a vehicle), can all be considered in-vehicle terminal devices, also known as on-board units (OBUs). The terminal device of this application can also be an in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit built into a vehicle as one or more components or units. The vehicle can implement the methods of this application through the built-in in-vehicle module, in-vehicle component, in-vehicle chip, or in-vehicle unit.

[0066] The terminal equipment may sometimes be referred to as UE, terminal, access station, UE station, remote station, wireless communication equipment, or user equipment, etc.

[0067] In this application embodiment, the communication device used to implement the terminal device function can be a terminal device, which can be a terminal device or a device capable of supporting the terminal device to implement the function, such as a chip system. This device can be installed in the terminal device. In the technical solutions provided in this application embodiment, the terminal device is described as an example.

[0068] The network devices in this application embodiment include, for example, access network devices (or access network elements) and / or core network devices (or core network elements). The access network devices are devices with wireless transceiver capabilities, used to communicate with the terminal devices. The access network devices include, but are not limited to, base stations (base transceiver stations, BTS, Node B, evolved Node B (eNodeB) / eNB, or the next generation Node B (gNodeB) / gNB), transmission reception points (TRPs), base stations evolved from the 3rd generation partnership project (3GPP), access nodes in wireless fidelity (Wi-Fi) systems, wireless relay nodes, wireless backhaul nodes, etc. The base stations can be: macro base stations, micro base stations, pico base stations, small cells, relay stations, etc. Multiple base stations can support networks using the same access technology or networks using different access technologies. A base station can contain one or more co-located or non-co-located transmission and reception points. The access network equipment can also be a radio controller, centralized unit (CU), and / or distributed unit (DU) in a cloud radio access network (CRAN) scenario. The access network equipment can also be a server, etc. For example, the network equipment in V2X technology can be a roadside unit (RSU). The following description uses a base station as an example to illustrate the access network equipment. A base station can communicate with a terminal device, or it can communicate with a terminal device through a relay station. A terminal device can communicate with multiple base stations in different access technologies. The core network equipment is used to implement functions such as mobility management, data processing, session management, policy and billing. The names of the equipment implementing core network functions may differ in systems using different access technologies; this application does not limit this.Taking the 5th generation (5G) mobile communication technology system as an example, the core network equipment includes, for example, access and mobility management function (AMF), session management function (SMF), policy control function (PCF), or user plane function (UPF), etc.

[0069] In a CU-DU architecture, or in an open RAN (ORAN) system, access network equipment may include one or more logical network elements such as a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs may be separate entities or included in the same network element, such as a baseband unit (BBU). RUs may be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0070] 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-CP), and RU can also be called an open RU (O-RU). For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples in its embodiments. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0071] The CU and DU can be configured according to the protocol layer functions of the wireless network they implement. For example, the CU can be configured to implement the functions of the Packet Data Convergence Protocol (PDCP) layer and above (such as the Radio Resource Control (RRC) layer and / or the Service Data Adaptation Protocol (SDAP) layer); the DU can be configured to implement the functions of protocol layers below the PDCP layer (such as one or more of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, or Physical (PHY) layer). As another example, the CU can be configured to implement the functions of protocol layers above the PDCP layer (such as the RRC and / or SDAP layers), and the DU can be configured to implement the functions of protocol layers below the PDCP layer (such as one or more of the RLC, MAC, or PHY layers).

[0072] 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 RLC layer functions 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.

[0073] 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.

[0074] In this application embodiment, the communication device used to implement the functions of a network device can be referred to as a network device (for example, a device used to implement the functions of an access network device is an access network device, and a device used to implement the functions of a core network device is a core network device). This network device can be a network element, a network device, or a device capable of supporting the network device or network element to implement the function, such as a chip system. This device can be installed in the network device. In the technical solutions provided in this application embodiment, the network device is described as an example of a network device.

[0075] Different signals may have different requirements for transmission parameters, but the UE's transmitter processes different signals in the same way, which cannot meet the needs of different signals. Therefore, in this embodiment, the terminal device can support multiple sets of transmission parameters, such as a first transmission parameter and a second transmission parameter, so that when transmitting a signal, the appropriate transmission parameter can be selected from multiple sets of transmission parameters, ensuring that the selected transmission parameter meets the requirements of the corresponding signal. Furthermore, the use of multiple sets of transmission parameters makes the transmission process of the terminal device more flexible.

[0076] The technical solutions provided in this application can be applied to fourth-generation (4G) systems, such as Long Term Evolution (LTE) systems, or to 5G systems, such as New Radio (NR) systems, or to next-generation mobile communication systems or other similar communication systems, such as sixth-generation (6G) systems, etc., without specific limitations. Furthermore, the technical solutions provided in this application can also be applied to D2D scenarios, such as NR-D2D scenarios, or to V2X scenarios, such as NR-V2X scenarios. For example, the technical solutions provided in this application can be used in fields such as factory manufacturing, smart homes, intelligent driving, assisted driving, intelligent connected vehicles, or indoor commercial scenarios.

[0077] Please refer to Figure 1, which is a schematic diagram of an application scenario according to an embodiment of this application. Figure 1 includes a network device and a UE, and the UE can send uplink signals to the network device.

[0078] The method provided by the embodiments of this application is described below with reference to the accompanying drawings. In various embodiments of this application, "transmission parameters" and "transmission mode" may be the same feature, and the two can be interchanged. For example, "transmission parameters" described below can also be replaced by "transmission mode"; or, "transmission mode" and "transmission parameters" can correspond one-to-one. For example, "transmission parameters" described below can correspond to the corresponding "transmission mode". For example, "first transmission parameter" can be replaced by "first transmission mode", or "first transmission mode" can correspond to "first transmission parameter"; as another example, "second transmission parameter" can be replaced by "second transmission mode", or "second transmission mode" can correspond to "second transmission parameter". Alternatively, "transmission mode" can include "transmission parameters", then "transmission parameters" described below can be included in the corresponding "transmission mode". For example, "first transmission parameter" is included in "first transmission mode", and "second transmission parameter" is included in "second transmission mode". In addition, "transmission mode" can also have other names, such as "transmission method" or "transmission type", etc., and these names can be interchanged. In the description herein, "transmission parameters" are used as an example. The various embodiments in this document can be applied to the network architecture shown in Figure 1. For example, the UE described in the various embodiments of this document can be the UE in Figure 1, and the network device described in the various embodiments of this document can be the network device in Figure 1. In the accompanying drawings corresponding to the various embodiments of this document, all steps indicated by dashed lines are optional steps.

[0079] This application provides a communication method, please refer to Figure 2, which is a flowchart of the method.

[0080] S201, UE determines the first transmission parameters.

[0081] The first transmission parameter is one that the UE supports. Supporting the first transmission parameter can be understood in several ways: for example, the UE can transmit signals according to the first transmission parameter; or the transmission links included in the UE enable the UE to transmit signals according to the first transmission parameter; or the UE has the ability to transmit signals according to the first transmission parameter; or the hardware and / or software resources possessed by the UE enable the UE to transmit signals according to the first transmission parameter, and so on. For example, the first transmission parameter may include one or more of the following: a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link specification.

[0082] In addition, the UE also supports a second transmission parameter. This support can be understood as follows: the UE can transmit signals according to the second transmission parameter; or the transmission links included in the UE enable the UE to transmit signals according to the second transmission parameter; or the UE has the ability to transmit signals according to the second transmission parameter; or the hardware and / or software resources of the UE enable the UE to transmit signals according to the second transmission parameter, etc. The second transmission parameter may include one or more of the following: a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link specification.

[0083] The UE supports both a first transmission parameter and a second transmission parameter. For example, this can be understood as the UE being able to transmit signals based on either the first or second transmission parameter; or it can be understood as the transmission links included in the UE enabling the UE to transmit signals based on both the first and second transmission parameters; or it can be understood as the UE possessing both the ability to transmit signals based on the first and second transmission parameters; or it can be understood as the UE having hardware and / or software resources enabling it to transmit signals based on both the first and second transmission parameters, and so on. Optionally, the UE can use either the first or second transmission parameter at any given time; that is, these two transmission parameters may not be used simultaneously. For example, a UE with both low-power and high-power transmission requirements can support both the first and second transmission parameters; similarly, a UE with energy-saving requirements can support both the first and second transmission parameters. This application does not limit which specific UE can support these two transmission parameters.

[0084] The first transmission parameter differs from the second transmission parameter. For example, at least one parameter included in the first transmission parameter differs from at least one parameter included in the second transmission parameter. For instance, the parameters included in the first transmission parameter differ from those included in the second transmission parameter; for example, the types of parameters included in the first transmission parameter are partially or completely different from those included in the second transmission parameter. For example, the first transmission parameter includes a waveform parameter whose value corresponds to a first transmitted waveform, while the second transmission parameter does not include a waveform parameter, indicating that the transmitted waveform corresponding to the second transmission parameter is not limited. Another example is that the values ​​of the parameters included in the first transmission parameter differ from the values ​​of the corresponding parameters included in the second transmission parameter; for example, the first maximum transmission power included in the first transmission parameter differs from the second maximum transmission power included in the second transmission parameter. Optionally, the difference between the values ​​of the parameters included in the first transmission parameter and the corresponding values ​​included in the second transmission parameter may include the actual values ​​of the parameters included in the first transmission parameter differing from the actual values ​​of the corresponding parameters included in the second transmission parameter, and / or may include the candidate values ​​of the parameters included in the first transmission parameter being completely or partially different from the candidate values ​​of the corresponding parameters included in the second transmission parameter.

[0085] For example, when the UE uses the first transmission parameter, the actual value of the first maximum transmission power included in the first transmission parameter is 10dBm; when the UE uses the second transmission parameter, the actual value of the second maximum transmission power included in the second transmission parameter is 23dBm. It is clear that the first maximum transmission power and the second maximum transmission power are different. As another example, the candidate values ​​for the first maximum transmission power included in the first transmission parameter include 0dBm, 10dBm, and 15dBm; the candidate values ​​for the second maximum transmission power included in the second transmission parameter include 23dBm, 26dBm, and 29dBm. In this example, the candidate values ​​for the first maximum transmission power and the candidate values ​​for the second maximum transmission power are completely different, indicating that the first maximum transmission power and the second maximum transmission power are different. For another example, the first transmission parameter includes candidate values ​​for the first maximum transmission power, such as 10dBm, 15dBm, and 23dBm; the second transmission parameter includes candidate values ​​for the second maximum transmission power, such as 23dBm, 26dBm, and 29dBm. In this example, the candidate values ​​for the first maximum transmission power are partially different from the candidate values ​​for the second maximum transmission power, indicating that the first maximum transmission power and the second maximum transmission power are different.

[0086] Optionally, the first transmission parameter may also be called a low-power transmission parameter, etc., and the name is not limited. Essentially, this application introduces a new transmission parameter that is applicable to low-power transmission. By performing signal transmission using this parameter, the uplink transmission power consumption of the UE can be reduced. For ease of understanding, before introducing the first transmission parameter, the relevant content regarding the uplink transmission power consumption of the UE will be introduced first.

[0087] 5G UEs consume a significant amount of power, making UE energy saving a hot topic. Currently, standard UE energy saving solutions primarily focus on reducing downlink reception power consumption, including reducing downlink reception time or using low-power receivers. However, uplink transmission power consumption is rarely discussed. The embodiments in this application aim to reduce uplink transmission power consumption of the UE.

[0088] The uplink transmit power consumption of the UE can include the power consumption of the power amplifier and the transmit link power consumption. The power consumption of the power amplifier is related to the uplink transmit power and the efficiency of the power amplifier. For example, the power consumption of the power amplifier satisfies the following relationship:

[0089] According to Formula 1, reducing the uplink transmit power can reduce the power consumption of the power amplifier; improving the efficiency of the power amplifier can also reduce the power consumption of the power amplifier.

[0090] When the uplink transmit power is high, the efficiency of the power amplifier is high, for example, about 40% to 50%; while when the uplink transmit power is low, the efficiency of the power amplifier is low, for example, about 10%. It can be seen that if the uplink transmit power is low, the efficiency of the power amplifier will also decrease, which is not conducive to saving uplink transmit power consumption.

[0091] Transmit link power consumption can include digital domain computation power consumption and device power consumption, which can include components that constitute the transmit link. For example, the UE's transmit link can be referenced in Figure 3. Digital domain computation power consumption may be the power consumption brought by the digital processing module in Figure 3, which can perform one or more of the following processes: digital predistortion, signal correction, modulation and coding, fast Fourier transform (FFT), or inverse fast Fourier transform (IFFT). Device power consumption may include the power consumption brought by components such as crystal oscillators, mixers, and digital-to-analog converters in Figure 3. If the uplink transmit power is low, the transmit link power consumption will account for a relatively large proportion of the uplink transmit power consumption.

[0092] As described above, when the uplink transmit power is low, the efficiency of the power amplifier is low, resulting in higher power amplifier power consumption. Furthermore, when the uplink transmit power is low, the power consumption of the transmit link also accounts for a relatively large proportion. Therefore, this application introduces a first transmit parameter, which is applicable to lower uplink transmit powers. By using the first transmit parameter, even with low uplink transmit power, uplink transmit power consumption can be reduced, for example, by reducing the power amplifier power consumption and / or transmit link power consumption, thereby achieving UE energy saving.

[0093] The following describes the items included in the first launch parameters.

[0094] 1. First maximum transmission power.

[0095] The first maximum transmit power can be implemented in different ways. As an optional implementation, the first maximum transmit power can be the maximum transmit power corresponding to a first power class, such as the power class defined in the embodiments of this application. The first power class can also have other names, such as a low-power power class, etc., and the embodiments of this application do not limit the name. By defining a new power class to implement the first maximum transmit power, the UE does not need to perform additional calculations, thus simplifying the implementation of the UE.

[0096] The first power category may be different from the power category corresponding to the second maximum transmit power. The power category corresponding to the second maximum transmit power is called the second power category, which may be, for example, power category 1, power category 2, or power category 3. The maximum transmit power corresponding to power category 1 is 29 dBm, the maximum transmit power corresponding to power category 2 is 26 dBm, and the maximum transmit power corresponding to power category 3 is 23 dBm; that is, the second maximum transmit power may be, for example, 23 dBm, 26 dBm, or 29 dBm. The first power category introduced in this application embodiment is different from these three power categories. For example, the first power category may be defined as power category 4 or power category 5, or other definitions may be used. Optionally, the maximum transmit power corresponding to the first power category (i.e., the first maximum transmit power) may be less than the second maximum transmit power. For example, if the second maximum transmit power is 23 dBm, then the first maximum transmit power can be less than 23 dBm; as another example, if the second maximum transmit power is 26 dBm, then the first maximum transmit power can be less than 26 dBm; and as yet another example, if the second maximum transmit power is 29 dBm, then the first maximum transmit power can be less than 29 dBm. As an optional implementation, the first maximum transmit power can be, for example, 0 dBm, 10 dBm, or 15 dBm, or it can be any other value less than the second maximum transmit power.

[0097] As another optional implementation of the first maximum transmit power, the first maximum transmit power can be determined based on a first value and a second maximum transmit power, where the second maximum transmit power corresponds to a second power category, such as 23dBm, 26dBm, or 29dBm. The first value can also be called a power backoff value, or it can have other names; there is no limitation on the name. For example, the physical meaning of the first value can be a power backoff item used to perform power backoff; or, the first value may not have a substantial physical meaning, or its physical meaning may be to obtain the first maximum transmit power, or its physical meaning may correspond to a first transmit parameter. In this case, the first value may not be configured as a power backoff item, but rather as a parameter used to determine the first maximum transmit power. Optionally, the first maximum transmit power can satisfy the following relationship: P CMAX,L,f,c ≤P CMAX,f,c ≤P CMAX,H,f,c (Formula 2)P CMAX,L,f,c =min{P EMAX,c -ΔT C,c ,(P PowerClass -ΔP PowerClass )-max(max(MPR c AMPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS PMPR c (Formula 3)P CMAX,H,f,c =min{P EMAX,c ,P PowerClass -ΔP PowerClass} (Formula 4)

[0098] Among them, P CMAX,f,c This represents the first maximum transmit power, for example, the first maximum transmit power corresponds to carrier f and cell c. P CMAX,L,f,c P represents the lower limit of the first maximum transmit power value. CMAX,H,f,c This represents the upper limit of the first maximum transmit power value. PowerClass This indicates the second maximum transmit power. MPR c AMPR c and PMPR c Indicates the first value, such as MPR. c AMPR is the maximum power back-off value. c Indicates the additional power back-off value, PMPR c This represents the power backoff value corresponding to power management. ΔT C,c and ΔTIB,c This represents additional tolerance, such as the additional tolerance for power back-off. ΔT RxSRS This represents the additional tolerance when considering the channel sounding reference signal (SRS). P EMAX,c Indicates the maximum transmit power configured for the network (e.g., configured via system messages or other signaling). ΔP PowerClass This represents the power backoff value related to the percentage of uplink symbols. min(x,y) represents the smaller of x and y. max(x,y) represents the larger of x and y.

[0099] For example, UE can determine P according to Formula 3. CMAX,L,f,c And determine P according to Formula 4 CMAX,H,f,c Therefore, according to Formula 2, UE can be less than or equal to P. CMAX,H,f,c and greater than or equal to P CMAX,L,f,c The UE can determine a value from the values ​​to be the first maximum transmit power. For example, the UE can randomly select a value as the first maximum transmit power, or the UE can determine the first maximum transmit power based on the first transmit parameters or the capabilities of the UE.

[0100] As another optional implementation of the first maximum transmit power, the first maximum transmit power can be the maximum transmit power configured by the network corresponding to the newly introduced first transmit parameter, such as P mentioned above. EMAX,c For example, network devices can configure independent P for the first transmission parameter and the second transmission parameter respectively. EMAX,c Optionally, the first transmit parameter corresponding to the low-power transmit parameter is P. EMAX,c It can be less than P corresponding to the second emission parameter. EMAX,c .

[0101] Regardless of the implementation method described above for the first maximum transmit power, optionally, the first maximum transmit power can be less than the second maximum transmit power. As can be seen from the previous introduction to uplink transmit power consumption, reducing the uplink transmit power helps to reduce the power consumption of the UE's power amplifier, thereby effectively reducing the uplink transmit power consumption.

[0102] 2. First transmitted waveform.

[0103] Optionally, the first transmitted waveform can be a single-carrier waveform, such as a single-carrier-frequency-domain equalized waveform. This single-carrier-frequency-domain equalized waveform may not require processing such as discrete Fourier transform (DFT) and IFFT, or it may be equivalent to having the same number of points in both DFT and IFFT. This results in a lower peak-to-average power ratio (PAPR) for the single-carrier-frequency-domain equalized waveform, which is beneficial for improving the efficiency of the UE's power amplifier and suppressing waveform nonlinearity. Optionally, to combat multipath channels, a cyclic prefix (CP) can be added before each time-domain modulation symbol included in the signal using the first transmitted waveform. This facilitates the receiver performing FFT on the signal and then equalizing it in the frequency domain, thereby improving the demodulation performance of the signal.

[0104] Alternatively, the single-carrier waveform can be, for example, a single-carrier modulated symbol waveform. For instance, by not adding a cyclic prefix before each time-domain modulated symbol included in each time-domain symbol of the signal using the first transmitted waveform, a single-carrier modulated symbol waveform can be obtained. Using a single-carrier modulated waveform improves spectral efficiency compared to the aforementioned single-carrier-frequency equalization waveform, but it requires a more complex receiving algorithm to remove symbol-level interference.

[0105] Alternatively, the first transmitted waveform can also be a constant-mode waveform, such as minimum shift keying (MSK) or Gaussian minimum-shift keying (GMSK). A lower PAPR (Power Amplitude Reduction Rate) in a constant-mode waveform is beneficial for improving the efficiency of the UE's power amplifier and also helps suppress waveform nonlinearity.

[0106] The first transmitted waveform and the second transmitted waveform can be different. For example, the second transmitted waveform can be a DFT-spread-orthogonal frequency division multiplexing (DFT-s-OFDM) waveform or a CP-OFDM waveform.

[0107] As discussed earlier regarding uplink transmit power consumption, improving the efficiency of the UE's power amplifier helps reduce the power consumption of the UE's power amplifier, which is equivalent to reducing uplink transmit power consumption.

[0108] 3. First transmission link.

[0109] Optionally, the first transmission link and the second transmission link may satisfy one or more of the following: the power consumption of the first transmission link is lower than that of the second transmission link; the first transmission link includes fewer types of devices than the second transmission link; or the first transmission link includes fewer devices than the second transmission link.

[0110] The first transmission link has low power consumption, which can be achieved, for example, by one or more of the following: the first transmission link includes fewer types of devices, the first transmission link includes fewer devices, or the first transmission link includes devices with lower specifications. Wherein, the first transmission link includes fewer types of devices relative to the second transmission link, i.e., the first transmission link includes fewer types of devices than the second transmission link; similarly, the first transmission link includes fewer devices relative to the second transmission link, i.e., the first transmission link includes fewer devices than the second transmission link; the first transmission link includes lower specifications of devices relative to the second transmission link, i.e., at least one device in the first transmission link may have a lower specification than the corresponding device in the second transmission link.

[0111] Referring to Figure 3, the second transmit link includes a digital processing module, a digital-to-analog converter module, a baseband filter, a mixer, a crystal oscillator, a power amplifier, an RF filter, and an antenna. Optionally, the first transmit link may include fewer types of components than the second transmit link. For example, the first transmit link may not include the mixer and / or RF converter shown in Figure 3, which is equivalent to removing some modules from the first transmit link compared to the second transmit link. If the first transmit link removes modules such as the mixer and / or RF converter, the UE can use RF modulation to transmit signals using the first transmit link. Furthermore, if the first transmit link removes some modules compared to the second transmit link, the number of components included in the first transmit link will be less than the number of different types of components included in the second transmit link.

[0112] The first and second transmission links may include the same type of modules or devices, such as crystal oscillators. However, the specifications of the same type of modules or devices included in the first and second transmission links may differ. For example, the specifications of at least one module or device included in the first transmission link may be lower than those of the same type of modules or devices included in the second transmission link. For instance, both the first and second transmission links include crystal oscillators, but the crystal oscillator included in the second transmission link may have higher precision, while the precision of the crystal oscillator included in the first transmission link may be lower. As another example, both the first and second transmission links include digital-to-analog converters (DACs), but the precision of the DAC included in the second transmission link may be higher, while the precision of the DAC included in the first transmission link may be lower.

[0113] By reducing the number and / or types of devices or modules included in the first transmission link, and / or lowering the specifications of the devices or modules included in the first transmission link, the first transmission link can be simplified, thereby reducing the power consumption of the first transmission link and thus reducing the uplink transmission power consumption of the UE.

[0114] 4. First link indicator.

[0115] Optionally, the limitation imposed by the first link indicator on the transmission link may be less than the limitation imposed by the second link indicator on the transmission link. Optionally, the first link indicator may correspond to the first transmission link, or it may be considered that the first link indicator corresponds to the first transmission parameter; the second link indicator may correspond to the second transmission link, or it may be considered that the second link indicator corresponds to the second transmission parameter. If the first link indicator corresponds to the first transmission link and the second link indicator corresponds to the second transmission link, then the limitation imposed by the first link indicator on the transmission link can specifically be the limitation imposed by the first link indicator on the first transmission link, and the limitation imposed by the second link indicator on the transmission link can specifically be the limitation imposed by the second link indicator on the second transmission link.

[0116] It is evident that the first link metric imposes fewer restrictions on the transmission link, or it can be understood that the first link metric is more lenient than the second link metric, thereby reducing the power consumption of the first transmission link, or reducing the UE power consumption when using the first transmission parameters.

[0117] The first link metric may include one or more of the following: frequency error, in-band metric, or out-of-band metric. The second link metric may include one or more of the following: frequency error, in-band metric, or out-of-band metric. The parameters included in the first link metric and the parameters included in the second link metric may be exactly the same or partially the same.

[0118] Optionally, the first link metric may include in-band metrics such as one or more of the following: error vector magnitude (EVM), carrier leakage, or in-band emissions. The second link metric may also include one or more of the above-mentioned in-band metrics. For example, both the first and second link metrics may include the above-mentioned items, or the items included in the first link metric may be partially the same as those included in the second link metric, with the remaining items differing, or they may be completely different.

[0119] The first link metric includes out-of-band metrics such as one or more of the following: spectrum emission mask, adjacent channel leakage ratio, spurious emissions, or transmit intermodulation. The second link metric also includes out-of-band metrics such as one or more of the above. For example, both the first and second link metrics may include the above items, or the items included in the first link metric may be partially the same as those included in the second link metric and the remaining items may be different, or they may be completely different.

[0120] The limitations imposed on the transmission link by the first link metric can be reflected by the values ​​included in the first link metric; similarly, the limitations imposed on the transmission link by the second link metric can be reflected by the values ​​included in the second link metric. The limitations imposed on the transmission link by the first link metric are less than those imposed by the second link metric. For example, this can be achieved by ensuring that the value of at least one parameter included in the first link metric differs from the value of the corresponding parameter included in the second link metric, and that the value of at least one parameter included in the first link metric is more lenient than the value of the corresponding parameter included in the second link metric. An example is provided below for clarity.

[0121] 1. Frequency error, also known as transmission frequency error.

[0122] The frequency error included in the second link metric is, for example, ±0.1 parts per million (PPM). The frequency error included in the first link metric can be greater than the frequency error included in the second link metric, in order to relax the first link metric. For example, the frequency error included in the first link metric is ±1 PPM, ±5 PPM, ±10 PPM, or ±20 PPM, etc.

[0123] 2. In-band indicators.

[0124] (1) EVM.

[0125] The second link metric includes, for example, EVM, which can be found in Table 1.

[0126] Table 1

[0127] In Table 1, for example, when the modulation method is When using BPSK modulation, the corresponding EVM is 30%; when using QPSK modulation, the corresponding EVM is 17.5%, and so on.

[0128] If the first link metric includes EVM, then the EVM included in the first link metric can be more lenient than the EVM included in the second link metric. For example, for the same modulation scheme, the EVM included in the first link metric can be greater than the EVM included in the second link metric. For example, the EVM included in the first link metric can satisfy one or more of the following: when the modulation scheme is... In BPSK modulation, the EVM included in the second link metric is 30%, while the EVM included in the first link metric can be greater than 30%; in QPSK modulation, the EVM included in the second link metric is 17.5%, while the EVM included in the first link metric can be greater than 17.5%; in 16QAM modulation, the EVM included in the second link metric is 12.5%, while the EVM included in the first link metric can be greater than 12.5%; in 64QAM modulation, the EVM included in the second link metric is 8%, while the EVM included in the first link metric can be greater than 8%; or, in 256QAM modulation, the EVM included in the second link metric is 3.5%, while the EVM included in the first link metric can be greater than 3.5%.

[0129] Please refer to Table 2 for an example of EVM included in the first link metrics.

[0130] Table 2

[0131] Table 2 does not provide examples of EVM for modulation schemes of 16QAM, 64QAM, and 256QAM. Optionally, the EVM for these modulation schemes may also be greater than the corresponding EVM included in the second link specification. Alternatively, the first transmit parameter may not support higher-order modulation schemes, such as one or more of 16QAM, 64QAM, or 256QAM.

[0132] (2) Carrier leakage.

[0133] Second link metrics include, for example, carrier leakage, which can be found in Table 3.

[0134] Table 3

[0135] In Table 3, for example, when the output power is greater than 10 dBm, the corresponding carrier leakage is -28 dBc; when the output power is less than or equal to 10 dBm and greater than or equal to 0 dBm, the corresponding carrier leakage is -25 dBc, and so on. Here, output power refers to, for example, the uplink transmit power.

[0136] If the first link metric includes carrier leakage, then the carrier leakage included in the first link metric can be less than the carrier leakage included in the second link metric. For example, when the output power is within the same range, the value of the carrier leakage included in the first link metric can be greater than the value of the carrier leakage included in the second link metric. For example, the carrier leakage included in the first link metric may satisfy one or more of the following: when the output power is greater than 10 dBm, the carrier leakage included in the second link metric is -28 dBc, while the carrier leakage included in the first link metric may be greater than -28 dBc; when the output power is less than or equal to 10 dBm and greater than or equal to 0 dBm, the carrier leakage included in the second link metric is -25 dBc, while the carrier leakage included in the first link metric may be greater than -25 dBc; when the output power is less than or equal to 0 dBm and greater than or equal to -30 dBm, the carrier leakage included in the second link metric is -20 dBc, while the carrier leakage included in the first link metric may be greater than -20 dBc; or, when the output power is less than or equal to -30 dBm and greater than or equal to -40 dBm, the carrier leakage included in the second link metric is -10 dBc, while the carrier leakage included in the first link metric may be greater than -10 dBc.

[0137] Please refer to Table 4 for an example of carrier leakage included in the first link metric.

[0138] Table 4

[0139] Table 4 does not provide examples of carrier leakage with an output power greater than 10 dBm. Optionally, since the first link metric corresponds to the first transmit parameter, and the first transmit parameter is used in low-power transmit mode, the UE's uplink transmit power may be lower when using the first transmit parameter, for example, it may not be greater than 10 dBm. Alternatively, if the UE's uplink transmit power may be greater than 10 dBm when using the first transmit parameter, the corresponding carrier leakage can be greater than -28 dBc.

[0140] (3) Stray particles within the band.

[0141] The second link metric includes, for example, in-band spurious emissions, which can be found in Table 5.

[0142] Table 5

[0143] In Table 5, max(x,y) represents taking the larger value between x and y.RB L represents the number of resource blocks (RBs) corresponding to the total transmit bandwidth configuration. CRB This indicates the number of Relay Blocks (RBs) within the actual transmit bandwidth, and ΔRB represents the number of RBs separating the allocated RBs from the unallocated RBs. This represents the average transmit power. Sub-carrier spacing (SCS) represents the subcarrier spacing. I represents the in-phase component of the signal, and Q represents the quadrature component of the signal.

[0144] If the first link metric includes in-band spurious emissions, the in-band spurious emissions included in the first link metric can be less severe than those included in the second link metric. The in-band spurious emissions include multiple parameters, such as general, IQ image, and carrier leakage. The in-band spurious emissions included in the first link metric are less severe than those included in the second link metric, for example, at least one parameter included in the in-band spurious emissions of the first link metric is less severe than the corresponding parameter included in the in-band spurious emissions of the second link metric. For example, the in-band spurious emissions of the first link metric satisfy one or more of the following: the general spurious emissions included in the first link metric are less severe than the general spurious emissions included in the second link metric; the IQ image included in the in-band spurious emissions of the first link metric is less severe than the IQ image included in the in-band spurious emissions of the second link metric; or, the carrier leakage included in the in-band spurious emissions of the first link metric is less severe than the carrier leakage included in the in-band spurious emissions of the second link metric.

[0145] The generality of the in-band spurious emissions in the first link metric is more relaxed than that in the second link metric. For example, the generality of the in-band spurious emissions in the first link metric satisfies the following relationship:

[0146] Where a can be greater than -25, and / or b can be greater than -57. For example, a is -22 and b is -54. Taking a = -22 and b = -54 as an example, formula 5 can be replaced with:

[0147] The IQ image included in the in-band spurious emissions of the first link metric is more relaxed than the IQ image included in the in-band spurious emissions of the second link metric. For example, it can be implemented such that when the output power is >10dBm, the image frequency corresponding to the first link metric can be greater than -28dB; and / or, when the output power is ≤10dBm, the image frequency corresponding to the first link metric can be greater than -25dB.

[0148] The carrier leakage included in the first link metric can be less than that included in the second link metric, as can be seen in the introduction of item (3) above.

[0149] Please refer to Table 6 for an example of carrier leakage included in the first link metric.

[0150] Table 6

[0151] 3. Out-of-band indicators.

[0152] (1) Spectrum emission template.

[0153] The second link metric includes, for example, a spectrum emission template, which can be found in Table 7.

[0154] Table 7

[0155] [Corrected according to Rule 91, March 27, 2025] In Table 7, Δf OOB Indicates the distance between in-band and out-of-band. (BW) channel This represents the channel bandwidth. For example, the channel bandwidth is 3MHz, the measurement bandwidth is 1% of the channel bandwidth, and Δf... OOB When the value is ±0-1, the corresponding spectral emission limit is -13dBm; the channel bandwidth is 50MHz, the measurement bandwidth is 30kHz, and Δf OOB When the value is ±0-1, the corresponding spectral emission limit is -24dBm, and so on.

[0156] If the first link metric includes a spectrum emission template, then the spectrum emission template included in the first link metric can be more lenient than the spectrum emission template included in the second link metric. For example, in Δf OOB When the spectrum emission limit of the first link indicator is greater than that of the second link indicator, and the measurement bandwidth and channel bandwidth are within the same range, the spectrum emission limit of the first link indicator can be greater than that of the second link indicator. For example, the spectrum emission template included in the first link indicator can satisfy one or more of the following: channel bandwidth is 3MHz, measurement bandwidth is 1% of channel bandwidth, Δf OOB When the range is ±0-1, the spectral emission limit corresponding to the second link indicator is -13dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -13dBm; the channel bandwidth is 5MHz, the measurement bandwidth is 1% of the channel bandwidth, and Δf OOBWhen the range is ±0-1, the spectral emission limit corresponding to the second link indicator is -13dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -13dBm; the channel bandwidth is 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 35MHz, 40MHz, or 45MHz; the measurement bandwidth is 1% of the channel bandwidth; Δf OOB When the range is ±0-1, the spectral emission limit corresponding to the second link indicator is -13dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -13dBm; the channel bandwidth is 50MHz, 60MHz, 70MHz, 80MHz, 90MHz, or 100MHz; the measurement bandwidth is 30kHz; Δf OOB When the range is ±0-1, the spectral emission limit corresponding to the second link indicator is -24dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -24dBm; the channel bandwidth is 3MHz, the measurement bandwidth is 1MHz, and Δf OOB When the range is ±1-5, the spectral emission limit corresponding to the second link indicator is -10dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -10dBm; the channel bandwidth is 5MHz, the measurement bandwidth is 1MHz, and Δf OOB When the value is ±1-5, the spectral emission limit corresponding to the second link indicator is -10dBm, and the spectral emission limit corresponding to the first link indicator can be greater than -10dBm; the channel bandwidth is 10MHz or 15MHz or 20MHz or 25MHz or 30MHz or 35MHz or 40MHz or 45MHz, the measurement bandwidth is 1MHz, and Δf OOB When the range is ±1-5, the spectral emission limit corresponding to the second link indicator is -10dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -10dBm; the channel bandwidth is 3MHz, the measurement bandwidth is 1MHz, and Δf OOB When the value is ±5-6, the spectral emission limit corresponding to the second link indicator is -25dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -25dBm; the channel bandwidth is 5MHz, the measurement bandwidth is 1MHz, and Δf OOB When the value is ±5-6, the spectral emission limit corresponding to the second link indicator is -13dBm, while the spectral emission limit corresponding to the first link indicator can be greater than -13dBm; the channel bandwidth is 5MHz, the measurement bandwidth is 1MHz, and Δf OOB When the value is ±6-10, the spectral emission limit corresponding to the second link indicator is -25dBm, and the spectral emission limit corresponding to the first link indicator can be greater than -25dBm; the channel bandwidth is 10MHz or 15MHz or 20MHz or 25MHz or 30MHz or 35MHz or 40MHz or 45MHz, the measurement bandwidth is 1MHz, and Δf OOBWhen the value is ±1-5, the spectral emission limit corresponding to the second link indicator is -10dBm, and the spectral emission limit corresponding to the first link indicator can be greater than -10dBm; the channel bandwidth is 10MHz or 15MHz or 20MHz or 25MHz or 30MHz or 35MHz or 40MHz or 45MHz, the measurement bandwidth is 1MHz, and Δf OOB ±5-BW channel At that time, the spectral emission limit corresponding to the second link indicator is -13dBm, and the spectral emission limit corresponding to the first link indicator can be greater than -13dBm; or, the channel bandwidth is 10MHz or 15MHz or 20MHz or 25MHz or 30MHz or 35MHz or 40MHz or 45MHz, the measurement bandwidth is 1MHz, and Δf OOB ±BW channel -(BW channel When +5), the spectrum emission limit corresponding to the second link indicator is -25dBm, and the spectrum emission limit corresponding to the first link indicator can be greater than -25dBm.

[0157] Please refer to Table 8 for an example of the spectrum transmission templates included in the first link metrics.

[0158] Table 8

[0159] (2) Adjacent channel leakage power ratio.

[0160] The second link metric includes, for example, the adjacent channel leakage power ratio, which can be found in Table 9.

[0161] Table 9

[0162] Table 9 shows that the NR ACLR differs for different power categories. For example, the NR ACLR for power category 1 is 37 dB, the NR ACLR for power category 2 is 31 dB, and so on.

[0163] If the first link metric includes a spectrum emission template, the spectrum emission template included in the first link metric can be more lenient than the spectrum emission template included in the second link metric. For example, for the same power class, the NR ACLR corresponding to the first link metric can be greater than the NR ACLR corresponding to the second link metric. Alternatively, embodiments of this application introduce a first power class, and the NR ACLR corresponding to the first power class can be less than all the NR ACLRs in Table 9.

[0164] Please refer to Table 10 for an example of the adjacent channel leakage power ratio included in the first link metric.

[0165] Table 10

[0166] Table 10 uses a maximum transmit power of less than or equal to 10 dBm for the first power category as an example. If the maximum transmit power for the first power category is other values, such as less than 23 dBm, 26 dBm, or 29 dBm, then the NR ACLR for the first power category in Table 10 may also be different.

[0167] (3) Stray radiation.

[0168] The second link indicator includes, for example, stray radiation, which can be found in Table 11.

[0169] Table 11

[0170] [Correction 27.03.2025 according to Rule 91] In Table 11, for example, when the frequency range is greater than or equal to 9kHz and less than 150kHz and the measurement bandwidth is 1kHz, the maximum level of spurious radiation is -36dBm; for another example, when the frequency range is greater than or equal to 150kHz and less than 30MHz and the measurement bandwidth is 10kHz, the maximum level of spurious radiation is -36dBm, and so on.

[0171] If the first link metric includes spurious emissions, the spurious emissions included in the first link metric can be more lenient than those included in the second link metric. For example, with the same frequency range and measurement bandwidth, the maximum spurious emissions level corresponding to the first link metric can be greater than the maximum spurious emissions level corresponding to the second link metric. For example, the spurious emissions included in the first link metric satisfy one or more of the following: when the frequency range is greater than or equal to 9kHz and less than 150kHz, and the measurement bandwidth is 1kHz, the maximum spurious emissions level corresponding to the second link metric is -36dBm, while the maximum spurious emissions level corresponding to the first link metric can be greater than -36dBm; when the frequency range is greater than or equal to 150kHz and less than 30MHz, and the measurement bandwidth is 10kHz, the maximum spurious emissions level corresponding to the second link metric is -36dBm, while the maximum spurious emissions level corresponding to the first link metric can be greater than -36dBm; when the frequency range is greater than or equal to 30MHz and less than 1000MHz, and the measurement bandwidth is 100kHz, the spurious emissions level included in the second link metric can be more lenient than those included in the second link metric. The maximum spurious radiation level for the second link indicator is -36 dBm, while the maximum spurious radiation level for the first link indicator can be greater than -36 dBm; when the frequency range is greater than or equal to 1 GHz and less than 12.75 GHz, and the measurement bandwidth is 1 MHz, the maximum spurious radiation level for the second link indicator is -30 dBm, while the maximum spurious radiation level for the first link indicator can be greater than -30 dBm; when the frequency range is greater than or equal to 1 GHz and less than 12.75 GHz, and the measurement bandwidth is 1 MHz, the maximum spurious radiation level for the second link indicator is -25 dBm, while the maximum spurious radiation level for the first link indicator can be greater than -25 dBm; when the frequency range is greater than or equal to 12.75 GHz and less than 5 MHz, the maximum spurious radiation level for the second link indicator is -25 dBm, while the maximum spurious radiation level for the first link indicator can be greater than -25 dBm; when the frequency range is greater than or equal to 12.75 GHz and less than 5 MHz, the maximum spurious radiation level for the second link indicator is -30 ...30 dBm. th When the harmonic of the upper frequency edge of the UL operating band in GHz and the measurement bandwidth is 1MHz, the maximum level of spurious radiation corresponding to the second link indicator is -30dBm, while the maximum level of spurious radiation corresponding to the first link indicator can be greater than -30dBm; or, when the frequency range is greater than 12.75GHz and less than 26GHz and the measurement bandwidth is 1MHz, the maximum level of spurious radiation corresponding to the second link indicator is -30dBm, while the maximum level of spurious radiation corresponding to the first link indicator can be greater than -30dBm.

[0172] Please refer to Table 12 for an example of stray radiation included in the first link index.

[0173] Table 12

[0174] (4) Transmission intermodulation.

[0175] Second link metrics include, for example, transmit intermodulation, which can be found in Table 13.

[0176] Table 13

[0177] Table 6.5.2.4.1-1 represents the NR ACLR measurement bandwidth.

[0178] Table 6.5.2.4.1-1: NR ACLR measurement bandwidth

[0179] In Table 13, BW channel Indicates the channel bandwidth.

[0180] If the first link metric includes transmit intermodulation, the transmit intermodulation included in the first link metric can be less restrictive than that included in the second link metric. Transmit intermodulation includes multiple parameters, such as wanted signal channel bandwidth, interference signal frequency offset from channel center, interference CW signal level, intermodulation product, measurement bandwidth, and measurement offset from channel center. The transmit intermodulation included in the first link metric is less restrictive than that included in the second link metric. For example, at least one parameter included in the transmit intermodulation of the first link metric is less restrictive than the corresponding parameter included in the transmit intermodulation of the second link metric. For instance, the transmit intermodulation of the first link metric satisfies one or more of the following: the interference CW signal level included in the transmit intermodulation of the first link metric is less restrictive than the interference CW signal level included in the in-band spurious emissions of the second link metric; or, the intermodulation product included in the in-band spurious emissions of the first link metric is less restrictive than the intermodulation product included in the in-band spurious emissions of the second link metric.

[0181] In this context, the transmit intermodulation of the first link indicator includes a less restrictive CW signal level than the transmit intermodulation of the second link indicator. For example, the transmit intermodulation of the first link indicator includes a greater CW signal level than the transmit intermodulation of the second link indicator.

[0182] The intermodulation product included in the transmit intermodulation of the first link metric is less than that included in the transmit intermodulation of the second link metric. For example, when the out-of-band frequency offset is the same as the in-band frequency offset, the intermodulation product included in the transmit intermodulation of the first link metric is greater than that included in the transmit intermodulation of the second link metric.

[0183] Please refer to Table 14 for an example of transmit intermodulation included in the first link metrics.

[0184] Table 14

[0185] The first transmission parameter has been described above. The UE can determine the first transmission parameter, or determine whether to use the first or second transmission parameter, in different ways, as illustrated below.

[0186] As an optional implementation for the UE to determine the first transmission parameter, the UE determines the first transmission parameter itself. For example, the network device can transmit a downlink reference signal, and the UE can measure the downlink reference signal to determine the first parameter. The UE can then determine whether to use the first transmission parameter or the second transmission parameter based on the first parameter. The downlink reference signal may include, for example, a channel state information reference signal (CSI-RS), and / or, a synchronization signal and a physical broadcast channel (PBCH) block (SSB), or other downlink reference signals. The first parameter may include, for example, path loss and / or power headroom (PHR), or may also include other parameters that can be used to determine the transmission parameters.

[0187] For example, the first parameter includes path loss (PL), which is the downlink path loss between the UE and the network device measured by the UE based on the downlink reference signal. For instance, if the path loss is less than or equal to a third threshold, the first transmission parameter can be used; or, if the path loss is greater than the third threshold, the second transmission parameter can be used. If the path loss is small (e.g., less than or equal to the third threshold), it indicates that the large-scale loss between the UE and the network device is small or the channel conditions are good. In this case, the first transmission parameter can be considered because even if the uplink transmission power is low, the impact on signal transmission quality may be minimal due to the good channel conditions. Conversely, if the path loss is large (e.g., greater than or equal to the third threshold), it indicates that the large-scale loss between the UE and the network device is large or the channel conditions are poor. Therefore, the second transmission parameter can be considered to improve signal transmission quality through higher uplink transmission power. The third threshold can be predefined by the protocol, configured by the network device, or pre-configured in the UE.

[0188] For example, the first parameter includes a power margin, which can indicate the difference between a reference transmit power and a maximum transmit power. This maximum transmit power could be, for example, the first maximum transmit power or the second maximum transmit power described above.

[0189] The reference transmit power can be, for example, the transmit power corresponding to the uplink transmission steps already performed by the UE. For instance, if the UE performed an uplink transmission process before determining the first parameter, the reference transmit power could be the uplink transmit power used by the UE during that process. If the UE performed multiple uplink transmission processes before determining the first parameter, the reference transmit power could be the uplink transmit power of the UE's most recent uplink transmission process, or it could be the average uplink transmit power used by the UE over a period of time. Alternatively, the reference transmit power could be, for example, the uplink transmit power that the UE intends to use. For instance, if the UE did not perform an uplink transmission process before determining the first parameter, but the UE can determine an uplink transmit power that it might use if it performs an uplink transmission process in the future, then that uplink transmit power could also be used as the reference transmit power.

[0190] For example, if the power margin is greater than or equal to the second threshold, the first transmission parameter can be used; or, if the power margin is less than the second threshold, the second transmission parameter can be used. Alternatively, if the power margin is greater than the second threshold, the first transmission parameter can be used; or, if the power margin is less than or equal to the second threshold, the second transmission parameter can be used. If the power margin is large (e.g., greater than or equal to the second threshold), it indicates that the large-scale loss between the UE and the network device is small or the channel conditions are good, and the UE's uplink transmission does not need to use a large transmission power; in this case, the first transmission parameter can be considered. Conversely, if the power margin is small (e.g., less than or equal to the second threshold), it indicates that the large-scale loss between the UE and the network device is large or the channel conditions are poor; therefore, the second transmission parameter can be considered to improve signal transmission quality through higher uplink transmission power. The second threshold can be predefined by the protocol, configured by the network device, or pre-configured in the UE. Optionally, the second threshold may not be an existing power margin reporting threshold, but a separately configured threshold, such as a threshold configured or defined to trigger the power margin reporting of the first or second transmission parameter. Similarly, the other thresholds mentioned above (e.g., one or more of the first, third, or fourth thresholds) may also be configured or defined to determine the reporting of the first or second transmission parameter.

[0191] Optionally, if the UE determines itself to use either the first or second transmission parameters, the UE can send a fifth message to the network device. This fifth message indicates that the UE expects (or requests) to use either the first or second transmission parameters to send uplink signals. Based on the fifth message, the network device can determine whether the UE expects or requests to use the first or second transmission parameters to send uplink signals. Therefore, the network device can decide on the transmission parameters the UE should use based on the fifth message and / or other factors (such as network status). The transmission parameters decided by the network device may be the same as or different from the transmission parameters expected by the UE. The fifth information may be included, for example, in higher-layer signaling, such as radio resource control (RRC) signaling or media access control (MAC) control element (CE), for example, in a buffer state report (BSR); or, the fifth information may be included, for example, in physical layer signaling, such as carried through a physical uplink control channel (PUCCH), for example, in a schedule request (SR), or in a channel state information (CSI) report, or the fifth information may also be sent separately via physical layer signaling.

[0192] Optionally, the UE can periodically send a fifth message to the network device, allowing the UE and network device to periodically determine the transmission parameters the UE should use. Alternatively, the UE can also send a fifth message to the network device when a first condition is met. The first condition may include one or more of the following: the reference transmission power is less than or equal to a first threshold, or the power margin is greater than or equal to a second threshold, or the path loss is less than or equal to a third threshold, or the first distance is less than or equal to a fourth threshold. The first distance may indicate the distance between the UE and the network device. For information on parameters such as reference transmission power, power margin, and path loss, please refer to the preceding description. Optionally, if the first condition is met, it can be assumed that the UE expects or requests to use the first transmission parameter. For example, the UE typically uses the second transmission parameter in the traditional way; if the first condition is met, the UE may expect or request to use (or switch to) the first transmission parameter. Therefore, the first condition can also be understood as a condition for changing the transmission mode. Alternatively, because the UE may expect or request to use the first transmission parameter when the first condition is met, the first condition can also be understood as a condition for using or triggering the first transmission parameter.

[0193] As another optional implementation of the UE determining the first transmission parameter, the network device determines the first transmission parameter. As another optional implementation of the network device determining the first transmission parameter, the network device can determine the first transmission parameter based on an uplink reference signal. For example, the UE can transmit an uplink reference signal, the network device can measure the uplink reference signal to determine a second parameter, and the network device can determine whether to use the first or second transmission parameter based on the second parameter. The uplink reference signal may include, for example, SRS, or other uplink reference signals. The second parameter may include, for example, path loss, or may also include other parameters that can be used to determine the transmission parameter.

[0194] For example, the second parameter includes path loss, which the network device measures based on the uplink reference signal, for example, the uplink path loss between the UE and the network device. Optionally, the network device can know the UE's transmit power for the uplink reference signal, and the network device can also measure and determine the receive power of the uplink reference signal, so that the network device can determine the path loss based on the transmit power and the receive power. For example, the path loss is the difference between the transmit power and the receive power. Optionally, the UE's transmit power for the uplink reference signal can be determined by the network device, which can send fourth information to the UE, indicating the transmit power; upon receiving the fourth information, the UE can determine the transmit power, and thus the UE can use that transmit power to transmit the uplink reference signal. The fourth information sent by the network device is included, for example, in RRC signaling, MAC CE, or physical layer signaling. Alternatively, the UE can determine the transmit power for the uplink reference signal. The UE can send fourth information to the network device, which indicates the transmit power. Upon receiving the fourth information, the network device can determine the transmit power, and the UE will then use that transmit power to transmit the uplink reference signal. The fourth information sent by the UE may be included, for example, in RRC signaling, MAC CE, or physical layer signaling.

[0195] For example, if the path loss is less than or equal to the third threshold, the first transmission parameter can be used; or, if the path loss is greater than the third threshold, the second transmission parameter can be used. (See the previous section for more details.)

[0196] As another alternative implementation for the network device to determine the first transmission parameter, the network device can determine the first transmission parameter based on a first parameter, such as one obtained from the UE. For example, the UE can determine the first parameter (e.g., by measuring a downlink reference signal, as described above) and send it to the network device, allowing the network device to determine the first transmission parameter based on it. For a description of the content of the first parameter and how to determine the first transmission parameter based on it, please refer to the preceding text.

[0197] Optionally, the UE can send a fifth piece of information to the network device. This fifth piece of information may indicate the first parameter (as mentioned above, in this embodiment, the fifth piece of information may indicate that the UE expects or requests to send an uplink signal using the first or second transmission parameters, or indicate the first parameter). The network device can determine the first parameter based on the fifth piece of information, and thus the network device can decide on the transmission parameters that the UE should use based on the first parameter. For details on the signaling method used to send the fifth piece of information, please refer to the preceding text.

[0198] Optionally, the UE can periodically send the fifth information to the network device, allowing the UE and network device to periodically determine the transmission parameters the UE should use. Alternatively, the UE can also send the fifth information to the network device if the first condition is met. For details regarding the first condition, please refer to the preceding text.

[0199] Optionally, if the network device determines to use either the first or second transmission parameters, the network device may send third information to the UE, which may indicate whether to use the first or second transmission parameters to transmit the uplink signal. Based on the third information, the UE can determine whether to use the first or second transmission parameters to transmit the uplink signal, and thus the UE can transmit the uplink signal according to the transmission parameters indicated by the third information. The third information may be included, for example, in RRC signaling, MAC CE, or physical layer signaling.

[0200] S202, the UE sends a first uplink signal according to the first transmission parameters. Correspondingly, the network device receives the first uplink signal.

[0201] This embodiment of the application takes the UE using the first transmission parameters as an example. Therefore, the UE can send a first uplink signal according to the first transmission parameters. The network device has also determined that the UE is sending the first uplink signal using the first transmission parameters, and the network device can receive the first uplink signal.

[0202] Optionally, the UE can send a first uplink signal on the resource corresponding to the first transmission parameter according to the first transmission parameter, thus determining the resource corresponding to the first transmission parameter. As an optional implementation for the UE to determine the resource corresponding to the first transmission parameter, the UE can determine first information, which indicates the resource corresponding to the first transmission parameter. The UE can use this resource to send the first uplink signal. The first information indicates the resource corresponding to the first transmission parameter. For example, one indication method is configuration, i.e., the first information is used to configure the resource corresponding to the first transmission parameter, and this first information can also be called first configuration information; or, another indication method is scheduling, i.e., the first information is used to schedule the resource corresponding to the first transmission parameter. The first information is, for example, sent to the UE by the network device, i.e., the resource corresponding to the first transmission parameter is configured or scheduled by the network device. The first information is, for example, included in radio resource control (RRC) signaling, media access control (MAC) control element (CE), or physical layer signaling; or, the first information is, for example, information pre-configured within the UE, i.e., the resource corresponding to the first transmission parameter is pre-configured.

[0203] Additionally, if the UE determines to use the second transmission parameter, optionally, the UE can also send the corresponding uplink signal on the resource corresponding to the second transmission parameter according to the second transmission parameter. Therefore, the UE can also determine the resource corresponding to the second transmission parameter. As an optional implementation for the UE to determine the resource corresponding to the second transmission parameter, the UE can determine second information, which can indicate the resource corresponding to the second transmission parameter. The UE can use this resource to send uplink signals. The second information indicates the resource corresponding to the second transmission parameter. For example, one indication method is configuration, that is, the second information is used to configure the resource corresponding to the second transmission parameter, and this second information can also be called second configuration information; or, another indication method is scheduling, that is, the second information is used to schedule the resource corresponding to the second transmission parameter. The second information is, for example, sent to the UE by the network device, that is, the resource corresponding to the second transmission parameter is configured or scheduled by the network device, and the second information is, for example, included in RRC signaling, MAC CE, or physical layer signaling; or, the second information is, for example, information pre-configured in the UE, that is, the resource corresponding to the second transmission parameter is pre-configured.

[0204] The first information and the second information are independently configured or scheduled; "independent" means they can be configured to be the same or different. Specifically, the first information and the second information can be the same information, indicating both the resources corresponding to the first transmission parameter and the resources corresponding to the second transmission parameter; or they can be different information. If the first information originates from a network device, it can be included in RRC signaling, MAC CE, or physical layer signaling; similarly, if the second information originates from a network device, it can be included in RRC signaling, MAC CE, or physical layer signaling.

[0205] The following examples, using specific signals, illustrate the solutions of this application.

[0206] 1) The first uplink signal is the random access channel (RACH).

[0207] The first transmission parameter corresponds to a first RACH resource, and the second transmission parameter corresponds to a second RACH resource. The first RACH resource and the second RACH resource are different. The first RACH resource is, for example, a preamble resource, and the second RACH resource is, for example, a preamble resource. The preamble resource may include one or more of time-domain resources, frequency-domain resources, or code-domain resources. Optionally, the first RACH resource and the second RACH resource can be pre-configured resources. For example, the UE can determine the first RACH resource by combining pre-configured first information, and determine the second RACH resource by combining pre-configured second information.

[0208] Optionally, the UE can determine the transmission parameters itself. For example, the UE can determine the transmission mode based on the measured path loss by measuring the downlink reference signal. For details on how the UE determines the transmission mode based on path loss, please refer to the previous text.

[0209] If the UE determines to use the first transmission mode, the UE can use the first RACH resource corresponding to the first transmission mode to transmit uplink signals, which may include, for example, message 1 (Msg1) or message 3 (Msg3) in the random access procedure. Alternatively, if the UE determines to use the second transmission mode, the UE can use the second RACH resource corresponding to the second transmission mode to transmit uplink signals, which may include, for example, Msg1 or Msg3 in the random access procedure. Msg1 may include a random access channel (RACH) preamble, and Msg3 may be carried, for example, through the physical uplink shared channel (PUSCH).

[0210] 2) The first uplink signal is a dynamic indication or dynamic scheduling signal. The dynamic indication or scheduling signal is, for example, a signal indicated or scheduled via physical layer signaling.

[0211] As an optional implementation of the first uplink signal for dynamic indication or scheduling, the first uplink signal may be, for example, a dynamically scheduled PUSCH, or a dynamically triggered CSI or SRS. For instance, the network device may schedule the first uplink signal via the physical downlink control channel (PDCCH) of an uplink scheduling grant (e.g., uplink grant, UL grant), which is carried through the PUSCH. Optionally, the PUSCH may belong to a resource corresponding to a first transmission parameter. This resource can be configured using first information, and the network device may then schedule the corresponding resource for the UE from the resources corresponding to the first transmission parameter. Furthermore, the resource corresponding to a second transmission parameter can be configured using second information, and the network device may then schedule the corresponding resource for the UE from the resources corresponding to the second transmission parameter.

[0212] Optionally, the transmission parameters can be determined by the network device. For example, the network device can determine a first transmission parameter or a second transmission parameter based on an uplink reference signal from the UE, or the network device can determine the first transmission parameter or the second transmission parameter based on a first parameter from the UE. The network device can send third information to the UE to indicate the first transmission parameter or the second transmission parameter. The third information may be included, for example, in the PDCCH used for scheduling or triggering the first uplink signal. For example, the third information and the information used for scheduling or triggering the first uplink signal may be the same information carried in the PDCCH. In this case, the third information can be used to schedule or trigger the first uplink signal and can also indicate the first transmission parameter or the second transmission parameter. Alternatively, the third information and the information used for scheduling or triggering the first uplink signal may be different information, both of which are carried in the PDCCH. The UE can determine whether to use the first transmission parameter or the second transmission parameter based on the third information, so that the UE can transmit the uplink signal according to the first transmission parameter or the second transmission parameter. For example, the third information indicates the first transmission parameter, and the UE transmits the first uplink signal according to the first transmission parameter.

[0213] The PDCCH (such as the PDCCH carrying the aforementioned UL_grant) can carry third information in different ways. As an alternative implementation, existing fields in the PDCCH can be used to carry the third information. For example, one or more of the following existing fields in the PDCCH can be used to implement the third information: PUSCH resource allocation field, modulation and coding scheme (MCS) field, hybrid automatic repeat request (HARQ) process field, or power control field.

[0214] Alternatively, as another optional implementation of the PDCCH carrying third information, a new field can be added to the PDCCH to carry the third information. For example, a first field can be added to the PDCCH, which can occupy one or more bits and can carry the third information. The first field is also called a transmit mode indicator field or a transmit parameter indicator field, etc., and there is no limitation on the name.

[0215] As another alternative implementation of the first uplink signal for dynamic indication or scheduling, the first uplink signal may be, for example, a dynamically indicated or scheduled PUCCH, such as a HARQ-acknowledgment (ACK). For example, the network device may indicate the first uplink signal via a PDCCH of downlink scheduling allocation (e.g., downlink assignment, DL assignment) that is carried by the PUCCH.

[0216] Optionally, the transmission parameters can be determined by the network device. For example, the network device can determine the first or second transmission parameters based on the uplink reference signal from the UE, or the network device can determine the first or second transmission parameters based on the first parameters from the UE. The network device can send third information to the UE to indicate the first or second transmission parameters. The third information may be included, for example, in the PDCCH used for scheduling or triggering the first uplink signal. For example, the third information and the information used for scheduling or triggering may be the same information carried in the PDCCH. In this case, the third information can be used to schedule or trigger the first uplink signal and can also indicate the first or second transmission parameters. Alternatively, the third information and the information used for scheduling or triggering may be different information, both of which are carried in the PDCCH.

[0217] The PDCCH (such as the PDCCH carrying the aforementioned DL assignment) carries third information, and this can be implemented in different ways. As an optional implementation of carrying third information on the PDCCH, existing fields in the PDCCH can be used to carry the third information. For example, one or more of the following existing fields in the PDCCH can be used to implement the third information: PUCCH resource indication field, HARQ process field, or power control field. Taking carrying third information through the PUCCH resource indication field as an example, this PUCCH resource indication field can occupy 3 bits. For example, if the PUCCH resource indication field indicates four types of PUCCH resources, then 2 bits can be used to indicate these four types of PUCCH resources, and the other bit can be used as the third information. For example, 2 bits correspond to four values, or four states, which correspond to the four types of PUCCH resources; the other bit corresponds to two values, "0" and "1", or two states, which respectively indicate the first transmission parameter and the second transmission parameter. For example, the eight possible values ​​or states corresponding to these three bits can be divided into two groups, with each group containing four possible values ​​or states. Each group's four values ​​or states can indicate four types of PUCCH resources and can also indicate the first or second transmission parameter. For instance, "000", "100", "110", and "010" can form one group, called group A; "001", "011", "101", and "111" can form another group, called group B. Taking the example where the two most significant bits indicate PUCCH resources and the least significant bit indicates the first or second transmission mode.

[0218] For example, in group A, the two high-order "00" bits of "000" indicate PUCCH resource 1, and in group B, the two high-order "00" bits of "001" also indicate PUCCH resource 1. The low-order "0" bit in group A can indicate the first transmit parameter, and the low-order "1" bit in group B can indicate the second transmit parameter. Similarly, in group A, the two high-order "01" bits of "010" indicate PUCCH resource 2, and in group B, the two high-order "01" bits of "011" also indicate PUCCH resource 2. The low-order "0" bit in group A can indicate the first transmit parameter, and the low-order "1" bit in group B can indicate the second transmit parameter. In group A, the two high-order "10" bits of "100" indicate PUCCH resource 3, and the two high-order "10" bits of "101" in group B also indicate PUCCH resource 3. The low-order "0" bit in group A can indicate the first transmit parameter, and the low-order "1" bit in group B can indicate the second transmit parameter. In group A, the two high-order "11" bits of "110" indicate PUCCH resource 4, and the two high-order "11" bits of "111" in group B also indicate PUCCH resource 4. The low-order "0" bit in group A can indicate the first transmit parameter, and the low-order "1" bit in group B can indicate the second transmit parameter.

[0219] Alternatively, the PUCCH resource indication field can also indicate the first and second transmission parameters in other ways. For example, the three bits occupied by the PUCCH resource can be used as a whole to indicate the first or second transmission parameters through eight values ​​or eight states, without any restrictions.

[0220] Alternatively, as another optional implementation of the PDCCH carrying third information, a new field can be added to the PDCCH to carry the third information. For example, a second field can be added to the PDCCH, which can occupy one or more bits and can carry the third information. The second field can also be called a transmit mode indicator field or a transmit parameter indicator field, etc., and there is no limitation on the name.

[0221] 3) The first uplink signal is a semi-statically configured signal. This semi-static signal can be, for example, a signal configured via higher-layer signaling, such as RRC signaling or MAC CE.

[0222] Optionally, the first uplink signal may be a semi-statically configured scheduling request, CSI report, or SRS, etc. The first uplink signal is carried through a PUSCH, therefore it can also be considered a semi-statically configured PUSCH. For example, the network device configures the first uplink signal through higher-layer signaling such as RRC signaling or MAC CE. Optionally, this PUSCH may belong to the resource corresponding to the first transmission parameter. The resource corresponding to the first transmission parameter can be configured through the first information, and the network device then configures the corresponding resource for the UE from the resource corresponding to the first transmission parameter. Additionally, the resource corresponding to the second transmission parameter can be configured through the second information, and the network device then configures the corresponding resource for the UE from the resource corresponding to the second transmission parameter.

[0223] Optionally, the transmission parameters can be determined by the network device. For example, the network device can determine a first transmission parameter or a second transmission parameter based on an uplink reference signal from the UE, or the network device can determine the first transmission parameter or the second transmission parameter based on a first parameter from the UE. The network device can send third information to the UE to indicate the first transmission parameter or the second transmission parameter. The third information may be included, for example, in higher-layer signaling used to configure the first uplink signal. For example, the third information and the information used to configure the first uplink signal may be the same information, carried in the higher-layer signaling. In this case, the third information can be used to configure the first uplink signal and can also indicate the first transmission parameter or the second transmission parameter. Alternatively, the third information and the information used to configure the first uplink signal may be different information, both carried in the higher-layer signaling. The UE can determine whether to use the first transmission parameter or the second transmission parameter based on the third information, so that the UE can transmit the uplink signal according to the first transmission parameter or the second transmission parameter. For example, the third information indicates the first transmission parameter, and the UE transmits the first uplink signal according to the first transmission parameter.

[0224] The higher-layer signaling carrying third information can be implemented in different ways. As one optional implementation, existing fields in the higher-layer signaling can be used to carry the third information. Alternatively, as another optional implementation, a new field can be added to the higher-layer signaling to carry the third information. For example, a third field can be added to the higher-layer signaling; this third field may occupy one or more bits and can carry the third information. The third field may also be called a transmit mode indicator field or a transmit parameter indicator field, etc., and there is no limitation on the name.

[0225] In this embodiment, the UE can support multiple sets of transmission parameters, such as a first transmission parameter and a second transmission parameter. This allows the UE to select the appropriate transmission parameter from these multiple sets when transmitting a signal, ensuring that the selected parameter meets the requirements of the corresponding signal. Furthermore, the use of multiple transmission parameters makes the UE's transmission process more flexible. Additionally, this embodiment provides a first transmission mode. The first maximum transmission power and / or first transmission waveform corresponding to the first transmission mode can help reduce the power consumption of the power amplifier; the first transmission link and / or first link index corresponding to the first transmission mode can help reduce the power consumption of the transmission link. Therefore, the first transmission mode helps reduce the uplink transmission power consumption of the UE, enabling energy saving for the UE.

[0226] In this application, the embodiments are described using an uplink transmission scenario as an example. Therefore, the solution provided by this application can reduce the uplink transmission power consumption of the UE. However, this application can also be applied to other transmission scenarios, where the power consumption reduction is in the corresponding transmission direction. For example, this application can also be applied to sidelink (SL) transmission scenarios, where the solution provided by this application can reduce the sidelink transmission power consumption of the UE. The preceding text uses the uplink scenario as an example, specifically focusing on reducing the uplink transmission power consumption of the UE.

[0227] Figure 4 shows a schematic diagram of a communication device provided in an embodiment of this application. The communication device 400 can be the UE or its circuit system as described in the embodiment shown in Figure 2, used to implement the method corresponding to the UE in the above method embodiments. Alternatively, the communication device 400 can be the network device or its circuit system as described in the embodiment shown in Figure 2, used to implement the method corresponding to the network device in the above method embodiments. For example, one type of circuit system is a chip system.

[0228] The communication device 400 includes at least one processor 401. The processor 401 can be used for internal processing within the device to implement certain control processing functions. Optionally, the processor 401 includes instructions. Optionally, the processor 401 can store data. Optionally, different processors can be independent devices, located in different physical locations, or located on different integrated circuits. Optionally, different processors can be integrated into one or more processors, for example, integrated on one or more integrated circuits.

[0229] Optionally, the communication device 400 includes one or more memories 403 for storing instructions. Optionally, the memories 403 may also store data. The processor and the memories may be separate or integrated together.

[0230] Optionally, the communication device 400 includes a communication line 402 and at least one communication interface 404. Since the memory 403, communication line 402, and communication interface 404 are all optional, they are all represented by dashed lines in Figure 4.

[0231] Optionally, the communication device 400 may further include a transceiver and / or an antenna. The transceiver can be used to send information to or receive information from other devices. The transceiver may be referred to as a transceiver unit, transceiver circuit, input / output interface, etc., and is used to realize the transmission and reception functions of the communication device 400 via the antenna. Optionally, the transceiver includes a transmitter and a receiver. For example, the transmitter can be used to generate a radio frequency (RF) signal from a baseband signal, and the receiver can be used to convert the RF signal back into a baseband signal.

[0232] Processor 401 may include a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs according to the present application.

[0233] Communication line 402 may include a path for transmitting information between the aforementioned components.

[0234] Communication interface 404 uses any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), wired access network, etc.

[0235] Memory 403 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), 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 by a computer, but not limited thereto. Memory 403 may exist independently and be connected to processor 401 via communication line 402. Alternatively, memory 403 may be integrated with processor 401.

[0236] The memory 403 stores computer execution instructions for implementing the scheme of this application, and the processor 401 controls the execution of these instructions. The processor 401 executes the computer execution instructions stored in the memory 403 to implement the steps performed by the UE or network device in the embodiment shown in FIG2.

[0237] Optionally, the computer execution instructions in the embodiments of this application may also be referred to as application code, and the embodiments of this application do not specifically limit this.

[0238] In a specific implementation, as one example, processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG4.

[0239] In a specific implementation, as one embodiment, the communication device 400 may include multiple processors, such as processors 401 and 405 in FIG. 4. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. Here, a processor may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0240] When the device shown in Figure 4 is a chip, such as a UE chip or a network device chip, the chip includes a processor 401 (and may also include a processor 405), a communication line 402, and a communication interface 404. Optionally, it may include a memory 403. Specifically, the communication interface 404 may be an input interface, pins, or circuits, etc. The memory 403 may be a register, cache, etc. The processor 401 and processor 405 may be a general-purpose CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of a program that controls the communication method of any of the above embodiments.

[0241] This application embodiment can divide the device into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or software functional modules. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. For example, when dividing each functional module according to its own function, Figure 5 is a schematic diagram of a device. This device 500 can be the UE or network device involved in the above method embodiments, or a chip in the UE or a chip in the network device. The device 500 includes a processing unit 502 and a transceiver unit 501.

[0242] It should be understood that the device 500 can be used to implement the steps performed by the UE or network device in the communication method of the embodiments of this application. The relevant features can be referred to the embodiment shown in Figure 2 above, and will not be repeated here.

[0243] Optionally, the functions / implementation processes of the transceiver unit 501 and processing unit 502 in Figure 5 can be implemented by the processor 401 in Figure 4 calling computer execution instructions stored in memory 403. Alternatively, the functions / implementation processes of the processing unit 502 in Figure 5 can be implemented by the processor 401 in Figure 4 calling computer execution instructions stored in memory 403, and the functions / implementation processes of the transceiver unit 501 in Figure 5 can be implemented by the communication interface 404 in Figure 4.

[0244] Optionally, when the device 500 is a chip or circuit, the function / implementation process of the transceiver unit 501 can also be implemented through pins or circuits. Optionally, the transceiver unit 501 may include a transmitting unit and / or a receiving unit, whereby the transmitting unit implements the transmitting function and the receiving unit implements the receiving function; or, the transceiver unit 501 may be an integral module capable of implementing both transmitting and / or receiving functions. Optionally, the transceiver unit 501 can be implemented using a transceiver.

[0245] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the methods performed by the UE or network device in the aforementioned method embodiments. Thus, the functions described in the above embodiments can be implemented as software functional units and sold or used as independent products. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to it, or a 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, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0246] This application also provides a computer program product comprising: computer program code, which, when run on a computer, causes the computer to perform the method executed by the UE or network device in any of the foregoing method embodiments.

[0247] This application also provides a processing apparatus, including a processor and an interface; the processor is used to execute the methods performed by the UE or network device involved in any of the above method embodiments.

[0248] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0249] The various illustrative logic units and circuits described in the embodiments of this application can be implemented or operate the described functions using a general-purpose processor, digital signal processor (DSP), ASIC, field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor; alternatively, it can be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented using a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0250] The steps of the methods or algorithms described in the embodiments of this application can be directly embedded in hardware, software units executed by a processor, or a combination of both. The software units can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), EEPROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from the storage medium and write information to the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and storage medium can be disposed in an ASIC, which can be disposed in the terminal device. Optionally, the processor and storage medium can also be disposed in different components of the terminal device.

[0251] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0252] The contents of the various embodiments of this application can be referenced to each other. Unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0253] It is understood that in the embodiments of this application, the UE and / or network device may perform some or all of the steps in the embodiments of this application. These steps or operations are merely examples. In the embodiments of this application, other operations or variations of various operations may also be performed. Furthermore, the steps may be performed in different orders as presented in the embodiments of this application, and it is not necessary to perform all the operations in the embodiments of this application.

Claims

A communication method, characterized in that, The method includes: A first transmission parameter is determined, wherein the terminal supports the first transmission parameter and a second transmission parameter, wherein the first transmission parameter includes one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator, and the second transmission parameter includes one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator, wherein at least one of the first transmission parameters is different from at least one of the second transmission parameters. The first uplink signal is sent according to the first transmission parameters. The method according to claim 1, characterized in that, The first maximum transmit power is the maximum transmit power corresponding to the first power category. The maximum transmit power corresponding to the first power category is less than the maximum transmit power corresponding to the second power category. The first power category corresponds to the first transmit parameter, the second power category corresponds to the second transmit parameter, and the maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm. The method according to claim 2, characterized in that, The first maximum transmit power is 0dBm, 10dBm or 15dBm. The method according to claim 1, characterized in that, The first maximum transmit power is determined based on a first value and the maximum transmit power corresponding to the second power category, wherein the maximum transmit power corresponding to the second power category is 23dBm, 26dBm or 29dBm. The method according to any one of claims 1 to 4, characterized in that, The first transmitted waveform is a single-carrier frequency-domain equalized waveform; or, The first transmitted waveform is a single-carrier modulated symbol waveform; or, The first transmitted waveform is a minimum frequency shift keying (MSK) waveform; or, The first transmitted waveform is a Gaussian minimum frequency shift keying (GMSK) waveform. The method according to any one of claims 1 to 5, characterized in that, The power consumption of the first transmission link is lower than that of the second transmission link; and / or, The first transmission link includes fewer types of devices than the second transmission link. The method according to any one of claims 1 to 6, characterized in that, The first link metric imposes less limitation on the transmission link than the second link metric imposes on the transmission link. The method according to any one of claims 1 to 7, characterized in that, The method further includes: Determine first information, which is used to indicate the resources corresponding to the first transmission parameters, and the resources are used to transmit the first uplink signal; and / or, Determine the second information, which is used to indicate the resources corresponding to the second transmission parameters. The method according to any one of claims 1 to 8, characterized in that, The method further includes: Send uplink reference signal; Receive third information, which is used to indicate that an uplink signal is sent using the first transmission parameters. The method according to claim 9, characterized in that, Before sending the uplink reference signal, the method further includes: Receive fourth information, the fourth information being used to indicate the transmit power of the uplink reference signal; or, A fourth message is sent, which indicates the transmit power of the uplink reference signal. The method according to claim 9 or 10, characterized in that, The third information is also used to schedule the first uplink signal. The method according to any one of claims 1 to 8, characterized in that, The method further includes: Send a fifth message, which indicates that the terminal expects to send an uplink signal using the first transmission parameters, or the fifth message indicates the first parameter. The method according to claim 12, characterized in that, The first parameter includes path loss and / or power margin, the power margin being used to indicate the difference between the reference transmit power and the maximum transmit power. The method according to claim 12 or 13 is characterized in that, Send the fifth message, including: The fifth message is sent periodically; or, If the first condition is met, send the fifth message. The method according to claim 14, characterized in that, The first condition includes one or more of the following: The reference transmit power is less than or equal to the first threshold; or, The power margin is greater than or equal to the second threshold; or, Road loss is less than or equal to the third threshold; or, The first distance is less than or equal to the fourth threshold, whereby the first distance indicates the distance between the terminal and the network device. A communication method, characterized in that, The method includes: Send a third message, which corresponds to a first transmission parameter or a second transmission parameter. The first transmission parameter includes one or more of a first maximum transmission power, a first transmission waveform, a first transmission link, or a first link indicator. The second transmission parameter includes one or more of a second maximum transmission power, a second transmission waveform, a second transmission link, or a second link indicator. At least one of the first transmission parameters is different from at least one of the second transmission parameters. The receiving terminal sends a first uplink signal using the first transmission parameters or the second transmission parameters. The method according to claim 16, characterized in that, The first maximum transmit power is the maximum transmit power corresponding to the first power category. The maximum transmit power corresponding to the first power category is less than the maximum transmit power corresponding to the second power category. The first power category corresponds to the first transmit parameter, the second power category corresponds to the second transmit parameter, and the maximum transmit power corresponding to the second power category is 23dBm, 26dBm, or 29dBm. The method according to claim 17, characterized in that, The first maximum transmit power is 0dBm, 10dBm or 15dBm. The method according to claim 16, characterized in that, The first maximum transmit power is determined based on a first value and the maximum transmit power corresponding to the second power category, wherein the maximum transmit power corresponding to the second power category is 23dBm, 26dBm or 29dBm. The method according to any one of claims 16 to 19, characterized in that, The first transmitted waveform is a single-carrier frequency-domain equalized waveform; or, The first transmitted waveform is a single-carrier modulated symbol waveform; or, The first transmitted waveform is an MSK waveform; or, The first transmitted waveform is a GMSK waveform. The method according to any one of claims 16 to 20, characterized in that, The power consumption of the first transmission link is lower than that of the second transmission link; and / or, The first transmission link includes fewer types of devices than the second transmission link. The method according to any one of claims 16 to 21, characterized in that, The first link metric imposes less limitation on the transmission link than the second link metric imposes on the transmission link. The method according to any one of claims 16 to 22, characterized in that, The method further includes: Send first information, the first information being used to indicate the resources corresponding to the first transmission parameters, the resources being used to send the first uplink signal; and / or, Send a second message, which indicates the resource corresponding to the second transmission parameter. The method according to any one of claims 16 to 23, characterized in that, The method further includes: Receive the uplink reference signal. The method according to claim 24, characterized in that, Before receiving the uplink reference signal, the method further includes: Send a fourth message, the fourth message being used to indicate the transmit power of the uplink reference signal; or, Receive fourth information, which is used to indicate the transmit power of the uplink reference signal. The method according to any one of claims 16 to 23, characterized in that, The method further includes: The terminal receives a fifth message, which indicates that it expects to send an uplink signal using the first transmission parameters, or the fifth message indicates the first parameter. The method according to claim 26, characterized in that, The first parameter includes path loss and / or power margin, the power margin being used to indicate the difference between the reference transmit power and the maximum transmit power. A communication device, characterized in that, The communication device includes a module for performing the method as described in any one of claims 1 to 15, or a module for performing the method as described in any one of claims 16 to 27. A communication device, characterized in that, The communication device includes a processor, which is configured to perform the method as described in any one of claims 1 to 15, or the method as described in any one of claims 16 to 27. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the method as described in any one of claims 1 to 15 to be performed, or causes the method as described in any one of claims 16 to 27 to be performed. A computer program product, characterized in that, The computer program product includes a computer program that, when run on a computer, causes the computer to perform the method as described in any one of claims 1 to 15, or causes the computer to perform the method as described in any one of claims 16 to 27.

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