Communication method and apparatus

Abstract

The present application relates to the technical field of communications. Provided in the embodiments are a communication method and apparatus. In the method, a plurality of reference resource blocks and / or the sizes of a plurality of precoding physical resource groups are used to indicate the plurality of precoding physical resource groups, such that one terminal can perform communication on a plurality of frequency domain resources as required, and / or a plurality of terminals can use different physical resource groups in different bandwidth capabilities, thereby facilitating multi-user multiplexing and improving communication performance.

Description

Communication methods and devices

[0001] This application claims priority to Chinese Patent Application No. 202411855079.6, filed on December 13, 2024, entitled "Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, and more particularly to a communication method and apparatus. Background Technology

[0003] Two communication devices can transmit signals on configured resources by configuring and determining those resources. For example, a base station can send resource configuration information to a terminal via radio resource control (RRC) signaling. The terminal can then determine the corresponding physical resource group using this information. Thus, the terminal can use the resources of the physical resource group to transmit signals with the base station.

[0004] In related technologies, the resource configuration information set by the base station for each cell includes a common resource block (CRB) and a physical resource group size.

[0005] However, such a communication method may not be able to adapt to the needs of multiple frequency domain resources, resulting in poor communication quality. Summary of the Invention

[0006] This application provides a communication method and apparatus to adapt to the needs of multiple frequency domain resources, thereby improving communication performance.

[0007] In a first aspect, a communication method is provided, the method comprising: acquiring first information, the first information being used to determine multiple precoded physical resource groups in a unified carrier, the first information being used to indicate: N reference resource blocks, and / or the size of the N precoded physical resource groups, where N is an integer greater than 1; and transmitting the first information.

[0008] In one possible implementation, the method is performed by a first device or a chip in the first device.

[0009] In this way, the first device or the chip in the first device can obtain the size of multiple reference resource blocks and / or multiple precoded physical resource groups to determine the multiple precoded physical resource groups. The size of the multiple reference resource blocks and / or multiple precoded physical resource groups is beneficial to adapting to the needs of multiple frequency domain resources.

[0010] The communication method of this application embodiment indicates multiple precoded physical resource groups by using the size of multiple reference resource blocks and / or multiple precoded physical resource groups, which can adapt to various channel characteristics and thus improve communication performance.

[0011] For example, a unified carrier includes multiple frequency domain resources of one or more frequency bands.

[0012] In one possible implementation, the i-th reference resource block among N reference resource blocks can be indicated by any one or more of the following: the frequency domain position of the i-th reference resource block in the uniform carrier; a first frequency domain offset, which includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the uniform carrier; the frequency domain position of the starting reference resource block of the frequency band corresponding to the i-th reference resource block; a second frequency domain offset, which includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the frequency band corresponding to the i-th reference resource block; the frequency domain position of the starting reference resource block of the component carrier corresponding to the i-th reference resource block; and a third frequency domain offset, which includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the component carrier corresponding to the i-th reference resource block.

[0013] In this way, multiple precoded physical resource groups in multiple frequency domain resources (frequency bands or component carriers) can be indicated using different reference resource blocks and / or different sizes of precoded physical resource groups, which helps the terminal adapt to the channel characteristics of multiple frequency domain resources, thereby improving communication performance.

[0014] In addition, in some cases, multiple terminals support different bandwidth capabilities. By indicating multiple reference resource blocks and / or multiple precoded physical resource groups through the first information, it is helpful to achieve precoded physical resource group alignment, thereby promoting MU multiplexing by multiple terminals.

[0015] In one possible implementation, the first information is used to indicate multiple precoded physical resource groups in the bandwidth portion (BWP), the BWP including one of multiple BWPs corresponding to a uniform carrier.

[0016] Optionally, the j-th reference resource block among the N reference resource blocks indicated by the first information is indicated by any one or more of the following: the frequency domain offset between the j-th reference resource block and the starting reference resource block of the unified carrier; the position of the starting reference resource block of the BWP corresponding to the j-th reference resource block; and the frequency domain offset between the j-th reference resource block and the starting reference resource block of the BWP corresponding to the j-th reference resource block.

[0017] In this way, by using frequency domain resources based on BWP to indicate the reference resource blocks and / or the size of multiple precoded physical resource groups, it helps the terminal adapt to channel characteristics based on BWP.

[0018] In one possible implementation, the first message is also used to indicate the size of the first precoded physical resource group in the BWP.

[0019] This allows for a separate indication of the size of the first precoded physical resource group in the BWP, which helps to provide a more accurate indication of the precoded physical resource group and facilitates the alignment of multiple precoded physical resource groups.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the method of this application embodiment further includes: sending second information; the second information is used to indicate the size of M reference resource blocks and / or M precoded physical resource groups, where M is greater than N; and obtaining first information based on the second information.

[0021] For example, the second information is carried in system information or higher-level signaling, and / or the first information is carried in physical layer signaling.

[0022] For example, the first information is carried in system information or higher-level signaling.

[0023] In this way, the first device can send the first information and / or the second information to the second device through system information, higher-layer signaling or physical layer signaling, so as to ensure that the second device can effectively obtain the first information corresponding to multiple precoded physical resource groups.

[0024] In a second aspect, a communication method is provided, the method comprising: receiving first information, the first information being used to determine multiple precoded physical resource groups in a unified carrier, the first information being used to indicate: N reference resource blocks, and / or the size of the N precoded physical resource groups, where N is an integer greater than 1; and determining the multiple precoded physical resource groups according to the first information.

[0025] In one possible implementation, the method is performed by a second device or a chip within the second device.

[0026] In this way, based on the size of multiple reference resource blocks and / or multiple precoded physical resource groups, the second device or the chip in the second device can determine multiple precoded physical resource groups, which is beneficial to meeting the communication needs of multiple frequency domain resources.

[0027] For example, a unified carrier is used to support multiple frequency domain resources in one or more frequency bands.

[0028] In one possible implementation, for the m-th reference resource block among N reference resource blocks, the m-th reference resource block is determined based on first information by any one or more of the following: the frequency domain position of the m-th reference resource block in the unified carrier; a first frequency domain offset, which includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the unified carrier; the frequency domain position of the starting reference resource block of the frequency band corresponding to the m-th reference resource block; a second frequency domain offset, which includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the frequency band corresponding to the m-th reference resource block; the frequency domain position of the starting reference resource block of the component carrier corresponding to the m-th reference resource block; and a third frequency domain offset, which includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the component carrier corresponding to the m-th reference resource block.

[0029] In one possible implementation, the first information is used to indicate a plurality of precoded physical resource groups in a BWP, the BWP including one of a plurality of BWPs corresponding to a uniform carrier.

[0030] In one possible implementation, for the nth reference resource block among N reference resource blocks, the nth reference resource block is determined by any one or more of the following: the frequency domain offset between the nth reference resource block and the starting reference resource block of the unified carrier; the position of the starting reference resource block of the BWP corresponding to the nth reference resource block; and the frequency domain offset between the nth reference resource block and the starting reference resource block of the BWP corresponding to the nth reference resource block.

[0031] In one possible implementation, the first message is also used to indicate the size of the first precoded physical resource group in the BWP, and the first precoded physical resource group in the BWP is determined based on the size of the first precoded physical resource group.

[0032] In conjunction with the second aspect, in some implementations of the second aspect, the method of this application embodiment further includes: receiving second information; the second information is used to indicate the size of M reference resource blocks and / or M precoded physical resource groups, where M is greater than N; and determining a plurality of precoded physical resource groups based on the second information and the first information.

[0033] In one possible implementation, the first information is used to indicate the size of N candidate reference resource blocks and / or N precoded physical resource groups in the second information; multiple precoded physical resource groups are determined based on the size of the N reference resource blocks and / or N precoded physical resource groups.

[0034] In one possible implementation, the second information is carried in system information or higher-layer signaling, and / or the first information is carried in physical layer signaling.

[0035] In one possible implementation, the first information is carried in system information or higher-level signaling.

[0036] Thirdly, a communication device is provided. In one design, the device may include modules corresponding to the methods / operations / steps / actions described in the first aspect or any embodiment of the first aspect. These modules may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the device includes: a processing unit for acquiring first information; and a transceiver unit for transmitting the first information. Optionally, the processing unit may be a transceiver unit.

[0037] Fourthly, a communication device is provided. In one design, the device may include modules corresponding to the methods / operations / steps / actions described in the second aspect or any embodiment of the second aspect. These modules may be hardware circuits, software, or a combination of hardware circuits and software. In one design, the device includes: a transceiver unit for receiving first information; and a processing unit for determining a plurality of precoded physical resource groups based on the first information.

[0038] Fifthly, a communication device is provided, including a processor. The processor can implement the methods of the first or second aspect and any possible implementation thereof. Optionally, the communication device further includes a memory, and the processor is coupled to the memory and can be used to execute instructions in the memory to implement the methods of the first or second aspect and any possible implementation thereof. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiments of this application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interface, and is not limited thereto.

[0039] In one implementation, the communication device is a communication equipment (such as a terminal device or a network device). When the communication device is a communication equipment, the communication interface can be a transceiver, or an input / output interface.

[0040] In another implementation, the communication device is a chip configured within a communication device. When the communication device is a chip configured within a communication device, the communication interface can be an input / output interface.

[0041] Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0042] A sixth aspect provides a processor, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the methods described in the first or second aspect and any possible implementation thereof.

[0043] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver; the signal output by the output circuit can be output to, for example, but not limited to, a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0044] In a seventh aspect, a computer program product is provided, comprising: a computer program (also referred to as code or instructions) that, when run, causes a computer to perform the methods described in the first or second aspect and any possible implementation thereof.

[0045] Eighthly, a computer-readable storage medium is provided that stores a computer program (also referred to as code or instructions) that, when executed on a computer, causes the computer to perform the methods of the first or second aspect and any possible implementation thereof.

[0046] Ninth aspect, a chip system is provided, the chip system being applied to an electronic device, the chip system including one or more processors, the one or more processors being configured to invoke computer instructions to cause the electronic device to perform the methods of the first or second aspect and any possible implementation thereof.

[0047] A tenth aspect provides a communication system comprising at least one first device and at least one second device as described above. The first device is configured to perform the method described in the first aspect and any possible implementation thereof, and the second device is configured to perform the method described in the second aspect and any possible implementation thereof.

[0048] In some implementations, the first device includes a network device and the second device includes a terminal device.

[0049] It should be understood that the beneficial effects of the features corresponding to the first aspect in the second to tenth aspects can be referred to the relevant description of the first aspect above, and will not be repeated here. Attached Figure Description

[0050] Figure 1a is a schematic diagram of an architecture of a communication system provided in an embodiment of this application;

[0051] Figure 1b is a schematic diagram of another architecture of the communication system provided in an embodiment of this application;

[0052] Figure 1c is a schematic diagram of another architecture of the communication system provided in an embodiment of this application;

[0053] Figure 1d is a schematic diagram of another architecture of the communication system provided in an embodiment of this application;

[0054] Figure 1e is a schematic diagram of another architecture of the communication system provided in an embodiment of this application;

[0055] Figure 1f is a schematic diagram of another architecture of the communication system provided in an embodiment of this application;

[0056] Figure 1g is a schematic diagram of another architecture of the communication system provided in the embodiment of this application;

[0057] Figure 2a is a schematic diagram of a multi-terminal PRG alignment method;

[0058] Figure 2b is another schematic diagram of PRG alignment for multiple terminals;

[0059] Figure 3 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0060] Figure 4 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0061] Figure 5a is a schematic diagram of a PRG configuration provided in an embodiment of this application;

[0062] Figure 5b is a schematic diagram of another PRG configuration provided in an embodiment of this application;

[0063] Figure 5c is a schematic diagram of another PRG configuration provided in an embodiment of this application;

[0064] Figure 6a is a schematic diagram of a PRG configuration provided in an embodiment of this application;

[0065] Figure 6b is a schematic diagram of another PRG configuration provided in an embodiment of this application;

[0066] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0067] Figure 8 is a schematic diagram of another communication device provided in an embodiment of this application;

[0068] Figure 9 is a schematic diagram of another communication device provided in an embodiment of this application;

[0069] Figure 10 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0070] To facilitate understanding of the embodiments of this application, the following points are explained first:

[0071] (1) Terminal device: can be a wireless terminal device that can receive network device scheduling and instruction information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connection function, or other processing device connected to a wireless modem.

[0072] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), drone, etc. Terminal equipment can also be wearable devices and next-generation communication systems, such as terminal equipment in 5G communication systems or terminal equipment in future public land mobile networks (PLMNs).

[0073] Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, and integrated communication and sensing. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, sensors, etc. This application does not limit the specific technology or device form used in the terminal embodiments.

[0074] (2) Network equipment (or network element): This can be equipment in a wireless network. For example, network equipment can be a RAN node (or device) that connects terminal devices to the wireless network, and can also be called a base station. Currently, some examples of RAN equipment include: base station, evolved NodeB (eNodeB), gNB (gNodeB) in 5G communication systems, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), home base station (e.g., home evolved Node B, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP), etc. In addition, in a network structure, network equipment can include central unit (CU) nodes, distributed unit (DU) nodes, or RAN equipment including CU nodes and DU nodes.

[0075] Optionally, RAN nodes can also be macro base stations, micro base stations, indoor stations, relay nodes, donor nodes, or radio controllers in cloud radio access network (CRAN) scenarios. RAN nodes can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, the access network equipment in V2X technology can be a roadside unit (RSU).

[0076] Network devices and / or terminal devices can be fixed in location or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. This application does not limit the application scenarios of the network devices and / or terminal devices.

[0077] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs). CUs and DUs can be set up separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0078] 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 open access network (open RAN, O-RAN, or ORAN) system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, the embodiments of this application use CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in the embodiments of this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0079] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc. The physical layer may include a higher physical layer (higher PHY or PHY-high) and a lower physical layer (lower PHY or PHY-low). The functions of the higher physical layer include one or more of the following: forward error correction (FEC) encoding / decoding, scrambling / descrambling, or modulation / demodulation. The lower physical layer (PHY) functions and radio frequency (RF) functions include one or more of the following: fast Fourier transform (FFT) / inverse fast Fourier transform (IFFT), digital beamforming, or extraction and filtering of the physical random access channel (PRACH).

[0080] The correspondence between network elements and their achievable protocol layer functions in the ORAN system can be found in Table 1 below.

[0081] Table 1

[0082] Network devices can be other devices that provide wireless communication functions for terminal devices. This application does not limit the specific technology or form of the network device used.

[0083] Network equipment may also include core network equipment, such as the Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), and Public Data Network Gateway (PDN Gateway, P-GW) in 4th generation (4G) networks; and access and mobility management function (AMF), user plane function (UPF), or session management function (SMF) in 5G networks. Furthermore, this core network equipment may also include other core network equipment in 5G networks and next-generation networks of 5G networks.

[0084] In this application embodiment, the device for implementing the function of the network device can be the network device itself, or it can be a device capable of supporting the network device in implementing that function, such as a chip system, which can be installed in the network device. In the technical solutions provided in this application embodiment, the example of a network device being used to implement the function of the network device is used to describe the technical solutions provided in this application embodiment.

[0085] (3) Configuration, Determination, and Pre-configuration: In this embodiment, configuration and determination are used. Configuration refers to the network device sending configuration information or parameter values ​​of some parameters to the terminal device through messages or signaling. Determination is the terminal device obtaining communication parameters or transmission resources based on these values ​​or information. In addition, this embodiment also uses pre-configuration, which is similar to configuration. Pre-configuration can be parameter information or parameter values ​​negotiated in advance between the network device and the terminal device, parameter information or parameter values ​​used by the network device and / or the terminal device as specified by the standard protocol, or parameter information or parameter values ​​pre-stored in the network device and / or the terminal device. This embodiment does not limit this.

[0086] Optionally, configuration can also be understood as: instructions.

[0087] Furthermore, these values ​​and parameters can be changed, updated, or reconfigured.

[0088] (4) The terms "system" and "network" in the embodiments of this application can be used interchangeably. "At least one" means one or more, and "more" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "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 and C" includes A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, 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 order, sequence, priority or importance of multiple objects.

[0089] (5) In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly through the air interface or sending indirectly through the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY through the air interface or receiving indirectly from YY through the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0090] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0091] It is understood that information may undergo necessary processing, such as encoding and modulation, between the source and destination ends, but the destination end can understand the valid information from the source end. Similar statements in the embodiments of this application can be understood in a similar way, and will not be repeated here.

[0092] (6) In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (hereinafter referred to as instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol predefined) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. The embodiments of this application do not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.

[0093] In the embodiments of this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined to form new embodiments, implementation methods, methods, or implementation approaches based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of the embodiments of this application.

[0094] To facilitate understanding of the methods provided in the embodiments of this application, the system architecture of the methods provided in the embodiments of this application will be described below. It is understood that the system architecture described in the embodiments of this application is for the purpose of more clearly illustrating the solutions of the embodiments of this application and does not constitute a limitation on the solutions provided in the embodiments of this application.

[0095] In one possible implementation, embodiments of this application can be applied to Narrow Band Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Time Division-Synchronization Code Division Multiple Access (TD-SCDMA), Integrated Sensing and Communication (ISAC) systems, Wireless Local Area Networks (WLANs), Short-Range Wireless Communication Systems (such as sidelinks, Wireless Fidelity (Wi-Fi or WiFi), Bluetooth, etc.), Wired Networks, and Vehicle-to-Everything (V2X) systems. Everything, including V2X communication systems, device-to-device (D2D) communication systems, vehicle-to-everything (V2X) communication systems, 4th generation (4G) mobile communication systems (such as Long Term Evolution (LTE) systems), LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th generation (5G) mobile communication systems (such as New Radio (NR) systems), future evolved New Radio (NR) wireless communication systems, or other similar communication systems, is not restricted.For example, the embodiments of this application can be applied to orthogonal frequency division multiplexing (OFDM) systems in LTE, OFDM systems in NR, and future OFDM systems and OFDM-like systems. For example, the embodiments of this application can be applied to the three major application scenarios of next-generation 5G mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC), and / or enhanced machine-type communication (eMTC).

[0096] Please refer to Figure 1a, which is a schematic diagram of the architecture of the communication system applied in this application embodiment. As shown in Figure 1a, the communication system includes RAN 100 and core network 200. Optionally, the communication system may also include Internet 300. RAN 100 includes at least one RAN node (110a and 110b in Figure 1a, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 1a, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1a). Terminal 120 is wirelessly connected to RAN node 110, and RAN node 110 is connected to core network 200 wirelessly or via wired connection. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent and different physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN nodes. Terminals and RAN nodes can be interconnected via wired or wireless connections.

[0097] Figure 1b illustrates an example of an O-RAN system, which may include components other than those shown in the figure. As shown, access network equipment (such as RAN equipment, for example, an eNB, gNB, or next-generation access network equipment) communicates with the core network (CN) via a backhaul link and with the UE via an air interface.

[0098] In one possible implementation, the embodiments of this application can be applied to long-term evolution (LTE) wireless communication systems, NR wireless communication systems, and future NR wireless communication systems. For example, the embodiments of this application can be applied to orthogonal frequency division multiplexing (OFDM) systems in LTE, OFDM systems in NR, future OFDM systems, and OFDM-like systems.

[0099] As an example, the RAN node can be a satellite base station or a satellite, as illustrated below with reference to Figures 1c to 1g. Figures 1c and 1d are schematic diagrams of a communication system applicable to embodiments of this application.

[0100] As shown in Figures 1c and 1d, satellite base stations provide communication services to terminals. For example, a satellite base station transmits downlink data to a terminal, where the data is encoded using channel coding, and the channel-coded data is then transmitted to the terminal after constellation modulation. Similarly, a terminal transmits uplink data to a satellite base station, which can also be encoded using channel coding, and the encoded data is then transmitted to the satellite base station after constellation modulation. Furthermore, as shown in Figure 1d, satellite base stations can also communicate with terrestrial base stations; that is, a satellite can act as both a base station and a terminal.

[0101] In this application, the satellite can refer to a drone, a hot air balloon, a low-Earth orbit satellite, a medium-Earth orbit satellite, a high-Earth orbit satellite, etc. The satellite can also refer to a non-terrestrial base station or non-terrestrial equipment.

[0102] It should be understood that the embodiments of this application can be applied to scenarios of communication between network devices. The scenario shown in Figure 1d can also be regarded as an example of communication between network devices, in which both the satellite and the base station can be regarded as a network device.

[0103] As one implementation method, the embodiments of this application can be applied to an inter-satellite link communication system, such as the communication between satellite #1 and satellite #2 as shown in Figure 1d.

[0104] As shown in Figure 1e, the inter-satellite link communication system can be divided into two main parts: an acquisition pointing and tracking (APT) subsystem (including the APT module and APT transmitter / receiver) and a communication subsystem (including the communication module and transceiver antennas). The communication subsystem is primarily responsible for the transmission of inter-satellite information and forms the core of the inter-satellite communication system. The APT system is mainly responsible for acquisition, alignment, and tracking between satellites. Acquisition involves determining the direction of the incoming incident signal, while alignment involves adjusting the transmitted wave to aim at the receiving direction. Tracking involves continuously adjusting the APT for alignment and acquisition throughout the communication process. To minimize attenuation and interference in the channel while maintaining high security and transmission rate, the APT must be adjusted in real time to continuously adapt to changes.

[0105] It should be understood that current APT systems are all optical systems, which have the disadvantage of being difficult to align and requiring mechanical adjustment of the pointing. Most existing communication subsystems are optical communication systems, with some microwave band systems, and most use a single high-gain antenna. Existing APT systems and communication subsystems are independent systems. The disadvantages are that optical communication is susceptible to vibration and other factors, resulting in unstable data rates; millimeter-wave frequencies are low, communication capacity is low, and the antenna requires mechanical adjustment of its pointing.

[0106] As another implementation, the embodiments of this application can be applied to scenarios where terminal devices communicate with each other, such as Internet of Things (IoT) communication systems.

[0107] Figure 1f is a schematic diagram of a wireless screen projection method applicable to an embodiment of this application. A terminal device (e.g., a smartphone) establishes a network connection with a television. The smartphone transmits the content to be projected onto the television to the television. After receiving the content transmitted by the smartphone, the television displays the content on its screen.

[0108] It should be understood that the screen projection scenario shown in Figure 1f can be regarded as an example of communication between terminal devices, where both smartphones and televisions can be regarded as terminal devices.

[0109] As another implementation method, the embodiments of this application can be applied to integrated access and backhaul (IAB) systems.

[0110] Figure 1g is a schematic diagram of an IAB system applicable to an embodiment of this application. As shown in Figure 1g, an IAB may include an IAB donor, an IAB node, and a terminal. The link between the IAB donor and the IAB node is a backhaul link, and the link between the terminal and the IAB node is an access link. This embodiment of the application can be applied to both communicating parties in a backhaul link or to both communicating parties in an access link.

[0111] It should be understood that the above system application scenarios are merely examples, and the embodiments of this application can also be applied to other scenarios, which will not be listed here.

[0112] To better understand the methods provided in the embodiments of this application, the terms involved in the embodiments of this application will be briefly explained below.

[0113] 1. Frequency domain resources

[0114] Resource element (RE): It is the smallest granular physical layer resource in 5G NR, which is one subcarrier in the frequency domain and one OFDM symbol in the time domain.

[0115] A resource block (RB) is the basic unit of channel resource allocation in the frequency domain in 5G NR, and it can contain 12 subcarriers. The subcarrier spacing in 5G NR is variable, so the actual bandwidth of an RB is also variable.

[0116] A physical resource block (PRB) refers to the RBs contained in the bandwidth part (BWP) of a UE in 5G NR. They are also numbered starting from 0 and are the basic unit of data channel scheduling.

[0117] Alternatively, a physical resource block can also be simply referred to as a resource block.

[0118] Reference Resource Block (Reference RB): This can be a collective term for RBs within a physical resource group. It can also refer to a common resource block (CRB), which can be understood as a collective term for all RBs in 5G NR. Reference resource blocks are numbered starting from 0. Reference resource block number 0 can be represented as reference RB0. The center frequency point of subcarrier number 0 (the first subcarrier) in reference RB0 is also called point A, or reference point A, reference position, and is sometimes commonly described as CRB0, reference subcarrier 0, etc.

[0119] A precoding resource block group (PRG), also known as physical resource block bundling (PRB bundling), precoding granularity, precoding resource block group granularity, physical resource block bundling granularity, or precoding physical resource group, refers to resources that use the same precoding. It can be granularized at the resource block level and includes one or more resource blocks. For example, RBs within the same PRG share the same precoding, allowing the terminal to perform joint channel estimation within the same PRG's RBs. The frequency domain starting position of the PRG can be indicated by reference RB0, and the PRG can be partitioned using the reference RB number.

[0120] Precoding Resource Block Group Size (PRG size): Also known as Physical Resource Block Bundle Size (PRB bundle size), PRG granularity, or precoding granularity. For example, in NR, a BWP can be configured with a PRG size or PRB bundle size of 1, 2, or 4, representing the full bandwidth of RBs. PRG granularity can be semi-static (e.g., configured with higher-layer signaling) or dynamic (e.g., configured with at least two higher-layer signaling parameters, and physical layer signaling indicating one of them).

[0121] Optionally, in this implementation, if the first communication device is a network device, it can configure the PRG size to the terminal device through higher-layer signaling, such as RRC signaling or medium access control (MAC CE). If the first communication device is a terminal device, it can determine the PRG size through this higher-layer signaling, such as RRC signaling or MAC CE. The specific configuration signaling can be as follows:

[0122] Where n4 represents 4 RBs, n2 represents 2 RBs, and so on, and wideband means that the size of the precoding resource block group is the same as the communication bandwidth.

[0123] A Broadband Resource Plan (BWP) is a sub-bandwidth of the total cell bandwidth, configurable according to the terminal's requirements. A carrier can contain multiple BWPs, each with different subcarrier spacing, bandwidth, and other parameters. The base station can indicate the BWP identifier (ID) to the terminal via downlink control information (DCI). This allows the network to adapt more flexibly to different application scenarios and device capabilities. For example, in 5G NR, a cell can have a maximum of four BWPs. This flexibility allows the network to allocate appropriate bandwidth portions based on the needs and capabilities of different UEs; for instance, a UE requiring high data rates can be allocated a wider BWP, while a UE requiring only low data rates can be allocated a narrower one.

[0124] Physical resource group: is a combination of physical resources (such as RB, RE), such as PRB, PRG, carrier, BWP.

[0125] The above definition of frequency domain resources is applicable to 5G NR. The same or different definitions may be used in future networks. For example, future networks may define multiple subcarriers and use different subcarrier intervals; this application does not impose such limitations.

[0126] 2. Communication channel

[0127] The Physical Reception Link Control Channel (PRxCCH) is a physical layer control channel. Standard protocols can describe it from the perspective of the terminal device; it's the physical layer control channel received by the terminal device, similar in function to the Physical Downlink Control Channel (PDCCH) in LTE and 5G. PRxCCH may be a new physical layer control channel introduced in next-generation communication systems (such as 6G). However, 6G may still use PDCCH to represent the physical downlink control channel or physical transmit link control channel of the terminal device.

[0128] The Physical Reception Link Shared Channel (PRxSCH) is a physical layer data channel. Standard protocols can describe it from the perspective of the terminal device; it's the physical layer data channel received by the terminal device, similar in function to the Physical Downlink Shared Channel (PDSCH) in LTE and 5G. PRxSCH may be a physical layer data channel newly introduced in 6G. Of course, future communications such as 6G may still use PDSCH to represent the physical downlink data channel or physical reception link data channel of the terminal device.

[0129] The Physical Transmission Link Control Channel (PTxCCH) is a physical layer control channel. Standard protocols can describe it from the perspective of the terminal device; it's the physical layer control channel transmitted by the terminal device, similar in function to the Physical Uplink Control Channel (PUCCH) in LTE and 5G. PTxCCH may be a new physical layer control channel introduced in 6G. Of course, future communications such as 6G may still use PUCCH to represent the physical uplink control channel or physical transmission link control channel of the terminal device.

[0130] The Physical Transmission Link Shared Channel (PTxSCH) is a physical layer data channel. Standard protocols can describe it from the perspective of the terminal device; it's the physical layer data channel transmitted by the terminal device, functionally similar to the Physical Uplink Shared Channel (PUSCH) in LTE and 5G. PTxSCH may be a physical layer data channel newly introduced in 6G. Of course, future communications such as 6G may still use PUSCH to represent the physical uplink data channel or physical receive link data channel of the terminal device.

[0131] Optionally, from the perspective of the terminal device, downlink can be described as receiving; and from the perspective of the terminal device, uplink can be described as transmitting.

[0132] Currently, during communication between different communication devices, the data sender can send data through a data channel, and correspondingly, the data receiver can receive data through a data channel to realize the data transmission process.

[0133] Data transmission between two communication devices requires specific physical resources. The communication devices send, receive, and process data on these specific physical resources. The specific physical resources used are determined through their configuration and allocation.

[0134] Taking base stations and terminals in a wireless communication network as an example, the physical resources used for data transmission between base stations and terminals can be physical resource groups (PRGs). Resource configuration information can be used to indicate physical resource groups. For example, the resource configuration information corresponding to a PRG can include a CRB0 and a granularity, where CRB0 indicates the frequency domain start position of the PRG, and the granularity indicates the size of the PRG.

[0135] The base station can send resource configuration information to the terminal via RRC signaling or MAC CE. The terminal can then determine the corresponding PRG based on CRB0 and granularity. Thus, the terminal can use the physical resources corresponding to the PRG to transmit signals with the base station.

[0136] For example, the base station configures a carrier based on subcarrier spacing (SCS-specific carrier) through RRC signaling. One cell corresponds to one CRB0, so different SCS-specific carriers in the cell correspond to the same CRB0.

[0137] Additionally, the base station can use DCI to indicate the BWP identifier (ID) corresponding to a terminal, as well as which frequency domain resources are used in that BWP. Multiple terminals use a unified PRG resource to achieve MU multiplexing. The PRG is divided using the CRB number as a reference, and there is only one PRG granularity within a BWP.

[0138] Multiple terminals within a cell may possess different bandwidth capabilities. Bandwidth capability refers to a device's ability to communicate on specific physical resources such as frequency bands, carriers, and PRGs. When terminals and network devices communicate on different physical resources, channel characteristics differ. For example, the frequency offset, signal distortion, signal attenuation, or path interference corresponding to RBs in different frequency bands may vary. For instance, different frequency bands may have different frequency domain correlations, different coherence bandwidths, or different large-scale channel characteristics, such as time domain spread, angular spread, and Doppler spread. However, since a cell has only one CRB0 and one granularity, all terminals in that cell are configured with the same CRB0 and the same granularity for their corresponding PRGs. Having only one CRB0 and one granularity cannot adapt to the channel characteristics of different frequency domain resources, and / or cannot support scenarios where multiple terminals possess different bandwidth capabilities.

[0139] For example, if a terminal in a cell can use multiple carriers for communication, but the PRG is still configured with the same CRB0 and granularity, then the granularity of the PRG cannot adapt to the channel characteristics of multiple carriers, and / or, when multiple terminals are configured with different frequency domain resources for communication, if the interference between RBs in the PRG is inconsistent on the overlapping frequency domain resources, it will affect the channel estimation effect of multiple terminals, thereby affecting the communication performance.

[0140] For example, in Figure 2a, terminal 1 uses PRG1, which corresponds to a carrier with a subcarrier spacing of 15kHz and contains 2 RBs. Terminal 2 uses PRG2, which corresponds to a carrier with a subcarrier spacing of 30kHz and contains 4 RBs. Because the RBs of PRG1 in terminal 1 and PRG2 in terminal 2 are not aligned, that is, PRG1 and PRG2 cannot be aligned, the interference between RBs will change when terminals 1 and 2 perform joint channel estimation, affecting the accuracy of joint channel estimation and thus affecting communication performance.

[0141] In view of this, embodiments of this application provide a communication method that, by configuring information of multiple physical resource groups, enables a terminal to communicate on demand on multiple frequency domain resources, and / or allows multiple terminals to use different physical resource groups under different bandwidth capabilities, thereby facilitating MU multiplexing and improving communication performance.

[0142] In the communication method provided in this application, multiple physical resource groups can correspond to a single uni-carrier. A uni-carrier can also be called a frequency domain resource set. A frequency domain resource set refers to a collection including one or more frequency domain resources, which can support communication of a cell on at least one frequency band or carrier's frequency domain resources. That is, a frequency domain resource set includes one or more carriers within the same frequency band, or multiple carriers within multiple frequency bands. A frequency domain resource may include one or more component carriers (CCs), in which case a frequency domain resource set may include one or more carriers. A carrier may include one or more component carriers (BWPs), in which case a frequency domain resource set may include one or more BWPs. It is understood that a frequency domain resource set can also be called a joint carrier (uni-carrier), a unified carrier, or other possible names, which will not be elaborated further.

[0143] Optionally, a frequency domain resource may include one or more resource blocks (RBs), and a frequency domain resource may also be referred to as a resource segment, resource sub-segment, or frequency domain segment, etc.

[0144] Optionally, the frequency band in this application can be the operating band defined by the NR protocol in the prior art, or it can be a portion of the frequency domain resources within the operating band. A frequency band can refer to a segment of frequency domain resources, which may include continuous resources or discontinuous resources.

[0145] Alternatively, a component carrier can also be described as: component carrier, carrier component, or carrier, etc.

[0146] A uni-carrier can correspond to a CC group, which includes one or more CCs. Multiple CCs within a uni-carrier can be viewed as a virtual single-component carrier (or a logical single CC), such as sharing a radio frequency channel, and / or performing a large-scale FFT operation during signal transmission. For example, a base station can be configured with three uni-carriers: uni-carrier0, uni-carrier1, and uni-carrier2.

[0147] Alternatively, CCs can be divided / configured according to their frequency band or frequency domain range. For example, multiple CCs in frequency range 1 (FR1) can form a uni-carrier, multiple CCs in frequency range 2 (FR2) can form a uni-carrier, and multiple CCs in FR3 can form a uni-carrier.

[0148] Furthermore, optionally, the multiple CCs of the UE may include anchor CCs and capacity CCs. The anchor CC, also known as the coverage CC, is the carrier component that guarantees the basic coverage performance of the UE and may include at least one of the following functions: camping, receiving paging / LP-WUS (transmitting UL WUS), etc. The capacity CC may include communication functions, such as sending and receiving service data.

[0149] Optionally, the anchor CC and capacity CC for a terminal can come from one base station or from multiple base stations.

[0150] Optionally, multiple CCs in a uni-carrier can be co-located or non-co-located.

[0151] Optionally, a uni-carrier may include a downlink (DL) uni-carrier and an uplink (UL) uni-carrier. Alternatively, a uni-carrier may include either a DL resource or a UL resource.

[0152] Optionally, a uni-carrier may include a sending uni-carrier and a receiving uni-carrier. Alternatively, a uni-carrier may include either a sending resource or a receiving resource.

[0153] The method provided in this application allows for configuring different reference RB0s and / or different granularities for different frequency domain resources when configuring a Physical Resource Group (PRG). For example, different reference RB0s and / or different granularities can be configured for different frequency bands or different carriers in a uni-carrier. This allows the terminal to use different reference RB0s and / or different granularities for different frequency domain resources, which helps adapt to different channel characteristics and enables the terminal to communicate on demand across multiple frequency domain resources.

[0154] For multiple terminals with different bandwidth capabilities, it may be possible to align the PRGs. In this way, since the RBs in a PRG use the same precoding, aligning the PRGs of multiple terminals can improve the accuracy of channel estimation through joint channel estimation, thereby improving communication performance.

[0155] For example, referring to FIG2b, terminal 1 supports frequency domain resource 1, terminal 2 supports frequency domain resource 2, and terminal 3 supports both frequency domain resource 1 and frequency domain resource 2. Different frequency domain resources can be configured with different reference RB0s. For example, frequency domain resource 1 can be configured with reference RB0 as a first reference RB0 (reference RB0-1), and frequency domain resource 2 can be configured with reference RB0 as a second reference RB0 (reference RB0-2). Different frequency domain resources can be configured with different PRG granularities. For example, frequency domain resource 1 can be configured with granularity P1, and frequency domain resource 2 can be configured with granularity P2. The PRGs in frequency domain resource 1 corresponding to terminal 3 and terminal 1 use the same reference RB0 and granularity, thus aligning the PRGs of terminal 3 and terminal 1 in frequency domain resource 1. The PRGs in frequency domain resource 2 corresponding to terminal 2 and terminal 1 use the same reference RB0 and granularity, thus aligning the PRGs of terminal 2 and terminal 3 in frequency domain resource 2. This allows terminal 1 and terminal 3 to reuse MU in frequency domain resource 1, and terminal 2 and terminal 3 to reuse MU in frequency domain resource 2.

[0156] For example, terminal 3 in Figure 2b supports frequency domain resource 1 and frequency domain resource 2. Different frequency domain resources can be configured with different PRG granularities. For example, frequency domain resource 1 can be configured with granularity P1, and frequency domain resource 2 can be configured with granularity P2. In this way, a terminal can adapt to the channel characteristics on different frequency domain resources and communicate on demand on multiple frequency domain resources.

[0157] Thus, the method of this application embodiment can adapt the channel characteristics of multiple frequency domain resources and / or the multi-bandwidth capability of the terminal through resource configuration. Through the configuration of PRG, the corresponding MU interference and channel estimation can be obtained more accurately, and MU multiplexing can be realized, thereby improving communication performance.

[0158] The communication method of the embodiments of this application will be described in detail below. Referring to Figure 3, the communication method provided by the embodiments of this application is illustrated from the perspective of device interaction. The specific form and number of the devices shown are merely examples and should not constitute any limitation on the implementation of the method provided in this application.

[0159] The communication method of this application embodiment will be described in detail below, taking the first device and the second device as the execution subjects.

[0160] In the embodiments of this application, the first and second devices for information interaction can be network devices and network devices, network devices and terminal devices, or terminal devices and terminal devices. For example, in a wireless access network, the first device can be a base station, and the second base station can be a terminal, or the first device can be a first base station, and the second device can be a second base station. For instance, as shown in Figure 1a, the first device is RAN node 110a, and the second device is terminals 120a-120c; or, the first device is RAN node 110b, and the second device is terminals 120f-120g; or, the first device is RAN node 110a, and the second device is RAN node 110b. In an O-RAN system, the first device can be a control unit, distributed unit, or radio frequency unit in the access network, and the second device can be a terminal device. In a satellite communication network, as shown in Figures 1c-1d, the first device can be a satellite base station or a satellite, and the second device can be a terminal device or a ground base station; or, the first device can be satellite base station 1, and the second device can be satellite base station 2. In an Internet of Things (IoT) communication system, as shown in Figure 1f, the first device can be a television set and the second device can be a terminal, or the first device can be a terminal and the second device can be a television set. In an IAB system, as shown in Figure 1g, the first device can be an IAB parent node and the second device can be an IAB node, or the first device can be an IAB node and the second device can be a terminal.

[0161] For ease of understanding, this application describes an example of a precoded physical resource group (PRG) used for communication between a first device and a second device.

[0162] The method shown in Figure 3 may include steps 301 to 303, which are described in detail below.

[0163] S301, The first device acquires the first information.

[0164] The process of obtaining the first information can also be described as generating the first information, or determining the first information, etc.

[0165] The first information is used to determine the multiple precoded physical resource groups in the uni-carrier. The first information is used to indicate: N reference resource blocks and / or the size of the N precoded physical resource groups, where N is an integer greater than 1.

[0166] In one implementation of this application, a uni-carrier may include multiple frequency domain resources of one or more frequency bands. First information is used to determine multiple PRGs within the uni-carrier. Multiple PRGs belong to one uni-carrier, one or more carriers, one or more frequency bands, one or more frequency domain resources, or one or more BWPs. In some cases, the first information may be called resource configuration information, used by the first device to indicate the precoded physical resource group (PRG) to be used by the second device. Any PRG can be indicated by a reference resource block and / or the size of the PRG. The reference resource block can indicate the frequency domain start position of the PRG, and the size of the PRG can indicate the size or quantity of physical resources corresponding to the PRG. In this application embodiment, the first device can indicate multiple PRGs to the second device.

[0167] Optionally, a reference resource block may refer to at least one of the following: reference RB0, subcarrier 0 of reference RB0, reference subcarrier 0, or the center frequency of subcarrier 0 of reference RB0.

[0168] This application uses RB0 as an example to illustrate the concept; other cases are similar and will not be repeated here.

[0169] The first information contains N reference RB0s and / or the sizes of N PRGs. The relationship between the reference RB0s and the PRGs can be one-to-one, such as the pairing of the sizes (P) of the N reference RB0s and PRGs: {(0th reference RB0, P0), (1st reference RB0, P1), ..., (Nth reference RB0, PN)}. It can also be a one-to-many relationship, such as a P value and a set of reference RB0s: {(0th reference RB0, 1st reference RB0, ..., Nth reference RB0), P}, where the N PRGs have the same size, P. It can also be a many-to-one relationship, such as a reference RB and a set of P values: {reference RB0, (P0, P1, ..., PN)}, where the N PRGs have the same reference RB0. Or it can be a many-to-many relationship, such as {(0th reference RB0, 1st reference RB0, ..., Nth reference RB0), (P0, P1, ..., PN)}. The ability to obtain the sizes of N reference RB0 and / or N PRGs directly or indirectly through splitting, combining, parsing, etc., can be understood as the first piece of information used to indicate the sizes of the N reference RB0 and / or N PRGs.

[0170] The embodiments of this application are described in the form of {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), ..., (xth reference RB0, Px)}. It should be understood that this form of expression is only for the purpose of more clearly expressing the quantity and correlation between the sizes of reference RB0 and PRG, and does not constitute a constraint on the communication method provided in the embodiments of this application.

[0171] Optionally, the granularity of the PRG in this application can be 1, 2, 3, 4, 6, or P RBs, where P is a positive integer.

[0172] In this way, multiple PRGs can be indicated by the first information. Different PRGs can be adapted to the channel characteristics of different frequency domain resources of a uni-carrier, and / or the different bandwidth capabilities of multiple users. This enables accurate channel estimation, and / or PRG alignment for multiple users, achieving MU multiplexing and improving communication performance.

[0173] In this embodiment, the first device obtains the first information by generating / obtaining / determining one or more of the following: network planning, cell configuration, frequency allocation, channel state information, terminal quality of service (QoS) requirements, network load and congestion status, terminal capabilities and characteristics, user priority and subscription information, service data and predictions, and location and mobility information. For example, a base station may have a configuration table of frequency domain resources and reference RB0, and / or the size of frequency domain resources and PRG. For multiple terminals in a cell, the corresponding reference RB0 and / or the size of the PRG are obtained based on the frequency domain resources used by the terminal. For example, frequency domain resources may correspond to frequency bands.

[0174] Alternatively, the first device may acquire the first information by receiving instructions from other network devices. For example, it may acquire an instruction from a core network device and use that instruction as the first information. Other network devices can acquire instruction information in the same way as the first device acquires the first information, which will not be elaborated here.

[0175] This allows for unified configuration of resources for multiple users, improving resource utilization.

[0176] A detailed description of the size of references RB0 and PRG included in the first information will be provided in subsequent embodiments and will not be repeated here.

[0177] S302, the first device sends first information to the second device. Correspondingly, the second device receives the first information sent by the first device.

[0178] The first device can send the first information to the second device through signaling messages or information data, such as by carrying the first information in system information, higher-level signaling, and / or physical layer signaling.

[0179] For example, system information includes a master information block (MIB) and a system information block (SIB). The MIB is the first information decoded by the terminal device when accessing the network, providing information such as system bandwidth, system frame number (SFN), and physical HARQ indicator channel (PHICH) configuration information. The SIB includes one or more of SIB1, SIB2, SIB3, or SIBxx, where xx is a positive integer. SIB1 is the first SIB decoded by the terminal device after receiving the MIB, containing cell access-related information such as cell identifier, Public Land Mobile Network (PLMN) identifier, access control information, and time information. SIB2 provides parameters required for RRC connection establishment, such as random access channel configuration, uplink power control parameters, and scheduling information. SIB3 contains cell reselection parameters to help the terminal select a suitable cell when moving. SIB4 and subsequent SIBs may include neighbor cell information, location service information, earthquake and tsunami warning system information, commercial mobile alert system information, etc. For example, higher-layer signaling includes RRC signaling, non-access stratum (NAS) signaling, session management and resource allocation signaling, and application layer signaling. RRC signaling may further include UE-specific (dedicated) RRC signaling and common RRC signaling. The MAC CE is a structural unit in the MAC layer of a wireless communication system used to transmit control information. The MAC CE can carry various control information in the MAC layer data unit (PDU) to support the management and scheduling of radio resources, including one or more of the following: power control commands, scheduling requests, buffer status reports, priority indications, discontinuous reception (DRX) commands, and fast retransmission indications. Physical layer signaling can be one or more of the following sent in the physical communication channel: synchronization signal, cell-specific reference signal (CRS), demodulation reference signal (DMRS), link control information such as resource scheduling and transmission format indication, channel state information reference signal (CSI-RS), DCI, random access information, etc.

[0180] For example, the first device can send first information to the second device via higher-layer signaling, such as sending the size of the PRG via RRC signaling or MAC CE. Specific configuration signaling can be as follows:

[0181] Where n3 represents 3 RBs and n6 represents 6 RBs.

[0182] In addition, the size of the N reference RB0 and / or N PRG contained in the first information can be sent to the second device through a single signaling message or information data, or through multiple signaling messages or information data.

[0183] S303, The second device determines multiple precoded physical resource groups in the unified carrier based on the first information.

[0184] The second device obtains the sizes of N reference RB0s and / or N PRGs based on the first information. Specifically, if the first information contains the sizes of reference RB0s and / or PRGs, then the sizes can be determined using the first information; or, if the first information contains indication information of the sizes of reference RB0s and / or PRGs, the sizes can be determined by processing the indication information. The processing method may be parsing the indication information, performing algorithmic processing, or comparing the indication information with a configuration file pre-stored in the second device.

[0185] The process by which the second device determines multiple PRGs in the uni-carrier based on the size of N reference RB0s and / or N PRGs can be as follows: based on the size (P) of the i-th reference RB0 and the corresponding PRG, determine that each P RB is a PRG starting from the i-th reference RB0.

[0186] In this way, by acquiring and transmitting first information through the first device and receiving and determining the precoded physical resource group indicated by the first information through the second device, the first device achieves flexible configuration of the physical resources of the second device. Furthermore, since the configuration of the precoded physical resource group can be based on configuring different reference resource blocks and / or PRG sizes according to multiple frequency bands, multiple carriers, multiple frequency domain resources, and / or multiple BWPs contained in a unified carrier, it is possible to adapt to the channel characteristics of different frequency domain resources of a Uni-carrier, and / or align the PRGs of multiple terminals, which is beneficial for achieving MU multiplexing.

[0187] In some cases, the first device can acquire other information in addition to the first information. This will be explained below with reference to Figure 4.

[0188] S401, The first device acquires first information and second information.

[0189] In this embodiment, the first information can be referred to the description of the corresponding embodiment in FIG3, and will not be repeated. The second information can be understood as candidate information. For example, the second information can be used to indicate the size of M reference resource blocks and / or M precoded physical resource groups, where M is greater than N.

[0190] In one possible implementation, the first device can obtain the first information based on the sizes of the M reference resource blocks and / or the M precoded physical resource groups in the second information. For example, the first device selects the sizes of N reference resource blocks and / or the M precoded physical resource groups from the sizes of the M reference resource blocks and / or the M precoded physical resource groups as the first information.

[0191] For example, the selection method may be as follows: the sizes of the M reference resource blocks and / or M precoded physical resource groups indicated by the second information correspond to the sizes of the M frequency bands / carriers / frequency domain resources / BWPs, and the second device supports N frequency bands / carriers / frequency domain resources / BWPs. The first device may select the sizes of the N reference resource blocks and / or the N precoded physical resource groups from the sizes of the M reference resource blocks and / or the M precoded physical resource groups according to the N frequency bands / carriers / frequency domain resources / BWPs supported by the second device. The sizes of the selected N reference resource blocks and / or the N precoded physical resource groups correspond to the N frequency bands / carriers / frequency domain resources / BWPs supported by the second device.

[0192] For example, the selection method can also be: the first device selects N reference resource blocks and / or N precoded physical resource groups from the sizes of M reference resource blocks and / or M precoded physical resource groups, based on the bandwidth capabilities or service requirements of multiple second devices. This application does not limit the specific selection method.

[0193] S402, The first device sends the second information to the second device.

[0194] The first device can send second information to the second device. The relationship between the magnitudes of reference RB0 and PRG in the second information may be the same as or different from the relationship between the magnitudes of reference RB0 and PRG in the first information, which will not be elaborated here.

[0195] The second type of information can be sent by including it in system information or higher-level signaling. Specific system information and signaling messages can be found in the description in S302, and will not be repeated here.

[0196] S403, The first device sends the first information to the second device.

[0197] In one possible implementation, the first device can send the first information via higher-layer information and / or physical layer signaling (such as DCI). Since the second information contains the size of M reference resource blocks and / or M precoded physical resource groups, in the implementation of sending the first information via the physical layer, the resource configuration information that needs to be carried in the physical layer signaling is less than that in the second information, which can effectively reduce the transmission of DCI signaling.

[0198] The signaling messages or data information used to transmit the first information can be described with reference to the corresponding embodiment in Figure 3, and will not be repeated here.

[0199] S404. Determine multiple precoded physical resource groups in a unified carrier based on the first information and the second information.

[0200] In this embodiment, the second device can obtain multiple precoded physical resource groups (PRGs) based on the first information and the second information. For example, the second information includes the sizes of M reference RB0s and / or M PRGs, and the first information includes the sizes of N reference RB0s and / or N PRGs. The intersection of the two information yields the resource configuration information of multiple PRGs. Alternatively, the second information includes the sizes of M reference RB0s and PRGs, with each reference RB0 and PRG size corresponding to an identifier. The first information can contain N identifiers, and the second device can obtain the sizes of N reference RB0s and N PRGs through these identifiers. Alternatively, upon receiving the second information, the second device selects the sizes of N reference RB0s and / or N PRGs from the sizes of the M reference RB0s and / or M PRGs based on the UE's service requirements (e.g., bandwidth, QoS).

[0201] The data structure and parameter format of signaling messages may differ depending on the protocol layer. Therefore, the expression of the second and first information may also differ in different transmission methods, and this application does not limit this.

[0202] The determination of multiple PRGs may also depend on other system information, which is not limited in the embodiments of this application.

[0203] In some cases, the first device can send first information and second information to multiple second devices, enabling the multiple second devices to determine physical resources. In this way, the first device can configure the physical resources of the multiple second devices.

[0204] Signal transmission can occur between the first device and the second device through multiple precoded physical resource groups. The signals transmitted between the first and second devices can be downlink or uplink signals, such as signals from communication channels like PRxCCH, PRxSCH, PTxCCH, PTxSCH, PDSCH, PUSCH, PUCCH, or PDCCH in wireless communication. For example, before determining the precoded physical resource groups, the first device transmits signals using an initial physical resource group. After the first device transmits signals to the second device, the second device determines the precoded physical resource groups based on first information and / or second information. Subsequently, the second device receives and / or transmits signals on the determined precoded physical resource groups. Multiple precoded physical resource groups can be allocated, updated, deleted, etc. The method of this application embodiment can be applied to various stages of signal transmission.

[0205] It is understood that S401, S402 and S404 are optional steps. With the second information, the first device and / or the second device can obtain more candidate reference RB0 and / or PRG sizes, so that the first device and / or the second device can select a more suitable reference RB0 and / or PRG size according to the candidate information and effectively configure the pre-configured physical resource group.

[0206] The above embodiments provide an overall overview of the methods for configuring and determining physical resources. The following will describe in detail the possible indication methods of the first information in conjunction with Figures 5a-6b.

[0207] Figures 5a-5c illustrate that the first information indicates the size of multiple reference RB0s and / or multiple PRGs corresponding to a uni-carrier. Alternatively, it can be understood as an indication of the size of multiple reference RB0s and / or multiple PRGs from the uni-carrier dimension. For ease of description, the RBs included in a uni-carrier are numbered starting from 0: RB0, RB1, RB2, ..., RBn. Furthermore, for ease of description, the size of the PRG can be referred to as granularity, granular information, or PRG granularity, etc. Here, PRG granularity can be understood as the number of RBs contained in a PRG.

[0208] For the i-th reference resource block among the N reference resource blocks in the first information, it can be indicated by any one or more of the following: the frequency domain position of the i-th reference resource block in the unified carrier; or, a first frequency domain offset, the first frequency domain offset including: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the unified carrier.

[0209] For example, as shown in Figure 5a, a uni-carrier can correspond to a single carrier with full bandwidth. The uni-carrier can be divided into three frequency domain resources: the first frequency domain resource extends from position 0 (the start position of the uni-carrier) to position 1. Position 0 of the first frequency domain resource can correspond to a reference RB0, called the 0th reference RB0, and the granularity P0 of the first frequency domain resource can be 4. The second frequency domain resource extends from position 1 to position 2. Position 1 of the second frequency domain resource can correspond to a reference RB0, called the 1st reference RB0, and the PRG granularity P1 of the second frequency domain resource is 2. The third frequency domain resource extends from position 2 to the end of the uni-carrier. Position 2 of the third frequency domain resource can correspond to a reference RB0, called the 2nd reference RB0, and the PRG granularity P2 of the third frequency domain resource is 4.

[0210] Therefore, the resource configuration information used to indicate multiple PRGs in the first information can be {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2)}.

[0211] The first frequency domain resource in a uni-carrier can include multiple PRGs, with every four RBs starting from the 0th reference RB0 forming a PRG. That is, the first PRG includes RB0-RB3, the second PRG includes RB4-RB7, and so on, with the i-th PRG including RB0-RB3. 4(i-1) -RB 4(i-1)+3 Similarly, for multiple PRGs corresponding to the second frequency domain resources, starting from the RB corresponding to the first reference RB0, every two RBs form a PRG; for multiple PRGs corresponding to the third frequency domain resources, starting from the RB corresponding to the second reference RB0, every four RBs form a PRG.

[0212] Understandably, frequency domain resources in a uni-carrier cannot be fully allocated according to the PRG granularity. For example, if a frequency domain resource in a uni-carrier includes 13 RBs and the PRG granularity is 3, then 5 PRGs can be obtained, with the first 4 including 3 RBs and the last including 1 RB.

[0213] In some cases, multiple granularity information items in the first information can be the same; for example, any two or three of P0, P1, and P2 can be identical. In this case, the first device can issue only one granularity information item, which corresponds to multiple reference RB0s and collectively indicates multiple PRGs in the uni-carrier. Similarly, if multiple PRGs within a frequency domain resource have the same reference RB0 and granularity, a pair (reference RB0, P0) can be used to indicate all PRGs within this frequency domain resource. It can be understood that these reference RB0s and PRG sizes configured according to frequency domain resources can be used to indicate multiple physical resource groups, and can also be understood that the first information includes: N reference RB0s, and / or the sizes of N physical resource groups.

[0214] The reference RB0 in the first information can be directly indicated by the corresponding RB information, frequency resource location, frequency information, etc. The reference RB0 can also be represented by the frequency domain offset of the frequency domain resource or PRG relative to the starting RB of the uni-carrier. For example, the first reference RB0 corresponding to the second frequency domain resource in Figure 5a can be the frequency domain offset offset1 of position 1 relative to position 0, and the second reference RB0 corresponding to the third frequency domain resource can be the frequency domain offset offset2 of position 2 relative to position 0. The reference RB0 can also be an offset relative to other reference RB0s. For example, the second reference RB0 can be the frequency domain offset of the starting position (position 2) of the third frequency domain resource relative to the first reference RB0 (corresponding to position 1).

[0215] In some cases, multiple frequency domain resources in a Uni-carrier can be discontinuous. For example, the first frequency domain resource may be discontinuous with the second frequency domain resource, or the second frequency domain resource may be discontinuous with the third frequency domain resource.

[0216] For example, as shown in Figure 5a, the uni-carrier includes a first frequency domain resource, a second frequency domain resource, and a third frequency domain resource. The uni-carrier also corresponds to BWP0 and BWP1. The corresponding first information includes {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2)}, where the 0th reference RB0 is the reference RB0 of the first frequency domain resource, corresponding to the starting RB of the first frequency domain resource. The 1st reference RB0 is the reference RB0 of the second frequency domain resource, and can be the frequency domain offset offset1 of the first RB of the second frequency domain resource relative to the starting RB of the uni-carrier. Similarly, the 2nd reference RB0 is the starting RB of the third frequency domain resource, and can be the frequency domain offset offset2 of the first RB of the third frequency domain resource relative to the starting RB of the uni-carrier.

[0217] Optionally, the i-th BWP (BWP) in the uni-carrieri This can include one or more RBs in the frequency domain. In this case, the BWP... i Taking one or more reference RB0s and one or more PRG granularity indicators as an example, the uni-carrier includes multiple PRGs, numbered sequentially as PRG. 01 ,PRG 11 ,PRG 21 ,…,PRG n1 PRG 02 ,PRG 12 ,PRG 22 ,…,PRG nj ,…

[0218] Among them, PRG 0j ,PRG 1j ,PRG 2j ,…,PRG nj For BWP i The index of the n PRGs contained in the j-th frequency domain resource, PRG nj , where P is the (n+1)th PRG. j For the PRG granularity corresponding to the j-th frequency domain resource, For BWP i The number of RBs offset from the j-th reference RB0 in the j-th frequency domain resource. For BWP i The bandwidth in the j-th frequency domain resource, that is, the number of RBs included in the j-th frequency domain resource.

[0219] The sizes of the multiple PRGs in the uni-carrier are referenced as follows:

[0220] Size of the first PRG in the first frequency domain resource: in, For BWP i The number of RBs offset from the j-th reference RB0 in the first frequency domain resource; P0 is the BWP. i The PRG granularity in the first frequency domain resource.

[0221] Size of the last PRG in the first frequency domain resource: if but otherwise, in, For BWP i The bandwidth in the first frequency domain resource, i.e., BWP i The number of RBs included in the first frequency domain resource.

[0222] Size of other PRGs in the first frequency domain resource: P0.

[0223] Size of the first PRG in the second frequency domain resource: in, For BWP i The number of RBs offset from the j-th reference RB0 in the second frequency domain resource; P1 is the BWP. i The PRG granularity in the first frequency domain resource.

[0224] The size of the last PRG in the second frequency domain resource: if but otherwise, in, For BWP i The size, i.e., BWP i The number of RBs included.

[0225] Size of other PRGs in the second frequency domain resource: P1.

[0226] The same principle applies to other frequency domain resources, so I won't go into details further.

[0227] For example, in Figure 5a, the number of RBs offset by the starting RB of BWP0 in the first frequency domain resource relative to the first reference RB0 is 0, that is, the size of the first PRG of BWP0 in the first frequency domain resource is equal to the granularity P0, which is 4; the size of the last PRG of BWP0 in the first frequency domain resource is 1; the size of the other PRGs of BWP0 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0228] The number of RBs offset by the starting RB of BWP0 relative to the second reference RB0 in the second frequency domain resource is 0, that is, the size of the first PRG of BWP0 in the second frequency domain resource is equal to the granularity P1, which is 2; the size of the last PRG of BWP0 in the first frequency domain resource is 1; the size of the other PRGs of BWP0 in the first frequency domain resource is equal to the granularity P1, which is 2.

[0229] Example of the size of the last PRG of BWP0 in the first frequency domain resource: If the size (bandwidth) of BWP0 in the first frequency domain resource is 33 RBs, (0+33)mod4=1, then the size of the last PRG of BWP0 in the first frequency domain resource is 1; if the size (bandwidth) of BWP0 in the first frequency domain resource is 32 RBs, (0+32)mod4=0, then the size of the last PRG of BWP0 in the first frequency domain resource is 4.

[0230] Example of the size of the last PRG of BWP0 in the second frequency domain resource: If the size (bandwidth) of BWP0 in the second frequency domain resource is 33 RBs, (0+33)mod2=1, then the size of the last PRG of BWP0 in the second frequency domain resource is 1; if the size (bandwidth) of BWP0 in the first frequency domain resource is 32 RBs, (0+32)mod2=0, then the size of the last PRG of BWP0 in the first frequency domain resource is 2.

[0231] For example, in Figure 5a, the number of RBs offset by the starting RB of BWP1 in the second frequency domain resource relative to the first reference RB0 is 15, that is, the size of the first PRG of BWP1 in the second frequency domain resource is equal to 2-15mod2=1, which is 1; the size of the last PRG of BWP1 in the second frequency domain resource is 2; the size of the other PRGs of BWP1 in the second frequency domain resource is equal to the granularity P1, which is 2.

[0232] The number of RBs offset from the second reference RB0 in the third frequency domain resource of BWP1 is 0, that is, the size of the first PRG of BWP1 in the third frequency domain resource is equal to the granularity P2, which is 4; the size of the last PRG of BWP1 in the third frequency domain resource is 4; the size of the other PRGs of BWP1 in the third frequency domain resource is equal to the granularity P2, which is 4.

[0233] Example of the size of the last PRG of BWP1 in the second frequency domain resource: If the size (bandwidth) of BWP1 in the second frequency domain resource is 32 RBs, (15+32)mod2=1, then the size of the last PRG of BWP1 in the second frequency domain resource is 1; if the size (bandwidth) of BWP1 in the second frequency domain resource is 33 RBs, (15+33)mod2=0, then the size of the last PRG of BWP1 in the second frequency domain resource is 2.

[0234] For example, regarding the size of the last PRG of BWP1 in the third frequency domain resource: If the size (bandwidth) of BWP1 in the third frequency domain resource is 33 RBs, 33 mod 4 = 1, then the size of the last PRG of BWP1 in the third frequency domain resource is 1; if the size (bandwidth) of BWP1 in the third frequency domain resource is 32 RBs, (0 + 32) mod 4 = 0, then the size of the last PRG of BWP1 in the third frequency domain resource is 4. For each frequency domain resource corresponding to the uni-carrier, the sizes of the first and last PRGs can also be applied to other calculation relationships based on the correspondence between BWP, frequency domain resource, and reference RB.

[0235] It should be noted that the reference RB0 and granular information can be indicated indirectly. For example, the reference RB0 can be indirectly indicated by RB identifiers, position identifiers such as position1, or frequency domain offset identifiers, while the granular information can be indicated by granular identifiers. In the case of indirect indication, the second device can obtain the reference RB0 and granular information through processing such as configuration files and the correspondence between identifiers and physical resources.

[0236] For example, as shown in Figure 5b, in some cases, a uni-carrier may include multiple frequency bands. The uni-carrier includes bands 0 to 3, which can support different modulation schemes. For example, bands 0 to 1 support FDD, and bands 2 to 3 support TDD.

[0237] In one implementation of this application, a first device can configure multiple reference RB0s and / or multiple PRG granularities according to a frequency band. For example, the first device can configure one or more reference RB0s and / or one or more PRG granularities for a frequency band in a Uni-carrier. For the i-th reference resource block among the N reference resource blocks in the first information, it can be indicated by any one or more of the following: the frequency domain position of the starting reference resource block of the frequency band corresponding to the i-th reference resource block; or, a second frequency domain offset, the second frequency domain offset including: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the frequency band corresponding to the i-th reference resource block.

[0238] For example, in the uni-carrier shown in Figure 5b, multiple frequency bands are treated as a single frequency domain resource. The starting RB of one of the multiple frequency bands is used as the reference RB0 of the PRG in this frequency domain resource. For example, frequency bands 0 and 1 are treated as a single frequency domain resource, and the starting RB of frequency band 0 is used as the 0th reference RB0. Alternatively, one frequency band in the uni-carrier can be treated as a single frequency domain resource, and the starting RB of the frequency band is used as the reference RB0 of the PRG in this frequency domain resource. For example, frequency band 2 is treated as a single frequency domain resource, and the starting RB of frequency band 2 is used as the 1st reference RB0. Alternatively, a frequency band can also include multiple frequency domain resources, corresponding to multiple reference RB0s. For example, frequency band 3 includes two frequency domain resources. One frequency domain resource uses the starting RB of frequency band 3 as the reference RB0 of the PRG in this frequency domain resource, corresponding to the 2nd reference RB0. The other frequency domain resource uses the frequency domain offset 3 relative to the starting RB of frequency band 3 as the reference RB0 of the PRG in this frequency domain resource, corresponding to the 3rd reference RB0.

[0239] For example, frequency domain resources between multiple frequency bands can be discontinuous. For instance, the resources of frequency band 0 are discontinuous with those of frequency band 1, the resources of frequency band 1 are discontinuous with those of frequency band 2, and the resources of frequency band 2 are discontinuous with those of frequency band 3.

[0240] For example, as shown in Figure 5b, the uni-carrier includes a first frequency domain resource, a second frequency domain resource, a third frequency domain resource, and a fourth frequency domain resource, and the uni-carrier corresponds to frequency band 0, frequency band 1, frequency band 2, and frequency band 3. The first information corresponding to the uni-carrier includes {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), (3rd reference RB0, P3)}, where the 0th reference RB0 is the reference RB0 of the first frequency domain resource, corresponding to the starting RB of frequency band 0. The 1st reference RB0 is the reference RB0 of the second frequency domain resource, corresponding to the starting RB of frequency band 2, and can be the frequency domain offset of the first RB of the second frequency domain resource relative to the starting RB of the uni-carrier. Similarly, the second reference RB0 is the starting RB of the third frequency domain resource, which can be the frequency domain offset of the first RB of frequency band 3 relative to the starting RB of the uni-carrier, and the third reference RB0 is the starting RB of the fourth frequency domain resource, which can be the frequency domain offset of the first RB of the fourth frequency domain resource relative to the starting RB of frequency band 3.

[0241] Optionally, the i-th frequency band in a uni-carrier can correspond to one or more RBs in a frequency domain resource, and a frequency domain resource can also correspond to one or more frequency bands. In this case, the band... i Taking one or more reference RB0s and one or more PRG granularity indicators as an example, the uni-carrier includes multiple PRGs, numbered sequentially as PRG. 01 ,PRG 11 ,PRG 21 ,…,PRG n1 PRG 02 ,PRG 12 ,PRG 22 ,…,PRG nj ,…

[0242] Among them, PRG 0j ,PRG 1j ,PRG 2j ,…,PRG nj For the corresponding band in the j-th frequency domain resource i It contains the numbers of n PRGs, PRG nj , where P is the (n+1)th PRG. j For the PRG granularity corresponding to the j-th frequency domain resource, For the j-th frequency domain resource, the j-th reference RB0 is relative to the band. i The number of RBs at the starting RB offset, or For band i The bandwidth in the j-th frequency domain resource, or it can also be understood as band. i The bandwidth overlapping with the j-th frequency domain resources, i.e., band i The number of RBs included in the j-th frequency domain resource.

[0243] The sizes of the multiple PRGs in the uni-carrier are referenced as follows:

[0244] Size of the first PRG in the first frequency domain resource: in, For band i The number of RBs offset from the 0th reference RB0 in the first frequency domain resource; P0 is the band. i The PRG granularity in the first frequency domain resources.

[0245] Size of the last PRG in the first frequency domain resource: if but otherwise, in, For band i The bandwidth in the first frequency domain resource, i.e., band i The number of RBs included in the first frequency domain resource.

[0246] Size of other PRGs in the first frequency domain resource: P0.

[0247] Size of the first PRG in the second frequency domain resource: in, For band i The number of RBs offset from the j-th reference RB0 in the second frequency domain resource; P1 is the band. i The PRG granularity in the first frequency domain resources.

[0248] Size of the last PRG in the second frequency domain resource: if but otherwise, in, For band i The size, i.e., band i The number of RBs included.

[0249] Size of other PRGs in the second frequency domain resource: P1.

[0250] The same principle applies to other frequency domain resources, so I won't go into details further.

[0251] For example, in Figure 5b, the number of RBs offset by the starting RB of band0 in the first frequency domain resource relative to the 0th reference RB0 is 0, that is, the size of the first PRG of band0 in the first frequency domain resource is equal to the granularity P0, which is 4; the size of the last PRG of band0 in the first frequency domain resource is 1; the size of the other PRGs of band0 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0252] Examples of the size of the last PRG of band0 in the first frequency domain resource: If the size (bandwidth) of band0 in the first frequency domain resource is 17 RBs, (0+17)mod4=1, then the size of the last PRG of band0 in the first frequency domain resource is 1; if the size (bandwidth) of band0 in the first frequency domain resource is 19 RBs, (0+19)mod4=3, then the size of the last PRG of band0 in the first frequency domain resource is 3; if the size (bandwidth) of band0 in the first frequency domain resource is 20 RBs, (0+20)mod4=0, then the size of the last PRG of band0 in the first frequency domain resource is 4.

[0253] The number of RBs offset from the 0th reference RB0 in the first frequency domain resource of band1 is 17, that is, the size of the first PRG of band1 in the first frequency domain resource is equal to 4-(0+17)mod4, which is 3; the size of the last PRG of band1 in the first frequency domain resource is 1; the size of the other PRGs of band1 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0254] Example of the size of the last PRG of band1 in the first frequency domain resource: If the size (bandwidth) of band1 in the first frequency domain resource is 28 RBs, (17+28)mod4=1, then the size of the last PRG of band1 in the first frequency domain resource is 1; if the size (bandwidth) of band1 in the first frequency domain resource is 27 RBs, (17+27)mod4=0, then the size of the last PRG of band1 in the first frequency domain resource is 4.

[0255] Similarly, the number of RBs offset from the first reference RB0 in the second frequency domain resource of band2 is 0, that is, the size of the first PRG of band2 in the second frequency domain resource is equal to the granularity P1, which is 2; the size of the last PRG of band2 in the second frequency domain resource is 1; the size of the other PRGs of band2 in the second frequency domain resource is equal to the granularity P1, which is 2.

[0256] For example, regarding the size of the last PRG of band2 in the second frequency domain resource: If the size (bandwidth) of band2 in the second frequency domain resource is 33 RBs, (0+33)mod2=1, then the size of the last PRG of band2 in the second frequency domain resource is 1; if the size (bandwidth) of band2 in the second frequency domain resource is 32 RBs, (0+32)mod2=0, then the size of the last PRG of band2 in the second frequency domain resource is 2.

[0257] The number of RBs offset from the second reference RB0 in the starting RB of band3 in the third frequency domain resource is 1, that is, the size of the first PRG of band3 in the third frequency domain resource is equal to 2-1 mod 2, which is 1; the size of the last PRG of band3 in the third frequency domain resource is 2; the size of the other PRGs of band3 in the third frequency domain resource is equal to the granularity P2, which is 2.

[0258] The number of RBs offset from the second reference RB0 in the fourth frequency domain resource of band3 is 16, that is, the size of the first PRG of band3 in the fourth frequency domain resource is equal to 4-(16)mod4, which is 4; the size of the last PRG of band3 in the fourth frequency domain resource is 4; the size of the other PRGs of band3 in the fourth frequency domain resource is equal to the granularity P3, which is 4.

[0259] For example, regarding the size of the last PRG in the fourth frequency domain resource for band3: If the size (bandwidth) of band4 in the fourth frequency domain resource is 29 RBs, (16+29)mod4=1, then the size of the last PRG of band3 in the fourth frequency domain resource is 1; if the size (bandwidth) of band3 in the fourth frequency domain resource is 28 RBs, (16+28)mod4=0, then the size of the last PRG of band3 in the fourth frequency domain resource is 4. For each frequency domain resource corresponding to each frequency band in a uni-carrier, the sizes of the first and last PRGs can also be applied to other calculation relationships based on the correspondence between BWP, frequency band, and reference RB.

[0260] In addition, access network devices can configure PRG granularity for each frequency domain resource separately, and the PRG granularity in different frequency domain resources can be the same or different.

[0261] The resource configuration information used to indicate multiple PRGs in the first information can be {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), (3rd reference RB0, P3)}.

[0262] In this way, the first device can configure the reference RB0 and / or the size of the PRG for different frequency domain resources respectively, and correspondingly, the second device can determine the PRG for different frequency domain resources.

[0263] The specific method for determining multiple PRGs in the frequency domain resources based on reference RB0 and granularity can be found in the description of the embodiment in Figure 5a, and will not be repeated here.

[0264] For example, as shown in Figure 5c, in some cases, a uni-carrier may include multiple component carriers. For example, the uni-carrier in Figure 5c includes component carriers 0 through 4. These component carriers may belong to the same or different frequency bands, and may support the same or different modulation schemes. For instance, component carriers 0 through 2 belong to frequency bands 0 and 2 respectively, component carriers 3 and 4 belong to frequency band 3, frequency bands 0 through 1 support FDD, and frequency bands 2 through 3 support TDD.

[0265] In one implementation of this application, the first device can configure multiple reference RB0s and / or multiple PRG granularities based on the component carrier. For example, the first device can configure one or more reference RB0s and / or one or more PRG granularities for the component carrier in a Uni-carrier. For the i-th reference resource block among the N reference resource blocks in the first information, it can be indicated by any one or more of the following: the frequency domain position of the starting reference resource block of the component carrier corresponding to the i-th reference resource block; or, a third frequency domain offset, the third frequency domain offset including: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the component carrier corresponding to the i-th reference resource block.

[0266] For example, in the uni-carrier shown in Figure 5c, multiple component carriers can be used as a frequency domain resource. The starting RB of one of the component carriers is used as the reference RB0 of the PRG in this component carrier. For example, both component carrier 0 and component carrier 1 use the starting RB of component carrier 0 as reference RB0, which is called the 0th reference RB0. Alternatively, a component carrier can be used as a frequency domain resource. The starting RB of the component carrier is used as the reference RB0 of the PRG in this frequency domain resource. For example, the starting RB of component carrier 2 is used as reference RB0, which is called the 1st reference RB0, and the starting RB of component carrier 3 is used as the 2nd reference RB0. Alternatively, a component carrier can also contain multiple frequency domain resources. The starting RB of the component carrier and the frequency domain offset between the starting RB and the starting RB of the component carrier are used as the reference RB0 of the PRG in the multiple frequency domain resources. For example, component carrier 4 contains two frequency domain resources. One frequency domain resource uses the starting RB of component carrier 4 as reference RB0, corresponding to the 3rd reference RB0, and the other frequency domain resource uses the frequency domain offset 4 relative to the starting RB of component carrier 4 as the 4th reference RB0.

[0267] For example, the frequency domain resources between multiple component carriers can be discontinuous. For instance, the resources of component carrier 0 and component carrier 1 are discontinuous, the resources of component carrier 1 and component carrier 2 are discontinuous, the resources of component carrier 2 and component carrier 3 are discontinuous, or the resources of component carrier 3 and component carrier 4 are discontinuous.

[0268] Corresponding to the frequency domain resources, each reference RB0 corresponds to a granularity. The granularity corresponding to different component carriers can be the same or different.

[0269] The resource configuration information used to indicate multiple PRGs in the first information can be {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), (3rd reference RB0, P3), (4th reference RB0, P4)}.

[0270] In this way, the reference RB0 and / or the size of the PRG can be configured and determined according to the component carrier. The first device can configure the reference RB0 and / or PRG granularity for the PRG in different component carriers respectively. Correspondingly, the second device can determine the PRG in different component carriers.

[0271] For example, the frequency domain resources between multiple component carriers can be discontinuous. For instance, the resources of component carrier 0 and component carrier 1 are discontinuous, the resources of component carrier 1 and component carrier 2 are discontinuous, and the resources of component carrier 2 and component carrier 3 are discontinuous.

[0272] For example, as shown in Figure 5c, the uni-carrier includes a first frequency domain resource, a second frequency domain resource, a third frequency domain resource, a fourth frequency domain resource, and a fifth frequency domain resource. The uni-carrier also corresponds to component carrier 0, component carrier 1, component carrier 2, component carrier 3, and component carrier 4. The first information corresponding to the uni-carrier includes {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), (3rd reference RB0, P3), (4th reference RB0, P4)}, where the 0th reference RB0 is the reference RB0 of the first frequency domain resource, corresponding to the starting RB of component carrier 0. The 1st reference RB0 is the reference RB0 of the second frequency domain resource, corresponding to the starting RB of component carrier 2, and can be the frequency domain offset of the first RB of the second frequency domain resource relative to the starting RB of the uni-carrier. Similarly, the second reference RB0 is the starting RB of the third frequency domain resource, which can be the frequency domain offset of the first RB of component carrier 3 relative to the starting RB of the uni-carrier; the third reference RB0 is the starting RB of the fourth frequency domain resource, which can be the starting RB of component carrier 4; and the fourth reference RB0 is the starting RB of the fifth frequency domain resource, which can be the frequency domain offset of the first RB of the fifth frequency domain resource relative to the starting RB of component carrier 4.

[0273] Optionally, the i-th component carrier (CC) in the uni-carrier can correspond to one or more RBs in the frequency domain resources, and a frequency domain resource can also correspond to one or more component carriers. In this case, taking the indication of one or more reference RB0s and one or more PRG granularities as an example, the uni-carrier includes multiple PRGs, sequentially numbered as PRG. 01 ,PRG 11 ,PRG 21 ,…,PRG n1 PRG 02 ,PRG 12 ,PRG 22 ,…,PRG nj ,…

[0274] Among them, PRG 0j ,PRG 1j ,PRG 2j ,…,PRG nj For the corresponding CC in the j-th frequency domain resource i It contains the numbers of n PRGs, PRG nj , where P is the (n+1)th PRG. j For the PRG granularity corresponding to the j-th frequency domain resource, For the j-th frequency domain resource, the j-th reference RB0 is relative to CC. iThe number of RBs at the starting RB offset, or For band i The bandwidth in the j-th frequency domain resource, or it can also be understood as CC i The bandwidth overlapping with the j-th frequency domain resources, i.e., CC i The number of RBs included in the j-th frequency domain resource.

[0275] The sizes of the multiple PRGs in the uni-carrier are referenced as follows:

[0276] Size of the first PRG in the first frequency domain resource: in, For CC i The number of RBs offset from the 0th reference RB0 in the first frequency domain resource; P0 is CC. i The PRG granularity in the first frequency domain resources.

[0277] Size of the last PRG in the first frequency domain resource: if but otherwise, in, For CC i The bandwidth in the first frequency domain resource, i.e., CC i The number of RBs included in the first frequency domain resource.

[0278] Size of other PRGs in the first frequency domain resource: P0.

[0279] Size of the first PRG in the second frequency domain resource: in, For CC i The number of RBs offset from the j-th reference RB0 in the second frequency domain resource; P1 is CC i The PRG granularity in the first frequency domain resources.

[0280] Size of the last PRG in the second frequency domain resource: if but otherwise, in, For CC i The size, i.e., CC i The number of RBs included.

[0281] Size of other PRGs in the second frequency domain resource: P1.

[0282] The same principle applies to other frequency domain resources, so I won't go into details further.

[0283] For example, in Figure 5b, the number of RBs offset by the starting RB of CC0 in the first frequency domain resource relative to the 0th reference RB0 is 0, that is, the size of the first PRG of CC0 in the first frequency domain resource is equal to the granularity P0, which is 4; the size of the last PRG of CC0 in the first frequency domain resource is 1; the size of the other PRGs of CC0 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0284] Examples of the size of the last PRG of CC0 in the first frequency domain resource: If the size (bandwidth) of CC0 in the first frequency domain resource is 17 RBs, (0+17)mod4=1, then the size of the last PRG of CC0 in the first frequency domain resource is 1; if the size (bandwidth) of CC0 in the first frequency domain resource is 19 RBs, (0+19)mod4=3, then the size of the last PRG of CC0 in the first frequency domain resource is 3; if the size (bandwidth) of CC0 in the first frequency domain resource is 20 RBs, (0+20)mod4=0, then the size of the last PRG of CC0 in the first frequency domain resource is 4.

[0285] The number of RBs offset from the 0th reference RB0 in the first frequency domain resource of CC1 is 17, that is, the size of the first PRG of CC1 in the first frequency domain resource is equal to 4-(0+17)mod4, which is 3; the size of the last PRG of CC1 in the first frequency domain resource is 1; the size of the other PRGs of CC1 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0286] Example of the size of the last PRG of CC1 in the first frequency domain resource: If the size (bandwidth) of CC1 in the first frequency domain resource is 28 RBs, (17+28)mod4=1, then the size of the last PRG of CC1 in the first frequency domain resource is 1; if the size (bandwidth) of CC1 in the first frequency domain resource is 27 RBs, (17+27)mod4=0, then the size of the last PRG of CC1 in the first frequency domain resource is 4.

[0287] Similarly, the number of RBs offset from the first reference RB0 in the second frequency domain resource of CC2 is 0, that is, the size of the first PRG of CC2 in the second frequency domain resource is equal to the granularity P1, which is 2; the size of the last PRG of CC2 in the second frequency domain resource is 1; the size of the other PRGs of CC2 in the second frequency domain resource is equal to the granularity P1, which is 2.

[0288] For example, regarding the size of the last PRG of CC2 in the second frequency domain resource: If the size (bandwidth) of CC2 in the second frequency domain resource is 33 RBs, (0+33)mod2=1, then the size of the last PRG of CC2 in the second frequency domain resource is 1; if the size (bandwidth) of CC2 in the second frequency domain resource is 32 RBs, (0+32)mod2=0, then the size of the last PRG of CC2 in the second frequency domain resource is 2.

[0289] The number of RBs offset from the second reference RB0 in the third frequency domain resource of CC3 is 1, that is, the size of the first PRG of CC3 in the third frequency domain resource is equal to 2-1 mod 2, which is 1; the size of the last PRG of CC3 in the third frequency domain resource is 2; the size of the other PRGs of CC3 in the third frequency domain resource is equal to the granularity P2, which is 2.

[0290] The number of RBs offset from the third reference RB0 in the fourth frequency domain resource of CC4 is 0, that is, the size of the first PRG of CC4 in the third frequency domain resource is equal to 4; the size of the last PRG of CC4 in the fourth frequency domain resource is 3; the size of the other PRGs of CC4 in the fourth frequency domain resource is equal to the granularity P3, which is 4.

[0291] The number of RBs offset from the third reference RB0 in the fifth frequency domain resource of CC4 is 7, that is, the size of the first PRG of CC4 in the fifth frequency domain resource is equal to 2-(7)mod2, which is 1; the size of the last PRG of CC4 in the fifth frequency domain resource is 2; the size of the other PRGs of CC4 in the fifth frequency domain resource is equal to the granularity P4, which is 2.

[0292] Example of the size of the last PRG of CC4 in the fifth frequency domain resource: If the size (bandwidth) of CC4 in the fifth frequency domain resource is 28 RBs, (7+28)mod2=1, then the size of the last PRG of CC4 in the fifth frequency domain resource is 1; if the size (bandwidth) of CC4 in the fifth frequency domain resource is 298 RBs, (7+29)mod2=0, then the size of the last PRG of CC4 in the fifth frequency domain resource is 2.

[0293] For each frequency domain resource corresponding to each component carrier in a uni-carrier, the size of the first PRG and the size of the last PRG can also be applied to other calculation relationships based on the correspondence between BWP, component carrier, and reference RB.

[0294] Alternatively, the i-th frequency domain resource in a uni-carrier can be represented as F i Frequency domain resources can be carriers or frequency bands.i It includes multiple PRGs, numbered sequentially as PRG0, PRG1, PRG2, ..., PRG j , with F i Taking a reference RB0 and an indicator of PRG granularity as an example, one way to determine the size of the PRG is as follows:

[0295] Size of the first PRG: in, For reference RB0 relative to F i The starting RB or the starting RB of the uni-carrier, and the number of RBs offset; P is F i PRG granularity.

[0296] Size of the last PRG: if but otherwise, in, For F i The size, i.e., F i The number of RBs included.

[0297] Other PRG sizes: P.

[0298] The embodiments shown in Figures 5a-5c describe a method for a first device to configure and determine multiple PRGs contained in a uni-carrier, based on the uni-carrier and its multiple frequency bands and / or component carriers.

[0299] A uni-carrier can also include one or more BWPs. A second device can communicate with a first device through a specific BWP within the uni-carrier. Therefore, embodiments of this application can also configure and determine multiple PRGs based on BWPs. For example, the first device can configure one or more reference RB0s and / or one or more PRG granularities for a BWP in the uni-carrier. The first information used to indicate the reference RB0s and / or the sizes of multiple PRGs corresponding to a BWP will be explained below with reference to Figures 6a and 6b. Alternatively, it can be understood that the first information indicates the sizes of multiple reference RB0s and / or multiple PRGs from the BWP dimension.

[0300] For ease of description, multiple BWPs in a uni-carrier are numbered starting from 0: BWP0, BWP1, ..., BWPn. The RBs included in a BWP are numbered starting from 0: RB0, RB1, RB2, ..., RBn.

[0301] The representation of the sizes of RB0 and PRG can be found in the descriptions in the embodiments of Figures 5a-5c, and will not be repeated here.

[0302] The first information is used to indicate multiple precoded physical resource groups (BWPs) within a bandwidth portion (BWP). A BWP can be one of multiple BWPs corresponding to a unified carrier. For the j-th reference resource block among the N reference resource blocks indicated by the first information, the j-th reference resource block is indicated by one or more of the following: the frequency domain offset between the j-th reference resource block and the starting reference resource block of the unified carrier; or the position of the starting reference resource block of the BWP corresponding to the j-th reference resource block; or the frequency domain offset between the j-th reference resource block and the starting reference resource block of the BWP corresponding to the j-th reference resource block. A BWP can include multiple frequency domain resources, and each frequency domain resource's PRG is configured with a reference RB0 and / or a granularity. For example, the reference RB0 of the PRG in the first frequency domain resource can be the starting RB of the BWP, and the reference RB0 of the PRG in other resource segments can be the frequency domain offset of the first RB in that frequency domain resource relative to the starting RB of the BWP.

[0303] For example, as shown in Figure 6a, the uni-carrier includes BWP0 and BWP1. BWP0 includes two frequency domain resources: the first frequency domain resource (first frequency domain resource) is from position 0 (the start position of BWP0) to position 1, and the second frequency domain resource (second frequency domain resource) is from position 1 to the end position of BWP0. The corresponding first information includes {(0th reference RB0, P0), (1st reference RB0, P1)}, where the 0th reference RB0 is the reference RB0 of the first frequency domain resource, corresponding to the start RB of BWP0. The 1st reference RB0 is the reference RB0 of the second frequency domain resource, which can be the frequency domain offset offset5 of the first RB of the second resource segment relative to the start RB of BWP0. Similarly, BWP1 includes two frequency domain resources: the first frequency domain resource (first frequency domain resource) is from position 2 (the start position of BWP1) to position 3, and the second frequency domain resource (second frequency domain resource) is from position 3 to the end position of BWP1. The corresponding configuration is {(Second Reference RB0, P2), (Third Reference RB0, P3)}, where the second reference RB0 is the starting RB of BWP1, and the third reference RB0 is the frequency domain offset (offset6) of the first RB of the second frequency domain resource in BWP1 relative to the starting RB of BWP1. Multiple reference RB0s correspond to multiple frequency domain resources of BWP, and each frequency domain resource corresponds to a granularity. The granularity of different frequency domain resources can be the same; for example, the PRG in the second frequency domain resource of BWP0 and the first frequency domain resource of BWP1 can use the same granularity P1 = 2. The granularity of different frequency domain resources can also be different; for example, the PRG granularity in the first frequency domain resource of BWP0 is P0 = 4, and the PRG granularity in the second frequency domain resource is P1 = 2.

[0304] The uni-carrier includes first, second, third, and fourth frequency domain resources, and corresponds to BWP0 and BWP1. The corresponding first information includes {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P2), (3rd reference RB0, P3)}, where the 0th reference RB0 is the reference RB0 of the first frequency domain resource, corresponding to the starting RB of the first frequency domain resource. The 1st reference RB0 is the reference RB0 of the second frequency domain resource, and can be the frequency domain offset (offset5) of the first RB of the second frequency domain resource relative to the starting RB of BWP0. Similarly, the 2nd reference RB0 is the starting RB of the third frequency domain resource, and can be the starting RB of BWP1. The 3rd reference RB0 is the reference RB0 of the fourth frequency domain resource, and can be the frequency domain offset (offset6) of the first RB of the fourth frequency domain resource relative to the starting RB of BWP1.

[0305] Optionally, the i-th BWP (BWP) in the uni-carrier iThis can include one or more RBs in the frequency domain. In this case, the BWP... i Taking one or more reference RB0s and one or more PRG granularity indicators as an example, the uni-carrier includes multiple PRGs, numbered sequentially as PRG. 01 ,PRG 11 ,PRG 21 ,…,PRG n1 PRG 02 ,PRG 12 ,PRG 22 ,…,PRG nj ,…

[0306] Among them, PRG i0j ,PRG 1j ,PRG 2j ,…,PRG nj For BWP i The index of the n PRGs contained in the j-th frequency domain resource, PRG nj , where P is the nth PRG. j For the PRG granularity corresponding to the j-th frequency domain resource, For BWP i The number of RBs offset from the j-th reference RB0 in the j-th frequency domain resource. For BWP i The bandwidth in the j-th frequency domain resource, that is, the number of RBs included in the j-th frequency domain resource.

[0307] The sizes of the multiple PRGs in the uni-carrier are referenced as follows:

[0308] Size of the first PRG in the first frequency domain resource: in, For BWP i The number of RBs offset from the j-th reference RB0 in the first frequency domain resource; P0 is the BWP. i The PRG granularity in the first frequency domain resources.

[0309] Size of the last PRG in the first frequency domain resource: if but otherwise, in, For BWP i Bandwidth in the first frequency domain resource, i.e., BWP i The number of RBs included in the first frequency domain resource.

[0310] Size of other PRGs in the first frequency domain resource: P0.

[0311] Size of the first PRG in the second frequency domain resource: in, For BWP i The number of RBs offset from the j-th reference RB0 in the second frequency domain resource; P1 is the BWP. i The PRG granularity in the first frequency domain resources.

[0312] Size of the last PRG in the second frequency domain resource: if but otherwise, in, For BWP i The size, i.e., BWP i The number of RBs included.

[0313] Size of other PRGs in the second frequency domain resource: P1.

[0314] The same principle applies to other frequency domain resources, so I won't go into details further.

[0315] For example, in Figure 5a, the number of RBs offset by the starting RB of BWP0 in the first frequency domain resource relative to the 0th reference RB0 is 0, that is, the size of the first PRG of BWP0 in the first frequency domain resource is equal to the granularity P0, which is 4; the size of the last PRG of BWP0 in the first frequency domain resource is 1; the size of the other PRGs of BWP0 in the first frequency domain resource is equal to the granularity P0, which is 4.

[0316] The number of RBs offset by the starting RB of BWP0 relative to the first reference RB0 in the second frequency domain resource is 0, that is, the size of the first PRG of BWP0 in the second frequency domain resource is equal to the granularity P1, which is 2; the size of the last PRG of BWP0 in the first frequency domain resource is 1; the size of the other PRGs of BWP0 in the first frequency domain resource is equal to the granularity P1, which is 2.

[0317] Example of the size of the last PRG of BWP0 in the first frequency domain resource: If the size (bandwidth) of BWP0 in the first frequency domain resource is 33 RBs, (0+33)mod4=1, then the size of the last PRG of BWP0 in the first frequency domain resource is 1; if the size (bandwidth) of BWP0 in the first frequency domain resource is 32 RBs, (0+32)mod4=0, then the size of the last PRG of BWP0 in the first frequency domain resource is 4.

[0318] Example of the size of the last PRG of BWP0 in the second frequency domain resource: If the size (bandwidth) of BWP0 in the second frequency domain resource is 6 RBs, (33+6)mod2=1, then the size of the last PRG of BWP0 in the second frequency domain resource is 1; if the size (bandwidth) of BWP0 in the first frequency domain resource is 7 RBs, (33+7)mod2=0, then the size of the last PRG of BWP0 in the first frequency domain resource is 2.

[0319] For example, in Figure 6a, the number of RBs offset by the starting RB of BWP1 in the third frequency domain resource relative to the second reference RB0 is 0, that is, the size of the first PRG of BWP1 in the third frequency domain resource is equal to 2-0mod2, which is 2; the size of the last PRG of BWP1 in the third frequency domain resource is 2; the size of the other PRGs of BWP1 in the third frequency domain resource is equal to the granularity P2, which is 2.

[0320] The number of RBs offset from the starting RB of BWP1 in the fourth frequency domain resource is 6, that is, the size of the first PRG of BWP1 in the fourth frequency domain resource is equal to 4-6mod4, which is 2; the size of the last PRG of BWP1 in the fourth frequency domain resource is 4; the size of the other PRGs of BWP1 in the fourth frequency domain resource is equal to the granularity P3, which is 4.

[0321] Regarding the size of the first PRG of BWP1 in the third frequency domain resource, it is also possible that the correspondence between BWP and frequency domain resources applies to other calculation relationships. For example, the number of RBs offset by the starting RB of BWP1 relative to the second reference RB0 is 1, that is, the size of the first PRG of BWP1 in the third frequency domain resource is equal to 2-1 mod 2, which is 1.

[0322] For example, regarding the size of the last PRG of BWP1 in the third frequency domain resource: If the size (bandwidth) of BWP1 in the third frequency domain resource is 32 RBs, (0+32)mod2=0, then the size of the last PRG of BWP1 in the third frequency domain resource is 2; if the size (bandwidth) of BWP1 in the third frequency domain resource is 33 RBs, (0+33)mod2=1, then the size of the last PRG of BWP1 in the third frequency domain resource is 1.

[0323] Example of the size of the last PRG of BWP1 in the fourth frequency domain resource: If the size (bandwidth) of BWP1 in the fourth frequency domain resource is 35 RBs, (6+35)mod4=3, then the size of the last PRG of BWP1 in the fourth frequency domain resource is 3; if the size (bandwidth) of BWP1 in the fourth frequency domain resource is 32 RBs, (6+30)mod4=0, then the size of the last PRG of BWP1 in the fourth frequency domain resource is 4.

[0324] For each frequency domain resource corresponding to each BWP in a uni-carrier, the size of the first PRG and the size of the last PRG can be applied to other calculation relationships based on the correspondence between BWP, frequency domain resources and reference RB.

[0325] Optionally, the first information can indicate the PRG granularity of the BWP, where the size of the first PRG is equal to the PRG granularity. For example, if BWP0 does not configure the size of the first PRG and the granularity P0 is 4, then starting from the first PRG, RBs are allocated sequentially according to the rule that each PRG contains 4 RBs.

[0326] Optionally, the first information may also indicate the size of the first PRG of the BWP, and the first PRG is determined according to the size of the first PRG. The size of the first PRG in the first information may be the same as or different from the granularity. If the resource configuration information of BWP1 indicates that the size of the first PRG is 1 and the granularity P0 is 2, then the first PRG includes 1 RB, and starting from the second PRG, each PRG is allocated sequentially according to the rule that it contains 2 RBs.

[0327] Optionally, a BWP can correspond to a reference RB0 and the size of a PRG. For example, as shown in Figure 6b, the uni-carrier includes BWP0, BWP1, and BWP2, and the corresponding first information includes {(0th reference RB0, P0), (1st reference RB0, P1), (2nd reference RB0, P1)}, where the 0th reference RB0 is the reference RB0 of BWP0, corresponding to the starting RB of BWP0. The 1st reference RB0 is the reference RB0 of BWP1, and can be the frequency domain offset (offset7) of the first RB of BWP1 relative to the starting RB of the uni-carrier. Similarly, the 2nd reference RB0 is the starting RB of BWP2, and can be the frequency domain offset (offset8) of the first RB of BWP2 relative to the starting RB of the uni-carrier.

[0328] Optionally, the i-th BWP (BWP) in the uni-carrier i Taking a reference RB0 and a PRG granularity indicator as an example, BWP iIt includes multiple PRGs, numbered sequentially as PRG0, PRG1, PRG2, ..., PRG j The size of the PRG should be referenced as follows:

[0329] Size of the first PRG: in, For BWP i The reference RB0 is offset from the starting RB of the uni-carrier by the number of RBs; P is the BWP. i PRG granularity.

[0330] Size of the last PRG: if but otherwise, in, For BWP i The bandwidth, i.e., BWP i The number of RBs included.

[0331] Other PRG sizes: P

[0332] For example, in Figure 6b, the reference RB0 of BWP0 has an RB number offset of 0 relative to the starting RB of the uni-carrier, and the size of the first PRG is equal to the granularity, which is 4; the reference RB0 of BWP1 has an RB number offset of 9 relative to the starting RB of the uni-carrier. The value is 9; that is, the preceding RB0-RB8 are not within the range of BWP1; if the granularity is 2, the size of the first PRG is: 2-9mod2=2-1=1.

[0333] Example of the size of the last PRG of BWP1: If the size of BWP1 is 33, (9+33)mod2=0, then the size of the last PRG is P; if the size of BWP1 is 32, (9+32)mod2=1, then the size of the last PRG is 1.

[0334] Regarding the size of the first PRG in each frequency domain resource corresponding to BWP, other calculation relationships can also be applied based on the correspondence between BWP and frequency domain resources.

[0335] Optionally, a BWP can correspond to the size of multiple reference RB0s and / or multiple PRGs. A BWP can also correspond to one or more frequency domain resources, as shown in the method for determining the PRG size in the embodiment of Figure 5.

[0336] A BWP can belong to a uni-carrier, and its PRG can be configured and determined using the methods shown in Figures 6a and 5a. Furthermore, a BWP can include one or more frequency bands, in which case the PRG can be configured and determined using the method shown in Figure 5b; or a BWP can include one or more component carriers, in which case the PRG can be configured and determined using the method shown in Figure 5c.

[0337] It should be noted that the various methods for configuring and determining PRGs described above can be used individually or in combination. For example, the methods shown in the embodiments of Figures 3 and 5a, or the methods shown in the embodiments of Figures 4 and 6a, can be combined to configure and determine multiple PRGs in a uni-carrier.

[0338] The methods provided in the embodiments of this application have been described in detail above with reference to several accompanying drawings. The apparatus provided in the embodiments of this application will now be described with reference to the accompanying drawings.

[0339] Figures 7 to 10 are schematic block diagrams of possible apparatuses provided in embodiments of this application. One apparatus provided in an embodiment of this application is shown in Figure 7. The apparatus 700 includes a transceiver unit 610 and a processing unit 620.

[0340] One possible design is that the device 700 is used to implement the function of the first device in the method embodiment shown in FIG3 above. For example, the device 700 may correspond to the first device in FIG3.

[0341] For example, the processing unit 720 is used to acquire the first information, and the transceiver unit 710 is used to send the first information.

[0342] One possible design is that device 700 is used to implement the function of the second device in the method embodiment shown in FIG3 above. For example, device 700 may correspond to the second device in FIG3.

[0343] For example, the processing unit 720 is used to determine a plurality of precoded physical resource groups based on the first information, and the transceiver unit 710 is used to receive the first information.

[0344] It is understood that the division of units in the above-described device is merely a logical functional division. Each function can correspond to a functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated into a single physical entity, or they can be distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0345] Figure 8 is another schematic block diagram of the device provided in an embodiment of this application. As shown in Figure 8, the device 800 includes one or more processors 810. The processor 810 may be a general-purpose processor or a special-purpose processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the device (e.g., a vehicle or a chip), execute software programs, and process data from the software programs.

[0346] Optionally, in one design, processor 810 may include a computer program (also referred to as code or instructions) that can be run on processor 810, causing device 800 to perform the method executed by the first or second device in the above method embodiments. In yet another possible design, device 800 includes circuitry (not shown in FIG8) for implementing the functions of the first or second device in the above method embodiments.

[0347] For example, processor 810 can be used to execute a computer program in memory to implement the steps performed by the first or second device in the method embodiment shown in FIG3 or FIG4.

[0348] Optionally, the device 800 may include one or more memories 820 storing computer programs (sometimes referred to as code or instructions) that can be run on the processor 810, causing the device 800 to perform the methods performed by the first or second device in the above embodiments.

[0349] Optionally, the processor 810 and / or memory 820 may also store data. The processor and memory may be configured separately or integrated together.

[0350] Optionally, the device 800 may also include a communication interface 830. The processor 810, sometimes referred to as a processing unit, controls the device (e.g., the first device or the second device). The communication interface 830, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to implement the transceiver function of the device; for example, the communication interface 830 can be used to receive first configuration information.

[0351] Optionally, the device 800 also includes a communication interface 830. The processor 810 and the communication interface 830 are coupled to each other. It is understood that the communication interface 830 can be a transceiver or an input / output interface.

[0352] When device 800 is used to implement the method shown in FIG3 or FIG4, processor 810 can be used to execute the functions of processing unit 720, and communication interface 830 can be used to execute the functions of transceiver unit 710. Whether communication interface 830 is used for sending or receiving depends on whether the scheme executed by device 800 is used to perform a sending action or a receiving action.

[0353] When the aforementioned device 700 is a chip applied to the second device, the chip implements the functions of the second device in the above method embodiments. The chip of the second device receives signals from other modules (such as radio frequency modules or antennas) in the second device, and these signals may be sent from the first device to the second device; or, the chip of the second device sends signals to other modules (such as radio frequency modules or antennas) in the second device, and these signals may be sent from the second device to the first device.

[0354] When the aforementioned device 800 is a chip applied to the first device, the chip implements the functions of the first device in the above method embodiments. The chip of the first device receives signals from other modules in the first device, and these signals may be sent to the first device by the second device; or, the chip of the first device sends signals to other modules in the first device, and these signals may be sent from the first device to the second device.

[0355] It is understood that when the device 800 is a first device or a second device, the communication interface 830 can be a transceiver, specifically including a transmitter and a receiver, with the transmitter used to send signals and the receiver used to receive signals. When the device 800 is a chip applied to the first device or the second device, the communication interface 830 can be an input / output circuit, wherein the input circuit can be used for receiving and the output interface can be used for sending.

[0356] Optionally, the device 800 also includes a power supply circuit for supplying power to the device 800.

[0357] Figure 9 is a schematic diagram of the communication device provided in an embodiment of this application. As shown in Figure 9, the communication device 900 can be applied to the system shown in Figure 1 to perform the function of the second device in the method embodiment shown in Figure 3 or Figure 4. As shown, the communication device 900 includes a processor 901 and a transceiver 902. Optionally, the communication device 900 also includes a memory 903. The processor 901, transceiver 902, and memory 903 can communicate with each other through internal connection channels to transmit control and / or data signals. The memory 903 is used to store computer programs, and the processor 901 is used to call and run the computer programs from the memory 903 to control the transceiver 902 to transmit and receive signals. Optionally, the terminal device 900 may also include an antenna 904 for transmitting uplink data or uplink control signaling output by the transceiver 902 via wireless signals.

[0358] The processor 901 and memory 903 described above can be combined into a single processing device. The processor 901 executes the program code stored in the memory 903 to achieve the aforementioned functions. In specific implementations, the memory 903 can be integrated into the processor 901 or be independent of the processor 901. The processor 901 can correspond to the processing unit in FIG7 or the processor in FIG8.

[0359] The transceiver 902 described above can correspond to the transceiver unit in Figure 7 or the communication interface in Figure 8. The transceiver 902 may include a receiver (or receiver circuit) and a transmitter (or transmitter circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0360] It should be understood that the communication device 900 shown in FIG9 can implement the various processes involving the first or second device in the method embodiments shown in FIG3 or FIG4. The operation and / or function of each module in the communication device 900 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments; to avoid repetition, detailed descriptions are appropriately omitted here.

[0361] The processor 901 described above can be used to perform the actions implemented internally by the first or second device as described in the preceding method embodiments, while the transceiver 902 can be used to perform the actions described in the preceding method embodiments, such as the first device sending to the second device or the second device receiving from the first device. For details, please refer to the descriptions in the preceding method embodiments; they will not be repeated here.

[0362] Optionally, the communication device 900 may further include a power supply 905 for providing power to various devices or circuits in the communication device.

[0363] In addition, to further enhance the functionality of the communication device, the communication device 900 may also include one or more of the following: an input unit 906, a display unit 907, an audio circuit 908, a camera 909, and a sensor 910. The audio circuit may also include a speaker 908a, a microphone 908b, etc.

[0364] Figure 10 is a schematic diagram of the structure of the first device provided in an embodiment of this application, such as a schematic diagram of a base station. The base station 1000 can be applied to the system shown in Figure 1 to perform the functions of the network device in the method embodiment shown in Figure 3. As shown, the base station 1000 may include one or more of the following: one or more (DU+RU) 1010s and one or more CUs 1020s. The CU 1020 can communicate with the next-generation core (NG core). The DU may include at least one antenna 1011, at least one radio frequency unit 1012, at least one processor 1013, and at least one memory 1014. The DU is mainly used for transmitting and receiving radio frequency signals, converting radio frequency signals to baseband signals, and performing some baseband processing. The CU 1020 may include at least one processor 1022 and at least one memory 1021. The CU 1020 and the DU can communicate through an interface. The control plane (CP) interface can be Fs-C, such as F1-C, and the user plane (UP) interface can be Fs-U, such as F1-U. DUs and RUs can work together to implement the functions of the physical (PHY) layer. A DU can be connected to one or more RUs. The functions of DUs and RUs 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 and RF functions in the PHY layer. Higher-level functions in the PHY layer may include a portion of the PHY layer's functions, which are closer to the medium access control (MAC) layer, while lower-level functions in the PHY layer may include another portion of the PHY layer's functions, which are closer to the mid-RF side.

[0365] The CU 1020 is mainly used for baseband processing and base station control. The DU and CU 1020 can be physically installed together or separately, i.e., a distributed base station. The CU 1020 is the control center of the base station, corresponding to the processing unit in Figure 7 or the processor in Figure 8, and can also be called a processing unit, mainly used to complete baseband processing functions. For example, the CU 1020 can be used to control the base station to execute the network device operation flow described in the above method embodiments.

[0366] Specifically, baseband processing on the CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the Packet Data Convergence Protocol (PDCP) layer and above are set in the CU, while the functions of protocol layers below PDCP, such as the Radio Link Control (RLC) layer and the MAC layer, are set in the DU. Alternatively, the CU may implement the functions of the RRC and PDCP layers, while the DU may implement the functions of the RLC, MAC, and PHY layers.

[0367] Alternatively, the base station 1000 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. A DU may include at least one processor 1013 and at least one memory 1014, an RU may include at least one antenna 1011 and at least one radio frequency unit 1012, and a CU may include at least one processor 1022 and at least one memory 1021.

[0368] In one example, the CU 1020 can be composed of one or more single boards. These boards can collectively support a single access-indicating radio access network (such as a 5G network), or they can each support radio access networks with different access standards (such as LTE, 5G, or other networks). The memory 1021 and processor 1022 can serve one or more single boards. That is, each single board can have its own memory and processor, or multiple single boards can share the same memory and processor. Furthermore, each single board can also have necessary circuitry. Similarly, the DU can be composed of one or more single boards. These boards can collectively support a single access-indicating radio access network (such as a 5G network), or they can each support radio access networks with different access standards (such as LTE, 5G, or other networks). The memory 1014 and processor 1013 can serve one or more single boards. That is, each single board can have its own memory and processor, or multiple single boards can share the same memory and processor. Furthermore, each single board can also have necessary circuitry.

[0369] It should be understood that the base station 1000 shown in Figure 10 can implement the various processes involving the first device in the method embodiment shown in Figure 3. The operation and / or function of each module in the base station 1000 are respectively for implementing the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiment; to avoid repetition, detailed descriptions are appropriately omitted here.

[0370] It should be understood that the base station 1000 shown in Figure 10 is only one possible architecture for the first device and should not be construed as limiting the embodiments of this application. The method provided in the embodiments of this application can be applied to first devices with other architectures. For example, first devices including CU, DU, and AAU, etc. The embodiments of this application do not limit the specific architecture of the first device.

[0371] It should be understood that Figure 10 is merely an example and not a limitation, and the first device may not depend on the structure shown in Figure 10. For example, the first device may also include an AAU, a CU and / or a DU, or a BBU and an adaptive radio unit (ARU). The embodiments of this application are not limited in this respect.

[0372] The aforementioned CU and / or DU can be used to perform the actions implemented internally by the first device as described in the preceding method embodiments, while the AAU can be used to perform the actions described in the preceding method embodiments whereby the first device sends data to the processing device or the processing device receives data from the first device. Please refer to the descriptions in the preceding method embodiments for details, which will not be repeated here.

[0373] The above-described method embodiments can be applied to a processor, or implemented by a processor. A processor may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed through integrated logic circuits in the processor's hardware or through software instructions.

[0374] The aforementioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0375] The steps of the method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in mature storage media in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0376] The memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0377] This application also provides a chip system, which includes at least one processor for supporting the implementation of the functions of the first or second device involved in any of the above method embodiments, such as receiving, sending, or processing information involved in the above methods.

[0378] In one possible design, the chip system also includes a memory for storing computer program instructions and data, which may be located inside or outside the processor.

[0379] The chip system can consist of chips or include chips and other discrete components.

[0380] This application also provides a computer program product, which includes a computer program (also referred to as code or instructions). When the computer program is run, the method executed by the second device in the embodiment shown in FIG3 or FIG4 is executed, or the method executed by the first device is executed.

[0381] This application also provides a computer-readable storage medium storing a computer program (also referred to as code or instructions). When the computer program is run, the method executed by the second device in the embodiment shown in FIG3 or FIG4, or the method executed by the first device, is executed.

[0382] This application also provides a communication system, which includes the aforementioned second device and first device.

[0383] The methods provided in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, they can be implemented, in whole or in part, in the form of a computer program product. This computer program product may include one or more computer instructions. When these 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 may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may 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 may be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic disk), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0384] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0385] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0386] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0387] The unit described as a separate component may or may not be physically separate. The component shown as a unit may or may not be a physical unit; that is, it may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0388] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0389] If this function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application embodiment, or part of it, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0390] In the various embodiments of this application, unless otherwise specified or logically conflicting, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

Claims

1. A communication method characterized by comprising: The method includes: Obtain first information, which is used to determine multiple precoded physical resource groups in a unified carrier. The first information is used to indicate: the size of N reference resource blocks and / or N precoded physical resource groups, where N is an integer greater than 1. Send the first message.

2. The method of claim 1, wherein, The unified carrier includes multiple frequency domain resources in one or more frequency bands.

3. The method of claim 1 or 2, wherein, For the i-th reference resource block among the N reference resource blocks, one or more of the following instructions are provided: The frequency domain position of the i-th reference resource block in the unified carrier; The first frequency domain offset includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the unified carrier; The frequency domain position of the starting reference resource block of the frequency band corresponding to the i-th reference resource block; The second frequency domain offset includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the frequency band corresponding to the i-th reference resource block; The frequency domain position of the starting reference resource block of the component carrier corresponding to the i-th reference resource block; The third frequency domain offset includes: the frequency domain offset between the i-th reference resource block and the starting reference resource block of the component carrier corresponding to the i-th reference resource block.

4. The method of claim 1 or 2, wherein, The first information is used to indicate multiple precoded physical resource groups in the bandwidth portion (BWP), wherein the BWP includes one of multiple BWPs corresponding to a uniform carrier.

5. The method of claim 4, wherein, For the j-th reference resource block among the N reference resource blocks, the j-th reference resource block is indicated by any one or more of the following: Frequency domain offset between the j-th reference resource block and the starting reference resource block of the unified carrier; The position of the starting reference resource block of the BWP corresponding to the j-th reference resource block; The frequency domain offset between the j-th reference resource block and the starting reference resource block of the BWP corresponding to the j-th reference resource block.

6. The method of claim 4 or 5, wherein, The first message also indicates the size of the first precoded physical resource group in the BWP.

7. The method of any one of claims 1 to 6, wherein, The method further includes: Send a second message; the second message is used to indicate the size of M reference resource blocks and / or M precoded physical resource groups, where M is greater than N; The step of obtaining the first information includes: obtaining the first information based on the second information.

8. The method of claim 7, wherein, The second information is carried in system information or higher-layer signaling, and / or the first information is carried in physical layer signaling.

9. The method of any one of claims 1 to 8, wherein, The first information is carried in system information or high-level signaling.

10. A method of communication, the method comprising: The method includes: Receive first information, the first information being used to determine multiple precoded physical resource groups in a unified carrier, the first information being used to indicate: N reference resource blocks, and / or the size of N precoded physical resource groups, where N is an integer greater than 1; The plurality of precoded physical resource groups are determined based on the first information.

11. The method of claim 10, wherein, The unified carrier is used to support multiple frequency domain resources in one or more frequency bands.

12. The method of claim 10 or 11, wherein, For the m-th reference resource block among the N reference resource blocks, the m-th reference resource block is determined based on the first information by any one or more of the following: The frequency domain position of the m-th reference resource block in the unified carrier; The first frequency domain offset includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the unified carrier; The frequency domain position of the starting reference resource block of the frequency band corresponding to the m-th reference resource block; The second frequency domain offset includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the frequency band corresponding to the m-th reference resource block; The frequency domain position of the starting reference resource block of the component carrier corresponding to the m-th reference resource block; The third frequency domain offset includes: the frequency domain offset between the m-th reference resource block and the starting reference resource block of the component carrier corresponding to the reference resource block.

13. The method of claim 10 or 11, wherein, The first information is used to indicate multiple precoded physical resource groups in a BWP, wherein the BWP includes one of multiple BWPs corresponding to a unified carrier.

14. The method of claim 13, wherein, For the nth reference resource block among the N reference resource blocks, the nth reference resource block is determined by any one or more of the following: Frequency domain offset between the nth reference resource block and the starting reference resource block of the unified carrier; The position of the starting reference resource block of the BWP corresponding to the nth reference resource block; The frequency domain offset between the nth reference resource block and the starting reference resource block of the BWP corresponding to the nth reference resource block.

15. The method as described in claim 13 or 14, characterized in that, The first message is also used to indicate: the size of the first precoded physical resource group in the BWP, and to determine the first precoded physical resource group in the BWP based on the size of the first precoded physical resource group.

16. The method according to any one of claims 10 to 15, characterized in that, The method further includes: Receive second information; the second information is used to indicate the size of M reference resource blocks and / or M precoded physical resource groups, where M is greater than N; The plurality of precoded physical resource groups are determined based on the second information and the first information.

17. The method as described in claim 16, characterized in that, The first information is used to indicate the size of the N candidate reference resource blocks and / or the N precoded physical resource groups in the second information; The plurality of precoded physical resource groups are determined based on the size of the N reference resource blocks and / or the N precoded physical resource groups.

18. The method of claim 16 or 17, wherein, The second information is carried in system information or higher-layer signaling, and / or the first information is carried in physical layer signaling.

19. The method according to any one of claims 10 to 15, characterized in that, The first information is carried in system information or high-level signaling.

20. A communication device, characterized in that, The processor includes a processor coupled to a memory for storing computer programs, and the processor for executing the computer programs stored in the memory. So that the communication device performs the method as described in any one of claims 1 to 9; or, So that the communication device performs the method as described in any one of claims 10 to 19.

21. A communication device, characterized in that, It includes a processor and a communication interface, wherein the processor is used to control the communication interface. To implement the method as described in any one of claims 1 to 9; or, To implement the method as described in any one of claims 10 to 19.

22. A computer-readable storage medium, characterized in that, The computer stores instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 9, or cause the computer to perform the method as described in any one of claims 10 to 19.

23. A computer program product, characterized in that, The computer program product includes: a computer program that, when run, causes a computer to perform the method of any one of claims 1 to 9, or causes a computer to perform the method of any one of claims 10 to 19.

24. A chip system, characterized in that, The chip system is applied to an electronic device, the chip system including one or more processors, the one or more processors being configured to invoke computer instructions to cause the electronic device to perform the method as described in any one of claims 1 to 9, or to cause the electronic device to perform the method as described in any one of claims 10 to 19.

25. A communication system, characterized in that, Includes a first device and a second device. The first device is used to perform the method as described in any one of claims 1 to 9, and the second device is used to perform the method as described in any one of claims 10 to 19.

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