Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus, applied to the technical field of communications. The communication method comprises: a terminal receives configuration information by means of a camping frequency point, the configuration information indicating a plurality of capacity frequency points and one or more beams associated with each of the plurality of capacity frequency points, and the capacity frequency points being used for data transmission; and the terminal transmits first information by means of the camping frequency point, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, and the first capacity frequency point being a frequency point among the plurality of capacity frequency points indicated by the configuration information. The method is conducive to ensuring the data transmission efficiency of the terminal.

Description

Communication methods and communication devices

[0001] This application claims priority to Chinese Patent Application No. 202411629555.2, filed on November 13, 2024, entitled "Communication Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to communication methods and communication devices. Background Technology

[0003] In a multi-layer network scenario, a cell can have multiple frequency points. Network devices can schedule multiple frequency points within a cell. For example, low-frequency points can be scheduled to ensure network coverage and terminal access, while high-frequency points can be scheduled for large-volume data transmission from terminals. Since low-frequency points provide camping and access-related services, they can be called camping layer frequencies. Since high-frequency points provide capacity transmission services, they can be called capacity layer frequencies. Terminals can receive paging messages or wake-up signals through camping layer frequencies when idle or inactive, and perform data transmission through capacity layer frequencies when connected. Network devices can transmit data through one or more beams on a capacity layer frequency. Because synchronization signal blocks (SSBs) are transmitted on camping frequencies but not on capacity frequencies, network devices cannot determine the signal quality of one or more beams associated with a capacity frequency. In this case, the signal quality of the beams configured for the terminal by the network device may be poor, affecting the reliability of data transmission. Summary of the Invention

[0004] This application provides a communication method and a communication device, which helps to ensure the reliability of data transmission of the terminal or improve the efficiency of data transmission.

[0005] Firstly, this application provides a communication method that can be executed by a terminal. The terminal (or terminal device) can refer to the terminal itself, or a processor, module, chip, or chip system within the terminal that implements the method. The method includes: the terminal receiving configuration information through a residing frequency point, and transmitting first information through the residing frequency point. The configuration information indicates multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points, the capacity frequency points being used for data transmission. The first information indicates a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of the multiple capacity frequency points indicated by the configuration information.

[0006] Based on the method described in the first aspect, the terminal can report a first capacity frequency point and a specific beam (the first beam) among the beams associated with the first capacity frequency point through first information, facilitating the network's assessment of beam quality from the terminal side. For example, the first beam can be the best beam, the worst beam, or an intermediate beam among the beams associated with the first capacity frequency point. The intermediate beam refers to the beam located in the middle after sorting the beams associated with the first capacity frequency point from best to worst or from worst to best. When the first beam is the best beam associated with the first capacity frequency point, the network device can subsequently configure the best beam associated with the first capacity frequency point to the terminal for data transmission, which helps improve the efficiency of terminal data transmission. Alternatively, when the first beam is the worst beam or an intermediate beam, the network device can subsequently avoid configuring the worst beam associated with the first capacity frequency point to the terminal for data transmission, which helps ensure the reliability of terminal data transmission.

[0007] In some possible implementations, the first beam is the optimal beam associated with the first capacity frequency point. The method further includes: the terminal receiving second information, which instructs data transmission based on the first capacity frequency point and the first beam associated with it. Based on this implementation, the terminal transmits data based on the first capacity frequency point and the first beam associated with it, which helps improve data transmission efficiency.

[0008] In some possible implementations, the first information includes a first random access preamble, which is used to indicate the first beam associated with the first capacity frequency point. In this way, when a terminal initiates random access, the network device can determine the first capacity frequency point and the first beam associated with the first capacity frequency point through the first random access preamble and the association between the random access preamble and the beam, which helps to save signaling indication overhead.

[0009] In some possible implementations, the first information is carried in uplink small data transmission (SDT).

[0010] In some possible implementations, the time-domain resources and / or frequency-domain resources where the first information is located are used to indicate the first beam associated with the first capacity frequency point. This approach, implicitly indicating the first beam associated with the first capacity frequency point through the time-frequency resources where the first information is located, helps reduce signaling indication overhead.

[0011] In some possible implementations, the method further includes: the terminal measuring a reference signal received via one or more beams associated with the first capacity frequency at a first capacity frequency point to determine the first beam. For example, if the first beam is the optimal beam associated with the first capacity frequency point, the terminal can determine the beam with the highest signal quality among the beams associated with the first capacity frequency point as the first beam. As another example, if the first beam is the worst beam associated with the first capacity frequency point, the terminal can determine the beam with the lowest signal quality among all the beams associated with the first capacity frequency point as the first beam.

[0012] In some possible implementations, the configuration information also indicates the location of the time-domain and / or frequency-domain resources of the reference signal. With this implementation, the terminal can measure the reference signal on the time-domain and / or frequency-domain resources indicated by the configuration information to obtain the signal quality of each beam in one or more beams associated with the first capacity frequency point, thereby determining the first beam.

[0013] In some possible implementations, the configuration information further indicates the location of the time-domain and / or frequency-domain resources of the reference signal, including: the configuration information further indicates a first time-domain offset and / or a first frequency-domain offset, where the first time-domain offset is the interval between the time-domain resources where the synchronization signal block (SSB) of the stationed frequency point is located and the time-domain resources where the reference signal is located, and the first frequency-domain offset is the interval between the frequency-domain resources where the SSB of the stationed frequency point is located and the frequency-domain resources where the reference signal is located. Here, the SSB of the stationed frequency point refers to the SSB received by the terminal on the stationed frequency point. Based on this implementation, the terminal can accurately determine the location of the time-domain and / or frequency-domain resources of the reference signal according to the first time-domain offset and the first frequency-domain offset, which helps to reduce signaling indication overhead.

[0014] In some possible implementations, the time-domain and / or frequency-domain resources of the SSB at the camping frequency are used to indicate the time-domain and / or frequency-domain resources of the reference signal. There is an association between the time-domain and / or frequency-domain resources of the SSB at the camping frequency and the time-domain and / or frequency-domain resources of the reference signal. The terminal can determine the time-domain and / or frequency-domain resources of the reference signal based on the time-domain and / or frequency-domain resources of the SSB received at the camping frequency and the first association. Based on this implementation, since the frequency range of the camping frequency is usually low and can be associated with a wide beam, the SSB does not need to perform beam scanning. Therefore, associating the time-domain and / or frequency-domain resources of the SSB with the time-domain and / or frequency-domain resources of the reference signal, and indicating the time-domain and / or frequency-domain resources of the reference signal through the time-domain and / or frequency-domain resources of the SSB, helps to reduce signaling indication overhead.

[0015] In some possible implementations, the configuration information also indicates one or more of the following: the bandwidth of the first capacity frequency, the subcarrier spacing of the first capacity frequency, the initial activation bandwidth of the first capacity frequency, the network standard of the first capacity frequency, or the resource configuration of the reference signal on the first capacity frequency.

[0016] In some possible implementations, the time-frequency resource indicator of the SSB stationed at a frequency point indicates one or more of the following: the number of ports used to transmit reference signals, the number of beams used to transmit reference signals, the transmission power of the reference signals, or the number of repetitions of the reference signals. This approach helps reduce signaling indication overhead.

[0017] In some possible implementations, this configuration information is carried in a system message.

[0018] Secondly, this application provides a communication method that can be executed by a network device. The network device (or network apparatus) can refer to the network device itself, or to a processor, module, chip, or chip system within the network device that implements the method. The method includes: the network device transmitting configuration information via a residing frequency point, the configuration information indicating multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points, the capacity frequency points being used for data transmission; and the network device receiving first information via the residing frequency point, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of the multiple capacity frequency points indicated by the configuration information.

[0019] In some possible implementations, the first beam is the optimal beam associated with the first capacity frequency point. The method further includes: the network device sending second information indicating data transmission based on the first capacity frequency point and the first beam associated with it. In this approach, the network device transmits data based on the first capacity frequency point and the optimal beam associated with it, which helps improve data transmission efficiency.

[0020] In some possible implementations, the method further includes: the network device transmitting a reference signal at a first capacity frequency point via one or more beams associated with the first capacity frequency point, the reference signal being used by the terminal to determine the first beam.

[0021] The second aspect of this application corresponds to the technical solution of the first aspect, and the possible implementation methods of the second aspect and the corresponding beneficial effects can be found in the description of the first aspect.

[0022] Thirdly, embodiments of this application provide a communication device for executing the method in any possible implementation of either the first or second aspect. The communication device includes modules for executing the method in any possible implementation of either the first or second aspect.

[0023] Fourthly, embodiments of this application provide a communication device including a processing circuit for executing the method in any possible implementation of the first or second aspect. The processing circuit executes a program, and when the program is executed, the method shown in any possible implementation of the first or second aspect is performed.

[0024] In one possible implementation, the communication device further includes a memory for storing the program.

[0025] In one possible implementation, the memory is located outside the aforementioned communication device.

[0026] In one possible implementation, the memory is located within the aforementioned communication device.

[0027] Furthermore, the processing circuitry and memory can be integrated into a single device; that is, the processing circuitry and memory can be combined. For example, the communication device can be a chip.

[0028] In one possible implementation, the communication device further includes a transceiver circuit for receiving information (or inputting information) or sending information (or outputting information).

[0029] Fifthly, embodiments of this application provide a communication device, which includes a processing circuit and a transceiver circuit. The processing circuit can be a logic circuit, and the transceiver circuit can be an interface circuit. The logic circuit and the interface are coupled. The interface circuit is used to input and / or output information, and the logic circuit is used to execute the method of any possible implementation of the first or second aspect.

[0030] In a sixth aspect, this application provides a communication system, including a communication device for performing the method described in the first aspect and a communication device for performing the method described in the second aspect.

[0031] In a seventh aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program that, when run on a computer, causes the methods shown in any possible implementation of the first or second aspect to be executed.

[0032] Eighthly, embodiments of this application provide a computer program product that, when run on a computer, causes the method shown in any possible implementation of the first or second aspect to be executed. Attached Figure Description

[0033] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0034] Figure 2 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0035] Figure 3A is a schematic diagram of time-domain offset and frequency-domain offset provided in an embodiment of this application;

[0036] Figure 3B is a schematic diagram of time-domain offset and frequency-domain offset provided in an embodiment of this application;

[0037] Figure 3C is a schematic diagram of time-domain offset and frequency-domain offset provided in an embodiment of this application;

[0038] Figure 4 is a schematic diagram of the association between SSB and reference signal provided in an embodiment of this application;

[0039] Figure 5A is a schematic diagram of time-domain resources and beam association provided in an embodiment of this application;

[0040] Figure 5B is a schematic diagram of frequency domain resources and beam association provided in an embodiment of this application;

[0041] Figure 5C is a schematic diagram of time-frequency resources and beam association provided in an embodiment of this application;

[0042] Figure 6 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0043] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0044] Figure 8 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0045] To facilitate understanding of the technical solution of this application, the application will be further described below with reference to the accompanying drawings.

[0046] The terms "first" and "second," etc., used in the specification, claims, and drawings of this application are used only to distinguish different objects and not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0047] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In this application, "at least one (item)" refers to one or more, "more than one" refers to two or more, "at least two (items)" refers to two or three or more, and "and / or" is used to describe the relationship between related objects, indicating that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. "Or" indicates that there can be two relationships, such as only A exists and only B exists; when A and B are not mutually exclusive, it can also mean that there are three relationships, such as only A exists, only B exists, and both A and B exist simultaneously. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items. For example, at least one (item) of a, b, or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0049] In 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 can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface. 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, traces, or interfaces.

[0050] In this application, "...when" and "if" both refer to the corresponding processing that will be carried out under certain objective circumstances, and are not limited to a specific time. They do not require a judgment action during implementation, nor do they imply any other limitations.

[0051] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0052] In this application, "instruction" may include: direct instruction, or indirect instruction, or explicit instruction, or implicit instruction.

[0053] In this application, "including" can include: direct inclusion, indirect inclusion, explicit inclusion, or implicit inclusion.

[0054] The prior art may change as the technical solutions evolve, and the technical solutions provided in this application are not limited to the prior art provided.

[0055] It should be noted that different embodiments or some steps (e.g., any one or more steps) in different embodiments of this application can be combined with each other to form new embodiments. It should also be noted that the scope of this application is not limited to including optional steps in a certain embodiment, mandatory steps in a certain embodiment, or both optional and mandatory steps in a certain embodiment.

[0056] It should be noted that, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced in each other.

[0057] It should be noted that the order of the steps in the embodiments of this application is not limited by this application.

[0058] It should be noted that the order in which different conditions are judged in the embodiments of this application is not limited by this application.

[0059] It should be noted that the terms "after" and "time" in this application do not strictly limit the specific point in time.

[0060] It should be noted that the nouns and terms used in this application are merely examples and may be other names, which are not limited in this application.

[0061] The following describes the communication system involved in the embodiments of this application.

[0062] The technical solutions provided in this application can be applied to various communication systems, such as: 5th generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, wireless local area network (WLAN) systems, satellite communication systems, future communication systems, or integrated systems of multiple systems. The technical solutions provided in this application can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0063] The method provided in this application can be applied between two entities in a communication system, such as one entity sending information to or receiving information sent by the other entity. In a wireless communication system, communication devices are included, and these devices can communicate wirelessly using air interface resources. Air interface resources may include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources; this application does not limit this. For example, the aforementioned two entities may include a network device and a terminal device, or may include a chip that can be placed in a network device and a chip that can be placed in a terminal device, etc. Of course, as standards advance, other types of entities may emerge subsequently; this application does not limit this.

[0064] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. In Figure 1, the communication system includes network devices and terminals. The terminal can be located within the coverage area of ​​one or more cells provided by the network device (such as cell 1 and cell 2 in Figure 1), and the number of cells serving the terminal can be one or more, that is, the number of serving cells can be one or more.

[0065] When there are multiple serving cells, the terminal communicates based on carrier aggregation (CA), dual connectivity (DC), or cooperative multipoint transmission methods. When the terminal moves, it can select or hand over cells between different cells, which can be distributed under a single network device, i.e., co-located deployment. For example, as shown in Figure 1(a), network device 1 manages cells 1 and 2. Alternatively, different cells can be distributed under different network devices, i.e., not co-located (or cross-site). For example, as shown in Figure 1(b), network device 1 manages cell 1, and network device 2 manages cell 2. This application does not limit this.

[0066] Optionally, the number of network devices and terminals in Figure 1 is merely illustrative and should not be considered a specific limitation of this application. In specific implementations, the communication system may include fewer or more network devices, and the coverage area of ​​each network device may include more or fewer terminal devices; this application does not limit this. The architecture shown in Figure 1 is merely an example and does not impose limitations on the network architecture applicable to this application. Any network architecture that allows communication between a network device and a terminal device is applicable to this application.

[0067] The following provides a detailed description of the terminals and network devices.

[0068] A terminal is a device with wireless transceiver capabilities, also known as a terminal device. A terminal can communicate with access network equipment (or access devices, or network devices as described below) in a radio access network (RAN). A terminal can also be referred to as user equipment (UE), access terminal, terminal, subscriber unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent, or user device, etc. In one possible implementation, the terminal can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or it can be deployed on water, including ships; or it can be deployed in the air, such as on airplanes, balloons, or satellites. In another possible implementation, the terminal can be a handheld device with wireless communication capabilities, vehicle-mounted device, wearable device, sensor, terminal in the Internet of Things (IoT), terminal in the Internet of Vehicles (IoV), drone, or any form of terminal in a 5G network or future network, etc., and this application embodiment does not limit this. In another possible implementation, the terminal can also be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in autonomous driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.

[0069] In this application embodiment, the device for implementing the terminal's functions can be a terminal itself; it can also be a device capable of supporting the terminal in implementing those functions, such as a chip system. This device can be installed in the terminal or used in conjunction with the terminal. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. For ease of description, the technical solutions provided in this application embodiment will be described below using a UE as an example when referring to some examples.

[0070] A network device can be a device deployed in a wireless access network to provide wireless communication services to terminals. This network device can also be called an access network device, access equipment, or RAN device, etc. For example, a network device can be a next-generation node B (gNB), a next-generation evolved node B (ng-eNB), or a network device in future communications. A network device can be any device with wireless transceiver capabilities, including but not limited to the base stations mentioned above (including base stations deployed on satellites). This network device can also be a device with base station functionality in future communication systems. As an example, this network device can be an access node, wireless relay node, or wireless backhaul node in a wireless-fidelity (Wi-Fi) system. As another example, this network device can be a wireless controller in a cloud radio access network (CRAN) scenario. As yet another example, this network device can be a wearable device or vehicle-mounted device capable of providing wireless communication services. As yet another example, this network device can also be a small cell, a transmission reception point (TRP) (or a transmit-receive node), etc. In systems using different wireless access technologies, the names of devices with network equipment functions may vary, and these will not be listed one by one in the embodiments of this application.

[0071] Network devices can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile network device, and one or more cells can move according to the location of the mobile network device. In other examples, a helicopter or drone can be configured to be used as a device to communicate with another network device.

[0072] In some network device deployments, the network device may include a central unit (CU) and a distributed unit (DU). For example, some protocol layer functions of the network device may be centrally controlled by the CU, while the remaining part or all of the protocol layer functions may be distributed in the DU, which is centrally controlled by the CU. In other network device deployments, the CU may be divided into a CU-control plane (CP) and a CU-user plane (UP). In still other network device deployments, the network device may also be an open radio access network (ORAN) architecture. When the network device is an ORAN architecture, it may be a functional entity or module within the ORAN. For example, the network device may be one or more of a CU, DU, or RU. In an ORAN system, the CU may also be called an open (O)-CU, the DU may also be called an O-DU, the CU-CP may also be called an O-CU-CP, and the CU-UP may also be called an O-CU-UP, etc. The network device deployment methods listed here are merely examples. As standard technologies evolve, network devices may have other deployment forms, and this application does not limit these.

[0073] In some deployments, multiple RAN nodes collaborate to assist terminals in achieving wireless access, with different RAN nodes each implementing a portion of the access network's functions. For example, RAN nodes can be CUs, DUs, CU-CPs, CU-UPs, or RUs. CUs and DUs can be configured separately or included in the same network element, such as an indoor 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).

[0074] RAN nodes can support one or more types of fronthaul interfaces, each corresponding to a DU and RU with different functions. If the fronthaul interface between the DU and RU is a Common Public Radio Interface (CPRI), the DU is configured to implement one or more baseband functions, and the RU is configured to implement one or more radio frequency functions. If the fronthaul interface between the DU and RU is another type of interface, relative to CPRI, it moves some downlink and / or uplink baseband functions—for example, for downlink, precoding, or one or more of inverse fast Fourier transform (IFFT) / adding a cyclic prefix (CP)—from the DU to the RU; and for uplink, digital beamforming, or one or more of fast Fourier transform (FFT) / removing CP—from the DU to the RU. In one possible implementation, this interface can be an enhanced common public radio interface (eCPRI). Under the eCPRI architecture, the partitioning methods between DU and RU are different, corresponding to different types (category, Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0075] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called 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. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.

[0076] Network devices and / or terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminals are located. Furthermore, terminals and network devices can be hardware devices, software functions running on dedicated hardware, or software functions running on general-purpose hardware, such as virtualization functions instantiated on a platform (e.g., a cloud platform), or entities that include dedicated or general-purpose hardware devices and software functions. This application does not limit the specific form of the terminals and network devices.

[0077] In this embodiment, the device for implementing the functions of the network device can be the network device itself; or it can be a device capable of supporting the network device in implementing the functions, such as a chip system. This device can be installed in the network device or used in conjunction with the network device.

[0078] The following explains the relevant terms used in the embodiments of this application:

[0079] I. Frequency

[0080] A frequency point refers to a segment of resources on a frequency band, or it can also be called a carrier, carrier group, frequency range, or frequency bandwidth.

[0081] 5G communication systems define two frequency ranges: FR1, also known as Sub-6 GHz (GHz), which includes frequencies below 6 GHz, and FR2, known as millimeter wave, which includes frequencies above 6 GHz. The system bandwidth and subcarrier spacing differ for each frequency range. FR1, with its lower frequency, offers better coverage, while FR2, with its higher frequency, provides greater bandwidth and capacity. In practical network deployment, considering both coverage and capacity, multi-frequency co-deployment can be adopted. For example, cells within FR1 and cells within FR2 can be deployed simultaneously in the same area.

[0082] Among them, a frequency point within FR1 can be called a low-frequency frequency point. A frequency point within FR2 can be called a high-frequency frequency point. Optionally, in this application, the way to distinguish between low-frequency and high-frequency frequencies is not limited to the two frequency point ranges defined by the 5G communication system. Any two frequency points with relatively high and low frequencies can be understood as low-frequency and high-frequency frequencies, that is, low-frequency and high-frequency frequencies are relative concepts.

[0083] A cell can have one or more frequency points. When a cell has only one frequency point, switching cells is equivalent to switching the operating frequency point. In a multi-layer network, a cell can have multiple frequency points, and these multiple frequency points can be uniformly scheduled within a single cell.

[0084] Low-frequency frequencies offer better coverage and can be used to provide network coverage. Optionally, the coverage area of ​​a stationary frequency point can be larger than that of a capacity frequency point. Terminals in idle or inactive states can receive paging messages and / or wake-up signals (WUS) on the stationary frequency point. The wake-up signal, also known as a low-power wake-up signal (LP-WUS), is a signal with wake-up functionality. For example, a wake-up signal can be used to wake up a single device or a group of devices, triggering the corresponding terminal to perform certain operations, including but not limited to updating system messages, receiving paging messages, initiating random access, and receiving disaster warning information—at least one of these. Therefore, low-frequency points can be referred to as stationary layer points, stationary points, overlay layer points, or basic layer points. These expressions can be used interchangeably, and the specific naming does not limit the scope of protection of this application. For ease of description, the term stationary point will be used in a detailed description below. Since a frequency point can be a carrier, a stationary point can also be a stationary carrier, a low-frequency carrier, an anchor carrier (anchor CC), an overlay layer carrier, a basic layer carrier, or a basic component carrier (BCC).

[0085] High-frequency frequencies have higher frequencies, larger bandwidths, and greater capacity. They can be used for data transmission. Active terminals can transmit data with network devices on capacity frequencies. Therefore, high-frequency frequencies can be called capacity layer frequencies or capacity frequencies; these two expressions are interchangeable, and the specific naming does not limit the scope of protection of this application. For ease of description, the term "resident frequency" will be used uniformly below. Since a frequency can be a carrier, a capacity frequency can be called a capacity layer carrier, capacity carrier, high-frequency carrier, or data component carrier (DCC).

[0086] A cell can have one or more frequency points. When a cell has only one frequency point, switching cells is equivalent to switching the operating frequency point. In a multi-layer network, a cell can have multiple frequency points, and these multiple frequency points can be uniformly scheduled within a single cell.

[0087] II. Beam

[0088] A beam is a communication resource that refers to a directional, specific transmission or reception effect created by an antenna array of a network device or terminal's transmitter or receiver. Using beams to transmit and receive signals can effectively increase the transmission distance.

[0089] Beams can be divided into transmit beams and receive beams. The technology for forming beams can be beamforming technology or other technologies. Beamforming includes transmit beamforming and receive beamforming. Specifically, beamforming technology can be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology, etc.

[0090] In this context, the transmit beam refers to the beamform formed by the transmitting end sending signals with certain beamforming weights, resulting in a spatially directional beam. For example, in the uplink direction, the transmitting end can be a terminal; in the downlink direction, the transmitting end can be a network device. The receive beam refers to the beamform formed by the receiving end receiving signals with certain beamforming weights, resulting in a spatially directional beam. Again, in the uplink direction, the receiving end can be a network device; in the downlink direction, the receiving end can be a terminal.

[0091] Transmit beamforming refers to the process of assigning a specific amplitude and phase to each antenna element of a transmitter with an antenna array. This gives the transmitted signal a certain spatial directivity, meaning that the signal power is high in some directions and low in others, with the direction of highest signal power being the direction of the transmitted beam. The antenna array consists of multiple antenna elements, and the specific amplitude and phase assigned are called beamforming weights.

[0092] Receiver beamforming refers to the process where, when a receiving device with an antenna array receives a signal, a specific amplitude and phase are assigned to each antenna element in the array. This makes the power gain of the received signal directional; that is, the power gain is high when receiving signals in certain directions, and low when receiving signals in other directions. The direction with the highest power gain is the direction of the received beam. The antenna array consists of multiple antenna elements, and the specific amplitude and phase assigned are called beamforming weights.

[0093] Using a specific transmit beam to transmit a signal means using a specific beamforming weight to transmit the signal. Using a specific receive beam to receive a signal means using a specific beamforming weight to receive the signal.

[0094] Optionally, the beam can be a wide beam, a narrow beam, or other types of beam.

[0095] Beams can be mapped to resources. For example, during beam measurement, network devices measure different beams by sending reference signals on different resources. The terminal then feeds back the measured quality to the network device, allowing the network device to determine the quality of the corresponding beam. During data transmission, beams can also be indicated by their corresponding resources. For instance, a network device uses the Transmission Configuration Index (TCI) field in its downlink control information (DCI) to indicate a transmission configuration indication-state. The terminal device then determines the beam corresponding to the reference resource based on the reference resource contained in that TCI-state.

[0096] Different beams can be considered as different resources, and the same or different information can be sent using (or through) different beams.

[0097] Beam pairs are based on the concept of beams. A beam pair typically includes a transmit beam at the transmitting end and a receive beam at the receiving end.

[0098] In communication systems, such as 5G New Radio (NR) systems, network devices and terminal devices can generate one or more transmit beams and one or more receive beams. Before transmitting data, network devices and terminal devices need to perform beam alignment. In communication protocols, beams can be specifically represented as digital beams, analog beams, spatial domain filters, spatial filters, spatial parameters, TCI, TCI-states, etc. The beam used to transmit signals can be called a transmission beam (or Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, etc. The beam used to receive signals can be called a reception beam (or Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, etc. It is understood that this application uses the term "beam" uniformly in its embodiments, but "beam" can be understood as other equivalent concepts, and is not limited to those mentioned above.

[0099] To improve data transmission efficiency, this application proposes a communication method in which a terminal actively reports a capacity frequency-linked beam to a network device on its designated frequency point. The network device then configures a suitable beam for the terminal based on the reported beam, thereby ensuring or improving the reliability of data transmission. As shown in Figure 2, this communication method includes steps 201 to 202. The method shown in Figure 2 is applied between a terminal and a network device. The terminal can be the terminal itself, or a processor, module, chip, chip system, or functional module implementing the method. The network device can be the network device itself, or a processor, module, chip, chip system, or functional module implementing the method. Wherein:

[0100] 201. Network devices send configuration information through their residing frequency points, and correspondingly, terminals receive configuration information through their residing frequency points.

[0101] Specifically, the configuration information indicates multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points.

[0102] A capacity frequency-associated beam refers to a beam that a network device can use to transmit signals on a capacity frequency. Optionally, "associated" can also be replaced with "corresponding" or "mapped". For example, a capacity frequency-associated beam can also be described as a beam corresponding to a capacity frequency, or a beam mapped to a capacity frequency; this application embodiment does not limit this.

[0103] Optionally, this configuration information can be carried in a system message. For example, the configuration information can be carried in a system information block (SIB). System messages can be used to transmit system-level or cell-level information, such as cell configuration information, system parameters, or system functions.

[0104] 202. The terminal sends the first information through the camping frequency, and the corresponding network device receives the first information through the camping frequency.

[0105] Specifically, the first information indicates a first capacity frequency point and a first beam associated with the first capacity frequency point, wherein the first capacity frequency point is one of a plurality of capacity frequency points indicated by the configuration information.

[0106] The first beam belongs to a beam associated with the first capacity frequency point, or in other words, the first beam is one of one or more beams associated with the first capacity frequency point. Optionally, the first beam is the best beam, the worst beam, or the middle beam among the beams associated with the first capacity frequency point. The middle beam refers to the beam located in the middle after sorting the beams from best to worst or from worst to best.

[0107] In some examples, the first beam is the optimal beam associated with the first capacity frequency point. The network device sends second information, and the corresponding terminal receives the second information, which instructs data transmission to be performed based on the first capacity frequency point and the first beam associated with it. Data transmission between the terminal and the network device based on the first capacity frequency point and the first beam associated with it improves the efficiency of terminal data transmission.

[0108] In other examples, the first beam is the worst-case beam associated with the first capacity frequency point. The network device sends third information, and the corresponding terminal receives this third information. This third information indicates that data transmission should be performed based on the first capacity frequency point and other beams associated with it besides the first beam. The terminal and network device can then perform data transmission based on the capacity frequency point and beams indicated by the third information. This approach avoids the network device configuring the worst-case beam associated with the first capacity frequency point for the terminal, thus ensuring the reliability of terminal data transmission.

[0109] In some other examples, the first beam is an intermediate beam associated with the first capacity frequency point. The network device sends fourth information, and the corresponding terminal receives the fourth information. This fourth information indicates that data transmission should be performed based on the first capacity frequency point and the first beam associated with it. Both the terminal and the network device perform data transmission based on the first capacity frequency point and the first beam associated with it. In this way, the network device configures the intermediate beam associated with the first capacity frequency point for data transmission to the terminal, avoiding the network device configuring the worst-case beam associated with the first capacity frequency point to the terminal, thus helping to ensure the reliability of terminal data transmission.

[0110] Optionally, the quality of a beam is related to its signal quality. Here, beam signal quality refers to the signal quality measured by the terminal using a reference signal received through that beam, or, in other words, the signal quality measured by the terminal using a reference signal transmitted by a network device through that beam. For example, a higher beam signal quality indicates a better beam; the optimal beam associated with the first capacity frequency point is the beam with the best signal quality among all beams associated with that first capacity frequency point. Conversely, a lower beam signal quality indicates a worse beam; the worst beam associated with the first capacity frequency point is the beam with the worst signal quality among all beams associated with that first capacity frequency point. For another example, if beam 1 and beam 2 are associated with the first capacity frequency point, and the signal quality of beam 1 is higher than that of beam 2, then beam 1 is superior to beam 2.

[0111] It should also be noted that the quality difference of the first capacity frequency point associated beam can also be related to other parameters. Depending on the different scenarios, the quality difference of the first capacity frequency point associated beam can be associated with different parameters. This application embodiment does not limit this.

[0112] For example, taking the relationship between beam quality and signal quality as an example, the process of the terminal determining the first beam will be described:

[0113] In some possible implementations, the network device transmits a reference signal on a first capacity frequency band via one or more beams associated with that first capacity frequency band. This reference signal is used by the terminal to determine the first beam. Correspondingly, the terminal can measure the reference signal received via one or more beams associated with the first capacity frequency band on the first capacity frequency band to determine the first beam. Alternatively, the terminal can measure the reference signal transmitted by the network device via one or more beams associated with the first capacity frequency band on the first capacity frequency band to determine the first beam. Optionally, the reference signal may include one or more of the following signals: channel state information-reference signal (CSI-RS), tracking reference signal (TRS), demodulation reference signal (DMRS), or sounding reference signal (SRS).

[0114] Taking M as an example, where M is an integer greater than 1, the above implementation can be achieved through the following steps 1 and 2:

[0115] Step 1: The network device transmits reference signals through M beams associated with the first capacity frequency point. Correspondingly, the terminal measures the reference signals received through the M beams associated with the first capacity frequency point to obtain the signal quality of each of the M beams.

[0116] For example, there are M beams, including beam 1 and beam 2. The terminal measures the reference signal received through beam 1 to obtain signal quality 1, and the terminal measures the reference signal received through beam 2 to obtain signal quality 2. Signal quality 1 is the signal quality of beam 1, and signal quality 2 is the signal quality of the beam.

[0117] Step 2: The terminal determines the first beam based on the signal quality of each of the M beams.

[0118] For example, if the first beam is the optimal beam associated with the first capacity frequency point, the terminal can determine the beam with the highest signal quality among the M beams as the first beam. The signal quality of the first beam is higher than the signal quality of the other beams among the M beams excluding the first beam.

[0119] For example, if the first beam is the worst beam associated with the first capacity frequency point, the terminal can determine the beam with the lowest signal quality among the M beams as the first beam. The signal quality of the first beam is lower than the signal quality of the other beams among the M beams excluding the first beam.

[0120] For example, if the first beam is an intermediate beam associated with the first capacity frequency point, the terminal can arrange the M beams in descending or ascending order of signal quality for each of the M beams. When M is an even number, the first beam can be determined to be the [missing information] beam in the sorted M beams. beams and / or The first beam. When M is an odd number, it can be determined that the first beam is the nth beam among the sorted M beams. One beam.

[0121] In one possible implementation, the first beam associated with the first capacity frequency point is the beam with the highest signal quality among multiple optimal beams associated with the capacity frequency points. The terminal reports the first capacity frequency point and the first beam associated with the first capacity frequency point to the network device through the first information. The network device can then configure the optimal beam associated with the first capacity frequency point to the terminal for data transmission, which helps to improve the efficiency of terminal data transmission.

[0122] For example, among the multiple capacity frequency points indicated by the configuration information, there are capacity frequency point 1 and capacity frequency point 2. After the terminal measures the reference signal received through the beam associated with capacity frequency point 1, the terminal determines the signal quality of the optimal beam associated with capacity frequency point 1. After the terminal measures the reference signal received through the beam associated with capacity frequency point 2, the terminal determines the signal quality of the optimal beam associated with capacity frequency point 2. If the signal quality of the optimal beam associated with capacity frequency point 1 is higher than the signal quality of the optimal beam associated with capacity frequency point 2, the terminal sends a first information indicating the optimal beam associated with capacity frequency point 1.

[0123] In one possible implementation, the first information further indicates a second capacity frequency point and a second beam associated with the second capacity frequency point. This second beam can be the best beam, the worst beam, or an intermediate beam among the beams associated with the second capacity frequency point. Optionally, if the second beam is the best beam associated with the second capacity frequency point, and the first beam is the best beam associated with the first capacity frequency point, the network device can configure the terminal to transmit data based on the first beam associated with the first capacity frequency point and the second beam associated with the second capacity frequency point. Correspondingly, the terminal can use carrier aggregation to transmit data based on the first capacity frequency point, the first beam associated with the first capacity frequency point, the second capacity frequency point, and the best beam associated with the second capacity frequency point. This approach helps improve the efficiency of terminal data transmission.

[0124] Optionally, the first information may also indicate more capacity frequency points and beams associated with those capacity frequency points. For example, a third capacity frequency point and a third beam associated with that third capacity frequency point, where the third beam is the best, worst, or intermediate beam associated with the third capacity frequency point; or, for example, the first information may indicate multiple capacity frequency points indicated by the configuration information and the best beam associated with each of the multiple capacity frequency points, which is not limited in this embodiment of the application.

[0125] This application mainly uses the example of the first information indicating the first capacity frequency point and the first beam associated with the first capacity frequency point to introduce the embodiments. The same logic applies to the case where the first information indicates multiple capacity frequency points and the case where the first information indicates multiple beams associated with each capacity frequency point. This application will not repeat the details here.

[0126] In some possible implementations, the configuration information also indicates the location of the time-domain and / or frequency-domain resources of the reference signal. For example, the reference signal refers to a reference signal transmitted by the network device through one or more beams associated with a first capacity frequency point. With this implementation, the terminal can measure the reference signal on the time-domain and / or frequency-domain resources indicated by the configuration information to obtain the signal quality of each beam in the one or more beams associated with the first capacity frequency point.

[0127] Optionally, when multiple beams are associated with the first capacity frequency point, the reference signals transmitted by the network device through different beams are located in different time-domain resources and / or in different frequency-domain resource locations.

[0128] Optionally, this configuration information indicates a first time-domain offset and / or a first frequency-domain offset. The first time-domain offset is the interval between the time-domain resources where the synchronization signal block (SSB) of the stationary frequency point is located and the time-domain resources where the reference signal is located. The first frequency-domain offset is the interval between the frequency-domain resources where the SSB of the stationary frequency point is located and the frequency-domain resources where the reference signal is located. Here, the SSB of the stationary frequency point refers to the SSB received by the terminal on the stationary frequency point, or the SSB transmitted by the network device on the stationary frequency point.

[0129] Further optionally, the first time-domain offset is N first time units between the start time of the time-domain resource where the SSB is located and the start time of the time-domain resource where the reference signal is located, where N is an integer greater than or equal to 1, as shown in Figure 3A. Alternatively, the first time-domain offset can also be N first time units between the end time of the time-domain resource where the SSB is located and the end time of the time-domain resource where the reference signal is located, as shown in Figure 3B. Alternatively, the first time-domain offset can also be N first time units between the middle time of the time-domain resource where the SSB is located and the middle time of the time-domain resource where the reference signal is located, as shown in Figure 3C.

[0130] In some examples, the first time unit can be one of the following time units: superframe, frame, subframe, time slot, mini-time slot, or symbol. For example, the first time unit is a symbol, and the configuration information indicates that the first time domain offset is 10 symbols, indicating that there is an interval of 10 symbols between the start time (or end time) of the time domain resource where the SSB is located and the start time (or end time) of the time domain resource where the reference signal is located.

[0131] In some other examples, the length of the first time unit is equal to the product of the length of the second time unit and a first coefficient, where the second time unit is one of the following: superframe, frame, subframe, time slot, mini-time slot, or symbol, and the first coefficient is greater than 0. For example, assuming the second time unit is a symbol and the first coefficient is 2, the length of the first time unit is equal to the length of 2 symbols, and the first time-domain offset is the interval between the start time of the time-domain resource where the SSB is located and the start time of the time-domain resource where the reference signal is located. When the configuration information indicates that the first time-domain offset is 10 first time units, it means that the interval between the start time of the time-domain resource where the SSB is located and the start time of the time-domain resource where the reference signal is located is 20 symbols. This method helps to improve the accuracy of the indication.

[0132] Further optionally, the first frequency domain offset is K first frequency units between the lowest frequency of the frequency domain resource where the SSB is located and the lowest frequency of the frequency domain resource where the reference signal is located, where K is an integer greater than or equal to 1. For example, as shown in Figure 3A. Alternatively, the first frequency domain offset can also be N first frequency units between the highest frequency of the frequency domain resource where the SSB is located and the highest frequency of the frequency domain resource where the reference signal is located. For example, as shown in Figure 3B. Optionally, the lowest frequency can be replaced by a start frequency, and the highest frequency can be replaced by an end frequency. Alternatively, the first frequency domain offset can also be N first frequency units between the middle frequency of the frequency domain resource where the SSB is located and the middle frequency of the frequency domain resource where the reference signal is located, for example, as shown in Figure 3C.

[0133] In some examples, the first frequency unit can be one of the following frequency domain units: subcarrier spacing (SCS), resource block (RB), or resource element (RE). For example, the first frequency unit is an RB, and the configuration information indicates that the first frequency domain offset is 2 RBs, meaning that the lowest (or highest) frequency of the frequency domain resource where the SSB resides is spaced 10 RBs apart from the lowest (or highest) frequency of the frequency domain resource where the reference signal resides.

[0134] In some other examples, the frequency domain length of the first frequency unit is equal to the product of the frequency domain length of the second frequency unit and a second coefficient, where the second frequency unit is one of the following: SCS, RB, or RE, and the second coefficient is greater than 0. For example, assuming the second frequency unit is RB and the second coefficient is 2, the frequency domain length of the first frequency unit is equal to the frequency domain length of 2 RBs. When the configuration information indicates that the first frequency domain offset is 10 first frequency units, it means that the lowest frequency (or highest frequency) of the frequency domain resource where the SSB is located is 20 RBs away from the lowest frequency (or highest frequency) of the frequency domain resource where the reference signal is located. This method helps to improve the accuracy of the indication.

[0135] In some other possible implementations, the time-domain and / or frequency-domain resources of the SSB (Signal Subsystem for Service) at the camping frequency are used to indicate the time-domain and / or frequency-domain resources where the reference signal resides. There is an association between the time-domain and / or frequency-domain resources of the SSB at the camping frequency and the time-domain and / or frequency-domain resources of the reference signal; this association can be referred to as the first association. The terminal can determine the time-domain and / or frequency-domain resources where the reference signal resides based on the time-domain and / or frequency-domain resources of the SSB received at the camping frequency and the first association, thereby performing signal quality measurements on the time-domain and / or frequency-domain resources where the reference signal resides. Optionally, this first association can be configured by the network device, predefined by the protocol, or determined through negotiation between the network device and the terminal; this application embodiment does not limit this.

[0136] Since the frequency range of the stationary frequency is usually low and can be associated with a wide beam, the SSB does not need to perform beam scanning. Therefore, associating the time-domain and / or frequency-domain resources of the SSB with the time-domain and / or frequency-domain resources of the reference signal, and implicitly indicating the time-domain and / or frequency-domain resources of the reference signal through the time-domain and / or frequency-domain resources of the SSB, is beneficial to saving signaling indication overhead.

[0137] Optionally, the first association can also be understood as the association between the stationary frequency point and the capacity frequency point. For example, stationary frequency point 1 is associated with capacity frequency point 1. Correspondingly, the time-domain resources and / or frequency-domain resources of the SSB transmitted on stationary frequency point 1 are associated with the time-domain resources and / or frequency-domain resources of the reference signal transmitted on capacity frequency point 1.

[0138] Optionally, the association between the time-domain and / or frequency-domain resources of the SSB and the time-domain and / or frequency-domain resources of the reference signal can be one-to-one or one-to-many.

[0139] As shown in Figure 4, in a one-to-one situation, for example, the terminal receives SSB1 on the camping frequency point. The time-frequency resource where SSB1 is located is associated with the time-frequency resource of reference signal 1. Reference signal 1 is used to measure the signal quality of the beam associated with the capacity frequency point 1. The terminal can measure the reference signal on the time-frequency resource of reference signal 1.

[0140] In a one-to-many scenario, for example, a terminal receives SSB2 on a camping frequency point. SSB2 is associated with the time-frequency resources of reference signal 2 and reference signal 3. Reference signal 2 is used to measure the signal quality of the beam associated with capacity frequency point 2, and reference signal 3 is used to measure the signal quality of the beam associated with capacity frequency point 3. The terminal can send activation information to the network device according to service requirements and / or quality of service (QoS), instructing to activate the time-frequency resources of reference signal 2 or reference signal 3. The terminal measures the reference signal on the activated time-frequency resources.

[0141] In another one-to-many scenario, the terminal receives SSB3 on the camping frequency point. SSB3 is associated with the time-frequency resources of reference signal 3 and reference signal 4. Reference signal 3 is used to measure the signal quality of the beam associated with capacity frequency point 3, and reference signal 4 is used to measure the signal quality of the beam associated with capacity frequency point 3. The terminal can send activation information to the network device according to service requirements and / or QoS, instructing to activate the time-frequency resources of reference signal 3 or the time-frequency resources of reference signal 4, and then measure the reference signal on the activated time-frequency resources.

[0142] In some possible implementations, the time-frequency resources of the SSB of the camping frequency point are also used to indicate at least one of the following: the number of ports, the number of beams, the transmit power, and the number of repetitions of the reference signal. The time-frequency resources of the SSB of the camping frequency point are associated with at least one of the following: the number of ports, the number of beams, the transmit power, and the number of repetitions of the reference signal. This association can be referred to as a second association. The terminal can determine at least one of the following: the number of ports, the number of beams, the transmit power, and the number of repetitions of the reference signal based on the received time-frequency resources of the SSB of the camping frequency point and the second association. Optionally, this second association can be predefined by the protocol, configured by the network device, or determined through negotiation between the terminal and the network device; this embodiment does not limit this.

[0143] In some examples, the higher the frequency of the capacity frequency, the more antenna ports are used to transmit the reference signal for that capacity frequency, resulting in better coverage. Conversely, the lower the frequency of the capacity frequency, the fewer antenna ports are used to transmit the reference signal for that capacity frequency. For example, if the frequency of capacity frequency 1 is higher than the frequency of capacity frequency 2, the number of antenna ports used to transmit the reference signal for capacity frequency 1 is higher than the number of antenna ports used to transmit the reference signal for capacity frequency 2.

[0144] In some examples, the higher the frequency of a capacity frequency point, the more beams it is associated with, resulting in better coverage. Conversely, the lower the frequency of a capacity frequency point, the fewer beams it is associated with. For example, if the frequency of capacity frequency point 1 is higher than that of capacity frequency point 2, then capacity frequency point 1 is associated with more beams than capacity frequency point 2.

[0145] In some examples, the higher the frequency of a capacity frequency point, the greater the transmission power of the reference signal at that capacity frequency point, resulting in better coverage. Conversely, the lower the frequency of a capacity frequency point, the lower the transmission power of the reference signal at that capacity frequency point. For example, if the frequency of capacity frequency point 1 is higher than that of capacity frequency point 2, the transmission power of the reference signal at capacity frequency point 1 is higher than that at capacity frequency point 2.

[0146] In some examples, the higher the frequency of a capacity frequency point, the more times the reference signal at that capacity frequency point is retransmitted, resulting in better coverage. Conversely, the lower the frequency of a capacity frequency point, the fewer times the reference signal at that capacity frequency point is retransmitted. For example, if the frequency of capacity frequency point 1 is higher than that of capacity frequency point 2, the reference signal at capacity frequency point 1 will be retransmitted more times than that at capacity frequency point 2.

[0147] In some possible implementations, this configuration information indicates one or more of the following: the bandwidth of the first capacity frequency point, the subcarrier spacing of the first capacity frequency point, the initial activation bandwidth of the first capacity frequency point, the network standard of the first capacity frequency point, or the resource configuration of the reference signal on the first capacity frequency point. The above information is described below:

[0148] The bandwidth of the first capacity frequency point refers to the interval between the lowest and highest frequencies of the first capacity frequency point. The initial activation bandwidth of the first capacity frequency point refers to the bandwidth configured by the network device for the terminal on the first capacity frequency point after the terminal completes initial access; it can be used to determine the uplink and downlink operating frequency points of the first capacity frequency point. The subcarrier spacing of the first capacity frequency point is used to determine the frame format and adjust the frequency domain indicator step size. The network standard of the first capacity frequency point can be used to determine the frame format; for example, the network standard of the first capacity frequency point can be frequency division duplex (FDD) or time division duplex (TDD). The resource configuration of the reference signal on the first capacity frequency point refers to the resource allocation of the reference signal transmitted through the beam associated with the first capacity frequency point.

[0149] In some examples, the configuration information indicates that the resource of the reference signal on the first capacity frequency is a periodic resource. The network device will periodically transmit the reference signal on the first capacity frequency. Optionally, the configuration information also indicates the period length of the resource occupied by the reference signal and / or the time unit in which the start time of the resource of the reference signal is located. For example, the time unit may include one or more of the following time units: superframe, frame, subframe, time slot, mini-time slot, or symbol.

[0150] In some examples, the configuration information indicates that the resources for the reference signal on the first capacity frequency point are aperiodic resources. Optionally, the configuration information also indicates the time-frequency resources occupied by the reference signal on the first capacity frequency point, and after the network device sends the configuration information, it indicates that the corresponding configuration is activated. After receiving the configuration information, the terminal can measure the reference signal on the time-frequency resources occupied by the reference signal on the first capacity frequency point, effectively reducing measurement latency.

[0151] In some examples, the configuration information indicates that the resources for the reference signal on the first capacity frequency point are configured by the network device in a semi-static manner via higher-layer signaling. Optionally, the terminal device can send a request message indicating that the reference signal on the first capacity frequency point be activated. Correspondingly, after receiving the request message, the network device will transmit the reference signal on the first capacity frequency point.

[0152] For example, the following describes how the first information indicates the first beam:

[0153] Method 1: The first information includes the identifier (ID) of the first capacity frequency point and the identifier of the first beam of the first capacity frequency point.

[0154] The capacity frequency identifier can be used to distinguish, mark, or locate the symbol or value of the capacity frequency. Similarly, the beam identifier can be used to distinguish, mark, or locate the symbol or value of the beam. Optionally, the identifier can also be described as an index or number, which is not limited in this embodiment.

[0155] In this way, network devices can directly determine the first capacity frequency and the first beam associated with the first capacity frequency based on the identifier.

[0156] Method 2: The first information includes a first random access preamble, which indicates the first beam associated with the first capacity frequency point. For example, there is an association between the random access preamble and the beam; this association can be one-to-one or many-to-one. Optionally, the association between the random access preamble and the beam can be configured by the network device, predefined by the protocol, or agreed upon through negotiation between the network device and the terminal; this embodiment does not limit this. After receiving the first information, the network device determines the first beam based on the association between the random access preamble and the beam and the first random access preamble.

[0157] For example, multiple random access preambles can be divided into multiple random access preamble groups, with each random access preamble group including one or more random access preambles. These multiple random access preamble groups include random access preamble group 1 and random access preamble group 2. Random access preamble group 1 includes random access preamble 1, random access preamble 2, and random access preamble 3, while random access preamble group 2 includes random access preamble 4 and random access preamble 5. Random access preamble group 1 is associated with beam 1, and random access preamble group 2 is associated with beam 2. Both beam 1 and beam 2 are associated with a first capacity frequency point. If the first information sent by the terminal includes random access preamble 2, the network device can determine that the first beam is beam 1 associated with random access preamble group 1 containing random access preamble 2. Alternatively, if the first information sent by the terminal includes random access preamble 4, the network device can determine that the first beam is beam 2 associated with random access preamble group 2 containing random access preamble 4.

[0158] In this way, when a terminal initiates random access, the network device can determine the first capacity frequency point and the first beam associated with the first capacity frequency point by using the first random access preamble and the association between the random access preamble and the beam, which helps to save signaling indication overhead.

[0159] Method 3: The time-domain resources and / or frequency-domain resources where the first information is located are used to indicate the first beam associated with the first capacity frequency point.

[0160] When the time-domain resources for transmitting the first information are used to indicate a first capacity frequency point, there is an association between the time-domain resources used to transmit the first information and the beam. Optionally, the association between the time-domain resources used to transmit the first information and the beam can be one-to-one or many-to-one. The network device can determine the first beam based on the time-domain resources where the first information is located and the association between the time-domain resources used to transmit the first information and the beam. Optionally, the association between the time-domain resources used to transmit the first information and the beam can be configured by the network device, predefined by the protocol, or agreed upon through negotiation between the network device and the terminal; this embodiment does not limit this.

[0161] For example, as shown in Figure 5A, time-domain resources 1, 2, 3, and 4 are time-domain resources that can be used to transmit the first information, and beams 1, 2, 3, and 4 are beams associated with the first capacity frequency point. Specifically, time-domain resource 1 is associated with beam 1, time-domain resource 2 with beam 2, time-domain resource 3 with beam 3, and time-domain resource 4 with beam 4. If the terminal device transmits the first information on time-domain resource 1, the corresponding network device receives the first information on time-domain resource 1, and the network device can determine that the first beam is the beam associated with the time-domain resource 1 occupied by the first information.

[0162] When the frequency domain resources for transmitting the first information are used to indicate a first capacity frequency point, there is an association between the frequency domain resources used to transmit the first information and the beam. Optionally, there is a one-to-one correspondence between the frequency domain resources used to transmit the first information and the beam. The network device can determine the first beam as the beam associated with the frequency domain resources where the first information is located based on the association between the frequency domain resources used to transmit the first information and the beam. Optionally, the association between the frequency domain resources used to transmit the first information and the beam can be configured by the network device, predefined by the protocol, or agreed upon through negotiation between the network device and the terminal; this application embodiment does not limit this.

[0163] For example, as shown in Figure 5B, frequency domain resources 1, 2, 3, and 4 are frequency domain resources that can be used to transmit the first information, and beams 1, 2, 3, and 4 are beams associated with the first capacity frequency point. Specifically, frequency domain resource 1 is associated with beam 1, frequency domain resource 2 with beam 2, frequency domain resource 3 with beam 3, and frequency domain resource 4 with beam 4. If the terminal device transmits the first information on frequency domain resource 3, the corresponding network device receives the first information on frequency domain resource 3, and the network device can determine that the first beam is the beam 3 associated with the frequency domain resource 3 occupied by the first information.

[0164] When the time-frequency resources and frequency domain resources of the first information are used to indicate the first capacity frequency point, the time-domain resources and frequency domain resources of the first information can be referred to as the time-frequency resources of the first information. The time-frequency resources used to transmit the first information are associated with a beam. Optionally, there is a one-to-one correspondence between the time-frequency resources used to transmit the first information and the beam. The network device can determine the first beam as the beam associated with the time-frequency resources where the first information is located, based on the time-frequency resources where the first information is located and the association between the time-frequency resources used to transmit the first information and the beam. Optionally, the association between the time-frequency resources used to transmit the first information and the beam can be configured by the network device, predefined by the protocol, or agreed upon through negotiation between the network device and the terminal; this application embodiment does not limit this.

[0165] For example, as shown in Figure 5C, time-frequency resources 1, 2, 3, and 4 are time-frequency resources that can be used to transmit the first information, and beams 1, 2, 3, and 4 are beams associated with the first capacity frequency point. Specifically, time-frequency resource 1 is associated with beam 1, time-frequency resource 2 with beam 2, time-frequency resource 3 with beam 3, and time-frequency resource 4 with beam 4. If the terminal device transmits the first information on time-frequency resource 1, and correspondingly, the network device receives the first information on time-frequency resource 1, the network device can determine that the first beam is beam 4 associated with the time-frequency resource 4 occupied by the first information.

[0166] In the manner described above, when a terminal initiates random access, the network device can determine the first capacity frequency point and the first beam associated with the first capacity frequency point based on the correlation between the time domain resources and / or frequency domain resources and the beam of the first information, which helps to save signaling overhead.

[0167] Optionally, the first information can be carried in a random access message. For example, when the terminal uses two-step random access, the first information can be carried in random access message A (MsgA); when the terminal uses four-step random access, the first information can be carried in random access message 1 (Msg1). Further optionally, the first information can be carried in uplink small data transmission (SDT).

[0168] The following describes the communication device provided in the embodiments of this application.

[0169] This application divides the communication device into functional modules according to the above-described method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and represents only one logical functional division; in actual implementation, other division methods may be used. The communication device of this application embodiment will be described in detail below with reference to Figures 6 to 8.

[0170] Figure 6 is a schematic diagram of a communication device provided in an embodiment of this application. As shown in Figure 6, the communication device includes a processing module 601 and a transceiver module 602. The transceiver module 602 can implement corresponding communication functions, and the processing module 601 is used to implement corresponding processing functions. For example, the transceiver module 602 can also be called an interface, a communication interface, or a communication module, etc.

[0171] In this embodiment, the communication device can be used to perform the actions performed by the terminal in the method embodiment described above. In this case, the terminal can be the terminal itself or a chip or functional module configurable within the terminal. The transceiver module 602 is used to perform the transceiver-related operations of the terminal in the method embodiment described above, and the processing module 601 is used to perform the processing-related operations of the terminal in the method embodiment described above.

[0172] In some embodiments, the transceiver module 602 is configured to receive configuration information via a residing frequency point, the configuration information indicating multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points, the capacity frequency points being used for data transmission; the processing module 601 is configured to determine first information, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of the multiple capacity frequency points indicated by the configuration information; the transceiver module 602 is further configured to transmit the first information via the residing frequency point.

[0173] In this embodiment, the communication device can be used to perform the actions performed by the network device in the method embodiment described above. In this case, the network device can be the network device itself or a chip or functional module configurable within the network device. The transceiver module 602 is used to perform transceiver-related operations of the network device in the method embodiment described above, and the processing module 601 is used to perform processing-related operations of the network device in the method embodiment described above.

[0174] In some embodiments, the processing module 601 is configured to determine configuration information, the configuration information indicating a plurality of capacity frequency points and one or more beams associated with each of the plurality of capacity frequency points, the capacity frequency points being used for data transmission; the transceiver module 602 is configured to send the configuration information through a residing frequency point; the transceiver module 602 is further configured to receive first information through a residing frequency point, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of the plurality of capacity frequency points indicated by the configuration information.

[0175] Optionally, in the above embodiments, the communication device may further include a storage module, which can be used to store instructions and / or data. The processing module 601 can read the instructions and / or data in the storage module so that the communication device can implement the aforementioned method embodiments.

[0176] The specific descriptions of the send / receive module and the processing module are for illustrative purposes only. For the specific functions or execution steps of the send / receive module and the processing module, please refer to the above method implementation examples, which will not be detailed here.

[0177] The communication device of this application embodiment has been described above. The following describes possible product forms of the communication device. Any product possessing the functions of the communication device described in FIG. 6 above falls within the protection scope of this application embodiment. The following description is merely illustrative and does not limit the product form of the communication device of this application embodiment to this.

[0178] In one possible implementation, in the communication device shown in FIG6, the processing module 601 can be one or more processing circuits, and the transceiver module 602 can be a transceiver circuit. Alternatively, the transceiver module 602 can also be a transmitting module and a receiving module. The transmitting module can be a transmitting circuit, and the receiving module can be a receiving circuit, which are integrated into one device, such as a transceiver circuit. In the embodiments of this application, the processing circuit and the transceiver circuit can be coupled, etc. The connection method of the processing circuit and the transceiver circuit is not limited in the embodiments of this application. In the process of performing the above method, the process of sending information in the above method can be the process of the processing circuit outputting the above information. When outputting the above information, the processing circuit outputs the above information to the transceiver circuit so that the transceiver circuit can transmit (or output). After the above information is output by the processing circuit, it may need to undergo other processing before reaching the transceiver circuit. Similarly, the process of receiving information in the above method can be the process of the processing circuit receiving the input above information. When the processing circuit receives the input information, the transceiver circuit receives the above information and inputs it into the processing circuit. Furthermore, after the transceiver circuit receives the aforementioned information, the information may need to undergo further processing before being input into the processing circuit.

[0179] Figure 7 is a schematic diagram of a communication device provided in an embodiment of this application. As shown in Figure 7, the communication device 70 includes one or more processing circuits 720 and transceiver circuits 710.

[0180] In some embodiments of this application, the communication device can be used to execute the steps, methods, or functions performed by the terminal described above. For example, the processing circuit 720 can be used to execute the functions or steps implemented by the processing module 601 shown in FIG. 6, and the transceiver circuit 710 can be used to execute the functions or steps implemented by the transceiver module 602 shown in FIG. 6. For a detailed description of the processing circuit 720 and the transceiver circuit 710, please refer to FIG. 6 or the method embodiments shown above, which will not be described in detail here.

[0181] In other embodiments of this application, the communication device is used to perform the steps, methods, or functions performed by the network device described above. For example, the processing circuit 720 can be used to perform the functions or steps implemented by the processing module 601 shown in FIG. 6, and the transceiver circuit 710 can be used to perform the functions or steps implemented by the transceiver module 602 shown in FIG. 6. Detailed descriptions of the processing circuit 720 and the transceiver circuit 710 can be found in FIG. 6 or the method embodiments shown above, and will not be elaborated further here.

[0182] For example, the processing circuitry may be one or more processors, or all or part of the circuitry within one or more processors. The transceiver circuitry may be a transceiver, an input / output circuit, or an interface circuit, etc.

[0183] For example, in various implementations of the communication device shown in FIG7, the transceiver circuit may include a receiver for performing a receiving function (or operation) and a transmitter for performing a transmitting function (or operation). The transceiver circuit is also used to communicate with other devices / communication devices via a transmission medium.

[0184] Optionally, the communication device 70 may further include one or more memories 730 for storing program instructions and / or data. The memory 730 is coupled to the processing circuitry 720. The coupling in this embodiment is an indirect coupling or communication connection between communication devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between the communication devices, units, or modules. The processing circuitry 720 may operate in conjunction with the memory 730. The processing circuitry 720 may execute the program instructions stored in the memory 730. Optionally, at least one of the above-mentioned memories may be included in the processing circuitry.

[0185] This application embodiment does not limit the specific connection medium between the transceiver circuit 710, processing circuit 720, and memory 730. In this application embodiment, the memory 730, processing circuit 720, and transceiver circuit 710 are connected via a bus 740 in Figure 7. The bus is represented by a thick line in Figure 7. The connection methods between other components are only for illustrative purposes and are not intended to be limiting. The bus can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 7, but this does not mean that there is only one bus or one type of bus.

[0186] In the embodiments of this application, the processing circuit may be a general-purpose processing circuit, a digital signal processing circuit, 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, etc., and can implement or execute the various methods, steps, and logic block diagrams in the embodiments of this application. The general-purpose processing circuit may be a microprocessor circuit or any conventional processing circuit, etc. The steps of the methods in conjunction with the embodiments of this application can be directly manifested as the execution of the hardware processing circuit, or the execution of the steps by combining hardware and software modules in the processing circuit, etc.

[0187] In this application embodiment, the memory may include, but is not limited to, non-volatile memory such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM), or compact disc read-only memory (CD-ROM), etc. Memory is any storage medium capable of carrying or storing program code in the form of instructions or data structures, and capable of being read and / or written by a computer (such as the communication device shown in this application), but is not limited to these. The memory in this application embodiment may also be a circuit or any other communication device capable of implementing storage functions, used to store program instructions and / or data.

[0188] For example, the processing circuit 720 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process the data of the software programs. The memory 730 is mainly used to store software programs and data. The transceiver circuit 710 may include a control circuit and an antenna. The control circuit is mainly used for converting baseband signals to radio frequency signals and processing radio frequency signals. The antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output communication devices, such as touch screens, displays, and keyboards, are mainly used to receive user input data and output data to the user.

[0189] When the communication device is powered on, the processing circuit 720 can read the software program in the memory 730, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processing circuit 720 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit then performs RF processing on the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processing circuit 720. The processing circuit 720 converts the baseband signal back into data and processes the data.

[0190] In another implementation, the radio frequency circuit and antenna can be set up independently of the processing circuit that performs baseband processing. For example, in a distributed scenario, the radio frequency circuit and antenna can be arranged in a remote manner, independent of the communication device.

[0191] The communication device shown in this application embodiment may also have more components than those in Figure 7, and this application embodiment does not limit this. The methods performed by the processing circuit and transceiver circuit shown above are only examples, and the specific steps performed by the processing circuit and transceiver circuit can be referred to the methods described above.

[0192] In another possible implementation, in the communication device shown in Figure 6, the processing module 601 can be one or more logic circuits, and the transceiver module 602 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver module 602 can also be a sending module and a receiving module, where the sending module can be an output interface and the receiving module can be an input interface, and the sending module and receiving module are integrated into one module, such as an input / output interface.

[0193] Figure 8 is a schematic diagram of a communication device provided in an embodiment of this application. As shown in Figure 8, the communication device includes a logic circuit 801 and an interface circuit 802. That is, the processing module 601 can be implemented using the logic circuit 801, and the transceiver module 602 can be implemented using the interface circuit 802. The logic circuit 801 can be a chip, processing circuit, integrated circuit, or system-on-chip (SoC) chip, etc., and the interface circuit 802 can be a communication interface, input / output interface, pins, etc. For example, Figure 8 illustrates the communication device as a chip, which includes the logic circuit 801 and the interface circuit 802.

[0194] In this embodiment, the logic circuit and the interface can also be coupled to each other. The specific connection method of the logic circuit and the interface is not limited in this embodiment. For example, the logic circuit 801 can be used to execute the functions or steps implemented by the processing module 601 shown in FIG. 6, and the interface circuit 802 can be used to execute the functions or steps implemented by the transceiver module 602 shown in FIG. 6. For a detailed description of the logic circuit 801 and the interface circuit 802, please refer to FIG. 6 or the method embodiment shown above, which will not be detailed here.

[0195] The communication device shown in the embodiments of this application can implement the method provided in the embodiments of this application in hardware form, or it can implement the method provided in the embodiments of this application in software form, etc., and the embodiments of this application do not limit it in this way.

[0196] This application also provides a communication system, which includes a terminal and a network device, and the terminal and network device can be used to perform the methods in any of the foregoing embodiments.

[0197] In addition, this application also provides a computer program for implementing the operations and / or processes performed by various communication devices in the method provided in this application.

[0198] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform the operations and / or processes performed by various communication devices in the methods provided in this application.

[0199] This application also provides a computer program product comprising computer code or a computer program that, when run on a computer, causes the operations and / or processes performed by various entities in the method provided in this application to be executed.

[0200] In the embodiments provided in this application, it should be understood that the disclosed systems, communication devices, and methods can be implemented in other ways. For example, the communication device embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, communication devices, or modules, or it may be an electrical, mechanical, or other form of connection.

[0201] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of this application.

[0202] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0203] If the integrated module is implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable 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 methods described in the various embodiments of this application. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0204] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method characterized by comprising: The method includes: Configuration information is received via a stationary frequency point, the configuration information indicating multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points, the capacity frequency points being used for data transmission; First information is transmitted through the residing frequency point, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of a plurality of capacity frequency points indicated by the configuration information.

2. The method of claim 1, wherein, The first beam is the optimal beam associated with the first capacity frequency point, and the method further includes: Receive second information, the second information indicating data transmission based on the first capacity frequency and the first beam associated with the first capacity frequency.

3. The method according to claim 1 or 2, characterized in that, The first information includes a first random access preamble, which is used to indicate the first beam associated with the first capacity frequency point.

4. The method according to any one of claims 1 to 3, characterized in that, The first information is carried in the uplink small data packet transmission SDT.

5. The method according to any one of claims 1 to 4, characterized in that, The time-domain resources and / or frequency-domain resources where the first information is located are used to indicate the first beam associated with the first capacity frequency point.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: At the first capacity frequency point, the reference signal received by one or more beams associated with the first capacity frequency point is measured to determine the first beam.

7. The method of claim 6, wherein, The configuration information also indicates the location of the time-domain and / or frequency-domain resources of the reference signal.

8. The method of claim 7, wherein, The configuration information also indicates the location of the time-domain resources and / or frequency-domain resources of the reference signal, including: the configuration information also indicates a first time-domain offset and / or a first frequency-domain offset, wherein the first time-domain offset is the interval between the time-domain resources where the synchronization signal block SSB of the stationing frequency point is located and the time-domain resources where the reference signal is located, and the first frequency-domain offset is the interval between the frequency-domain resources where the SSB of the stationing frequency point is located and the frequency-domain resources where the reference signal is located.

9. The method according to claim 7 or 8, characterized in that, The configuration information indicates one or more of the following: The bandwidth of the first capacity frequency point, the subcarrier spacing of the first capacity frequency point, the initial activation bandwidth of the first capacity frequency point, the network standard of the first capacity frequency point, or the resource configuration of the reference signal on the first capacity frequency point.

10. The method according to any one of claims 6 to 9, characterized in that, The time-frequency resource indication of the SSB of the stationary frequency point is one or more of the following: the number of ports used to transmit the reference signal, the number of beams used to transmit the reference signal, the transmission power of the reference signal, or the number of repetitions of the reference signal.

11. A communication method, comprising: The method includes: Configuration information is sent via a stationary frequency point, the configuration information indicating multiple capacity frequency points and one or more beams associated with each of the multiple capacity frequency points, the capacity frequency points being used for data transmission; The first information is received through the dwell frequency point, the first information indicating a first capacity frequency point and a first beam associated with the first capacity frequency point, the first capacity frequency point being one of a plurality of capacity frequency points indicated by the configuration information.

12. The method of claim 11, wherein, The first beam is the optimal beam associated with the first capacity frequency point, and the method further includes: Send a second message, which instructs data transmission based on the first capacity frequency and a first beam associated with the first capacity frequency.

13. The method according to claim 11 or 12, characterized in that, The first information includes a first random access preamble, which is used to indicate the first beam associated with the first capacity frequency point.

14. The method according to any one of claims 11 to 13, characterized in that, The first information is carried in the uplink small data packet transmission SDT.

15. The method according to any one of claims 11 to 14, characterized in that, The time-domain resources and / or frequency-domain resources where the first information is located are used to indicate the first beam associated with the first capacity frequency point.

16. The method according to any one of claims 11 to 15, characterized in that, The method further includes: At the first capacity frequency point, a reference signal is transmitted through one or more beams associated with the first capacity frequency point, and the reference signal is used by the terminal to determine the first beam.

17. The method of claim 16, wherein, The configuration information also indicates the location of the time-domain and / or frequency-domain resources of the reference signal.

18. The method of claim 17, wherein, The configuration information also indicates the location of the time-domain resources and / or frequency-domain resources of the reference signal, including: the configuration information also indicates a first time-domain offset and / or a first frequency-domain offset, wherein the first time-domain offset is the interval between the time-domain resources where the synchronization signal block SSB of the stationing frequency point is located and the time-domain resources where the reference signal is located, and the first frequency-domain offset is the interval between the frequency-domain resources where the SSB of the stationing frequency point is located and the frequency-domain resources where the reference signal is located.

19. The method of claim 17 or 18, wherein, The configuration information indicates one or more of the following: The bandwidth of the first capacity frequency point, the subcarrier spacing of the first capacity frequency point, the initial activation bandwidth of the first capacity frequency point, the network standard of the first capacity frequency point, or the resource configuration of the reference signal on the first capacity frequency point.

20. The method of any of claims 16-19, wherein, The time-frequency resource indication of the SSB of the stationary frequency point is one or more of the following: the number of ports used to transmit the reference signal, the number of beams used to transmit the reference signal, the transmission power of the reference signal, or the number of repetitions of the reference signal.

21. A communications device, characterized by The communication device includes a module or unit for performing the method according to any one of claims 1 to 10, or the communication device includes a module or unit for performing the method according to any one of claims 11 to 20.

22. A communications device, characterized by The communication device includes at least one processor; wherein the at least one processor is configured to cause the communication device to perform the method of any one of claims 1-10, or the at least one processor is configured to cause the communication device to perform the method of any one of claims 11-20.

23. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed, perform the method as described in any one of claims 1 to 10, or the method as described in any one of claims 11 to 20.

24. A computer program product, characterised in that, When the computer program product is run on a computer, it causes the method of any one of claims 1 to 10 to be executed, or causes the method of any one of claims 11 to 20 to be executed.

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