Communication method, communication apparatus and storage medium

Abstract

Disclosed in the embodiments of the present application are a communication method, a communication apparatus and a storage medium, which are applied to the technical field of communications and used for reducing cross interference from a downlink to other receiving links. The method in the embodiments of the present application comprises: determining a first transmission power, wherein the first transmission power is determined on the basis of a dynamic power control range corresponding to a first frequency-domain resource under a subband full duplex (SBFD) symbol, the first frequency-domain resource is located within a first adjacent channel range of an adjacent channel of an uplink bandwidth part (BWP), and the upper limit of the dynamic power control range is less than or equal to the transmission power of the first adjacent channel range; and on the basis of the first transmission power, sending a signal to a first terminal device on the first frequency-domain resource. In the embodiments of the present application, the upper limit of a dynamic power control range corresponding to a first frequency-domain resource is defined, thereby limiting the power of REs adjacent to a UL subband, and thus improving the frequency-domain isolation capability and reducing base station self-interference caused by a DL subband of a network device to the UL subband.

Description

A communication method, communication device and storage medium

[0001] This application claims priority to Chinese Patent Application No. CN202411755401.8, filed on November 29, 2024, entitled "A Communication Method, Communication Device and Storage Medium", 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 a communication method, communication device and storage medium. Background Technology

[0003] Downlink power control (hereinafter referred to as downlink power control) is the allocation of transmit power for various downlink physical channels, such as broadcast channels, control channels, data channels, and reference signals. The purpose of downlink power control is to minimize the transmit power of downlink channels while meeting user reception quality requirements, thereby controlling inter-cell interference.

[0004] Depending on the power bias configuration method, downlink power control is divided into static power control and dynamic power control. Static power control adjusts the transmit power by configuring power bias parameters based on the cell reference power. Dynamic power control adaptively adjusts the transmit power based on the actual transmission conditions of each channel or signal, based on the cell reference power.

[0005] However, how to reduce the cross-interference of the downlink to other receiving links is an urgent problem to be solved. Summary of the Invention

[0006] This application provides a communication method, communication device, and storage medium for reducing cross-interference of the downlink to other receiving links.

[0007] The first aspect of this application provides a communication method. Optionally, the execution subject of this method can be a network device, a component or device applied to the network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device (e.g., a central unit (CU), a distributed unit (DU), or a radio unit (RU)). Taking a network device as an example, the network device determines a first transmit power, which is determined based on the power control dynamic range corresponding to the first frequency domain resource under the subband full duplex (SBFD) symbol. The first frequency domain resource is located in the first adjacent channel range of the uplink bandwidth part (BWP), and the upper limit of the power control dynamic range is less than or equal to the transmit power of the first adjacent channel range. The network device transmits a signal to a first terminal device on the first frequency domain resource according to the first transmit power.

[0008] Based on the first aspect of this application, since the first frequency domain resource is used for downlink transmission, by limiting the upper limit of the power control dynamic range corresponding to the first frequency domain resource, the power of the resource element (RE) adjacent to the uplink (UL) subband is limited, thereby improving the frequency domain isolation capability and reducing the base station self-interference caused by the downlink (DL) subband of the network device to the UL subband.

[0009] Based on the first aspect of this application, in some possible implementations, if the first adjacent channel range overlaps with the downlink BWP, the network device determines the first transmit power.

[0010] In this embodiment, since the first adjacent channel range overlaps with the downlink BWP, the RE power on the downlink BWP is limited, thereby improving the frequency domain isolation capability and reducing the base station self-interference caused by the network device DL subband to the UL subband.

[0011] Based on the first aspect of this application, in some possible implementations, the adjacent channel of the uplink BWP includes multiple adjacent channel ranges, the multiple adjacent channel ranges include a first adjacent channel range, and the number of adjacent channel ranges is related to the transmit power level.

[0012] In this embodiment of the application, if the network device has a high transmit power level, it can divide more adjacent channel ranges, thereby defining power limits under different adjacent channel ranges and improving frequency domain isolation energy.

[0013] Based on the first aspect of this application, in some possible implementations, the power control dynamic ranges corresponding to the frequency domain resources in multiple adjacent channel ranges are different from each other, and the upper limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0014] In this embodiment, by limiting the range of adjacent channels closer to the uplink BWP, the impact of adjacent channels of the uplink BWP on the uplink BWP is reduced, thereby reducing the base station self-interference caused by the DL subband of the network device to the UL subband.

[0015] Based on the first aspect of this application, in some possible implementations, the lower limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0016] In this embodiment, by limiting the range of adjacent channels closer to the uplink BWP, the impact of adjacent channels of the uplink BWP on the uplink BWP is reduced, thereby reducing the base station self-interference caused by the DL subband of the network device to the UL subband.

[0017] Based on the first aspect of this application, in some possible implementations, the network device may further determine the transmit power of a second adjacent channel range, wherein the second adjacent channel range does not overlap with the downlink BWP, the transmit power of the second adjacent channel range is higher than the first transmit power, and the difference between the transmit power of the second adjacent channel range and the first transmit power is the power margin, which is obtained based on the power control dynamic range corresponding to the frequency domain resources in the multiple adjacent channel ranges and the transmit power of the multiple adjacent channel ranges.

[0018] In this embodiment of the application, the power margin obtained from the limitation is allocated to other downlink resources, thereby avoiding resource waste.

[0019] Based on the first aspect of this application, in some possible implementations, the channel quality indicator of the first terminal device is higher than a preset threshold.

[0020] Based on the first aspect of this application, in some possible implementations, the network device may also send a first instruction information, which is used to instruct the second terminal device to receive data on the first time domain resource.

[0021] Send a second instruction message, which is used to instruct the third terminal device to receive data on the second time domain resource;

[0022] The first signal is transmitted using a second transmit power on a first time domain resource, and the second signal is transmitted using a third transmit power on a second time domain resource, wherein the second transmit power is higher than the third transmit power.

[0023] In this embodiment, semi-static power control and time-sharing scheduling can more effectively reduce neighboring cell interference experienced by remote UEs.

[0024] Based on the first aspect of this application, in some possible implementations, the network device may also send a third instruction message, which is used to instruct the first network device to send a third signal using a second transmit power on a second time domain resource and to send a fourth signal using a third transmit power on a first time domain resource.

[0025] In this embodiment of the application, by sending third instruction information, the coordination and scheduling between base stations is simplified and the signaling overhead is reduced.

[0026] Based on the first aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to a second terminal device on a first time domain resource and to transmit to a third terminal device on a second time domain resource.

[0027] Based on the first aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resources, and to transmit to the third terminal device on the second time domain resources.

[0028] Based on the first aspect of this application, in some possible implementations, if the reference signal is used for mobility measurement, the start symbol of the time slot in which the reference signal is located is located on a first time domain resource.

[0029] Based on the first aspect of this application, in some possible implementations, if the reference signal is used for beam measurement, the timing of the transmission of the reference signal is located on a first time-domain resource.

[0030] A second aspect of this application provides a communication method. Optionally, the execution subject of this method may be a second device, which may be a network device, a component or device applied to the network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device (e.g., a central unit (CU), a distributed unit (DU), or a radio unit (RU)). Taking a network device as an example, the network device may send a first indication message, which instructs a second terminal device to receive data on a first time domain resource; the network device may send a second indication message, which instructs a third terminal device to receive data on a second time domain resource; the network device may transmit a first signal using a second transmission power on the first time domain resource and transmit a second signal using a third transmission power on the second time domain resource, wherein the second transmission power is higher than the third transmission power.

[0031] Based on the second aspect of this application, in some possible implementations, the network device may also send a third instruction message, which is used to instruct the first network device to send a third signal using a second transmit power on a second time domain resource and to send a fourth signal using a third transmit power on a first time domain resource.

[0032] Based on the second aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to a second terminal device on a first time domain resource and to transmit to a third terminal device on a second time domain resource.

[0033] Based on the second aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resources, and to transmit to the third terminal device on the second time domain resources.

[0034] Based on the second aspect of this application, in some possible implementations, if the reference signal is used for mobility measurement, the start symbol of the time slot in which the reference signal is located is located on a first time domain resource.

[0035] Based on the second aspect of this application, in some possible implementations, if the reference signal is used for beam measurement, the timing of the transmission of the reference signal is located on the first time domain resource.

[0036] A third aspect of this application provides a communication device, comprising:

[0037] The processing module is used to determine the first transmit power. The first transmit power is determined based on the power control dynamic range corresponding to the first frequency domain resource under the sub-band full-duplex SBFD symbol. The first frequency domain resource is located in the first adjacent channel range of the adjacent channel of the uplink bandwidth BWP. The upper limit of the power control dynamic range is less than or equal to the transmit power of the first adjacent channel range.

[0038] An interface module is used to send a signal to a first terminal device on a first frequency domain resource based on a first transmit power.

[0039] Based on a third aspect of this application, in some possible implementations, the processing module is used to determine the first transmit power, including:

[0040] The processing module is specifically used to determine the first transmit power if the range of the first adjacent channel overlaps with the downlink BWP.

[0041] Based on the third aspect of this application, in some possible implementations, the adjacent channel of the uplink BWP includes multiple adjacent channel ranges, the multiple adjacent channel ranges include a first adjacent channel range, and the number of adjacent channel ranges is related to the transmit power level.

[0042] Based on the third aspect of this application, in some possible implementations, the power control dynamic ranges corresponding to the frequency domain resources in multiple adjacent channel ranges are different from each other, and the upper limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0043] Based on the third aspect of this application, in some possible implementations, the lower limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0044] Based on the third aspect of this application, in some possible implementations, the processing module is further configured to determine the transmit power of a second adjacent channel range, wherein the second adjacent channel range does not overlap with the downlink BWP, the transmit power of the second adjacent channel range is higher than the first transmit power, and the difference between the transmit power of the second adjacent channel range and the first transmit power is a power margin, which is obtained based on the power control dynamic range corresponding to the frequency domain resources in the multiple adjacent channel ranges and the transmit power of the multiple adjacent channel ranges.

[0045] Based on the third aspect of this application, in some possible implementations, the channel quality indicator of the first terminal device is higher than a preset threshold.

[0046] Based on the third aspect of this application, in some possible implementations, the processing module is further configured to generate first instruction information and second instruction information;

[0047] The interface module is also used to send first indication information, which instructs the second terminal device to receive data on the first time domain resource.

[0048] The interface module is also used to send a second indication message, which instructs the third terminal device to receive data on the second time domain resource.

[0049] The interface module is also used to transmit a first signal using a second transmit power on a first time domain resource, and to transmit a second signal using a third transmit power on a second time domain resource, wherein the second transmit power is higher than the third transmit power.

[0050] Based on the third aspect of this application, in some possible implementations, the processing module is further configured to generate third instruction information;

[0051] The interface module is also used to send third indication information, which instructs the first network device to send a third signal using a second transmit power on a second time domain resource and to send a fourth signal using a third transmit power on a first time domain resource.

[0052] Based on a third aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to a second terminal device on a first time domain resource and to transmit to a third terminal device on a second time domain resource.

[0053] Based on a third aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resources, and to transmit to the third terminal device on the second time domain resources.

[0054] Based on a third aspect of this application, in some possible implementations, if the reference signal is used for mobility measurement, the start symbol of the time slot in which the reference signal is located is located on a first time domain resource.

[0055] A fourth aspect of this application provides a communication device, comprising:

[0056] The processing module is also used to generate first indication information and second indication information;

[0057] The interface module is also used to send first indication information, which instructs the second terminal device to receive data on the first time domain resource.

[0058] The interface module is also used to send a second indication message, which instructs the third terminal device to receive data on the second time domain resource.

[0059] The interface module is also used to transmit a first signal using a second transmit power on a first time domain resource, and to transmit a second signal using a third transmit power on a second time domain resource, wherein the second transmit power is higher than the third transmit power.

[0060] Based on the fourth aspect of this application, in some possible implementations, the processing module is further configured to generate third instruction information;

[0061] The interface module is also used to send third indication information, which instructs the first network device to send a third signal using a second transmit power on a second time domain resource and to send a fourth signal using a third transmit power on a first time domain resource.

[0062] Based on the fourth aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device on the first time domain resource and to transmit to the third terminal device on the second time domain resource.

[0063] Based on the fourth aspect of this application, in some possible implementations, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resources, and to transmit to the third terminal device on the second time domain resources.

[0064] Based on the fourth aspect of this application, in some possible implementations, if the reference signal is used for mobility measurement, the start symbol of the time slot in which the reference signal is located is located on a first time domain resource.

[0065] The fifth aspect of this application provides a communication device, which may be a first device or a second device, or a component applied to the first device or the second device (e.g., a processor, circuit, chip, or chip system), or a logic module or software (e.g., CU, DU, or RU) capable of implementing all or part of the functions of the first device or the second device. The communication device includes:

[0066] A processor for executing a program that causes the communication device to perform the method as described in the first or second aspect of the foregoing and any possible implementation thereof.

[0067] Optionally, the communication device further includes a memory, and the processor is coupled to the memory; the memory is used to store programs.

[0068] The sixth aspect of this application provides a chip or chip system including at least one processor and a communication interface, the communication interface and at least one processor being interconnected via a line, the at least one processor being used to run computer programs or instructions to perform the communication method described in any of the possible implementations of the first or second aspect.

[0069] The communication interface in the chip can be an input / output interface, pins, or circuits.

[0070] In one possible implementation, the chip or chip system described above in this application further includes at least one memory storing instructions. The memory can be an internal storage unit of the chip, such as a register or cache, or it can be a storage unit of the chip itself, such as a read-only memory or random access memory.

[0071] The seventh aspect of this application provides a communication system, including a communication device that performs the first aspect and any possible implementation thereof, and a communication device that performs the second aspect and any possible implementation thereof.

[0072] An eighth aspect of this application provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the method described in the first aspect above, or cause the computer to perform the method described in the second aspect above.

[0073] The ninth aspect of this application provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the method described in the first aspect above, or cause the computer to perform the method described in the second aspect above. Attached Figure Description

[0074] Figure 1 is a schematic diagram of an embodiment of different channel / signal power bias in this application;

[0075] Figure 2 is a network structure diagram in an embodiment of this application;

[0076] Figure 3 illustrates a possible application scenario of the communication method in this application embodiment;

[0077] Figure 4 is a schematic diagram of an embodiment of the protective strip between the UL and DL sub-strips in this application;

[0078] Figure 5 is a schematic diagram of an embodiment of the communication method in this application;

[0079] Figure 6a is a schematic diagram of an embodiment of the adjacent channel range in this application;

[0080] Figure 6b is a schematic diagram of another embodiment of the adjacent channel range in this application;

[0081] Figure 7 is a schematic diagram of an embodiment of the power control benefits under SBFD in this application;

[0082] Figure 8 is a schematic diagram of another embodiment of the communication method in this application;

[0083] Figure 9 is a schematic diagram of an embodiment of downlink time-sharing scheduling in this application;

[0084] Figure 10 is a schematic diagram of an embodiment of the communication device in this application;

[0085] Figure 11 is a schematic diagram of another embodiment of the communication device in this application;

[0086] Figure 12 is a schematic diagram of another embodiment of the communication device in this application. Detailed Implementation

[0087] This application provides a communication method, communication device, and storage medium. By limiting the upper limit of the power control dynamic range corresponding to the first frequency domain resource, the power of the RE adjacent to the UL subband is restricted, thereby improving the frequency domain isolation capability and reducing the base station self-interference caused by the network device DL subband to the UL subband.

[0088] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0089] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0090] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0091] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0092] First, some technical terms involved in the embodiments of this application will be introduced.

[0093] 1) Downlink power control:

[0094] Downlink power control allocates the transmit power of various downlink physical channels, such as broadcast channels, control channels, data channels, and reference signals. The purpose of downlink power control is to minimize the transmit power of downlink channels while maintaining user reception quality, thereby controlling inter-cell interference. By default, downlink power allocation distributes the total power evenly across each resource element (RE) as the downlink transmit power per RE (i.e., the cell reference power). Differentiated power control for each channel and signal is primarily achieved by adding a power offset to the cell reference power.

[0095] Depending on the power offset configuration method, downlink power control is divided into static power control and dynamic power control. Static power control adjusts the transmit power by configuring power offset parameters based on the cell reference power (ReferencePwr), as shown in Figure 1. Dynamic power control adaptively adjusts the transmit power based on the actual transmission conditions of each channel or signal, while maintaining the cell reference power.

[0096] 2) Subband full duplex (SBFD):

[0097] SBFD is a new duplex standard that achieves full-duplex operation at the base station level by dividing a single carrier in Time Division Duplex (TDD) into non-overlapping uplink / downlink subbands and transmitting and receiving data separately on each subband. SBFD combines the advantages of TDD and Frequency Division Duplex (FDD), requiring no symmetrical spectrum resources. Flexible cross-subband scheduling reduces transmission latency and improves uplink coverage performance. Through its flexible frame structure, SBFD allows for user-level service capability customization to adapt to diverse service requirements.

[0098] 3) Bandwidth Part (BWP):

[0099] A Block-Wide Port (BWP) is a subset of contiguous resource blocks on a given carrier under a specific set of mathematical parameters (i.e., subcarrier spacing, etc.). It allows terminal devices to dynamically adjust the bandwidth they use based on service requirements and power consumption needs. The adjacent channel of a BWP refers to other channels or bandwidth portions adjacent to the BWP.

[0100] Please refer to Figure 2. The network architecture on which the communication method in this embodiment is based is briefly described below:

[0101] Figure 2 is a possible, non-limiting system schematic diagram. As shown in Figure 2, the communication system 10 includes a radio access network (RAN) 100, a core network (CN) 200, and an Internet 300. RAN 100 includes at least one RAN node (110a and 110b in Figure 2, collectively referred to as 110) and at least one terminal (120a-120j in Figure 2, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment (not shown in Figure 2). Terminal 120 is wirelessly connected to RAN node 110. RAN node 110 is wirelessly or wired connected to core network 200. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0102] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as a 4G, 5G, or future mobile communication system. RAN 100 can also be an open-radio access network (ORAN), a cloud-radio access network (CRAN), or a wireless fidelity (WiFi) system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0103] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, constitutes part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in communication system 10 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative. For example, network element 120i in Figure 2 can be a helicopter or drone, which can be configured as a mobile base station. For terminals 120j accessing RAN 100 through network element 120i, network element 120i is a base station; but for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes both referred to as communication devices. For example, network elements 110a and 110b in Figure 2 can be understood as communication devices with base station functions, and network elements 120a-120j can be understood as communication devices with terminal functions.

[0104] In one possible scenario, access network equipment includes, but is not limited to: evolved Node B (eNodeB), radio network controller (RNC), Node B (NB), base station (BS), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenario, wireless backhaul node, transmission point (TP), or transmission and reception point (TRP), etc., and can also be access network equipment in 5G mobile communication system. For example, a next-generation NodeB (gNB), TRP, or TP in an NR system; or one or a group of antenna panels (including multiple antenna panels) in a base station in a 5G mobile communication system; or, access network equipment can also be network nodes constituting a gNB or transmission point. Examples include centralized units (CU), distributed units (DU), centralized unit control planes (CU-CP), centralized unit user planes (CU-UP), or radio units (RU), etc. CUs and DUs can be separate or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units. For example, in remote radio units (RRU), active antenna units (AAU), or remote radio heads (RRH). Alternatively, access network equipment can also be servers, wearable devices, vehicles, or in-vehicle equipment, etc. For example, the access network equipment in V2X technology can be a roadside unit (RSU).It should be understood that the aforementioned TRP can be a device or module located on the network side of the aforementioned communication system and possessing corresponding communication functions. The TRP typically contains a communication module, circuit, or chip that performs the corresponding communication functions. The TRP can also be configured with program instructions for the corresponding communication functions.

[0105] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an open radio access network (ORAN) system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open-distributed unit (O-DU), CU-CP can also be called an open-centralized unit control plane (O-CU-CP), CU-UP can also be called an open-centralized unit user plane (O-CU-UP), and RU can also be called an open radio unit (O-RU). This application does not limit the specific names. Any of the units CU, CU-CP, CU-UP, DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0106] Optionally, for network elements in the ORAN system, each network element can implement the protocol layer functions shown in Table 1 below.

[0107] Table 1

[0108] It should be noted that in the ORAN system, the access network equipment in this application can be one or more network elements listed in Table 1 above.

[0109] The architecture of the CU and DU of the access network equipment is described below. An access network equipment includes at least one CU and at least one DU. Optionally, the access network equipment may also include at least one RU.

[0110] The following description uses an access network device consisting of one CU and one DU as an example. The CU has some core network functions and can include CU-CP and CU-UP. The CU and DU can be configured according to the protocol layer functions of the wireless network they implement. For example, the CU may be configured to implement the functions of the Packet Data Convergence Protocol (PDCP) layer and above (e.g., RRC and / or SDAP layers). The DU may be configured to implement the functions of protocol layers below the PDCP layer (e.g., RLC, MAC, and / or physical (PHY) layers). Alternatively, the CU may be configured to implement the functions of protocol layers above the PDCP layer (e.g., RRC and / or SDAP layers), and the DU may be configured to implement the functions of protocol layers below the PDCP layer (e.g., RLC, MAC, and / or PHY layers).

[0111] When a CU includes CU-CP and CU-UP, CU-CP is used to implement the control plane functions of the CU, and CU-UP is used to implement the user plane functions of the CU. For example, when a CU is configured to implement the functions of the PDCP layer, RRC layer, and SDAP layer, CU-CP is used to implement the RRC layer functions and the control plane functions of the PDCP layer, and CU-UP is used to implement the SDAP layer functions and the user plane functions of the PDCP layer.

[0112] The CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements can be access and mobility function (AMF) network elements, such as the AMF in a 5G system. The AMF is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover.

[0113] CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements, such as the user plane function (UPF) in a 5G system, are responsible for forwarding and receiving data in terminal devices.

[0114] The above CU and DU configurations are merely examples; the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements. For example, based on latency, functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0115] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0116] It should be noted that the access network equipment can be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, chip system, module, or control unit in the aforementioned device or apparatus; this application does not impose any specific limitation. It should also be noted that in this application, the term "access network equipment" can refer to the access network equipment itself, or to the chip, functional module, or integrated circuit within the access network equipment that performs the method provided in this application; this application does not impose any specific limitation.

[0117] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with each RAN node performing a portion of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-CPs, CU-UPs, or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0118] 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. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0119] A terminal can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart homes, smart offices, smart wearables, intelligent transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, communication modules, etc. The embodiments of this application do not limit the device form of the terminal. Terminals typically contain communication modules, circuits, or chips that perform corresponding communication functions. Terminals can also be configured with program instructions for performing corresponding communication functions.

[0120] Furthermore, the embodiments of this application can also be applied to other future communication technologies. The network architecture and service scenarios described in this application are for the purpose of more clearly illustrating the technical solutions of this application, and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will understand, with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0121] Figure 3 illustrates an application scenario applicable to an embodiment of this application. Because SBFD divides a single carrier of TDD into non-overlapping uplink and downlink subbands, and performs data transmission and reception on the subbands respectively, the access network device can send data to the terminal device and receive data from the terminal device simultaneously within the same time period.

[0122] Despite the many advantages of sub-band full-duplex technology, it also faces some challenges, such as self-interference from simultaneous transmission and reception by base stations, cross-link interference between base stations, and cross-link interference between terminals.

[0123] Self-interference from simultaneous transmission and reception at base stations arises because in SBFD (Single-band Receiver Detection and Distribution), the uplink and downlink subbands are closely adjacent, resulting in very small spectral spacing between transmitted and received signals, which easily leads to severe inter-transmitter interference. Cross-link interference between base stations occurs because signal transmission between different base stations can interfere with the uplink signal reception of another base station. Cross-link interference between terminals primarily occurs during signal transmission between different terminals. When one terminal transmits an uplink signal, it may interfere with the downlink signal reception of another terminal.

[0124] To reduce the self-interference of the downlink (DL) to the uplink (UL) base station in SBFD, one approach is to set up a guard band that is not used for data transmission between the UL and DL subbands, as shown in Figure 4.

[0125] However, when the guard band contains a small number of resource blocks (RBs), the reduction in self-interference from the perspective of frequency separation is limited, and the requirements for radio remote units (RRUs) are strict; when the guard band contains a large number of RBs, it will cause a great waste of resources and significantly affect downlink performance.

[0126] To reduce downlink interference from other base stations to remote terminal equipment, one approach is dynamic power control, which involves power reduction for near-point users, power increase for far-point users, and aggregation of idle broadband power. Power reduction for near-point users addresses the issue that if the reference power for a near-point user exceeds its power saturation threshold, transmitting at the reference power would actually degrade performance. Appropriately reducing the power from the reference power effectively improves downlink performance. Power increase for far-point users aims to improve demodulation performance by adaptively increasing the power of the physical downlink shared channel (PDSCH). Aggregation of idle broadband power aggregates the transmit power of idle base stations (RBs) onto scheduled base stations (RBs), thus increasing the transmit power of the scheduled RBs. The dynamic range of RE power control is the difference between the RE power and the average RE power at the base station's maximum output power under specified reference conditions. The dynamic range of RE is shown in Table 2 below.

[0127] Table 2: Dynamic Range of RE Power Control

[0128] However, dynamic power control requires complex coordination and scheduling between base stations to adjust the power of resources, and it may not be effective.

[0129] To address the aforementioned issues, this application provides a method. The following descriptions address downlink interference caused by base station self-interference and other downlink interference from other base stations to remote terminal devices.

[0130] I. Base station self-interference;

[0131] Please refer to Figure 5. One communication method in this embodiment includes:

[0132] 501. The network device determines the first transmit power.

[0133] The network device determines the first transmit power based on the power control dynamic range corresponding to the first frequency domain resource under the SBFD symbol. The first frequency domain resource is located in the first adjacent channel range of the uplink BWP. The upper limit of the power control dynamic range is less than or equal to the transmit power of the first adjacent channel range.

[0134] As shown in Figure 6a, the adjacent channel of the uplink BWP includes multiple adjacent channel ranges. The first frequency domain resource is located within the first adjacent channel range, and the upper limit of the power control dynamic range corresponding to the first frequency domain resource is less than or equal to the transmit power of the first adjacent channel range. The transmit power of the first adjacent channel range refers to the average RE power of the network device at its maximum output power; this transmit power is also known as the nominal transmit power. The transmit power of the first adjacent channel range is obtained through static allocation.

[0135] In this embodiment, since the first frequency domain resource is used for downlink transmission, the power of the RE adjacent to the UL subband is limited by limiting the upper limit of the power control dynamic range corresponding to the first frequency domain resource, thereby improving the frequency domain isolation capability and reducing the base station self-interference caused by the network device DL subband to the UL subband.

[0136] It should be noted that the RE power control dynamic range shown in Table 2 of this application embodiment applies to frequency domain resources under non-SBFD symbols. In other words, the power control dynamic range corresponding to frequency domain resources under SBFD symbols is different from the power control dynamic range corresponding to frequency domain resources under non-SBFD symbols.

[0137] Optionally, if the first adjacent channel range overlaps with the downlink BWP (as shown in Figure 6a), the network device performs power control on the first adjacent channel range.

[0138] In one possible implementation, the number of adjacent channel ranges in the adjacent channel of the uplink BWP is related to the transmit power level of the network device. For example, Figure 6a shows an adjacent channel including 3 adjacent channel ranges, where the first adjacent channel range overlaps with the downlink BWP.

[0139] Optionally, the uplink power control dynamic ranges corresponding to the frequency domain resources in the adjacent channel ranges are different, and the upper limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP. That is, the closer the RE is to the UL subband, the more power is restricted. Taking the three adjacent channel ranges shown in Figure 6a as an example, that is, the REs within one-third of the first adjacent channel of the UL BWP, the REs within one-third to two-thirds of the first adjacent channel of the UL BWP, and the REs from two-thirds to the first adjacent channel of the UL BWP.

[0140] For the RE within one-third of the first adjacent lane of the UL BWP, the RE power control dynamic range is shown in Table 3 below:

[0141] Table 3: Dynamic Range of RE Power Control

[0142] As shown in Table 3, the difference between the RE power and the average power of the RE modulated using quadrature phase shift keying (QPSK) within one-third of the first adjacent channel of the UL BWP is -4, and the difference between the RE power and the average power of the RE modulated using quadrature amplitude modulation (QAM) is -2.

[0143] In this embodiment of the application, by defining the RB position of the power limit under SBFD and the corresponding power control dynamic range, the self-interference of the base station caused by the DL subband of the network device to the UL subband is reduced.

[0144] For REs within one-third to two-thirds of the first adjacent lane of the UL BWP, the RE power control dynamic range is shown in Table 4 below:

[0145] Table 4: Dynamic Range of RE Power Control

[0146] As shown in Table 4, the difference between the RE power modulated by QPSK in one-third to two-thirds of the REs in the first adjacent channel of the UL BWP is -2, and the difference between the RE power modulated by QAM and the average power is -1.

[0147] For REs located within two-thirds of the first adjacent channel of the UL BWP to the first adjacent channel of the UL BWP, the dynamic range of RE power control is shown in Table 5 below:

[0148] Table 5: Dynamic Range of RE Power Control

[0149] As shown in Table 5, the RE power modulated by QPSK in one-third to two-thirds of the RE in the first adjacent channel of UL BWP is equal to the average power, while the difference between the RE power modulated by QAM and the average power is -1.

[0150] It should be understood that the above RE power control dynamic range is only an example. In actual applications, the adjacent channels of the uplink BWP may include more adjacent channel ranges, or the upper limit of the RE power control dynamic range may be other values, which are not limited here.

[0151] Optionally, network devices may limit the lower limit of the dynamic range of RE power control, provided that the terminal device capabilities allow or the channel quality is good.

[0152] Alternatively, it can be said that the lower limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0153] Taking the RE within one-third of the first adjacent lane of the UL BWP as an example, the dynamic range of RE power control is shown in Table 6 below:

[0154] Table 6: Dynamic Range of RE Power Control

[0155] Optionally, after limiting the power of the DL subbands adjacent to the UL BWP, a power margin can be configured to increase the transmit power of other downlink scheduling RBs. This power margin is obtained based on the power control dynamic range corresponding to the frequency domain resources in multiple adjacent channel ranges and the transmit power of those adjacent channel ranges.

[0156] For example, as shown in Figure 6b, a network device can determine the RE power in the second adjacent channel range and use the power margin to increase the transmit power in the second adjacent channel range.

[0157] Optionally, network devices can also reduce power consumption by limiting the power of adjacent DL subbands of the UL BWP; specific details are not specified here.

[0158] In this embodiment, the network device limits the RE power within a certain range adjacent to the UL subband under the SBFD symbol to reduce the impact on the sensitivity of the UL subband. As shown in Figure 7, when only limiting the RE power of the first one-third of the first adjacent channel of the UL BWP to 6dB, the two cases of the UL subband being configured in the middle of the DL subband (as shown in the left figure of Figure 7) and the UL subband being configured on one side of the DL subband (as shown in the right figure of Figure 7) can respectively achieve a gain of 6dB and 10dB.

[0159] 502. The network device sends a signal to the first terminal device on the first frequency domain resource according to the first transmit power.

[0160] The first frequency domain resources are allocated to the first terminal device, and the channel quality indicator (CQI) reported by the first terminal device is relatively high. In other words, the CQI reported by the first terminal device is higher than a preset threshold.

[0161] The embodiments of this application, while increasing the bandwidth of the guard band and reducing the interference of the DL subband to the UL subband, reduce resource waste and the impact on downlink transmission performance.

[0162] II. Downlink Interference from Other Base Stations to Remote Terminal Equipment

[0163] Please refer to Figure 8. One communication method in this embodiment includes:

[0164] 801. The second network device sends a first instruction message to the second terminal device, and correspondingly, the second terminal device receives the first instruction message from the second network device.

[0165] The second network device sends a synchronization signal and physical broadcasting channel block (SSB). The second terminal device calculates the reference signal receiving power (RSRP) based on the energy per resource element (EPRE) of the SSB and reports the RSRP to the second network device via the radio resource control (RRC) protocol. The second network device determines that the second terminal device is the remote terminal device, i.e., the remote UE, based on the RSRP value reported by the second terminal device.

[0166] The second network device sends a first instruction message to the second terminal device to instruct the second terminal device to receive data on the first time domain resources, wherein the first time domain resources include non-time-division scheduling downlink time slots and / or high-power time-division scheduling downlink time slots.

[0167] Specifically, high-power time-division scheduling downlink time slots are obtained by dividing time-division scheduling time slots. In TDD-UL-DL-Pattern, some downlink time slots are defined as downlink time slots that can be used for time-division scheduling, corresponding to the servingCellConfigCommon field in SIB1 configuration (i.e., tdd-UL-DL-ConfigurationCommon in ServingCellConfigCommonSIB). Network devices can select several time-division scheduling downlink time slots to perform power control on the frequency domain resources carrying data in the PDSCH with a transmission time interval (TTI) period. The time-division scheduling downlink time slots are further divided into high-power time-division scheduling time slots (hereinafter referred to as HD) and low-power time-division scheduling time slots (hereinafter referred to as LD), with HD and LD alternating periodically.

[0168] In non-time-division scheduling downlink time slots, network devices can perform downlink scheduling for all terminal devices within the cell, and all terminal devices in the cell can receive data. In HD (High-Degree) mode, network devices only perform downlink scheduling for remote UEs, while remote UEs simultaneously receive data. In LD (Local-Degree) mode, network devices only perform downlink scheduling for near-end UEs, while near-end UEs simultaneously receive data.

[0169] 802. The second network device sends a second instruction message to the third terminal device, and the third terminal device receives the second instruction message from the second network device.

[0170] The second network device determines that the third terminal device is a near-end UE. The specific determination method can be found in the description of step 801, and will not be repeated here. The second network device sends a second indication information to the third terminal device to instruct the third terminal device to receive data on the second time domain resources, wherein the second time domain resources include non-time-division scheduling downlink time slots and / or low-power time-division scheduling downlink time slots.

[0171] Optionally, the first signal and / or the second signal can be a reference signal (e.g., CSI-RS). The reference signal can be sent to the second terminal device on the first time domain resource and to the third terminal device on the second time domain resource. That is, the reference signal on the HD only applies to the far-end UE set, and the reference signal on the LD only applies to the near-end UE set. This situation is also known as complete isolation between HD and LD. CSI-RS for CM is implemented by controlling the periodicityAndOffset configuration in the NZP-CSI-RS-Resource IE (and the CSI-RS-ResourceMapping configuration in the CSI-RS-ResourceMapping IE); for CSI-IM, it is implemented by controlling the periodicityAndOffset (symbolLocation) configuration in the CSI-IM-Resource IE.

[0172] Reference signals can also be sent to the second and third terminal devices on the first time domain resource, and to the third terminal device on the second time domain resource. That is, reference signals on the HD can be applied to both the far-end and near-end UE sets, while reference signals on the LD are only applied to the near-end UE set. This situation is also known as partial isolation between HD and LD. In this case, an indicator field `powerControlOffsetHDLD` needs to be added to the NZP-CSI-RS-Resource IE to indicate the RE power offset between HD and LD for correct demodulation.

[0173] Optionally, if the reference signal is used for mobility measurement, the starting symbol of the time slot containing the reference signal is located on the first time domain resource. That is, for CSI-RS for mobility, the starting symbol of the time slot containing the reference signal, i.e., slotConfig(firstOFDMSymbolInTimeDomain) in CSI-RS-Resource-Mobility IE, is configured on the HD.

[0174] Optionally, if the reference signal is used for beam measurement, the transmission timing of the reference signal is located on the first time domain resource. That is, for CSI-RS for Beam Measurement, the transmission timing of the reference signal in periodicityAndOffset in NZP-CSI-RS-Resource IE and CSI-RS-ResourceMapping in CSI-RS-ResourceMapping IE are both configured on the HD.

[0175] Specifically, for SSBs, the power of the time slots within an SSB burst must be kept consistent. Therefore, the time domain resources corresponding to the SSB are HD by default, or the time slots corresponding to the SSBs are not enabled for time-division scheduling.

[0176] It should be noted that the timing between steps 801 and 802 is not limited in the embodiments of this application. Step 801 can be executed before step 802, after step 802, or simultaneously with step 802; the specific timing is not limited here.

[0177] 803. The second network device transmits the first signal using the second transmit power on the first time domain resource, and transmits the second signal using the third transmit power on the second time domain resource.

[0178] Specifically, the second network device transmits the first signal using a second transmit power on the first time domain resource (i.e., HD), and transmits the second signal using a third transmit power on the second time domain resource (i.e., LD), with the second transmit power being higher than the third transmit power.

[0179] In this embodiment, semi-static power control and time-sharing scheduling can more effectively reduce interference from neighboring cells to remote UEs, and the benefits are significant when the serving cell and neighboring cell quality of edge terminal devices are both poor.

[0180] Optionally, the embodiment shown in FIG8 further includes step 802a. Step 802a may be performed after step 802.

[0181] 802a. The second network device sends a third instruction message to the first network device, and correspondingly, the first network device receives the third instruction message from the second network device.

[0182] Optionally, the embodiment shown in FIG8 further includes step 803a. Step 803a may be performed after step 802a.

[0183] 803a. The first network device transmits a third signal using a third transmit power on a first time domain resource, and transmits a fourth signal using a second transmit power on a second time domain resource.

[0184] The third instruction information is used to instruct the first network device to transmit a third signal using a second transmit power on a second time domain resource, and to transmit a fourth signal using a third transmit power on a first time domain resource.

[0185] As shown in Figure 9, the second network device coordinates with other stations (e.g., interaction between Xn receivers) to ensure that at least one neighboring cell with strong interference (e.g., the first network device) also enables time-division scheduling. Through semi-static downlink power control, the HD time slot period of the first network device corresponds to the LD time slot period of the second network device, and vice versa. The RE power in the HD period corresponds to the normal power (e.g., reference power plus a power bias of the PDSCH), while the RE power in the LD period is the normal power plus a power-limited bias.

[0186] In this embodiment, although the remote UE cannot receive data during the LD time slot period, it is compensated by obtaining a larger transmission bandwidth during the HD time slot period and has lower co-channel interference from neighboring cells.

[0187] The communication method in the embodiments of this application has been described above. The communication device in the embodiments of this application is described below. Referring to Figure 10, the communication device 1000 can be used to execute the process performed by the network device in the embodiment shown in Figure 5 or the second network device in the embodiment shown in Figure 8. For details, please refer to the relevant descriptions in the foregoing method embodiments. The communication device 1000 can be a network device, or a component or device applied to a network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of a network device. The communication device can also be a terminal device, or a component or device applied to a terminal device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of a terminal device.

[0188] The communication device 1000 includes an interface module 1001 and a processing module 1002.

[0189] The processing module 1002 is used for data processing. The interface module 1001 can implement corresponding communication functions. The interface module 1001 can also be called a communication interface or a communication module.

[0190] Optionally, the communication device 1000 may further include a storage module, which can be used to store program code, program instructions and / or data. The processing module 1002 can read the instructions and / or data in the storage module so that the communication device 1000 can implement the aforementioned method embodiments.

[0191] The communication device 1000 can be used to perform the actions performed by the network device in the above method embodiments. For example, it can be a network device or a communication module within a network device, or a circuit or chip within a network device responsible for communication functions. The communication device 1000 can be a network device or a component configurable within a network device. The processing module 1002 is used to perform processing-related operations on the network device side in the above method embodiments. The interface module 1001 is used to perform reception-related operations on the network device side in the above method embodiments.

[0192] Optionally, the interface module 1001 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.

[0193] It should be noted that the communication device 1000 may include a transmitting module but not a receiving module. Alternatively, the communication device 1000 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme performed by the communication device 1000 includes both transmitting and receiving actions. For example, the communication device 1000 is used to perform the actions performed by the network device in the embodiment shown in FIG5 or the second network device in the embodiment shown in FIG8. For details, please refer to the relevant descriptions in the embodiments shown in FIG5 or FIG8; these will not be elaborated upon here.

[0194] For example, the communication device 1000 is used to execute the following scheme:

[0195] The processing module 1002 is used to determine the first transmit power. The first transmit power is determined based on the power control dynamic range corresponding to the first frequency domain resource under the sub-band full-duplex SBFD symbol. The first frequency domain resource is located in the first adjacent channel range of the adjacent channel of the uplink bandwidth BWP. The upper limit of the power control dynamic range is less than or equal to the transmit power of the first adjacent channel range.

[0196] Interface module 1001 is used to send a signal to the first terminal device on the first frequency domain resource according to the first transmit power.

[0197] In one possible implementation, the processing module 1002 is used to determine the first transmit power, including:

[0198] The processing module 1002 is specifically used to determine the first transmit power if the first adjacent channel range overlaps with the downlink BWP.

[0199] In another possible implementation, the adjacent channel of the uplink BWP includes multiple adjacent channel ranges, which include a first adjacent channel range. The number of adjacent channel ranges is related to the transmit power level.

[0200] In another possible implementation, the power control dynamic ranges corresponding to the frequency domain resources in multiple adjacent channel ranges are different, and the upper limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0201] In another possible implementation, the lower limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

[0202] In another possible implementation, the processing module 1002 is further configured to determine the transmit power of the second adjacent channel range, wherein the second adjacent channel range does not overlap with the downlink BWP, the transmit power of the second adjacent channel range is higher than the first transmit power, and the difference between the transmit power of the second adjacent channel range and the first transmit power is the power margin, which is obtained based on the power control dynamic range corresponding to the frequency domain resources in the multiple adjacent channel ranges and the transmit power of the multiple adjacent channel ranges.

[0203] In another possible implementation, the channel quality indicator of the first terminal device is higher than a preset threshold.

[0204] In another possible implementation, the processing module 1002 is also used to generate first indication information and second indication information;

[0205] The interface module 1001 is also used to send first indication information, which is used to instruct the second terminal device to receive data on the first time domain resource;

[0206] The interface module 1001 is also used to send second indication information, which is used to instruct the third terminal device to receive data on the second time domain resource;

[0207] The interface module 1001 is also used to transmit a first signal using a second transmit power on a first time domain resource, and to transmit a second signal using a third transmit power on a second time domain resource, wherein the second transmit power is higher than the third transmit power.

[0208] In another possible implementation, the processing module 1002 is also used to generate third indication information;

[0209] The interface module 1001 is also used to send third indication information, which instructs the first network device to send a third signal using a second transmit power on a second time domain resource and to send a fourth signal using a third transmit power on a first time domain resource.

[0210] In another possible implementation, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device on the first time domain resource and to transmit to the third terminal device on the second time domain resource.

[0211] In another possible implementation, the first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resource, and to transmit to the third terminal device on the second time domain resource.

[0212] In another possible implementation, if the reference signal is used for mobility measurement, the start symbol of the time slot in which the reference signal is located is on the first time domain resource.

[0213] In another possible implementation, if the reference signal is used for beam measurement, the timing of the reference signal transmission is located on the first time domain resource.

[0214] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0215] The processing module 1002 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The interface module 1001 can be implemented by a transceiver or transceiver-related circuitry. The interface module 1001 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0216] The following describes a communication device provided in an embodiment of this application. Please refer to Figure 11, which is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device can be a network device in the above method embodiments, or it can be a chip, chip system, or processor that supports the network device in implementing the above methods. This communication device can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.

[0217] The communication device may include one or more processors 1101, which are connected to a memory 1102, an input / output unit 1103, and a bus 1104. The processor 1101 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal, terminal chip, DU or CU, etc.), execute software programs, and process data from the software programs.

[0218] Optionally, the communication device may include one or more memories 1102, which may store instructions that can be executed on the processor 1101, causing the communication device to perform the methods described in the above method embodiments. Optionally, the memories 1102 may also store data. The processor 1101 and the memories 1102 may be configured separately or integrated together.

[0219] Optionally, the communication device may also include a transceiver and an antenna. A transceiver, also called a transceiver unit, transceiver, or transceiver circuit, is used to implement transmission and reception functions. A transceiver may include a receiver and a transmitter; the receiver, also called a receiver circuit, is used to implement the receiving function; the transmitter, also called a transmitter or transmitting circuit, is used to implement the transmitting function.

[0220] In another possible design, the processor 1101 may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or it may be used for transmitting or relaying signals.

[0221] In another possible design, the processor 1101 may optionally store instructions that, when executed, cause the communication device to perform the methods described in the above method embodiments. The instructions may be stored in the processor 1101; in this case, the processor 1101 may be implemented in hardware.

[0222] In another possible design, the communication device may include a circuit that can perform the sending, receiving, or communication functions of the network device in the aforementioned method embodiments. The processor and transceiver described in this application embodiment can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-type metal-oxide-semiconductor (NMOS), p-type metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0223] The communication device described in the above embodiments can be a network device, but the scope of the communication device described in the embodiments of this application is not limited thereto, and the structure of the communication device is not limited to FIG11. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be:

[0224] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0225] (2) A collection of one or more ICs, optionally including a storage component for storing data and instructions;

[0226] (3) ASIC, such as modem;

[0227] (4) Modules that can be embedded in other devices;

[0228] (5) Receivers, terminals, smart terminals, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.

[0229] (6) Others, etc.

[0230] For communication devices that can be chips or chip systems, please refer to the schematic diagram of the chip structure shown in Figure 12. The chip 1200 shown in Figure 12 includes a processor 1201 and an interface 1202. Optionally, it may also include a memory 1203. The number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple.

[0231] For cases where the chip is used to implement the functions of the network device in the embodiments of this application:

[0232] The interface 1202 is used to receive or output signals;

[0233] The processor 1201 is used to perform data processing operations of the network device.

[0234] It is understood that some optional features in the embodiments of this application can be implemented independently in certain scenarios without relying on other features, such as the current solution on which they are based, to solve the corresponding technical problems and achieve the corresponding effects. Alternatively, they can be combined with other features as needed in certain scenarios. Correspondingly, the communication device given in the embodiments of this application can also implement these features or functions, which will not be elaborated here.

[0235] It should be understood that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0236] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAK are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0237] This application also provides a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the methods described in the foregoing embodiments.

[0238] This application also provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the methods described in the foregoing embodiments.

[0239] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0240] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0241] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0242] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0243] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0244] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

Claims

1. A communication method, characterized in that, The method includes: A first transmit power is determined based on the power control dynamic range corresponding to the first frequency domain resource under the sub-band full-duplex SBFD symbol. The first frequency domain resource is located in the first adjacent channel range of the adjacent channel of the uplink bandwidth BWP. The upper limit of the power control dynamic range is less than or equal to the transmit power of the first adjacent channel range. The signal is transmitted to the first terminal device on the first frequency domain resource according to the first transmission power.

2. The method according to claim 1, characterized in that, Determining the first transmission power includes: If the first adjacent channel range overlaps with the downlink BWP, then the first transmit power is determined.

3. The method according to claim 1 or 2, characterized in that, The adjacent channel of the uplink BWP includes multiple adjacent channel ranges, the multiple adjacent channel ranges include the first adjacent channel range, and the number of adjacent channel ranges is related to the transmit power level.

4. The method according to claim 3, characterized in that, The power control dynamic ranges corresponding to the frequency domain resources in the multiple adjacent channel ranges are different from each other, and the upper limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

5. The method according to claim 4, characterized in that, The lower limit of the power control dynamic range is positively correlated with the distance from the adjacent channel range to the uplink BWP.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: The transmit power of the second adjacent channel range is determined. The transmit power of the second adjacent channel range is higher than the first transmit power. The difference between the transmit power of the second adjacent channel range and the first transmit power is the power margin. The power margin is obtained based on the power control dynamic range corresponding to the frequency domain resources in the plurality of adjacent channel ranges and the transmit power of the plurality of adjacent channel ranges.

7. The method according to any one of claims 1 to 6, characterized in that, The channel quality indicator of the first terminal device is higher than a preset threshold.

8. The method according to claim 1, characterized in that, The method further includes: Send a first instruction message, which instructs the second terminal device to receive data on the first time domain resource; Send a second instruction message, which instructs the third terminal device to receive data on the second time domain resource; A first signal is transmitted using a second transmit power on the first time domain resource, and a second signal is transmitted using a third transmit power on the second time domain resource, wherein the second transmit power is higher than the third transmit power.

9. The method according to claim 8, characterized in that, The method further includes: Send a third instruction message, which is used to instruct the first network device to send a third signal using the second transmit power on the second time domain resource, and to send a fourth signal using the third transmit power on the first time domain resource.

10. The method according to claim 8 or 9, characterized in that, The first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device on the first time domain resource and to transmit to the third terminal device on the second time domain resource.

11. The method according to claim 8 or 9, characterized in that, The first signal and / or the second signal are reference signals, which are used to transmit to the second terminal device and the third terminal device on the first time domain resource, and to transmit to the third terminal device on the second time domain resource.

12. The method according to claim 11, characterized in that, If the reference signal is used for mobility measurement, the starting symbol of the time slot in which the reference signal is located is on the first time domain resource.

13. The method according to claim 11 or 12, characterized in that, If the reference signal is used for beam measurement, the transmission timing of the reference signal is located on the first time domain resource.

14. A communication device, characterized in that, Includes modules or units for performing the method as described in any one of claims 1 to 13.

15. A communication device, characterized in that, include: A processor for executing a program that causes the communication device to perform the method as described in any one of claims 1 to 13.

16. A computer-readable storage medium, characterized in that, Includes instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 13.

17. A computer program product containing instructions, characterized in that, When it is run on a computer, it causes the computer to perform the method as described in any one of claims 1 to 13.

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