Beam determination method, device, and storage medium

Abstract

This document discloses a beam determination method, an apparatus, and a storage medium. The beam determination method applied to a first communication node includes receiving configuration information transmitted from a second communication node, and determining a beam to be used by the first communication node based on the configuration information, where the configuration information includes at least one of first configuration information, second configuration information, and third configuration information.

Description

[Technical Field]

[0001] The present application relates to the field of communications, for example, to a beam determination method, an apparatus, and a storage medium. [Background technology]

[0002] In a high-frequency scenario, a smart repeater uses a time division duplexing (TDD) configuration to amplify and forward uplink and downlink transmissions between a base station and a user equipment (UE) in a time division manner. The base station also provides some control information (e.g., beam configuration information) to the smart repeater to determine the beam used by the terminal for transmission, thereby enabling the smart repeater to perform transmission operations. However, how the smart repeater determines the beam to be used based on the beam configuration information is a technical problem that needs to be solved immediately. Summary of the Invention [Means for solving the problem]

[0003] The present embodiment is A beam determination method applied to a first communication node, receiving configuration information transmitted from a second communication node; determining a beam to be used by the first communication node based on the configuration information; the first communication node is a repeater and the second communication node is a base station; The configuration information includes at least one resource set, a resource group, and beam information corresponding to the resource group, the resource set includes at least one of the resource groups, and one of the resource groups corresponds to one of the beam information; The beam is a beam between the first communication node and the terminal. The aforementioneda beam to be used in a first link, and the beam in the beam information is also a transmission beam to be used by the first communication node in the first link and a reception beam to be used by the first communication node in the first link; A beam determination method is provided.

[0004] A beam determination method applied to a second communication node, determining configuration information; transmitting the configuration information to the first communication node for determining a beam to be used based on the configuration information by the first communication node; the beam is a beam used by the first communication node in a first link between the first communication node and a terminal, The configuration information includes at least one resource set, a resource group, and beam information corresponding to the resource group, the resource set includes at least one of the resource groups, and one of the resource groups corresponds to one of the beam information; The beam in the beam information is The aforementioned a transmitting beam used in a first link, and a receiving beam used by the first communication node in the first link; the first communication node is a repeater and the second communication node is a base station; A beam determination method is provided.

[0005] The present application is directed to a communication module, a memory, and one or more processors; the communication module is configured to conduct a communication interaction between a first communication node and a second communication node; the memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement a beam determination method according to any one of the above embodiments. Provides communications equipment.

[0006] The present embodiment is A computer program is stored that, when executed by a processor, implements the beam determination method according to any of the above embodiments. Provide a storage medium. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a communication schematic diagram of a smart repeater according to related art. [Figure 2] 1 is a flowchart of a beam determination method according to an embodiment of the present application. [Figure 3] 1 is a flowchart of another beam determination method according to an embodiment of the present application. [Figure 4] FIG. 10 is a schematic diagram illustrating how to determine a beam to be used using first configuration information according to an embodiment of the present application. [Figure 5] FIG. 10 is a schematic diagram illustrating how to determine a beam to be used using another first configuration information according to an embodiment of the present application. [Figure 6] FIG. 10 is a schematic diagram illustrating determining a beam to be used using additional first configuration information according to an embodiment of the present application. [Figure 7] FIG. 10 is a schematic diagram illustrating a method for determining a beam to be used using still another first configuration information according to an embodiment of the present application. [Figure 8] FIG. 2 is a schematic diagram of multiple resource groups according to an embodiment of the present application. [Figure 9] FIG. 10 is a schematic diagram illustrating the configuration of the correspondence relationship between resource groups and beam information according to an embodiment of the present application. [Figure 10] A schematic diagram illustrating the configuration of the correspondence relationship between resource sets and beam information in an embodiment of the present application. [Figure 11] A schematic diagram of the configuration of the correspondence between resource sets, resource groups and beam information in an embodiment of the present application. [Figure 12] A schematic diagram showing beam information corresponding to one time unit according to a resource type in an embodiment of the present application. [Figure 13]FIG. 10 is a schematic diagram showing beam information corresponding to one time unit according to a link according to an embodiment of the present application. [Figure 14] 1 is a structural block diagram of a beam determining device according to an embodiment of the present application; [Figure 15] FIG. 2 is a structural block diagram of another beam determining device according to an embodiment of the present application; [Figure 16] 1 is a structural schematic diagram of a communication device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, the present application will be described with reference to the accompanying drawings. Hereinafter, the present application will be described with reference to the accompanying drawings. The described examples are merely for the purpose of interpreting the present application and are not intended to limit the scope of the present application.

[0009] Coverage is crucial for cellular network deployment, and typically, complete network coverage can be provided by different types of network nodes, such as base stations, integrated access and backhaul (IAB) nodes, radio frequency repeaters (RF repeaters), etc.

[0010] New Radio (NR) can use higher frequencies. However, high-frequency channels usually have drawbacks such as large free propagation loss, susceptibility to oxygen gas absorption, and strong influence of rain attenuation. These have a significant impact on the coverage performance of high-frequency communication systems, intensifying the coverage challenge. In addition to adopting analog beamforming technology to extend the coverage range, NR also introduces IAB nodes. IAB nodes are relay nodes in NR, supporting access and backhaul through NR. The terminating node on the network side is the donor IAB. All IAB nodes are connected to the donor IAB via one hop or multi-hop. The donor IAB is a next-generation base station (gNB) that supports IAB functions. A gNB is an NR base station, and typically consists of one centralized unit (CU) and at least one distributed unit (DMU). The introduction of IAB nodes enables flexible and dense deployment of NR cells, eliminating the need to lay large amounts of optical fiber, saving network deployment costs and expanding network coverage. An IAB node that supports some UE functions may be called an IAB-MT, which connects wirelessly to a higher-level node (also called a parent node) to achieve backhaul. An IAB node that simultaneously supports gNB-DU functions is called an IAB-DU and can serve general UEs and IAB nodes (also called child nodes). IAB nodes are regenerative relays, and each data packet transmitted through the IAB node is accurately decoded and re-encoded by the IAB node before being transmitted to the next-hop node or terminal.

[0011] Repeaters, already used in second-generation mobile communication technology (2G), 3G, and 4G deployments, are devices for receiving, amplifying, and transmitting data in the downlink (from base station to terminal) and uplink (from terminal to base station) directions. Repeaters can be used to supplement network coverage and improve network coverage capabilities. They are the simplest and most cost-effective way to increase network coverage, boasting advantages such as low cost, ease of deployment, and no increased latency. However, they have the disadvantage of simultaneously amplifying desired signals and noise, potentially increasing interference (pollution) in the system. Radio frequency repeaters are non-regenerative relays; they simply amplify and transmit all received data. Radio frequency repeaters are typically full-duplex nodes, meaning they do not distinguish between uplink and downlink signals in terms of transmission and reception.

[0012] In NR deployments, the TDD method can be adopted, which may eliminate the need for simultaneous bidirectional amplify-and-forward (AFA) and reduce the pollution problem of general repeaters. Analog beamforming technology can be used to transmit to a single user, thereby extending coverage, especially at high frequencies, and general repeaters that are unaware of the network may not be able to obtain beam gain. Therefore, a smart repeater interposed between the general repeater and the IAB node is a preferred option. Figure 1 shows a communication schematic diagram of a smart repeater according to the related art. In the downlink direction (i.e., from the base station to the terminal UE) and the uplink direction, the smart repeater receives, amplifies, and transmits radiation or conducts radio frequency carriers. In the downlink, the smart repeater receives data from the base station, amplifies, and transmits it to the UE. In the uplink, the smart repeater receives data from the UE, amplifies, and transmits it to the base station. The process of the smart repeater receiving, amplifying, and transmitting data transmitted between the base station and the UE is called AFA. The base station can provide the smart repeater with some control information, such as configuration information (which may also be called beam configuration information), and determine the beam to be used for amplifying and forwarding based on the beam configuration information, thereby realizing intelligent amplifying and forwarding operation. However, how the base station provides the configuration information to the smart repeater and how the smart repeater determines the beam to use is a technical problem that needs to be solved as soon as possible.

[0013] In view of this, the embodiment of the present application provides a beam determination method that achieves the effect of determining a beam to be used by a first communication node.

[0014] In one embodiment, FIG. 2 is a flowchart of a beam determination method according to an embodiment of the present application. This embodiment can be performed by a communication device. Here, the communication device may be a first communication node. Illustratively, the first communication node may be a node having functions of receiving, amplifying, and transmitting, such as a smart repeater or relay station, or may be a node having functions of receiving, partially decoding, re-encoding, and forwarding. As shown in FIG. 2, this embodiment includes steps S210 to S220.

[0015] In S210, the configuration information transmitted from the second communication node is received.

[0016] At S220, a beam to be used by the first communication node is determined based on the configuration information, where the configuration information includes at least one of the first configuration information, the second configuration information, and the third configuration information.

[0017] In an embodiment, the first communication node receives at least one of the first configuration information, the second configuration information, and the third configuration information transmitted from the second communication node, and determines a beam to be used by the first communication node in the target time resource based on at least one of the three configuration information, thereby achieving the effect of the first communication node determining the beam.

[0018] In one embodiment, determining a beam to be used by the first communication node in a target time resource based on the configuration information includes at least one of determining a beam to be used in the target time resource based on beam information corresponding to the time unit indicated by the configuration information and the time unit in which the target time resource is located, and determining a beam to be used in the target time resource based on beam information corresponding to the resource group indicated by the configuration information and the resource group in which the target time resource is located.

[0019] In one embodiment, the first configuration information includes beam information corresponding to each time unit in the configuration period, or the first configuration information includes beam information corresponding to a portion of the time units in the configuration period. In this embodiment, the first communication node determining the beam to be used in each time unit based on the first configuration information may be understood as the second communication node providing the first communication node with periodic or quasi-static beam configuration information. In this embodiment, the first configuration information is used to indicate beam information corresponding to each time unit in the configuration period, where the indication granularity includes one of a resource type of the time unit as granularity and a time unit as granularity. In this embodiment, the resource type includes at least one of uplink, downlink, and flexible. In this embodiment, for F symbols within a time unit, the first communication node does not perform amplify-and-forward (AFO) in the F symbols by default. In this embodiment, the number of beams corresponding to one time unit may be one or more, and is not limited thereto. Here, the time unit may include a radio frame, a subframe, a slot, an integer multiple of a slot, a symbol, or an integer multiple of a symbol. In one embodiment, assuming that the configuration period includes N time units, the first configuration information includes beam information corresponding to each of the N time units in the configuration period, i.e., the first configuration information includes beam information corresponding to the first time unit, beam information corresponding to the second time unit, ..., beam information corresponding to the Nth time unit. In one embodiment, assuming that the configuration period includes N time units, the first configuration information includes beam information corresponding to at least one time unit in the configuration period and each of the at least one time unit. In one embodiment, if the first configuration information does not indicate corresponding beam information for one time unit or symbol, the first communication node adopts omnidirectional beams by default or does not perform amplify-and-forward in that time unit or symbol.

[0020] In one embodiment, the beam information includes at least one of a DL transmission beam corresponding to a downlink (DL) symbol, a DL reception beam corresponding to a DL symbol, an UL transmission beam corresponding to an uplink (UL) symbol, a UL reception beam corresponding to a UL symbol, a beam corresponding to a flexible (F) symbol, and a transmission beam of the second communication node.

[0021] In one embodiment, for one time unit, the DL transmission beam corresponding to the DL symbol is used to indicate the transmission beam to be used by the first communication node in the first link in the DL symbol within the time unit, the UL reception beam corresponding to the UL symbol is used to indicate the reception beam to be used by the first communication node in the first link in the UL symbol within the time unit, and the beam corresponding to the F symbol within the time unit is used to indicate the DL transmission beam to be used by the first communication node in the first link in the F symbol within the time unit, the UL reception beam to be used by the first communication node in the first link in the F symbol within the time unit, and the DL reception beam to be used by the first communication node in the second link in the F symbol within the time unit. In one time unit, the DL receive beam corresponding to the DL symbol is used to indicate the receive beam to be used by the first communication node on the second link in the DL symbol within the time unit, and in one time unit, the UL transmit beam corresponding to the UL symbol is used to indicate the transmit beam to be used by the first communication node on the second link in the UL symbol within the time unit, and in one time unit, the transmit beam of the second communication node is used to indicate the DL receive beam and / or UL transmit beam to be used by the first communication node on the second link in the time unit.

[0022] In the embodiment, the first link refers to a link between the first communication node and the third communication node, and the second link refers to a link between the second communication node and the first communication node. Illustratively, the third communication node may be a terminal, an IAB node, a base station, or a relay node.

[0023] In one embodiment, the beam corresponding to the F symbol includes at least one of a first transmitting / receiving beam, a first transmitting / receiving beam and a corresponding first F symbol group, first transmitting / receiving instruction information, a DL transmitting beam and a corresponding second F symbol group, a UL receiving beam and a corresponding third F symbol group, a second transmitting / receiving beam, a second transmitting / receiving beam and a corresponding fourth F symbol group, second transmitting / receiving instruction information, a DL receiving beam and a corresponding fifth F symbol group, a UL transmitting beam and a corresponding sixth F symbol group, a third transmitting / receiving beam, a third transmitting / receiving beam and a corresponding seventh F symbol group, uplink / downlink transmitting / receiving instruction information, a DL transmitting beam / DL receiving beam and a corresponding eighth F symbol group, and a UL transmitting beam / UL receiving beam and a corresponding ninth F symbol group. Here, the first transmitting / receiving beam includes a DL transmitting beam or a UL receiving beam, the second transmitting / receiving beam includes a DL receiving beam or a UL transmitting beam, and the third transmitting / receiving beam includes a DL transmitting beam / DL receiving beam or a UL transmitting beam / UL receiving beam. In this embodiment, the first transmitting / receiving instruction information is used to indicate whether the first transmitting / receiving beam is a DL transmitting beam or a UL receiving beam. For example, for transmit / receive beam 1, if the first transmit / receive instruction information is a0, the transmit / receive beam 1 is a DL transmit beam, and if the first transmit / receive instruction information is a1, the transmit / receive beam 1 is a UL receive beam. Here, a0 and a1 are two different values ​​of the first transmit / receive instruction information. In an embodiment, the second transmit / receive instruction information is used to indicate whether the second transmit / receive beam is a DL receive beam or a UL transmit beam. For example, for transmit / receive beam 1, if the second transmit / receive instruction information is b0, the transmit / receive beam 1 is a DL receive beam, and if the second transmit / receive instruction information is b1, the transmit / receive beam 1 is a UL transmit beam. Here, b0 and b1 are two different values ​​of the second transmit / receive instruction information. In an embodiment, the uplink / downlink transmit / receive instruction information is used to indicate whether the third transmit / receive beam is a DL receive beam and a DL transmit beam, or a UL receive beam and a UL transmit beam.

[0024] In one embodiment, when instructing a beam in the first link corresponding to a time domain resource according to a resource type for one time unit, the beam information may include at least one of a DL transmission beam corresponding to a DL symbol, a UL reception beam corresponding to a UL symbol, and a beam corresponding to an F symbol. For one time unit, the DL transmission beam corresponding to the DL symbol is used to instruct a transmission beam to be used by the first communication node for the first link in the DL symbol within the time unit, the UL reception beam corresponding to the UL symbol is used to instruct a reception beam to be used by the first communication node for the first link in the UL symbol within the time unit, and the beam corresponding to the F symbol is used to instruct at least one of a DL transmission beam to be used by the first communication node for the first link in the F symbol within the time unit and a UL reception beam to be used by the first communication node for the first link in the F symbol within the time unit. In one embodiment, the beam corresponding to the F symbol may include one of a first transmitting / receiving beam, a first transmitting / receiving beam and a corresponding first F symbol group, first transmitting / receiving instruction information, a DL transmitting beam and a corresponding second F symbol group, and a UL receiving beam and a corresponding third F symbol group. In this embodiment, for one time unit, the DL transmitting beam and a corresponding second F symbol group are used to indicate a DL transmitting beam and which F symbols of the first link the first communication node will use the DL transmitting beam for that time unit. For one time unit, the UL receiving beam and a corresponding third F symbol group are used to indicate a UL receiving beam and which F symbols of the first link the first communication node will use the UL receiving beam for that time unit. For one time unit, the first transmitting / receiving beam and a corresponding first F symbol group are used to indicate a transmitting / receiving beam and which F symbols of the first link the first communication node will use the first transmitting / receiving beam for that time unit.

[0025] In one embodiment, when instructing a beam for the second link corresponding to a time domain resource according to a resource type for one time unit, the beam information may include at least one of a DL receiving beam corresponding to a DL symbol, a UL transmitting beam corresponding to a UL symbol, and a beam corresponding to an F symbol. For one time unit, the DL receiving beam corresponding to the DL symbol is used to instruct a receiving beam to be used by the first communication node for the second link in the DL symbol within the time unit, the UL transmitting beam corresponding to the UL symbol is used to instruct a transmitting beam to be used by the first communication node for the second link in the UL symbol within the time unit, and the beam corresponding to the F symbol is used to instruct at least one of a DL receiving beam to be used by the first communication node for the second link in the F symbol within the time unit and a UL transmitting beam to be used by the first communication node for the second link in the F symbol within the time unit. In one embodiment, the beam corresponding to the F symbol may include one of a second transmitting / receiving beam, a second transmitting / receiving beam and a corresponding 4F symbol group, second transmitting / receiving instruction information, a DL receiving beam and a corresponding 5F symbol group, and a UL transmitting beam and a corresponding 6F symbol group. For one time unit, the second transmitting / receiving beam and a corresponding 4F symbol group are used to indicate the second transmitting / receiving beam and which F symbols of the second link the first communication node will use the second transmitting / receiving beam for that time unit. For one time unit, the DL receiving beam and a corresponding 5F symbol group are used to indicate the DL receiving beam and which F symbols of the second link the first communication node will use the DL receiving beam for that time unit. For one time unit, the UL transmitting beam and a corresponding 6F symbol group are used to indicate the UL transmitting beam and which F symbols of the second link the first communication node will use the UL transmitting beam for that time unit.

[0026] In one embodiment, when instructing beams for the first link and the second link corresponding to time domain resources according to resource types for one time unit, the beam information may include at least one of a DL transmission beam and a DL reception beam corresponding to a DL symbol, a UL transmission beam and a UL reception beam corresponding to a UL symbol, and a beam corresponding to an F symbol. In this embodiment, the beam corresponding to the F symbol includes at least one of a third transmission / reception beam, a third transmission / reception beam and a corresponding seventh F symbol group, uplink / downlink transmission / reception instruction information, a DL transmission beam and a DL reception beam and a corresponding eighth F symbol group, and a UL transmission beam and a UL reception beam and a corresponding ninth F symbol group. For one time unit, the third transmission / reception beam and a corresponding F symbol group are used to instruct the third transmission / reception beam and which F symbols within the time unit of the first link and the second link the first communication node will use the third transmission / reception beam. For one time unit, the DL receive beam, DL transmit beam, and the 8th F symbol group within the corresponding time unit are used to indicate the DL receive beam, DL transmit beam, which F symbols within that time unit of the second link the first communication node uses the DL receive beam, and which F symbols within that time unit of the first link the first communication node uses the DL transmit beam. For one time unit, the UL receive beam, UL transmit beam, and the 9th F symbol group within the corresponding time unit are used to indicate the UL receive beam, UL transmit beam, which F symbols within that time unit of the first link the first communication node uses the UL receive beam, and which F symbols within that time unit of the second link the first communication node uses the UL transmit beam.

[0027] In one embodiment, the second configuration information includes a resource group and beam information corresponding to the resource group. In one embodiment, the beam information corresponding to the resource group is: The beam information may be indicated by at least one of the following methods: specifying the beam information using resource groups as granularity; specifying the beam information using resource sets as granularity, with one resource set corresponding to one beam information; and specifying the beam information using resource sets as granularity, with one resource group in the resource set corresponding to one beam information, where the resource set includes at least one resource group. In this embodiment, when one resource set corresponds to one beam information, it may be understood that all resource groups in the resource set correspond to one beam information. In this embodiment, the resource group includes at least one of a DL resource group and a UL resource group. Correspondingly, in one embodiment, the beam information corresponding to the DL resource group includes at least one of a DL receiving beam and a DL transmitting beam. Here, the DL receiving beam includes a receiving beam in the second link of the first communication node and one transmitting beam of the second communication node. The DL transmitting beam includes a transmitting beam in the first link of the first communication node. In one embodiment, the beam information corresponding to the UL resource group includes at least one of a UL receiving beam and a UL transmitting beam. Here, the UL receive beam includes a receive beam for a first link of a first communication node, and the UL transmit beam includes a transmit beam for a second link of the first communication node and a transmit beam for a second communication node.

[0028] In one embodiment, one resource group corresponds to one beam information, where the beam information includes at least one of a DL transmission beam, a DL reception beam, a UL transmission beam, a UL reception beam, and a transmission beam of a second communication node.

[0029] In one embodiment, beam information corresponding to a resource group is: The beam information may be specified by the resource group or the resource set, and the beam information may be specified by the resource set.

[0030] In one embodiment, the third configuration information includes at least one of a time unit identifier and corresponding beam information, a beam information component, a list of beam information components, and component indication information, wherein the time unit identifier and corresponding beam information include at least one time unit and beam information corresponding to each of the at least one time unit, the beam information component indicates beam information corresponding to at least one time unit, the list of beam information components includes at least one beam information component, and the component indication information is used to indicate one component index.

[0031] In one embodiment, each tuple (or element) of the beam information component indicates beam information corresponding to one time unit according to a resource type or link.

[0032] In one embodiment, beam information corresponding to one time unit is indicated according to a resource type, and the beam information includes at least one of a DL receiving beam, a DL transmitting beam, a UL receiving beam, and a UL receiving beam.

[0033] In one embodiment, beam information corresponding to one time unit is indicated according to the link, and the beam information includes at least one of a beam on a first link of the first communication node, a beam on a second link of the first communication node, and a transmission beam of the second communication node.

[0034] In one embodiment, the third configuration information further includes a time unit identifier of the time unit indicating activation and an offset amount relative to the time unit in which signaling carrying the corresponding beam information, beam information component or component indication information was detected.

[0035] In one embodiment, the configuration information includes first configuration information and second configuration information, and when corresponding beam information of the same time resource is simultaneously indicated by the first configuration information and the second configuration information, the beam information indicated by the second configuration information overwrites or modifies the beam information indicated by the first configuration information. In one embodiment, when corresponding beam information of the same time resource is simultaneously indicated by the second configuration information and the first configuration information, the beam information indicated by the second configuration information can be used to overwrite the beam information indicated by the first configuration information.

[0036] In one embodiment, the configuration information includes first configuration information and third configuration information, and when corresponding beam information of the same time resource is simultaneously indicated by the first configuration information and the third configuration information, the beam information indicated by the third configuration information overwrites or modifies the beam information indicated by the first configuration information. In an embodiment, when corresponding beam information of the same time resource is simultaneously indicated by the third configuration information and the first configuration information, the beam information indicated by the third configuration information can be used to overwrite or modify the beam information indicated by the first configuration information.

[0037] In one embodiment, the configuration information includes second configuration information and third configuration information, and when corresponding beam information of the same time resource is simultaneously indicated by the second configuration information and the third configuration information, the beam information indicated by the third configuration information becomes invalid, i.e., the time resource uses the beam information indicated by the second configuration information.

[0038] In one embodiment, the DL receiving beam includes a receiving beam on the second link of the first communication node and one of the transmitting beams of the second communication node, the DL transmitting beam includes a transmitting beam on the first link of the first communication node, the UL receiving beam includes a receiving beam on the first link of the first communication node, and the UL transmitting beam includes a transmitting beam on the second link of the first communication node and one of the transmitting beams of the second communication node.

[0039] In one embodiment, the first communication node determines a transmission beam for the second link of the first communication node based on the transmission beam of the second communication node.

[0040] In one embodiment, the first communication node determines a receiving beam for the second link of the first communication node based on the transmitting beam of the second communication node.

[0041] In one embodiment, FIG. 3 is a flowchart of another beam determination method according to an embodiment of the present application. This embodiment can be performed by a communication device. Here, the communication device may be a second communication node. Illustratively, the second communication node may be a base station, a relay node, an IAB node, etc. As shown in FIG. 3, this embodiment includes steps S310 to S320.

[0042] In S310, the configuration information is determined.

[0043] At S320, configuration information is sent to the first communication node for the first communication node to determine the beam to be used based on the configuration information, and the configuration information includes at least one of the first configuration information, the second configuration information, and the third configuration information.

[0044] In one embodiment, the first configuration information includes beam information corresponding to each time unit in the configuration period, or the first configuration information includes beam information corresponding to a portion of the time unit in the configuration period.

[0045] In one embodiment, the beam information includes at least one of a DL transmission beam corresponding to a DL symbol, a DL reception beam corresponding to a DL symbol, a UL transmission beam corresponding to a UL symbol, a UL reception beam corresponding to a UL symbol, a beam corresponding to an F symbol, and a transmission beam of the second communication node.

[0046] In one embodiment, for one time unit, the DL transmission beam corresponding to the DL symbol is used to indicate the transmission beam to be used by the first communication node in the first link in the DL symbol within the time unit, the UL reception beam corresponding to the UL symbol is used to indicate the reception beam to be used by the first communication node in the first link in the UL symbol within the time unit, and the beam corresponding to the F symbol within the time unit is used to indicate the DL transmission beam to be used by the first communication node in the first link in the F symbol within the time unit, the UL reception beam to be used by the first communication node in the first link in the F symbol within the time unit, and the DL reception beam to be used by the first communication node in the second link in the F symbol within the time unit. In one time unit, the DL receive beam corresponding to the DL symbol is used to indicate the receive beam to be used by the first communication node on the second link in the DL symbol within the time unit, and in one time unit, the UL transmit beam corresponding to the UL symbol is used to indicate the transmit beam to be used by the first communication node on the second link in the UL symbol within the time unit, and in one time unit, the transmit beam of the second communication node is used to indicate the DL receive beam and / or UL transmit beam to be used by the first communication node on the second link in the time unit.

[0047] In one embodiment, the beam corresponding to the F symbol includes at least one of the first transmitting and receiving beam, the first transmitting and receiving beam and the corresponding first F symbol group, first transmitting and receiving instruction information, the DL transmitting beam and the corresponding second F symbol group, the UL receiving beam and the corresponding third F symbol group, the second transmitting and receiving beam, the second transmitting and receiving beam and the corresponding fourth F symbol group, second transmitting and receiving instruction information, the DL receiving beam and the corresponding fifth F symbol group, the UL transmitting beam and the corresponding sixth F symbol group, the third transmitting and receiving beam, the third transmitting and receiving beam and the corresponding seventh F symbol group, uplink and downlink transmitting and receiving instruction information, the DL transmitting beam, the DL receiving beam and the corresponding eighth F symbol group, and the UL transmitting beam, the UL receiving beam and the corresponding ninth F symbol group.

[0048] In one embodiment, the second configuration information includes a resource group and beam information corresponding to the resource group.

[0049] In one embodiment, one resource group corresponds to one beam information, where the beam information includes at least one of a DL transmission beam, a DL reception beam, a UL transmission beam, a UL reception beam, and a transmission beam of a second communication node.

[0050] In one embodiment, beam information corresponding to a resource group is: This includes at least one of: one resource group corresponds to one beam information; and all resource groups in one resource set correspond to one beam information.

[0051] In one embodiment, the third configuration information includes at least one of a time unit identifier and corresponding beam information, a beam information component, a list of beam information components, and component indication information, wherein the time unit identifier and corresponding beam information include at least one time unit and beam information corresponding to each of the at least one time unit, the beam information component indicates beam information corresponding to at least one time unit, the list of beam information components includes at least one beam information component, and the component indication information is used to indicate one component index.

[0052] In one embodiment, each tuple (or element) of the beam information component indicates beam information corresponding to one time unit according to a resource type or link.

[0053] In one embodiment, beam information corresponding to one time unit is indicated according to a resource type, and the beam information includes at least one of a DL receiving beam, a DL transmitting beam, a UL receiving beam, and a UL receiving beam.

[0054] In one embodiment, beam information corresponding to one time unit is indicated according to the link, and the beam information includes at least one of a beam on a first link of the first communication node, a beam on a second link of the first communication node, and a transmission beam of the second communication node.

[0055] In one embodiment, the third configuration information further includes a time unit identifier of the time unit indicating activation and an offset amount relative to the time unit in which signaling carrying the corresponding beam information, beam information component or component indication information was detected.

[0056] In one embodiment, the configuration information includes first configuration information and second configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the second configuration information, the beam information indicated by the second configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0057] In one embodiment, the configuration information includes first configuration information and third configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the third configuration information, the beam information indicated by the third configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0058] In one embodiment, the configuration information includes second configuration information and third configuration information, and when corresponding beam information of the same time resource is simultaneously indicated by the second configuration information and the third configuration information, the beam information indicated by the third configuration information becomes invalid, i.e., the time resource uses the beam information indicated by the second configuration information.

[0059] In one embodiment, the DL receiving beam includes a receiving beam on the second link of the first communication node and one of the transmitting beams of the second communication node, the DL transmitting beam includes a transmitting beam on the first link of the first communication node, the UL receiving beam includes a receiving beam on the first link of the first communication node, and the UL transmitting beam includes a transmitting beam on the second link of the first communication node and one of the transmitting beams of the second communication node.

[0060] For the interpretation of each parameter in the beam determination method applied to the second communication node, please refer to the explanation of the corresponding parameter in the beam determination method applied to the first communication node in the above embodiment, and the explanation will be omitted here.

[0061] In one embodiment, the first communication node is a repeater and the second communication node is a base station, and the process of determining a beam using at least one of the first configuration information, the second configuration information, and the third configuration information is described.

[0062] In one embodiment, the beam determination process will be described using an example in which the base station periodically sets the beam used by the repeater (i.e., the configuration information is the first configuration information). In the embodiment, when determining the beam used by the repeater using the first configuration information, the following four examples may be included:

[0063] Example 1: For one time unit, instruct the beam on the corresponding first link according to the resource type.

[0064] The first configuration information includes beam information corresponding to each of N time units in the configuration period, where N is the total number of time units included in the configuration period.

[0065] In the embodiment, the first configuration information is beam information corresponding to the first time unit, beam information corresponding to the second time unit, . . . beam information corresponding to the Nth time unit.

[0066] The beam information includes at least one of a DL transmission beam corresponding to a DL symbol, a UL reception beam corresponding to a UL symbol, and a beam corresponding to an F symbol.

[0067] For one time unit, the DL transmission beam corresponding to the DL symbol is used to indicate the DL transmission beam used by the repeater in the DL symbol within that time unit of the first link, i.e., the beam used by the repeater when transmitting to the terminal.

[0068] For one time unit, the UL receiving beam corresponding to the UL symbol is used to indicate the UL receiving beam used by the repeater in the UL symbol within that time unit of the first link, i.e., the beam used when the repeater receives transmission from the terminal.

[0069] For one time unit, the beam corresponding to the F symbol is used to indicate at least one of the DL transmission beam to be used by the repeater in the F symbol within that time unit of the first link and the UL reception beam to be used by the repeater in the F symbol within that time unit of the first link.

[0070] In an embodiment, the beam corresponding to the F symbol is The information includes one of the first transmitting and receiving beam, the first transmitting and receiving beam and the corresponding first F symbol group, the first transmitting and receiving instruction information and the first transmitting and receiving beam, the first transmitting and receiving instruction information, the first transmitting and receiving beam and the corresponding first F symbol group, the DL transmitting beam and the corresponding second F symbol group, and the UL receiving beam and the corresponding third F symbol group.

[0071] For one time unit, the DL transmission beam and corresponding second F symbol group are used to indicate the DL transmission beam and which F symbols within that time unit the repeater will use that DL transmission beam for the first link.

[0072] For one time unit, the UL receive beam and corresponding third F symbol group are used to indicate the UL receive beam and which F symbols within that time unit the repeater will use that UL receive beam for the first link.

[0073] For one time unit, the first transmitting / receiving beam and corresponding first F symbol group are used to indicate the first transmitting / receiving beam and which F symbols within that time unit of the first link the repeater will use the first transmitting / receiving beam.

[0074] In the embodiment, the first transmission and reception instruction information is used to indicate whether the first transmission and reception beam is a DL transmission beam or a UL reception beam. For example, for transmission and reception beam 1, if the first transmission and reception instruction information is a0, the transmission and reception beam 1 is a DL transmission beam, and if the first transmission and reception instruction information is a1, the transmission and reception beam 1 is a UL reception beam. Here, a0 and a1 are two different values ​​of the first transmission and reception instruction information.

[0075] In one embodiment, the identifier of the first transmitting and receiving beam is used to determine whether the first transmitting and receiving beam is a DL transmitting beam or a UL receiving beam. For example, if the transmitting beam (i.e., DL transmitting beam) and the receiving beam (i.e., UL receiving beam) in the first link of the repeater adopt unified transmitting and receiving beam identifiers 1 to L1 (where 1 to M1 are transmitting beam identifiers and M1+1 to M1+L1 are receiving beam identifiers), the repeater can determine whether the F symbol corresponds to a transmitting beam or a receiving beam based on the identifier of the first transmitting and receiving beam corresponding to the F symbol in the first configuration information.

[0076] A beam (also called a spatial domain filter) is represented by one of a beam identifier, a reference signal identifier, a Transmission Configuration Indication (TCI) state, and a spatial relationship information identifier. Other beam pointing schemes are not excluded, and this application does not impose any restrictions on the beam pointing scheme.

[0077] In one embodiment, F symbol groups are used to indicate a set of F symbols within a time unit, where a time unit consists of one or more slots, and F symbol groups within a time unit consist of F symbol groups in all slots within the time unit.

[0078] An F symbol group within a slot is indicated by at least one of the starting F symbol and number of F symbols within the slot, and the starting F symbol and ending F symbol within the slot, a resource indication value (RIV) indicates one or more consecutive F symbols within the slot, and a bitmap indicates the F symbols that make up the F symbol group within the slot.

[0079] 4 is a schematic diagram illustrating the use of the first configuration information according to an embodiment of the present application. As shown in FIG. 4, for example, the configuration period includes four time units. If the DL transmission beams corresponding to the DL symbols in the first and second time units are set to DL beam 1 and DL beam 2, respectively, the repeater determines that the DL transmission beams to be used are beam 1 and beam 2 in the first and second time units, i.e., the repeater uses beam 1 and beam 2 to transmit to the terminal. If the DL transmit beam and UL receive beam corresponding to the DL symbol and UL symbol in the third time unit are set to DL beam 1 and UL beam 2, respectively, and no beam corresponding to the F symbol is set and no amplify-and-forward is performed in the F symbol by default, then in the third time unit, the repeater determines that the DL transmit beam to be used in the DL symbol is beam 1, i.e., the repeater transmits to the terminal using beam 1 in the DL symbol, and determines that the UL receive beam to be used in the UL symbol is beam 2, i.e., the repeater receives transmission from the terminal using beam 2 in the UL symbol, and no amplify-and-forward is performed in the F symbol. If the UL receive beam corresponding to the UL symbol in the fourth time unit is set to UL beam 3, then in the fourth time unit, the repeater determines that the UL receive beam to be used is beam 3, i.e., the repeater receives transmission from the terminal using beam 3 in the UL symbol.

[0080] The number of beams corresponding to one resource type in one time unit may be one or more, and this application is not limited thereto. For example, there may be more than one DL transmission beam corresponding to a DL symbol in the time unit, more than one UL reception beam corresponding to a UL symbol in the time unit, and more than one DL transmission beam and / or UL reception beam corresponding to an F symbol in the time unit.

[0081] Similarly, the beam corresponding to one time domain resource indicated by the configuration information in all the following embodiments and examples may be one or more beams, that is, the present application does not limit the number of beams corresponding to one time domain resource in the configuration information.

[0082] Example 2: For one time unit, instruct the beam on the corresponding second link depending on the resource type.

[0083] In an embodiment, the first configuration information includes beam information corresponding to each of M time units in the configuration period, where M is the total number of time units included in the configuration period.

[0084] In the embodiment, the configuration information is beam information corresponding to the first time unit, beam information corresponding to the second time unit, and so on, corresponding to M-th time units.

[0085] The beam information includes at least one of a DL receiving beam corresponding to a DL symbol, a UL transmitting beam corresponding to a UL symbol, and a beam corresponding to an F symbol.

[0086] For one time unit, the DL receive beam corresponding to the DL symbol is used to indicate the receive beam used by the repeater in the DL symbol within that time unit of the second link.

[0087] For one time unit, the UL transmit beam corresponding to the UL symbol is used to indicate the transmit beam used by the repeater in the UL symbol within that time unit for the second link.

[0088] For one time unit, the beam information corresponding to the F symbol is used to indicate at least one of the DL receiving beam to be used by the repeater in the F symbol within that time unit of the second link and the UL transmitting beam to be used by the repeater in the F symbol within that time unit of the second link.

[0089] The beam corresponding to the F symbol is Includes one of the second transmitting and receiving beam, the second transmitting and receiving beam and the corresponding 4F symbol group, the second transmitting and receiving instruction information and the second transmitting and receiving beam, the second transmitting and receiving instruction information, the second transmitting and receiving beam and the corresponding 4F symbol group, the DL receiving beam and the corresponding 5F symbol group, and the UL transmitting beam and the corresponding 6F symbol group.

[0090] For one time unit, the DL receive beam and the corresponding 5th F symbol group are used to indicate the DL receive beam and which F symbols within that time unit the repeater will use that DL receive beam for the second link.

[0091] For one time unit, the UL transmission beam and corresponding 6F symbol group are used to indicate the UL transmission beam and which F symbols within that time unit the repeater will use that UL transmission beam for the second link.

[0092] For one time unit, the second transmit / receive beam and the corresponding fourth F symbol group are used to indicate the second transmit / receive beam and which F symbols within that time unit of the second link the repeater will use the second transmit / receive beam.

[0093] In an embodiment, the second transmission / reception instruction information is used to indicate whether the second transmission / reception beam is a DL reception beam or a UL transmission beam. For example, for transmission / reception beam 1, if the second transmission / reception instruction information is b0, the transmission / reception beam 1 is a DL reception beam, and if the second transmission / reception instruction information is b1, the transmission / reception beam 1 is a UL transmission beam. Here, b0 and b1 are two different values ​​of the second transmission / reception instruction information.

[0094] In one embodiment, the identifier of the second transmitting and receiving beam is used to determine whether the second transmitting and receiving beam is a DL receiving beam or a UL transmitting beam. For example, if the receiving beam (i.e., DL receiving beam) and the transmitting beam (i.e., UL transmitting beam) in the second link of the repeater adopt a unified beam identifier of 1 to L2 (where 1 to M2 are receiving beam identifiers and M2+1 to M2+L2 are transmitting beam identifiers), the repeater can determine whether the beam corresponding to the symbol in the first configuration information is a receiving beam or a transmitting beam based on the beam identifier corresponding to the symbol, or can determine whether the beam corresponding to F symbols in the time unit is a DL receiving beam or a UL transmitting beam based on the second transmitting and receiving instruction information.

[0095] The DL receive beam includes the receive beam for the second link of the repeater and one of the transmit beams of the base station, and the UL transmit beam includes the transmit beam for the second link of the repeater and one of the transmit beams of the base station.

[0096] In an embodiment, when the DL receive beam includes the transmit beam of the base station, the repeater determines its receive beam for the second link based on the transmit beam of the base station. For example, when the transmit beam of the base station is indicated by the spatial relationship information, the receive beam used by the repeater is a spatial domain filter corresponding to the spatial relationship information, i.e., in the second link, the repeater receives using the spatial domain filter corresponding to the spatial relationship information. Also, for example, when the transmit beam of the base station is indicated by the reference signal transmitted from the base station, the receive beam used by the repeater is the same as the receive beam used to receive the parameter signal, i.e., in the second link, the repeater receives using the same spatial domain filter as the spatial domain filter used to receive the parameter signal.

[0097] If the UL transmission beam includes the transmission beam of the base station, the repeater determines its transmission beam for the second link based on the transmission beam of the base station. For example, if the transmission beam of the base station is indicated by spatial relationship information, the transmission beam used by the repeater is a spatial domain filter corresponding to the spatial relationship information, i.e., the repeater transmits using a spatial domain filter corresponding to the spatial relationship information. Also, for example, if the transmission beam of the base station is indicated by a reference signal transmitted from the base station, the transmission beam used by the repeater is the same as the reception beam used to receive the parameter signal, i.e., the repeater transmits using the same spatial domain filter as the spatial domain filter used to receive the parameter signal.

[0098] FIG. 5 is a schematic diagram illustrating how to determine a beam to be used using another first configuration information according to an embodiment of the present application. As shown in Figure 5, for example, the configuration period includes two time units, and each time unit includes two slots. If the DL receiving beam corresponding to the DL symbol in the first time unit is set to DL beam rx1, in the first time unit, the repeater determines that the DL receiving beam to be used is beam rx1, i.e., the repeater uses beam rx1 to receive transmissions from the base station. If the DL receiving beam corresponding to the DL symbol in the second time unit is set to DL beam rx2, and the UL transmitting beam corresponding to the UL symbol is set to UL beam tx2, and no beam corresponding to the F symbol is set, and it is considered that the repeater will not amplify and forward in the F symbol, in the second time unit, the repeater determines that the DL receiving beam to be used in the DL symbol is beam rx2, i.e., the repeater uses beam rx2 in the DL symbol to receive transmissions from the base station, and determines that the transmitting beam to be used in the UL symbol is beam tx2, i.e., the repeater uses beam tx2 in the UL symbol to transmit to the base station, and does not amplify and forward in the F symbol. That is, the DL receive beam indicates the receive beam used by the repeater when receiving transmission from the base station on the DL link, and the UL transmit beam indicates the transmit beam used by the repeater when transmitting to the base station on the UL link.

[0099] 5, the DL symbol indicates the DL receiving beam of the repeater (e.g., DL beam rx1), i.e., the receiving beam of the repeater's second link. The DL symbol may also indicate the transmitting beam of the base station, and the repeater determines the DL receiving beam of the repeater based on the transmitting beam of the base station, i.e., the repeater determines the receiving beam of the repeater's second link based on the transmitting beam of the base station.

[0100] 5, the UL symbol indicates the repeater's UL transmission beam (e.g., UL beam tx2), i.e., the repeater's transmission beam for the second link. The UL symbol may also indicate the base station's transmission beam, and the repeater determines the repeater's UL transmission beam based on the base station's transmission beam, i.e., the repeater determines the repeater's transmission beam for the second link based on the base station's transmission beam.

[0101] Example 3: For one time unit, instruct the beam on the corresponding first link and second link according to the resource type.

[0102] In an embodiment, the first configuration information includes beam information corresponding to each of N time units in the configuration period, where N is the total number of time units included in the configuration period.

[0103] In the embodiment, the configuration information is beam information corresponding to the first time unit, beam information corresponding to the second time unit, . . . beam information corresponding to the Nth time unit.

[0104] The beam information includes at least one of a DL receiving beam and a DL transmitting beam corresponding to a DL symbol, a UL receiving beam and a UL transmitting beam corresponding to a UL symbol, and a beam corresponding to an F symbol.

[0105] For one time unit, the DL receive beam and DL transmit beam corresponding to the DL symbol are used to indicate the receive beam used by the repeater in the DL symbol within that time unit of the second link and the transmit beam used by the repeater in the DL symbol within that time unit of the first link, respectively.

[0106] For one time unit, the UL receive beam and UL transmit beam corresponding to the UL symbol are used to indicate the receive beam used by the repeater in the UL symbol within that time unit of the first link and the transmit beam used by the repeater in the UL symbol within that time unit of the second link, respectively.

[0107] For one time unit, the beam corresponding to the F symbol is used to indicate at least one of the receiving beam used by the repeater in the F symbol within that time unit of the second link and the transmitting beam used by the repeater in the F symbol within that time unit of the first link, the receiving beam used by the repeater in the F symbol within that time unit of the first link and the transmitting beam used by the repeater in the F symbol within that time unit of the second link.

[0108] The beam corresponding to the F symbol is The information includes one of the third transmitting and receiving beam, the third transmitting and receiving beam and the corresponding 7F symbol group, the uplink / downlink instruction information, the third transmitting and receiving beam, the uplink / downlink instruction information, the third transmitting and receiving beam and the corresponding 7F symbol group, the DL receiving beam / DL transmitting beam and the corresponding 8F symbol group, and the UL receiving beam / UL transmitting beam and the corresponding 9F symbol group.

[0109] For one time unit, the DL receive beam, DL transmit beam, and the 8th F symbol group in the corresponding time unit are used to indicate the DL receive beam, DL transmit beam, which F symbols in that time unit of the second link the repeater will use the DL receive beam, and which F symbols in that time unit of the first link the repeater will use the DL transmit beam.

[0110] For one time unit, the UL receive beam, UL transmit beam, and the 9th F symbol group in the corresponding time unit are used to indicate the UL receive beam, UL transmit beam, which F symbols in that time unit of the first link the repeater will use the UL receive beam, and which F symbols in that time unit of the second link the repeater will use the UL transmit beam.

[0111] For one time unit, the third transmit / receive beam and the corresponding 7F symbol group are used to indicate the third transmit / receive beam and which F symbols within that time unit the repeater will use the third transmit / receive beam for the first link and the second link.

[0112] In an embodiment, the uplink / downlink indication information is used to indicate whether the third transmitting / receiving beam is a DL receiving beam / DL transmitting beam or a UL receiving beam / UL transmitting beam.

[0113] The DL receive beam includes the receive beam for the repeater's second link and one of the base station's transmit beams. The DL transmit beam includes the transmit beam for the repeater's first link. Here, the UL receive beam includes the receive beam for the repeater's first link. The UL transmit beam includes the transmit beam for the repeater's second link and one of the base station's transmit beams.

[0114] In an embodiment, if the DL receiving beam includes the transmitting beam of the base station, the repeater determines the receiving beam for the second link based on the transmitting beam of the base station, where the determination method can refer to the above example, and the description is omitted here.

[0115] If the UL transmission beam includes the transmission beam of the base station, the repeater determines the transmission beam of its second link based on the transmission beam of the base station, where the determination method can refer to the above example, and the description is omitted here.

[0116] 6 is a schematic diagram illustrating the use of the first configuration information to determine the beam to be used according to an embodiment of the present application. For example, assume that the configuration period includes four time units. For example, if the DL receiving beam and DL transmitting beam corresponding to the DL symbol in the first time unit are set to {DL beam rx1, DL beam tx1}, the repeater determines that the DL receiving beam and DL transmitting beam to be used are beam rx1 and beam tx1, respectively, in the first time unit. That is, the repeater uses beam rx1 to receive transmissions from the base station and beam tx1 to transmit to the terminal. For example, if the DL receiving beam and DL transmitting beam corresponding to the DL symbol in the second time unit are set to {DL beam rx2, DL beam tx2}, the repeater determines that the DL receiving beam and DL transmitting beam to be used are beam rx2 and beam tx2, respectively, in the second time unit. That is, the repeater uses beam rx2 to receive transmissions from the base station and beam tx2 to transmit to the terminal. If the DL receiving beam and DL transmitting beam corresponding to the DL symbol in the third time unit are set to {DL beam rx3, DL beam tx3}, the UL receiving beam and UL transmitting beam corresponding to the UL symbol are set to {UL beam rx4, UL beam tx4}, no beam corresponding to the F symbol is set, and it is considered that the repeater will not perform amplify and forward in the F symbol in the third time unit, then in the third time unit, the repeater determines that the DL receiving beam and DL transmitting beam to be used are beam rx3 and beam tx3, respectively, i.e., the repeater receives transmissions from the base station using beam rx3 in the DL symbol and transmits them to the terminal using beam tx3, and determines that the UL receiving beam and UL transmitting beam to be used are beam rx4 and beam tx4, respectively, i.e., the repeater receives transmissions from the terminal rx4 using beam rx4 in the UL symbol and transmits them to the base station using beam tx4, and does not perform amplify and forward in the F symbol.If the UL receive beam and UL transmit beam corresponding to the UL symbol in the fourth time unit are set to {UL beam rx5, UL beam tx5}, in the fourth time unit, the repeater determines that the UL receive beam and UL transmit beam to be used are beam rx5 and beam tx5, respectively. That is, the repeater receives transmissions from the terminal using beam rx5 in the UL symbol and transmits them to the base station using beam tx5. That is, the DL receive beam and DL transmit beam indicate the receive beam and transmit beam to be used by the repeater when receiving, amplifying, and forwarding transmissions from the base station to the terminal in the DL link. The UL receive beam and UL transmit beam indicate the receive beam and transmit beam to be used by the repeater when receiving, amplifying, and forwarding transmissions from the terminal to the base station in the UL link.

[0117] 6, the DL symbol indicates the DL receiving beam of the repeater (e.g., DL beam rx1), i.e., the receiving beam of the repeater's second link. The DL symbol may also indicate the transmitting beam of the base station, and the repeater determines the DL receiving beam of the repeater based on the transmitting beam of the base station, i.e., the repeater determines the receiving beam of the repeater's second link based on the transmitting beam of the base station.

[0118] In Figure 6, the UL symbol indicates the repeater's UL transmission beam (e.g., UL beam tx4), i.e., the repeater's transmission beam for the second link. The UL symbol may also indicate the base station's transmission beam, and the repeater determines the repeater's UL transmission beam based on the base station's transmission beam, i.e., the repeater determines the repeater's transmission beam for the second link based on the base station's transmission beam.

[0119] Example 4: For one time unit, directing beams on the corresponding first and / or second links depending on the resource type.

[0120] In an embodiment, the first configuration information includes beam information corresponding to each of N time units in the configuration period, where N is the total number of time units included in the configuration period.

[0121] In the embodiment, the first configuration information is beam information corresponding to the first time unit, beam information corresponding to the second time unit, . . . beam information corresponding to the Nth time unit.

[0122] The beam information includes at least one of a beam for the first link of the repeater, a beam for the second link of the repeater, and a transmission beam of the base station.

[0123] For one time unit, the beam of the first link of the repeater is used to indicate the receiving beam and the transmitting beam that the repeater will use in the time unit on the first link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, that is, the repeater uses the same beam when transmitting to and receiving from a terminal. When the time unit includes a DL symbol, the beam of the first link of the repeater indicates the transmitting beam that the repeater will use in the DL symbol. When the time unit includes a UL symbol, the beam of the first link of the repeater indicates the receiving beam that the repeater will use in the UL symbol. When the time unit includes a DL symbol and a UL symbol, the beam of the first link of the repeater simultaneously indicates the transmitting beam that the repeater will use in the DL symbol and the receiving beam that the repeater will use in the UL symbol.

[0124] For one time unit, the beam of the repeater's second link or the transmitting beam of the base station is used to indicate the receiving beam and transmitting beam used by the repeater in that time unit of the second link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, that is, the repeater adopts the same beam when receiving from the base station and when transmitting to the base station. When the time unit includes a DL symbol, the beam of the repeater's second link or the transmitting beam of the base station indicates the receiving beam used in the DL symbol. When the time unit includes a UL symbol, the beam of the repeater's second link or the transmitting beam of the base station indicates the transmitting beam used in the UL symbol. When the time unit includes a DL symbol and a UL symbol, the beam of the repeater's second link or the transmitting beam of the base station simultaneously indicates the receiving beam used in the DL symbol and the transmitting beam used in the UL symbol.

[0125] The repeater determines the receive beam and transmit beam to be used by the repeater in the second link based on the transmit beam of the base station. For example, if the transmit beam of the base station is indicated by the spatial relationship information, the beam (including the receive beam and the transmit beam) used by the repeater is a spatial domain filter corresponding to the spatial relationship information, i.e., in the second link, the repeater performs transmission and reception using the spatial domain filter corresponding to the spatial relationship information. Also, for example, if the transmit beam of the base station is indicated by the reference signal transmitted from the base station, the beam (including the receive beam and the transmit beam) used by the repeater is the same as the receive beam used to receive the parameter signal, i.e., in the second link, the repeater performs transmission and reception using the same spatial domain filter as the spatial domain filter used to receive the parameter signal.

[0126] In one embodiment, the first configuration information may include beam information corresponding to a portion of the time units in the configuration period, and in an embodiment, the first configuration information includes beam information corresponding to at least one time unit in the configuration period and each of the at least one time unit. For the time units indicated by the first configuration information, the beam determination method is the same as in Example 1, Example 2, Example 3, or Example 4, and description thereof will be omitted here.

[0127] 7 is a schematic diagram illustrating another example of determining a beam to be used using the first configuration information according to an embodiment of the present application. As shown in FIG. 7, for example, a configuration period includes two time units, each of which includes two slots. If the beam of the first link of the repeater in the first time unit is set to beam 1, the repeater determines that the DL transmission beam to be used in the first time unit is beam 1. If the beam of the first link of the repeater in the second time unit is set to beam 2, and no beam corresponding to the F symbol is set, and it is considered that the repeater will not amplify and forward in the F symbol, the repeater determines that the DL transmission beam to be used in the DL symbol is beam 2 and the receiving beam to be used in the UL symbol is also beam 2 in the second time unit. That is, the repeater uses beam 2 in both the DL symbol and the UL symbol, and does not amplify and forward in the F symbol. That is, for one time unit, the beam of the first link of the repeater acts as both a DL transmission beam and a UL receiving beam.

[0128] In one embodiment, the beam determination process is described using an example of setting a beam that can be used in a specific resource (i.e., the configuration information is the second configuration information). In the embodiment, the beam determination process may include the following four examples regarding using the second configuration information to determine the beam that the repeater uses.

[0129] In an embodiment, the repeater receives second configuration information including resource groups and beam information corresponding to the resource groups, and determines the beams it will use for the resource groups based on the second configuration information.

[0130] Beam information corresponding to the resource group: A method of specifying beam information with resource group as granularity, A method in which beam information is specified using a resource set as a granularity, and one resource set corresponds to one beam information, i.e., all resource groups in a resource set correspond to one beam information; The beam information is specified by at least one of the following methods: a method in which beam information is specified using a resource set as a granularity and one resource group in the resource set corresponds to one piece of beam information.

[0131] A resource set contains one or more resource groups.

[0132] In one embodiment, the resource group includes at least one of a DL resource group and a UL resource group.

[0133] In an embodiment, the beam information corresponding to the DL resource group includes at least one of a DL receiving beam and a DL transmitting beam, where the DL receiving beam includes a receiving beam for the second link of the repeater and one of a transmitting beam of the base station, and the DL transmitting beam includes a transmitting beam for the first link of the repeater.

[0134] In an embodiment, the beam information corresponding to the UL resource group includes at least one of a UL receiving beam and a UL transmitting beam, where the UL receiving beam includes a receiving beam for a first link of the repeater, and the UL transmitting beam includes a transmitting beam for a second link of the repeater and a transmitting beam of the base station.

[0135] In an embodiment, if the DL receiving beam includes the transmitting beam of the base station, the repeater determines the receiving beam for its second link based on the transmitting beam of the base station, where the determination method can refer to the description of the previous example, and the description is omitted here.

[0136] If the UL transmission beam includes the transmission beam of the base station, the repeater determines the transmission beam of its second link based on the transmission beam of the base station, where the determination method can refer to the previous example and will not be described again.

[0137] In one embodiment, the beam information corresponding to the resource group includes at least one of a beam for the first link of the repeater, a beam for the second link of the repeater, and a transmission beam of the base station.

[0138] For one resource group, the beam in the first link of the repeater is used to indicate the receiving beam and transmitting beam that the repeater will use in that resource group of the first link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, that is, the repeater uses the same beam when transmitting to and receiving from a terminal. For a resource group including a DL symbol, the beam in the first link of the repeater indicates the transmitting beam to be used in that resource group, and for a resource group including a UL symbol, the beam in the first link of the repeater indicates the receiving beam to be used in that resource group.

[0139] For one resource group, the beam of the repeater's second link or the transmitting beam of the base station is used to indicate the receiving beam and transmitting beam used by the repeater in that resource group of the second link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, that is, the repeater adopts the same beam when receiving from the base station and when transmitting to the base station. For a resource group including a DL symbol, the beam of the repeater's second link or the transmitting beam of the base station indicates the receiving beam used in that resource group, and for a resource group including a UL symbol, the beam of the repeater's second link or the transmitting beam of the base station indicates the transmitting beam used in that resource group.

[0140] The repeater does not want one resource group to contain DL symbols as well as UL symbols.

[0141] In one embodiment, the beam information corresponding to the resource set includes at least one of a beam for the first link of the repeater, a beam for the second link of the repeater, and a transmission beam of the base station.

[0142] For one resource set, the beam in the first link of the repeater is used to indicate the receiving beam and / or transmitting beam to be used by the repeater in all resource groups in the resource set of the first link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, and the repeater adopts the same beam when transmitting to and receiving from a terminal. For a resource group whose resource set includes a DL symbol, the beam in the first link of the repeater indicates the transmitting beam to be used in the resource group, and for a resource group whose resource set includes a UL symbol, the beam in the first link of the repeater indicates the receiving beam to be used in the resource group.

[0143] For one resource set, the repeater's beam for the second link or the base station's transmitting beam is used to indicate the receiving beam and / or transmitting beam used by the repeater for all resource groups in the resource set of the second link. For example, one beam in the beam information is both a transmitting beam and a receiving beam, i.e., the repeater adopts the same beam when receiving from the base station and when transmitting to the base station. For a resource group whose resource set includes a DL symbol, the repeater's beam for the second link or the base station's transmitting beam indicates the receiving beam used for the resource group, and for a resource group whose resource set includes a UL symbol, the repeater's beam for the second link or the base station's transmitting beam indicates the transmitting beam used for the resource group.

[0144] The repeater does not want one resource group to contain DL symbols as well as UL symbols.

[0145] In one embodiment, the repeater determines the receive beam and transmit beam to be used by the repeater for the second link based on the transmit beam of the base station, where the determination method is the same as in Example 4 of the above embodiment, and the description thereof is omitted here.

[0146] Example 1: Resource group configuration method

[0147] In an embodiment, a resource group is a periodic group of time domain resources, and the time domain resources within one period include at least one of a group of symbols, multiple groups of symbols, a group of time units, and multiple groups of time units. Here, a group of symbols includes at least one symbol, and a group of time units includes at least one time unit. For example, FIG. 8 is a schematic diagram of multiple resource groups according to an embodiment of the present application. For one resource group, the time domain resources within one period are a group of consecutive symbols (e.g., resource group 1) or multiple groups of consecutive symbols (e.g., resource group 2, resource group 3) within a slot.

[0148] In one embodiment, the second configuration information further includes resource group configuration related parameters for determining the resource groups. The resource group configuration related parameters include at least one of a resource group configuration period, a slot offset amount, and a symbol position corresponding to the resource group within a slot. For example, resource group 1 and resource group 2 in FIG. 8 can be determined by the above parameters, and the system frame n in which the resources in the resource groups are located can be determined. f and slot n s teeth,

number

[0149] Example 2: Specify beam information using resource groups as granularity.

[0150] Beam information is specified using a resource group as a granularity, i.e., one resource group corresponds to one beam information. Figure 9 is a schematic diagram of the configuration of the correspondence relationship between resource groups and beam information according to an embodiment of the present application. As shown in Figure 9, one resource group corresponds to one beam information, i.e., the beam information corresponding to resource groups 1, 2, ..., Z is beam information 1, 2, ..., Z, respectively.

[0151] For DL ​​resource groups, one DL resource group corresponds to one beam information, and the beam information includes at least one of a DL transmission beam and a DL reception beam. For example, if the beam information corresponding to DL resource group 1 is DL transmission beam tx1, the repeater determines that the transmission beam used in DL resource group 1 of the first link is beam tx1. Also, for example, if the beam information corresponding to DL resource group 1 is DL reception beam rx1 and DL transmission beam tx1, the repeater determines that the reception beam used in DL resource group 1 of the second link is beam rx1, and the transmission beam used in DL resource group 1 of the first link is beam tx1. Other DL resource groups are similar, and descriptions are omitted here.

[0152] For a UL resource group, one UL resource group corresponds to one beam information, and the beam information includes at least one of a UL transmission beam and a UL reception beam. For example, if the beam information corresponding to UL resource group 1 is UL reception beam rx2, the repeater determines that the reception beam used in UL resource group 1 of the first link is beam rx2. Also, for example, if the beam information corresponding to UL resource group 1 is UL reception beam rx2 and UL transmission beam tx2, the repeater determines that the reception beam used in UL resource group 1 of the first link is beam rx2 and the transmission beam used in UL resource group 1 of the second link is beam tx2. Other UL resource groups are similar, and their descriptions are omitted here.

[0153] One resource group corresponds to one beam information, and the beam information includes at least one of a beam for the first link of the repeater, a beam for the second link of the repeater, and a transmission beam of the base station. For example, if the beam information corresponding to resource group 1 is beam 1 for the first link of the repeater, and resource group 1 includes a DL symbol, the repeater determines that the transmission beam used in resource group 1 of the first link is beam 1, and if resource group 1 includes a UL symbol, the repeater determines that the reception beam used in resource group 1 of the first link is beam 1. For example, if the beam information corresponding to resource group 1 is beam 2 for the second link of the repeater, and resource group 1 includes a DL symbol, the repeater determines that the reception beam used in resource group 1 of the second link is beam 2, and if resource group 1 includes a UL symbol, the repeater determines that the transmission beam used in resource group 1 of the second link is beam 2.

[0154] In addition, if the beam information corresponding to the resource group is the transmitting beam of the base station, the repeater determines the beam for the repeater's second link based on the transmitting beam of the base station, and then determines the receiving beam or transmitting beam to be used in the resource group of the second link for the beam for the repeater's second link according to the beam information.

[0155] Example 3: Beam information is indicated using a resource set as a granularity, and one resource set corresponds to one piece of beam information.

[0156] Beam information is specified with a resource set as the granularity, and all resource groups in a resource set correspond to one beam information. Figure 10 is a schematic diagram of the configuration of the correspondence relationship between resource sets and beam information according to an embodiment of the present application. As shown in Figure 10, there is a one-to-one correspondence relationship between resource sets and beam information, that is, the beam information corresponding to resource sets 1, 2, ..., J is beam information 1, 2, ..., J, respectively.

[0157] For DL ​​resource sets composed of DL resource groups, one DL resource set corresponds to one beam information, and the beam information includes at least one of a DL transmission beam and a DL reception beam. For example, if the beam information corresponding to DL resource set 1 is DL transmission beam tx1, the repeater determines that the transmission beam used for all DL resource groups in DL resource set 1 of the first link is beam tx1. Also, for example, if the beam information corresponding to DL resource set 1 is DL reception beam rx1 and DL transmission beam tx1, the repeater determines that the reception beam used for all DL resource groups in DL resource set 1 of the second link is beam rx1, and the transmission beam used for all DL resource groups in DL resource set 1 of the first link is beam tx1. Other DL resource sets are similar, and descriptions are omitted here.

[0158] For a UL resource set composed of UL resource groups, one UL resource set corresponds to one beam information, and the beam information includes at least one of a UL transmission beam and a UL reception beam. For example, if the beam information corresponding to UL resource set 1 is UL reception beam rx2, the repeater determines that the reception beam used for all UL resource groups in UL resource set 1 of the first link is beam rx2. Also, for example, if the beam information corresponding to UL resource set 1 is UL reception beam rx2 and UL transmission beam tx2, the repeater determines that the reception beam used for all UL resource groups in UL resource set 1 of the first link is beam rx2, and the transmission beam used for all UL resource groups in UL resource set 1 of the second link is beam tx2. Other UL resource sets are similar and will not be described here.

[0159] One resource set corresponds to one beam information, and the beam information includes at least one of the beam for the first link of the repeater, the beam for the second link of the repeater, and the transmission beam of the base station. The beam information corresponding to all resource groups in one resource set is the same. For example, the beam information corresponding to resource set 1 is beam 1 for the first link of the repeater. For a resource group in which resource set 1 includes a DL symbol, the repeater determines that the transmission beam to be used in the resource group in resource set 1 of the first link is beam 1. For a resource group in which resource set 1 includes a UL symbol, the repeater determines that the reception beam to be used in the resource group in resource set 1 of the first link is beam 1. Also, for example, the beam information corresponding to resource set 1 is beam 2 in the second link of the repeater, and for a resource group in which resource set 1 includes a DL symbol, the repeater determines that the receiving beam to be used in that resource group in resource set 1 of the second link is beam 2, and for a resource group in which resource set 1 includes a UL symbol, the repeater determines that the transmitting beam to be used in that resource group in resource set 1 of the second link is beam 2.

[0160] In addition, if the beam information corresponding to the resource set is the transmitting beam of the base station, the repeater determines the beam for the repeater's second link based on the transmitting beam of the base station, and then determines the receiving beam or transmitting beam to be used for all resource groups within the resource set of the second link for the beam for the repeater's second link according to the beam information.

[0161] Example 4: Beam information is specified using a resource set as a granularity, and one resource group in the resource set corresponds to one beam information.

[0162] Beam information is specified using a resource set as a granularity, and one resource group in a resource set corresponds to one beam information. Fig. 11 is a schematic diagram illustrating the configuration of the correspondence between resource sets, resource groups, and beam information according to an embodiment of the present application. As shown in Fig. 11, beam information corresponding to resource groups a1, a2..., an in resource set 1 is beam information e1, e2..., en, respectively; beam information corresponding to resource groups b1, b2..., bm in resource set 2 is beam information f1, f2..., fm..., respectively; and beam information corresponding to resource groups c1, c2..., ck in resource set J is beam information g1, g2..., gk, respectively.

[0163] For a DL resource set composed of DL resource groups, one DL resource group in the DL resource set corresponds to one beam information, and the beam information includes at least one of a DL transmission beam and a DL reception beam. In the embodiment, examples of beam information corresponding to the DL resource group refer to the above examples, and descriptions thereof are omitted here.

[0164] For a UL resource set composed of UL resource groups, one DL resource group in the DL resource set corresponds to one beam information, and the beam information includes at least one of a UL transmitting beam and a UL receiving beam. In the embodiment, examples of the beam information corresponding to the UL resource group refer to the above examples, and the description here is omitted.

[0165] For one resource set, one resource group in the resource set corresponds to one beam information, and the beam information includes at least one of the beam for the first link of the repeater, the beam for the second link of the repeater, and the transmission beam of the base station. For examples of beam information corresponding to resource groups, please refer to the examples above, and explanations will be omitted here.

[0166] In one embodiment, the beam determination process is described using an example in which the beam information component list indicates the beams that the first communication node can use (i.e., the configuration information is the third configuration information). In the embodiment, determining the beam to be used by the repeater using the third configuration information may include the following three examples:

[0167] The repeater receives third configuration information and determines a beam to be used in the time unit based on the third configuration information. Here, the third configuration information includes a time unit identifier and at least one of corresponding beam information, beam information component, beam information component list, and component indication information. The beam information component indicates beam information corresponding to at least one time unit, the beam information component list includes at least one beam information component, one beam information component corresponds to one component index, and the component indication information is used to indicate one component index. The time unit identifier and corresponding beam information include at least one time unit and beam information corresponding to each of the at least one time unit.

[0168] Each element in the beam information component indicates beam information corresponding to one time unit according to a resource type or a link, where when indicating beam information corresponding to one time unit according to a resource type, the beam information includes at least one of a DL transmission beam corresponding to a DL symbol, a DL reception beam corresponding to a DL symbol, a UL transmission beam corresponding to a UL symbol, and a UL reception beam corresponding to a UL symbol, and when indicating beam information corresponding to one time unit according to a link, the beam information includes at least one of a beam for a first link of the repeater, a beam for a second link of the repeater, and a transmission beam of the base station.

[0169] In one embodiment, the third configuration information includes a time unit identifier and corresponding beam information, and after receiving the configuration information, the repeater determines the beam to be used in the corresponding time unit based on the time unit identifier and the corresponding beam information.

[0170] In one embodiment, the third configuration information includes a beam information component, and after receiving the configuration information, the repeater determines the beam to be used in the corresponding time unit based on the beam information component.

[0171] In one embodiment, the third configuration information includes a list of beam information components and component indication information. The list of beam information components is carried in the first signaling, and the component indication information is carried in the second signaling. The repeater obtains the list of beam information components through the first signaling, obtains one component index through the second signaling, and obtains one beam information component in the list of beam information components using the component index. This allows the repeater to determine a beam to be used in a corresponding time unit based on the beam information component.

[0172] Preferably, the third configuration information further includes an offset amount (offset) of the time unit instructing activation relative to the time unit in which the signaling carrying the beam information component or the component instruction information is detected. For example, assuming that the signaling carrying the component instruction information is detected in time unit n, offset=0 indicates that activation starts from time unit n, and offset=k indicates that activation starts from time unit n+k.

[0173] Example 1: The third configuration information includes a list of beam information components.

[0174] The list of beam information components includes at least one beam information component. Table 1 is a list of beam information components according to an embodiment of the present application. As shown in Table 1, the list of beam information components includes L+1 beam information components, where the beam information component corresponding to component index 0 is (p00, p01, p02..., p0r), the beam information component corresponding to component index 1 is (p10, p11, p02..., p1s)..., and the beam information component corresponding to component index L is (pL0, pL1, pL2..., pLt).

[0175] Pij is an element of the beam information component and indicates beam information corresponding to one time unit. For example, the beam information component corresponding to component index 0 is (p00, p01, p02..., p0r), and the beam information component sequentially indicates beam information corresponding to r+1 time units.

[0176] [Table 1]

[0177] Example 2: Each element of the beam information component indicates beam information corresponding to one time unit according to the resource type.

[0178] Each element in the beam information component indicates beam information corresponding to one time unit according to a resource type, where the beam information includes at least one of a DL transmit beam corresponding to a DL symbol, a DL receive beam corresponding to a DL symbol, a UL transmit beam corresponding to a UL symbol, and a UL receive beam corresponding to a UL symbol.

[0179] In one embodiment, the beam information includes at least one of a DL transmission beam corresponding to a DL symbol and a UL reception beam corresponding to a UL symbol. For example, FIG. 12 is a schematic diagram illustrating beam information corresponding to one time unit according to a resource type according to an embodiment of the present application. As shown in FIG. 12, beam information component i is (pi0, pi1, pi2, pi3), where pi0 indicates that the DL transmission beam to be used in the corresponding time unit is beam b11, pi1 indicates that the DL transmission beam to be used in the corresponding time unit is beam b21 and the UL reception beam to be used in the corresponding time unit is beam b22, pi2 indicates that the DL transmission beam to be used in the corresponding time unit is beam b31 and the UL reception beam to be used in the corresponding time unit is beam b32, and pi3 indicates that the UL reception beam to be used in the corresponding time unit is b41.

[0180] In one embodiment, the beam information includes at least one of a DL receiving beam corresponding to a DL symbol and a UL transmitting beam corresponding to a UL symbol.

[0181] In one embodiment, the beam information includes at least one of a DL receiving beam and a DL transmitting beam corresponding to a DL symbol, and a UL receiving beam and a UL transmitting beam corresponding to a UL symbol.

[0182] In one embodiment, the DL receive beam includes one of the repeater's receive beam for the second link and the base station's transmit beam. The UL transmit beam includes the repeater's transmit beam for the second link and the base station's transmit beam. If the DL receive beam includes the base station's transmit beam, the repeater determines its receive beam for the second link based on the base station's transmit beam. If the UL transmit beam includes the base station's transmit beam, the repeater determines its transmit beam for the second link based on the base station's transmit beam.

[0183] In this example, the meaning of each parameter in the beam information is explained in the above example, and will not be described here.

[0184] Example 3: Each element of the beam information component indicates beam information corresponding to one time unit according to the link.

[0185] Each element in the beam information component indicates beam information corresponding to one time unit according to a link, where the beam information includes at least one of a beam on the first link of the repeater, a beam on the second link of the repeater, and a transmitting beam of the base station.

[0186] In one embodiment, the beam information includes a beam for the first link of the repeater. For example, FIG. 13 is a schematic diagram illustrating beam information corresponding to one time unit according to a link according to an embodiment of the present application. As shown in FIG. 13, the beam information component j is (pj0, pj1, pj2, pj3), where pj0 indicates that the DL transmission beam to be used in the corresponding time unit is beam b1, pj1 indicates that the DL transmission beam to be used in the corresponding time unit is beam b2 and the UL reception beam to be used is also b2, i.e., beam b2 functions as both the DL transmission beam and the uplink reception beam, pj2 indicates that the DL transmission beam to be used in the corresponding time unit is beam b3 and the UL reception beam to be used is also b3, and pj3 indicates that the UL reception beam to be used in the corresponding time unit is b4.

[0187] In one embodiment, the beam information includes a beam on the second link of the repeater or a transmission beam of the base station.

[0188] In one embodiment, the beam information includes a beam on a first link of the repeater and a beam on a second link of the repeater.

[0189] In one embodiment, the beam information includes the beam for the first link of the repeater and the transmission beam of the base station.

[0190] In one embodiment, if the beam information includes the transmitting beam of the base station, the repeater determines the receiving beam and transmitting beam that the repeater will use for the second link based on the transmitting beam of the base station.

[0191] In this example, the meaning of each parameter in the beam information is explained in the above example, and will not be described here.

[0192] The above embodiments and examples may be combined in any way as long as they are not inconsistent, and may be combined in accordance with a certain priority order. Some combination examples are given below.

[0193] In one embodiment, for one time domain resource, when the second configuration information and the first configuration information simultaneously indicate beam information corresponding to the time domain resource, the beam information indicated by the second configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0194] In one embodiment, for one time domain resource, when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the third configuration information, the beam information indicated by the third configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0195] In one embodiment, for one time domain resource, if the second configuration information and the third configuration information simultaneously indicate beam information corresponding to the time domain resource, the beam information indicated by the third configuration information becomes invalid, that is, the time domain resource uses the beam information indicated by the second configuration information.

[0196] In all the above embodiments and examples, the first configuration information preferably further includes at least one of a configuration period and a subcarrier spacing. Here, the subcarrier spacing is used to refer to a time unit, a slot, or a symbol. For example, if the first configuration information indicates that the subcarrier spacing is 15 kHz and the time unit is one or more slots, the time unit is one or more slots corresponding to the 15 kHz subcarrier spacing. Preferably, the configuration period may be the same as the configuration period of the resource type by default. The subcarrier spacing may be the same as the subcarrier spacing corresponding to the resource type configuration by default.

[0197] In all the above embodiments and examples, preferably, the second configuration information further includes resource group configuration parameters, which include at least one of a resource group configuration period, a subcarrier spacing, a time unit offset amount, and a symbol position corresponding to a resource group within a time unit.

[0198] In all the above embodiments and examples, preferably, the third configuration information is: The beam information indication signaling further includes at least one of a Radio Network Temporary Identity (RNTI) used for the beam information indication, a payload size of the indication signaling, a search space set for snooping the indication signaling, a position of a component indication information domain in the indication signaling, a reference subcarrier spacing, a time unit or a time unit list to which the indication signaling applies, where the reference subcarrier spacing is used to refer to a time unit, a slot, or a symbol, and the indication signaling includes signaling carrying the component indication information.

[0199] In all the above embodiments and examples, preferably, the configuration information (including at least one of the first configuration information, the second configuration information, or the third configuration information) further includes at least one of a cell identifier, a carrier configuration, and a Bandwidth Part (BWP) setting.

[0200] The figures in all the above embodiments and examples are all directed to unpaired spectrum, and paired spectrum (i.e., frequency division duplex spectrum) is similar, for example, in the same time domain resource, the configuration information indicates beams corresponding to DL and UL spectrum, or the DL spectrum corresponds to one configuration information and the UL spectrum corresponds to one configuration information.

[0201] Unless otherwise stated, the parameters of the configuration information in all the above embodiments and examples are set independently. For example, when combining Example 1 and Example 2 in the first configuration information, the configuration information is the union of the configuration information of the two examples, and the parameters in the configuration information of each example are set independently. For example, the configuration period in each example may adopt different granularity or may be set to different values. Of course, when combining multiple examples, it is not excluded to integrate the same type of parameters in each example. For example, the granularity and numerical value of the configuration period in Example 1 and Example 2 are the same, that is, the same configuration period parameter is adopted.

[0202] In all the above embodiments and examples, ordinal numbers such as "first," "second," "third," and "fourth" are merely used to distinguish between different parameters. Of course, when combining multiple embodiments and examples, parameters in different embodiments and examples may be unified into one parameter, and in this case, the unified parameter is not distinguished by an ordinal number.

[0203] In all the above embodiments and examples, the configuration information (including at least one of the first configuration information, the second configuration information, and the third configuration information) is carried in at least one signaling. For example, for configuration information that periodically indicates beam information corresponding to a time unit, the configuration information is carried in one signaling. For configuration information including a resource group and beam information corresponding to the resource group, all of the configuration information may be carried in one signaling, or the resource group-related information may be carried in one signaling (e.g., signaling 1) and the beam information corresponding to the resource group may be carried in another signaling (e.g., signaling 2). Signaling 2 may also begin to activate the configuration information as an active signaling. For example, for configuration information including a list of beam information components and component indication information, the list of beam information components may be carried in one signaling and the component indication information may be carried in another signaling. The present application does not impose any restrictions on the signaling that carries the configuration information.

[0204] Unless a frequency domain range is specifically specified, all descriptions in this application refer to one component carrier (CC) or one pair of CCs (e.g., paired spectrum) or one frequency band or one cell or one bandwidth part (BWP), and this application can be extended to multiple CCs or multiple pairs of CCs or multiple frequency bands or multiple cells or multiple BWPs, and all parameters in the configuration information can be set independently for each CC or each pair of CCs or each frequency band or each cell or each BWP.

[0205] In one embodiment, Figure 14 is a structural block diagram of a beam determination device according to an embodiment of the present application. This embodiment is applied to a first communication node. For example, the first communication node is a smart repeater. As shown in Figure 14, this embodiment includes a receiver 1410 and a first determination module 1420.

[0206] The receiver 1410 is configured to receive configuration information transmitted from a second communication node.

[0207] The first determination module 1420 is configured to determine a beam to be used by the first communication node based on the configuration information, where the configuration information includes at least one of first configuration information, second configuration information, and third configuration information.

[0208] In one embodiment, the first configuration information includes beam information corresponding to each time unit in the configuration period.

[0209] In one embodiment, the beam information includes at least one of a DL transmission beam corresponding to a DL symbol, a DL reception beam corresponding to a DL symbol, a UL transmission beam corresponding to a UL symbol, a UL reception beam corresponding to a UL symbol, a beam corresponding to an F symbol, and a transmission beam of the second communication node.

[0210] In one embodiment, for one time unit, the DL transmit beam corresponding to the DL symbol is used to indicate the transmit beam that the first communication node will use on the first link at the DL symbol in the time unit, the UL receive beam that the first communication node will use on the first link at the UL symbol in the time unit, and for one time unit, the beam corresponding to the F symbol is used to indicate at least one of: the DL transmit beam that the first communication node will use on the first link at the F symbol in the time unit, the UL receive beam that the first communication node will use on the first link at the F symbol in the time unit, A DL receiving beam used by the communication node on the second link, a UL transmitting beam used by the first communication node on the second link in F symbols within a time unit, for one time unit, the DL receiving beam corresponding to the DL symbol is used to indicate the receiving beam used by the first communication node on the second link in the DL symbol within the time unit, for one time unit, the UL transmitting beam corresponding to the UL symbol is used to indicate the transmitting beam used by the first communication node on the second link in the UL symbol within the time unit, and for one time unit, the transmitting beam of the second communication node is used to indicate the DL receiving beam and / or UL transmitting beam used by the first communication node on the second link within the time unit.

[0211] In one embodiment, the beam corresponding to the F symbol includes at least one of the first transmitting and receiving beam, the first transmitting and receiving beam and the corresponding first F symbol group, first transmitting and receiving instruction information, the DL transmitting beam and the corresponding second F symbol group, the UL receiving beam and the corresponding third F symbol group, the second transmitting and receiving beam, the second transmitting and receiving beam and the corresponding fourth F symbol group, second transmitting and receiving instruction information, the DL receiving beam and the corresponding fifth F symbol group, the UL transmitting beam and the corresponding sixth F symbol group, the third transmitting and receiving beam, the third transmitting and receiving beam and the corresponding seventh F symbol group, uplink and downlink transmitting and receiving instruction information, the DL transmitting beam, the DL receiving beam and the corresponding eighth F symbol group, and the UL transmitting beam, the UL receiving beam and the corresponding ninth F symbol group.

[0212] In one embodiment, the second configuration information includes a resource group and beam information corresponding to the resource group.

[0213] In one embodiment, one resource group corresponds to one beam information, where the beam information includes at least one of a DL transmission beam, a DL reception beam, a UL transmission beam, a UL reception beam, and a transmission beam of a second communication node.

[0214] In one embodiment, the beam information corresponding to a resource group includes at least one of: one resource group corresponds to one beam information; and all resource groups in one resource set correspond to one beam information.

[0215] In one embodiment, the third configuration information includes at least one of a time unit identifier and corresponding beam information, a beam information component, a list of beam information components, and component indication information, wherein the beam information component indicates beam information corresponding to at least one time unit, the list of beam information components includes at least one beam information component, and the component indication information is used to indicate one component index.

[0216] In one embodiment, each tuple of the beam information component indicates beam information corresponding to one time unit according to resource type or link.

[0217] In one embodiment, beam information corresponding to one time unit is indicated according to a resource type, and the beam information includes at least one of a DL receiving beam, a DL transmitting beam, a UL receiving beam, and a UL receiving beam.

[0218] In one embodiment, beam information corresponding to one time unit is indicated according to the link, and the beam information includes at least one of a beam on a first link of the first communication node, a beam on a second link of the first communication node, and a transmission beam of the second communication node.

[0219] In one embodiment, the third configuration information further includes a time unit identifier of the time unit indicating activation and an offset amount relative to the time unit in which signaling carrying the corresponding beam information, beam information component or component indication information was detected.

[0220] In one embodiment, the configuration information includes first configuration information and second configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the second configuration information, the beam information indicated by the second configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0221] In one embodiment, the configuration information includes first configuration information and third configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the third configuration information, the beam information indicated by the third configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0222] In one embodiment, the DL receiving beam includes a receiving beam on the second link of the first communication node and one of the transmitting beams of the second communication node, the DL transmitting beam includes a transmitting beam on the first link of the first communication node, the UL receiving beam includes a receiving beam on the first link of the first communication node, and the UL transmitting beam includes a transmitting beam on the second link of the first communication node and one of the transmitting beams of the second communication node.

[0223] The beam determination device of this embodiment is configured to realize the beam determination method applied to the first communication node of the embodiment shown in Figure 2, and the realization principle and technical effects of the beam determination device of this embodiment are similar, so the description will be omitted here.

[0224] In one embodiment, Figure 15 is a structural block diagram of another beam determining apparatus according to an embodiment of the present application. This embodiment is applied to a second communication node. For example, the second communication node may include a base station. As shown in Figure 15, the beam determining apparatus in this embodiment includes a second determining module 1510 and a transmitter 1520.

[0225] The second determination module 1510 is configured to determine configuration information, and the transmitter 1520 is configured to transmit the configuration information to the first communication node for the first communication node to determine a beam to be used based on the configuration information, wherein the configuration information includes at least one of first configuration information, second configuration information, and third configuration information.

[0226] In one embodiment, the first configuration information includes beam information corresponding to each time unit in the configuration period, or the first configuration information includes beam information corresponding to a portion of the time unit in the configuration period.

[0227] In one embodiment, the beam information includes at least one of a DL transmission beam corresponding to a DL symbol, a DL reception beam corresponding to a DL symbol, a UL transmission beam corresponding to a UL symbol, a UL reception beam corresponding to a UL symbol, a beam corresponding to an F symbol, and a transmission beam of the second communication node.

[0228] In one embodiment, for one time unit, the DL transmission beam corresponding to the DL symbol is used to indicate the transmission beam to be used by the first communication node in the first link in the DL symbol within the time unit, the UL reception beam corresponding to the UL symbol is used to indicate the reception beam to be used by the first communication node in the first link in the UL symbol within the time unit, and the beam corresponding to the F symbol within the time unit is used to indicate the DL transmission beam to be used by the first communication node in the first link in the F symbol within the time unit, the UL reception beam to be used by the first communication node in the first link in the F symbol within the time unit, and the DL reception beam to be used by the first communication node in the second link in the F symbol within the time unit. In one time unit, the DL receive beam corresponding to the DL symbol is used to indicate the receive beam to be used by the first communication node on the second link in the DL symbol within the time unit, and in one time unit, the UL transmit beam corresponding to the UL symbol is used to indicate the transmit beam to be used by the first communication node on the second link in the UL symbol within the time unit, and in one time unit, the transmit beam of the second communication node is used to indicate the DL receive beam and / or UL transmit beam to be used by the first communication node on the second link in the time unit.

[0229] In one embodiment, the beam corresponding to the F symbol includes at least one of the first transmitting and receiving beam, the first transmitting and receiving beam and the corresponding first F symbol group, first transmitting and receiving instruction information, the DL transmitting beam and the corresponding second F symbol group, the UL receiving beam and the corresponding third F symbol group, the second transmitting and receiving beam, the second transmitting and receiving beam and the corresponding fourth F symbol group, second transmitting and receiving instruction information, the DL receiving beam and the corresponding fifth F symbol group, the UL transmitting beam and the corresponding sixth F symbol group, the third transmitting and receiving beam, the third transmitting and receiving beam and the corresponding seventh F symbol group, uplink and downlink transmitting and receiving instruction information, the DL transmitting beam, the DL receiving beam and the corresponding eighth F symbol group, and the UL transmitting beam, the UL receiving beam and the corresponding ninth F symbol group.

[0230] In one embodiment, the second configuration information includes a resource group and beam information corresponding to the resource group.

[0231] In one embodiment, one resource group corresponds to one beam information, where the beam information includes at least one of a DL transmission beam, a DL reception beam, a UL transmission beam, a UL reception beam, and a transmission beam of a second communication node.

[0232] In one embodiment, the beam information corresponding to a resource group includes at least one of: one resource group corresponds to one beam information; and all resource groups in one resource set correspond to one beam information.

[0233] In one embodiment, the third configuration information includes at least one of a time unit identifier and corresponding beam information, a beam information component, a list of beam information components, and component indication information, wherein the beam information component indicates beam information corresponding to at least one time unit, the list of beam information components includes at least one beam information component, and the component indication information is used to indicate one component index.

[0234] In one embodiment, each tuple of the beam information component indicates beam information corresponding to one time unit according to resource type or link.

[0235] In one embodiment, beam information corresponding to one time unit is indicated according to a resource type, and the beam information includes at least one of a DL receiving beam, a DL transmitting beam, a UL receiving beam, and a UL receiving beam.

[0236] In one embodiment, beam information corresponding to one time unit is indicated according to the link, and the beam information includes at least one of a beam on a first link of the first communication node, a beam on a second link of the first communication node, and a transmission beam of the second communication node.

[0237] In one embodiment, the third configuration information further includes a time unit identifier of the time unit indicating activation and an offset amount relative to the time unit in which signaling carrying the corresponding beam information, beam information component or component indication information was detected.

[0238] In one embodiment, the configuration information includes first configuration information and second configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the second configuration information, the beam information indicated by the second configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0239] In one embodiment, the configuration information includes first configuration information and third configuration information, and when corresponding beam information for the same time resource is simultaneously indicated by the first configuration information and the third configuration information, the beam information indicated by the third configuration information overwrites or modifies the beam information indicated by the first configuration information.

[0240] In one embodiment, the DL receiving beam includes a receiving beam on the second link of the first communication node and one of the transmitting beams of the second communication node, the DL transmitting beam includes a transmitting beam on the first link of the first communication node, the UL receiving beam includes a receiving beam on the first link of the first communication node, and the UL transmitting beam includes a transmitting beam on the second link of the first communication node and one of the transmitting beams of the second communication node.

[0241] The beam determination device of this embodiment is configured to realize the beam determination method applied to the second communication node of the embodiment shown in Figure 3, and the realization principle and technical effects of the beam determination device of this embodiment are similar, so the description will be omitted here.

[0242] In one embodiment, FIG. 16 is a structural diagram of a communication device according to an embodiment of the present application. As shown in FIG. 16, the device according to the present application includes a processor 1610, a memory 1620, and a communication module 1630. The number of processors 1610 in the device may be one or more, and FIG. 16 illustrates one processor 1610 as an example. The number of memories 1620 in the device may be one or more, and FIG. 16 illustrates one memory 1620 as an example. The processor 1610, memory 1620, and communication module 1630 of the device may be connected via a bus or other methods, and FIG. 16 illustrates a bus connection as an example. In this embodiment, the device may be a first communication node. Illustratively, the first communication node may be a smart repeater.

[0243] The memory 1620 may be configured as a computer-readable storage medium to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the apparatus of any embodiment of the present application (e.g., the receiver 1410 and the first determination module 1420 in the beam determination device). The memory 1620 may include a program storage area and a data storage area, where the program storage area can store an operating system and / or application programs required for at least one function, and the data storage area can store data generated based on the use of the apparatus. The memory 1620 may also include high-speed random access memory and may further include non-volatile memory such as at least one magnetic disk storage device, flash memory, or other non-volatile solid-state storage device. In some embodiments, the memory 1620 preferably includes memory located remotely from the processor 1610, and these remote memories can be connected to the apparatus via a network. Examples of such networks may include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0244] The communication module 1630 is configured to conduct a communication interaction between the first communication node and the second communication node.

[0245] When the beam determination device is a first communication node, the device can be configured to perform the beam determination method applied to the first communication node according to any of the above embodiments, and has corresponding functions and effects.

[0246] When the beam determination device is a second communication node, the device can be configured to perform the beam determination method applied to the second communication node according to any of the above embodiments, and has corresponding functions and effects.

[0247] An embodiment of the present application further provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform a beam determination method applied to a first communication node, the method including receiving configuration information transmitted from a second communication node, and determining a beam to be used by the first communication node based on the configuration information, wherein the configuration information includes at least one of first configuration information, second configuration information, and third configuration information.

[0248] An embodiment of the present application further provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to perform a beam determination method applied to a second communication node, the method including determining configuration information and transmitting the configuration information to the first communication node for determination of a beam to be used by the first communication node based on the configuration information, wherein the configuration information includes at least one of first configuration information, second configuration information, and third configuration information.

[0249] Those skilled in the art will appreciate that the term user terminal includes any suitable type of wireless user equipment, including, for example, a mobile phone, a portable data processing device, a portable network browser, or a mobile station mounted on a vehicle.

[0250] In general, various embodiments of the present application may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software executable by a controller, microprocessor, or other computing device, but the present application is not limited thereto. Embodiments of the present application may be implemented by execution of computer program instructions by a data processor of a mobile device, e.g., in the entity of a processor, by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state configuration data, or source code or target code written in any combination of one or more programming languages.

[0251] Any logic flow block diagrams in the figures herein may represent program steps, interconnected logic circuits, modules, and functions, or combinations of program steps and logic circuits, modules, and functions. Computer programs may be stored in memory. The memory may be of any type suitable for the local technology environment and may be implemented with any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical storage devices and systems (Digital Versatile Disc (DVD) or Compact Disc (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable for the local technology environment, such as, but not limited to, a general purpose computer, a special purpose computer, a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), and a processor based on a multi-core processor architecture.

Claims

1. A beam determination method applied to a first communication node, comprising: receiving configuration information transmitted from a second communication node; determining a beam to be used by the first communication node based on the configuration information; the first communication node is a repeater and the second communication node is a base station; The configuration information includes at least one resource set, a resource group, and beam information corresponding to the resource group, the resource set includes at least one of the resource groups, and one of the resource groups corresponds to one of the beam information; The beam is a beam used by the first communication node in a first link between the first communication node and a terminal, and the beam in the beam information is both a transmission beam used by the first communication node in the first link and a reception beam used by the first communication node in the first link. Beam confirmation method.

2. the first communication node performs a receiving and transmitting operation on the first link using the same beam; The beam determination method of claim 1 .

3. the configuration information further includes resource group configuration parameters; The resource group configuration parameters include at least one of a resource group configuration period, a subcarrier interval, a time unit offset amount, and a symbol corresponding to a resource group within a time unit. The beam determination method of claim 1 .

4. A beam determination method applied to a second communication node, determining configuration information; transmitting the configuration information to the first communication node for determining a beam to be used based on the configuration information by the first communication node; the beam is a beam used by the first communication node in a first link between the first communication node and a terminal, The configuration information includes at least one resource set, a resource group, and beam information corresponding to the resource group, the resource set includes at least one of the resource groups, and one of the resource groups corresponds to one of the beam information; a beam in the beam information is a transmission beam used by the first communication node in the first link and a reception beam used by the first communication node in the first link; the first communication node is a repeater and the second communication node is a base station; Beam confirmation method.

5. the configuration information further includes resource group configuration parameters, the resource group configuration parameters including at least one of a resource group configuration period, a subcarrier interval, a time unit offset amount, and a symbol corresponding to a resource group within a time unit; 5. The beam determination method of claim 4.

6. a communication module, a memory, and at least one processor; the communication module is configured to conduct a communication interaction between a first communication node and a second communication node; the memory is configured to store one or more programs; When the one or more programs are executed by the at least one processor, the at least one processor implements the beam determination method of any one of claims 1 to 3. Communication equipment.

7. a communication module, a memory, and at least one processor; the communication module is configured to conduct a communication interaction between a first communication node and a second communication node; the memory is configured to store one or more programs; When the one or more programs are executed by the at least one processor, the at least one processor implements the beam determination method according to claim 4 or 5. Communication equipment.

8. A computer program is stored which, when executed by a processor, implements the beam determination method according to any one of claims 1 to 3. storage medium.

9. A computer program is stored which, when executed by a processor, implements the beam determination method according to claim 4 or 5. storage medium.

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