A wireless communication system beam indication method and device

Abstract

The application discloses a wireless communication system beam indication method and device, and the wireless communication system comprises a network device, an intermediate node device and a user device. First configuration information is configured to a terminal, which is used for indicating reference signal information corresponding to area identification. Second configuration information is configured to an intermediate node, which is used for indicating intermediate node beam information corresponding to the reference signal. The terminal performs measurement and reporting according to the indicated reference signal information. The base station selects optimal beam information according to the measurement and reporting information, and indicates the optimal beam information to the intermediate node through first downlink control signaling for regulation and control. In addition, the optimal beam information is indicated to the terminal through second downlink control signaling, which is used for data transmission and reception of the terminal. The application also comprises a device and a system for implementing the method. The application can reduce signaling overhead by using the characteristic of coverage area.

Description

Technical Field

[0001] This application relates to the field of mobile communication technology, and in particular to a beam indication method and device for a wireless communication system. Background Technology

[0002] Introducing intermediate nodes such as repeaters, smart repeaters, or smart metasurfaces (RIS) into mobile communication NR systems enables beam adjustment to the desired direction, overcoming the limitations of line-of-sight transmission and the impact of coverage holes. However, due to the limited beamwidth adjusted by the intermediate nodes, the coverage area of ​​a single beam direction is limited. Therefore, the base station needs to notify the intermediate nodes of changes in beam adjustment direction and also notify the terminal of the intermediate nodes' beam adjustment direction, enabling the terminal to use the corresponding beam direction for downlink reception and uplink transmission. Summary of the Invention

[0003] This application proposes a beam indication method and device for a wireless communication system, which solves the problem of limited coverage of a single beam under intermediate node forwarding conditions.

[0004] In a first aspect, embodiments of this application provide a beam indication method for a wireless communication system, wherein the wireless communication system includes a network device, an intermediate node device, and a user equipment; the service signal emitted by the network device is transmitted to the user equipment via the intermediate node device.

[0005] The method is used on the network side and includes the following steps:

[0006] Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information;

[0007] Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information;

[0008] Receive signal quality measurement information to determine the actual reference signal in the area where the terminal device is located;

[0009] Send a first downlink control signaling message to indicate the beam information corresponding to the actual reference signal to the intermediate node, and / or send a second downlink control signaling message to indicate the beam information corresponding to the actual reference signal to the terminal device.

[0010] The method is used on the terminal side and includes the following steps:

[0011] Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information;

[0012] Within at least one area indicated by the area identifier, signal quality measurement is performed based on reference signal information configured according to the first configuration information, and signal quality measurement information is transmitted.

[0013] Receive the second downlink control signaling and determine the beam information corresponding to the actual reference signal in the area where the terminal device is located based on the second downlink control signaling.

[0014] The method, used on the intermediate node side, includes the following steps:

[0015] Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information;

[0016] The reference signal information corresponds to the set area identifier;

[0017] The system receives a first downlink control signaling and determines the beam information corresponding to the actual reference signal based on the first downlink control signaling for data transmission with the terminal.

[0018] In any embodiment of the first aspect of this application, preferably, each intermediate node is used for at least one region indicated by the region identifier.

[0019] In any embodiment of the first aspect of this application, preferably, the terminal device determines the area identifier and the corresponding reference signal information based on the working area and the first configuration information.

[0020] In any embodiment of the first aspect of this application, preferably, the reference signal information includes at least one of the following: reference signal resources and reference signal identifiers.

[0021] In any embodiment of the first aspect of this application, preferably, each region corresponds to an RNTI or dedicated time-frequency resource for detecting the first configuration information; the terminal device uses the RNTI or dedicated time-frequency resource corresponding to its region to detect the first configuration information and obtain the reference signal information corresponding to that region.

[0022] In any embodiment of the first aspect of this application, preferably, the terminal device uses a positioning method to determine the area identifier it is located in; the second downlink control signaling includes the beam identifier of the terminal device.

[0023] In any embodiment of the first aspect of this application, preferably, the second downlink control signaling is terminal device-specific signaling or multicast signaling; the second downlink control signaling indicates the area identifier and corresponding beam information of the terminal device.

[0024] More preferably, the second downlink control signaling is multicast signaling, which includes multiple indicator blocks. Each indicator block contains a terminal device identifier for at least one region and corresponding beam information, or each indicator block contains a region identifier for the terminal device and corresponding beam information.

[0025] In any embodiment of the first aspect of this application, preferably, the first downlink control signaling is intermediate node-specific signaling or multicast signaling; the first downlink control signaling indicates the beam information corresponding to the intermediate node.

[0026] More preferably, the first downlink control signaling is multicast signaling, which includes the area identifier of the intermediate node and the beam information corresponding to the area identifier of the intermediate node.

[0027] Secondly, embodiments of this application also propose a communication device for implementing the method described in any one of the embodiments of the first aspect of this application on the network side. At least one module in the communication device is configured to perform at least one of the following functions: determining first configuration information; determining second configuration information; sending the first configuration information; sending the second configuration information; receiving signal quality measurement information; determining the actual reference signal of the area where the terminal device is located; determining the beam information corresponding to the actual reference signal of the area where the terminal device is located; sending a first downlink control signaling; and sending a second downlink control signaling.

[0028] Thirdly, embodiments of this application also propose a communication device for implementing the method described in any one of the embodiments of the first aspect of this application on a terminal side. At least one module in the communication device is configured to perform at least one of the following functions: receiving first configuration information; determining the first configuration information; determining an area identifier and corresponding reference signal information; measuring the signal quality of the reference information within at least one area indicated by the area identifier; transmitting signal quality measurement information; receiving second downlink control signaling; and determining beam information corresponding to the actual reference signal in the area where the terminal device is located.

[0029] Fourthly, embodiments of this application also propose a communication device for implementing the method described in any one of the embodiments of the first aspect of this application at an intermediate node. At least one module in the communication device is configured to perform at least one of the following functions: receiving second configuration information; determining the second configuration information; determining beam information corresponding to the reference signal information; receiving first downlink control signaling; and determining beam information corresponding to the actual reference signal in the area where the terminal device is located, corresponding to a set area identifier.

[0030] Fifthly, this application also proposes a communication device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any embodiment of this application.

[0031] Sixthly, this application also proposes a computer-readable medium on which a computer program is stored, which, when executed by a processor, implements the steps of the method as described in any embodiment of this application.

[0032] Seventhly, this application also proposes a mobile communication system comprising at least one network device as described in any embodiment of this application, and at least one intermediate node as described in any embodiment of this application. Further, it also comprises at least one terminal device as described in any embodiment of this application.

[0033] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0034] This invention designs a regional beam indication method and a reference signal transmission method for use in a mobile communication system with intermediate nodes. The base station configures first configuration information, i.e., reference signal information, to the terminal to indicate the reference signal information corresponding to the area identifier. It also sends second configuration information to the intermediate node, indicating the intermediate node beam information corresponding to the reference signal. The terminal performs measurements and reports according to the indicated reference signal information. Based on the measurement reports, the base station selects the optimal beam information and instructs it to the intermediate node via first downlink control signaling for adjustment. It also instructs the terminal with the optimal beam information via second downlink control signaling for data transmission and reception. By utilizing the regional nature of coverage in the signaling instruction to the terminal, signaling overhead can be significantly reduced.

[0035] On the one hand, it can effectively solve the problem of beam indication within the coverage area. On the other hand, by taking advantage of the regional characteristics of the coverage area, the designed signaling significantly reduces signaling overhead compared to the method of uniformly indicating all beams. It is equivalent to distributing the wide beam within the coverage area to different intermediate nodes to cover terminals in different areas, which can greatly reduce the signaling overhead from the base station to the intermediate nodes and terminals, as well as the overhead of terminal measurement reporting. Attached Figure Description

[0036] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0037] Figure 1 A schematic diagram of a wireless communication system that includes intermediate node devices;

[0038] Figure 2 This is a diagram illustrating a multi-regional application scenario.

[0039] Figure 3 This is a flowchart illustrating an embodiment of the method of this application used in a network device;

[0040] Figure 4 This is a schematic diagram of the first configuration information structure;

[0041] Figure 5 This is a schematic diagram of the second configuration information structure;

[0042] Figure 6 This is a flowchart illustrating an embodiment of the method of this application used in intermediate nodes;

[0043] Figure 7 This is a flowchart illustrating an embodiment of the method of this application used in a terminal device;

[0044] Figure 8 This is a schematic diagram of an embodiment of a network device;

[0045] Figure 9 This is a schematic diagram of an embodiment of an intermediate node;

[0046] Figure 10 This is a schematic diagram of an embodiment of the terminal device;

[0047] Figure 11 This is a schematic diagram of the network device of the present invention;

[0048] Figure 12 This is a block diagram of the intermediate node of the present invention;

[0049] Figure 13 This is a block diagram of the terminal device of the present invention. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0052] Figure 1This is a schematic diagram of a wireless communication system including intermediate node devices. It should be noted that the intermediate node in this application uses methods such as reflection or refraction to control the waveform parameters of electromagnetic waves propagating in the communication channel to improve the performance of the communication system, and is not limited to the use of smart metasurface technology.

[0053] After introducing intermediate nodes such as repeaters, smart repeaters, and smart metasurfaces into mobile communication NR systems, these intermediate nodes can perform beam management and switching functions. A control link exists between network devices and intermediate nodes to control the beam direction of the intermediate nodes. A backhaul link also exists between network devices and intermediate nodes to send back signals to the intermediate nodes, which are then forwarded to the terminal devices. After the network device sends control information to the intermediate node via the control link, the intermediate node receives the control information and performs beam switching.

[0054] Considering the limited coverage area of ​​intermediate nodes over coverage holes, the intermediate nodes can be divided into blocks, each covering a different coverage area. Different beam indicators from the intermediate nodes in different coverage areas are applied to terminals, ensuring that terminals in all coverage areas can receive the beam from the intermediate nodes for data transmission and reception, reducing signaling overhead. This method is suitable for scenarios using RIS for wide-beam coverage. For example, Figure 2 This is a multi-region application scenario diagram, where the multiple coverage areas, such as areas 1 to 4, correspond to four areas within the base station's coverage area. Each area has a different optimal beam direction. When the RIS (Smart Metasurface) is divided into multiple blocks, each RIS block can be set as an intermediate node. Correspondingly, each RIS block contains at least one beam direction.

[0055] This application provides a method and apparatus for beam indication in a wireless communication system. The wireless communication system includes a network device, an intermediate node device, and a user equipment. Service signals emitted by the network device are transmitted to the user equipment via the intermediate node device. A terminal receives first configuration information, which indicates an area identifier and a reference signal resource or reference signal identifier within the area corresponding to the area identifier. The intermediate node receives the reference signal resource and also receives second configuration information, which indicates beam information or beam identifier information corresponding to the reference signal resource or reference signal identifier in the area identifier. This second configuration information is used by the intermediate node to adjust the beam from the base station according to the beam information or beam identifier information.

[0056] The terminal performs measurements such as signal quality information based on the reference signal information configured in the first configuration information and reports it to the base station. The base station sends a first downlink control signaling to the intermediate node based on the measurement information reported by the terminal. The intermediate node determines the modulation beam information of the intermediate node based on the first downlink control signaling for data transmission with the terminal.

[0057] The terminal obtains beam information based on the second downlink control signaling, which is used for data transmission and reception.

[0058] The intermediate node receives a first downlink control signaling, which is used to indicate the beam or beam identification information corresponding to the intermediate node.

[0059] The first downlink control signaling is intermediate node-specific signaling, used to indicate the beam or beam identifier information corresponding to the intermediate node. Alternatively, the first downlink control signaling is multicast signaling, used to indicate the area identifier of the intermediate node and the corresponding beam or beam identifier information.

[0060] The terminal receives a second downlink control signaling, which is used to indicate the terminal's area identifier and the corresponding beam or beam identifier information.

[0061] The second downlink control signaling is terminal-specific signaling, used to indicate the terminal's area identifier and the corresponding beam or beam identifier information. Alternatively, the second downlink control signaling is multicast signaling, used to indicate the terminal's area identifier and the corresponding beam or beam identifier information.

[0062] Preferably, the terminal device uses geographic location information to detect and receive the first configuration information and / or the second downlink control signaling.

[0063] Figure 3 This is a flowchart illustrating an embodiment of the method of this application used in a network device.

[0064] The method of the first aspect of this application is used in a network device and includes the following steps 201-204:

[0065] Step 201: Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information.

[0066] Preferably, the reference signal information includes at least one of the following: reference signal resources and reference signal identifiers.

[0067] Figure 4 The diagram below shows the structure of the first configuration information. The content of the first configuration information is indicated as shown in the figure below. It is used to indicate the reference signal resources or reference signal identifiers corresponding to each area from the base station.

[0068] There are two methods for sending the first configuration information: The first method involves the first configuration information containing the beam identifiers of each area within the base station's coverage cell, which is simultaneously sent to terminals in each area via a higher-layer signaling. For example, the base station sends RRC, MAC layer signaling, or physical layer signaling indicating the following information:

[0069] Zone 1: {RS 1, RS2, RS3, ..., RS N}, where RS n (n = 1, ..., N) represents a reference signal resource or a reference signal resource identifier in Zone 1;

[0070] Zone 2: {RS 1, RS2, RS3, ..., RS N}, where RS n (n = 1, ..., N) represents a reference signal resource or a reference signal resource identifier in Zone 2;

[0071] ...;

[0072] Zone M: {RS1, RS2, RS3, ..., RSN}, where RSn (n = 1, ..., N) represents the reference signal resource or reference signal resource identifier in zone M.

[0073] The second method is that each region corresponds to an RNTI or time-frequency resource for detecting the first configuration information. The first configuration information detected by the terminal using the RNTI or time-frequency resource corresponding to its region contains the beam information corresponding to that region.

[0074] For example, within the coverage area of ​​a fixed base station, there are M zones. The zone identifiers (RNTIs) for detecting the first configuration information are RNTI_zone1, RNTI_zone2, and RNTI_zone3, or the resource distribution for detecting the first configuration information is resource1, resource2, and resource3. A UE in zone 1 uses RNTI_zone1 or resource1 to detect that the first configuration information contains only the reference signal configuration information corresponding to zone 1. A UE in zone 2 uses RNTI_zone2 or resource2 to detect that the first configuration information contains only the reference signal configuration information corresponding to zone 2. A UE in zone 3 uses RNTI_zone3 or resource3 to detect that the first configuration information contains only the reference signal configuration information corresponding to zone 3. The terminal detects the downlink control information scrambled by RNTI_zone identifiers 1 to 4 to obtain the reference signal information containing the zone identifiers 1 to 4.

[0075] Step 202: Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information.

[0076] Figure 5 The diagram below illustrates the structure of the second configuration information, and the content indicated by the second configuration information is shown in the figure below.

[0077] For example, the base station instructs the terminal on reference signal resource information for four coverage areas. The intermediate node 1, after being divided into blocks, corresponds to the coverage area of ​​area 1. It will receive the reference signal resource information {RS1, RS2, RS3, RS4} of area 1 and receive the first downlink control signaling from the base station, indicating the beam-adjusted beam information or beam identifier {beam1, beam2, beam3, beam4} corresponding to the reference signal resource information. The intermediate node 2, after being divided into blocks, corresponds to the coverage area of ​​area 2. It will receive the reference signal resource information {RS1, RS2, RS3, RS4} of area 2 and receive the second configuration information from the base station, indicating the beam-adjusted beam information or beam identifier {beam1, beam2, beam3, beam4} corresponding to the reference signal resource information. And so on, thus achieving coverage of the four coverage areas.

[0078] The second configuration information is for RRC signaling / MAC layer signaling configuration and can be indicated in two ways:

[0079] Method 1: Dedicated signaling configuration for intermediate nodes, indicating the corresponding reference signal resources and control beam information to each intermediate node.

[0080] Method 2: Common signaling is sent to all intermediate nodes. For example, the base station sends RRC or MAC layer signaling indicating the following information:

[0081] Intermediate node 1: {RS 1: beam1, RS2: beam2, ..., RS N: beamN}, where RS n (n = 1, ..., N) represents the reference signal resource or reference signal resource identifier in region 1, and beam n represents the modulated beam information of the corresponding reference signal resource;

[0082] Intermediate node 2: {RS 1: beam1, RS2: beam 2, ..., RS N: beam N}, where beam n (n = 1, ..., N) represents the reference signal resource or reference signal resource identifier in region 2, and beam n represents the adjustment beam information of the corresponding reference signal resource;

[0083] ...;

[0084] Intermediate node M: {RS 1: beam1, RS2: beam2, ..., RS N: beamN}, where beam n (n = 1, ..., N) represents the reference signal resource or reference signal resource identifier in region M, and beam n represents the adjustment beam information of the corresponding reference signal resource.

[0085] Step 203: Receive signal quality measurement information and determine the actual reference signal in the area where the terminal device is located.

[0086] The signal quality measurement information comes from the terminal equipment.

[0087] Step 204: Send a first downlink control signaling to indicate the beam information corresponding to the actual reference signal to the intermediate node, and / or send a second downlink control signaling to indicate the beam information corresponding to the actual reference signal in the area where the terminal device is located to the terminal device.

[0088] The first downlink control signaling can be intermediate node-specific signaling or multicast signaling. The first downlink control signaling can be intermediate node-specific information, using downlink control signaling scrambled with the intermediate node's identifier RIS_RNTI to indicate the control beam information corresponding to the reference signal resource. Alternatively, the first downlink control signaling can be multicast information, using block information scrambled with a common RNTI (RS_RNTI), with each block indicating the control beam information for each intermediate node. The start position and length of each block are configured by higher-layer signaling.

[0089] The second downlink control signaling is terminal-specific signaling or multicast signaling. If the second downlink control signaling is terminal-specific, it includes the beam identifier of the terminal device. Alternatively, the second downlink control signaling is multicast signaling, including multiple indicator blocks. Each indicator block includes the terminal device identifier for at least one region and corresponding beam information; or, each indicator block includes the identifier of at least one region where the terminal device is located and corresponding beam information.

[0090] Figure 6 This is a flowchart illustrating an embodiment of the method of this application used for intermediate nodes.

[0091] The method of the first aspect of this application, used for intermediate nodes, includes the following steps:

[0092] Step 301: Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information.

[0093] Preferably, the reference signal information includes at least one of the following: reference signal resources and reference signal identifiers.

[0094] The reference signal information corresponds to a set area identifier; preferably, each intermediate node is used for at least one area indicated by the area identifier.

[0095] The intermediate nodes receive reference signal resources or reference signal identifiers for the corresponding regions, and receive second configuration information from the base station, instructing the intermediate nodes to perform beam modulation on the reference signal resources according to the beam information and the beam from the base station.

[0096] Step 302: Receive the first downlink control signaling, and determine the beam information corresponding to the actual reference signal in the area where the terminal device is located based on the first downlink control signaling, for data transmission with the terminal.

[0097] Preferably, the first downlink control signaling indicates the beam information corresponding to the intermediate node.

[0098] More preferably, the first downlink control signaling is multicast signaling, which includes the area identifier of the intermediate node and the beam information corresponding to the area identifier of the intermediate node.

[0099] Step 303: Forward downlink service data to the terminal device and receive uplink service data from the terminal device through the beam indicated by the first downlink control signaling.

[0100] Figure 7 This is a flowchart of an embodiment of the method of this application used in a terminal device.

[0101] The method of the first aspect of this application, used in a terminal device, includes the following steps:

[0102] Step 401: Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information.

[0103] In this step, the terminal receives first configuration information, which is used to indicate the receiving area identifier for the area and the reference signal resources or reference signal identifiers within the area corresponding to the area identifier.

[0104] Preferably, the reference signal information includes at least one of the following: reference signal resources and reference signal identifiers.

[0105] Preferably, each region corresponds to an RNTI or dedicated time-frequency resource for detecting the first configuration information; the terminal device uses the RNTI or dedicated video resource corresponding to its region to detect the first configuration information and obtain the reference signal information corresponding to that region.

[0106] Step 402: Within at least one area indicated by the area identifier, perform signal quality measurement according to the reference signal information configured by the first configuration information, and send signal quality measurement information.

[0107] Preferably, the terminal device determines the area identifier and corresponding reference signal information based on the working area and the first configuration information.

[0108] Step 403: Receive the second downlink control signaling and determine the beam information corresponding to the actual reference signal in the area where the terminal device is located based on the second downlink control signaling.

[0109] Preferably, the terminal device uses a positioning method to determine its location area identifier; the second downlink control signaling includes the beam identifier of the terminal device. Specifically, a terminal with positioning capabilities can directly use the RNTI of its location area for downlink control channel detection based on geographical location information, reducing power loss in the detection channel.

[0110] Alternatively, the second downlink control signaling indicates the area identifier and corresponding beam information of the terminal device.

[0111] The second downlink control signaling is multicast signaling, and there are two ways to indicate it: The first way is that the second downlink control signaling contains multiple indicator blocks. Each indicator block contains the terminal ID and the corresponding beam ID of each region. The starting position of the corresponding indicator information for each region in the indicator block is given by the higher layer configuration information.

[0112] Specifically, terminals with positioning capabilities only need to detect the indicator block information of their geographical location to obtain their own beam information or beam identification information.

[0113] The second approach involves multiple indication blocks in the second downlink control signaling. Each indication block contains the region ID and corresponding beam ID of each terminal. The starting position of the indication information for each region is given by higher-layer configuration information. Specifically, terminals with positioning capabilities only need to indicate the corresponding beam ID, and the terminal determines its region ID based on its geographic location information.

[0114] The terminal obtains beam information based on the second downlink control signaling, which is used for data transmission and reception.

[0115] Step 404: Send uplink service data to the intermediate node device and receive downlink service data forwarded by the intermediate device through the beam indicated by the second downlink control signaling.

[0116] Figure 8 This is a schematic diagram of a network device embodiment. This application also proposes a communication device (i.e., a network device) using the method of any embodiment of this application. At least one module in the network device performs at least one of the following functions: determining first configuration information; determining second configuration information; sending the first configuration information; sending the second configuration information; receiving signal quality measurement information; determining the actual reference signal of the area where the terminal device is located; determining the beam information corresponding to the actual reference signal of the area where the terminal device is located; sending a first downlink control signaling; and sending a second downlink control signaling.

[0117] To implement the above technical solution, this application proposes a communication device 500, which includes a network transmitting module 501, a network determining module 502, and a network receiving module 503.

[0118] The network transmission module is used to transmit first configuration information and / or second configuration information, and is also used to transmit first downlink control signaling and / or second downlink control signaling.

[0119] The network determination module is used to determine first configuration information and / or second configuration information; determine the actual reference signal of the area where the terminal device is located; and determine the beam information corresponding to the actual reference signal of the area where the terminal device is located.

[0120] The network receiving module is used to receive signal quality measurement information.

[0121] Other specific methods for implementing the functions of the network sending module, network determining module, and network receiving module are described in the various method embodiments of this application, and will not be repeated here.

[0122] The network equipment described in this application may be a base station device or a network-side processing device connected to a base station.

[0123] Figure 9 This is a schematic diagram of an embodiment of an intermediate node. This application also proposes a communication device (i.e., an intermediate node) using the method of any embodiment of this application, wherein at least one module in the intermediate node is configured to perform at least one of the following functions: receiving second configuration information; determining the second configuration information; determining beam information corresponding to the reference signal information; receiving first downlink control signaling; and determining beam information corresponding to the actual reference signal of the area where the terminal device is located, corresponding to a set area identifier.

[0124] To implement the above technical solution, this application proposes a communication device 600 for controlling a reflection unit (e.g., a smart metasurface 604) or other phase conversion device, which includes an intermediate transmitting module 601, an intermediate determining module 602, and an intermediate receiving module 603.

[0125] The intermediate receiving module is used to receive second configuration information, to receive the first downlink control signaling, and to receive uplink service data from the terminal device through the beam indicated by the first downlink control signaling.

[0126] The intermediate determination module is used to determine the second configuration information; determine the beam information corresponding to the reference signal information; and determine the beam information corresponding to the actual reference signal of the area where the terminal device is located, corresponding to the set area identifier.

[0127] The intermediate transmission module is used to forward downlink service data to the terminal device through the beam indicated by the first downlink control signaling.

[0128] The intermediate node mentioned in this application may refer to a mobile terminal or other device specifically used to control the reflection unit or other phase conversion device connected to the reflection unit or other phase conversion device.

[0129] Figure 10 This is a schematic diagram of an embodiment of a terminal device. This application also proposes a communication device (i.e., a terminal device) using the method of any embodiment of this application. At least one module in the terminal device is configured to perform at least one of the following functions: receiving first configuration information; determining the first configuration information; determining an area identifier and corresponding reference signal information; measuring the signal quality of the reference information within at least one area indicated by the area identifier; transmitting signal quality measurement information; receiving second downlink control signaling; and determining the beam information corresponding to the actual reference signal in the area where the terminal device is located.

[0130] To implement the above technical solution, this application proposes a communication device 700, which includes a terminal transmitting module 701, a terminal determining module 702, and a terminal receiving module 703.

[0131] The terminal receiving module is used to receive first configuration information and second downlink control signaling; it is also used to receive downlink service data forwarded from intermediate node devices through the beam indicated by the second downlink control signaling.

[0132] The terminal determination module is used to determine the first configuration information, determine the area identifier and the corresponding reference signal information, and determine the beam information corresponding to the actual reference signal of the area where the terminal device is located according to the second downlink control signaling.

[0133] The terminal transmitting module is used to transmit signal quality measurement information; it is also used to transmit uplink service data to the intermediate node device through the beam indicated by the second downlink control signaling.

[0134] The terminal device described in this application may be a mobile terminal device.

[0135] Figure 11A schematic diagram of the network device of the present invention is shown. As shown, the network device 800 includes a processor 801, a wireless interface 802, and a memory 803. The wireless interface may consist of multiple components, including a transmitter and a receiver, providing a unit for communication with various other devices over a transmission medium. The wireless interface implements communication functions with the intermediate node, processes wireless signals through receiving and transmitting devices, and the data carried by the signals is communicated with the memory or processor via an internal bus structure. The memory 803 contains a computer program that executes any embodiment of the network device or terminal device described in this application, and the computer program runs or is modified by the processor 801. The memory, processor, and wireless interface circuitry are connected via a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be described in detail here.

[0136] Figure 12 This is a block diagram of an intermediate node according to another embodiment of the present invention. The intermediate node 900 includes at least one processor 901, a memory 902, a network interface 903, and at least one control interface 904. The various components in the intermediate node 900 are coupled together via a bus system. The bus system is used to enable communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0137] The control interface 904 is used to connect the phase transformation device (e.g., metasurface device) of the intermediate node, convert the multiple sets of control parameters into driving signals for each surface unit, and realize the adjustment of the reflection (or refraction) signal of the intermediate node.

[0138] Figure 13 This is a block diagram of the terminal device of the present invention.

[0139] Terminal device A00 includes at least one processor A01, memory A02, user interface A03, and at least one network interface A04. The various components in terminal device A00 are coupled together via a bus system. The bus system is used to enable communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

[0140] User interface A03 may include a display, keyboard, or clicking device, such as a mouse, trackball, touchpad, or touchscreen.

[0141] Memory 902 and A02 store executable modules or data structures. The memory can store the operating system and application programs. The operating system includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. Application programs include various applications, such as media players and browsers, used to implement various application functions.

[0142] In an embodiment of the present invention, the memory 902 contains a computer program that executes any embodiment of the present application relating to an intermediate node, or the memory A02 contains a computer program that executes any embodiment of the present application relating to a terminal device, the computer program being run on or modified by the processor 901, A01.

[0143] The memory 902, A02 includes a computer-readable storage medium. The processor 901, A01 reads the information in the memory 902, A02 and, in conjunction with its hardware, completes the steps of the above method. Specifically, the computer-readable storage medium stores a computer program, which, when executed by the processor 901, A01, implements the steps of the method embodiment as described in any of the above embodiments.

[0144] Processor 901, A01 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the method in this application can be completed by the integrated logic circuitry in the hardware of processor 901, A01 or by instructions in software form. The processor 901, A01 can be a general-purpose processor, digital signal processor, application-specific integrated circuit, off-the-shelf programmable gate array or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor.

[0145] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, the device of this application includes one or more processors (CPUs), an input / output user interface, a network interface, and memory.

[0146] Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0147] Therefore, this application also proposes a computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the method described in any embodiment of this application. For example, the memory 803, 902, A02 of the present invention may include non-permanent memory in the form of computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM.

[0148] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0149] Based on the above embodiments, this application also proposes a mobile communication system, including at least one embodiment of any intermediate node as described in this application and / or at least one embodiment of any network device as described in this application. Further, the mobile communication system also includes at least one embodiment of any terminal device as described in this application.

[0150] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0151] It should also be noted that the terms "first" and "second" in this application are used to distinguish multiple objects with the same name, and are not used to limit the order or size.

[0152] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A beam indication method for a wireless communication system, wherein the wireless communication system includes a network device, an intermediate node device, and a terminal device; a service signal emitted by the network device is transmitted to the terminal device via the intermediate node device, and the method is used in the network device, characterized in that... Includes the following steps: Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information; Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information; Receive signal quality measurement information to determine the actual reference signal in the area where the terminal device is located; Send a first downlink control signaling message to indicate the beam information corresponding to the actual reference signal to the intermediate node, and / or send a second downlink control signaling message to indicate the beam information corresponding to the actual reference signal to the terminal device.

2. A beam indication method for a wireless communication system, wherein the wireless communication system includes a network device, an intermediate node device, and a terminal device; a service signal emitted by the network device is transmitted to the terminal device via the intermediate node device, and the method is used in the terminal device, characterized in that... Includes the following steps: Determine the first configuration information, which is used to indicate the area identifier and the corresponding reference signal information; Within at least one area indicated by the area identifier, signal quality measurement is performed based on reference signal information configured according to the first configuration information, and signal quality measurement information is transmitted. Receive the second downlink control signaling and determine the beam information corresponding to the actual reference signal in the area where the terminal device is located based on the second downlink control signaling.

3. The beam indication method for a wireless communication system as described in claim 2, characterized in that, The terminal device determines the area identifier and corresponding reference signal information based on the working area and the first configuration information.

4. The beam indication method for a wireless communication system as described in claim 2, characterized in that, Each region corresponds to an RNTI or dedicated time-frequency resource for detecting the first configuration information; the terminal device uses the RNTI or dedicated time-frequency resource corresponding to its region to detect the first configuration information and obtain the reference signal information corresponding to that region.

5. The beam indication method for a wireless communication system as described in claim 1 or 2, characterized in that, The terminal device uses a positioning method to determine its location area identifier; the second downlink control signaling includes the beam identifier of the terminal device.

6. The beam indication method for a wireless communication system as described in claim 1 or 2, characterized in that, The second downlink control signaling is terminal device-specific signaling or multicast signaling; the second downlink control signaling indicates the area identifier and corresponding beam information of the terminal device.

7. The beam indication method for a wireless communication system as described in claim 6, characterized in that, The second downlink control signaling is multicast signaling, which contains multiple indicator blocks. Each indicator block contains the terminal device identifier of at least one region and the corresponding beam information.

8. The beam indication method for a wireless communication system as described in claim 6, characterized in that, The second downlink control signaling is multicast signaling, which includes multiple indicator blocks. Each indicator block contains at least one area identifier and corresponding beam information of the terminal device.

9. A beam indication method for a wireless communication system, the wireless communication system comprising a network device, an intermediate node device, and a terminal device; a service signal emitted by the network device is transmitted to the terminal device via the intermediate node device, the method being used in the intermediate node device, characterized in that, Includes the following steps: Determine the second configuration information, which is used to indicate the beam information corresponding to the reference signal information; The reference signal information corresponds to the set area identifier; The system receives a first downlink control signaling and determines the beam information corresponding to the actual reference signal based on the first downlink control signaling for data transmission with the terminal.

10. The beam indication method for a wireless communication system as described in any one of claims 1 to 2 and 9, characterized in that: Each intermediate node is used for at least one region indicated by the region identifier.

11. The beam indication method for a wireless communication system as described in any one of claims 1 to 2 and 9, characterized in that, The reference signal information includes at least one of the following: reference signal resources and reference signal identifier.

12. The beam indication method for a wireless communication system as described in claim 1 or 9, characterized in that, The first downlink control signaling is either intermediate node-specific signaling or multicast signaling; the first downlink control signaling indicates the beam information corresponding to the intermediate node.

13. The beam indication method for a wireless communication system as described in claim 12, characterized in that, The first downlink control signaling is multicast signaling, which includes the area identifier of the intermediate node and the beam information corresponding to the area identifier of the intermediate node.

14. A communication device for implementing the method according to any one of claims 1 to 13 on the network side, characterized in that, At least one module in the communication device is configured to perform at least one of the following functions: determining the first configuration information; determining the second configuration information; sending the first configuration information; sending the second configuration information; receiving signal quality measurement information; and determining the actual reference signal in the area where the terminal device is located. Determine the beam information corresponding to the actual reference signal in the area where the terminal device is located; send the first downlink control signaling; Send the second downlink control signaling.

15. A communication device for implementing the method according to any one of claims 1 to 13 on a terminal side, characterized in that, At least one module in the communication device is configured to perform at least one of the following functions: receiving first configuration information; determining the first configuration information; determining an area identifier and corresponding reference signal information; measuring the signal quality of the reference signal within at least one area indicated by the area identifier; sending signal quality measurement information; receiving second downlink control signaling; and determining the beam information corresponding to the actual reference signal in the area where the terminal device is located.

16. A communication device for implementing the method of any one of claims 1 to 13 at an intermediate node, characterized in that, At least one module in the communication device is configured to perform at least one of the following functions: receiving second configuration information; determining the second configuration information; determining the beam information corresponding to the reference signal information; receiving first downlink control signaling; and determining the beam information corresponding to the actual reference signal of the area where the terminal device is located, corresponding to a set area identifier.

17. A communication device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 13.

18. A computer-readable medium storing a computer program that, when executed by a processor, implements the steps of the method as claimed in any one of claims 1 to 13.

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