Communication method and device, storage medium and program product

Abstract

The embodiment of the invention provides a communication method and device, a storage medium and a program product, relates to the technical field of communication, and aims to identify a user terminal under each NCR and realize effective management of a base station on the user terminals under the NCR. The method also comprises the following steps: receiving first identifiers sent by the plurality of NCRs and second identifiers sent by the plurality of target terminals, and determining that the first terminal is connected with the base station through the first NCR under the condition that the first identifier sent by the first NCR is consistent with the second identifier sent by the first terminal. Wherein one target terminal is connected with the base station through one NCR, and the plurality of NCRs comprise the first NCR. The plurality of target terminals comprise the first terminal.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to communication methods, devices, storage media and program products. Background Art

[0002] At present, the base station cannot accurately identify the user equipment (UE) working under each network controlled repeater (NCR), which makes it impossible for the base station to effectively manage the UE under the NCR. When there is frequency overlap or signal interference between the UE under the NCR and the UE under the base station side, it is difficult for the base station to effectively manage it, which in turn affects the performance and stability of the wireless communication network. Summary of the invention

[0003] The present application provides a communication method, an apparatus, a storage medium and a program product, which can realize effective management of UEs under NCR by a base station, thereby avoiding interference between UEs under the base station side and UEs under NCR.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, the present application provides a communication method, applied to a base station, the method comprising:

[0006] The first identifiers sent by multiple NCRs and the second identifiers sent by multiple target terminals are received, and when the first identifier sent by the first NCR and the second identifier sent by the first terminal are consistent, it is determined that the first terminal is connected to the base station through the first NCR.

[0007] Wherein, one target terminal is connected to the base station via one NCR, the multiple NCRs include the first NCR, and the multiple target terminals include the first terminal.

[0008] Based on the above technical solution, the base station can compare the first identifiers sent by multiple NCRs with the second identifiers sent by multiple target terminals, and when the first identifier sent by any NCR is consistent with the second identifier sent by any target terminal, it is determined that the target terminal accesses the base station through the NCR. In this way, the base station can accurately identify the UE under each NCR, thereby effectively managing the UE under the NCR.

[0009] Optionally, the first identifier and the second identifier include any one of a synchronization signal block (synchronization signal block, SSB) beam identifier or a reference signal (channel state information-reference signal, CSI-RS) resource indicator (CSI-RS resource indicator, CRI).

[0010] The reference signal is sent by the base station.

[0011] Optionally, the target terminal can be determined in the following manner: for each terminal, a first delay is determined based on the distance between the base station and the terminal, and when the difference between the first delay and the second delay is greater than a delay threshold, the terminal is determined as the target terminal.

[0012] The second delay is determined based on the time when the base station sends the first signal to the terminal and the time when the base station receives the second signal sent by the terminal in response to the first signal.

[0013] Optionally, before determining the first delay based on the distance between the base station and the terminal, the base station may also determine the path loss of the first signal during transmission, and then determine the distance between the base station and the terminal based on the path loss.

[0014] Optionally, the above-mentioned determination of the path loss of the first signal during the transmission process may specifically include: obtaining the transmission power of the first signal sent to the terminal, and the receiving power of the first signal received by the terminal, and then determining the path loss of the first signal during the transmission process based on the transmission power and the receiving power.

[0015] Optionally, the target terminal can be determined in the following manner: for each terminal, a third signal is sent to the terminal, and a first reference signal received power (RSRP) sent by the terminal in response to the third signal is received; then a status instruction is sent to each NCR; then a fourth signal is sent to the terminal, and a second RSRP sent by the terminal in response to the fourth signal is received; finally, when the difference between the first RSRP and the second RSRP is greater than an RSRP threshold, the terminal is determined as the target terminal.

[0016] The status instruction is used to instruct each NCR to switch its working status.

[0017] Optionally, the working state of the NCR may include either an active state or a closed state.

[0018] In a second aspect, the present application provides a communication device, including:

[0019] The transceiver unit is used to receive first identifiers sent by multiple NCRs and second identifiers sent by multiple target terminals.

[0020] The determining unit is used to determine that the first terminal is connected to the base station through the first NCR when the first identifier sent by the first NCR is consistent with the second identifier sent by the first terminal.

[0021] Optionally, the determination unit is further used to determine, for each terminal, a first delay based on the distance between the base station and the terminal, and determine the terminal as a target terminal when a difference between the first delay and the second delay is greater than a delay threshold.

[0022] The second delay is determined based on the time when the base station sends the first signal to the terminal and the time when the base station receives the second signal sent by the terminal in response to the first signal.

[0023] Optionally, the determination unit is further used to determine a path loss of the first signal during transmission, and then determine a distance between the base station and the terminal based on the path loss.

[0024] Optionally, the determination unit is further used to obtain the transmission power of the first signal sent to the terminal and the reception power of the first signal received by the terminal, and then determine the path loss of the first signal during the transmission process based on the transmission power and the reception power.

[0025] Optionally, the transceiver unit is further used to send a third signal to each terminal, and receive a first RSRP sent by the terminal in response to the third signal.

[0026] Optionally, the transceiver unit is further used to send a status instruction to each NCR, wherein the status instruction is used to instruct each NCR to switch the working state.

[0027] Optionally, the transceiver unit is further used to send a fourth signal to each terminal, and receive a second RSRP sent by the terminal in response to the fourth signal.

[0028] Optionally, the determination unit is further configured to, when a difference between the first RSRP and the second RSRP is greater than an RSRP threshold, determine the terminal as a target terminal.

[0029] In a third aspect, the present application provides a communication device, comprising: a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement a communication method as described in any one of the first aspect and any possible implementation of the first aspect.

[0030] In a fourth aspect, the present application provides a computer-readable storage medium, which stores instructions. When the instructions are executed on a terminal, the terminal executes a communication method as described in any one of the first aspect and any possible implementation of the first aspect.

[0031] In a fifth aspect, the present application provides a computer program product, which includes computer instructions. When the computer instructions are executed on a computer, the computer executes a communication method as described in any one of the first aspect and any possible implementation of the first aspect.

[0032] It can be understood that the beneficial effects that can be achieved by the second to fifth aspects provided above can refer to the beneficial effects in any possible design method of the communication method described in any one of the first aspect and any possible implementation method of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of an NCR provided in an embodiment of the present application;

[0034] Figure 2 An architecture diagram of a communication system provided in an embodiment of the present application;

[0035] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0036] Figure 4 A flowchart of another communication method provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of communication between a base station and a terminal provided in an embodiment of the present application;

[0038] Figure 6 A flowchart of another communication method provided in an embodiment of the present application;

[0039] Figure 7 An interactive flow chart of a communication method provided in an embodiment of the present application;

[0040] Figure 8 An interactive flow chart of another communication method provided in an embodiment of the present application;

[0041] Fig. 9 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0042] Fig.10 A schematic diagram of the structure of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] A communication method and device provided in an embodiment of the present application are described in detail below with reference to the accompanying drawings.

[0044] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0045] The terms "first" and "second" and the like in the specification and drawings of this application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of objects.

[0046] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0047] It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0048] The following is an explanation of some terms in the embodiments of the present disclosure to facilitate understanding by those skilled in the art:

[0049] (1) NCR, a repeater based on the concept of amplification and forwarding, can also be called an intelligent repeater. NCR has the ability to obtain a variety of effective control information, such as timing information, spatial beam information, bandwidth information, and switch information, and can also realize uplink and downlink perception, dynamic time division (TDD), bandwidth configurability, beam perception, access side beamforming (BF), uplink / uplink (DL / UL) forwarding power control, and dynamic switching functions.

[0050] The structure of NCR is as follows Figure 1As shown, it includes two functional entities: NCR mobile termination (NCR mobile termination, NCR-MT) and NCR forwarding (NCR forwarding, NCR-FWD). Among them, NCR-MT and NCR-FWD can be connected through an internal interface. In addition, NCR-MT can exchange control information with the base station through a control link (control link, C-link), and the control information is used to control NCR-FWD. NCR-FWD amplifies and forwards uplink and downlink radio frequency signals between the base station and the UE through a backhaul link (backhaul link, B-link) and an access link (access link, A-link). Specifically, the base station can send side control information (side-link control information, SCI) to NCR-FWD to NCR-MT. After receiving the SCI, NCR-MT can control NCR-FWD to perform corresponding operations.

[0051] It should be noted that the repeater in the embodiment of the present application can also be called a repeater, and the two can be interchangeable.

[0052] In the field of wireless communications, network coverage is crucial to meeting the growing communication needs of users. As an important part of the traditional wireless communication system, repeaters play an important role in expanding network coverage with their advantages of low cost and low technical complexity. By receiving and amplifying signals from base stations, repeaters effectively enhance the coverage strength of signals in remote areas or inside buildings where signals are difficult to penetrate, providing users with more stable and reliable communication services.

[0053] A repeater is usually composed of antennas, RF duplexers, low noise amplifiers, mixers, electrically adjustable attenuators, filters, power amplifiers and other components or modules. The basic working principle of a repeater is: the downlink signal from the base station is received through the forward antenna, the useful signal is amplified and the noise is suppressed through the low noise amplifier, and the signal-to-noise ratio is improved. After that, the signal is down-converted to the intermediate frequency, filtered and amplified by the filter, and then up-converted to the radio frequency, and then amplified by the power amplifier and transmitted to the UE by the backward antenna. At the same time, the repeater can also use the backward antenna to receive the uplink signal from the UE, and process it by the uplink amplification link along the opposite path, that is, it is transmitted to the base station through the low noise amplifier, down converter, filter, intermediate amplifier, up converter, power amplifier, so as to realize two-way communication between the base station and the UE.

[0054] Although traditional repeaters have been widely used in the network, providing an effective blind spot filling solution for network coverage. However, repeaters also have technical limitations, that is, while amplifying useful signals, they will also synchronously amplify system noise, and due to the lack of resource optimization functions, their performance gains are limited. Therefore, in order to overcome these limitations, the 3rd Generation Partnership Project (3GPP) proposed the concept of new radio (NR) NCR. Compared with traditional repeaters, NCR, as a radio frequency repeater with the ability to receive and process control information from the network side, can optimize the control amplification and forwarding strategy based on the SCI sent from the network side, thereby effectively improving the amplification and forwarding efficiency of useful signals, suppressing noise, and improving spatial diversity gain performance. The introduction of this technology not only overcomes the limitations of traditional repeaters, but also provides a new solution for the optimization and upgrading of wireless communication networks.

[0055] Although NCR has certain advantages in the field of wireless communication, it still faces some problems in the management of UEs under NCR: the base station cannot accurately identify the UEs working under each NCR, which makes it impossible for the base station to effectively manage the UEs under NCR. When there is frequency overlap or signal interference between the UEs under the NCR and the UEs under the base station side, it is difficult for the base station to effectively manage and optimize, which in turn affects the performance and stability of the wireless communication network.

[0056] In order to solve the above technical problems, the embodiment of the present application provides a communication method, in which the base station can compare the first identifiers sent by multiple NCRs and the second identifiers sent by multiple target terminals. For the first identifier sent by the first NCR and the second identifier sent by the first terminal, when the first identifier sent by the first NCR and the second identifier sent by the first terminal are consistent, it can be determined that the first terminal accesses the base station through the first NCR. In this way, the base station can accurately identify the UE under each NCR, thereby effectively managing the UE under the NCR, thereby avoiding interference between the UE under the base station side and the UE under the NCR, and ensuring the performance and stability of the wireless communication network.

[0057] Figure 2 An architecture diagram of a communication system provided in an embodiment of the present application, such as Figure 2 As shown, the system framework includes: base station 201, NCR202 and terminal 203.

[0058] Base station 201 can be a base station (base transceiver station, BTS) in the global system for mobile communication (GSM), code division multiple access (CDMA), a base station in wideband code division multiple access (WCDMA), a base station in the Internet of things (IoT) or narrowband Internet of things (NB IoT), a base station in the future 5G mobile communication network or the future evolved public land mobile network (PLMN).

[0059] The embodiment of the present application does not limit the number of base stations 201 in the communication system, and may include: Figure 2 More or fewer base stations 201.

[0060] The embodiment of the present application does not limit the number of NCR202 in the communication system, and may include: Figure 2 More or less NCR202.

[0061] Terminal 203 may be a device that provides voice and / or data connectivity to a user, a device with wireless connection function, or other device connected to a wireless modem. The terminal may be at least one of a desktop computer, a laptop, a wireless terminal, and a laptop portable computer. In one embodiment, terminal 203 has a communication function and can access a wired network or a wireless network.

[0062] The embodiment of the present application does not limit the number of terminals 203 in the communication system, and may include: Figure 2 More or less terminals 203.

[0063] It should be noted that, in the embodiment of the present application, the terminal 203 may be a terminal working under the NCR 202 (hereinafter referred to as the target terminal), or a terminal working under the base station 201 .

[0064] In the embodiment of the present application, each NCR 202 may send a first identifier to the base station 201, and each target terminal may send a second identifier to the base station 201. For the first NCR and the first target terminal (hereinafter referred to as the first terminal), after the base station 201 receives the first identifier sent by the first NCR and the second identifier sent by the first terminal, it may determine that the first terminal is connected to the base station 201 through the first NCR if the first identifier sent by the first NCR and the second identifier sent by the first terminal are consistent.

[0065] Figure 3 A flow chart of a communication method provided in an embodiment of the present application is shown as follows: Figure 3 As shown, this method is Figure 2 The base station 201 shown is executed, and the method includes:

[0066] S301, receiving first identifiers sent by multiple NCRs and second identifiers sent by multiple target terminals.

[0067] Among them, a target terminal is connected to the base station through an NCR.

[0068] The first identifier sent by the NCR and the second identifier sent by the target terminal may include an SSB beam identifier or a CRI of a reference signal. The reference signal may be sent by the base station to the NCR, or may be sent by the base station to the NCR and then forwarded by the NCR to the target terminal.

[0069] Specifically, each NCR may send a first identifier to the base station. Each target terminal may send a second identifier to the NCR to which it is connected, and then the NCR to which it is connected forwards the second identifier to the base station. Accordingly, the base station may receive the first identifier sent by each NCR, and receive the second identifier sent by the target terminal forwarded by the NCR.

[0070] S302: When the first identifier sent by the first NCR and the second identifier sent by the first terminal are consistent, determine that the first terminal is connected to the base station through the first NCR.

[0071] The multiple NCRs include a first NCR, and the multiple target terminals include a first terminal.

[0072] Specifically, for the first NCR and the first terminal, after receiving the first identifier sent by the first NCR and the second identifier sent by the first terminal, the base station can compare the first identifier and the second identifier, and determine that the first terminal is connected to the base station through the first NCR if the first identifier and the second identifier are consistent.

[0073] Through the above solution, the base station determines which NCR the target terminal uses to connect to the base station by comparing the first identifier sent by the NCR with the second identifier sent by the target terminal. In this way, the base station can effectively manage the terminals under the NCR and the terminals under the base station side, avoiding interference between the terminals under the NCR and the terminals under the base station side.

[0074] In an optional implementation, before executing the above S301, the base station may determine the target terminal through the following embodiment 1 and embodiment 2.

[0075] Embodiment 1

[0076] Figure 4 A flow chart of another communication method provided in an embodiment of the present application is shown as follows: Figure 4 As shown, this method is Figure 2 The base station 201 shown is executed, and the method includes:

[0077] S401, acquiring a transmission power of a first signal sent to a terminal, and a reception power of the first signal received by the terminal.

[0078] The embodiment of the present application does not limit the type of the first signal. For example, the first signal may be a reference signal, such as a CSI-RS, a demodulation reference signal (DMRS), and a channel sounding reference signal (SRS). For another example, the first signal may be a synchronization signal, such as a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

[0079] Specifically, the base station may send a first signal to the terminal and obtain the transmission power of the first signal sent to the terminal. After receiving the first signal, the terminal may measure the first signal to obtain the reception power of the first signal and send the reception power of the first signal to the base station.

[0080] S402: Determine a path loss of a first signal during transmission based on the transmit power and the receive power.

[0081] Specifically, after the base station obtains the transmit power and the receive power of the first signal, it can determine the path loss of the first signal during the transmission process according to the difference between the transmit power and the receive power.

[0082] Exemplarily, assuming that the transmission power of the first signal sent by the base station to the terminal is TP, and the reception power of the first signal received by the terminal is RP, on this basis, the base station can obtain the path loss PL of the first signal by the following formula 1.

[0083] PL = TP-RP (Formula 1)

[0084] The units of PL, TP and RP are decibel relative to one milliwatt (dBm).

[0085] S403: Determine the distance between the base station and the terminal based on the path loss.

[0086] The embodiments of the present application do not limit the method for determining the distance between the base station and the terminal. For example, the base station can determine the distance between the base station and the terminal through a free space path loss model (i.e., based on path loss). For another example, the base station can determine the distance between the base station and the terminal through a signal propagation model. For another example, the base station can determine the distance between the base station and the terminal based on a positioning technology method.

[0087] Specifically, taking the method for determining the distance between the base station and the terminal as a path loss-based method as an example, the base station stores configuration information internally, and the configuration information includes an operating frequency. After the base station determines the path loss of the first signal, it can obtain the operating frequency by reading the configuration information stored in itself. On this basis, the base station can determine the distance between itself and the terminal based on the path loss of the first signal, the operating frequency, and the speed of light.

[0088] Exemplarily, the base station may determine the distance between itself and the terminal through a free space path loss model, wherein the calculation formula of the free space path loss model may refer to the following formula 2.

[0089] PL = 20log 10 d+20log 10 f+20log 10 c(Formula 2)

[0090] Where d is the distance between the base station and the terminal in meters (meter, m), f is the operating frequency in hertz (hertz, Hz), and c is the speed of light, which is generally 3x10 5 Meters / second.

[0091] S404: For each terminal, determine a first delay based on the distance between the base station and the terminal, and determine the terminal as a target terminal when the difference between the first delay and the second delay is greater than a delay threshold.

[0092] The second delay is determined based on the time when the base station sends the first signal to the terminal and the time when the base station receives the second signal sent by the terminal in response to the first signal.

[0093] The type of the second signal can refer to the above description of the type of the first signal, and will not be described in detail here.

[0094] The embodiment of the present application does not limit the value of the delay threshold. For example, the delay threshold may be 5 microseconds, 10 microseconds, or 15 microseconds.

[0095] Specifically, for each terminal, after the base station determines the distance between itself and the terminal, it can determine the first delay by the ratio between the distance and the speed of light. In addition, the base station can determine the second delay by the difference between the time when the base station sends the first signal to the terminal and the time when the base station receives the second signal sent by the terminal in response to the first signal. On this basis, when the difference between the first delay and the second delay is greater than the delay threshold, the base station can determine the terminal as the target terminal.

[0096] Exemplarily, the base station may determine the first delay T1 by using the following formula three.

[0097] T1=d / c (Formula 3)

[0098] Where d is the distance between the base station and the terminal, and c is the speed of light.

[0099] In addition, if Figure 5 As shown, the base station (BS) can obtain the time t1 when the first signal S1 is sent to the terminal (UE) through the downlink channel (DL), and obtain the time t2 when the second signal S2 sent by the UE through the uplink channel (such as the physical random access channel (PRACH)) is received. After that, the base station can determine the second delay T2 based on the difference between t1 and t2. On this basis, Figure 5 In (a), the difference between T1 and T2 is less than the time domain threshold (such as 5 microseconds), and the base station can determine that the UE is a terminal on the base station side. Figure 5 In (b), the difference between T1 and T2 is greater than the time domain threshold (such as 5 microseconds), and the base station can determine that the UE is a target terminal, that is, a terminal under the NCR.

[0100] Based on the above solution, the base station can determine the terminal accessing the base station through the NCR, ie, the target terminal, through the first delay and the second delay, and exclude the terminal on the base station side, thereby providing a basis for determining the terminal under each NCR.

[0101] Embodiment 2

[0102] Figure 6 A flow chart of another communication method provided in an embodiment of the present application is as follows: Figure 6 As shown, this method is Figure 2 The base station 201 shown is executed, and the method includes:

[0103] S601: For each terminal, send a third signal to the terminal, and receive a first RSRP sent by the terminal in response to the third signal.

[0104] The type of the third signal can refer to the above description of the type of the first signal, and will not be described in detail here.

[0105] Specifically, for each terminal, the base station may send a third signal to the terminal. After receiving the third signal, the terminal may measure the third signal to obtain a first RSRP, and send the first RSRP to the base station.

[0106] S602: Send a status instruction to each NCR.

[0107] The status instruction is used to instruct each NCR to switch its working state. The working state of NCR includes active state and closed state.

[0108] Specifically, after receiving the first RSRP, the base station may send a status instruction to each NCR. Accordingly, for each NCR, after receiving the status instruction, the NCR may switch the current working state, such as if the current working state of the NCR is an active state, after receiving the status instruction, the active state may be switched to a closed state, or if the current working state of the NCR is a closed state, after receiving the status instruction, the closed state may be switched to an active state. After switching the working state, the NCR may send a response message to the base station.

[0109] S603: For each terminal, send a fourth signal to the terminal, and receive a second RSRP sent by the terminal in response to the fourth signal.

[0110] The type of the fourth signal can refer to the above description of the type of the first signal, and will not be described in detail here.

[0111] Specifically, after receiving the response message sent by the NCR, the base station may send a fourth signal to each terminal. After receiving the fourth signal, the terminal may obtain the second RSRP in the manner of obtaining the first RSRP, and send the second RSRP to the base station.

[0112] S604: When the difference between the first RSRP and the second RSRP is greater than the RSRP threshold, determine the terminal as a target terminal.

[0113] The embodiment of the present application does not limit the value of the RSRP threshold. For example, the RSRP threshold may be 1 dBm, 2 dBm, or 3 dBm.

[0114] Specifically, for each terminal, after receiving the first RSRP and the second RSRP sent by the terminal, the base station can compare the first RSRP and the second RSRP, and determine the terminal as a target terminal when the difference between the first RSRP and the second RSRP is greater than an RSRP threshold (such as 1dBm).

[0115] Based on the above scheme, the base station can determine the terminals accessing the base station through the NCR by receiving the RSRP sent by the terminals in different working states of the NCR, exclude the terminals on the base station side, and provide a basis for subsequently determining the terminals under each NCR.

[0116] The following will combine the above-mentioned various embodiments to introduce the communication method provided by the present application in detail. Figure 7 An interactive flow chart of a communication method provided in an embodiment of the present application, such as Figure 7 As shown, the method includes:

[0117] S701: A base station sends a first signal to a terminal.

[0118] S702: The terminal measures the first signal to obtain receiving power of the first signal.

[0119] S703: receiving power of a first signal sent by the terminal to the base station.

[0120] S704: The base station obtains the transmission power of the first signal sent to the terminal.

[0121] S705: The base station determines the path loss of the first signal during the transmission process based on the transmit power and the receive power.

[0122] S706: The base station determines the distance between itself and the terminal based on the path loss.

[0123] S707: The base station determines a first delay based on the distance between itself and the terminal.

[0124] S708: The base station determines a second delay based on a time point at which the first signal is sent to the terminal and a time point at which the received power of the first signal sent by the terminal is received.

[0125] S709: When the difference between the first delay and the second delay is greater than the delay threshold, the base station determines the terminal as a target terminal.

[0126] S710, the base station sends an SSB beam to the NCR.

[0127] S711, NCR determines the first SSB beam identifier based on the SSB beam.

[0128] S712, NCR sends the first SSB beam identifier to the base station.

[0129] S713, NCR sends the SSB beam sent by the base station to the target terminal.

[0130] S714: The target terminal determines a second SSB beam identifier based on the SSB beam.

[0131] S715, the target terminal sends a second SSB beam identifier to the base station.

[0132] S716: When the first SSB beam identifier and the second SSB beam identifier are consistent, the base station determines that the target terminal is connected to the base station through the NCR.

[0133] Figure 8 An interactive flow chart of another communication method provided in an embodiment of the present application, such as Figure 8 As shown, the method includes:

[0134] S801: The base station sends a third signal to the terminal.

[0135] S802: The terminal measures the third signal to obtain a first RSRP.

[0136] S803: The terminal sends a first RSRP to the base station.

[0137] S804: The base station sends a status instruction to each NCR.

[0138] S805, NCR switches its own working state based on the state instruction.

[0139] S806, the NCR sends a response message to the base station.

[0140] S807: The base station sends a fourth signal to the terminal.

[0141] S808: The terminal measures the fourth signal to obtain a second RSRP.

[0142] S809: The terminal sends a second RSRP to the base station.

[0143] S810: When the difference between the first RSRP and the second RSRP is greater than an RSRP threshold, the base station determines the terminal as a target terminal.

[0144] S811, the base station sends a CSI-RS signal to the NCR.

[0145] S812, the NCR determines a first CRI based on the CSI-RS signal.

[0146] S813, the NCR sends a first CRI to the base station.

[0147] S814, the NCR sends the CSI-RS signal sent by the base station to the target terminal.

[0148] S815: The target terminal determines a second CRI based on the CSI-RS signal.

[0149] S816: The target terminal sends a second CRI to the base station.

[0150] S817: When the first CRI and the second CRI are consistent, the base station determines that the target terminal is connected to the base station through the NCR.

[0151] Fig. 9 A schematic diagram of the structure of a communication device provided in an embodiment of the present application is shown in FIG. Fig. 9 As shown, the communication device includes:

[0152] The transceiver unit 901 is configured to receive first identifiers sent by multiple NCRs and second identifiers sent by multiple target terminals.

[0153] The determining unit 902 is configured to determine that the first terminal is connected to the base station through the first NCR when the first identifier sent by the first NCR is consistent with the second identifier sent by the first terminal.

[0154] Optionally, the determination unit 902 is further used to determine, for each terminal, a first delay based on the distance between the base station and the terminal, and determine the terminal as a target terminal when a difference between the first delay and the second delay is greater than a delay threshold.

[0155] The second delay is determined based on the time when the base station sends the first signal to the terminal and the time when the base station receives the second signal sent by the terminal in response to the first signal.

[0156] Optionally, the determination unit 902 is further used to determine a path loss of the first signal during transmission, and then determine a distance between the base station and the terminal based on the path loss.

[0157] Optionally, the determination unit 902 is further used to obtain the transmission power of the first signal sent to the terminal and the reception power of the first signal received by the terminal, and then determine the path loss of the first signal during the transmission process based on the transmission power and the reception power.

[0158] Optionally, the transceiver unit 901 is further used to send a third signal to each terminal, and receive a first RSRP sent by the terminal in response to the third signal.

[0159] Optionally, the transceiver unit 901 is further configured to send a status instruction to each NCR, wherein the status instruction is used to instruct each NCR to switch its working state.

[0160] Optionally, the transceiver unit 901 is further used to send a fourth signal to each terminal, and receive a second RSRP sent by the terminal in response to the fourth signal.

[0161] Optionally, the determining unit 902 is further configured to, when a difference between the first RSRP and the second RSRP is greater than an RSRP threshold, determine the terminal as a target terminal.

[0162] Fig.10 Another possible structural diagram of the communication device involved in the above embodiment is shown. The communication device includes: a processor 1001 and a communication interface 1002. The processor 1001 is used to control and manage the actions of the communication device, and the communication interface 1002 is used to support the communication between the communication device and other network entities. The communication device may also include a memory 1003 and a bus 1004, and the memory 1003 is used to store program codes and data of the communication device.

[0163] Among them, the memory 1003 can be a memory in a communication device, etc., and the memory can include a volatile memory, such as a random access memory; the memory can also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory can also include a combination of the above types of memory.

[0164] The processor 1001 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of the present application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0165] The bus 1004 may be an extended industry standard architecture (EISA) bus, etc. The bus 1004 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.10 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0166] Through the description of the above implementation methods, technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0167] An embodiment of the present application provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the communication method in the above method embodiment.

[0168] An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a computer, the computer executes the communication method in the method flow shown in the above method embodiment.

[0169] Among them, the computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), a register, a hard disk, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above, or any other form of computer-readable storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application specific integrated circuit (ASIC). In the embodiments of the present application, a computer-readable storage medium may be any tangible medium that contains or stores a program, which may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0170] An embodiment of the present invention provides a computer program product including instructions, which, when executed on a computer, enables the computer to execute the communication method described in the embodiment of the present application.

[0171] Since the communication device, computer-readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above method, the technical effects that can be obtained can also refer to the above method embodiments, and the embodiments of the present invention will not be repeated here.

[0172] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0173] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0174] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0175] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to a base station, the method comprises: Receiving first identifiers sent by a plurality of network control repeaters NCR and second identifiers sent by a plurality of target terminals; one of the target terminals is connected to the base station through one of the NCRs; When the first identifier sent by the first NCR is consistent with the second identifier sent by the first terminal, it is determined that the first terminal is connected to the base station through the first NCR; the multiple NCRs include the first NCR; and the multiple target terminals include the first terminal.

2. The method according to claim 1, characterized in that The first identifier and the second identifier include any of the following: Synchronization signal block SSB beam identifier; A reference signal resource indicator CRI; the reference signal is sent by the base station.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: The target terminal is determined by: For each terminal, determine a first delay based on a distance between the base station and the terminal; if a difference between the first delay and the second delay is greater than a delay threshold, determine the terminal as the target terminal; The second delay is determined based on the time when the base station sends a first signal to the terminal and the time when the base station receives a second signal sent by the terminal in response to the first signal.

4. The method according to claim 3, characterized in that Before determining the first time delay based on the distance between the base station and the terminal, the method further includes: Determining a path loss of the first signal during transmission; Based on the path loss, a distance between the base station and the terminal is determined.

5. The method according to claim 4, characterized in that The determining a path loss of the first signal during transmission includes: Acquire a transmit power for sending the first signal to the terminal, and a receive power for receiving the first signal by the terminal; The path loss of the first signal during transmission is determined based on the transmit power and the receive power.

6. The method according to claim 1 or 2, characterized in that: The method further comprises: The target terminal is determined by: For each of the terminals, sending a third signal to the terminal, and receiving a first reference signal received power RSRP sent by the terminal in response to the third signal; Sending a status instruction to each of the NCRs; the status instruction is used to instruct each of the NCRs to switch working states; Sending a fourth signal to the terminal, and receiving a second RSRP sent by the terminal in response to the fourth signal; In a case where a difference between the first RSRP and the second RSRP is greater than an RSRP threshold, the terminal is determined as the target terminal.

7. The method according to claim 6, characterized in that The working status includes any of the following: Active status; Closed state.

8. A communication device, characterized in that: The device comprises: A transceiver unit, used for receiving first identifiers sent by a plurality of network control repeaters NCR and second identifiers sent by a plurality of target terminals; one of the target terminals is connected to the base station via one of the NCRs; The determination unit is used to determine that the first terminal is connected to the base station through the first NCR when the first identifier sent by the first NCR is consistent with the second identifier sent by the first terminal; the multiple NCRs include the first NCR; and the multiple target terminals include the first terminal.

9. A communication device, characterized in that: include: A processor and a communication interface; the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the communication method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions. When a computer executes the instructions, the computer executes the communication method according to any one of claims 1 to 7.

11. A computer program product, characterized in that The computer program product comprises computer instructions, and when the computer instructions are executed on a computer, the computer is caused to execute the communication method according to any one of claims 1 to 7.

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