Device identification method and device

Abstract

The embodiment of the present invention provides a device identification method and device, which includes: a network device determines that the first device is a smart repeater based on first information and / or a first resource, or determines that the first device is to connect to the network as a smart repeater. Furthermore, the network device can identify and distinguish whether the first device is a repeater or a normal terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, realize flexible deployment of the repeater, and reduce the network deployment cost.

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE The present invention relates to the field of communications technology. [Background technology]

[0002] Compared with traditional 3G (third generation mobile communication technology) and 4G (fourth generation mobile communication technology) systems, 5G (fifth generation mobile communication technology) systems can provide wider bandwidth and higher data rates and support more types of terminals and diverse industrial services. Therefore, the traditional deployment frequency of 5G systems is usually significantly higher than that of 3G and 4G systems. For example, 5G systems may be deployed in the millimeter wave band.

[0003] However, the higher the carrier frequency, the greater the signal fading during transmission. Therefore, in the practical deployment of 5G systems, how to enhance cell coverage, especially in the mmWave band, has become an urgent problem to be solved.

[0004] The above description of the background art is merely for the purpose of more clearly and completely explaining the configurations of the present invention and for the understanding of those skilled in the art, and should not be construed as meaning that these configurations are well known to those skilled in the art just because they are described in the background art of the present invention. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to better solve the coverage problem in the practical deployment of cellular mobile communication systems, adopting a radio frequency repeater (RF Relay / Repeater) to amplify and forward communication signals between terminal devices and network devices is a relatively common deployment method. Radio frequency repeaters are relatively widely applied in the practical deployment of 3G and 4G systems. Generally, a radio frequency repeater is a device that amplifies and forwards signals between network devices and terminal devices in the radio frequency domain.

[0006] To address the coverage problem in the deployment of 5G systems, one possible solution is to employ radio frequency repeaters to enhance coverage. However, traditional radio frequency repeaters do not have the ability to communicate with network devices and cannot directly obtain information about uplink and downlink configurations from network devices. Therefore, when such repeaters are configured in 5G systems, they can improve signal strength, but they do not have enough flexibility to respond to complex environmental changes, and cannot achieve the same effect as when similar radio frequency repeaters are configured in 3G and 4G systems.

[0007] A smart repeater is an enhancement of a conventional radio frequency repeater, and has the ability to receive and process side control information from the network. The side control information allows the smart repeater to perform amplification and forwarding operations in a more efficient manner, thereby reducing unwanted noise amplification, providing better spatially directional transmission and reception, and simplified network integration.

[0008] However, the inventors of the present invention have discovered that in a scenario in which smart repeaters are deployed, there is currently no method for identifying a smart repeater when the smart repeater connects to a network, i.e., a method for determining a smart repeater.

[0009] In view of at least one of the above problems, embodiments of the present invention provide a method and apparatus for device identification. [Means for solving the problem]

[0010] In one aspect of an embodiment of the present invention, there is provided an apparatus identification method applied to a first network apparatus, comprising: receiving first information transmitted by the first apparatus, the first information indicating that the first apparatus is a repeater, or used to determine that the first apparatus connects to a network as a repeater, or the first information being repeater-specific first information, or the first information being transmitted on a first resource, the first resource being a repeater-specific first resource.

[0011] Another aspect of an embodiment of the present invention provides an apparatus identification method applied to a first apparatus, comprising a step of the first apparatus transmitting first information to a first network apparatus, the first information indicating that the first apparatus is a repeater or used to determine that the first apparatus connects to a network as a repeater, or the first information being repeater-specific first information, or the first information being transmitted on a first resource, the first resource being a repeater-specific first resource.

[0012] Another aspect of an embodiment of the present invention provides an apparatus identification device, applied to a first network device, comprising: a receiving unit for receiving first information transmitted by the first device, the first information indicating that the first device is a repeater, or used to determine that the first device connects to a network as a repeater, or the first information being repeater-specific first information, or the first information being transmitted on a first resource, the first resource being a repeater-specific first resource.

[0013] Another aspect of an embodiment of the present invention provides an apparatus identification device, applied to a first apparatus, comprising: a transmitting unit configured to transmit first information to a first network apparatus, the first information indicating that the first apparatus is a repeater, or used to determine that the first apparatus connects to a network as a repeater, or the first information being repeater-specific first information, or the first information being transmitted on a first resource, the first resource being a repeater-specific first resource.

[0014] One of the advantageous effects of the embodiment of the present invention is as follows: the network device can determine that the first device is a smart repeater or determine that the first device connects to the network as a smart repeater according to the first information and / or the first resource. In addition, the network device can identify and distinguish whether the first device is a repeater or an ordinary terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, realize the flexible deployment of the repeater, and reduce the network deployment cost.

[0015] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail to show how the principles of the present invention can be employed. However, the scope of the embodiments of the present invention is not limited to these. The embodiments of the present invention include modifications, alterations, and equivalents within the spirit and scope of the appended claims.

[0016] Features described and / or illustrated in one embodiment may be used in the same or similar manner in one or more other embodiments and may be combined with or substituted for features in other embodiments.

[0017] It should be noted that in this text, the term "including / having" means the presence of a feature, element, step or component, and does not exclude the presence or addition of one or more other features, elements, steps or components. [Brief description of the drawings]

[0018] Elements and features depicted in one drawing and one embodiment of the present invention may be combined with elements and features shown in one or more drawings or embodiments, and in the drawings, like reference numerals may designate corresponding elements in multiple drawings and may designate corresponding elements used in more than one embodiment. [Figure 1] FIG. 2 is a schematic diagram of an example of an application scenario of an embodiment of the present invention; [Diagram 2] 2 is a schematic diagram of an example of signal transmission and reception by a repeater according to an embodiment of the present invention. FIG. [Diagram 3] 4 is a schematic diagram of another example of signal transmission and reception by a repeater according to an embodiment of the present invention. FIG. [Figure 4] 2 is a schematic diagram of an example of a device identification method according to an embodiment of the present invention; [Diagram 5] 2 is a schematic diagram of an example of a device identification method according to an embodiment of the present invention; [Figure 6] 1 is a schematic diagram of an example of a device identification device according to an embodiment of the present invention. [Figure 7] 1 is a schematic diagram of an example of a device identification device according to an embodiment of the present invention. [Figure 8] 1 is a schematic diagram of a network device according to an embodiment of the present invention; [Figure 9] 1 is a schematic diagram of a first device according to an embodiment of the present invention. [Figure 10] FIG. 2 is a schematic diagram of a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. However, the present invention is not limited to the described embodiments. The present invention includes all modifications, variations, and equivalents within the scope of the appended claims. Each embodiment of the present invention will be described below with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0020] In embodiments of the present invention, the terms "first", "second", etc. are used in the title to distinguish different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "including", "comprising", "having", etc. refer to the presence of listed features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

[0021] In the embodiments of the present invention, the singular forms "a", "the", etc., include the plural forms and should be understood broadly as "one kind" or "a class", and are not limited to "one". In addition, the term "said" should be understood to include both the singular and the plural forms, unless the context clearly indicates otherwise. In addition, the term "described in" should be understood to mean "described at least in part", and the term "based on" should be understood to mean "based at least in part on", unless the context clearly indicates otherwise.

[0022] In an embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as, for example, Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0023] Additionally, communications between devices in a communication system may occur according to any stage of communication protocols, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), and / or other currently known or future developed communication protocols.

[0024] In the embodiment of the present invention, the term "network device" refers to a device in a communication system, for example, allowing a terminal device to access the communication system and providing a service to the terminal device. The network device may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0025] Among them, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), etc., as well as a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay or a low power node (e.g., femto, pico, etc.), an Integrated access and backhaul (IAB) node or an IAB-DU or an IAB-donor. Also, the term "base station" may include some or all of the functions thereof, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0026] In the embodiment of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to an apparatus that connects to a communication network via, for example, a network device and receives a network service. The terminal apparatus may be fixed or mobile, and may be called a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), an IAB-MT, a station, etc.

[0027] Among them, the terminal device may include, but is not limited to, a mobile phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, and the like.

[0028] Also, for example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring instrument or device, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, an industrial wireless device, a surveillance camera, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, and the like.

[0029] Furthermore, the term "network side" or "network device side" refers to the side of a network, which may be a base station or may include one or more of the network devices mentioned above. The term "user side" or "terminal side" or "terminal device side" refers to the side of a user or terminal, which may be a UE or may include one or more of the terminal devices mentioned above. In this specification, unless otherwise specified, "device" may refer to a network device or may refer to a terminal device.

[0030] The following describes an embodiment scenario of the present invention with reference to an example, but the present invention is not limited thereto.

[0031] FIG. 1 is a schematic diagram of an example of an application scenario of an embodiment of the present invention. As shown in FIG. 1, for convenience of explanation, one network device (e.g., 5G base station gNB or gNB-CU) 101, one repeater 102, and one terminal device (UE) 103 are described as an example, but the present invention is not limited thereto. As shown in FIG. 1, the terminal device 103 establishes a connection with the network device 101 and communicates. In order to improve communication quality, the signal between the terminal device 103 and the network device 101 is processed (e.g., amplified, etc.) through the repeater 102.

[0032] As shown in Figure 1, it receives, processes and transmits radiated or conducted RF carriers in both the downlink direction (from network equipment to terminal equipment) and the uplink direction (from terminal equipment to network equipment). The processing includes power amplification, beamforming, propagation environment reconstruction, etc. In an operating band where only downlink or uplink is designated, the transmission of only the designated uplink or downlink is repeated.

[0033] Figures 2 and 3 are schematic diagrams of signal transmission and reception by repeaters. As shown in Figure 2, the repeaters include omnidirectional or fixed-directional (non-time-adaptive) Tx / Rx, or repeaters with time-adaptive capabilities. As shown in Figure 3, the beams for transmitting radio frequency signals are controlled by network devices (e.g., RAN nodes).

[0034] In an embodiment of the present invention, existing or future services can be performed between the network device and the terminal device. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), highly reliable low latency communication (URLLC), and vehicle-to-everything (V2X) communication.

[0035] In FIG. 1, the repeater is described as an example that it can forward signals between a network device and a terminal device, but the present invention is not limited thereto. For example, the repeater can function as a second device that forwards signals between a first device and a third device, and directly communicate with the first device and / or the third device. The first to third devices may be any devices in the above network. In the following embodiment, the first device is described as a network device, and the third device is a terminal device as an example.

[0036] In the embodiment of the present invention, a beam may be represented as a reference signal (RS), a transmission configuration indication (TCI), a spatial domain filter, etc., or may be represented as a beam index, a reference signal index, a transmission configuration indication index, a spatial domain filter index, etc. The above reference signal may be, for example, a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), an RS for a repeater, an RS transmitted by a repeater, etc. The above TCI may be represented as a TCI state.

[0037] In an embodiment of the present invention, the repeater may be expressed as a network controlled repeater (NCR), a reconfigurable intelligent surfaces (RIS), a repeater, a radio frequency repeater, a forwarder, a radio frequency forwarder, a repeater node, a repeater node, a forwarder node, a smart repeater, a smart forwarder, a smart repeater node, a smart repeater node, a smart forwarder node, etc. The repeater may be a type of node, device, or entity, but the present invention is not limited thereto.

[0038] In the embodiment of the present invention, the network device may be a device of a serving cell of a terminal device, a device of a cell in which a repeater is located, a device of a serving cell of a repeater, or a parent node of a repeater. The present invention is not limited to the name of the repeater, and any device capable of implementing the above functions is included in the scope of the repeater according to the present invention.

[0039] In a scenario where a smart repeater is deployed, when the smart repeater communicates with a network device, the network device needs to identify the smart repeater in order to communicate with the smart repeater subsequently. In addition, if the smart repeater uses the method of identifying a normal terminal device in the current communication standard, the network device cannot distinguish between the smart repeater and the normal terminal device. Therefore, it is necessary to introduce a specific identification method for the smart repeater.

[0040] In view of the above problems, various aspects of the embodiments of the present invention will now be described with reference to the accompanying drawings, which are merely illustrative and not limiting of the present invention.

[0041] <Example 1> An embodiment of the present invention provides a device identification method, which is explained from the perspective of a first network device.

[0042] 4 is a schematic diagram of an example of a device identification method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

[0043] Step 401: Receive first information sent by a first device.

[0044] Here, the first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

[0045] Thus, the first network device can determine that the first device is a smart repeater or can determine that the first device connects to the network as a smart repeater according to the first information and / or the first resource. Furthermore, the network device can identify and distinguish whether the first device is a repeater or an ordinary terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, thereby realizing flexible deployment of the repeater and reducing the network deployment cost.

[0046] It should be noted that the above FIG. 4 only shows a schematic diagram of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, some other steps may be added, and some steps may be removed. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 4.

[0047] In some embodiments, the first information and / or the first resource may be the first information in a random access procedure and / or the first resource used in the random access procedure, or the first information may be the first information after the random access procedure is completed. For ease of understanding, the following description will be given by way of example of a random access procedure.

[0048] In some embodiments, in a scenario where a smart repeater is deployed, the smart repeater needs to connect to the network via a random access procedure, such as a 4-step random access procedure or a 2-step random access procedure. The random access procedure includes a contention-based random access procedure and / or a non-contention-based random access procedure. The random access procedure further includes, but is not limited to, an initial random access procedure and / or a random access in a Radio Resource Control (RRC) Reestablishment procedure and / or a random access in a Handover procedure.

[0049] The following briefly describes a 4-step random access procedure and a 2-step random access procedure between a repeater and a first network device.

[0050] For example, taking the contention-based random access procedure as an example, the 4-step random access procedure is as follows: Step 1: A repeater sends a message 1 (MSG1) to a first network device on a random access resource, for example, a random access preamble; Step 2: The first network device sends a message 2 (MSG2) to the repeater, for example, a random access response (RAR), which can indicate a temporary radio network identifier (TC-RNTI), allocate resources for a subsequent message 3 (MSG3), etc.; Step 3: The repeater sends a message 3 (MSG3) to the first network device, for example, to adjust the uplink timing; Step 4: The first network device sends a message 4 (MSG4) to the repeater, indicating that the contention-based random access is successful, and upgrades the TC-RNTI to a C-RNTI. After completing the above 4-step random access procedure, the repeater may further send a first message after the random access procedure is completed, for example, referred to as a message 5 (MSG5). Then, the repeater can perform subsequent signaling transmission with the first network device. In some embodiments, the specific contents of the above MSG1 to MSG5 may refer to the prior art, and the description thereof is omitted in this specification.

[0051] For example, taking the contention-based random access procedure as an example, the 2-step random access procedure is as follows: Step A: the repeater sends a message A (MSGA) to a first network device on a random access resource, for example, sending a random access preamble and / or uplink data; Step B: The first network device sends a message B (MSGB) to the repeater, for example, a random access response (RAR), where the random access response indicates that the contention-based random access is successful. After completing the above 2-step random access procedure, the repeater can perform subsequent signaling transmission with the first network device. In some embodiments, the details of the above MSGA to MSGB may refer to the prior art, and the description thereof is omitted in this specification.

[0052] The following describes how a first network device identifies that the first device is a repeater or determines that the first device will connect to the network as a repeater.

[0053] In some embodiments, the first network device determines that the first device is a repeater or that the first device connects to the network as a repeater based on the first information and / or the first resource, for example, the first information indicates that the first device is a repeater or is used to determine that the first device connects to the network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

[0054] For example, the repeater-specific first resource includes a random access preamble (corresponding to the first information) carrying MSG1 / MSGA in the random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in the random access procedure. The first information includes at least one of the random access preamble of MSG1 / MSGA in the random access procedure, the related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure, the first indication information in the first message after the random access procedure is completed, or the second indication information or the third indication information in the capability-related message.

[0055] For example, in some embodiments, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the first resource used by the first device in the random access procedure. Alternatively, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the random access preamble in MSG1 / MSGA sent by the first device in the random access procedure. Alternatively, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the related information of the payload carried by MSG3 / MSGA sent by the first device in the random access procedure. Alternatively, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the first indication information of the first device in the first message after the completion of the random access procedure. Alternatively, the first network device determines that the first device is a repeater or will connect to the network as a repeater based on the second indication information or the third indication information in the capability-related message of the first device.

[0056] Each of these will be explained below.

[0057] (1) A first network device determines, based on a first resource, that the first device is a repeater or connects to the network as a repeater.

[0058] In some embodiments, the first resource is repeater-specific, e.g., the repeater-specific random access resource is used to carry a random access preamble of MSG1 / MSGA that the repeater transmits in the random access procedure, and the repeater-specific PUSCH is used to carry the MSGA that the repeater transmits in the random access procedure.

[0059] In some embodiments, the first network device configures a repeater-specific (newly added) PUSCH resource for transmitting MSGA in the random access procedure, or designates some resources for the repeater from (existing) PUSCH resources for transmitting MsgA by a conventional terminal in the random access procedure.

[0060] In some embodiments, the information configured or specified by the first network device may be carried by broadcast information, for example, in a PUSCH allocation IE "MsgA-PUSCH-Config" that transmits MsgA in a SIB1 message as follows, the following (newly added) fields (domains) "msgA-PUSCH-ResourceGroupA-NCR" and / or "msgA-PUSCH-ResourceGroupB-NCR" and / or "frequencyStartMsgA-PUSCH msgA-PUSCH-NCR" and / or "TimeDomainAllocation-NCR" may be used. The definitions (descriptions) and values ​​of these (newly added) fields (domains) are the same as or similar to the parameters of a normal terminal in the IE "MsgA-PUSCH-Config", and the details thereof may refer to the prior art, and the description thereof will be omitted in this specification.

[0061] In some embodiments, the information configured or specified by the first network device may be carried by broadcast information, for example, using the following (newly added) IE "MsgA-PUSCH-Config-NCR" in the SIB1 message, which includes at least the following fields (domains) "msgA-PUSCH-ResourceGroupA" and / or "msgA-PUSCH-ResourceGroupB" and / or "frequencyStartMsgA-PUSCH msgA-PUSCH" and / or "TimeDomainAllocation". Regarding the definitions (explanations) and values ​​of the above (newly added) fields (domains), the parameters of the conventional terminal in the IE "MsgA-PUSCH-Config" may be reused, and the details thereof may refer to the prior art, and the description thereof will be omitted in this specification.

[0062] In some embodiments, the first network device configures a repeater-specific random access resource and transmits configuration information to the first device, the configuration information including repeater-specific PRACH configuration information, where the first resource is determined based on the repeater-specific PRACH configuration information, or the repeater-specific first resource is selected from the random access resources configured by the repeater-specific PRACH configuration information.

[0063] In some embodiments, the first network device configures a (newly added) random access resource for the repeater that is different from that of the normal terminal device, and transmits PRACH configuration information corresponding to the (newly added) random access resource to the first device. Alternatively, the first network device divides a specific subset for the repeater in the (existing) random access resource of the random access preamble of the normal terminal device, and transmits PARCH configuration information including the specific subset indication information to the first device.

[0064] In some embodiments, the above PRACH configuration information may be carried by broadcast information, for example, by a master system information block (MIB) and / or a system information block (SIB), where the system information block includes SIB1 and other SIBs such as SIB2 and SIB3. For the specific contents of SIB1 and other SIBs, reference may be made to the prior art, and the present specification is not limited thereto.

[0065] For example, the first network device configures a (newly added) random access resource for the repeater that is different from that of a normal terminal device, and sends PRACH configuration information corresponding to the (newly added) random access resource to the first device. The PRACH configuration information corresponding to the (newly added) random access resource may include at least one of the following information:

[0066] The number of PRACH transmission occasions (PRACH occasions) that are frequency division multiplexed in one time instance. Here, one time instance may be one or more slots, or one or more subframes, or one or more system frames, etc., and is not limited in this specification. Furthermore, the PRACH occasion is the position of the PRACH resource in the PRACH period, and the time domain position of the PRACH occasion is indicated by a specific field (domain) in the SIB1 message, for example, may be indicated by the field "RACH-ConfigGeneric". For a specific method of calculating the PRACH occasion, reference may be made to the prior art, and this specification is not limited thereto.

[0067] The offset in the frequency domain of the lowest PRACH transmission occasion (PRACH occasion) relative to the first physical resource block (PRB0) in the frequency domain.

[0068] An index of a PRACH configuration, where the PRACH configuration may be jointly determined by one or more parameters including a radio frame in which the PRACH resource is located, a PRACH period, a subframe number in which the PRACH resource is located, a start symbol in a RACH slot of the PRACH resource, the number of time-domain PRACH occasions in a RACH slot, a time-domain symbol length of one frequency-domain PRACH occasion, the number of PRACH slots in one subframe, etc. A specific calculation manner may refer to the prior art, and the present invention is not limited thereto. For example, the index of the PRACH configuration corresponds to a row in a table of repeater-specific PRACH configurations.

[0069] Sub-carrier spacing (SCS) of PRACH, e.g., 15kHZ, 30kHZ, 60kHZ, etc.

[0070] The number of synchronization signals and PBCH blocks (SSBs) in each RACH transmission occasion (Per RACH occasion).

[0071] In some embodiments, one or more of the above information may be indicated by adding a new field (domain) to the SIB1 message. For example, in the case of a 4-step random access procedure, the information may be indicated by a "RACH_ConfigCommon-NCR" field. In the case of a 2-step random access procedure, the information may be indicated by a "RACH_ConfigCommonTwoStepRA-NCR" field. The names of the fields described above or below are merely examples, and the embodiments of the present invention are not limited thereto.

[0072] In some embodiments, the first network device configures a repeater-specific (newly added) random access resource for the repeater. If the first device is a repeater, the first device may obtain the repeater-specific random access parameters after receiving the field related to the NCR-specific random access resource in the SIB1 message. The first device may select / use the repeater-specific (newly added) random access resource, for example, may use the repeater-specific (newly added) random access resource calculated using the above random access parameters at the time of initialization of the random access procedure. Alternatively, the first device may select a downlink reference signal (e.g., SSB and / or CSI-IRS) after obtaining the repeater-specific random access parameters, the downlink reference signal for which the repeater-specific random access resource is configured. Alternatively, the first device may determine the repeater-specific random access resource from a plurality of random access resources associated with the downlink reference signal based on the selected downlink reference signal. Then, the first device transmits the above MSG1 / MSGA (including the random access preamble) on the repeater-specific (newly added) random access resource. When the first device receives the MSG1 / MSGA on the above repeater-specific (newly added) random access resource, the first device can identify that the first device is a repeater. On the other hand, if the first device is not a repeater but a normal terminal device, the first device ignores the field related to the repeater-specific random access resource in the SIB1 message. Then, the first device transmits the random access preamble using the existing random access resource.

[0073] Thus, the first resource can implicitly indicate that the first device is a repeater or determine that the first device will connect to the network as a repeater. When the first network device receives the MSG1 / MSGA sent by the first device in the repeater-specific first resource, i.e., the repeater-specific random access resource, the first network device can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater. Thus, the repeater identification process can be realized.

[0074] In some embodiments, the first network device partitions a specific subset for the repeater in the (existing) random access resources of the random access preamble of a normal terminal device, and transmits PRACH configuration information including the above-mentioned specific subset indication information to the first device, where the specific subset indication information includes at least one of the following information:

[0075] Scaling factor of PRACH configuration period, where the above scaling factor may be the scaling factor of the period defined in the extended basic configuration, whose value range is "1, 2, 4, 8, 16, 32, 64", etc., and one or more of these value ranges may be indicated by the "prach-ConfigurationPeriodScaling-NCR" field in higher layer signaling.

[0076] The frame offset of a PARCH transmission occasion. Its value may range from 0 to 63, and a part of the above value range may be indicated by the field "rach-ConfigurationFrameOffset-NCR" in higher layer signaling.

[0077] Subframe offset or slot offset of a PARCH transmission occasion. Its value range is "0 to 39", and a part of the above value range may be indicated by the field "prach-ConfigurationSOffset-NCR" in higher layer signaling.

[0078] In some embodiments, one or more of the above information (prach-ConfigurationPeriodScaling-NCR, rach-ConfigurationFrameOffset-NCR, prach-ConfigurationSOffset-NCR) may be indicated by an existing field (domain) in the SIB1 message. For example, in the case of a 4-step random access procedure, it may be indicated by a "RACH-ConfigGeneric" field. In the case of a 2-step random access procedure, it may be indicated by a "RACH-ConfigGenericTwoStepRA" field. The names of the fields described above or below are merely examples, and the embodiments of the present invention are not limited thereto.

[0079] In some embodiments, the first network device divides a subset of the (existing) random access resources of the normal terminal device as repeater-specific random access resources for the repeater. If the first device is a repeater, the first device can obtain random access parameters in the above repeater-specific subset after receiving a field related to the NCR-specific random access resources in the SIB1 message. The first device may select / use the repeater-specific random access resources, for example, may use the repeater-specific (existing) random access resources calculated using the random access parameters at the time of initialization of the random access procedure. Alternatively, the first device may select a downlink reference signal (e.g., SSB and / or CSI-IRS) after obtaining the repeater-specific random access parameters, the downlink reference signal being configured with the repeater-specific random access resources. Alternatively, the first device determines the repeater-specific random access resources from the multiple random access resources associated with the downlink reference signal based on the selected downlink reference signal. Then, the first device transmits MSG1 / MSGA (including the random access preamble) on a specific (existing) random access resource. When the first network device receives MSG1 / MSGA on the repeater-specific (existing) random access resource, it can identify that the first device is a repeater. On the other hand, if the first device is not a repeater but a normal terminal device, the first device ignores the field related to the repeater-specific random access resource in the SIB1 message. Then, the first device transmits the random access preamble using the existing normal terminal device-specific random access resource.

[0080] Thus, the first resource can implicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives MSG1 / MSGA transmitted by the repeater in the first resource specific to the repeater, i.e., the (existing) random access resource specific to the repeater, the first device can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater. Thus, the repeater identification process can be realized.

[0081] In addition, the random access preamble carried in the first resource may be determined according to a conventional method or according to the method in “(2)”, and the embodiment of the present invention is not limited thereto.

[0082] (ii) The first network device identifies that the first device is a repeater or connects to the network as a repeater based on the random access preamble in MSG1 / MSGA sent by the first device in the random access procedure.

[0083] In some embodiments, the random access preamble is a repeater-specific random access preamble.

[0084] In some embodiments, the first network device configures a repeater-specific random access preamble and transmits configuration information to the first device, the configuration information including repeater-specific random access preamble configuration information, the first information being a random access preamble determined based on the repeater-specific random access preamble configuration information, or the repeater-specific random access preamble is selected from the random access preambles configured according to the repeater-specific random access preamble configuration information.

[0085] In some embodiments, for example, the first network device configures a (newly added) random access preamble for the repeater that is different from that of the normal terminal device, and transmits random access preamble configuration information corresponding to the (newly added) random access preamble to the first device. Alternatively, the first network device divides a specific subset for the repeater in the (existing) random access preamble of the normal terminal device, and transmits random access preamble configuration information including the specific subset indication information to the first device.

[0086] In some embodiments, the above random access preamble configuration information may be carried by broadcast information, for example, by a master system information block (MIB) and / or a system information block (SIB), where the system information block includes SIB1 and other SIBs, such as SIB2 and SIB3. The specific contents of SIB1 and other SIBs may refer to the prior art, and the present invention is not limited thereto.

[0087] For example, the first network device configures a (newly added) random access preamble for the repeater that is different from that of a normal terminal device, and sends random access preamble configuration information corresponding to the (newly added) random access preamble to the first device. The random access preamble configuration information corresponding to the (newly added) random access preamble includes at least one of the following information:

[0088] PRACH root sequence index, where the PRACH root sequence may be a ZC sequence, etc., and the specific meaning thereof may refer to the prior art, and the description thereof is omitted in this specification.

[0089] The number of preambles for contention-based random access of the repeater.

[0090] The number of contention-based preambles per SSB in group A, where group A is the number of preambles divided in the contention-based random access procedure, applicable to terminal devices in the middle position of a cell or terminal devices with better communication quality, and the specific definition of group A may refer to conventional standards, and the present invention is not limited thereto.

[0091] The number of contention-based preambles per SSB.

[0092] The total number of preambles for contention-based 4-step random access or 2-step random access on the RACH resource.

[0093] In some embodiments, one or more of the above information may be indicated by a newly added field (domain) in the SIB1 message. For example, in the case of a 4-step random access procedure, it may be indicated by the "RACH_ConfigCommon-NCR" field. In the case of a 2-step random access procedure, it may be indicated by the "RACH_ConfigCommonTwoStepRA-NCR" field.

[0094] In some embodiments, the first network device configures a (newly added) random access preamble for the repeater that is different from that for the normal terminal device. If the first device is a repeater, the first device may obtain the repeater-specific random access preamble parameters after receiving the field related to the NCR-specific random access preamble in the SIB1 message. The first device may select / use the repeater-specific random access preamble, for example, may use the random access preamble parameters to calculate the repeater-specific (newly added) random access preamble at the initialization of the random access procedure. Alternatively, the first device may select a downlink reference signal (e.g., SSB and / or CSI-IRS) after obtaining the repeater-specific random access preamble parameters, the downlink reference signal being configured with the repeater-specific random access preamble. Alternatively, the first device may determine the repeater-specific random access preamble from a plurality of random access preambles associated with the downlink reference signal based on the selected downlink reference signal. Then, the first device transmits a (newly added) repeater-specific random access preamble. When the first network device receives MSG1 / MSGA in the random access resource, it can identify that the first device is a repeater based on the repeater-specific random access preamble carried in MSG1 / MSGA. On the other hand, if the first device is not a repeater but a normal terminal device, the first device ignores the field related to the repeater-specific random access preamble in the SIB1 message. Then, the first device transmits the existing random access preamble.

[0095] Thus, the repeater-specific random access preamble can implicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the repeater-specific (newly added) random access preamble, it can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater. Thus, the repeater identification process can be realized.

[0096] Also, for example, the first network device divides a specific subset for a repeater in the (existing) random access preamble of a normal terminal device, and transmits random access preamble configuration information including the specific subset indication information to the first device. The specific subset indication information is also referred to as existing random access preamble subset indication information.

[0097] For example, the (existing) random access preamble may be shared with the repeaters, or a subset of the (existing) random access preamble may be used only for the repeaters.

[0098] In some embodiments, the first network device divides a subset of (existing) random access preambles of normal terminal devices as repeater-specific random access preambles for the repeater. If the first device is a repeater, the first device may obtain random access parameters in the repeater-specific subset after receiving a field related to the NCR-specific random access preamble in the SIB1 message. The first device may select / use a repeater-specific random access resource, for example, may use the random access parameters to calculate a repeater-specific (existing) random access preamble at the time of initialization of the random access procedure. Alternatively, the first device may select a downlink reference signal (e.g., SSB and / or CSI-IRS) after obtaining the repeater-specific random access parameters, the downlink reference signal being configured with the repeater-specific random access preamble. Then, the first device may determine the repeater-specific random access preamble from the multiple random access preambles associated with the downlink reference signal based on the selected downlink reference signal. Then, the first device transmits a repeater-specific (existing) random access preamble. When the first network device receives MSG1 / MSGA in the random access resource, it can identify that the first device is a repeater based on the repeater-specific random access preamble carried in MSG1 / MSGA. On the other hand, if the first device is not a repeater but a normal terminal device, the first device ignores the field related to the repeater-specific random access preamble in the SIB1 message. Then, the first device transmits an existing normal terminal device-specific random access preamble.

[0099] Thus, the repeater-specific random access preamble can implicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the repeater-specific (existing) random access preamble, it can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater. Thus, the repeater identification process can be realized.

[0100] (3) The first network device determines that the first device is a repeater or will connect to the network as a repeater based on the relevant information of the payload carried by the MSG3 / MSGA sent by the first device in the random access procedure.

[0101] In some embodiments, the first network device determines that the first device is a repeater or connects to the network as a repeater based on relevant information in a payload carried by the MSG3 / MSGA sent by the repeater, for example, the relevant information includes cause indication information or a user identifier (UE ID).

[0102] For example, the related information includes reason indication information, which is a predefined value indicating that the first device is a repeater or that the first device will connect to the network as a repeater.

[0103] In some embodiments, the cause indication information may include an establishment cause indication or a restoration cause indication, where the establishment cause indication is indicated by a higher layer to the RRC layer of the first device, or is determined by the RRC layer of the first device itself (based on the device's own capabilities). If the MSG3 is an RRC request, the cause indication information may be represented using an establishmentCause field. If the restoration cause indication is indicated by a higher layer to the access (AS) layer (including at least the RRC layer) of the first device, or is determined by the AS layer of the first device itself. If the MSG3 is an RRC resume, the cause indication information may be represented using an establishmentCause field.

[0104] In some embodiments, multiple types of cause indications may be predefined, including at least the predetermined value indicating that the first device is a repeater or that the first device will connect to the network as a repeater. If the first device is a repeater, the first device carries cause indication information by MSG3 / MSGA. The repeater-specific cause indication information is the predetermined value. Then, when the first network device receives MSG3 / MSGA, it can obtain the cause indication information by decoding, and identify the first device as a repeater or determine that the first device will connect to the network as a repeater. On the other hand, if the first device is not a repeater but a normal terminal device, the cause value carried by MSG3 / MSGA sent by the normal terminal device is a value other than the predetermined value, and the specific details may refer to the prior art, and the description thereof will be omitted here.

[0105] Thus, the predetermined value in the related information can explicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the cause indication information carried by the MSG3 / MSGA sent by the first device, it can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater, otherwise, it can identify that the first device is not a repeater but a normal terminal device. Thus, the repeater identification process can be realized.

[0106] For example, the relevant information includes a user identifier (UE ID), which is a predefined value indicating that the first device is a repeater or that the first device connects to the network as a repeater.

[0107] In some embodiments, the (second network device of) the core network provides the repeater with a repeater-specific device identifier in advance. The repeater-specific device identifier is a predetermined identifier indicating that the first device is a repeater or that the first device connects to the network as a repeater. Then, the upper layer of the repeater provides the repeater-specific device identifier to the RRC layer. The user identifier (UE ID) is obtained based on the repeater-specific device ID configured for the repeater by the second network device. For example, the RRC layer uses a part of the bit information (e.g., 39 bits) of the repeater-specific device identifier as the user identifier UE ID. Then, the repeater conveys the above determined UE ID via MSG3 / MSGA. For example, the repeater-specific device identifier (NCR-UE ID) may be determined based on 5G-SAE-Temporary User Identifier (SAE-Temporary Mobile Subscriber Identit: 5G-S-TMSI).

[0108] In some embodiments, if the first device is a repeater, the first device carries a part of the bit information (e.g., 39 bits) of the repeater-specific device identifier (NCR-UE ID) (predetermined identifier) ​​as the UE ID via MSG3 / MSGA. Then, after the first network device receives the UE ID, it can obtain the repeater-specific device identifier by decoding, thereby identifying that the first device is a repeater or determining that the first device will connect to the network as a repeater. On the other hand, if the first device is not a repeater but a normal terminal device, the MSG3 / MSGA sent by the normal terminal device carries the UE ID of the normal repeater.

[0109] Thus, the user identifier in the related information can implicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the user identifier carried in the MSG3 / MSGA sent by the first device, it can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater, otherwise, it can identify that the first device is not a repeater but a normal terminal device. Thus, the repeater identification process can be realized.

[0110] (4) The first network device determines, based on the first message (Msg5) after the random access procedure is completed, that the first device is a repeater or will connect to the network as a repeater.

[0111] In some embodiments, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the first indication information in the first message (Msg5) after the random access procedure is completed. For example, the first message (Msg5) is an RRC establishment complete message or an RRC recovery complete message, and the first indication information is used to indicate that the first device is a repeater or connects to the network as a repeater.

[0112] Preferably, the first message after the random access procedure is completed may be MSG5 in a 4-step random access procedure, or the first message after MsgB in a 2-step random access procedure, and the present invention is not limited thereto.

[0113] For example, a specific bit field (domain) indicating whether the first device is a repeater or not is newly added to the RRC establishment completion message or the RRC recovery completion message, for example, 1-bit information is newly added. Here, "0" indicates that the current first device is a repeater or connects to the network as a repeater, and "0" indicates that the current first device is a normal terminal device. Alternatively, multiple bit information may be newly added. Alternatively, when this new field appears, it may indicate that the current first device is a repeater or connects to the network as a repeater, or that the first device has repeater capability, but the present invention is not limited thereto.

[0114] In some embodiments, after the 4-step random access procedure or the 2-step random access procedure is completed, the first device sends a first message after the random access is completed to the first network device, and the first network device determines whether the first message sent by the first device carries first indication information and / or determines the value of the first indication information to determine whether the first device is a repeater or connects to the network as a repeater.

[0115] Thus, the first indication information can explicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the first indication information, the first network device can identify the first device as a repeater or determine that the first device will connect to the network as a repeater. Thus, a repeater identification process can be realized.

[0116] (5) The first network device determines, based on the second indication information or the third indication information in the capability-related message of the first device, that the first device is a repeater or will connect to the network as a repeater.

[0117] In some embodiments, the first network device determines that the first device is a repeater or connects to the network as a repeater based on the second indication information or the third indication information included in the capability-related message by the first device. For example, the capability-related message includes a UE Capability Information message or a UE Assistance Information message. The second indication information is used to indicate that the first device is a repeater, or to indicate that the first device connects to the network as a repeater, or to indicate that the first device has repeater capability. The third indication information is information indicating a first capability in the UE Capability Information message or the UE Assistance Information message, and the first capability is a repeater-specific capability.

[0118] For example, the second indication information being used to indicate that the first device is a repeater, or to indicate that the first device connects to the network as a repeater, or to indicate that the first device has repeater capability includes adding a specific bit field (domain) to a UE Capability Information message or a UE Assistance Information message to indicate that the first device is a repeater (a type of repeater), or to indicate that the first device connects to the network as a repeater, or to indicate that the first device has repeater capability. For example, one bit of information may be newly added, where "0" indicates that the current first device is a repeater, or to indicate that the first device connects to the network as a repeater, or to indicate that the first device has repeater capability, and "1" indicates that the current first device is a normal terminal device. Alternatively, multiple bits of information may be newly added. Alternatively, when the newly added field appears, it indicates that the current first device is a repeater, or indicates that it will connect to the network as a repeater, or indicates that the first device has repeater capabilities. The present invention is not limited thereto.

[0119] In some embodiments, when the first network device receives a UE Capability Information message or a UE Assistance Information message sent by the first device, the first network device determines whether second indication information is carried and / or determines the value of the second indication information to determine whether the first device is a repeater or will connect to the network as a repeater.

[0120] Thus, the second indication information can explicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater. When the first network device receives the second indication information, the first network device can identify the first device as a repeater or determine that the first device will connect to the network as a repeater. Thus, a repeater identification process can be realized.

[0121] For example, the third indication information is information indicating a first capability in a UE Capability Information message or a UE Assistance Information message. The first capability is a repeater-specific capability, and includes an existing or newly added bit field (domain) in the UE Capability Information message or the UE Assistance Information message for indicating that the first device has the first capability. For example, the value type of this bit field includes a plurality of capabilities, and at least one capability of the plurality of capabilities is a repeater-specific capability. When the first network device receives the third indication information in the UE Capability Information message or the UE Assistance Information message sent by the first device, if the value of this third indication information is a type corresponding to the repeater-specific capability (first capability), the first network device determines whether the first device is a repeater or connects to the network as a repeater.

[0122] Thus, the third indication information can implicitly identify the first device as a repeater or identify that the first device will connect to the network as a repeater by indicating the first capability inherent to the repeater. When the first network device receives the third indication information, the first network device can identify whether the first device has the first capability inherent to the repeater, and therefore can identify that the first device is a repeater or determine that the first device will connect to the network as a repeater. Thus, a repeater identification process can be realized.

[0123] <Example 2> The embodiment of the present invention provides a device identification method, and will be described from the perspective of a first device. Here, the description of the parts that overlap with the above-mentioned embodiment 1 will be omitted.

[0124] 5 is a schematic diagram of an example of a device identification method according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps:

[0125] Step 501: A first device sends first information to a first network device, the first information indicating that the first device is a repeater, or used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is sent on a first resource, and the first resource is a repeater-specific first resource.

[0126] Thus, the first network device can determine that the first device is a smart repeater or can determine that the first device connects to the network as a smart repeater according to the first information and / or the first resource. Furthermore, the network device can identify and distinguish whether the first device is a repeater or an ordinary terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, thereby realizing flexible deployment of the repeater and reducing the network deployment cost.

[0127] In some embodiments, the first resource includes a random access resource carrying a random access preamble of MSG1 / MSGA in the random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in the random access procedure.

[0128] In some embodiments, the first information comprises: MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or At least one of the second indication information or the third indication information in the capability-related message is included.

[0129] In some embodiments, specific aspects of the first resource and the first information may refer to the first embodiment, and the description thereof will be omitted here.

[0130] In some embodiments, the first device may be a repeater or one or several components or components configured in a repeater.

[0131] In some embodiments, the first device selects / uses a repeater specific random access resource and / or a random access preamble.

[0132] In some embodiments, the first device, when selecting / using the repeater specific random access resource and / or the random access preamble, comprises: The first device uses a repeater-specific random access resource and / or a random access preamble when initializing the random access procedure; or The first device selects a downlink reference signal, and the downlink reference signal is configured with a repeater-specific random access resource and / or a random access preamble; The first device determines, based on the selected downlink reference signal, a repeater-specific random access resource and / or a random access preamble from a plurality of random access resources and / or random access preambles associated with the downlink reference signal.

[0133] In some embodiments, the method may further include the following optional steps:

[0134] Step 502: The first device receives configuration information sent by a network device.

[0135] In some embodiments, the specific aspects of the configuration information may refer to the first embodiment, and the description thereof will be omitted here.

[0136] It should be noted that the above FIG. 5 only shows a schematic diagram of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, some other steps may be added, and some steps may be removed. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 5.

[0137] According to this embodiment, the first network device can determine that the first device is a smart repeater or determine that the first device connects to the network as a smart repeater based on the first information and / or the first resource. Furthermore, the network device can identify and distinguish whether the first device is a repeater or a normal terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, thereby realizing flexible deployment of the repeater and reducing the network deployment cost.

[0138] <Example 3> An embodiment of the present invention provides a device identification device. The device may be, for example, a base station, or one or more elements or components configured in the base station. Descriptions of the same contents as those in the first embodiment are omitted.

[0139] 6 is a schematic diagram of an example of a device identification device according to an embodiment of the present invention. As shown in FIG. 6, the device identification device 600 includes the following units:

[0140] The receiving unit 601 receives the first information transmitted by the first device.

[0141] Here, the first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

[0142] In some embodiments, the apparatus may further include the following optional components:

[0143] The determining unit 602 determines, based on the first information and / or the first resource, that the first device is a repeater or that the first device connects to a network as a repeater.

[0144] In some embodiments, the receiving unit 601 and the determining unit 602 may refer to steps 400 and 401 of the first embodiment, and the first information and / or the first resource may refer to the first embodiment, and the description of the overlapping contents will be omitted.

[0145] In some embodiments, the device identification device 600 may further include the following optional units: A sending unit 603 sends configuration information to the first device.

[0146] Moreover, the specific aspect of the configuration information may refer to the first embodiment, and the description thereof will be omitted here.

[0147] The above-mentioned embodiments are merely illustrative of the present invention, and the present invention is not limited thereto, and appropriate modifications may be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be used in combination.

[0148] It should be noted that the above only describes the components or modules related to the present invention, but the present invention is not limited thereto. The device identification device 600 may further include other components or modules. For specific contents of these components or modules, reference may be made to the related art.

[0149] Further, for convenience of explanation, Fig. 6 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it is clear to those skilled in the art that various related technologies such as bus connections can be used. The above-mentioned various components or modules may be implemented by hardware devices such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0150] According to this embodiment, the first network device can determine that the first device is a smart repeater or determine that the first device connects to the network as a smart repeater based on the first information and / or the first resource. Furthermore, the network device can identify and distinguish whether the first device is a repeater or a normal terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, thereby realizing flexible deployment of the repeater and reducing the network deployment cost.

[0151] <Example 4> An embodiment of the present invention provides a device identification device, the device being, for example, a first device.

[0152] 7 is a schematic diagram of an example of a device identification device according to an embodiment of the present invention. As shown in FIG. 7, the device identification device 700 includes the following units:

[0153] The transmitting unit 701 transmits first information to a first network device, where the first information indicates that the first device is a repeater, or is used to determine that the first device is connected to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

[0154] In some embodiments, the first resource includes a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure.

[0155] In some embodiments, the first information comprises: MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or At least one of the second indication information or the third indication information in the capability-related message is included.

[0156] The specific aspects of the first resource and the first information may refer to the first embodiment, and the description thereof will be omitted here.

[0157] In some embodiments, the first device may be a repeater or one or several components or components configured in a repeater.

[0158] In some embodiments, the device identification device 700 may further include a selector 702 (optional) for selecting / using a repeater specific random access resource and / or a random access preamble.

[0159] The repeater-specific random access resource and / or the random access preamble may refer to Example 1, and the description thereof will be omitted here.

[0160] In some embodiments, the device identification device 700 may further include a receiver 703 (optional) for receiving configuration information sent by the network device.

[0161] Moreover, the specific aspect of the configuration information may refer to the first embodiment, and the description thereof will be omitted here.

[0162] It should be noted that the above FIG. 7 only shows a schematic diagram of an embodiment of the present invention, and the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, some other steps may be added, and some steps may be removed. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 7.

[0163] According to this embodiment, the first network device can determine that the first device is a smart repeater or determine that the first device connects to the network as a smart repeater based on the first information and / or the first resource. Furthermore, the network device can identify and distinguish whether the first device is a repeater or a normal terminal device, so that the network can separately handle the connection, message transmission, identification and authentication of the repeater, thereby realizing flexible deployment of the repeater and reducing the network deployment cost.

[0164] <Example 5> The embodiment of the present invention further provides a communication system, and may refer to FIG. 1. Description of the same contents as those in the first to fourth embodiments will be omitted.

[0165] In some aspects, the communication system 100 may include at least a network device 800, a first device 900, and a terminal device 1000.

[0166] In some embodiments, the network device 800 receives first information transmitted by the first device 900, where the first information indicates that the first device is a repeater, or is used to determine that the first device connects to the network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

[0167] An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto and may be other network devices.

[0168] Fig. 8 is a schematic diagram of a network device according to an embodiment of the present invention. As shown in Fig. 8, the network device 800 may include a processor 810 (e.g., a central processing unit (CPU)) and a memory 820, and the memory 820 is connected to the processor 810. The memory 820 may store various data, and further stores an information processing program 830, and executes the program 830 under the control of the processor 810.

[0169] For example, the processor 810 may be configured to execute a program to implement the device identification method described in the first embodiment.

[0170] Also, as shown in Fig. 8, the network device 800 may further include a transceiver 840 and an antenna 850. The functions of the above members are similar to those of the prior art, and the description thereof will be omitted here. It is not necessary for the network device 800 to include all the units shown in Fig. 8. Also, the network device 800 may further include units not shown in Fig. 8, and may refer to the prior art.

[0171] The embodiment of the present invention further provides a first device. Preferably, the first device is a repeater. However, the present invention is not limited thereto, and the first device may be another device, for example, a terminal device having a function of a repeater.

[0172] Fig. 9 is a schematic diagram of a first device according to an embodiment of the present invention. As shown in Fig. 9, the first device 900 may include a processor 910 and a memory 920, where the memory 920 stores data and programs and is connected to the processor 910. It should be noted that this diagram is exemplary, and other types of structures may be used to supplement or replace this structure to realize communication functions or other functions.

[0173] For example, the processor 910 may be configured to execute a program to implement the device identification method described in the second embodiment.

[0174] As shown in FIG. 9, the first device 900 may further include a communication module 930, an input unit 940, a display 950, and a power supply 960. Here, the functions of the above units are the same as those of the prior art, and the description thereof will be omitted here. It is not necessary for the first device 900 to include all the units shown in FIG. 9. In addition, the first device 900 may further include units not shown in FIG. 9, and may refer to the prior art.

[0175] The embodiment of the present invention further provides a terminal device, which is preferably a normal terminal device different from a repeater, but the present invention is not limited thereto and may be other devices.

[0176] Fig. 10 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in Fig. 10, the terminal device 1000 may include a processor 1010 and a memory 1020, where the memory 1020 stores data and programs and is connected to the processor 1010. It should be noted that this diagram is exemplary, and other types of structures may be used to supplement or replace this structure to realize communication functions or other functions.

[0177] As shown in Fig. 10, the terminal device 1000 may further include a communication module 1030, an input unit 1040, a display 1050, a power supply 1060, and the like. Here, the functions of the above units are similar to those of the prior art, and the description thereof will be omitted here. It is not necessary for the terminal device 1000 to include all the units shown in Fig. 10. In addition, the terminal device 1000 may further include units not shown in Fig. 10, and may refer to the prior art.

[0178] An embodiment of the present invention further provides a computer-readable program, which, when executed in a network device, causes the network device to perform the device identification method described in embodiment 1.

[0179] An embodiment of the present invention further provides a storage medium having a computer-readable program stored thereon, the program, when executed, causing a network device to perform the device identification method described in embodiment 1.

[0180] In an embodiment of the present invention, there is further provided a computer readable program, which, when executed in a first device, causes the first device to perform the device identification method described in embodiment 2.

[0181] An embodiment of the present invention further provides a storage medium having a computer-readable program stored thereon, the program, when executed, causing the first device to perform the device identification method described in embodiment 2.

[0182] The above-mentioned apparatus and method of the present invention may be realized by hardware or by a combination of hardware and software.The present invention relates to a computer readable program which, when executed by a logic unit, causes the logic unit to realize the above-mentioned apparatus or components, or to realize the above-mentioned various methods or steps.The present invention relates to a storage medium for storing the above-mentioned program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0183] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module in the flow of a computer program, or each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be realized by implementing these software modules in hardware, for example, using a field programmable gate array (FPGA).

[0184] The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from the storage medium or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal, or in a memory card inserted in the mobile terminal. For example, if the device (e.g., a mobile terminal) uses a MEGA-SIM card or a large capacity flash memory device with a relatively large capacity, the software module may be stored in the MEGA-SIM card or the large capacity flash memory device.

[0185] One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the drawings may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the drawings may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0186] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes may be made to the present invention without departing from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0187] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. (Appendix 1) 1. A device identification method applied to a first network device, comprising: receiving first information transmitted by a first device; A method, wherein the first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource. (Appendix 2) 2. The method of claim 1, further comprising: determining, based on the first information and / or the first resource, that the first device is a repeater or that the first device connects to a network as a repeater. (Appendix 3) 3. The method of claim 1 or 2, wherein the first resource includes a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure. (Appendix 4) The first information is MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or A method as claimed in any one of appendixes 1 to 3, including at least one of the second indication information or the third indication information in the capability-related message. (Appendix 5) sending configuration information to the first device; The configuration information is Repeater-specific PRACH configuration information, or The method according to claim 3 or 4, including at least one of repeater-specific random access preamble configuration information. (Appendix 6) The repeater-specific PRACH configuration information the number of frequency division multiplexed PRACH transmission occasions in one time instance; the offset in frequency domain of the lowest PRACH transmission occasion relative to PRB0; The index of the PRACH configuration, PRACH subcarrier spacing, The number of SSBs for each RACH occasion, A scaling factor for the PRACH configuration period, or 6. The method of claim 5, including at least one of a frame offset of a PARCH transmission occasion. (Appendix 7) The repeater-specific random access preamble configuration information PRACH root sequence index, The number of preambles for the repeater's contention-based random access; Number of contention-based preambles per SSB in Group A, Number of contention-based preambles per SSB, The total number of preambles for contention-based 4-step random access or 2-step random access on the RACH resource, or The method of claim 5, including at least one of existing random access preamble subset indication information. (Appendix 8) 7. The method of claim 5 or 6, wherein the first resource is determined based on the repeater-specific PRACH configuration information. (Appendix 9) The method according to claim 5 or 7, wherein the first information, a random access preamble, is determined based on random access preamble configuration information specific to the repeater. (Appendix 10) The method according to claim 4 or 5, wherein the related information includes cause indication information or a user identifier (UE ID). (Appendix 11) 11. The method of claim 10, wherein the reason indication information is a predetermined value indicating that the first device is a repeater or that the device connects to a network as a repeater. (Appendix 12) The cause indication information is an establishment cause indication or a restoration cause indication, The establishment cause indication is indicated to the RRC layer of the first device by a higher layer or is determined by the RRC layer of the first device itself; 11. The method of claim 10, wherein the restoration cause indication is indicated to the AS layer of the first device by the higher layer or is determined by the AS layer of the first device itself. (Appendix 13) The user identifier (UE ID) is obtained based on a repeater-specific device ID configured for the repeater by a second network device; The method of claim 10, wherein the repeater-specific device ID is a predetermined identifier indicating that the first device is a repeater or that the first device will connect to a network as a repeater. (Appendix 14) The first message (Msg5) after the random access procedure is completed is an RRC establishment complete message or an RRC recovery complete message; The method of claim 4, wherein the first indication information is used to indicate that the first device is a repeater or is used to indicate that the first device will connect to a network as a repeater. (Appendix 15) The method of claim 4, wherein the capability-related message includes a UE Capability Information message or a UE Assistance Information message. (Appendix 16) The second indication information is used to indicate that the first device is a repeater, or is used to indicate that the first device connects to a network as a repeater, or is used to indicate that the first device has repeater capability; The method described in Supplementary Note 14, wherein the third indication information is information indicating a first capability in a UE Capability Information message or a UE Assistance Information message, and the first capability is a repeater-specific capability. (Appendix 17) 1. A method of device identification applied to a first device, comprising: the first device transmitting first information to a first network device; A method, wherein the first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource. (Appendix 18) 18. The method of claim 17, wherein the first resource includes a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure. (Appendix 19) The first information is MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or The method of claim 16, including at least one of the second instruction information or the third instruction information in the capability-related message. (Appendix 20) 18. The method of claim 17, further comprising the step of the first device selecting / using a repeater-specific random access resource and / or a random access preamble. (Appendix 21) The step of the first device selecting / using a repeater-specific random access resource and / or a random access preamble includes: When initializing the random access procedure, the first device uses a repeater-specific random access resource and / or a random access preamble; or The first device selects a downlink reference signal, the downlink reference signal being configured with a repeater-specific random access resource and / or a random access preamble; 19. The method of claim 18, comprising: determining, based on the selected downlink reference signal, a repeater-specific random access resource and / or a random access preamble from a plurality of random access resources and / or random access preambles associated with the downlink reference signal by the first device. (Appendix 22) receiving configuration information transmitted by the network device; The configuration information is Repeater-specific PRACH configuration information, or 20. The method of claim 18 or 19, including at least one of repeater-specific random access preamble configuration information. (Appendix 23) The repeater-specific PRACH configuration information the number of frequency division multiplexed PRACH transmission occasions in one time instance; the offset in frequency domain of the lowest PRACH transmission occasion relative to PRB0; The index of the PRACH configuration, PRACH subcarrier spacing, The number of SSBs for each RACH occasion, A scaling factor for the PRACH configuration period, or 23. The method of claim 22, including at least one of a frame offset of a PARCH transmission occasion. (Appendix 24) The repeater-specific random access preamble configuration information PRACH root sequence index, The number of preambles for the repeater's contention-based random access; Number of contention-based preambles per SSB in Group A, Number of contention-based preambles per SSB, The total number of preambles for contention-based 4-step random access or 2-step random access on the RACH resource, or 23. The method of claim 22, including at least one of existing random access preamble subset indication information. (Appendix 25) 24. The method of claim 22 or 23, wherein the first resource is determined based on the repeater-specific PRACH configuration information. (Appendix 26) 25. The method according to claim 22 or 24, wherein the first information, a random access preamble, is determined based on random access preamble configuration information specific to the repeater. (Appendix 27) 20. The method of claim 18 or 19, wherein the associated information includes cause indication information or a user identifier (UE ID). (Appendix 28) 28. The method of claim 27, wherein the reason indication information is a predetermined value indicating that the first device is a repeater or that the device connects to a network as a repeater. (Appendix 29) The cause indication information is an establishment cause indication or a restoration cause indication, The establishment cause indication is indicated to the RRC layer of the first device by a higher layer or is determined by the RRC layer of the first device itself; 28. The method of claim 27, wherein the restoration cause indication is indicated to the AS layer of the first device by the higher layer or is determined by the AS layer of the first device itself. (Appendix 30) The user identifier (UE ID) is obtained based on a repeater-specific device ID configured for the repeater by a second network device; 28. The method of claim 27, wherein the repeater-specific device ID is a predetermined identifier indicating that the first device is a repeater or that the first device will connect to a network as a repeater. (Appendix 31) The first message (Msg5) after the random access procedure is completed is an RRC establishment complete message or an RRC recovery complete message; 20. The method of claim 19, wherein the first indication information is used to indicate that the first device is a repeater or is used to indicate that the first device will connect to a network as a repeater. (Appendix 32) The method of claim 19, wherein the capability-related message includes a UE Capability Information message or a UE Assistance Information message. (Appendix 33) The second indication information is used to indicate that the first device is a repeater, or is used to indicate that the first device connects to a network as a repeater, or is used to indicate that the first device has repeater capability; The method described in Supplementary Note 19, wherein the third indication information is information indicating a first capability in a UE Capability Information message or a UE Assistance Information message, and the first capability is a repeater-specific capability. (Appendix 34) A network device comprising: a memory having a computer program stored therein; and a processor, the processor being configured to execute the computer program to implement a method according to any one of claims 1 to 16. (Appendix 35) A first apparatus comprising: a memory having a computer program stored therein; and a processor, the processor configured to execute the computer program to implement a method according to any one of claims 17 to 33. (Appendix 36) A communication system comprising a first device according to claim 35 and / or a network device according to claim 34. (Appendix 37) A device identification device for use in a first network device, comprising: a receiving unit for receiving first information transmitted by a first device; The first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource. (Appendix 38) 38. The apparatus of claim 37, further comprising: a determination unit that determines, based on the first information and / or the first resource, that the first device is a repeater or that the first device connects to a network as a repeater. (Appendix 39) 38. The apparatus of claim 36 or 37, wherein the first resource comprises a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure. (Appendix 40) The first information is MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or 40. The apparatus of any of claims 37 to 39, comprising at least one of the second indication information or the third indication information in the capability-related message. (Appendix 41) a transmitter for transmitting configuration information to the first device; The configuration information is Repeater-specific PRACH configuration information, or 41. The apparatus of claim 39 or 40, further comprising at least one of repeater-specific random access preamble configuration information. (Appendix 42) The repeater-specific PRACH configuration information the number of frequency division multiplexed PRACH transmission occasions in one time instance; the offset in frequency domain of the lowest PRACH transmission occasion relative to PRB0; The index of the PRACH configuration, PRACH subcarrier spacing, The number of SSBs for each RACH occasion, A scaling factor for the PRACH configuration period, or 42. The apparatus of claim 41, further comprising at least one of a frame offset of a PARCH transmission occasion. (Appendix 43) The repeater-specific random access preamble configuration information PRACH root sequence index, The number of preambles for the repeater's contention-based random access; Number of contention-based preambles per SSB in Group A, Number of contention-based preambles per SSB, The total number of preambles for contention-based 4-step random access or 2-step random access on the RACH resource, or 42. The apparatus of claim 41, comprising at least one of existing random access preamble subset indication information. (Appendix 44) 43. The apparatus of claim 41 or 42, wherein the first resource is determined based on the repeater-specific PRACH configuration information. (Appendix 45) The device described in Supplementary Note 41 or 43, wherein the first information, a random access preamble, is determined based on random access preamble configuration information specific to the repeater. (Appendix 46) 42. The apparatus of claim 40 or 41, wherein the associated information includes cause indication information or a user identifier (UE ID). (Appendix 47) 47. The device of claim 46, wherein the reason indication information is a predetermined value indicating that the first device is a repeater or that the device will connect to a network as a repeater. (Appendix 48) The cause indication information is an establishment cause indication or a restoration cause indication, The establishment cause indication is indicated to the RRC layer of the first device by a higher layer or is determined by the RRC layer of the first device itself; 47. The apparatus of claim 46, wherein the restoration cause indication is indicated to the AS layer of the first device by the higher layer or is determined by the AS layer of the first device itself. (Appendix 49) The user identifier (UE ID) is obtained based on a repeater-specific device ID configured for the repeater by a second network device; 47. The device of claim 46, wherein the repeater-specific device ID is a predetermined identifier indicating that the first device is a repeater or that the first device will connect to a network as a repeater. (Appendix 50) The first message (Msg5) after the random access procedure is completed is an RRC establishment complete message or an RRC recovery complete message; 41. The apparatus of claim 40, wherein the first indication information is used to indicate that the first apparatus is a repeater or is used to indicate that the first apparatus is to connect to a network as a repeater. (Appendix 51) 41. The apparatus of claim 40, wherein the capability-related message includes a UE Capability Information message or a UE Assistance Information message. (Appendix 52) The second indication information is used to indicate that the first device is a repeater, or is used to indicate that the first device connects to a network as a repeater, or is used to indicate that the first device has repeater capability; The apparatus described in Supplementary Note 40, wherein the third indication information is information indicating a first capability in a UE Capability Information message or a UE Assistance Information message, and the first capability is a repeater-specific capability. (Appendix 53) A device identification device for application to a first device, comprising: a transmitter for transmitting first information to a first network device; The first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource. (Appendix 54) 54. The apparatus of claim 53, wherein the first resource includes a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure. (Appendix 55) The first information is MSG1 / MSGA random access preamble in the random access procedure, Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in the first message after the random access procedure is completed; or 54. The apparatus of claim 53, including at least one of the second instruction information or the third instruction information in a capability-related message. (Appendix 56) 55. The apparatus of claim 54, further comprising a selection unit for selecting / using a repeater-specific random access resource and / or a random access preamble. (Appendix 57) When initializing the random access procedure, the selector uses a repeater-specific random access resource and / or a random access preamble, or The selection unit selects a downlink reference signal, and the downlink reference signal is configured with a repeater-specific random access resource and / or a random access preamble; The apparatus of claim 55, wherein the selection unit determines, based on the selected downlink reference signal, a repeater-specific random access resource and / or a random access preamble from a plurality of random access resources and / or random access preambles associated with the downlink reference signal. (Appendix 58) a receiving unit for receiving the configuration information transmitted by the network device; The configuration information is Repeater-specific PRACH configuration information, or 56. The apparatus of claim 54 or 55, comprising at least one of repeater-specific random access preamble configuration information. (Appendix 59) The repeater-specific PRACH configuration information the number of frequency division multiplexed PRACH transmission occasions in one time instance; the offset in frequency domain of the lowest PRACH transmission occasion relative to PRB0; The index of the PRACH configuration, PRACH subcarrier spacing, The number of SSBs for each RACH occasion, A scaling factor for the PRACH configuration period, or 59. The apparatus of claim 58, further comprising at least one of a frame offset of a PARCH transmission occasion. (Appendix 60) The repeater-specific random access preamble configuration information PRACH root sequence index, The number of preambles for the repeater's contention-based random access; Number of contention-based preambles per SSB in Group A, Number of contention-based preambles per SSB, The total number of preambles for contention-based 4-step random access or 2-step random access on the RACH resource, or 59. The apparatus of claim 58, comprising at least one of existing random access preamble subset indication information. (Appendix 61) 60. The apparatus of claim 58 or 59, wherein the first resource is determined based on the repeater-specific PRACH configuration information. (Appendix 62) The device described in Addendum 58 or 60, wherein the first information, a random access preamble, is determined based on random access preamble configuration information specific to the repeater. (Appendix 63) 57. The apparatus of claim 55 or 56, wherein the associated information includes cause indication information or a user identifier (UE ID). (Appendix 64) 64. The device of claim 63, wherein the reason indication information is a predetermined value indicating that the first device is a repeater or that the device will connect to a network as a repeater. (Appendix 65) The cause indication information is an establishment cause indication or a restoration cause indication, The establishment cause indication is indicated to the RRC layer of the first device by a higher layer or is determined by the RRC layer of the first device itself; The apparatus of claim 63, wherein the restoration cause indication is indicated to the AS layer of the first device by the higher layer or is determined by the AS layer of the first device itself. (Appendix 66) The user identifier (UE ID) is obtained based on a repeater-specific device ID configured for the repeater by a second network device; 64. The device of claim 63, wherein the repeater-specific device ID is a predetermined identifier indicating that the first device is a repeater or that the first device will connect to a network as a repeater. (Appendix 67) The first message (Msg5) after the random access procedure is completed is an RRC establishment complete message or an RRC recovery complete message; 56. The apparatus of claim 55, wherein the first indication information is used to indicate that the first apparatus is a repeater or is used to indicate that the first apparatus is to connect to a network as a repeater. (Appendix 68) 56. The apparatus of claim 55, wherein the capability-related message includes a UE Capability Information message or a UE Assistance Information message. (Appendix 69) The second indication information is used to indicate that the first device is a repeater, or is used to indicate that the first device connects to a network as a repeater, or is used to indicate that the first device has repeater capability; The apparatus described in Supplementary Note 55, wherein the third indication information is information indicating a first capability in a UE Capability Information message or a UE Assistance Information message, and the first capability is a repeater-specific capability.

Claims

1. A device identification device for application to a first network device, comprising: a receiving unit for receiving first information transmitted by the first device; The first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

2. The apparatus of claim 1 , further comprising: a decision unit that decides, based on the first information and / or the first resource, that the first apparatus is a repeater or that the first apparatus connects to a network as a repeater.

3. 2. The apparatus of claim 1, wherein the first resource comprises a random access resource carrying a random access preamble of MSG1 / MSGA in a random access procedure, or a physical uplink shared resource (PUSCH) carrying MSGA in a random access procedure.

4. The first information is Random access preamble of MSG1 / MSGA in the random access procedure; Related information of the payload carried by MSG3 in the random access procedure or MSGA in the random access procedure; a first indication in a first message after the random access procedure is completed; or The apparatus of claim 1 , further comprising at least one of the second indication information or the third indication information in a capability-related message.

5. a transmitter for transmitting configuration information to the first device; The configuration information is Repeater-specific PRACH configuration information, or The apparatus of claim 3 , further comprising at least one of repeater-specific random access preamble configuration information.

6. The repeater-specific PRACH configuration information the number of frequency division multiplexed PRACH transmission occasions in one time instance; the offset in frequency domain of the lowest PRACH transmission occasion relative to PRB0; PRACH configuration index, PRACH subcarrier spacing, The number of SSBs for each RACH occasion, A scaling factor for the PRACH configuration period, or The apparatus of claim 5 , further comprising at least one of a frame offset of a PARCH transmission occasion.

7. The repeater-specific random access preamble configuration information PRACH root sequence index, The number of preambles for contention-based random access of the repeater; Number of per SSB contention-based preambles in Group A; Per number of SSB contention-based preambles; The total number of preambles for contention-based 4-step random access or 2-step random access in the RACH resource, or The apparatus of claim 5 , further comprising at least one of an existing random access preamble subset indication information.

8. The apparatus of claim 5 , wherein the first resource is determined based on the repeater-specific PRACH configuration information.

9. The device according to claim 5 , wherein the first information, a random access preamble, is determined based on random access preamble configuration information specific to the repeater.

10. The apparatus of claim 4 , wherein the related information includes cause indication information or a user identifier (UE ID).

11. The device according to claim 10, wherein the reason indication information is a predefined value indicating that the first device is a repeater or that the device connects to a network as a repeater.

12. The cause indication information is an establishment cause indication or a restoration cause indication, The establishment cause indication is indicated to the RRC layer of the first device by a higher layer or is determined by the RRC layer of the first device itself; The device according to claim 10, wherein the restoration cause indication is indicated to the AS layer of the first device by the higher layer or is determined by the AS layer of the first device itself.

13. The user identifier (UE ID) is obtained based on a repeater-specific device ID configured for the repeater by a second network device; The device according to claim 10 , wherein the repeater-specific device ID is a predetermined identifier indicating that the first device is a repeater or that the first device will connect to a network as a repeater.

14. The first message (Msg5) after the random access procedure is completed is an RRC establishment complete message or an RRC recovery complete message; The device according to claim 4 , wherein the first indication information is used to indicate that the first device is a repeater or is used to indicate that the first device will connect to a network as a repeater.

15. The apparatus of claim 4 , wherein the capability-related message comprises a UE Capability Information message or a UE Assistance Information message.

16. The second indication information is used to indicate that the first device is a repeater, or is used to indicate that the first device connects to a network as a repeater, or is used to indicate that the first device has repeater capability; The apparatus according to claim 4 , wherein the third indication information is information indicating a first capability in a UE capability information message or a UE assistance information message, and the first capability is a repeater-specific capability.

17. A device identification device for application to a first device, comprising: a transmitter for transmitting the first information to the first network device; The first information indicates that the first device is a repeater, or is used to determine that the first device connects to a network as a repeater, or the first information is repeater-specific first information, or the first information is transmitted on a first resource, and the first resource is a repeater-specific first resource.

18. The apparatus of claim 17, further comprising a selector for selecting / using a repeater specific random access resource and / or a random access preamble.

19. When initializing the random access procedure, the selector uses a repeater-specific random access resource and / or a random access preamble, or The selection unit selects a downlink reference signal, and the downlink reference signal is configured with a repeater-specific random access resource and / or a random access preamble; The apparatus of claim 18, wherein the selector determines, based on a selected downlink reference signal, a repeater-specific random access resource and / or a random access preamble from a plurality of random access resources and / or random access preambles associated with the downlink reference signal.

20. A communication system including a first device and / or a first network device, The first device comprises a device identification device according to any one of claims 17 to 19, A communication system, wherein the first network device comprises a device identification device according to any preceding claim.

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