Information processing methods, relay device, base station, storage medium and program product

Abstract

Disclosed in the embodiments of the present application are information processing methods, a relay device, a base station, a storage medium and a program product. An information processing method applied to a relay device comprises: generating authentication information on the basis of a device identifier of a relay device and an air interface key, wherein the air interface key is used for encryption of air interface transmission (301); sending the authentication information to a base station, so that the base station authenticates the relay device on the basis of the authentication information (302); and receiving an authentication result sent by the base station, and performing information interaction with the base station on the basis of the authentication result (303).

Description

Information processing method, relay device, base station, storage medium and program product

[0001] Cross-reference to related applications

[0002] The present application is based on the Chinese patent application No. 202411292185.8, filed on September 13, 2024, and claims priority to the Chinese patent application No. 202411292185.8, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, in particular to an information processing method, a relay device, a base station, a storage medium and a program product. BACKGROUND

[0004] Traditional repeaters only amplify and forward radio frequency (RF) signals and cannot coordinate with base stations. Therefore, a network-controlled repeater (NCR) that can coordinate with base stations has been proposed recently.

[0005] The NCR includes two functional entities, a forwarding (Fwd, which can be referred to as NCR-Fwd) and a mobile termination (MT, which can be referred to as NCR-MT). The NCR-MT is a functional entity for information interaction between the NCR and a base station (BS). The NCR-Fwd is a functional entity for information forwarding between the NCR and a user terminal (UE) and between the NCR and the BS.

[0006] The management of the current NCR is implemented based on a subscriber identity module (SIM card). This implementation requires the NCR to frequently interact with a core network, thereby affecting the information processing efficiency of the NCR. SUMMARY

[0007] Embodiments of the present application provide an information processing method, a relay device, a base station, a storage medium and a program product, which are designed to reduce the impact of NCR management on the information processing efficiency of the NCR, thereby improving the information processing efficiency of the NCR.

[0008] In a first aspect, an embodiment of the present application provides an information processing method applied to a relay device, the method comprising: generating authentication information according to a device identifier of the relay device and an air interface key, wherein the air interface key is used for encryption of air interface transmission; sending the authentication information to a base station, so that the base station authenticates the relay device based on the authentication information; and receiving an authentication result sent by the base station, and performing information interaction with the base station based on the authentication result.

[0009] In a second aspect, an embodiment of the present application provides an information processing method applied to a base station, the method comprising: receiving authentication information sent by a relay device, wherein the authentication information is generated by the relay device based on a device identifier of the relay device and an air interface key, and the air interface key is used for encryption of air interface transmission; authenticating the relay device based on the authentication information; sending an authentication result to the relay device, and performing information interaction with the relay device based on the authentication result.

[0010] In a third aspect, an embodiment of the present application provides a relay device, comprising: one or more processors; and a memory having one or more programs stored thereon, when the one or more programs are executed by the one or more processors, the one or more processors implement the information processing method of the first aspect.

[0011] In a fourth aspect, an embodiment of the present application provides a base station, comprising: one or more processors; and a memory having one or more programs stored thereon, when the one or more programs are executed by the one or more processors, the one or more processors implement the information processing method of the second aspect.

[0012] In a fifth aspect, an embodiment of the present application provides a computer readable storage medium storing computer executable instructions, the computer executable instructions being used to execute the information processing method of the first aspect or the information processing method of the second aspect.

[0013] In a sixth aspect, an embodiment of the present application provides a computer program product comprising a computer program or computer instructions, the computer program or the computer instructions being stored in a computer readable storage medium, a processor of a communication device reading the computer program or the computer instructions from the computer readable storage medium, and the processor executing the computer program or the computer instructions, so that the communication device executes the information processing method of the first aspect or the information processing method of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide an understanding of the technical solutions of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0015] Fig. 1 is a schematic diagram of an NCR architecture provided by an embodiment of the present application;

[0016] Fig. 2 is a schematic diagram of a system architecture to which the embodiments of the present application can be applied;

[0017] Fig. 3 is a schematic diagram of a flow of an information processing method provided by an embodiment of the present application;

[0018] Fig. 4 is a schematic diagram of a flow of NCR authentication provided by an embodiment of the present application;

[0019] Fig. 5 is a schematic diagram of an OAM channel provided by an embodiment of the present application;

[0020] Fig. 6 is a schematic diagram of a flow of OAM channel establishment provided by an embodiment of the present application;

[0021] Fig. 7 is a schematic diagram of an OAM protocol stack provided by an embodiment of the present application;

[0022] Fig. 8 is a schematic diagram of a flow of an information processing method provided by an embodiment of the present application;

[0023] Fig. 9a is a schematic diagram of a networking architecture of a SIM card-free NCR provided by an embodiment of the present application;

[0024] Fig. 9b is a schematic diagram of a networking architecture of a SIM card-equipped NCR provided by an embodiment of the present application;

[0025] Figs. 10a-1 to 10a-4 are schematic diagrams of information interaction of a SIM card-free NCR provided by an embodiment of the present application;

[0026] Figs. 10b-1 to 10b-3 are schematic diagrams of information interaction of a SIM card-equipped NCR provided by an embodiment of the present application;

[0027] Fig. 11 is a schematic diagram of a structure of a relay device provided by an embodiment of the present application;

[0028] Fig. 12 is a schematic diagram of a structure of a base station provided by an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and do not limit the present application.

[0030] It should be understood that, in the description of the embodiments of the present application, if there is a description to "first", "second" and the like, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features. "At least one" means one or more, and "multiple" means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. Wherein A, B can be singular or plural. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "At least one of the following" and the like means any group of these items, including any group of single items or multiple items. For example, at least one of a, b and c can mean: a, b, c, a and b, a and c, b and c, or a and b and c, wherein a, b, c can be single or multiple.

[0031] In order to facilitate the understanding of the scheme of the embodiments of the present application, the following describes some contents related to the embodiments of the present application:

[0032] The working principle of the traditional relay device is simple, only amplifying and forwarding the RF signal, and the received signal will be amplified in the uplink direction, including interference and noise, so that improper deployment of the relay device will cause a large low noise lift of the network, affecting the capacity and spectrum efficiency. At the same time, the traditional relay device cannot be seen by the base station, so the traditional relay device cannot be coordinated with the base station in version management, alarm management, OAM mechanism and the like.

[0033] Therefore, recently, NCR capable of cooperating with the base station is proposed, which can also be called smart repeater (SR), network control repeater or intelligent repeater. As shown in FIG. 1, the NCR includes two functional entities of NCR-MT and NCR-Fwd, wherein the NCR-MT can also be called MT, MT UE, NCR-MT UE or NCR-UE, which can be used for information interaction between the NCR and the base station; the NCR-Fwd can also be called Fwd or NCR-master, which can be used for information forwarding between the NCR and the UE, between the NCR and the BS.

[0034] The communication system composed of the UE, the NCR and the base station can include three types of communication links, respectively, an access link (A-link), a backhaul link (B-link) and a control link (C-link). For the convenience of understanding, reference can be made to FIG. 1, and notably, in FIG. 1, the B-link between the NCR-Fwd and the base station is marked as NCR-Fwd B-link, the A-link between the NCR-Fwd and the UE is marked as NCR-Fwd A-link, and the A-link between the UE and the base station is marked as UE A-link.

[0035] The NCR-MT can interact with the base station through the C-link for control information, the NCR-Fwd can forward information between the UE and the base station through the NCR-Fwd A-link and the NCR-Fwd B-link, and the UE can directly interact with the base station through the UE A-link for information. It should be noted that the NCR-MT needs to decode the information on the C-link, but the data on the NCR-Fwd A-link and the NCR-Fwd B-link is transparent to the NCR-Fwd, that is, the NCR-Fwd will not decode the data on the two links, but directly beam forward according to the control information to improve the link performance.

[0036] Compared with the conventional relay device, the biggest feature of the NCR is the introduction of the network side control function, so that it can work in a more effective state. Therefore, the NCR supports beam information indication, switch control, and uplink and downlink time slot configuration in the time division duplex (TDD) mode, etc. as follows:

[0037] (1) Beam information indication: mainly used to indicate the forwarding beam of the NCR on the A-link, B-link and C-link mentioned above;

[0038] (2) Uplink and downlink time slot configuration in TDD mode: mainly used to indicate the time slot configuration of the current network of the NCR;

[0039] (3) Switch control: mainly used to control the switch state of the NCR.

[0040] The management of the current NCR is realized based on the SIM card, and this implementation method needs the core network to allocate numbers to the MT UE, involves a lot of maintenance work and traffic billing, etc., and the NCR and the core network also need to open the interactive route, in addition to occupying the air interface bandwidth, frequent interaction with the core network is also needed, thereby affecting the information processing efficiency of the NCR.

[0041] Based on this, the embodiment of the application provides an information processing method, a relay device, a base station, a storage medium and a program product, which can reduce the influence of the information processing efficiency of the NCR in NCR management, thereby improving the information processing efficiency of the NCR.

[0042] FIG. 2 is a system architecture to which the embodiment of the application can be applied. As shown in FIG. 2, the system architecture can include a relay device 21 and a base station 22. The relay device 21 and the base station 22 can interact with each other.

[0043] In the embodiment of the application, the relay device 21 can be any relay device including an MT, such as the NCR described above, but is not limited thereto.

[0044] In some embodiments, the relay device 21 can be a relay device with a SIM card. In some embodiments, the SIM card of the relay device 21 can be in an unused state or an inactive state.

[0045] In other embodiments, the relay device 21 can be a relay device without a SIM card. Without a SIM card can be understood as not installing a SIM card, or not supporting the installation of a SIM card.

[0046] Based on the above system architecture, the information processing method provided by the embodiment of the application is described in detail below.

[0047] Referring to FIG. 3, FIG. 3 is one of flow diagrams of the information processing method provided by the embodiment of the application. The information processing method shown in FIG. 3 can be applied to the relay device 21 in FIG. 2, that is, the information processing method shown in FIG. 3 can be applied to a relay device without a SIM card or a relay device with a SIM card. In some embodiments, when the relay device with a SIM card executes the information processing method shown in FIG. 3, the SIM card of the relay device can be unused or inactive.

[0048] As shown in FIG. 3, the information processing method can include steps 301 to 303.

[0049] Step 301: generating authentication information according to a device identifier of the relay device and an air interface key, wherein the air interface key is used for encryption of air interface transmission.

[0050] The device identifier of the relay device can be used to identify the relay device, and can include at least one of the following information of the relay device: manufacturer name, product model, device serial number. That is, any one or a combination of multiple of the manufacturer name, the product model and the device serial number of the relay device can be used as the device identifier of the relay device.

[0051] It should be noted that in the case where the relay device includes multiple functional entities, the device identifier of the relay device can be the device identifier of part or all of the functional entities of the relay device. Taking the NCR as an example, the device identifier of the NCR can be the device identifier of the NCR-Fwd functional entity, the device identifier of the NCR-MT functional entity, or the set of the device identifier of the NCR-Fwd functional entity and the device identifier of the NCR-MT functional entity.

[0052] The air interface key of the relay device can be used for encryption of air interface transmission of the relay device, that is, for air interface transmission of the relay device, transmission encryption can be performed using the air interface key of the relay device, thereby improving the security of air interface transmission of the relay device.

[0053] In the embodiments of the present application, the relay device can perform self-authentication according to its own device identifier and air interface key. In this way, the authentication of the relay device can not only achieve identity verification of the relay device, but also achieve air interface key verification of the relay device. In this way, the security of air interface transmission of the relay device can be improved.

[0054] The relay device can generate authentication information according to its own device identifier and air interface key, and then perform self-authentication according to the generated authentication information.

[0055] For the generation of authentication information, in some embodiments, the relay device can obtain the authentication information by encrypting its own device identifier and air interface key. In these embodiments, the authentication information is encrypted information. In this way, the leakage probability of the device identifier and the air interface key of the relay device in the transmission process can be reduced, thereby improving the security of information transmission. In other embodiments, the relay device can directly use its own device identifier and air interface key as authentication information. In this way, the acquisition of authentication information can be simplified. However, it can be understood that in these embodiments, the authentication information is unencrypted information.

[0056] In some embodiments, the relay device can generate one authentication information according to its own device identifier and air interface key. In these embodiments, the number of authentication information is 1. In this way, the authentication management of the relay device can be simplified. In other embodiments, the relay device can generate one authentication information according to its own device identifier, and another authentication information according to its own air interface key. In these embodiments, the number of authentication information is 2.

[0057] Step 302: sending the authentication information to the base station to authenticate the relay device based on the authentication information by the base station.

[0058] After generating the authentication information, the relay device can send the authentication information to the base station to enable the base station to authenticate the relay device based on the received authentication information, and obtain the authentication result of the relay device.

[0059] It should be noted that in the embodiments of the present application, after receiving the authentication information sent by the relay device, the base station can directly implement authentication of the relay device based on the authentication information, without the help of the core network. That is, the authentication of the relay device can be completed at the base station in the embodiments of the present application, without the participation of the core network, so that the authentication of the relay device can be separated from the core network, thereby simplifying the authentication management of the relay device and further improving the information processing efficiency of the relay device.

[0060] In some embodiments, the authentication requiring the participation of the core network can be referred to as core network authentication, and the authentication requiring only the participation of the base station without the participation of the core network can be referred to as base station authentication. It can be understood that the base station authentication is adopted when the relay device is authenticated in the embodiments of the present application.

[0061] After receiving the authentication information sent by the relay device, the base station can authenticate the relay device based on the authentication information to obtain an authentication result of the relay device.

[0062] The embodiments of the present application do not limit the authentication manner of the base station authenticating the relay device based on the authentication information, which can be set according to actual needs.

[0063] In some embodiments, the authentication result of the relay device can be obtained by analyzing whether the content included in the authentication information is the device identifier and the air interface key of the relay device. In some embodiments, if the content analyzed by the base station from the authentication information is the device identifier and the air interface key of the relay device, the authentication result of the relay device can be determined as authentication passed; if the content analyzed by the base station from the authentication information is not the device identifier and the air interface key of the relay device, the authentication result of the relay device can be determined as authentication failed.

[0064] In some embodiments, for the encrypted authentication information, the authentication result of the relay device can be obtained by determining whether the authentication information can be decrypted. In some embodiments, if the base station can successfully decrypt the authentication information, the authentication result of the relay device can be determined as authentication passed; if the base station cannot successfully decrypt the authentication information, the authentication result of the relay device can be determined as authentication failed.

[0065] Step 303: receiving the authentication result sent by the base station, and performing information interaction with the base station based on the authentication result.

[0066] After obtaining the authentication result of the relay device, the base station can send the authentication result to the relay device. Then, the relay device and the base station can perform information interaction based on the authentication result of the relay device.

[0067] The authentication result of the relay device is that the authentication is passed, which means that the relay device is legal, and the base station and the relay device can interact information to establish a data radio bearer (DRB), establish a transmission control protocol (TCP) connection, and the like.

[0068] The authentication result of the relay device is that the authentication is failed, which means that the relay device is illegal, and the base station and the relay device interact information to release the relay device, and the like.

[0069] It should be noted that the authentication timing of the relay device is not limited in the embodiments of the present application, and can be set according to actual needs. In some embodiments, the authentication of the relay device can occur after the random access process of the relay device and before the air interface security activation of the relay device. In other embodiments, the authentication of the relay device can also occur in the random access process, and in these embodiments, the base station can also determine whether to allow the relay device to access according to the authentication result of the relay device. For example, if the authentication result of the relay device is that the authentication is not passed, the base station can refuse the access of the relay device; if the authentication result of the relay device is that the authentication is passed, the base station can accept the access of the relay device.

[0070] The embodiments of the present application do not limit the bearing mode of the authentication information and the authentication result, and can be set according to actual conditions. In some embodiments, the authentication information and the authentication result can be carried in a radio resource control (RRC) message, but are not limited thereto.

[0071] In addition, if the number of authentication information is greater than 1, different authentication information can be sent in the same message or by being carried in different messages, and the specific decision can be made according to actual needs, which is not limited in the embodiments of the present application.

[0072] In the information processing method shown in FIG. 3, the relay device can send the authentication information generated based on the device identifier and the air interface key of the relay device to the base station, so that the base station authenticates the relay device based on the authentication information generated by the relay device to obtain the authentication result of the relay device. Then, the relay device can interact information with the base station based on the authentication result of the relay device. It can be seen that the authentication of the relay device can be completed at the base station according to the embodiments of the present application, without the participation of the core network. In this way, the management of the relay device can be simplified, and thus the information processing efficiency of the relay device can be improved.

[0073] In some embodiments, the authentication information is generated according to the device identifier and the air interface key of the relay device, which can be specifically manifested as: the device identifier and the air interface key are encrypted according to the authentication key sent by the base station to generate the authentication information.

[0074] In these embodiments, the base station can actively initiate the encrypted authentication of the relay device by sending an authentication key for generating authentication information to the relay device. After receiving the authentication key sent by the base station, the relay device can use the authentication key to generate authentication information from the device identity and the air interface key of the relay device. In this way, the security of information transmission can be improved by encrypting the transmission of the device identity and the air interface key of the relay device, and the reliability of authentication can be improved.

[0075] The embodiments of the present application do not limit the encryption technology used by the relay device for encrypted authentication, and the asymmetric encryption technology or the symmetric encryption technology can be used, which can be set according to actual needs.

[0076] In some embodiments, the RSA encryption method can be used for the encrypted authentication of the relay device to improve the transmission security of the device identity and the air interface key of the relay device. In these embodiments, the base station can generate a key pair including a public key and a private key, and then send the public key as an authentication key to the relay device. After receiving the public key, the relay device can use the public key to generate authentication information from the device identity and the air interface key of the relay device. After receiving the authentication information, the base station can use the private key to decrypt the authentication information. If the base station can successfully decrypt the authentication information using the private key, it means that the relay device is legitimate, and the authentication result of the relay device can be determined as authentication passed. If the base station cannot successfully decrypt the authentication information using the private key, it means that the relay device is not legitimate, and the authentication result of the relay device can be determined as authentication failed.

[0077] To facilitate the understanding of the authentication method of the relay device in the embodiments of the present application, an example is illustrated in combination with FIG. 4. In FIG. 4, the relay device is NCR, and the base station is gNB. The interaction between the NCR and the gNB can include the following steps:

[0078] Step 400: The gNB sends a system information block (SIB) 1 to the NCR.

[0079] Step 401: The NCR sends a random access preamble (RACH preamble, also referred to as MSG1) to the gNB.

[0080] Step 402: The gNB sends a random access response (RAR, also referred to as MSG2) to the NCR.

[0081] Step 403: The NCR sends a radio resource control setup request (RRCSetupRequest, also referred to as MSG3) to the gNB.

[0082] Step 404: The gNB sends a radio resource control setup (RRCSetup, also called MSG4) to the NCR.

[0083] Step 405: The NCR sends a radio resource control setup complete (RRCSetupComplete, also called MSG5) to the gNB.

[0084] Step 406: The gNB generates a public key and a secret key.

[0085] Step 407: The gNB sends the public key to the NCR.

[0086] Step 408: The NCR encrypts the device identity of the NCR and the air interface key using the public key.

[0087] Step 409: The NCR sends the encrypted device identity of the NCR and the air interface key to the gNB.

[0088] Step 410: The gNB decrypts the device identity of the NCR and the air interface key using the secret key, obtaining an authentication result for the NCR.

[0089] Step 411: The gNB sends the authentication result to the NCR.

[0090] Step 412: The gNB sends a security mode command to the NCR.

[0091] Step 413: The NCR sends a security mode complete to the gNB.

[0092] It should be understood that steps 400 to 405 are steps in the random access procedure of the NCR, steps 406 to 411 are steps in the authentication procedure of the NCR, and steps 412 and 413 are steps in the air interface security activation procedure of the NCR.

[0093] The random access procedure of the NCR is similar to the random access procedure of the UE in the related art, and the main difference is that in the random access procedure of the NCR, the SIB1 can carry NCR supported information (NCR Supported Information) to identify that the gNB supports accessing the NCR; and the Msg5 can carry the NCR-MT identity, so that the base station can identify this UE as an NCR-MT UE.

[0094] The implementation process of steps 406 to 411 is described above, and will not be repeated here. As can be seen from steps 406 to 411, in FIG. 4, the authentication mode of the NCR is gNB authentication, that is, the authentication of the NCR can be completed by the gNB without the participation of the core network, which can simplify the management of the NCR and thus improve the information processing efficiency of the NCR. In addition, the authentication of the NCR is performed after the random access process and before the air interface security activation, and the gNB and the NCR use the RSA encryption mode to transmit the device identifier and the air interface key of the NCR to perform encrypted authentication of the NCR. In this way, the device identifier of the NCR can be encrypted and transmitted before the air interface security activation, thereby reducing the probability of leakage of the device identity of the NCR.

[0095] The information interaction after the authentication of the relay device is described below.

[0096] In some embodiments, the information interaction with the base station based on the authentication result can include: if the authentication result is that the authentication is passed, the relay device establishes a dedicated data radio bearer with the base station; the relay device establishes a management and maintenance channel with the base station on the dedicated data radio bearer; and the relay device transmits messages to the base station through the management and maintenance channel.

[0097] If the authentication of the relay device is passed, it means that the relay device is legal, and the relay device and the base station can transmit messages to each other, for example, the relay device can send uplink messages to the base station, and the base station can send downlink messages to the relay device.

[0098] The embodiments of the present application can introduce a dedicated bearer channel, that is, an OAM channel over DRB (OAM over DRB), between the relay device and the base station. Notably, in the embodiments of the present application, the OAM channel over DRB can be established between the base station and the relay device with a SIM card, or between the base station and the relay device without a SIM card.

[0099] For ease of understanding, refer to FIG. 5. In FIG. 5, the relay device is an NCR, and the base station is a gNB. The NCR includes three functional entities, that is, an MT UE functional entity, a Fwd functional entity, and an OAM functional entity, and the OAM functional entity can interact with the MT UE functional entity and the Fwd functional entity. The gNB includes an OAM functional entity. The OAM functional entity of the NCR and the OAM functional entity of the gNB can establish an OAM channel over DRB for message transmission between the relay device and the base station.

[0100] In the case that the relay device accesses the base station and the authentication is passed, a new dedicated DRB can be established between the relay device and the base station, to establish a bearing channel between the relay device and the base station. The relay device and the base station can first establish a TCP connection on the dedicated DRB, and then establish an OAM channel on the dedicated DRB, so that the relay device and the base station transmit messages through the OAM channel.

[0101] In this embodiment, when transmitting messages between the relay device and the base station, the messages can be carried on the OAM channel based on the dedicated DRB for transmission. In this way, the message transmission problem between the relay device and the base station can be solved, and the reliability of message transmission between the relay device and the base station can be improved.

[0102] Of course, it can be understood that, in some embodiments, the message transmission between the relay device and the base station can also be transmitted through the existing transmission channel, and the embodiments of the present application are not limited thereto.

[0103] The establishment of the OAM channel based on the dedicated DRB is described below.

[0104] When the relay device and the base station establish the bearing channel on the dedicated DRB, the bearing channel can be established according to the MT address (also referred to as MT UE IP address) of the relay device, the Real User Monitoring (RUM) address (also referred to as RUM TCP Server IP address) of the base station, and the Remote Radio Unit ID (RRUID) of the base station. In the embodiments of the present application, the UE IP address of the relay device, the RUM TCP Server IP address, and the RRUID can be collectively referred to as the configuration information of the relay device.

[0105] For the relay device with a SIM card, since the SIM card has a unique identifier, the base station can assign an MT address to the relay device based on the SIM card of the relay device, and then send the configuration information of the relay device to the relay device.

[0106] For the relay device without a SIM card, in some embodiments, the relay device establishes a management and maintenance channel with the base station on the dedicated data radio bearer, which can include: the relay device receives a device information query request sent by the base station; the relay device sends a device information query response to the base station, wherein the device information query response carries a device identifier; the relay device receives a device information configuration request sent by the base station, wherein the device information configuration request carries the configuration information of the relay device, and the configuration information includes the mobile terminal address of the relay device, the Real User Monitoring address of the base station, and the Remote Radio Unit ID of the base station; and the relay device establishes a management and maintenance channel with the base station according to the configuration information on the dedicated data radio bearer.

[0107] In the embodiments, the base station can initiate the information configuration of the relay device actively by sending a device information query request to the relay device.

[0108] After receiving the device information query request, the relay device can send a device information query response carrying the device identifier of the relay device to the base station in response to the device information query request.

[0109] After receiving the device information query response of the relay device, the base station can parse the device identifier of the relay device from the device information query response and generate an instance-id of the relay device according to the device identifier of the relay device. If the number of information in the device identifier of the relay device is 1, the device identifier of the relay device can be directly used as the instance-id of the relay device. If the number of information in the device identifier of the relay device is greater than 1, all the information in the device identifier of the relay device can be used to form the instance-id of the relay device. For example, if the device identifier of the relay device includes the manufacturer name, product model and serial number of the relay device, the instance-id of the relay device can be equal to the manufacturer name + "_" + product model + "_" + device serial number, but is not limited thereto.

[0110] After generating the instance-id of the relay device, the base station can allocate an MT UE IP address according to the instance-id of the relay device, and then send the MT UE IP address, RUM TCP Server IP address and RRUID to the relay device in a device information configuration request (also referred to as a device initial information configuration request). In this way, the base station and the relay device can establish a bearer channel on a dedicated DRB according to the above information.

[0111] In the above manner, the base station can configure the configuration information of the relay device without a SIM card, and thus the establishment of the bearer channel between the base station and the relay device without a SIM card can be realized, thereby ensuring the transmission of messages between the base station and the relay device without a SIM card.

[0112] It should be understood that in some embodiments, the base station can also initiate the configuration of the configuration information of the relay device without a SIM card actively. For example, the relay device can send its device identifier to the base station after authentication, so as to trigger the base station to configure the information of the relay device without a SIM card and send the configuration information to the relay device.

[0113] In addition, in the embodiments of the present application, the configuration of the configuration information of the relay device without a SIM card by the base station can occur before or after the establishment of the dedicated DRB, which can be set according to actual needs, and the embodiments of the present application do not limit the same.

[0114] For the convenience of understanding the establishment of the OAM channel based on the dedicated DRB in the embodiments of the present application, an example is described in combination with FIG. 6. In FIG. 6, the relay device is an NCR of a SIM card, including an NCR-master and an NCR-MT UE; the base station includes a control plane and a RUM, and the RUM is a wireless management function entity of the OAM for the NCR. The interaction between the NCR and the base station is shown in FIG. 6, including the following steps:

[0115] Step 600: The NCR-MT UE accesses the control plane.

[0116] Step 601: The control plane sends an NCR access notification to the RUM.

[0117] Step 602: The RUM sends an NCR information query request (i.e., the aforementioned device information query request) to the control plane.

[0118] Step 603: The control plane forwards the NCR information query request to the NCR-MT UE.

[0119] Step 604: The NCR-MT UE sends an NCR information query response (i.e., the aforementioned device information query response) to the control plane, and the NCR information query response carries a device identifier of the NCR.

[0120] The device identifier of the NCR can be configured to the NCR-MT UE by the NCR-master.

[0121] Step 605: The control plane forwards the NCR information query response to the RUM.

[0122] Step 606: The RUM generates a unique identifier (ncr-instance-id) of the NCR according to the device identifier of the NCR carried in the NCR information query response.

[0123] Step 607: The RUM allocates an MT UE IP according to the ncr-instance-id.

[0124] Step 608: The RUM sends an NCR initial information configuration request (ncrInitialInfoConfiguration, i.e., the aforementioned device information configuration request) to the control plane, and the NCR initial information configuration request carries the MT UE IP, a RUM TCP Server IP and an RRUID.

[0125] Step 609: The control plane forwards the NCR initial information configuration request to the NCR-MT UE.

[0126] The NCR-MT UE parses its own IP, and performs step 610.

[0127] Step 610: The NCR-MT UE forwards the NCR initial information configuration request to the NCR-master.

[0128] The NCR-master obtains the RUM TCP Server IP and the RRUID assigned to itself.

[0129] Step 611: A dedicated DRB (may also be referred to as a management plane bearer) is established.

[0130] Step 612: The NCR-master and the RUM establish a TCP connection.

[0131] Step 613: The NCR-master and the RUM establish an OAM channel.

[0132] The uplink and downlink messages between the base station and the NCR can be transmitted on this channel.

[0133] It should be noted that the implementation process of FIG. 6 can refer to the foregoing related description, and will not be described again.

[0134] As shown in FIG. 6, the base station can perform information configuration on the NCR without a SIM card based on the device identifier of the NCR reported by the NCR, and then the base station and the NCR without a SIM card can establish an OAM channel based on a dedicated DRB based on the configuration information of the NCR, and transmit messages through the OAM channel. In this way, the message transmission between the base station and the relay device without a SIM card can be ensured.

[0135] For the OAM channel based on the dedicated DRB, the protocol stack used by the present embodiment is not limited.

[0136] In some embodiments, the OAM channel based on the dedicated DRB can use an existing protocol stack.

[0137] In other embodiments, a new protocol stack, an OAM protocol stack, can be defined for the OAM channel based on the dedicated DRB. In this way, the format of the message transmitted by the OAM channel based on the dedicated DRB can be distinguished from other messages, so that the relay device and the base station can quickly distinguish the message transmitted by the OAM channel based on the dedicated DRB, and the efficiency of message processing can be improved. In these embodiments, the message is transmitted through a management and maintenance protocol stack; wherein the management and maintenance protocol stack at least includes: a management and maintenance application (OAM APP) layer; the management and maintenance application layer is used to add a source address and a destination address to the message. The address can also be replaced by an Internet Protocol (IP) address.

[0138] It can be understood that for the uplink message sent by the relay device, the source address is the relay device address, and the destination address is the base station address. The relay device can use the OAM APP layer of the OAM protocol stack to add the source address of the message as the relay device address and add the destination address of the message as the address of the base station in the uplink message. For the downlink message sent by the relay device, the source address is the base station address, and the destination address is the relay device address. The base station can use the OAM APP layer of the OAM protocol stack to add the source address of the message as the base station address and add the destination address of the message as the relay device address in the downlink message.

[0139] In this way, by adding the source address and the destination address in the message through the OAM APP layer of the OAM protocol stack, accurate transmission of the message can be realized, and the reliability of message transmission can be improved.

[0140] The embodiments of the present application do not limit the specific structure of the OAM protocol stack. In some embodiments, in addition to the OAM APP layer, the OAM protocol stack can also include at least one of the following: a TCP layer, an IP layer, and an access network protocol layer (AN Protocol layers). The specific structure of the AN Protocol layers is determined by the protocol, for example, in a 5G network, the AN Protocol layers can include a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical (PHY) layer.

[0141] It should be noted that for the protocol layer in the OAM protocol stack, if it is an existing protocol layer, the implementation process can be referred to related technologies, which will not be described here. In addition, the embodiments of the present application do not limit the setting order of each protocol layer in the OAM protocol stack, which can be set based on actual needs.

[0142] In one example, as shown in FIG. 7, the OAM protocol stack can include, from top to bottom, the OAM APP layer, the TCP layer, the IP layer, the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, and the PHY layer. For the OAM protocol stack shown in FIG. 7: assuming that the uplink message is sent from the MT UE of the NCR to the RUM of the gNB, the source IP address of the uplink message is: NCR-UE IP address, and the target IP address is: RUM IP address. After the uplink message is sent from the MT UE, it is processed by the base station MAC and RLC layers, decrypted by the PDCP, and the PDCP header and SDAP header are removed, and the IP message sent by the MT UE through the OAM APP layer is obtained, and the gNB delivers the IP message to the RUM.

[0143] Assuming that the downlink packet is sent from the RUM of the gNB to the MT UE of the NCR, the source IP address of the downlink packet is: the RUM IP address, and the destination IP address is: the NCR-UE IP address. After the gNB receives the IP packet, the gNB matches the destination IP address and finds the instance, i.e., the MT UE, according to the information saved by the instance, adds a downlink SDAP header and a downlink PDCP header, and sends the packet to the air interface for encryption, and then the packet is sent to the UE through the air interface.

[0144] For the OAM channel based on the dedicated DRB, embodiments of the present application do not limit the type of information transmitted. In some embodiments, the management and maintenance channel can support, but is not limited to, transmitting at least one of the following information: switch state information of the time-frequency domain of the relay device, management and maintenance information, version management information, and device management information. In some embodiments, the switch state information of the time-frequency domain of the relay device can be the switch state (ON-OFF) information of the Fwd time domain and frequency domain of the relay device. The version management information and the device management information can be the version management information and the device management information of the Fwd or MT of the relay device. That is, the interaction between the base station and the relay device described above can be carried on the OAM channel, so that the transmission of the OAM channel information can be standardized.

[0145] The MT UE of the relay device selects a cell before initiating access. Embodiments of the present application do not limit the way in which the MT UE of the relay device selects a cell.

[0146] In some embodiments, the relay device can search for a cell with the best signal strength and supporting access of the relay device according to the configured frequency point priority in the supported frequency band, and select the cell as a host cell.

[0147] In some embodiments, the method can further include: receiving a cell list sent by the base station; and selecting a cell according to the cell list; wherein the cell list includes at least one of the following: a cell list allowing access of the relay device, and a cell list prohibiting access of the relay device.

[0148] In these embodiments, the base station can determine, in advance, a cell allowing access of the relay device and a cell prohibiting access of the relay device in a cell of the base station, and then add the cell allowing access of the relay device to a cell list allowing access of the relay device (which can also be referred to as a white list cell list), and add the cell prohibiting access of the relay device to a cell list prohibiting access of the relay device (which can also be referred to as a black list cell list).

[0149] It can be understood that if the relay device requests to access a cell allowing the relay device to access, the base station can accept the access of the relay device; if the relay device requests to access a cell prohibiting the relay device to access, the base station can reject the access of the relay device. Based on this, in order to improve the access success rate of the relay device, the base station can send at least one of the above-mentioned white list cell list and black list cell list to the relay device, so that the relay device performs cell selection according to the received cell list.

[0150] If the relay device receives the white list cell list, it can select a cell from the white list cell list as a host cell to access. If the relay device receives the black list cell list, it can avoid the cells in the black list cell list and select a cell from the cells outside the black list cell list as a host cell to access. In this way, the success rate of the relay device access can be improved.

[0151] It should be noted that the above-mentioned cell selection scheme according to the cell list sent by the base station can be used for the first access of the relay device to the base station, or can be used for subsequent access of the relay device to the base station after the first access to the base station. The specific application can be determined based on actual needs, and the embodiments of the present application do not limit this.

[0152] In addition, after the relay device successfully accesses the base station, in some embodiments, the same frequency neighbor cell signal can be judged. If the difference between the neighbor cell signal strength and the host cell signal strength is less than a certain threshold, it can be reported to the network management as an alarm, so that the station personnel adjusts and optimizes the antenna pointing of the relay device, thereby improving the signal strength of the relay device. In some embodiments, considering that the relay device will not move, the relay device can not perform mobility related measurement, and accordingly, the base station can not issue mobility related measurement configuration to the relay device, thereby reducing the power consumption of the device and reducing the signaling overhead.

[0153] Referring to FIG. 8, FIG. 8 is a flow diagram of an information processing method according to an embodiment of the present application. The information processing method shown in FIG. 8 can be applied to the base station 22 in FIG. 2. As shown in FIG. 8, the information processing method can include steps 801 to 803.

[0154] Step 801: receiving authentication information sent by a relay device, wherein the authentication information is generated by the relay device based on its device identifier and air interface key, and the air interface key is used for encryption of air interface transmission;

[0155] Step 802: authenticating the relay device based on the authentication information;

[0156] Step 803: sending an authentication result to the relay device and performing information interaction with the relay device based on the authentication result.

[0157] In some embodiments, before receiving the authentication information sent by the relay device, the method further comprises: sending an authentication key to the relay device; wherein the authentication key is used to generate the authentication information.

[0158] In some embodiments, before sending the authentication key to the relay device, the method further comprises: generating a key pair, the key pair comprising a public key and a private key, wherein the authentication key is the public key; authenticating the relay device based on the authentication information, comprising: decrypting the authentication information according to the private key to obtain an authentication result of the relay device.

[0159] In some embodiments, based on the authentication result, the method further comprises: if the authentication result is that the authentication is passed, establishing a dedicated data radio bearer between the base station and the relay device; establishing a management and maintenance channel between the base station and the relay device on the dedicated data radio bearer; and transmitting a message between the base station and the relay device through the management and maintenance channel.

[0160] In some embodiments, the message is transmitted through a management and maintenance protocol stack; wherein the management and maintenance protocol stack comprises at least a management and maintenance application layer; and the management and maintenance application layer is configured to add a source address and a destination address to the message.

[0161] In some embodiments, the management and maintenance channel is established between the base station and the relay device on the dedicated data radio bearer, comprising: sending a device information query request to the relay device by the base station; receiving a device information query response sent by the relay device by the base station, wherein the device information query response carries a device identifier; generating a unique identifier of the relay device based on the device identifier of the relay device by the base station; allocating a mobile terminal address of the relay device based on the unique identifier of the relay device by the base station; sending a relay device information configuration request to the relay device by the base station, wherein the relay device information configuration request carries configuration information of the relay device, and the configuration information comprises the mobile terminal address, a real user monitoring address of the base station, and a remote radio frequency unit identifier of the base station; and establishing the management and maintenance channel between the base station and the relay device according to the configuration information on the dedicated data radio bearer.

[0162] In some embodiments, the management and maintenance channel supports transmission of at least one of the following information: switch state information of the relay device in the time-frequency domain, management and maintenance information, version management information, and device management information.

[0163] In some embodiments, the method further comprises: sending a cell list to the relay device, wherein the cell list is used for cell selection by the relay device; and the cell list comprises at least one of the following: a cell list that the relay device is allowed to access, and a cell list that the relay device is prohibited to access.

[0164] It should be noted that the method embodiment of FIG. 8 can be implemented as an implementation of a base station corresponding to the method embodiment of FIG. 3. For details, refer to the related description in the method embodiment of FIG. 3, and the same beneficial effects can be achieved. To avoid repetition, no further description is given here.

[0165] In the information processing method shown in FIG. 8, after receiving the authentication information generated by the relay device based on the device identifier and the air interface key, the base station can authenticate the relay device based on the authentication information generated by the relay device to obtain an authentication result of the relay device. Then, the base station can interact with the relay device based on the authentication result of the relay device. As can be seen, the authentication of the relay device can be completed at the base station in the embodiments of the present application, without the participation of the core network. In this way, the management of the relay device can be simplified, and thus the information processing efficiency of the relay device can be improved.

[0166] It should be noted that the various embodiments introduced in the embodiments of the present application can be implemented in combination with each other without conflict, or can be implemented independently, and the embodiments of the present application do not limit this.

[0167] As can be seen from the foregoing, the embodiments of the present application can achieve the following functions: the base station performs local authentication on the relay device (including but not limited to RSA encryption algorithm); and the base station and the relay device can transmit messages through OAM based on a dedicated DRB. Notably, the relay device can be a relay device with a SIM card or a relay device without a SIM card.

[0168] To better understand the implementation of the embodiments of the present application, the following describes the embodiments of the present application in combination with FIGS. 9a to 10b-3. FIG. 9a is a schematic diagram of a networking architecture of an NCR without a SIM card according to the embodiments of the present application, FIG. 9b is a schematic diagram of a networking architecture of an NCR with a SIM card according to the embodiments of the present application, FIGS. 10a-1 to 10b-3 are schematic diagrams of information interaction of an NCR without a SIM card according to the embodiments of the present application, and FIGS. 10b-1 to 10b-3 are schematic diagrams of information interaction of an NCR with a SIM card according to the embodiments of the present application.

[0169] As shown in FIG. 9a and FIG. 9b, for the NCR without SIM card and the NCR with SIM card: the OAM of both can establish an OAM channel with the OAM of the base station for message transmission between the base station and the NCR; and for the authentication of the NCR, as shown in FIG. 9a, the authentication of the NCR without SIM card can be implemented only through the base station without the participation of the core network, i.e., the authentication mode of the NCR without SIM card is the base station authentication, as shown in FIG. 9b, the authentication of the NCR with SIM card can involve the core network, i.e., the authentication mode of the NCR with SIM card can be the core network authentication. In addition, in FIG. 9a and FIG. 9b, the OAM APP layer in the OAM protocol stack is referred to as the OAM client in the NCR and the OAM server in the base station.

[0170] For the networking architecture of the NCR without SIM card shown in FIG. 9a, the information interaction of the NCR without SIM card is shown in FIG. 10a-1 to 10a-4. In FIG. 10a-1 to 10a-4, the base station is gNB, the gNB includes gNB-Distributed Unit (DU), gNB-Central Unit (CU), OAM and Service Provider Address (SPA)-DU. In some embodiments, the gNB-DU includes SPA, User Plane Architecture (UPA)-DU and Control Plane Architecture (CPA)-DU, the gNB-CU includes CPA-CU and UPA-CU, and the OAM includes ITRN. The relay device is NCR.

[0171] As shown in FIG. 10a-1 to 10a-4, the information interaction of the NCR can include the following steps:

[0172] Step 1000: The CPA-DU sends SIB1 to the NCR.

[0173] Step 1001: The NCR sends RRCSetupRequest to the UPA-DU.

[0174] Step 1002: The UPA-DU forwards the RRCSetupRequest to the CPA-DU.

[0175] Step 1003: The CPA-DU sends InitialULRRCMessage to the CPA-CU.

[0176] Step 1004: The CPA-CU sends RRCSetup to the CPA-DU.

[0177] Step 1005: The CPA-DU forwards the RRCSetup to the UPA-DU.

[0178] Step 1006: The UPA-DU forwards the RRCSetup to the NCR.

[0179] Step 1007: The NCR sends the RRCSetupComplete to the UPA-DU.

[0180] Step 1008: The UPA-DU forwards the RRCSetupComplete to the CPA-CU.

[0181] Step 1009: The CPA-CU sends the NCR OAM request (NcrOamRequest) to the ITRN.

[0182] Step 1010: The ITRN generates an asymmetric public key and private key.

[0183] Step 1011: The ITRN sends the NCR information request (ncrInformationRequest) to the CPA-CU, and the ncrInformationRequest carries the public key.

[0184] Step 1012: The CPA-CU forwards the ncrInformationRequest to the UPA-DU.

[0185] Step 1013: The UPA-DU forwards the ncrInformationRequest to the NCR.

[0186] Step 1014: The NCR encrypts the device identifier and the air interface key of the NCR using the public key.

[0187] Step 1015: The NCR sends the NCR uplink information report (ncrULInformationReprot) to the UPA-DU, and the ncrULInformationReprot carries the encrypted device identifier and air interface key of the NCR.

[0188] Step 1016: The UPA-DU forwards the ncrULInformationReprot to the CPA-CU.

[0189] Step 1017: The CPA-CU forwards the ncrULInformationReprot to the ITRN.

[0190] Step 1018: The ITRN sends the NCR OAM security key notification (NcrOamSecurityKeyNotify) to the CPA-CU.

[0191] Step 1019: The CPA-CU sends a UE Context Setup Request (UEContextSetupRequest) to the CPA-DU.

[0192] Step 1020: The CPA-DU sends a Security Mode Command to the UPA-DU.

[0193] Step 1021: The UPA-DU forwards the Security Mode Command to the NCR.

[0194] Step 1022: The NCR sends a Security Mode Complete to the UPA-DU.

[0195] Step 1023: The UPA-DU forwards the Security Mode Complete to the CPA-CU.

[0196] Step 1024: The CPA-CU sends a NCR OAM Security Key Notify Ack (NcrOamSecurityKeyNotifyAck) to the ITRN.

[0197] Step 1025: The ITRN sends a NCR Initial Info Configuration Request to the CPA-CU, which carries the MT UE IP, RUM TCP Server IP and RRU ID.

[0198] Step 1026: The CPA-CU forwards the NCR Initial Info Configuration Request to the UPA-DU.

[0199] Step 1027: The UPA-DU forwards the NCR Initial Info Configuration Request to the NCR.

[0200] Step 1028: The NCR sends a NCR Initial Info Configuration Response to the UPA-DU.

[0201] Step 1029: The UPA-DU forwards the NCR Initial Info Configuration Response to the CPA-CU.

[0202] Step 1030: The CPA-CU forwards the NCR Initial Info Configuration Response to the ITRN.

[0203] If the NCR Initial Info Configuration is successful, the DRB setup can continue; if the NCR Initial Info Configuration fails, the CPA-CU can directly initiate release, so that the NCR re-enters the Idle state.

[0204] Step 1031: The ITRN sends a NCR OAM Response (NcrOamResponse) to the CPA-CU.

[0205] Step 1032: The CPA-CU sends a UE capability enquiry (UECapabilityEnquriy) to the NCR.

[0206] Step 1033: The NCR sends UE capability information (UECapabilityInformation) to the CPA-CU.

[0207] Step 1034: The CPA-CU sends a UE context modification request (UEContextModifyRequest) to the CPA-DU.

[0208] Step 1035: The CPA-CU sends a UE context setup request (UEContextSetupRequest) to the UPA-CU.

[0209] Step 1036: The CPA-DU forwards the UEContextModifyRequest to the UPA-DU.

[0210] Step 1037: The CPA-DU forwards the UEContextModifyRequest to the SPA-DU.

[0211] Step 1038: The CPA-DU sends a UE context modification response (UEContextModifyResponse) to the CPA-CU.

[0212] Step 1039: The CPA-CU sends an RRC reconfiguration (RRCReconfiguration) to the NCR.

[0213] Step 1040: The NCR sends an RRC reconfiguration complete (RRCReconfigurationComplete) to the CPA-CU.

[0214] Step 1041: The UPA-CU sends a route setup request to the ITRN.

[0215] Step 1042: The ITRN sends a route setup response to the UPA-CU.

[0216] It should be noted that the implementation procedures of FIGS. 10a a-1 to 10a-4 can be referred to the foregoing related descriptions and related technologies, which will not be described herein again.

[0217] As shown in FIGS. 10a-a1 to 10a-4, for the NCR without a SIM card, on one hand, the base station can authenticate it in an RSA encryption mode, which does not need the participation of the core network, can simplify the management of the relay device, and improve the information processing efficiency of the relay device. On the other hand, the base station can configure the NCR without a SIM card based on the device identifier reported by the NCR, and then the base station and the NCR without a SIM card can establish an OAM channel based on a dedicated DRB based on the configuration information of the NCR, and transmit messages through the OAM channel, so as to ensure the message transmission between the base station and the relay device without a SIM card.

[0218] For the networking architecture of the NCR with a SIM card shown in FIG. 9b, the information interaction of the NCR with a SIM card can be as shown in FIGS. 10b-1 to 10b-3. In FIGS. 10b-1 to 10b-3, the base station is gNB, and the gNB includes SPA, UPA, CPA and OAM. The relay device is NCR.

[0219] As shown in FIGS. 10b-1 to 10b-3, the information interaction of the NCR can include the following steps:

[0220] Step 1101: The NCR sends MSG1 to the SPA.

[0221] Step 1102: The SPA sends MSG2 to the NCR.

[0222] Step 1103: The NCR sends MSG3 to the UPA.

[0223] Step 1104: The UPA forwards MSG3 to the CPA.

[0224] Step 1105: The CPA sends MSG4 to the NCR.

[0225] Step 1106: The NCR sends MSG5 to the CPA.

[0226] Step 1107: The CPA sends an initial UE message (Initial UE Message) to the 5GC.

[0227] Step 1108: The 5GC sends a non-access layer identity request (NAS Identity Request) to the CPA.

[0228] Step 1109: The CPA forwards the NAS Identity Request to the NCR.

[0229] Step 1110: NCR sends NAS Identity Response to CPA.

[0230] Step 1111: 5GC sends NAS Authentication Request to CPA.

[0231] Step 1112: CPA forwards NAS Authentication Request to NCR.

[0232] Step 1113: NCR sends NAS Authentication Response to CPA.

[0233] Step 1114: 5GC sends NAS Security Mode Command to CPA.

[0234] Step 1115: CPA forwards NAS Security Mode Command to NCR.

[0235] Step 1116: NCR sends NAS Security Mode Complete to CPA.

[0236] Step 1117: CPA sends DRB config to NCR.

[0237] Step 1118: CPA sends DRB config cmp to NCR.

[0238] Step 1119: CPA sends NCR Indication to OAM.

[0239] NCR Indication can be carried over Signaling Radio Bearer (SRB) 1 before DRB IP configuration is successful.

[0240] Step 1120: OAM sends NCR Info request (i.e. the aforementioned device information query request) to CPA.

[0241] Step 1121: CPA forwards NCR Info request to NCR.

[0242] Step 1122: NCR-MT obtains the manufacturer name, product model and device serial number of the NCR-master configuration.

[0243] Step 1123: The NCR sends an NCR information report (NCR Info report, i.e., the aforementioned device information query response) to the CPA, and the NCR Info report carries the manufacturer name, product model and device serial number of the NCR-master configuration.

[0244] Step 1124: The CPA forwards the NCR Info report to the OAM.

[0245] Step 1125: The OAM generates an ncr-instance-id according to the manufacturer name, product model and device serial number of the NCR-master configuration, and assigns the NCR-MT IP.

[0246] Step 1126: The OAM sends an IP information configuration (IP Info config, i.e., the aforementioned device information configuration request) to the CPA, and the IP Info config carries the MT UE IP, RUM TCP Server IP and RRUID.

[0247] Step 1127: The CPA forwards the IP Info config to the NCR.

[0248] Step 1128: The NCR-MT parses its own IP and transmits the data to the NCR-master, and the NCR-master obtains the RUM TCP Server IP and RRUID.

[0249] Step 1129: The NCR sends an IP information configuration completion (IP Info config cmp) to the CPA.

[0250] It should be noted that the implementation process of FIGS. 10b-1 to 10b-3 can be referred to the aforementioned related description and related technologies, and will not be repeated here.

[0251] As shown in FIGS. 10b-1 to 10b-3, for the NCR with a SIM card, the authentication mode can be a core network authentication mode, but it is worth noting that in the embodiments of the present application, the NCR with a SIM card can also establish an OAM channel based on a dedicated DRB between the base station, which is used for message transmission between the NCR and the base station, so that the message transmission problem between the relay device and the base station can be solved, and the reliability of message transmission between the relay device and the base station can be improved.

[0252] It should be noted that the NCR represents the relay device and the gNB represents the base station in FIG. 1, FIG. 4 to FIG. 7, FIG. 9a to FIG. 10b-3 are only examples and should not be construed as a limitation of the present application. The execution subject performing each step in FIG. 4, FIG. 6, FIG. 10a-1 to FIG. 10a-4 and FIG. 10b-1 to FIG. 10b-3 is only an example, and in other embodiments, other functional entities capable of completing the corresponding functions can also be used to complete, and the present application does not limit this.

[0253] In addition, it should be understood that the naming of each network element included in FIG. 1, FIG. 4 to FIG. 7, FIG. 9a to FIG. 10b-3 is only a name, and the name does not constitute a limitation on the function of the network element itself. In 5G networks and future other networks, the above-mentioned various network elements can also be other names, and the present application does not specifically limit this. For example, in a 6G network, part or all of the above-mentioned various network elements can continue to use the terminology in 5G, or can be other names, etc., which are uniformly described here and will not be described below.

[0254] As shown in FIG. 11, the embodiment of the present application also discloses a relay device 1100, comprising: at least one processor 1110; at least one memory 1120 for storing at least one program; and when the at least one program is executed by the at least one processor 1110, the information processing method applied to the relay device is realized.

[0255] As shown in FIG. 12, the embodiment of the present application also discloses a base station 1200, comprising: at least one processor 1210; at least one memory 1220 for storing at least one program; and when the at least one program is executed by the at least one processor 1210, the information processing method applied to the base station is realized.

[0256] In addition, the embodiment of the present application also discloses a computer readable storage medium, wherein computer executable instructions are stored, and the computer executable instructions are used to execute the information processing method in any of the preceding embodiments.

[0257] In addition, the embodiment of the present application also discloses a computer program product, comprising a computer program or computer instructions, the computer program or computer instructions are stored in a computer readable storage medium, and the processor of the communication device reads the computer program or computer instructions from the computer readable storage medium. The processor executes the computer program or computer instructions, so that the communication device executes the information processing method in any of the preceding embodiments.

[0258] As will be appreciated by one of ordinary skill in the art, all or some of the steps, systems, and techniques disclosed herein can be embodied in software, firmware, hardware, and / or suitable combination thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a micro-processing unit, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer readable media, which can comprise computer storage media (or non-transitory media), and communication media (or transitory media). As is well known to those of ordinary skill in the art, computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media.

[0259] The above description is implemented for the embodiments of the present application, but the present application is not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. These equivalent modifications or replacements are included in the scope defined by the claims of the present application.

Claims

1. An information processing method applied to a relay device, the method comprising: generating authentication information according to a device identifier of the relay device and an air interface key, wherein the air interface key is used for encryption of air interface transmission; sending the authentication information to a base station, so that the base station authenticates the relay device based on the authentication information; receiving an authentication result sent by the base station, and performing information interaction with the base station based on the authentication result.

2. The method of claim 1, wherein, The generating of the authentication information according to the device identifier of the relay device and the air interface key comprises: encrypting the device identifier and the air interface key according to an authentication key sent by the base station, to generate the authentication information.

3. The method of claim 1, wherein, The information interaction with the base station based on the authentication result comprises: if the authentication result is that the authentication is passed, establishing a dedicated data radio bearer between the relay device and the base station; establishing a management and maintenance channel between the relay device and the base station on the dedicated data radio bearer; and performing packet transmission between the relay device and the base station through the management and maintenance channel.

4. The method of claim 3, wherein, The packet is transmitted through a management and maintenance protocol stack; The management and maintenance protocol stack at least comprises a management and maintenance application layer; The management and maintenance application layer is configured to add a source address and a destination address to the packet.

5. The method of claim 3, wherein, The establishing of the management and maintenance channel between the relay device and the base station on the dedicated data radio bearer comprises: receiving, by the relay device, a device information query request sent by the base station; sending, by the relay device, a device information query response to the base station, wherein the device information query response carries the device identifier; receiving, by the relay device, a device information configuration request sent by the base station, wherein the device information configuration request carries configuration information of the relay device, and the configuration information comprises a mobile terminal address of the relay device, a real user monitoring address of the base station, and a remote radio frequency unit identifier of the base station; establishing, by the relay device, the management and maintenance channel with the base station according to the configuration information on the dedicated data radio bearer.

6. The method of claim 3, wherein, The management and maintenance channel supports transmission of at least one of the following information: switch state information of the relay device in a time-frequency domain, management and maintenance information, version management information, and device management information.

7. The method of claim 1, further comprising: receiving a cell list sent by the base station; performing cell selection according to the cell list; wherein the cell list comprises at least one of the following: a cell list that allows the relay device to access, and a cell list that prohibits the relay device to access.

8. An information processing method applied to a base station, the method comprising: receiving authentication information sent by a relay device, wherein the authentication information is generated by the relay device based on a device identifier of the relay device and an air interface key, and the air interface key is used for encryption of air interface transmission; authenticating the relay device based on the authentication information; sending an authentication result to the relay device, and performing information interaction with the relay device based on the authentication result.

9. The method of claim 8, wherein, Before the receiving of the authentication information sent by the relay device, the method further comprises: sending an authentication key to the relay device. The authentication key is used to generate the authentication information.

10. The method of claim 9, wherein, Before the authentication key is sent to the relay device, the method further includes: generating a key pair, the key pair including a public key and a private key, wherein the authentication key is the public key; authenticating the relay device based on the authentication information includes: decrypting the authentication information according to the private key to obtain an authentication result of the relay device.

11. The method of claim 8, wherein, based on the authentication result, the base station and the relay device perform information interaction, including: if the authentication result is that the authentication is passed, the base station and the relay device establish a dedicated data radio bearer; the base station establishes a management and maintenance channel with the relay device on the dedicated data radio bearer; the base station transmits a packet to the relay device through the management and maintenance channel.

12. The method of claim 11, wherein, The packet is transmitted through a management and maintenance protocol stack; The management and maintenance protocol stack at least includes a management and maintenance application layer; The management and maintenance application layer is used to add a source address and a destination address to the packet.

13. The method of claim 11, wherein, The base station establishes a management and maintenance channel with the relay device on the dedicated data radio bearer, including: the base station sends a device information query request to the relay device; the base station receives a device information query response sent by the relay device, wherein the device information query response carries the device identifier; the base station generates a unique identifier of the relay device based on the device identifier of the relay device; the base station allocates a mobile terminal address of the relay device based on the unique identifier of the relay device; the base station sends a relay device information configuration request to the relay device, wherein the relay device information configuration request carries configuration information of the relay device, and the configuration information includes the mobile terminal address, a real user monitoring address of the base station and a remote radio frequency unit identifier of the base station; the base station establishes a management and maintenance channel with the relay device according to the configuration information on the dedicated data radio bearer.

14. The method of claim 11, wherein, The management and maintenance channel supports transmission of at least one of the following information: switch state information of the relay device in time and frequency domain, management and maintenance information, version management information and device management information.

15. The method of claim 9, further comprising: sending a cell list to the relay device, wherein the cell list is used for cell selection by the relay device; and the cell list includes at least one of the following: a cell list that allows the relay device to access, and a cell list that prohibits the relay device to access.

16. A relay device, comprising: at least one processor; at least one memory configured to store at least one program; when at least one of the programs is executed by at least one of the processors, the information processing method of any one of claims 1 to 7 is implemented.

17. A base station, comprising: at least one processor; at least one memory configured to store at least one program; when at least one of the programs is executed by at least one of the processors, the information processing method of any one of claims 8 to 15 is implemented.

18. A computer-readable storage medium storing computer-executable instructions, wherein, The computer executable instructions are used to execute the information processing method in any one of claims 1 to 15.

19. A computer program product comprising computer programs or computer instructions, wherein, The computer program or the computer instructions are stored in a computer readable storage medium, and a processor of a communication device reads the computer program or the computer instructions from the computer readable storage medium, and the processor executes the computer program or the computer instructions, so that the communication device executes the information processing method in any one of claims 1 to 15.

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