Random access method, relay device and network device

Abstract

The application provides a random access method, a relay device and a network device, and relates to the technical field of communication. The method comprises the following steps: receiving a random access request message sent by a terminal; sending a first request message to a network device in response to the random access request message; sending a radio resource control (RRC) connection establishment request to the network device in the case of receiving a first response sent by the network device in response to the first request message, wherein the first response comprises a target cell radio network temporary identifier allocated by the network device for the terminal; and sending a random access success message to the terminal in the case of receiving an RRC connection establishment completion message sent by the network device in response to the RRC connection establishment request. Even if there is an obstruction between the network device and the terminal, the random access of the terminal to the network device can be completed through the relay device as a relay, and the communication quality between the terminal and the network device can be improved.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a random access method, a relay device, and a network device. Background Technology

[0002] Random Access (RA) is a fundamental function of cellular systems that enables terminals and network devices to establish connections.

[0003] Currently, during random access, the terminal directly interacts with the network device to achieve access. However, if there are obstructions or other interference elements between the terminal and the base station during random access, it will affect the communication quality between the terminal and the network device, resulting in poor communication quality. Summary of the Invention

[0004] This invention provides a random access method, a relay device, and a network device to solve the problem of poor communication quality in existing systems.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] In a first aspect, embodiments of the present invention provide a random access method, executed by a relay device, the method comprising:

[0007] Receive random access request messages sent by the terminal;

[0008] In response to the random access request message, a first request message is sent to the network device, the first request message being used to request the network device to allocate a temporary cell radio network identifier to the terminal;

[0009] Upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) connection establishment request is sent to the network device, wherein the first response includes a target cell radio network temporary identifier allocated by the network device for the terminal.

[0010] Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, a random access success message is sent to the terminal.

[0011] Secondly, embodiments of the present invention provide another random access method, executed by a network device, the method comprising:

[0012] The network device receives a first request message sent by a relay device, the first request message being used to request the network device to allocate a temporary identifier for the cell radio network to the terminal;

[0013] In response to the first request message, a first response is sent to the relay device, the first response including the target cell radio network temporary identifier allocated by the network device to the terminal;

[0014] Receive the Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response;

[0015] In response to the RRC connection establishment request, an RRC connection establishment complete message is sent to the relay device. The RRC connection establishment complete message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment complete message.

[0016] Thirdly, embodiments of the present invention provide a relay device, the relay device comprising:

[0017] The first receiving module is used to receive random access request messages sent by the terminal;

[0018] The first sending module is configured to send a first request message to the network device in response to the random access request message, wherein the first request message is used to request the network device to allocate a temporary identifier for the cell radio network for the terminal.

[0019] The second sending module is configured to send a Radio Resource Control (RRC) connection establishment request to the network device upon receiving a first response from the network device in response to the first request message. The first response includes a target cell radio network temporary identifier allocated by the network device to the terminal.

[0020] The third sending module is used to send a random access success message to the terminal upon receiving an RRC connection establishment completion message sent by the network device in response to the RRC connection establishment request.

[0021] Fourthly, embodiments of the present invention provide a network device, the network device comprising:

[0022] The second receiving module is used to receive a first request message sent by the relay device, wherein the first request message is used to request the network device to allocate a temporary identifier for the cell wireless network to the terminal.

[0023] The fourth sending module is used to send a first response to the relay device in response to the first request message, wherein the first response includes a target cell wireless network temporary identifier allocated by the network device to the terminal;

[0024] The third receiving module is used to receive the Radio Resource Control (RRC) connection establishment request sent by the relay device in the event of receiving the first response;

[0025] The fifth sending module is used to send an RRC connection establishment completion message to the relay device in response to the RRC connection establishment request. The RRC connection establishment completion message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment completion message.

[0026] Fifthly, embodiments of the present invention provide a relay device, including a transceiver and a processor.

[0027] The transceiver is used for:

[0028] Receive random access request messages sent by the terminal;

[0029] In response to the random access request message, a first request message is sent to the network device, the first request message being used to request the network device to allocate a temporary cell radio network identifier to the terminal;

[0030] Upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) connection establishment request is sent to the network device, wherein the first response includes a target cell radio network temporary identifier allocated by the network device for the terminal.

[0031] Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, a random access success message is sent to the terminal.

[0032] Sixthly, embodiments of the present invention provide a network device, including a transceiver and a processor.

[0033] The transceiver is used for:

[0034] The network device receives a first request message sent by a relay device, the first request message being used to request the network device to allocate a temporary identifier for the cell radio network to the terminal;

[0035] In response to the first request message, a first response is sent to the relay device, the first response including the target cell radio network temporary identifier allocated by the network device to the terminal;

[0036] Receive the Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response;

[0037] In response to the RRC connection establishment request, an RRC connection establishment complete message is sent to the relay device. The RRC connection establishment complete message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment complete message.

[0038] In a seventh aspect, embodiments of the present invention provide a relay device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the random access method described in the first aspect.

[0039] Eighthly, embodiments of the present invention provide a network device, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the random access method described in the second aspect above.

[0040] In a ninth aspect, embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, it implements the steps of the random access method described in the first aspect; or when the computer program is executed by a processor, it implements the steps of the random access method described in the second aspect.

[0041] In this embodiment of the invention, a relay device can be configured as a relay between the terminal and the base station. The relay device receives a random access request message sent by the terminal, sends a first request message to the network device, receives a first response from the network device, and then sends an RRC connection establishment request to the network device. Upon receiving an RRC connection establishment success message from the network device, the relay device returns a random access success message to the terminal, completing the random access process. Even if there is an obstruction between the network device and the terminal, the relay device can act as a relay to complete the random access from the terminal to the network device, thus improving the communication quality between the terminal and the network device. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is one of the flowcharts of a random access method provided in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of an intelligent reflective surface provided in an embodiment of the present invention;

[0045] Figure 3 This is an application scenario diagram of a random access method provided in an embodiment of the present invention;

[0046] Figure 4This is one of the schematic diagrams of a protocol stack in a relay device provided in an embodiment of the present invention;

[0047] Figure 5 This is the second schematic diagram of a protocol stack in a relay device provided in an embodiment of the present invention;

[0048] Figure 6 This is a second flowchart of a random access method provided in an embodiment of the present invention;

[0049] Figure 7 This is the third flowchart of a random access method provided in an embodiment of the present invention;

[0050] Figure 8 This is a schematic diagram of the content carried by a MAC CE according to an embodiment of the present invention;

[0051] Figure 9 This is a schematic diagram of the LCID field in an uplink SCH provided in an embodiment of the present invention;

[0052] Figure 10 This is a schematic diagram of a 2-byte eLCID field in an uplink SCH provided by an embodiment of the present invention;

[0053] Figure 11 This is a schematic diagram of a 1-byte eLCID field in an uplink SCH provided by an embodiment of the present invention;

[0054] Figure 12 This is a schematic diagram of the contents of a C-RNTI provided in an embodiment of the present invention;

[0055] Figure 13 This is a schematic diagram of the LCID field in a downlink SCH provided in an embodiment of the present invention;

[0056] Figure 14 This is a schematic diagram of a 2-byte eLCID field in a downlink SCH provided in an embodiment of the present invention;

[0057] Figure 15 This is a schematic diagram of a 1-byte eLCID field in a downlink SCH provided by an embodiment of the present invention;

[0058] Figure 16 This is the fourth flowchart of a random access method provided in an embodiment of the present invention;

[0059] Figure 17 This is a schematic diagram of the structure of a relay device provided in an embodiment of the present invention;

[0060] Figure 18 This is a schematic diagram of the structure of a network device provided in an embodiment of the present invention;

[0061] Figure 19This is a schematic diagram of the structure of a relay device provided in an embodiment of the present invention;

[0062] Figure 20 This is a schematic diagram of the structure of a network device provided in an embodiment of the present invention. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] See Figure 1 , Figure 1 This is a flowchart of a random access method provided in an embodiment of the present invention. The method is executed by a relay device and includes:

[0065] Step 101: Receive the random access request message sent by the terminal.

[0066] It should be noted that a relay device is a device that connects a terminal and a network device. It can transmit data with both the terminal and the network device. This relay device can be a reflective device, such as an Intelligent Reflecting Surface (IRS) or a Reconfigurable Intelligent Surface (RIS). For example... Figure 2 As shown, a smart reflector is a novel type of intelligent passive surface that utilizes metamaterials to control the phase of the surface in real time, thereby controlling the reflection angle of the incident wave and forming reflected beams in different directions. Smart reflectors are characterized by low cost and low power consumption, thus eliminating the need for complex RF (radio frequency) circuits to relay signals.

[0067] like Figure 3 As shown, a terminal can use a relay device as a relay to achieve random access to network devices. The terminal can directly transmit signals from the relay device. First, the terminal can send a random access request message to request random access to the network device. The relay device, acting as a relay, can receive the random access request message sent by the terminal.

[0068] Step 102: In response to the random access request message, send a first request message to the network device. The first request message is used to request the network device to allocate a temporary identifier for the cell radio network to the terminal.

[0069] After receiving a random access request message, the relay device can send a first request message to the network device to request the network device to allocate a Cell Radio Network Temporary Identifier (C-RNTI) for the terminal.

[0070] In one example, the first request message is a first MAC PDU (Protocol Data Unit), which includes a MAC CE (Control Element), and the MAC CE includes a first identifier.

[0071] In one example, the type of MAC CE is indicated by a reserved value in the Logical Channel Identifier field in the header of the first MAC PDU. The Logical Channel Identifier can be either LCID (Logical Channel Identifier) ​​or eLCID (Extended Logical Channel Identifier).

[0072] Step 103: Upon receiving a first response from the network device in response to the first request message, send a Radio Resource Control (RRC) connection establishment request to the network device.

[0073] The first response includes the target cell wireless network temporary identifier assigned to the terminal by the network device.

[0074] It should be noted that after receiving a random access request message, the relay device can assign a first identifier for use by the relay device to the terminal (for example, if the relay device is an IRS, it can be denoted as IRS_UE_ID). As an example, this first identifier can be a terminal identifier used internally by the relay device (with a relatively short length, such as 8 bits). The relay device can use a two-level identifier method, which includes the relay device's identifier (IRS_ID if the relay device is an IRS) and the first identifier assigned to the terminal by the relay device. For example, the preset high p bits (p is an integer greater than 1) of the two-level identifier are the relay device's identifier, and the remaining q bits (q is an integer greater than 1) of the two-level identifier are the first identifier assigned to the terminal by the relay device; or the first identifier can be an identifier with a unified number for the relay device (which may be relatively long), and the relay device directly uses this first identifier when interacting with network devices.

[0075] The first request message may include the first identifier. In response to the first request message, the network device may allocate a temporary identifier for the target cell's wireless network to the terminal and return a first response to the relay device, which includes the temporary identifier for the target cell's wireless network. In the relay device, a mapping relationship (i.e., a correspondence between the first identifier and the temporary identifier for the target cell's wireless network can be established.)

[0076] Step 104: Upon receiving the RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, send a random access success message to the terminal.

[0077] After receiving an RRC (Radio Resource Control) connection establishment request from a relay device, the network device can return an RRC connection establishment completion message to the relay device, indicating that the RRC connection is successful. The relay device can then send a random access success message to the terminal, completing the terminal's random access. Since the establishment of the RRC connection is achieved through interaction between the relay device and the network device after the terminal sends the random access request message, it is completely transparent to the terminal, achieving a terminal-insensitive random access process.

[0078] In this embodiment, a relay device can be configured as a relay between the terminal and the base station. The relay device receives a random access request message from the terminal, sends a first request message to the network device, receives a first response from the network device, and then sends an RRC connection establishment request to the network device. Upon receiving an RRC connection establishment success message from the network device, the relay device returns a random access success message to the terminal, completing the random access process. Even if there is an obstruction between the network device and the terminal, the relay device can act as a relay to complete the random access from the terminal to the network device, thus improving the communication quality between the terminal and the network device.

[0079] In one embodiment, after receiving a first response from the network device in response to the first request message, and before sending a Radio Resource Control (RRC) connection establishment request to the network device, the method further includes:

[0080] Upon receiving a first response from the network device in response to the first request message, a random access response is sent to the terminal.

[0081] The receiving terminal sends an RRC connection request message after receiving the random access response;

[0082] Sending a Radio Resource Control (RRC) connection establishment request to the network device includes:

[0083] Upon receiving an RRC connection request message, an RRC connection establishment request is sent to the network device.

[0084] In this embodiment, after receiving the first response, the relay device can send a random access response to the terminal to allocate resources. After receiving the random access response, the terminal can send an RRC connection request message to request the establishment of an RRC connection. Upon receiving the RRC connection request message, the relay device sends an RRC connection establishment request to the network device to request the establishment of the RRC connection. After receiving the RRC connection establishment request from the relay device, the network device can return an RRC connection establishment completion message to the relay device, indicating that the RRC connection is successful. The relay device can then send a random access success message to the terminal, completing the terminal's random access. By using a relay device to achieve random access from the terminal to the network device, even if there is an obstruction between the network device and the terminal, the terminal can communicate with the network device through the relay device, improving communication quality.

[0085] In one embodiment, random access can employ a two-step RACH (Random Access Channel). In this case, the random access request message can be MsgA (message A), and the RRC connection establishment completion message can be MsgB (message B). The RRC connection establishment request can include a first identifier assigned to the terminal by the relay device, a temporary identifier of the target cell's radio network, and the random access request message. Alternatively, random access can employ a four-step RACH. In this case, the random access request message can be Msg1 (message 1), the random access response can be Msg2 (message 2), the RRC connection request message can be Msg3 (message 3), and the RRC connection establishment completion message can be Msg4 (message 4). The RRC connection establishment request can include a first identifier assigned to the terminal by the relay device, a temporary identifier of the target cell's radio network, and the RRC connection request message.

[0086] In one embodiment, the relay device includes a first MAC (Media Access Control) function and a second MAC function;

[0087] The random access request message sent by the receiving terminal includes:

[0088] The first MAC function receives random access request messages sent by the terminal;

[0089] In response to the random access request message, a first request message is sent to the network device, including:

[0090] In response to the random access request message, the first MAC function sends a first access request to the second MAC function;

[0091] The second MAC function responds to the first access request by sending a first request message to the network device.

[0092] That is, the relay device receives the random access request message sent by the terminal through the first MAC function, sends the first access request to the second MAC function, and sends the first request message to the network device through the second MAC function. In other words, the relay device communicates with the terminal through the first MAC function and communicates with the network device through the second MAC function. The first MAC function and the second MAC function communicate with each other inside the relay device.

[0093] It should be noted that, as Figure 4 As shown, a relay device can possess both relay device-terminal protocol stack functionality and relay device-network device protocol stack functionality through a single MAC function. Figure 5 As shown, the MAC function of a relay device can be divided into a first MAC function and a second MAC function. The first MAC function has a relay device-network device protocol stack function, and the second MAC function has a relay device-terminal protocol stack function. That is, the protocol stack function of the relay device is divided into two categories: relay device-terminal protocol stack function and relay device-network device protocol stack function. The relay device-terminal protocol stack completes the handshake information, connection management, and connection synchronization functions between the relay device and the network device. From the perspective of the network device, the relay device itself interacts with the network device as a terminal. The relay device-network device protocol stack receives the measurement information from the terminal and, under the control of the network device, implements the beamforming function of the terminal, thereby enabling the terminal to exchange uplink and downlink data with the network through the relay device. This function provides air interface services to the user terminal.

[0094] Among them, PDCP stands for Packet Data Convergence Protocol, SDAP stands for Service Data Adaptation Protocol, and RLC stands for Radio Link Control.

[0095] Taking the relay device as IRS, the terminal as UE (User Equipment), and the network device as base station (BS) as an example, the IRS-UE protocol stack includes two parts: MAC and PHY (Physical Layer, also known as L1, i.e., layer one).

[0096] IRS-UE-MAC (short for the MAC protocol in the IRS-UE protocol stack): This is a peer protocol function entity responsible for IRS connection management in the MAC layer of the base station (denoted as BS-MAC). It is responsible for establishing, modifying, maintaining, and releasing the connection with the base station, as well as control and measurement reporting functions for the IRS Panel.

[0097] IRS-UE-PHY (short for PHY protocol in the IRS-UE protocol stack): The PHY layer of the base station is responsible for the function of IRS connection management (denoted as: NB-PHY), which is a peer protocol function entity. It is responsible for processing the physical signals for interaction between the IRS and the base station.

[0098] IRS-BS-MAC (short for the MAC protocol in the IRS-BS protocol stack): Responsible for the management of UEs within the IRS coverage area, including functions such as identification information, UE location information, air interface signal shaping information, and measurement processing reported by the UE. The NB-MAC function, which is the MAC function for UE scheduling and management in the base station, is a peer entity and an extension of the NB-MAC function.

[0099] IRS-BS-PHY (short for PHY protocol in IRS-BS protocol stack): responsible for receiving and transmitting air interface signals of UE within the IRS coverage area, including UE beamforming, beam re-beamforming or beamforming correction functions.

[0100] In one embodiment, upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) connection establishment request is sent to the network device, including:

[0101] Upon receiving a first response from the network device, the second MAC function sends a second response to the first MAC function, the second response including the target cell's temporary radio network identifier.

[0102] The second MAC function receives the target request sent by the first MAC function after receiving the second response. The target request is a random access request message or an RRC connection request message.

[0103] The second MAC function responds to the target request by sending an RRC connection establishment request to the network device.

[0104] It is understandable that random access can employ a two-step RACH, in which case the target request is a random access request message. Random access can also employ a four-step RACH, in which case the target request is an RRC connection request message, requesting the establishment of an RRC connection. When the second MAC function receives the target request sent by the first MAC function after receiving the second response, the second MAC function responds to the target request by sending an RRC connection establishment request to the network device. That is, in this embodiment, the relay device communicates with the terminal through the first MAC function and with the network device through the second MAC function, realizing random access for the terminal. This separates the MAC functions used for communication with the terminal and with the network device, thereby improving the flexibility of the random access process.

[0105] In one embodiment, upon receiving an RRC connection establishment complete message from the network device in response to an RRC connection establishment request, a random access success message is sent to the terminal, including:

[0106] When the second MAC function receives an RRC connection establishment complete message from the network device, it sends an RRC connection establishment complete message to the first MAC function.

[0107] Upon receiving the RRC connection establishment completion message from the second MAC function, the first MAC function sends a random access success message to the terminal.

[0108] Specifically, the relay device communicates with the network device via the second MAC function, receives the RRC connection establishment completion message sent by the network device in response to the RRC connection establishment request, and forwards it to the first MAC. The first MAC then responds to the RRC connection establishment completion message and sends a random access success message to the terminal, completing the terminal's random access process. In this embodiment, the relay device communicates with the terminal via the first MAC function and with the network device via the second MAC function, enabling random access for the terminal. This separates the MAC functions used for terminal communication and network device communication, improving the flexibility of the random access process.

[0109] In one embodiment, upon receiving an RRC connection establishment complete message from the network device in response to an RRC connection establishment request, a random access success message is sent to the terminal, including:

[0110] Upon receiving an RRC connection establishment completion message from the network device via the first MAC function, a random access success message is sent to the terminal.

[0111] In this embodiment, the network device can directly send an RRC connection establishment complete message to the first MAC function. After receiving the RRC connection establishment complete message from the network device, the first MAC function can send a random access successful message to the terminal, thus enabling random access for the terminal. This reduces the forwarding process through the second MAC function and improves transmission efficiency.

[0112] See Figure 6 , Figure 6 This is a flowchart of a random access method provided in an embodiment of the present invention, executed by a network device. The method includes:

[0113] Step 601: Receive a first request message sent by the relay device. The first request message is used to request the network device to allocate a temporary identifier for the cell wireless network to the terminal.

[0114] Step 602: In response to the first request message, send a first response to the relay device, the first response including the target cell wireless network temporary identifier assigned by the network device to the terminal;

[0115] Step 603: Receive the Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response;

[0116] Step 604: In response to the RRC connection establishment request, send an RRC connection establishment complete message to the relay device;

[0117] The RRC connection establishment complete message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment complete message.

[0118] In one embodiment, the first request message is a first MAC protocol data unit (PDU), which includes a MAC control unit (CE). The MAC CE includes a first identifier assigned to the terminal by the relay device when the relay device receives a random access request message sent by the terminal.

[0119] In one embodiment, the type of MAC CE is indicated by a reserved value in the Logical Channel Identifier (LCID) field in the header of the first MAC PDU.

[0120] The process of the above method will be specifically described below with a specific embodiment. Taking the relay device as IRS, the network device as BS, the terminal as UE, the first MAC function as IRS-BS-MAC, and the second MAC function as IRS-UE-MAC as an example.

[0121] like Figure 7 As shown, taking the two-step RACH process as an example, the process of implementing random access is as follows:

[0122] After receiving the MsgA message sent by the UE, the IRS-BS-MAC function sends a first access request to the IRS-UE-MAC to request the base station to allocate a C-RNTI to the UE;

[0123] IRS-BS-MAC assigns a first identifier for use by the IRS to the UE, denoted as IRS_UE_ID;

[0124] The IRS-UE-MAC sends a C-RNTI request message (i.e., the first request message) to the BS, and the IRS-UE-MAC carries IRS_UE_DI in the first request message it sends;

[0125] The first request message can be a first MAC PDU, which includes a MAC CE, and the MAC CE includes a first identifier. For example... Figure 8 The diagram shows the contents carried by the MAC CE. The IRS_UE_ID has a length of n bits, or it can be m bytes, where m = 1, 2, ..., N, and N is a positive integer.

[0126] The type of the MAC CE can be identified using a reserved value in the LCID field, such as... Figure 9 The diagram shows the LCID field in the uplink (UL) SCH (Synchronization Channel). Values ​​35-44 are reserved, and any one of these reserved values ​​identifies the type of MAC CE. For example, the type of MAC CE can be identified as the type of MAC CE that transmits the first identifier. Taking RIS as an example, the first identifier could be the RIS UE ID, thus identifying the type of MAC CE as the type that transmits the RIS UE ID. Alternatively, both LCID and eLCID can be used to identify the type of the MAC CE. For example, for an uplink (UL) transmitted MAC CE, if eLCID is used, a 1-byte (one-octet eLCID) or 2-byte (two-octet eLCID) available eLCID value is selected to identify the MAC CE. Figure 10-11 As shown, according to the protocol, the MAC CE type is determined by the LCID (an extended eLCID value of 33 or 34) and the eLCID.

[0127] After receiving the first request message, the BS sends a first response to the IRS-UE-MAC, which carries the target C-RNTI, such as Figure 12 The image shown is a schematic diagram of the contents of C-RNTI.

[0128] The length of IRS_UE_ID is n bits, or it can be m bytes, where m = 1, 2, ..., N.

[0129] C-RNTI is the UE ID (terminal identifier) ​​assigned by the BS to the UE.

[0130] In addition, the type of the MAC CE can be identified by LCID, or by a combination of LCID and eLCID, such as a MAC CE sent in the downlink (DL).

[0131] like Figure 13 The diagram shows the LCID field in the downlink SCH, using values ​​35-44 as reserved values. Any of these reserved values ​​identifies the type of MAC CE. If eLCID is used, a 1-byte (one-octet eLCID) or 2-byte (two-octet eLCID) eLCID value is selected to identify the MAC CE. Figure 14-15 As shown, according to the protocol, the MAC CE type is determined by the LCID (an extended eLCID value of 33 or 34) and the eLCID.

[0132] After receiving the first response, IRS-UE-MAC sends a second response to IRS-BS-MAC. IRS-BS-MAC then sends a target request to IRS-UE-MAC. After receiving the target request, IRS-UE-MAC sends an RRC connection establishment request to the BS, receives the RRC connection establishment complete message returned by the BS, and forwards it to IRS-BS-MAC. After receiving the RRC connection establishment complete message, IRS-BS-MAC sends MsgB to the UE to complete the UE's random access.

[0133] like Figure 16 As shown, taking the four-step RACH process as an example, the process of implementing random access is as follows:

[0134] After receiving the first response, IRS-UE-MAC sends a second response to IRS-BS-MAC. After receiving the second response, IRS-BS-MAC sends Msg2 to the UE and receives Msg3 returned by the UE. Then, IRS-BS-MAC sends a target request to IRS-UE-MAC. After receiving the target request, IRS-UE-MAC sends an RRC connection establishment request to the BS, receives the RRC connection establishment complete message returned by the BS, and forwards it to IRS-BS-MAC. After receiving the RRC connection establishment complete message, IRS-BS-MAC sends Msg4 to the UE, completing the UE's random access.

[0135] See Figure 17 , Figure 17 This is a schematic diagram of the structure of a relay device provided in an embodiment of the present invention, as shown below. Figure 17 As shown, the relay device 1700 includes:

[0136] The first receiving module 1701 is used to receive random access request messages sent by the terminal;

[0137] The first sending module 1702 is used to send a first request message to the network device in response to a random access request message. The first request message is used to request the network device to allocate a temporary identifier for the cell wireless network to the terminal.

[0138] The second sending module 1703 is used to send a Radio Resource Control (RRC) connection establishment request to the network device when it receives a first response from the network device in response to the first request message. The first response includes a target cell radio network temporary identifier allocated by the network device to the terminal.

[0139] The third sending module 1704 is used to send a random access success message to the terminal upon receiving an RRC connection establishment completion message sent by the network device in response to the RRC connection establishment request.

[0140] In one embodiment, the relay device further includes:

[0141] The sixth sending module, configured to send a Radio Resource Control (RRC) connection establishment request to the network device after receiving a first response from the network device in response to the first request message, further includes:

[0142] The seventh sending module is used to send a random access response to the terminal upon receiving a first response from the network device in response to the first request message.

[0143] The fourth receiving module is used to receive the RRC connection request message sent by the terminal after receiving the random access response;

[0144] Sending a Radio Resource Control (RRC) connection establishment request to the network device includes:

[0145] Upon receiving an RRC connection request message, an RRC connection establishment request is sent to the network device.

[0146] In one embodiment, the RRC connection establishment request includes a first identifier assigned to the terminal by the relay device, a temporary identifier of the target cell radio network, and a target message. The RRC connection establishment completion message includes the first identifier, and the target message is a random access request message or an RRC connection request message.

[0147] In one embodiment, the relay device includes a first Media Access Control Protocol (MAC) function and a second MAC function;

[0148] The random access request message sent by the receiving terminal includes:

[0149] Receive random access request messages sent by the terminal through the first MAC function;

[0150] The first sending module includes:

[0151] The first sending submodule is used to send a first access request to the second MAC function in response to a random access request message via the first MAC function.

[0152] The second sending submodule is used to respond to the first access request through the second MAC function and send a first request message to the network device.

[0153] In one embodiment, the second transmitting module includes:

[0154] The third sending submodule is used to send a second response to the first MAC function when the second MAC function receives the first response sent by the network device. The second response includes the target cell wireless network temporary identifier.

[0155] The first receiving submodule is used to receive a target request sent by the first MAC function after receiving the second response through the second MAC function. The target request is a random access request message or an RRC connection request message.

[0156] The fourth sending submodule is used to respond to the target request via the second MAC function and send an RRC connection establishment request to the network device.

[0157] In one embodiment, the third transmitting module includes:

[0158] The fifth sending submodule is used to send an RRC connection establishment complete message to the first MAC function when the second MAC function receives an RRC connection establishment complete message sent by the network device.

[0159] The sixth sending submodule is used to send a random access success message to the terminal when the first MAC function receives the RRC connection establishment completion message sent by the second MAC function.

[0160] In one embodiment, upon receiving an RRC connection establishment complete message from the network device in response to an RRC connection establishment request, a random access success message is sent to the terminal, including:

[0161] Upon receiving an RRC connection establishment completion message from the network device via the first MAC function, a random access success message is sent to the terminal.

[0162] In one embodiment, the first request message is a first MAC protocol data unit (PDU), the first MAC PDU includes a MAC control unit (CE), and the MAC CE includes a first identifier.

[0163] In one embodiment, the type of MAC CE is indicated by a reserved value in the logical channel identifier field in the header of the first MAC PDU.

[0164] See Figure 18 , Figure 18 This is a schematic diagram of the structure of a network device provided in an embodiment of the present invention, such as... Figure 18 As shown, network device 1800 includes:

[0165] The second receiving module 1801 is used to receive a first request message sent by the relay device. The first request message is used to request the network device to allocate a temporary identifier for the cell wireless network to the terminal.

[0166] The fourth sending module 1802 is used to send a first response to the relay device in response to the first request message. The first response includes a target cell wireless network temporary identifier assigned to the terminal by the network device.

[0167] The third receiving module 1803 is used to receive a Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response;

[0168] The fifth sending module 1804 is used to send an RRC connection establishment completion message to the relay device in response to the RRC connection establishment request. The RRC connection establishment completion message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment completion message.

[0169] In one embodiment, the first request message is a first MAC protocol data unit (PDU), which includes a MAC control unit (CE). The MAC CE includes a first identifier assigned to the terminal by the relay device when the relay device receives a random access request message sent by the terminal.

[0170] In one embodiment, the type of MAC CE is indicated by a reserved value in the Logical Channel Identifier (LCID) field in the header of the first MAC PDU.

[0171] This invention also provides a relay device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described random access method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0172] For details, see Figure 19 The present invention also provides a relay device, including a bus 1901, a transceiver 1902, an antenna 1903, a bus interface 1904, a processor 1905, and a memory 1906.

[0173] Transceiver 1902 is used for:

[0174] Receive random access request messages sent by the terminal;

[0175] In response to a random access request message, a first request message is sent to the network device, the first request message being used to request the network device to allocate a temporary identifier for the cell radio network to the terminal;

[0176] Upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) connection establishment request is sent to the network device. The first response includes a temporary radio network identifier of the target cell allocated by the network device to the terminal.

[0177] Upon receiving an RRC connection establishment complete message from the network device in response to the RRC connection establishment request, a random access success message is sent to the terminal.

[0178] In one embodiment, transceiver 1902 is further configured to:

[0179] After receiving the first response from the network device in response to the first request message, and before sending a Radio Resource Control (RRC) connection establishment request to the network device, the process also includes:

[0180] Upon receiving a first response from the network device in response to the first request message, a random access response is sent to the terminal.

[0181] The receiving terminal sends an RRC connection request message after receiving the random access response;

[0182] Sending a Radio Resource Control (RRC) connection establishment request to the network device includes:

[0183] Upon receiving an RRC connection request message, an RRC connection establishment request is sent to the network device.

[0184] In one embodiment, the RRC connection establishment request includes a first identifier assigned to the terminal by the relay device, a temporary identifier of the target cell radio network, and a target message. The RRC connection establishment completion message includes the first identifier, and the target message is a random access request message or an RRC connection request message.

[0185] In one embodiment, the relay device includes a first Media Access Control Protocol (MAC) function and a second MAC function;

[0186] Transceiver 1902 is also used to receive random access request messages sent by the terminal via the first MAC function;

[0187] Transceiver 1902 is also used for:

[0188] In response to the random access request message via the first MAC function, a first access request is sent to the second MAC function;

[0189] In response to the first access request, the second MAC function sends a first request message to the network device.

[0190] In one embodiment, transceiver 1902 is further configured to:

[0191] Upon receiving a first response from the network device, the second MAC function sends a second response to the first MAC function, the second response including the target cell's temporary radio network identifier.

[0192] The second MAC function receives the target request sent by the first MAC function after receiving the second response. The target request is either a random access request message or an RRC connection request message.

[0193] In response to the target request, the second MAC function sends an RRC connection establishment request to the network device.

[0194] In one embodiment, transceiver 1902 is further configured to:

[0195] When the second MAC function receives an RRC connection establishment complete message from the network device, it sends an RRC connection establishment complete message to the first MAC function.

[0196] Upon receiving the RRC connection establishment completion message from the second MAC function, the first MAC function sends a random access success message to the terminal.

[0197] In one embodiment, upon receiving an RRC connection establishment complete message from the network device in response to an RRC connection establishment request, a random access success message is sent to the terminal, including:

[0198] Upon receiving an RRC connection establishment completion message from the network device via the first MAC function, a random access success message is sent to the terminal.

[0199] In one embodiment, the first request message is a first MAC protocol data unit (PDU), the first MAC PDU includes a MAC control unit (CE), and the MAC CE includes a first identifier.

[0200] In one embodiment, the type of MAC CE is indicated by a reserved value in the logical channel identifier field in the header of the first MAC PDU.

[0201] exist Figure 19In this document, a bus architecture (represented by bus 1901) is used. Bus 1901 can include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 1905 and memory represented by memory 1906. Bus 1901 can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 1904 provides an interface between bus 1901 and transceiver 1902. Transceiver 1902 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 1905 is transmitted over a wireless medium via antenna 1903, which further receives data and transmits it to processor 1905.

[0202] Processor 1905 manages bus 1901 and general processing, and also provides various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Memory 1906 can be used to store data used by processor 1905 during operation.

[0203] Optionally, the processor 1905 can be a CPU, ASIC, FPGA, or CPLD.

[0204] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes described in the above-described embodiments of the random access method applied to relay devices, achieving the same technical effects. To avoid repetition, these details will not be repeated here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0205] This invention also provides a network device, including: a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described random access method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0206] For details, see Figure 20 As shown, this embodiment of the invention also provides a network device, including a bus 2001, a transceiver 2002, an antenna 2003, a bus interface 2004, a processor 2005, and a memory 2006.

[0207] Transceiver 2002 is used for:

[0208] Receive a first request message sent by a relay device. The first request message is used to request the network device to allocate a temporary identifier for the cell radio network to the terminal.

[0209] In response to the first request message, a first response is sent to the relay device, the first response including the target cell wireless network temporary identifier assigned to the terminal by the network device;

[0210] The receiver relays a Radio Resource Control (RRC) connection establishment request sent upon receiving the first response.

[0211] In response to the RRC connection establishment request, an RRC connection establishment complete message is sent to the relay device. The RRC connection establishment complete message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment complete message.

[0212] In one embodiment, the first request message is a first MAC protocol data unit (PDU), which includes a MAC control unit (CE). The MAC CE includes a first identifier assigned to the terminal by the relay device when the relay device receives a random access request message sent by the terminal.

[0213] In one embodiment, the type of MAC CE is indicated by a reserved value in the Logical Channel Identifier (LCID) field in the header of the first MAC PDU.

[0214] exist Figure 20 In this document, a bus architecture (represented by bus 2001) is used. Bus 2001 can include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 2005 and memory represented by memory 2006. Bus 2001 can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 2004 provides an interface between bus 2001 and transceiver 2002. Transceiver 2002 can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 2005 is transmitted over a wireless medium via antenna 2003, which further receives data and transmits it to processor 2005.

[0215] Processor 2005 manages bus 2001 and general processing, and also provides various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory 2006 can be used to store data used by processor 2005 during operation.

[0216] Optionally, the processor 2005 can be a CPU, ASIC, FPGA, or CPLD.

[0217] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements the various processes described in the above-described embodiments of the random access method applied to network devices, achieving the same technical effects. To avoid repetition, these will not be elaborated upon here. The computer-readable storage medium may be, for example, ROM, RAM, a magnetic disk, or an optical disk.

[0218] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0219] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or user plane function UPF, etc.) to execute the methods of the various embodiments of the present invention.

[0220] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A random access method, characterized in that, Performed by a relay device, the method includes: Receive random access request messages sent by the terminal; In response to the random access request message, a first request message is generated and sent to the network device, and the first request message is sent to the network device. The first request message is used to request the network device to allocate a cell radio network temporary identifier for the terminal. The first request message includes a first MAC PDU. Upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) Connection Establishment Request is generated and sent to the network device, and the RRC Connection Establishment Request is sent to the network device. The first response includes a target cell radio network temporary identifier allocated by the network device for the terminal. Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, a random access success message is generated and sent to the terminal; The relay device's protocol stack includes MAC and PHY. The MAC includes IRS-UE-MAC and IRS-BS-MAC. IRS-UE-MAC is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's MAC layer; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel. IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal beamforming information, and measurement processing functions reported by the UE. IRS-UE-PHY is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's PHY layer; it is responsible for processing the physical signals interacting between the IRS and the base station. IRS-BS-PHY is responsible for receiving and transmitting air interface signals from UEs within the IRS coverage area, including UE beamforming, beam re-beamforming, or beamforming correction functions.

2. The random access method according to claim 1, characterized in that, After receiving the first response from the network device in response to the first request message, and before sending the Radio Resource Control (RRC) connection establishment request to the network device, the method further includes: Upon receiving a first response from the network device in response to the first request message, a random access response is sent to the terminal; Receive the RRC connection request message sent by the terminal after receiving the random access response; The step of sending a Radio Resource Control (RRC) connection establishment request to the network device includes: Upon receiving the RRC connection request message, the network device sends the RRC connection establishment request.

3. The random access method according to claim 1 or 2, characterized in that, The RRC connection establishment request includes a first identifier assigned to the terminal by the relay device, a temporary identifier of the target cell radio network, and a target message. The RRC connection establishment completion message includes the first identifier, and the target message is either the random access request message or the RRC connection request message.

4. The random access method according to claim 1, characterized in that, The relay device includes a first Media Access Control Protocol (MAC) function and a second MAC function; The random access request message sent by the receiving terminal includes: The first MAC function receives the random access request message sent by the terminal; The step of sending a first request message to the network device in response to the random access request message includes: In response to the random access request message, the first MAC function sends a first access request to the second MAC function; The second MAC function responds to the first access request by sending the first request message to the network device.

5. The random access method according to claim 4, characterized in that, The step of generating a Radio Resource Control (RRC) connection establishment request to be sent to the network device and sending the RRC connection establishment request to the network device upon receiving a first response from the network device in response to the first request message includes: If the second MAC function receives the first response sent by the network device, it sends a second response to the first MAC function, the second response including the target cell radio network temporary identifier; The second MAC function receives a target request sent by the first MAC function after receiving the second response, wherein the target request is the random access request message or the RRC connection request message; In response to the target request, the second MAC function generates and sends the RRC connection establishment request to the network device.

6. The random access method according to claim 5, characterized in that, Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, the step of generating a random access success message to be sent to the terminal and sending the random access success message to the terminal includes: When the second MAC function receives the RRC connection establishment complete message sent by the network device, it sends the RRC connection establishment complete message to the first MAC function. Upon receiving the RRC connection establishment completion message sent by the second MAC function, the first MAC function generates and sends the random access success message to the terminal.

7. The random access method according to claim 5, characterized in that, Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, the step of generating a random access success message to be sent to the terminal and sending the random access success message to the terminal includes: When the first MAC function receives the RRC connection establishment completion message sent by the network device, it generates the random access success message to be sent to the terminal and sends the random access success message to the terminal.

8. The random access method according to claim 3, characterized in that, The first request message is a first MAC protocol data unit (PDU), which includes a MAC control unit (CE) and the MAC CE includes the first identifier.

9. The random access method according to claim 8, characterized in that, The type of the MAC CE is indicated by a reserved value in the logical channel identifier field in the header of the first MAC PDU.

10. A random access method, executed by a network device, characterized in that, The method includes: The network device receives a first request message sent by a relay device, the first request message being used to request the network device to allocate a temporary cell radio network identifier for the terminal; the first request message includes a first MAC PDU; In response to the first request message, a first response is sent to the relay device, the first response including the target cell radio network temporary identifier allocated by the network device to the terminal; Receive the Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response; In response to the RRC connection establishment request, an RRC connection establishment completion message is sent to the relay device. The RRC connection establishment completion message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment completion message. The relay device's protocol stack includes MAC and PHY. The MAC includes IRS-UE-MAC and IRS-BS-MAC. IRS-UE-MAC is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's MAC layer; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel. IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal beamforming information, and measurement processing functions reported by the UE. IRS-UE-PHY is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's PHY layer; it is responsible for processing the physical signals interacting between the IRS and the base station. IRS-BS-PHY is responsible for receiving and transmitting air interface signals from UEs within the IRS coverage area, including UE beamforming, beam re-beamforming, or beamforming correction functions.

11. The random access method according to claim 10, characterized in that, The first request message is a first MAC protocol data unit (PDU), which includes a MAC control unit (CE). The MAC CE includes a first identifier assigned to the terminal by the relay device when the relay device receives a random access request message sent by the terminal.

12. The random access method according to claim 11, characterized in that, The type of the MAC CE is indicated by the reserved value in the Logical Channel Identifier (LCID) field in the header of the first MAC PDU.

13. A relay device, characterized in that, The relay equipment includes: The first receiving module is used to receive random access request messages sent by the terminal; A first sending module is configured to, in response to the random access request message, generate a first request message to be sent to the network device, and send the first request message to the network device. The first request message is used to request the network device to allocate a temporary cell radio network identifier for the terminal. The first request message includes a first MAC PDU. The second sending module is configured to, upon receiving a first response from the network device in response to the first request message, generate a Radio Resource Control (RRC) connection establishment request to be sent to the network device, and send the RRC connection establishment request to the network device, wherein the first response includes a target cell radio network temporary identifier allocated by the network device for the terminal; The third sending module is configured to, upon receiving an RRC connection establishment completion message sent by the network device in response to the RRC connection establishment request, generate a random access success message to be sent to the terminal, and send the random access success message to the terminal. The relay device's protocol stack includes MAC and PHY. The MAC includes IRS-UE-MAC and IRS-BS-MAC. IRS-UE-MAC is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's MAC layer; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel. IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal beamforming information, and measurement processing functions reported by the UE. IRS-UE-PHY is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's PHY layer; it is responsible for processing the physical signals interacting between the IRS and the base station. IRS-BS-PHY is responsible for receiving and transmitting air interface signals from UEs within the IRS coverage area, including UE beamforming, beam re-beamforming, or beamforming correction functions.

14. A network device, characterized in that, The network device includes: The second receiving module is configured to receive a first request message sent by the relay device, the first request message being used to request the network device to allocate a temporary identifier for a cell radio network to the terminal; the first request message includes a first MAC PDU; The fourth sending module is used to send a first response to the relay device in response to the first request message, wherein the first response includes a target cell wireless network temporary identifier allocated by the network device to the terminal; The third receiving module is used to receive the Radio Resource Control (RRC) connection establishment request sent by the relay device in the event of receiving the first response; The fifth sending module is used to send an RRC connection establishment completion message to the relay device in response to the RRC connection establishment request. The RRC connection establishment completion message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment completion message. The relay device's protocol stack includes MAC and PHY. The MAC includes IRS-UE-MAC and IRS-BS-MAC. IRS-UE-MAC is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's MAC layer; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel. IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal beamforming information, and measurement processing functions reported by the UE. IRS-UE-PHY is a peer-to-peer protocol function entity responsible for IRS connection management within the base station's PHY layer; it is responsible for processing the physical signals interacting between the IRS and the base station. IRS-BS-PHY is responsible for receiving and transmitting air interface signals from UEs within the IRS coverage area, including UE beamforming, beam re-beamforming, or beamforming correction functions.

15. A relay device, characterized in that, Including transceivers and processors, The transceiver is used for: Receive random access request messages sent by the terminal; In response to the random access request message, a first request message is generated and sent to the network device, wherein the first request message is used to request the network device to allocate a temporary identifier for the cell radio network for the terminal. The first request message includes a first MAC PDU; Upon receiving a first response from the network device in response to the first request message, a Radio Resource Control (RRC) Connection Establishment Request is generated and sent to the network device, and the RRC Connection Establishment Request is sent to the network device. The first response includes a target cell radio network temporary identifier allocated by the network device for the terminal. Upon receiving an RRC connection establishment complete message sent by the network device in response to the RRC connection establishment request, a random access success message is generated and sent to the terminal; The relay device's protocol stack includes MAC and PHY; the MAC includes IRS-UE-MAC and IRS-BS-MAC. The IRS-UE-MAC is a peer-to-peer protocol function entity in the MAC layer of the base station responsible for IRS connection management; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel; the IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal shaping information, and measurement processing functions reported by the UE. The IRS-UE-PHY and the PHY layer of the base station are responsible for the IRS connection management function as peer protocol function entities, responsible for processing the physical signals of the interaction between the IRS and the base station; the IRS-BS-PHY is responsible for receiving and transmitting air interface signals of the UE within the IRS coverage area, including UE beamforming, beam re-beamforming or beamforming correction functions.

16. A network device, characterized in that, Including transceivers and processors, The transceiver is used for: The network device receives a first request message sent by a relay device, the first request message being used to request the network device to allocate a temporary cell radio network identifier for the terminal; the first request message includes a first MAC PDU; In response to the first request message, a first response is sent to the relay device, the first response including the target cell radio network temporary identifier allocated by the network device to the terminal; Receive the Radio Resource Control (RRC) connection establishment request sent by the relay device upon receiving the first response; In response to the RRC connection establishment request, an RRC connection establishment completion message is sent to the relay device. The RRC connection establishment completion message is used by the relay device to send a random access success message to the terminal upon receiving the RRC connection establishment completion message. The relay device's protocol stack includes MAC and PHY; the MAC includes IRS-UE-MAC and IRS-BS-MAC. The IRS-UE-MAC is a peer-to-peer protocol function entity in the MAC layer of the base station responsible for IRS connection management; it is responsible for establishing, modifying, maintaining, and releasing connections with the base station, as well as control and measurement reporting functions for the IRS panel; the IRS-BS-MAC is responsible for managing UEs within the IRS coverage area, including identity information, UE location information, air interface signal shaping information, and measurement processing functions reported by the UE. The IRS-UE-PHY and the PHY layer of the base station are responsible for the IRS connection management function as peer protocol function entities, responsible for processing the physical signals of the interaction between the IRS and the base station; the IRS-BS-PHY is responsible for receiving and transmitting air interface signals of the UE within the IRS coverage area, including UE beamforming, beam re-beamforming or beamforming correction functions.

17. A relay device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 9.

18. A network device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 10 to 12.

19. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of any of the methods of claims 1-9; or when executed by a processor, implements the steps of any of the methods of claims 10-12.

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