A System Information Configuration Method / Apparatus / Device and Storage Medium

Abstract

The present disclosure provides a system information configuration method / apparatus / device / storage medium, belonging to the field of communication technologies. The method includes: receiving system information sent by a network device and storing it. The method provided by the present disclosure enables a connected relay UE to obtain system information from the network device. Thus, when an idle or inactive remote UE requests any system information from the connected relay UE, the connected relay UE can obtain the system information requested by the idle or inactive remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a method / apparatus / device for configuring system information and a storage medium. Background Art

[0002] In a communication system, a user equipment (UE) may not be directly communicatively connected to a base station, but may communicate with the base station through the relay of another UE. Among them, the UE that is not connected to the network device is called a remote UE, and the UE that provides the relay function is called a relay UE.

[0003] In the related art, a remote UE may send a first request message to a relay UE. The first request message carries the identifier of the system information requested by the remote UE. After receiving the first request message, the relay UE will determine the system information requested by the remote UE, and then send a second request message to the network device to request the system information requested by the remote UE from the network device, and will forward the system information to the remote UE after receiving the system information sent by the network device based on the second request message.

[0004] However, in the related art, for a connected state relay UE, it can only request SIB12, SIB13, SIB14, SIB20, and SIB21 in the system information from the network device, but a remote UE in the idle state or inactive state can request any system information from the relay UE. Based on this, if a remote UE in the idle state or inactive state requests system information other than SIB12, SIB13, SIB14, SIB20, and SIB21 from a connected state relay UE, since the connected state relay UE cannot request system information other than SIB12, SIB13, SIB14, SIB20, and SIB21 from the network device, the connected state relay UE cannot obtain the system information requested by the remote UE from the network device, resulting in a failure of the system information request and affecting communication stability. Summary of the Invention

[0005] The method / apparatus / device for configuring system information and the storage medium provided by the present disclosure are used to solve the technical problem that the system information request fails in the related art.

[0006] In a first aspect, an embodiment of the present disclosure provides a method for configuring system information, which is executed by a connected state relay UE and includes:

[0007] Receiving and storing system information SIB sent by a base station.

[0008] In the present disclosure, a method for configuring system information is provided. The method for a connected state relay UE to receive system information sent by a network device may be as follows: The connected state relay UE obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0009] Optionally, in an embodiment of the present disclosure, after receiving and storing the system information sent by the network device, it further includes:

[0010] Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of the specific system information requested by the remote UE;

[0011] In response to the fact that the specific system information is not stored effectively in the relay UE, send a second request message to the network device, where the second request message is used to request the specific system information from the network device;

[0012] Receive the specific system information sent by the network device;

[0013] Forward the specific system information to the remote UE.

[0014] Optionally, in an embodiment of the present disclosure, after receiving and storing the system information sent by the network device, it further includes:

[0015] Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of the specific system information requested by the remote UE;

[0016] In response to the fact that the specific system information is stored effectively in the relay UE, send the effectively stored specific system information in the relay UE to the remote UE.

[0017] Optionally, in an embodiment of the present disclosure, the method for receiving the system information sent by the network device includes at least one or more of the following:

[0018] Based on the request of a third system information request message, receive a first type of system information sent by the network device, where the first type of system information includes: the system information that the connected state relay UE can indicate through the third system information request message;

[0019] Based on the request of the fourth system information request message, to receive system information other than the first type of system information sent by the network device;

[0020] Receive system information other than the first type of system information sent by the network device.

[0021] Optionally, in an embodiment of the present disclosure, the second request message includes a third system information request message or a fourth system information request message;

[0022] The sending of the second request message to the network device includes:

[0023] In response to the specific system information belonging to the first type of system information, send the third system information request message to the network device;

[0024] In response to the specific system information not belonging to the first type of system information, send the fourth system information request message to the network device.

[0025] Optionally, in an embodiment of the present disclosure, the fourth system information request message includes a preamble or an RRC System Information Request; wherein, there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble;

[0026] The sending of the fourth system information request message to the network device includes:

[0027] In response to the network device having configured a corresponding preamble for the specific system information, send the preamble corresponding to the specific system information to the network device;

[0028] In response to the network device not having configured a corresponding preamble for the specific system information, send the RRC System Information Request, and the identifier of the specific system information is carried in the RRC System Information Request.

[0029] In a second aspect, an embodiment of the present disclosure provides a system information configuration method, which is executed by a network device and includes:

[0030] Send SIB to the connected state relay UE.

[0031] Optionally, in an embodiment of the present disclosure, after sending the system information to the connected state relay UE, it further includes:

[0032] Receive a second request message sent by the connected relay UE, where the second request message is used to request the specific system information;

[0033] Send the specific system information to the connected relay UE.

[0034] Optionally, in an embodiment of the present disclosure, the method for sending system information to a connected relay UE includes at least one of the following:

[0035] Based on a request of a third system information request message, send a first type of system information to the relay UE, where the first type of system information includes: the system information that the connected relay UE can indicate through the third system information request message;

[0036] Based on a request of a fourth system information request message, send system information other than the first type of system information to the relay UE;

[0037] Send system information other than the first type of system information to the relay UE.

[0038] Optionally, in an embodiment of the present disclosure, the second request message includes a third system information request message or a fourth system information request message.

[0039] Optionally, in an embodiment of the present disclosure, the fourth system information request message includes a preamble or an RRCSystemInfoRequest; where there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble;

[0040] The sending of the specific system information to the connected relay UE includes:

[0041] In response to the received fourth system information request message being a preamble, determine the system information corresponding to the preamble as the specific system information and send it to the connected relay UE;

[0042] In response to the received fourth system information request message being an RRCSystemInfoRequest, send the specific system information to the connected relay UE based on the identifier of the specific system information carried in the RRCSystemInfoRequest.

[0043] Optionally, in an embodiment of the present disclosure, the sending of system information to a connected relay UE includes:

[0044] In response to determining that a UE is a connected relay UE, send the system information to the connected relay UE.

[0045] Optionally, in one embodiment of the present disclosure, the method for determining a UE as a connected relay UE includes at least one or more of the following;

[0046] Determine the UE as a connected relay UE in response to determining that a UE requests a resource for a relay discovery message;

[0047] Determine the UE as a connected relay UE in response to determining that a UE requests a resource for relay communication;

[0048] Determine the UE as a connected relay UE in response to determining that a UE sends a paging identifier of a remote UE.

[0049] In a third aspect, an embodiment of the present disclosure provides a system information configuration method, which is executed by a remote UE and includes:

[0050] Send a first request message to the connected relay UE, where the first request message carries a system information identifier of specific system information requested by the remote UE;

[0051] Receive the specific system information sent by the relay UE.

[0052] In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a relay UE and includes:

[0053] A transceiver module, configured to receive and store system information SIB sent by a base station.

[0054] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a network device and includes:

[0055] A transceiver module, configured to send system information SIB to a connected relay UE.

[0056] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a remote UE and includes:

[0057] A transceiver module, configured to send a first request message to the connected relay UE, where the first request message carries a system information identifier of specific system information requested by the remote UE;

[0058] A transceiver module, configured to receive the specific system information sent by the relay UE.

[0059] In a seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor, and when the processor calls a computer program in a memory, executes the method described in the first aspect above.

[0060] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor that, when calling a computer program in a memory, executes the method described in the second aspect above.

[0061] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor that, when calling a computer program in a memory, executes the method described in the third aspect above.

[0062] In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0063] In an eleventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0064] In a twelfth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory so that the communication device executes the method described in the third aspect above.

[0065] In a thirteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the first aspect above.

[0066] In a fourteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the second aspect above.

[0067] In a fifteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, and the processor is configured to run the code instructions so that the device executes the method described in the second aspect above.

[0068] In a sixteenth aspect, an embodiment of the present disclosure provides a communication system, which includes the communication devices described in the fourth aspect to the communication devices described in the sixth aspect, or the communication system includes the communication devices described in the seventh aspect to the communication devices described in the ninth aspect, or the communication system includes the communication devices described in the tenth aspect to the communication devices described in the twelfth aspect, or the communication system includes the communication devices described in the thirteenth aspect to the communication devices described in the fifteenth aspect.

[0069] In a seventeenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the above network device. When the instructions are executed, the terminal device is caused to execute the method described in any one of the first aspect to the third aspect.

[0070] In an eighteenth aspect, the present disclosure further provides a computer program product including a computer program. When it runs on a computer, the computer is caused to execute the method described in any one of the first aspect to the third aspect.

[0071] In a nineteenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, and is used to support the network device to implement the functions involved in the method described in any one of the first aspect to the third aspect. For example, determining or processing at least one of the data and information involved in the above method. In a possible design, the chip system further includes a memory for storing the necessary computer programs and data of the source secondary node. The chip system may be composed of chips or may include chips and other discrete devices.

[0072] In a twentieth aspect, the present disclosure provides a computer program. When it runs on a computer, the computer is caused to execute the method described in any one of the first aspect to the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of the embodiments in conjunction with the drawings, where:

[0074] Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0075] Figure 2 is a schematic flowchart of a system information configuration method provided by an embodiment of the present disclosure;

[0076] Figure 3 is a schematic flowchart of a system information configuration method provided by another embodiment of the present disclosure;

[0077] Figure 4 is a schematic flowchart of a system information configuration method provided by still another embodiment of the present disclosure;

[0078] Figure 5a Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0079] Figure 5b Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0080] Figure 6a Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0081] Figure 6b Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0082] Figure 7 Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0083] Figure 8 Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0084] Figure 9a Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0085] Figure 9b Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0086] Figure 10a Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0087] Figure 10b Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0088] Figure 11 Schematic flowchart of the system information configuration method provided by another embodiment of the present disclosure;

[0089] Figure 12 Schematic diagram of the structure of the system information configuration device provided by an embodiment of the present disclosure;

[0090] Figure 13 Schematic diagram of the structure of the system information configuration device provided by another embodiment of the present disclosure;

[0091] Figure 14 Schematic diagram of the structure of the system information configuration device provided by another embodiment of the present disclosure;

[0092] Figure 15It is a block diagram of a terminal device provided by an embodiment of the present disclosure;

[0093] Figure 16 It is a block diagram of a network - side device provided by an embodiment of the present disclosure. Detailed implementation manners

[0094] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the embodiments of the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0095] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present disclosure. The singular forms "a" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0096] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "when" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0097] To better understand a method for configuring system information disclosed in the embodiments of the present disclosure, the communication system applicable to the embodiments of the present disclosure will be described first below.

[0098] For ease of understanding, the terms related to this application are introduced first.

[0099] 1. Sidelink (SL)

[0100] Sidelink communication is divided into two modes. One is called discovery between UEs, and the other is called communication between UEs. Sidelink uses uplink resources and uplink physical channels similar to those of the cellular network (LTE) for data interaction and transmission.

[0101] 2. Remote UE

[0102] A UE that communicates with a base station through other UEs without directly communicating with the base station.

[0103] 3. Relay UE

[0104] A UE used to implement relay communication between other UEs and a base station.

[0105] 4. Radio Resource Control (RRC) signaling

[0106] RRC signaling can provide the function of parameter configuration for the underlying protocol entities of the access network; it is responsible for functions such as measurement and control related to the mobility management of terminal devices.

[0107] 5. System Information Block (SIB)

[0108] The SIB contains a lot of system information. For example, SIB1 contains relevant parameters for the UE to evaluate whether it can access the current cell and system scheduling, and SIB2 mainly contains public radio resource configuration information, timers and constants, cell access prohibition information, etc.

[0109] 6. Preamble

[0110] The uses of the preamble can be used for signal detection, time synchronization, frequency offset estimation, channel estimation, etc.

[0111] The embodiments of the present disclosure will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation of the present disclosure.

[0112] Please refer to Figure 1 , Figure 1 , which is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include, but is not limited to, a network device, a remote terminal device, and a relay terminal device. Figure 1 The number and form of the devices shown are only for illustration and do not constitute a limitation on the embodiments of the present disclosure. In practical applications, there may include two or more network devices and two or more terminal devices. Figure 1 The communication system shown takes one network device 11, one remote terminal device 12, and one relay terminal device 13 as an example.

[0113] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example: Long Term Evolution (LTE) systems, 5th generation (5G) mobile communication systems, 5G New Radio (NR) systems, or other future new mobile communication systems, etc.

[0114] The network device 11 in the embodiments of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 11 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a Wireless Fidelity (WiFi) system, etc. The embodiments of the present disclosure do not limit the specific technologies and specific device forms adopted by the network device. The network device provided by the embodiments of the present disclosure can be composed of a central unit (CU) and a distributed unit (DU). Among them, the CU can also be called a control unit. Adopting the CU-DU structure can split the protocol layer of the network device, such as a base station. The functions of some protocol layers are centrally controlled by the CU, and the functions of the remaining part or all protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0115] In the embodiments of the present disclosure, the remote terminal device 12 and the relay terminal device 13 may be entities on the user side for receiving or transmitting signals, such as mobile phones. The terminal device may also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may be an automobile with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and so on. The embodiments of the present disclosure do not limit the specific technologies and specific device forms adopted by the terminal device.

[0116] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly explaining the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art know that with the evolution of the system architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0117] The embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure, and should not be construed as a limitation of the present disclosure.

[0118] Figure 2 It is a schematic flowchart of a system information configuration method provided for an embodiment of the present disclosure, which is applied to a connected state relay UE, such as Figure 2 As shown, the system information configuration method may include the following steps:

[0119] Step 201: Receive the system information sent by the network device and store it.

[0120] Among them, in an embodiment of the present disclosure, the method for receiving and storing the system information sent by the network device may include at least one or more of the following:

[0121] Method 1: Based on the request of the third system information request message, receive the first type of system information sent by the network device.

[0122] Among them, in an embodiment of the present disclosure, the third system information request message may be DedicatedSIBRequest. And, the third system information request message may indicate the system information to be requested, such as including the identifier of the requested system information. After that, the relay UE can receive the system information indicated by the third system information request message sent by the network device by sending the third system information request message to the network device.

[0123] And, it should be noted that, in an embodiment of the present disclosure, the third system information request message does not support indicating all system information, and it only supports indicating some system information. Based on this, the above-mentioned first type of system information may include: the system information that the connected relay UE can indicate through the third system information request message. Exemplarily, in an embodiment of the present disclosure, the first type of system information may include at least one of SIB12, SIB13, SIB14, SIB20, and SIB21.

[0124] Method 2: Based on the request of the fourth system information request message, receive the system information other than the first type of system information sent by the network device.

[0125] Among them, in an embodiment of the present disclosure, for the system information that cannot be indicated by the above-mentioned third system information request message (that is, the system information other than the first type of system information), it can be obtained through the fourth system information request message. Specifically, the relay UE can obtain the system information requested by the fourth system information request message sent by the network device by sending the fourth system information request message to the network device.

[0126] Furthermore, in an embodiment of the present disclosure, the above-mentioned fourth system information request message may be a preamble or an RRC system information request (RRCSystemInfoRequest). And, it should be noted that the sending situations of the above-mentioned preamble or RRCSystemInfoRequest are also different.

[0127] Specifically, in an embodiment of the present disclosure, there is a correspondence between the preamble and the system information, and the preamble can be specifically used to request the system information corresponding to the preamble. Among them, the correspondence between the preamble and the system information can be indicated by the network device to the relay UE through si-RequestConfig in SIB1. That is, the network device will indicate through si-RequestConfig in SIB1 which preamble should be used to request a certain system message. Based on this, when the relay UE wants to request a certain system information other than the first type of system information, if the network device configures a corresponding preamble for this system information, the relay UE can send the preamble corresponding to this system information to the network device to receive the corresponding system information sent by the network device to the relay UE based on this preamble; if the network device does not configure a corresponding preamble for this system information, the relay UE can send an RRCSystemInfoRequest to the network device, where the RRCSystemInfoRequest includes the identifier of this system information, so that the relay UE can receive the corresponding system information sent by the network device based on the identifier of this system information.

[0128] That is to say, in the embodiment of the present disclosure, when the connected-state relay UE receives system messages other than SIB12, SIB13, SIB14, SIB20, and SIB21 requested by the remote UE, the UE cannot request the system message from the network device through DedicatedSIBRequest. At this time, the connected-state relay UE can request the system message through the preamble or RRCSystemInfoRequest to obtain the system messages other than SIB12, SIB13, SIB14, SIB20, and SIB21 for the remote UE.

[0129] Method 3: Receive system information other than the first type of system information sent by the network device.

[0130] Among them, in an embodiment of the present disclosure, for the system information that cannot be indicated by the above third system information request message (that is, the system information other than the first type of system information), the relay UE does not need to request it from the network device, but the network device actively sends it to the relay UE.

[0131] It should be noted that, in an embodiment of the present disclosure, the method for the above network device to send the first type of system information or system information other than the first type of system information to the relay UE can be at least one of the following:

[0132] Send the first type of system information, or system information other than the first type of system information, to the connected relay UE through the RRC reconfiguration message.

[0133] Broadcast the first type of system information, or system information other than the first type of system information, to the connected relay UE.

[0134] For example, the network device may send all system information to the connected relay UE through the RRC reconfiguration message; or, the network device may provide some system information through broadcasting and provide the un-broadcast system information through the RRC reconfiguration message.

[0135] From the above methods 1 to 3, it can be seen that in an embodiment of the present disclosure, for a connected relay UE, it has the ability to obtain all system information from the network device. Specifically, it can obtain all system information based on a request (such as obtaining the first type of system information based on the third system information request message and obtaining system information other than the first type of system information based on the fourth system information request message), or obtain some system information based on a request and obtain other remaining system information actively sent by the network device (such as obtaining the first type of system information based on the third system information request message and obtaining system information other than the first type of system information actively sent by the network device). Based on this, when an idle or inactive remote UE requests any system information from the connected relay UE, the connected relay UE can obtain the system information requested by the idle or inactive remote UE from the network device (such as the connected relay UE can obtain the system information required by the remote UE based on a request, or the connected relay UE can obtain the system information required by the remote UE actively sent by the network device) and forward it to the remote UE, thus ensuring that the remote UE can successfully request any system information and avoiding the situation that "when an idle or inactive remote UE requests other SIBs except SIB12, SIB13, SIB14, SIB20, and SIB21 from the connected relay UE, since the connected relay UE can only request and obtain SIB12, SIB13, SIB14, SIB20, and SIB21 from the network device, the connected relay UE cannot successfully obtain other SIBs requested by the remote UE, resulting in the failure of the remote UE to request the other SIBs", ensuring the stability of SL communication.

[0136] In summary, in the system information configuration method provided in the embodiments of the present disclosure, the connected state relay UE receives the system information sent by the network device and stores it. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when the idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0137] Figure 3 As shown in the flowchart of a system information configuration method provided by an embodiment of the present disclosure, it is applied to a connected state relay UE, as Figure 3 shown, the system information configuration method may include the following steps:

[0138] Step 301: Receive the system information sent by the network device and store it.

[0139] For a detailed introduction to step 301, reference can be made to the description of the above embodiments.

[0140] Step 302: Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of specific system information requested by the remote UE.

[0141] Among them, in an embodiment of the present disclosure, the remote UE and the relay UE can be connected through an SL communication link.

[0142] In addition, in an embodiment of the present disclosure, when the remote UE is in different states, the first request message sent by it to the relay UE will be different.

[0143] Specifically, in an embodiment of the present disclosure, when the remote UE is in the idle state or the inactive state, the first request message may be a sidelink RRC message, for example, it may be a RemoteUEInformationSidelink message. Among them, the first request message sent by the remote UE in the idle state or the inactive state can request any system information; and if the remote UE is in the connected state, the first request message may be a DedicatedSIBRequest. Among them, the first request message sent by the remote UE in the connected state can request the first type of system information. For an introduction to the first type of system information, reference can be made to the description of the above embodiments.

[0144] Step 303: In response to the valid specific system information being stored in the relay UE, send the valid specific system information stored in the relay UE to the remote UE.

[0145] Among them, in an embodiment of the present disclosure, the valid specific system information is specifically the system information of the latest version.

[0146] In addition, in an embodiment of the present disclosure, the network device indicates the latest version number of each system information in SIB1. Based on this, the method for the relay UE to determine that it stores valid specific system information can be:

[0147] Determine the latest version number of the specific system information requested by the remote UE based on the SIB1 broadcast by the network device, and determine the version number of the specific system information stored by the relay UE itself. If the version number of the specific system information stored by the relay UE itself is the latest version number, it is determined that the relay UE stores valid specific system information. At this time, the specific system information stored by the relay UE itself can be directly sent to the remote UE.

[0148] Among them, in an embodiment of the present disclosure, the connected-mode relay UE can specifically send the specific system information to the remote UE through a sidelinkRRC message (for example, it can be UuMessageTransferSidelink).

[0149] To sum up, in the system information configuration method provided by the embodiments of the present disclosure, the connected-mode relay UE receives the system information sent by the network device and stores it. Among them, the method for the connected-mode relay UE to receive the system information sent by the network device can be: the connected-mode relay UE obtains the system information required by the remote UE based on the request, or the connected-mode relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle-mode or inactive-mode remote UE requests any system information from the connected-mode relay UE, the connected-mode relay UE can obtain the system information requested by the idle-mode or inactive-mode remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0150] Figure 4 It is a flowchart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a connected-mode relay UE. As Figure 4 shown, the system information configuration method may include the following steps:

[0151] Step 401: Receive the system information sent by the network device and store it.

[0152] Step 402: Obtain a first request message sent by the remote UE. The first request message may carry a system information identifier of specific system information requested by the remote UE.

[0153] For the relevant introductions of Steps 401 - 402, reference can be made to the descriptions in the above embodiments.

[0154] Step 403: In response to the fact that the relay UE does not store valid specific system information, send a second request message to the network device. The second request message is used to request specific system information from the network device.

[0155] Among them, in an embodiment of the present disclosure, the valid specific system information is specifically the system information of the latest version.

[0156] And, in an embodiment of the present disclosure, the network device will indicate the latest version number of each system information in SIB1. Based on this, the method for the relay UE to determine that it does not store valid specific system information may be:

[0157] Determine the latest version number of the specific system information requested by the remote UE based on the SIB1 broadcast by the network device, and determine the version number of the specific system information stored by the relay UE itself. If the version number of the specific system information stored by the relay UE itself is not the latest version number, it is determined that the relay UE does not store valid specific system information. At this time, the relay UE needs to send a second request message to the network device to request the latest version of the specific system information from the network device, and forward the obtained latest version of the specific system information to the remote UE.

[0158] Among them, in an embodiment of the present disclosure, the above - mentioned second request message may be DedicatedSIBRequest. In another embodiment of the present disclosure, the second request message may be preamble or RRCSystemInfoRequest. Among them, when the relay UE sends DedicatedSIBRequest to the network device and when it sends preamble or RRCSystemInfoRequest to the network device will be introduced in detail in the subsequent embodiments.

[0159] Furthermore, it should be noted that, in an embodiment of the present disclosure, after the connected - state relay UE sends a second request message to the network device, a timer (such as Timer T350) can be started. And during the running of this timer, the connected - state relay UE cannot send the second request message again. Thus, it is possible to avoid the connected - state relay UE from repeatedly sending useless second request messages, and then save signaling overhead.

[0160] In addition, it should be noted that, in an embodiment of the present disclosure, the network device may also use onDemandSIB-Request to indicate whether the relay UE can send the second request message in the connected state. And, in response to the network device indicating that the relay UE can send the second request message in the connected state, the relay UE can send the second request message to the network device in the connected state. Among them, onDemandSIB-Request may specifically be carried by the RRC reconfiguration message and sent to the relay UE.

[0161] Step 404: Receive the specific system information sent by the network device.

[0162] Among them, in an embodiment of the present disclosure, the specific system information sent by the network device to the UE in this step is the latest version of the specific system information.

[0163] Step 405: Forward the specific system information to the remote UE.

[0164] In summary, in the system information configuration method provided in the embodiments of the present disclosure, the connected state relay UE receives the system information sent by the network device and stores it. Among them, the method for the connected state relay UE to receive the system information sent by the network device may be: the connected state relay UE obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when the idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thus ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0165] Figure 5a It is a schematic flowchart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a connected state relay UE. As Figure 5a shown, the system information configuration method may include the following steps:

[0166] Step 501a: Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of the specific system information requested by the remote UE.

[0167] Among them, the relevant introduction of step 501a may refer to the description in the above embodiment.

[0168] Step 502a: In response to the fact that there is no valid specific system information stored in the relay UE and the specific system information belongs to the first type of system information, send a third system information request message to the network device.

[0169] Among them, in one embodiment of the present disclosure, the third system information request message may be a DedicatedSIBRequest, and the third system information request message can request the first type of system information from a network device by indicating the first type of system information.

[0170] Thus, in one embodiment of the present disclosure, when the relay UE does not store valid specific system information, the relay UE needs to request the specific system information from the network device. On this basis, when the specific system information requested by the first request message belongs to the first type of system information, it indicates that the third system information can indicate the specific system information. Therefore, the connected state relay UE can request the specific system information by sending a third system information request message to the network device.

[0171] Step 503a: Receive the specific system information sent by the network device.

[0172] Step 504a: Forward the specific system information to the remote UE.

[0173] In summary, in the system information configuration method provided by the embodiments of the present disclosure, the connected state relay UE receives and stores the system information sent by the network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the connected state relay UE obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0174] Figure 5b It is a schematic flow chart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a connected state relay UE, as Figure 5b shown, the system information configuration method may include the following steps:

[0175] Step 501b: Obtain a first request message sent by a remote UE, where the first request message carries a system information identifier of specific system information requested by the remote UE.

[0176] Among them, the relevant introduction of step 501b can refer to the description in the above embodiment.

[0177] Step 502b: In response to the fact that the relay UE does not store valid specific system information and the specific system information does not belong to the first type of system information, send a fourth system information request message to the network device.

[0178] Among them, in an embodiment of the present disclosure, when the relay UE does not store valid specific system information, the relay UE needs to obtain the specific system information by requesting it from the network device. On this basis, when the specific system information does not belong to the first type of system information, it means that the third system information cannot be used to indicate the specific system information. Therefore, the relay UE needs to send a fourth system information request message to the network device to request the specific system information.

[0179] In addition, in an embodiment of the present disclosure, the fourth system information request message may be a preamble or an RRCSystemInfoRequest message. Among them, when the relay UE sends a preamble to the network device and when it sends an RRCSystemInfoRequest message to the network device will be introduced in detail in subsequent embodiments.

[0180] Step 503b: Receive the specific system information sent by the network device.

[0181] Step 504b: Forward the specific system information to the remote UE.

[0182] In summary, in the system information configuration method provided by the embodiments of the present disclosure, the connected state relay UE will receive and store the system information sent by the network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the connected state relay UE obtains the system information required by the remote UE based on the request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when the idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thus ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0183] Figure 6a It is a schematic flowchart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a connected state relay UE, as Figure 6a shown. The system information configuration method may include the following steps:

[0184] Step 601a: Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of the specific system information requested by the remote UE.

[0185] Among them, other relevant introductions of step 601a can be referred to the description of the above embodiments.

[0186] Step 602a, in response to the fact that the relay UE does not store valid specific system information, and the specific system information does not belong to the first type of system information, and the network device configures a corresponding preamble for the specific system information, send the preamble corresponding to the specific system information to the network device.

[0187] Among them, in an embodiment of the present disclosure, there may be a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble.

[0188] In addition, in an embodiment of the present disclosure, the network device may configure the corresponding relationship between the preamble and the system information through si-RequestConfig in SIB1.

[0189] Step 603a, receive the specific system information sent by the network device.

[0190] Among them, in an embodiment of the present disclosure, the specific system information is: after the network device receives the preamble sent by the relay UE, the system information corresponding to the preamble sent based on the preamble.

[0191] Among them, in an embodiment of the present disclosure, for the methods used in step 602a-step 603a, please refer to Figure 2 Method 2 in step 201 of the above embodiments.

[0192] Step 604a, forward the specific system information to the remote UE.

[0193] In summary, in the system information configuration method provided by the embodiments of the present disclosure, the connected state relay UE will receive and store the system information sent by the network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the connected state relay UE obtains the system information required by the remote UE based on the request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when the idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0194] Figure 6bThe flowchart of a system information configuration method provided by an embodiment of the present disclosure is applied to a connected state relay UE. For example, Figure 6b as shown, the system information configuration method may include the following steps:

[0195] Step 601b: Obtain a first request message sent by a remote UE. The first request message carries a system information identifier of specific system information requested by the remote UE.

[0196] Among them, other relevant introductions of step 601a can be referred to the description in the above embodiment.

[0197] Step 602b: In response to the situation that the valid specific system information is not stored in the relay UE, and the specific system information does not belong to the first type of system information, and no preamble is configured for the specific system information, send an RRCSystemInfoRequest to the network device. The RRCSystemInfoRequest carries the identifier of the specific system information.

[0198] Step 603b: Receive the specific system information sent by the network device.

[0199] Among them, in an embodiment of the present disclosure, the method used in step 602b-step 603b can refer to Figure 2 Method 2 in step 201 of the above

[0200] Step 604b: Forward the specific system information to the remote UE.

[0201] In summary, in the system information configuration method provided by the embodiment of the present disclosure, the connected state relay UE will receive and store the system information sent by the network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the connected state relay UE obtains the system information required by the remote UE based on the request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0202] Figure 7 The flowchart of a system information configuration method provided by an embodiment of the present disclosure is applied to a network device. For example, Figure 7 as shown, the system information configuration method may include the following steps:

[0203] Step 701: Send system information to a connected relay UE.

[0204] Among them, in an embodiment of the present disclosure, when a network device determines that a certain UE is a relay UE, it will send system information to the relay UE.

[0205] In addition, in an embodiment of the present disclosure, the method for determining a UE as a connected relay UE includes at least one or more of the following;

[0206] In response to determining that a UE requests resources for a relay discovery message, it is determined that the UE is a connected relay UE.

[0207] In response to determining that a UE requests resources for a relay communication, it indicates that the UE is a relay UE in the connected state and has a remote UE connected. At this time, it is determined that the UE is a connected relay UE.

[0208] In response to determining that a UE sends a paging identifier of a remote UE, it indicates that the UE is a relay UE in the connected state and has a remote UE in the idle state or inactive state connected. At this time, it is determined that the UE is a connected relay UE.

[0209] In addition, in an embodiment of the present disclosure, the method for a network device to send system information to a connected relay UE includes at least one of the following:

[0210] Method 1: Based on the request of a third system information request message, send a first type of system information to the relay UE. The first type of system information includes: the system information that the connected relay UE can indicate through the third system information request message.

[0211] Method 2: Based on the request of a fourth system information request message, send system information other than the first type of system information to the relay UE.

[0212] Method 3: Send system information other than the first type of system information to the relay UE.

[0213] In addition, the network device can send system information to the connected relay UE through an RRC reconfiguration message, or can also broadcast and send system information to the connected relay UE.

[0214] Among them, other relevant introductions of step 701 can refer to the descriptions in the above embodiments.

[0215] In summary, in the system information configuration method provided by the embodiments of the present disclosure, a connected state relay UE receives and stores the system information sent by a network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0216] Figure 8 The flowchart of a system information configuration method provided by the embodiments of the present disclosure is applied to a network device, such as Figure 8 shown, the system information configuration method may include the following steps:

[0217] Step 801, receive a second request message sent by a connected state relay UE, where the second request message is used to request specific system information.

[0218] Step 802, send the specific system information to the connected state relay UE.

[0219] Among them, the relevant introduction of steps 801-802 can refer to the description in the above embodiments.

[0220] In summary, in the system information configuration method provided by the embodiments of the present disclosure, a connected state relay UE receives and stores the system information sent by a network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0221] Figure 9a The flowchart of a system information configuration method provided by the embodiments of the present disclosure is applied to a network device, such as Figure 9a shown, the system information configuration method may include the following steps:.

[0222] Step 901a: Receive a third system information request message sent by a relay UE.

[0223] Step 902a: Send the system information requested by the third system information request message to the relay UE.

[0224] Among them, the relevant introduction to steps 901a - 902a can refer to the description of the above embodiments.

[0225] In summary, in the system information configuration method provided in the embodiments of the present disclosure, a connected - state relay UE receives and stores the system information sent by a network device. Among them, the method for the connected - state relay UE to receive the system information sent by the network device can be: the connected - state relay UE obtains the system information required by a remote UE based on a request, or the connected - state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle - state or inactive - state remote UE requests any system information from the connected - state relay UE, the connected - state relay UE can obtain the system information requested by the idle - state or inactive - state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0226] Figure 9b The flowchart of a system information configuration method provided by an embodiment of the present disclosure is applied to a network device, as Figure 9b shown. This system information configuration method may include the following steps:

[0227] Step 901b: Receive a fourth system information request message sent by a relay UE.

[0228] Step 902b: Send the system information requested by the fourth system information request message to the relay UE.

[0229] Among them, the relevant introduction to steps 901b - 902b can refer to the description of the above embodiments.

[0230] In summary, in the system information configuration method provided by the embodiments of the present disclosure, the connected state relay UE receives the system information sent by the network device and stores it. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0231] Figure 10a As shown in the flowchart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a network device, such as Figure 10a shown, the system information configuration method may include the following steps:

[0232] Step 1001a: Receive the preamble sent by the relay UE.

[0233] Step 1002a: Determine the system information corresponding to the preamble as specific system information and send it to the connected state relay UE.

[0234] For the relevant introduction of steps 1001a - 1002a, reference can be made to the description in the above embodiments.

[0235] In summary, in the system information configuration method provided by the embodiments of the present disclosure, the connected state relay UE receives the system information sent by the network device and stores it. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0236] Figure 10b As shown in the flowchart of a system information configuration method provided by an embodiment of the present disclosure, which is applied to a network device, such as Figure 10b shown, the system information configuration method may include the following steps:

[0237] Step 1001b: Receive an RRC System Information Request sent by a relay UE.

[0238] Step 1002b: Send specific system information to the connected relay UE based on the identifier of the specific system information carried in the RRC System Information Request.

[0239] Specifically, the network device can determine the specific system information requested by the relay UE based on the identifier carried in the RRC System Information Request, and then send the determined specific system information to the relay UE.

[0240] For the relevant introduction of steps 1001b - 1002b, reference can be made to the above - described embodiments.

[0241] In summary, in the system information configuration method provided in the embodiments of the present disclosure, the connected relay UE receives and stores the system information sent by the network device. Among them, the method for the connected relay UE to receive the system information sent by the network device can be: the connected relay UE obtains the system information required by the remote UE based on a request, or the connected relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle or inactive remote UE requests any system information from the connected relay UE, the connected relay UE can obtain the system information requested by the idle or inactive remote UE from the network device and forward it to the remote UE, thus ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0242] Figure 11 As shown in the flowchart of a system information configuration method provided by the embodiments of the present disclosure, which is applied to a remote UE. Figure 11 As shown, the system information configuration method may include the following steps:

[0243] Step 1101: Send a first request message to the connected relay UE, where the first request message carries the system information identifier of the specific system information requested by the remote UE.

[0244] Step 1102: Receive the specific system information sent by the relay UE.

[0245] For the relevant introduction of steps 1101 - 1102, reference can be made to the above - described embodiments.

[0246] In summary, in the system information configuration method provided by the embodiments of the present disclosure, a connected-mode relay UE receives system information sent by a network device and stores it. Among them, the method for the connected-mode relay UE to receive the system information sent by the network device can be: the connected-mode relay UE obtains the system information required by the remote UE based on a request, or the connected-mode relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle-mode or inactive-mode remote UE requests any system information from the connected-mode relay UE, the connected-mode relay UE can obtain the system information requested by the idle-mode or inactive-mode remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0247] Figure 12 A schematic structural diagram of a communication device provided by an embodiment of the present disclosure is shown in Figure 12 as follows, including:

[0248] A transceiver module, configured to receive system information sent by a network device and store it.

[0249] In summary, in the communication device provided by the embodiments of the present disclosure, a connected-mode relay UE receives system information sent by a network device and stores it. Among them, the method for the connected-mode relay UE to receive the system information sent by the network device can be: the connected-mode relay UE obtains the system information required by the remote UE based on a request, or the connected-mode relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle-mode or inactive-mode remote UE requests any system information from the connected-mode relay UE, the connected-mode relay UE can obtain the system information requested by the idle-mode or inactive-mode remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0250] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0251] Obtain a first request message sent by the remote UE, where the first request message carries a system information identifier of specific system information requested by the remote UE;

[0252] In response to the fact that the specific system information is not stored effectively in the relay UE, send a second request message to the network device, where the second request message is used to request the specific system information from the network device;

[0253] Receive the specific system information sent by the network device;

[0254] Forward the specific system information to the remote UE.

[0255] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0256] Obtain a first request message sent by a remote UE, where the first request message carries a system information identifier of specific system information requested by the remote UE;

[0257] In response to the valid specific system information being stored in the relay UE, send the valid specific system information stored in the relay UE to the remote UE.

[0258] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to perform at least one or more of the following:

[0259] Based on a request of a third system information request message, receive a first type of system information sent by the network device, where the first type of system information includes: system information that a connected state relay UE can indicate through the third system information request message;

[0260] Based on a request of a fourth system information request message, receive system information other than the first type of system information sent by the network device;

[0261] Receive system information other than the first type of system information sent by the network device.

[0262] Optionally, in an embodiment of the present disclosure, the second request message includes a third system information request message or a fourth system information request message;

[0263] The transceiver module is further configured to:

[0264] In response to the specific system information belonging to the first type of system information, send the third system information request message to the network device;

[0265] In response to the specific system information not belonging to the first type of system information, send the fourth system information request message to the network device.

[0266] Optionally, in an embodiment of the present disclosure, the fourth system information request message includes a preamble or an RRC system information request (RRCSystemInfoRequest); where there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble;

[0267] The transceiver module is further configured to:

[0268] In response to the network device configuring a corresponding preamble for the specific system information, send the preamble corresponding to the specific system information to the network device;

[0269] In response to the network device not configuring a corresponding preamble for the specific system information, send the RRCSystemInfoRequest to the network device, where the identifier of the specific system information is carried in the RRCSystemInfoRequest.

[0270] Figure 13 The following is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure, as Figure 13 shown, including:

[0271] A transceiver module, configured to send system information to a connected state relay UE.

[0272] In summary, among the communication devices provided by the embodiments of the present disclosure, the connected state relay UE will receive and store the system information sent by the network device. Among them, the method for the connected state relay UE to receive the system information sent by the network device can be: the relay UE in the connected state obtains the system information required by the remote UE based on a request, or the connected state relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle state or inactive state remote UE requests any system information from the connected state relay UE, the connected state relay UE can obtain the system information requested by the idle state or inactive state remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0273] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0274] Receive a second request message sent by the connected state relay UE, where the second request message is used to request the specific system information;

[0275] Send the specific system information to the connected state relay UE.

[0276] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0277] Send the system information requested by the second request message to the relay UE;

[0278] Send the system information other than the first type of system information to the relay UE.

[0279] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0280] Upon a request in a third system information request message, send first - type system information to the relay UE, where the first - type system information includes: system information that a connected - state relay UE can indicate through the third system information request message;

[0281] Upon a request in a fourth system information request message, send system information other than the first - type system information to the relay UE;

[0282] Send system information other than the first - type system information to the relay UE.

[0283] Optionally, in an embodiment of the present disclosure, the second request message includes a third system information request message or a fourth system information request message.

[0284] Optionally, in an embodiment of the present disclosure, the second request message includes a third system information request message or a fourth system information request message; wherein, the fourth system information request message is only used to request to obtain the first - type system information.

[0285] Optionally, in an embodiment of the present disclosure, the fourth system information request message includes a preamble or an RRCSystemInfoRequest; wherein, there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble;

[0286] The transceiver module is further configured to:

[0287] In response to the received fourth system information request message being a preamble, determine the system information corresponding to the preamble as the specific system information and send it to the connected - state relay UE;

[0288] In response to the received fourth system information request message being an RRCSystemInfoRequest, send the specific system information to the connected - state relay UE based on the identifier of the specific system information carried in the RRCSystemInfoRequest.

[0289] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0290] In response to determining that a UE is a connected - state relay UE, send the system information to the connected - state relay UE.

[0291] Optionally, in an embodiment of the present disclosure, the transceiver module is further configured to:

[0292] In response to determining that a UE requests a resource for sending a relay discovery message, determining that the UE is a connected relay UE;

[0293] In response to determining that a UE requests a resource for sending relay communication, determining that the UE is a connected relay UE;

[0294] In response to determining that a UE sends a paging identifier of a remote UE, determining that the UE is a connected relay UE.

[0295] Figure 14 The following is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure, as Figure 14 shown, including:

[0296] A transceiver module, configured to send a first request message to a connected relay UE, where the first request message carries a system information identifier of specific system information requested by a remote UE;

[0297] The transceiver module is configured to receive the specific system information sent by the relay UE.

[0298] In summary, in the system information configuration device provided by the embodiment of the present disclosure, a connected relay UE receives and stores system information sent by a network device. Among them, the method for the connected relay UE to receive system information sent by the network device can be: the connected relay UE obtains the system information required by the remote UE based on a request, or the connected relay UE obtains the system information required by the remote UE actively sent by the network device. Based on this, when an idle or inactive remote UE requests any system information from the connected relay UE, the connected relay UE can obtain the system information requested by the idle or inactive remote UE from the network device and forward it to the remote UE, thereby ensuring that the remote UE can successfully request any system information and ensuring the stability of communication.

[0299] Please refer to Figure 15 , Figure 15 which is a schematic structural diagram of a communication device 1500 provided by an embodiment of the present application. The communication device 1500 may be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method. The device can be used to implement the method described in the above method embodiment, and specifically, reference can be made to the description in the above method embodiment.

[0300] The communication device 1500 may include one or more processors 1501. The processor 1501 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.

[0301] Optionally, the communication device 1500 may further include one or more memories 1502, on which a computer program 1504 may be stored, and the processor 1501 executes the computer program 1504 so that the communication device 1500 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1502. The communication device 1500 and the memory 1502 may be provided separately or integrated together.

[0302] Optionally, the communication device 1500 may further include a transceiver 1505 and an antenna 1506. The transceiver 1505 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1505 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

[0303] Optionally, the communication device 1500 may further include one or more interface circuits 1507. The interface circuit 1507 is used to receive code instructions and transmit them to the processor 1501. The processor 1501 runs the code instructions to enable the communication device 1500 to execute the method described in the above method embodiment.

[0304] In one implementation, the processor 1501 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0305] In one implementation, the processor 1501 may store a computer program 1503, which runs on the processor 1501 and enables the communication device 1500 to perform the method described in the above method embodiment. The computer program 1503 may be fixed in the processor 1501, in which case the processor 1501 may be implemented by hardware.

[0306] In one implementation, the communication device 1500 may include circuitry that can implement the functions of transmitting, receiving, or communicating in the foregoing method embodiments. The processor and transceiver described in this application may be implemented on an integrated circuit (IC), analog IC, radio frequency integrated circuit (RFIC), mixed-signal IC, application specific integrated circuit (ASIC), printed circuit board (PCB), electronic device, etc. The processor and transceiver may also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), BiCMOS, silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0307] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be subject to Figure 15 restrictions. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0308] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0309] (2) A collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and computer programs;

[0310] (3) An ASIC, such as a modem;

[0311] (4) A module that can be embedded in other devices;

[0312] (5) A receiver, terminal device, smart terminal device, cellular phone, wireless device, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.;

[0313] (6) Others, etc.

[0314] For the case where the communication device can be a chip or a chip system, reference can be made to Figure 16 the structural schematic diagram of the chip shown. Figure 16 The chip shown includes a processor 1601 and an interface 1602. Among them, the number of processors 1601 can be one or more, and the number of interfaces 1602 can be multiple.

[0315] Optionally, the chip further includes a memory 1603, and the memory 1603 is used to store necessary computer programs and data.

[0316] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such a function is implemented by hardware or software depends on the specific application and the design requirements of the entire system. For each specific application, those skilled in the art can use various methods to implement the described function, but such implementation should not be construed as exceeding the scope protected by the embodiments of the present application.

[0317] The present application also provides a readable storage medium, on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

[0318] The present application also provides a computer program product, and when the computer program product is executed by a computer, the functions of any of the above method embodiments are implemented.

[0319] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a high-density digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0320] Those of ordinary skill in the art can understand that the various numerical numbers such as the first and second involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, nor do they represent the order of precedence.

[0321] At least one in this application can also be described as one or more. The plurality can be two, three, four, or more, and this application does not make any restrictions. In the embodiments of this application, for a technical feature, the technical features in this technical feature are distinguished by "first", "second", "third", "A", "B", "C", and "D", etc. There is no order of precedence or size order among the technical features described by the "first", "second", "third", "A", "B", "C", and "D".

[0322] The corresponding relationships shown in each table in this application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited in this application. When configuring the corresponding relationships between the configuration information and each parameter, it is not necessarily required to configure all the corresponding relationships shown in each table. For example, in the tables of this application, the corresponding relationships shown in some rows can also not be configured. Another example is that appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also be other names understandable by the communication device, and the values or representation methods of the parameters can also be other values or representation methods understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash maps, etc.

[0323] The predefined in this application can be understood as definition, pre - definition, storage, pre - storage, pre - negotiation, pre - configuration, solidification, or pre - firing.

[0324] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0325] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the above - described systems, devices, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0326] As mentioned above, the above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claimed rights.

Claims

1. A method for configuring system information, characterized in that, the method is executed by a connected-mode relay user equipment (UE), and includes: receiving and storing system information (SIB) sent by a network device; after receiving and storing the system information sent by the network device, further includes: obtaining a first request message sent by a remote UE, where the first request message carries a system information identifier of specific system information requested by the remote UE; in response to the fact that the specific system information is not stored effectively in the relay UE, sending a second request message to the network device, where the second request message is used to request the specific system information from the network device; wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble; the sending the second request message to the network device includes: in response to the specific system information not belonging to the first type of system information, and the network device configuring a corresponding preamble for the specific system information, sending the preamble corresponding to the specific system information to the network device; wherein, further includes: receiving the specific system information sent by the network device; forwarding the specific system information to the remote UE.

2. The method according to claim 1, characterized in that, after receiving and storing the system information sent by the network device, further includes: in response to the fact that the specific system information is stored effectively in the relay UE, sending the effectively stored specific system information in the relay UE to the remote UE.

3. The method according to claim 1, characterized in that, the method for receiving the system information sent by the network device includes at least one or more of the following: receiving the first type of system information sent by the network device based on a request of a third system information request message, where the first type of system information includes: system information that a connected-mode relay UE can indicate through the third system information request message; receiving the system information other than the first type of system information sent by the network device based on a request of a fourth system information request message; receiving the system information other than the first type of system information sent by the network device.

4. The method according to claim 1, characterized in that, the second request message includes a third system information request message or a fourth system information request message; the sending the second request message to the network device includes: in response to the specific system information belonging to the first type of system information, sending the third system information request message to the network device; in response to the specific system information not belonging to the first type of system information, sending the fourth system information request message to the network device.

5. The method according to claim 4, characterized in that, the fourth system information request message includes a radio resource control system information request (RRCSystemInfoRequest); the sending the fourth system information request message to the network device includes: In response to the network device not configuring a corresponding preamble for specific system information, send the RRCSystemInfoRequest to the network device, where the identifier of the specific system information is carried in the RRCSystemInfoRequest.

6. A method for system information configuration, characterized in that, the method is executed by a network device and includes: Send system information to a connected state relay UE, and the system information is stored by the connected state relay UE; After sending the system information to the connected state relay UE, it further includes: Receive a second request message sent by the connected state relay UE, where the second request message is used to request specific system information; wherein, the second request message is sent to the network device when the connected state relay UE obtains a first request message sent by a remote UE and there is no valid specific system information stored in the connected state relay UE, and the system information identifier of the specific system information requested by the remote UE is carried in the first request message; Send the specific system information to the connected state relay UE, and the specific system information is forwarded by the connected state relay UE to the remote UE; wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble; the receiving the second request message sent by the connected state relay UE includes: In response to the specific system information not belonging to the first type of system information and the network device configuring a corresponding preamble for the specific system information, receive the preamble corresponding to the specific system information sent by the connected state relay UE; The sending the specific system information to the connected state relay UE includes: In response to the received second request message being a preamble, determine the system information corresponding to the preamble as the specific system information and send it to the connected state relay UE.

7. The method according to claim 6, characterized in that, The method for sending system information to the connected state relay UE includes at least one of the following: Based on the request of a third system information request message, send the first type of system information to the relay UE, where the first type of system information includes: the system information that the connected state relay UE can indicate through the third system information request message; Based on the request of a fourth system information request message, send system information other than the first type of system information to the relay UE; Send system information other than the first type of system information to the relay UE.

8. The method according to claim 6, characterized in that, The second request message includes a third system information request message or a fourth system information request message.

9. The method according to claim 8, characterized in that, The fourth system information request message includes an RRCSystemInfoRequest; The sending the specific system information to the connected state relay UE includes: In response to the received fourth system information request message being an RRCSystemInfoRequest, the specific system information is sent to the connected relay UE based on the identifier of the specific system information carried in the RRCSystemInfoRequest.

10. The method according to claim 6, wherein, sending the system information to the connected relay UE includes: in response to determining that a UE is a connected relay UE, sending the system information to the connected relay UE.

11. The method according to claim 10, wherein, the method for determining that a UE is a connected relay UE includes at least one or more of the following; in response to determining that a UE requests a resource for a relay discovery message, determining that the UE is a connected relay UE; in response to determining that a UE requests a resource for a relay communication, determining that the UE is a connected relay UE; in response to determining that a UE sends a paging identifier of a remote UE, determining that the UE is a connected relay UE.

12. A system information configuration method, wherein, the method is executed by a remote UE and includes: sending a first request message to a connected relay UE, the first request message carrying a system information identifier of specific system information requested by the remote UE; wherein, the connected relay UE stores system information, and the system information stored in the connected relay UE is sent by a network device; receiving the specific system information sent by the connected relay UE; wherein, the specific system information is obtained by the connected relay UE by sending a second request message to the network device, and the second request message is sent by the connected relay UE to the network device when the connected relay UE does not store valid specific system information, and the second request message is used to request the specific system information from the network device; wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, the preamble is used to request the system information corresponding to the preamble, and the specific system information is requested by the connected relay UE based on the preamble corresponding to the specific system information, wherein, the preamble corresponding to the specific system information is sent by the connected relay UE to the network device when the specific system information does not belong to the first type of system information and the network device configures a corresponding preamble for the specific system information.

13. A communication device, wherein, applied to a connected relay UE, the device includes: a transceiver module, configured to receive and store system information sent by a network device; the device is further configured to: obtain a first request message sent by a remote UE, the first request message carrying a system information identifier of specific system information requested by the remote UE; In response to the fact that the specific system information is not stored effectively in the relay UE, send a second request message to the network device, where the second request message is used to request the specific system information from the network device; Wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble; the sending the second request message to the network device includes: In response to the specific system information not belonging to the first type of system information and the network device configuring a corresponding preamble for the specific system information, send the preamble corresponding to the specific system information to the network device; Wherein, the device is further configured to: Receive the specific system information sent by the network device; Forward the specific system information to the remote UE.

14. A communication device, Characterized in that, Applied to a network device, the device includes: A transceiver module, configured to send system information to a connected relay UE, and the system information is stored by the connected relay UE; After sending the system information to the connected relay UE, the device is further configured to: Receive a second request message sent by the connected relay UE, where the second request message is used to request specific system information; wherein, the second request message is sent to the network device when the connected relay UE obtains a first request message sent by a remote UE and there is no effectively stored specific system information in the connected relay UE, and the system information identifier of the specific system information requested by the remote UE is carried in the first request message; Send the specific system information to the connected relay UE, and the specific system information is forwarded by the connected relay UE to the remote UE; Wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, and the preamble is used to request the system information corresponding to the preamble; the receiving the second request message sent by the connected relay UE includes: In response to the specific system information not belonging to the first type of system information and the network device configuring a corresponding preamble for the specific system information, receive the preamble corresponding to the specific system information sent by the connected relay UE; The sending the specific system information to the connected relay UE includes: In response to the received second request message being a preamble, determine the system information corresponding to the preamble as the specific system information and send it to the connected relay UE.

15. A communication device, Characterized in that, Applied to a remote UE, the device includes: A transceiver module, configured to send a first request message to a connected relay UE, where the first request message carries a system information identifier of specific system information requested by a remote UE; wherein, the connected relay UE stores system information, and the system information stored in the connected relay UE is sent by a network device; A transceiver module, configured to receive the specific system information sent by the connected relay UE; wherein, the specific system information is obtained by the connected relay UE by sending a second request message to the network device, and the second request message is sent by the connected relay UE to the network device when the connected relay UE does not store valid specific system information, and the second request message is used to request the specific system information from the network device; Wherein, the second request message includes a preamble, and there is a corresponding relationship between the preamble and the system information, the preamble is used to request the system information corresponding to the preamble, and the specific system information is requested by the connected relay UE based on the preamble corresponding to the specific system information, wherein, the preamble corresponding to the specific system information is sent by the connected relay UE to the network device when the specific system information does not belong to the first type of system information and the network device configures a corresponding preamble for the specific system information.

16. A communication device, characterized in that, the device includes a processor and a memory, wherein, in the memory stores a computer program, and the processor executes the computer program stored in the memory to enable the device to execute the method according to any one of claims 1 to 5 or the method according to any one of claims 6 to 11 or the method according to claim 12.

17. A communication device, characterized in that, comprises: a processor and an interface circuit, wherein, the interface circuit is configured to receive code instructions and transmit them to the processor; the processor is configured to run the code instructions to execute the method according to any one of claims 1 to 5 or the method according to any one of claims 6 to 11 or the method according to claim 12.

18. A computer-readable storage medium, configured to store instructions, when the instructions are executed, enabling the method according to any one of claims 1 to 5 or the method according to any one of claims 6 to 11 or the method according to claim 12 to be implemented.

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