A method and device for sending system information

Abstract

A method and device for sending system information, relating to the field of communication technology. The method comprises: when there is first system information to be forwarded, the first device monitors whether there is system information forwarded by a second device. The distance between the second device and the first device is less than or equal to the first threshold, or the second device is located within the coverage range of the network device serving the first device; if the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information. Before forwarding the system information, the first device first monitors whether the surrounding second device has forwarded the system information. When the second device does not forward the system information, the first device forwards it, which helps to reduce the possibility of repeated broadcasting of the system information by different devices, thereby effectively reducing system congestion and waste of system resources.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for sending system information. Background Art

[0002] In the sidelink (SL) relay scenario, the existing protocol supports the relay user equipment (device) to forward the system information of the serving cell to its remote UE, and the device can send the system information to the remote UE through broadcast, multicast or proprietary signaling. If all devices forward the system information of the serving cell by broadcast, then for one of the system information, different devices may broadcast the system information repeatedly. When there are a large number of devices in the network, this situation will cause system congestion and waste of resources. Summary of the invention

[0003] The embodiment of the present application provides a method and apparatus for sending system information, so that before a first device forwards the system information, it first listens and then forwards it, which can effectively reduce system congestion and waste of system resources.

[0004] In a first aspect, an embodiment of the present application provides a method for sending system information, the method comprising:

[0005] When there is first system information to be forwarded, the first device monitors whether there is system information forwarded by a second device, where the distance between the second device and the first device is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the first device;

[0006] If the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information.

[0007] In a second aspect, an embodiment of the present application provides a device for sending system information, the device comprising:

[0008] a processing unit, configured to, when there is first system information to be forwarded, monitor whether there is system information forwarded by a second device, the distance between the second device and the apparatus being less than or equal to a first threshold, or the second device being located within a coverage range of a network device serving the apparatus;

[0009] The receiving unit is configured to forward the first system information when the processing unit fails to monitor the system information forwarded by the second device.

[0010] In a third aspect, an embodiment of the present application provides a network device, which is used to support the first device to implement any method described in the first aspect.

[0011] In a fourth aspect, an embodiment of the present application provides a chip, wherein the chip is used to monitor whether there is system information forwarded by a second device when there is first system information to be forwarded, and the distance between the second device and the device where the chip is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip is located;

[0012] The chip is further configured to forward the first system information when no system information forwarded by the second device is monitored.

[0013] In a fifth aspect, an embodiment of the present application provides a chip module, wherein the chip module includes a transceiver component and a chip, wherein:

[0014] The chip is used to monitor whether there is system information forwarded by a second device when there is first system information to be forwarded, the distance between the second device and the device where the chip module is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip module is located;

[0015] The transceiver component is used to forward the first system information when the chip does not monitor the system information forwarded by the second device.

[0016] In a sixth aspect, an embodiment of the present application provides an electronic device, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program comprises instructions for executing the steps in any one of the methods described in the first aspect above.

[0017] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which contains a computer program. When the computer program runs on an electronic device, the method described in any one of the above-mentioned first aspects is executed.

[0018] In an eighth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0019] The technical solution provided by the present application is that when there is first system information to be forwarded, the first device monitors whether there is system information forwarded by a second device, and the distance between the second device and the first device is less than or equal to the first threshold, or the second device is located within the coverage range of the network device serving the first device; if the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information. Before forwarding the system information, the first device first monitors whether the surrounding second device has forwarded the system information. When the second device does not forward the system information, the first device forwards it, which helps to reduce the possibility of repeated broadcasting of the system information by different devices, thereby effectively reducing system congestion and waste of system resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a wireless communication system provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of another wireless communication system provided in an embodiment of the present application;

[0023] Figure 3 It is a flowchart of a method for sending system information provided by an embodiment of the present application;

[0024] Figure 4 It is a flowchart of another method for sending system information provided by an embodiment of the present application;

[0025] Figure 5 It is a structural diagram of a device for sending system information provided by an embodiment of the present application;

[0026] Figure 6 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0028] It should be understood that the technical solutions of the embodiments of the present application can be applied to Long Term Evolution (LTE) systems, 5G communication systems (such as New Radio (NR)), communication systems integrating multiple communication technologies (such as communication systems integrating LTE technology and NR technology), or various new communication systems in the future, such as 6G communication systems, 7G communication systems, etc., and the embodiments of the present application are not limited to this. The technical solutions of the embodiments of the present application are also applicable to different network architectures, including but not limited to relay network architectures, dual-link architectures, vehicle-to-everything communication architectures, etc.

[0029] It should be noted that the number of connections supported by traditional wireless communication systems is limited and easy to implement. However, with the development of communication technology, wireless communication systems can not only support traditional wireless communication systems, but also support device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), vehicle to vehicle (V2V) communication, vehicle to everything (V2X) communication, narrow band internet of things (NB-IoT) communication, etc. Therefore, the technical solution of the embodiment of the present application can also be applied to the above wireless communication system.

[0030] Optionally, the wireless communication system of the embodiment of the present application can be applied to beamforming (beamforming), carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios, etc.

[0031] The embodiment of the present application relates to a relay user device. The relay user device includes a device with wireless communication function, and the relay user device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in smart home, etc. The relay user device can also be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, a terminal device in a future 5G network, or a terminal device in a future evolved public land mobile communication network (Public Land Mobile Network, referred to as PLMN), etc. Specifically, the relay user equipment can be a user device, an access terminal, a user unit, a user station, a mobile station, a mobile station (Mobile Station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (Wireless Local Loop, WLL) station, a Personal Digital Assistant (Personal Digital Assistant, PDA), a terminal device in a 5G network or a future evolution network, etc., and the embodiments of the present application are not limited to this.

[0032] The embodiments of the present application relate to network devices. The network device may be a device for communicating with a terminal device, including a device of a radio access network (RAN). For example, the network device may also be a node device in a wireless local area network (WLAN), such as an access controller (AC), a gateway, or a WIFI access point (AP); for another example, the network device may also be an access network device (such as gNB, CU, DU) in an NR system, and an evolving node B (ng-eNB), wherein the gNB and the terminal device communicate using NR technology, and the ng-eNB and the terminal device communicate using E-UTRA (Evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB may be connected to the 5G core network. The network device in the embodiments of the present application also includes devices that provide network device functions in future new communication systems, etc.

[0033] For example, see Figure 1 , Figure 1 A schematic diagram of a wireless communication system provided in an embodiment of the present application. Figure 1 As shown, the wireless communication system 10 may include a remote terminal 110, a relay user equipment 120 and a network device 130. The remote terminal 110 (Remote UE) may be within or outside the coverage of the network device 130, so the remote terminal 110 may forward system information, signaling or data through the relay user equipment 120 within the coverage of the network device 130. Among them, the relay user equipment 120 (device) is a terminal device capable of providing relay service capabilities, and the relay user equipment 120 may be a relay user equipment (i.e., target relay user equipment) determined by the remote terminal 110 through the relay discovery process, or the relay user equipment 120 may be a relay user equipment (i.e., target relay user equipment) where the remote terminal 110 resides. A network device may include multiple relay user equipments 120, and each relay user equipment 120 may provide relay services for multiple remote terminals 110.

[0034] It should be noted that the relay user equipment 120 and the network device 130 can establish communication through the Uu interface. When the remote terminal 110 is in the RRC connection state (RRC_CONNECTED), the remote terminal 110 and the relay user equipment 120 establish a communication connection through the PC5 interface, and the cell corresponding to the network device 130 is the service cell of the relay user equipment 120. At this time, the relay user equipment 120 and the network device 130 can adopt the existing communication mechanism between the terminal and the service cell, and the relay user equipment 120 and the remote terminal 110 can send system information, signaling or data through a direct communication mechanism. For downlink, the relay user equipment 120 can forward the system information, signaling or data sent by the network device 130 to the remote terminal 110 to the remote terminal 110; for uplink, the relay user equipment 120 can forward the signaling or data sent by the remote terminal 110 to the network device 130 to the network device 130.

[0035] In addition, when the remote terminal 110 is in the RRC idle state (RRC_IDLE) or the RRC inactive state (RRC_INACTIVE), the remote terminal 110 resides under the relay user equipment 120. At this time, although there is no communication connection established between the remote terminal 110 and the relay user equipment 120, the remote terminal 110 can also forward system information or signaling through the relay user equipment 120.

[0036] Optionally, the wireless communication system 10 may further include multiple network devices, and the coverage area of ​​each network device may include a certain number of remote terminals and / or a certain number of relay user equipments, which is not specifically limited here.

[0037] Optionally, the wireless communication system 10 may also include other network entities such as a network controller and a mobility management entity, which are not specifically limited here.

[0038] Below, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0039] 1. Proximity-based services (ProSe) communications

[0040] The 3rd Generation Partnership Project (3GPP) Service and System Aspects (SA) group started the research on ProSe communication in Release 12. In ProSe communication, terminals can communicate directly with each other through the PC5 interface, which is a direct interface between terminals, and the communication interface between the terminal and the network device is called the Uu interface.

[0041] Since there are coverage blind spots in actual network deployment, terminals in the coverage blind spots cannot communicate with network devices. Therefore, the SA group of 3GPP introduced the communication architecture of relay user equipment (UE-to-network relay) when studying Prose communication, and improved network coverage by forwarding data services through relay user equipment to solve the problem of coverage blind spots. The relay user equipment can be within the coverage range of the network device or outside the coverage range.

[0042] For example, see Figure 2 . Since the terminal device 210A is outside the coverage of the network device 220, the terminal device 210A can access the network through the terminal 220B within the coverage of the network device 220. Among them, the terminal device 220B is a relay user equipment (or UE-to-network relay) that can provide relay service capabilities. In addition, the terminal device 210C and the terminal device 210D can communicate directly through the PC5 interface, and the terminal device 210E and the terminal device 210G can communicate through the terminal device 210F. Among them, the terminal device 220F is a relay terminal (or UE-to-UE relay) that can provide relay service capabilities.

[0043] 2. Sidelink (SL)

[0044] SL communication is a wireless communication directly between two or more terminal devices. In SL communication, two or more terminal devices that are geographically close to each other can communicate directly without going through the eNodeB or BS or core network. Therefore, data transmission in SL communication is different from typical cellular network communication (for example, sending data to the BS (i.e., uplink transmission) or receiving data from the BS (i.e., downlink transmission)). In SL communication, data is sent directly from the source terminal device (i.e., the sending terminal device) to the target terminal device (i.e., the receiving terminal device) through a unified air interface such as the PC5 interface without going through the BS.

[0045] 3. System information (SI)

[0046] The NR communication system classifies the system information of the NR Uu interface more clearly based on the LTE communication system, thereby ensuring that the terminal can normally reside in the cell that provides services for it, providing the necessary common channel information for it to access the network and ensuring its mobility in a non-connected state.

[0047] According to the importance of system information content and the different dissemination methods, system information can be divided into a master information block (MIB) and a series of system information blocks (SIBs).

[0048] In order to arrange the utilization of network resources more reasonably, the propagation mode of system information can be divided into periodic broadcast and on-demand request transmission based on the terminal. Among them, in the periodic broadcast mode, the base station can always send the SI within the system information time window (SI-window) corresponding to the SI calculated by it. In the on-demand request transmission based on the terminal, if the terminal does not request to send SI, the base station does not send the SI to the terminal; if the terminal requests to send SI, the base station will send the SI to the terminal at a certain time within the system information time window corresponding to the calculated SI.

[0049] In addition, system information can be divided into MIB and a series of SIBs, and can also be divided into minimum system information (MinimumSI) and other system information (Other SI). Among them, Minimum SI can include MIB and SIB1, which are transmitted through broadcast channel (BCH) and downlink shared channel (DL-SCH) respectively, and their propagation mode is periodic broadcast. Other SIBs are collectively referred to as Other SI, and their propagation mode can be periodic broadcast or based on terminal on-demand request. At the same time, the terminal can only stay or access the current cell normally when it reads the MinimumSI of the current cell. If the base station does not broadcast the complete Minimum SI, the current cell is not allowed to stay.

[0050] For MIB, MIB contains information related to the cell barring status and multiple physical layer parameters required to obtain SIB1 for the current cell. Among them, the transmission period of MIB is fixed at 80ms, and the same information can be repeatedly transmitted within 80ms. If the terminal receives MIB, it stores MIB and performs the following judgment process according to its content: when the terminal is in idle state, inactive state or connected state, if the current cell is barred, it judges whether to allow cell reselection for other cells at the same frequency point according to the intraFreqReselection information; if the current cell allows access, it obtains the time-frequency parameters of the control channel indicating the reception of SIB1, etc.

[0051] For SIB1, SIB1 contains some special system setting information for the current cell, such as the parameters required for initial access, the current cell common configuration, and the scheduling information of each SIB in Other SI. Among them, the scheduling information of each SIB in Other SI includes Other SI scheduling and usage rule parameters, status indication information of whether each SIB is currently transmitting, system information area identifier (ID), and configuration status of SIBs that need to be broadcast on request.

[0052] In addition, the transmission period of SIB1 is 160ms, and the same information can be repeatedly sent within 160ms, while the default repetition period is 20ms. If the terminal receives SIB1, it stores SIB1 and performs the following processes according to its content: storing cell access related information (including plmn-IdentityList, trackingAreaCode and cellIdentity, etc.); applying the common configuration parameters of the serving cell; and checking the validity of each SIB in Other SI. If the terminal has saved a valid version, it uses this version; otherwise, the terminal decides whether to directly read the system information or initiate a request to the base station based on the scheduling information of each SIB in Other SI in SIB1 and the broadcast of the currently required SIBs.

[0053] For Other SI, one Other SI may include one or more SIBs (such as SIB2 / SIB3, etc.). The transmission of each SIB in the Other SI is carried out through dynamic scheduling within a periodic system information time window (SI-window). Among them, SIBs with the same period in Other SI can be sent in the same SI, and each SI corresponds to an SI-window, and the SI-window lengths of different SIs are consistent, but they are not allowed to overlap with each other.

[0054] If the terminal wants to obtain Other SI, it needs to first determine the order value of each SIB according to the scheduling information of each SIB in Other SI in SIB1, and then calculate the SI-window position corresponding to each SIB. The base station can send the corresponding SIB multiple times in one SI-window, and if the terminal fails to obtain it successfully in the SI-window, it can continue to obtain it in the subsequent SI-window corresponding to the SIB.

[0055] The terminal needs to store the MIB, SIB1 or other SIBs obtained from the current resident or serving cell. At the same time, each system information version is valid for a maximum of 3 hours after its validity is confirmed, and will be deleted by the terminal after this time.

[0056] Both MIB and SIB1 are cell-level specific messages, that is, after the terminal accesses or resides in the current cell, it must ensure the correctness and validity of the MIB and SIB1 of the current cell.

[0057] Each SIB in Other SI can be configured as cell-level or regional-level system information. Among them, cell-level system information is only used in a certain cell and becomes invalid after the terminal leaves the cell; regional-level system information is universal in the set SI area, and an SI area can contain one or more cells.

[0058] In Release 17, NR also introduced the UE-to-network Relay communication architecture. In relay communication, in addition to relaying data services for its remote UE, the device can also relay the system information of the service cell for its remote UE, in order to provide the remote UE with the necessary common channel information and other network configuration information required to access the network. In the sidelink relay scenario, the existing protocol supports the device to forward the system information of the service cell to the remote UE, and the device can send the system information to the remote UE through broadcast, multicast or proprietary signaling. If all devices forward the system information of the service cell by broadcasting, then for one of the system information, different devices may broadcast the system information repeatedly. When there are a large number of devices in the network, this situation will cause system congestion and waste of resources.

[0059] In order to solve the above problems, an embodiment of the present application proposes a method for sending system information. When the first device needs to forward certain system information, it can first listen to whether there are other devices around to forward system information. When the system information forwarded by other devices is not heard, the first device forwards the system information that it needs to forward, which helps to reduce the possibility of different devices repeatedly broadcasting the system information, thereby effectively reducing system congestion and waste of system resources.

[0060] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] Take the device to forward the first system information as the first device as an example. Figure 3 , Figure 3 is a flow chart of a method for sending system information provided by an embodiment of the present application. The method can be used in Figure 1 The communication system shown in the figure is executed, and specifically includes the following steps:

[0062] S310: When the first device has first system information to be forwarded, the first device monitors whether there is system information forwarded by the second device.

[0063] For example, the distance between the second device and the first device is less than or equal to the first threshold. That is, during the monitoring process, the first device can monitor whether there is system information forwarded by other devices within a certain distance range. This helps to reduce the power consumption of the first device. For example, the first device monitors whether there is system information forwarded by other devices within the first range. The first range is a circular area with the first device as the center and the radius as the first threshold. In some embodiments, the first threshold may be configured by the network device, or it may be set autonomously by the first device, or the first threshold may be predefined before the device leaves the factory, and the embodiment of the present application does not limit this. For example, the value of the first threshold may be 10Km (kilometers), 15Km, 20Km, etc., which is not limited.

[0064] In other embodiments, the second device may also be located within the coverage of a network device (such as a base station) serving the first device.

[0065] The first device and the second device may be a relay terminal or a relay user equipment (Relay UE) capable of providing relay service capabilities. Specifically, the first device is a relay user equipment where a remote device (Remote UE) resides, and can forward system information, signaling or data sent by a network device. The second device is a relay user equipment whose distance from the first device is less than or equal to a first threshold.

[0066] S320: If the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information.

[0067] In an embodiment of the present application, when the first device has first system information to be forwarded, if the first device does not hear the system information forwarded by the second device, the first device then forwards the first system information that it needs to forward, thereby helping to reduce the possibility of repeated forwarding of system information by different devices, and further helping to reduce system congestion and waste of system resources.

[0068] For example, a service cell may include multiple devices, each of which can serve one or more Remote UEs. Usually, after multiple devices receive system information sent by a network device, these multiple devices need to forward the above system information, so that the Remote UE located in the transmission range of multiple devices can receive the system information forwarded by the multiple devices. In an embodiment of the present application, when a first device receives the first system information sent by a network device, the first device can adopt a method of first listening and then forwarding, that is, first listening to whether there is a second device around to forward the system information, and then further determining whether to forward its own first system information to be sent, thereby helping to reduce the possibility of repeated forwarding of system information by different devices, and further helping to reduce system congestion and waste of system resources.

[0069] Further, in some embodiments, the first device may monitor whether there is system information forwarded by the second device based on the following method:

[0070] Method 1: When the first device has first system information to be forwarded, it monitors whether there is system information forwarded by the second device within the monitoring time, thereby helping to reduce the monitoring overhead of the first device and meet the needs of remote devices in different application scenarios.

[0071] For example, in the embodiments of the present application, the monitoring duration can satisfy one of the following methods: the monitoring duration is a period of time within a preset time, the monitoring duration is configured by the network, the monitoring duration is pre-configured by the system, the monitoring duration is specified by the standard protocol, the monitoring duration is determined by the timeout duration of a preset timer, and the preset time is configured by the network, specified by the standard protocol, or pre-configured by the system.

[0072] It should be noted that the monitoring duration of the embodiment of the present application may be indicated by the network device to the first device, may be pre-configured by the system, may be specified by the standard protocol specified by 3GPP, may be determined by the timeout duration of a preset timer, or may be a period of time within a preset time. Among them, for the preset timer, it can be understood that when the first device forwards the first system information, the first device may first start the preset timer, and before the preset timer times out, monitor whether there are other relay user devices within its communication range broadcasting the first system information, and the preset timer may be a network configuration or a system pre-configuration. For the preset time, it can be understood that when the first relay forwards the first system information, it may first randomly monitor for a period of time t (i.e., the monitoring duration), t∈(0,X], X represents the preset time. It can be seen that the monitoring duration can be configured in a variety of ways, which is conducive to achieving diversity in system configuration during the system information request process.

[0073] Method 2: When the first system information to be forwarded includes necessary system information, the first device monitors whether there is system information forwarded by the second device.

[0074] For example, the first system information includes essential system information (essential SIBs) that the first device actively forwards to the Remote UE. The necessary system information can be understood as the system information required for the Remote UE to normally reside in or access the current cell, and its propagation method can be periodic broadcast, or multicast, or sent through dedicated signaling, etc. Take periodic broadcast as an example. The network device will periodically broadcast the necessary system information, which will then be actively forwarded to the Remote UE by the first device, so that the terminal can normally reside in or access the current cell. Furthermore, the necessary system information can be actively sent by the network device when the system information is updated, or it can be sent according to the system information request sent by the Remote UE.

[0075] Furthermore, the necessary system information in the embodiment of the present application may include a master information block (such as a MIB indicating a system frame number SFN), a system information block type 1 (such as SIB1 indicating a public land mobile network PLMN and cell information), a system information block type 2 (such as SIB2 indicating cell access prohibition information), and direct communication system information block related information. Among them, the direct communication system information block related information may include LTE device to device further enhancements (furtherenhancements to LTE device to device, FeD2D) system information block related information (such as SIB18 / SIB19).

[0076] In some specific implementations, the granularity of the first system information may be SI or SIB. The first system information may be the SIBs of the current cell sent by the network device actively or according to the request of the Remote UE, or may be the SI containing the SIBs of the current cell sent by the network device actively or according to the request of the Remote UE. The first device may forward necessary system information blocks, such as SIB1, to the Remote UE; or may send some system information blocks SIB or system information SI after the request of the Remote UE. When the serving cell sends system information to the first device, SIB1 is sent separately. For other SIBs, the serving cell transmits the scheduling information of other SIBs indicated in SIB1 through SI. One SI may contain one or more SIBs. For example, the serving cell may transmit SIB2+SIB3 through one SI. If a Remote UE requests SIB2 from the device serving itself, the first device may send SIB2 to the Remote UE or may directly forward the SI containing SIB2+SIB3 received from the serving cell.

[0077] In the embodiment of the present application, different granularities of system information are adopted in different scenarios, which can improve the flexibility and efficiency of network configuration of system information during the system information request process.

[0078] It should be noted that, in the embodiment of the present application, each SIB in the first system information can be configured as cell-level or regional-level system information. Cell-level SIBs are only used in the current cell and become invalid after the Remote UE leaves the current cell; regional-level SIBs are universal in the set system information area, and a system information area can contain one or more cells.

[0079] In addition, in some other embodiments of the present application, when the first device has first system information to be forwarded, if the network device instructs the first device not to monitor system information forwarded by the second device, the first device can directly forward the first system information without monitoring whether there is system information forwarded by the second device. Alternatively, when the first device has first system information to be forwarded, if the first system information does not include necessary system information, the first device can also directly forward the first system information without monitoring whether there is system information forwarded by the second device.

[0080] In addition, in some embodiments, if the first device monitors system information forwarded by the second device (taking the second system information as an example), the first device obtains a first cell identifier, which is a cell identifier of a cell to which the second system information belongs; and compares the first cell identifier with the second cell identifier, which is a cell identifier of a cell to which the first system information belongs. When the first cell identifier is different from the second cell identifier, the first device forwards the first system information.

[0081] In an embodiment of the present application, the first device can obtain a cell identifier (for example, a first cell identifier or a second cell identifier) ​​from the following messages or signaling: PC5 messages between the Remote UE, PC5-RRC signaling, or signaling specified by the standard protocol, such as sidelink control information (SCI) of the physical downlink control channel (PSCCH), RRC signaling, etc.

[0082] Therefore, when the first device monitors the system information forwarded by the second device, the first device can obtain the first cell identifier and compare the first cell identifier with the cell identifier (second cell identifier) ​​of the first system information forwarded by the first device. If the cell identifier corresponding to the system information forwarded by the second device is not the cell identifier of the first system information forwarded by the first device, that is, the first cell identifier and the second cell identifier are different, it means that the system information forwarded by the second device and the target system information to be sent by the first device are not system information of the same cell, so the first device can forward the first system information.

[0083] Optionally, if the first cell identifier is the same as the second cell identifier, the first device may determine whether the second system information is the same as the first system information; if the second system information is different from the first system information, the first device forwards part or all of the first system information.

[0084] In the embodiment of the present application, the second system information is different from the first system information, and may include that the second system information is partially or completely the same as the first system information. For example, the second system information includes information block 1 and information block 2, the first system information includes information block 2 and information block 3, and the second system information is partially different from the first system information. For another example, the second system information includes information block 1 and information block 2, the first system information includes information block 4 and information block 3, and the second system information is completely different from the first system information.

[0085] For example, when the second system information is partially different from the first system information, the first device may forward the portion of the first system information that is different from the second system information. For example, when the second system information includes information block 1 and information block 2, and the first system information includes information block 2 and information block 3, the first device may forward information block 3 and not forward information block 2, thereby helping to reduce signaling overhead.

[0086] Alternatively, for another example, when the second system information is completely different from the first system information, the first device may forward all of the first system information. For example, when the second system information includes information block 1 and information block 2, and the first system information includes information block 4 and information block 3, both information block 4 and information block 3 in the first system information are forwarded by the first device.

[0087] It should be noted that, when the first cell identifier and the second cell identifier are the same, the second system information and the first system information to be sent by the first device belong to the system information of the same cell. The first device can compare the second system information with the first system information to further determine whether the second device has forwarded the first system information that the first device needs to forward.

[0088] For example, the first device may match the information blocks in the second system information with the information blocks in the first system information, respectively. If the information blocks in the second system information partially match or completely do not match the information blocks in the first system information, it means that the second system information is different from the first system information. When the information blocks in the second system information partially match the information blocks in the first system information, the first device may forward the first system information, or the information blocks in the first system information that do not match the information blocks in the second system information. When the information blocks in the second system information completely do not match the information blocks in the first system information, the first device may forward the first system information.

[0089] Further, in some embodiments, if the second system information is partially or completely identical to the first system information, it is determined whether the first signal quality is lower than a first threshold, the first signal quality being the signal quality when the second device forwards the system information forwarded by the second device; if the first signal quality is lower than the first threshold, the first device forwards the first system information.

[0090] Among them, when the information block in the second system information partially matches or completely matches the information block in the first system information, the first device can calculate the first signal quality of the second device. According to the first signal quality of the second device, the first device can know whether the Remote UE can receive the second system information completely and clearly. The first signal quality can be measured by the first device when the second device forwards the system information forwarded by the second device. Exemplarily, the first signal quality can also be measured by the first device according to the reference signal sent by the second device. The first signal quality may include: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Received Signal Strength Indicator (RSSI).

[0091] Specifically, when the quality of the first signal is lower than the first threshold, the Remote UE may not be able to receive or may not be able to completely and clearly receive the system information sent by the second device. Therefore, in order to avoid the problem that the Remote UE does not receive the system information sent by the second device, when the quality of the first signal is lower than the first threshold, the first device forwards the first system information. The first threshold can be configured by the network device, such as -60dBm, -55dBm, -50dBm or -45dBm. The first threshold can also be updated by the first device according to a policy. For example, for a Remote UE with ultra-high-definition streaming media service requirements, its first threshold can be set to -55dBm; for a Remote UE with massive connections, its first threshold can be set to -60dBm.

[0092] Optionally, when the second system information is partially identical to the first system information, that is, the information block in the system information forwarded by the second device matches the information block in the first system information, and the first signal quality is higher than the first threshold, the first device may forward the first system information, or the information block in the first system information that does not match the information block in the system information forwarded by the second device. For example, the first device needs to forward SIB2+SIB3, and the first device monitors that the second device forwards SIB2. At this time, the first device may only forward SIB3 or still forward SIB2+SIB3.

[0093] Optionally, when the system information forwarded by the second device is exactly the same as the first system information, that is, the information blocks in the system information forwarded by the second device all match the information blocks in the first system information, and the first signal quality is higher than the first threshold, the first device cancels the forwarding of the target information message.

[0094] It should be noted that after the first device cancels forwarding of the target information message, if a Remote UE requests the first system information from the network device through the first device, the first device may forward the first system information to the Remote UE again.

[0095] It can be seen that the method for sending system information by a device proposed in the embodiment of the present application is that when there is first system information to be forwarded, the first device monitors whether there is system information forwarded by a second device, and the distance between the second device and the first device is less than or equal to the first threshold, or the second device is located within the coverage range of the network device serving the first device; if the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information. Before forwarding the system information, the first device first monitors whether the surrounding second device has forwarded the system information. When the second device does not forward the system information, the first device forwards it, which helps to reduce the possibility of repeated broadcasting of the system information by different devices, thereby effectively reducing system congestion and waste of system resources.

[0096] Based on the above examples, the present application also provides a flowchart of a method for sending system information, such as Figure 4 As shown, the specific steps include:

[0097] S410, the network device sends first system information and first indication information to the first device, the first indication information is used to instruct the first device to start monitoring the second device. For example, the distance between the second device and the first device is less than or equal to the first threshold, or the second device is located within the coverage of the network device serving the first device.

[0098] The first indication information is used to instruct the first device to start monitoring the second device, which can be understood as: the first indication information is used to instruct the first device to monitor whether there is system information forwarded by the second device.

[0099] In an embodiment of the present application, before the network device sends the first system information, the network device may configure whether the relay device needs to adopt a method of first listening and then forwarding when forwarding the system information of the serving cell.

[0100] Specifically, when the number of relay devices in the service cell is greater than the configured threshold, the network device can configure the relay device to forward the system information in a manner of first listening and then forwarding, that is, the first indication information is used to instruct the first device to start monitoring the second device, thereby reducing the first device from repeatedly sending system information and avoiding the formation of a signaling storm. When the number of relay devices in the service cell is less than or equal to the configured threshold, the network device can configure the relay device to turn off the function of first listening and then forwarding the system information, that is, the first indication information is used to instruct the first device not to start monitoring the second device. In this case, when the first device receives the system information sent by the network device, it can directly forward it without adopting the method of first listening and then forwarding.

[0101] In an embodiment of the present application, the network device can flexibly enable or disable the function of the relay device to first monitor and then forward system information according to the number of relay devices in the service cell, thereby improving the utilization rate of system resources.

[0102] S420: After receiving the first indication information and the first system information from the network device, the first device monitors whether there is system information forwarded by the second device.

[0103] Optionally, the first indication information may also be used to indicate the monitoring duration.

[0104] In some scenarios, the Remote UE may have strict requirements on the delay of the system information, so the network device may configure the monitoring time of the first device to monitor the second device to ensure that the requirements of the Remote UE can be met.

[0105] Optionally, the monitoring whether there is system information forwarded by the second device includes: monitoring whether there is system information forwarded by the second device within the monitoring duration.

[0106] Specifically, after the first device receives the first indication information and the first system information, if the first device starts monitoring the second device, the first device monitors the second device within the monitoring duration to meet the needs of the Remote UE and reduce the power consumption of the first device.

[0107] Exemplarily, the monitoring duration may be a random duration t, t∈(0,X], where X represents a preset time, and X may be specified by a standard or configured by a network device. According to different application scenarios, network devices may be configured with different monitoring durations. The monitoring duration may also be a preset time of a fixed duration, which is not limited in comparison to the embodiments of the present application.

[0108] In a possible implementation, the method further includes: the first device receives second indication information sent by the network device, the second indication information is used to instruct the first device not to monitor the system information forwarded by the second device, and the first Relay forwards the first system information.

[0109] Specifically, when the number of devices in the serving cell is less than or equal to the configured threshold, the network device sends a first indication message to instruct the first device to turn off monitoring of the second device. Therefore, when the first device receives the first system information, the first device directly forwards the first system information without the need to adopt the method of first monitoring and then forwarding.

[0110] Exemplarily, the network device may carry the first indication information and / or the second indication information in configuration information or other information (such as newly defined information or high-layer signaling, etc.) and send it to the first device.

[0111] S430: If the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information.

[0112] The specific implementation of S420-S430 can refer to the above Figure 3 The specific implementation method is not described here.

[0113] It can be seen that in the method for sending system information by a device provided in an embodiment of the present application, the first device determines whether to start monitoring the second device according to the first indication information of the network device, so that the first device can forward the system information in different ways according to the scenario, thereby improving the utilization rate of system resources; and when the first device starts monitoring the second device, before forwarding the system information, it first monitors whether the surrounding second devices have forwarded the system information. When the second device does not forward the system information, the first device forwards it, which helps to reduce the possibility of different devices repeatedly broadcasting the system information, thereby effectively reducing system congestion and waste of system resources.

[0114] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method side. It is understandable that in order to realize the above functions, the relay user equipment includes a hardware structure and / or software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0115] The embodiment of the present application can divide the relay user equipment into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is schematic, which is only a logical function division, and there may be other division methods in actual implementation.

[0116] See also Figure 5 , Figure 5 1 is a block diagram of the functional units of a device for sending system information provided by an embodiment of the present application. Figure 5 As shown, the apparatus 500 is applied to the above-mentioned first device, and the apparatus 500 includes: a processing unit 510 and a transceiver unit 520, wherein:

[0117] The processing unit 510 is configured to monitor whether there is system information forwarded by a second device when there is first system information to be forwarded, the distance between the second device and the apparatus 500 being less than or equal to a first threshold, or the second device being located within the coverage range of a network device serving the apparatus 500;

[0118] The transceiver unit 520 is configured to forward the first system information if the processing unit 510 fails to monitor the system information forwarded by the second device.

[0119] Optionally, the transceiver unit 520 is further used to: receive first indication information sent by the network device, where the first indication information is used to instruct the processing unit 510 to monitor system information forwarded by the second device.

[0120] Optionally, the first indication information is also used to indicate the monitoring duration;

[0121] In terms of the device 500 monitoring whether there is system information forwarded by a second device when there is first system information to be forwarded, the processing unit 510 is specifically used to: when there is first system information to be forwarded, monitor whether there is system information forwarded by the second device within the monitoring time period.

[0122] Optionally, the transceiver unit 520 is further used to: receive second indication information sent by the network device, where the second indication information is used to instruct the processing unit 510 not to monitor the system information forwarded by the second device; and forward the first system information.

[0123] Optionally, the processing unit 510 is further configured to: if system information forwarded by a second device is monitored, obtain a first cell identifier, where the first cell identifier is a cell identifier of a cell to which the second system information belongs;

[0124] The transceiver unit 520 is further configured to: forward the first system information if the first cell identifier is different from the second cell identifier, and the second cell identifier is a cell identifier of a cell to which the first system information belongs.

[0125] Optionally, the processing unit 510 is further configured to: when the first cell identifier is the same as the second cell identifier, determine whether the system information forwarded by the second device is the same as the first system information;

[0126] The transceiver unit 520 is further configured to: if the second system information is different from the first system information, forward part or all of the first system information.

[0127] Optionally, the processing unit 510 is further configured to: if the system information forwarded by the second device is partially or completely identical to the first system information, determine whether the first signal quality is lower than a first threshold, where the first signal quality is the signal quality when the second device forwards the system information forwarded by the second device;

[0128] The transceiver unit 520 is further configured to: forward the first system information if the first signal quality is lower than the first threshold.

[0129] Optionally, when there is first system information to be sent, the processing unit 510 monitors whether there is system information forwarded by the second device. The processing unit 510 is also used to: when there is first system information to be sent and the first system information includes necessary system information, monitor whether there is system information forwarded by the second device.

[0130] It can be understood that the functions of each program module of the device for sending system information in the embodiment of the present application can be specifically implemented according to the method in the above method embodiment, and its specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

[0131] It should be understood that the device 500 here is embodied in the form of a functional unit. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a merged logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art can understand that the device 500 can be specifically the first device in the above-mentioned embodiment, and the device 500 can be used to execute the various processes and / or steps corresponding to the first device in the above-mentioned method embodiment. To avoid repetition, it will not be repeated here.

[0132] The apparatus 500 of each of the above schemes has the function of implementing the corresponding steps performed by the first device in the above method; the function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the processing unit 510 can be replaced by a processor, and the transceiver unit 520 can be replaced by a transmitter and a receiver, respectively performing the transceiver operations and related processing operations in each method embodiment.

[0133] In the embodiments of the present application, Figure 5 The device 500 in the embodiment may also be a chip, a chip module, a UE or a chip system, for example, a system on chip (SoC). Correspondingly, the transceiver unit may be a transceiver circuit of the chip, which is not limited here.

[0134] See also Figure 6 , Figure 6 It is a structural diagram of an electronic device provided in an embodiment of the present application, and the electronic device includes: one or more processors, one or more memories, one or more communication interfaces, and one or more programs; the one or more programs are stored in the memories and are configured to be executed by the one or more processors.

[0135] The above program includes instructions for performing the following steps:

[0136] When there is first system information to be forwarded, monitoring whether there is system information forwarded by a second device, where the distance between the second device and the electronic device is less than or equal to a first threshold, or the second device is within the coverage range of a network device serving the electronic device;

[0137] If the electronic device does not monitor the system information forwarded by the second device, the electronic device forwards the first system information.

[0138] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0139] It should be understood that the above-mentioned memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0140] In the embodiment of the present application, the processor of the above-mentioned device may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0141] It should be understood that the "at least one" involved in the embodiments of the present application refers to one or more, and "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0142] Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects. For example, the first information and the second information are only used to distinguish different information, and do not indicate the difference in content, priority, sending order or importance of the two types of information.

[0143] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software. The steps of the method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software units in a processor for execution. The software unit can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor executes the instructions in the memory, and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0144] An embodiment of the present application also provides a network device, which is used to support the first device to implement part or all of the steps of any method recorded in the above method embodiment.

[0145] An embodiment of the present application also provides a chip, which is used to monitor whether there is system information forwarded by a second device when there is first system information to be forwarded, and the distance between the second device and the device where the chip is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip is located; the chip is also used to forward the first system information when the system information forwarded by the second device is not monitored.

[0146] The embodiment of the present application further provides a chip module, the chip module comprising a transceiver component and a chip, wherein:

[0147] The chip is used to monitor whether there is system information forwarded by a second device when there is first system information to be forwarded, and the distance between the second device and the device where the chip module is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip module is located; the transceiver component is used to forward the first system information when the chip does not monitor the system information forwarded by the second device.

[0148] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method recorded in the above method embodiments.

[0149] The present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any method described in the above method embodiment. The computer program product may be a software installation package.

[0150] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0151] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0152] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0153] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0154] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0155] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or all or part of the technical solution, can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, server or TRP, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0156] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable memory, which may include a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0157] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for sending system information, characterized in that: The method comprises: When there is first system information to be forwarded, the first device monitors whether there is system information forwarded by a second device, where the distance between the second device and the first device is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the first device; If the first device does not monitor the system information forwarded by the second device, the first device forwards the first system information; If the first device monitors the system information forwarded by the second device, the first device obtains a first cell identifier, where the first cell identifier is a cell identifier of a cell to which the system information forwarded by the second device belongs; If the first cell identifier is different from the second cell identifier, the first device forwards the first system information, and the second cell identifier is the cell identifier of the cell to which the first system information belongs.

2. The method according to claim 1, characterized in that The method further comprises: The first device receives first indication information sent by the network device, where the first indication information is used to instruct the first device to monitor system information forwarded by the second device.

3. The method according to claim 2, characterized in that The first indication information is also used to indicate the monitoring duration; When the first device has first system information to be forwarded, monitoring whether there is system information forwarded by a second device includes: When the first device has first system information to be forwarded, the first device monitors within the monitoring time period whether there is system information forwarded by the second device.

4. The method according to claim 2 or 3, characterized in that: The method further comprises: The first device receives second indication information sent by the network device, where the second indication information is used to instruct the first device not to monitor the system information forwarded by the second device, and the first device forwards the first system information.

5. The method according to claim 1, characterized in that The method further comprises: When the first cell identifier is the same as the second cell identifier, the first device determines whether the system information forwarded by the second device is the same as the first system information; If the system information forwarded by the second device is different from the first system information, the first device forwards part or all of the first system information.

6. The method according to claim 5, characterized in that The method further comprises: If the system information forwarded by the second device is partially or completely identical to the first system information, determining whether a first signal quality is lower than a first threshold, the first signal quality being a signal quality when the second device forwards the system information forwarded by the second device; If the first signal quality is lower than the first threshold, the first device forwards the first system information.

7. The method according to any one of claims 1 to 3, 5 or 6, characterized in that When the first device has first system information to be sent, monitoring whether there is system information forwarded by the second device includes: When there is first system information to be sent, and the first system information includes necessary system information, the first device monitors whether there is system information forwarded by the second device.

8. A device for sending system information, characterized in that: The device comprises: a processing unit, configured to, when there is first system information to be forwarded, monitor whether there is system information forwarded by a second device, the distance between the second device and the apparatus being less than or equal to a first threshold, or the second device being located within a coverage range of a network device serving the apparatus; a transceiver unit, configured to forward the first system information when the processing unit fails to monitor the system information forwarded by the second device; The processing unit is configured to acquire a first cell identifier if the system information forwarded by the second device is monitored, where the first cell identifier is a cell identifier of a cell to which the system information forwarded by the second device belongs; The transceiver unit is further configured to forward the first system information if the first cell identifier is different from a second cell identifier, and the second cell identifier is a cell identifier of a cell to which the first system information belongs.

9. The device according to claim 8, characterized in that The device is a chip, or a chip module, or a user equipment UE.

10. A network device, characterized in that: The network device includes a configuration module; In response to the number of relay devices in the serving cell being greater than a configured threshold, the configuration module configures the first device to enable a mode of first monitoring the second device and then forwarding when forwarding system information of the serving cell, wherein the relay device includes at least the first device and the second device; The distance between the second device and the first device is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the first device.

11. A chip, characterized in that: The chip includes a processor and a transceiver circuit; The processor is configured to monitor whether there is system information forwarded by a second device when there is first system information to be sent, the distance between the second device and the device where the chip is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip is located; The transceiver circuit is used to forward the first system information if the system information forwarded by the second device is not monitored; The processor is further configured to acquire a first cell identifier if the system information forwarded by the second device is monitored, where the first cell identifier is a cell identifier of a cell to which the system information forwarded by the second device belongs; The transceiver circuit is further configured to forward the first system information if the first cell identifier is different from a second cell identifier, and the second cell identifier is a cell identifier of a cell to which the first system information belongs.

12. A chip module, characterized in that: The chip module includes a transceiver component and a chip, wherein: The chip is used to monitor whether there is system information forwarded by a second device when there is first system information to be sent, the distance between the second device and the device where the chip module is located is less than or equal to a first threshold, or the second device is located within the coverage range of a network device serving the device where the chip module is located; The transceiver component is used to forward the first system information when the chip does not monitor the system information forwarded by the second device; The chip is further configured to acquire a first cell identifier if the system information forwarded by the second device is monitored, where the first cell identifier is a cell identifier of a cell to which the system information forwarded by the second device belongs; The transceiver component is further configured to forward the first system information if the first cell identifier is different from a second cell identifier, and the second cell identifier is a cell identifier of a cell to which the first system information belongs.

13. An electronic device, characterized in that: The electronic device includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method as described in any one of claims 1-7.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein when the computer program is run on an electronic device, the method according to any one of claims 1 to 7 is executed.

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