Wireless communication method, network device, and user equipment

Abstract

The present application belongs to the technical field of communications. Provided are a wireless communication method, a network device, and a user equipment (UE). The method comprises: receiving a system information block 1 (SIB1) request message sent by one or more UEs; and on the basis of the SIB1 request message, sending a SIB1 by means of broadcast, or sending the SIB1 to the UEs according to a preset number of times. According to the method, when the SIB1 request load is high, a SIB1 request mode is switched to a broadcast mode, so as to solve the problem of reduced gain or negative gain occurring in on-demand SIB1 scenarios.

Description

Wireless communication methods, network equipment and user equipment

[0001] This application claims priority to Chinese patent application filed on January 24, 2025, with application number 202510123458.4 and entitled "Method, Network Device and User Equipment for Wireless Communication", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a wireless communication method, network device, and user equipment. Background Technology

[0003] Energy consumption has become a critical component of operators' operating expenses (OPEX). According to a report by the Global System for Mobile Communications Association (GSMA), mobile network energy costs account for approximately 23% of operators' total costs. The study item (SI) in 3GPP Release 18 simulated and evaluated several candidate directions for network energy saving. 3GPP Release 19, based on the SI study, listed three more candidate directions, one of which is on-demand system information block 1 (SIB1). How to implement on-demand requests for SIBs to achieve network energy savings is a pressing issue that needs to be addressed. Summary of the Invention

[0004] This application provides a wireless communication method that optimizes the gain problem in SIB1 request scenarios by flexibly setting the transmission mode of SIB1, such as switching the request mode to broadcast mode or limiting the number of times to respond to SIB1 requests in some scenarios.

[0005] In a first aspect, a wireless communication method is provided, applied to a network device, comprising: receiving a request message sent by a user equipment (UE), the request message being used to request system information block 1 (SIB1); and sending SIB1 to the UE, wherein the method of sending SIB1 is either broadcast mode or request mode.

[0006] In one possible implementation, the request message can also be described as a SIB1 request message.

[0007] For example, the broadcast mode can be a traditional method of sending SIB1. In broadcast mode, the network device can, for example, periodically broadcast SIB1. In broadcast mode, the UE does not need to initiate an SIB1 request to the network device. The request mode, for example, can be a method where the UE needs to initiate an SIB1 request to the network device on demand, and the network device, upon receiving the SIB1 request, sends SIB1 to the UE. The request mode can also be described as an SIB1 request mode, an on-demand SIB1 request mode, etc.

[0008] According to the method provided in this implementation, when the UE requests SIB1, the network device sends SIB1 to the UE in either broadcast mode or request mode, which increases the flexibility of sending SIB1 and increases the selectable types of SIB1 sending methods. Thus, under different requirements, the network device can choose a better mode to send SIB1 to achieve better results.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: when the number of times the request message is received exceeds a first threshold, the method of sending SIB1 is switched from the request mode to the broadcast mode.

[0010] The number of times a request message is received can be equivalent to the number of request messages received.

[0011] It should be understood that when the number of times a request message is received exceeds the first threshold, it means that the SIB1 request load is high. At this time, the method of sending SIB1 is switched from request mode to broadcast mode, which can reduce the number of times the network device responds and save the energy consumption of the network device in responding to SIB1. Compared with the traditional broadcast mode, it avoids the problem of negative gain or reduced gain.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the step of switching the method of sending SIB1 from the request mode to the broadcast mode when the number of times the request message is received exceeds a first threshold specifically includes: when the number of times the request message is received exceeds a first threshold within a first time window, the method of sending SIB1 is switched from the request mode to the broadcast mode.

[0013] The length of the first time window can be customized. The value corresponding to the first threshold can also be customized.

[0014] It should be understood that by switching the mode corresponding to the SIB1 sending method based on the number of times the request message is received within the first time window, the way the network device responds to the SIB1 request can be adjusted more flexibly, optimizing the gain of the network device's response to the SIB1 request at a finer granular level and reducing energy consumption.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: sending a first response message to the UE, the first response message being used to indicate that the request message has been received.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the first response message includes: first indication information; or, resources of downlink synchronization information corresponding to the SIB1, wherein the downlink synchronization information includes the first indication information; wherein the first indication information is used to indicate resources of control information of the SIB1.

[0017] In one possible implementation, when the first response message includes first indication information, the UE can receive the control information of SIB1 on the corresponding resource according to the resource indicated by the first indication information; and receive SIB1 according to the control information of SIB1. In this case, the UE can directly obtain the resource of the control information of SIB1 based on the first response message, without relying on other information such as downlink synchronization information to obtain the resource of the control information of SIB1, thus simplifying the process of obtaining SIB1 in rebroadcast mode and improving the efficiency of obtaining SIB1.

[0018] In one possible implementation, when the first response message includes resources for downlink synchronization information corresponding to SIB1, the UE can receive downlink synchronization information on those resources; then, based on the resources for SIB1 control information indicated by the first indication information in the downlink synchronization information, the UE can receive SIB1 control information on the corresponding resources; and receive SIB1 based on the SIB1 control information. By carrying the relevant resources in the first response message, the UE can obtain the SIB1 broadcast by the network device based on the first response message, thus satisfying the UE's SIB1 requirements.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the method further satisfies at least one of the following: the first response message is a Random Access Response (RAR); the downlink synchronization information is a synchronization signal and a Physical Broadcast Channel (SSB); and the control information of SIB1 is the Physical Downlink Control Channel (PDCCH) of SIB1.

[0020] By reusing RAR, SSB, and PDCCH to enable network devices to respond to UE's SIB1 request messages, the problem of increased signaling overhead caused by introducing new information types can be avoided.

[0021] In conjunction with the first aspect, in certain implementations of the first aspect, the resources of the downlink synchronization information corresponding to SIB1 include at least one of the following: at least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR; and / or, the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

[0022] The end position of a RAR file can be either the RAR end symbol or the RAR end gap; the end position of a RAR window can be either the RAR window end symbol or the RAR window end gap.

[0023] It should be understood that by indicating one or more of the following parameters—the GSCN of the SIB1 downlink synchronization information, the minimum time-domain offset between the downlink synchronization information and the RAR end position, and the minimum time-domain offset between the downlink synchronization information and the RAR window end position—the UE can receive downlink synchronization information at the corresponding time-domain and / or frequency-domain positions based on these parameters, thereby improving the efficiency of the UE in receiving downlink synchronization information.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the resources of the control information of SIB1 include at least one of the following: the control resource set CORESER corresponding to the control information of SIB1; and the search space SS corresponding to the control information of SIB1.

[0025] It should be understood that by instructing the CORESER and / or SS of the SIB1 control information, the UE can receive the SIB1 control information at the corresponding time-frequency domain location based on these parameters, thereby improving the efficiency of the UE in receiving the SIB1 control information.

[0026] In conjunction with the first aspect, in some implementations of the first aspect, the first response message further includes second indication information, which is used to indicate a switch from the request mode to the broadcast mode.

[0027] It should be understood that by instructing the UE to switch from request mode to broadcast mode, the UE can receive and / or parse relevant information in the manner corresponding to broadcast mode, thereby successfully receiving SIB1.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, in the request mode, the method further includes: responding to the SIB1 request of the UE according to a preset number of times.

[0029] According to the method provided in this implementation, by limiting the number of times the network device responds to the UE's SIB1 request, the problem of high SIB1 response energy consumption caused by the network device responding to each SIB1 request can be avoided when the SIB1 request load is high.

[0030] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: sending SIB1 and / or the second response message to the UE based on the number of times the UE's SIB1 request has been responded to within a second time window and the preset number of times; wherein the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0031] Optionally, the network device may also send SIB1 and / or the second response message to the UE based on the number of SIB1 requests received from the UE within the second time window and the preset number of times; wherein, the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0032] Optionally, the network device may also send SIB1 and / or the second response message to the UE based on the number of times the UE receives the SIB1 request within the second time window and the preset number of times; wherein, the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0033] It should be understood that by responding to the UE's SIB1 request a limited number of times and directly sending SIB1 or SIB1 control information to the UE, the network device can improve the efficiency of the UE receiving SIB1 while ensuring network energy conservation.

[0034] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: when the number of times the SIB1 request of the UE has been responded to within the second time window has not reached the preset number, sending SIB1 and / or the second response message to the UE; when the number of times the SIB1 request of the UE has been responded to within the second time window has reached the preset number, no longer responding to the SIB1 request of the UE within the second time window.

[0035] Optionally, if the number of SIB1 requests received from the UE within the second time window does not reach the preset number, an SIB1 and / or the second response message is sent to the UE; if the number of SIB1 requests received from the UE within the second time window reaches or exceeds the preset number, the UE's SIB1 requests are no longer responded to within the second time window.

[0036] Optionally, if the number of times the UE's SIB1 request has been received within the second time window has not reached the preset number, the SIB1 and / or the second response message is sent to the UE; if the number of times the UE's SIB1 request has been received within the second time window has reached or exceeded the preset number, the UE's SIB1 request will no longer be responded to within the second time window.

[0037] It should be understood that when the number of times the network device responds to the UE's SIB1 request reaches a preset number, it will no longer respond to the UE's SIB1 requests after the second time window. In other words, the network device will respond to the earlier SIB1 request received within the second time window, rather than responding to the later SIB1 request. This response method can respond to the UE's SIB1 request in a timely manner when it is received, shortening the SIB1 response latency and saving the energy consumption of the SIB1 response.

[0038] In conjunction with the first aspect, in some implementations of the first aspect, the step of sending SIB1 and / or the second response message to the UE based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times specifically includes: determining whether to respond to the UE's SIB1 request based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times; determining to respond to the UE's SIB1 request when the number of times the UE's SIB1 request has been responded to within the second time window has not reached the preset number of times; and sending SIB1 and / or the second response message to the UE.

[0039] In conjunction with the first aspect, in some implementations of the first aspect, the second response message may also include the window length corresponding to the second time window and / or the value of the preset number of times.

[0040] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: sending configuration information of the request message to the UE, wherein the configuration information of the request message includes the window length corresponding to the second time window and / or the value of the preset number of times.

[0041] Secondly, a wireless communication method is provided, applied to a UE, comprising: sending a request message to a network device, the request message being used to request SIB1; and receiving SIB1 sent by the network device, wherein the SIB1 is sent in a broadcast mode or a request mode.

[0042] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: receiving a first response message sent by the network device, the response message being used to indicate that the request message has been received.

[0043] In conjunction with the second aspect, in some implementations of the second aspect, the first response message includes: first indication information; or, resources of downlink synchronization information corresponding to the SIB1, wherein the downlink synchronization information includes the first indication information; wherein the first indication information is used to indicate resources of control information of the SIB1.

[0044] In conjunction with the second aspect, in some implementations of the second aspect, the method further satisfies at least one of the following: the first response message is a Random Access Response (RAR); the downlink synchronization information is a synchronization signal and a Physical Broadcast Channel (SSB); and the control information of SIB1 is the Physical Downlink Control Channel (PDCCH) of SIB1.

[0045] In conjunction with the second aspect, in some implementations of the second aspect, the resources of the downlink synchronization information corresponding to SIB1 include at least one of the following: at least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR; and / or, the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

[0046] In conjunction with the second aspect, in some implementations of the second aspect, the resources of the control information of SIB1 include at least one of the following: the control resource set CORESER corresponding to the control information of SIB1; and the search space SS corresponding to the control information of SIB1.

[0047] In conjunction with the second aspect, in some implementations of the second aspect, the first response message further includes second indication information, which is used to indicate a switch from the SIB1 request mode to the broadcast mode.

[0048] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: acquiring resources for the control information of SIB1 based on the first indication information included in the first response message; receiving the control information of SIB1 based on the resources for the control information of SIB1; receiving SIB1 based on the control information of SIB1; or, receiving downlink synchronization information corresponding to SIB1 based on resources for downlink synchronization information corresponding to SIB1; acquiring resources for the control information of SIB1 based on the first indication information included in the downlink synchronization information; receiving the control information of SIB1 based on the resources for the control information of SIB1; receiving SIB1 based on the control information of SIB1.

[0049] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: receiving the downlink synchronization information sent by the network device on the at least one GSCN.

[0050] In conjunction with the second aspect, in some implementations of the second aspect, in the request mode, the method further includes: receiving SIB1 and / or the second response message sent by the network device; wherein the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, the control information of the SIB1 being the PDCCH of the SIB1; the SIB1 and / or the second response message is sent by the network device based on the number of times the SIB1 request of the UE has been responded to within the second time window and a preset number of times.

[0051] In conjunction with the second aspect, in some implementations of the second aspect, the second response message may also include the window length corresponding to the second time window and / or the value of the preset number of times.

[0052] In conjunction with the second aspect, in some implementations of the second aspect, the method further includes: receiving configuration information of the request message sent by the network device, wherein the configuration information of the SIB1 request message includes the window length corresponding to the second time window and / or the value of the preset number of times.

[0053] Optionally, the UE can adjust the timing of sending request messages based on the values ​​of the second time window length and the preset number of times, according to the RSRP. For example, when the RSRP is lower than the second threshold, the UE can increase the interval between sending two request messages, or postpone the time of sending the next request message.

[0054] Optionally, the UE can also adjust the transmission power of the request message based on the value of the second time window length and the preset number of times, according to the RSRP. For example, when the RSRP is lower than the third threshold, the UE can increase the transmission power of the next request message.

[0055] Thirdly, a network device is provided, comprising: a processor; a memory; the memory storing a computer program, the computer program including instructions that, when executed by the processor, cause the user equipment to perform the method as described in any implementation of the first aspect above.

[0056] Fourthly, a user equipment is provided, comprising: a processor; a memory; the memory storing a computer program, the computer program including instructions that, when executed by the processor, cause the user equipment to perform the method as described in any implementation of the second aspect above.

[0057] Fifthly, a chip system is provided, the chip system including a processing circuit, a receiving pin, and a transmitting pin; wherein the receiving pin, the transmitting pin, and the processing circuit communicate with each other through an internal connection path, and the processing circuit executes the method as described in any implementation of the first or second aspect above to control the receiving pin to receive signals and control the transmitting pin to transmit signals.

[0058] In a sixth aspect, a computer-readable storage medium is provided, the computer-readable storage medium storing computer-executable program instructions, which, when executed on a computer, cause the computer to perform the method as described in any of the implementations of the first or second aspect above.

[0059] In a seventh aspect, a computer program product is provided, the computer program product including computer program code, which, when run on a computer, causes the computer to perform the method as described in any one of the first or second aspects above. Attached Figure Description

[0060] Figure 1 shows a wireless communication system 10 provided in an embodiment of this application.

[0061] Figures 2A to 2D are schematic diagrams of some scenarios where the On-Demand Request SIB1 is applicable, as provided in the embodiments of this application.

[0062] Figure 3 is a schematic diagram of a wireless communication method provided in an embodiment of this application.

[0063] Figure 4 is a schematic diagram of another wireless communication method provided in an embodiment of this application.

[0064] Figure 5 is a schematic diagram of another wireless communication method provided in an embodiment of this application.

[0065] Figure 6 is a schematic structural diagram of a user equipment 100 provided in an embodiment of this application. Detailed Implementation

[0066] It should be noted that the terminology used in the implementation section of the embodiments of this application is only used to explain the specific embodiments of this application and is not intended to limit this application. In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the association relationship of related obstacles, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. In addition, in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more, "at least one" or "one or more" means one, two or more.

[0067] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0068] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0069] The technical solution of this application will be described in detail below with reference to specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0070] Communication system architecture

[0071] Figure 1 illustrates a wireless communication system 10 according to an embodiment of this application. The wireless communication system 10 may include a UE 100 and a network device 200. The network device may be a device that communicates with the UE. The network device may be a device in a cell that supports SIB1 requests, such as an NES cell.

[0072] Figure 1 exemplarily illustrates a network device and two UEs, but the wireless communication system 10 to which this application embodiment applies may also include multiple network devices, and each network device may include other numbers of UEs within its coverage area. This application embodiment does not limit this. In addition, the wireless communication system 10 may also include other network entities such as a network controller and a mobility management entity. This application embodiment does not limit this.

[0073] It should be understood that the technical solutions of the embodiments of this application can be applied to various communication systems, such as fifth-generation mobile communication (5G). th This application provides technical solutions that can also be applied to future communication systems, such as 6G mobile networks (5G), new radio (NR), long term evolution (LTE), LTE frequency division duplex (FDD), and LTE time division duplex (TDD). th Generation mobile networks (6G) systems, satellite communication systems, etc.

[0074] In this application embodiment, the UE can also be referred to as a terminal device, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment, etc. In this application embodiment, the UE can be a device that provides voice and / or data connectivity to a user, and can be used to connect people, objects, and machines, such as a handheld device with wireless connectivity, vehicle-mounted device, etc. The UE in this application embodiment can be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. Optionally, the UE can be used as a base station. For example, the UE can act as a scheduling entity, providing sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D) networks. For example, cellular phones and cars communicate with each other using sidelink signals, or cellular phones and smart home devices communicate without relaying communication signals through a base station.

[0075] The network device in this application embodiment can be a device for communicating with the UE. This network device can also be called an access network device or a radio access network device, such as a base station. In this application embodiment, the network device can refer to a radio access network (RAN) node (or device) that connects the UE to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master MeNB, secondary SeNB, multi-mode radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or a combination thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. Base stations can also be mobile switching centers, devices that perform base station functions in D2D, V2X, and machine-to-machine (M2M) communications, network-side devices in 5G networks, and devices that perform base station functions in future communication systems. Base stations can support networks using the same or different access technologies. This application does not limit the specific technologies or device forms used in the network equipment.

[0076] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can also be configured as a device for communicating with another base station.

[0077] The network device in this application embodiment may refer to a centralized unit (CU) or a distributed unit (DU), or the network device may include both CU and DU.

[0078] Network devices and UEs can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and UEs are located.

[0079] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (e.g., a cloud platform).

[0080] As cellular networks become increasingly widespread, energy consumption is becoming a more prominent issue for operators. For example, with the proliferation of 5G across various industries and geographical regions, processing higher-level services and applications requires extremely high data rates. Networks are becoming denser, using more antennas, larger bandwidths, and more frequency bands, leading to further increases in energy consumption for current 5G communication systems and future 6G and further evolved communication systems. Therefore, new solutions are needed to improve network energy efficiency.

[0081] Network energy consumption primarily originates from the wireless access network, particularly the active antenna unit (AUU). Data centers and fiber optic transmission account for a smaller share of energy consumption. The power consumption of the wireless access network can be divided into two parts: a dynamic component consumed during data transmission or reception, and a static component consumed continuously to maintain the necessary operation of the wireless access equipment, even when data transmission or reception is not occurring.

[0082] In traditional communication systems, network devices periodically broadcast SIB1. However, when the UE served by the network device has no access, measurement, or service transmission needs, continuously broadcasting synchronization signals, the physical broadcast channel (SSB), and system message block SIB1 leads to energy waste for the network device. Under low to medium load conditions, on-demand transmission of SIB1 significantly improves the energy consumption of network devices. On-demand transmission of SIB1 means that when a UE has an SIB1 requirement, it initiates an SIB1 request; upon receiving the SIB1 request, the network device sends the SIB1 to the UE. In other words, the transmission method of SIB1 changes from periodic broadcasting to on-demand requesting.

[0083] In network energy saving (NES) scenarios, the purpose of introducing on-demand SIB1 is to save energy, so it is necessary to prevent on-demand SIB1 from causing negative gain. The sources of negative gain of on-demand SIB1 may be as follows: (1) The gain of on-demand SIB1 is reflected in low-to-medium load scenarios. Changes in load may lead to a decrease in gain or negative gain, such as from low-to-medium load to medium-to-high load; (2) A single device frequently requests SIB1 due to reasons such as the quality of received signal, causing network devices to frequently respond to SIB1 requests.

[0084] For UEs in idle or inactive modes, the cell lacks prior information, making it difficult to directly restrict a UE's SIB1 request behavior. Therefore, how to optimize gain for negative gain scenarios becomes a worthwhile research topic.

[0085] Scenarios for On-Demand Request SIB1 (or SIB1 Request Mode)

[0086] The following description uses an NES cell as an example to illustrate the SIB1 request mechanism. In SIB1 request mode (hereinafter referred to as request mode), the UE needs to first obtain the SIB1 request configuration information and then initiate the SIB1 request based on this configuration information. The SIB1 request configuration information can be sent to the UE by the NES cell or by a neighboring cell of the NES cell. In this application, "NES cell" can refer to a cell that supports SIB1 requests. Cells supporting SIB1 requests can also be other types of cells besides NES cells; this embodiment does not limit this.

[0087] Figures 2A to 2D are schematic diagrams illustrating the scenarios applicable to the SIB1 request mode provided in the embodiments of this application. The scenarios applicable to the SIB1 request mode may include the following:

[0088] Scene 1:

[0089] The UE can obtain SIB1 request configuration information from neighboring cells of the NES cell and request SIB1 from the neighboring cells based on this configuration information. For example, when the UE moves from a neighboring cell to an NES cell and the signal strength of the neighboring cell is stronger, the UE may prioritize obtaining the SIB1 request configuration information from the neighboring cell with the better signal and request SIB1 from the neighboring cell; or, when the NES cell makes it difficult for the UE to obtain complete and accurate SIB1 information in the cell for some reason, the UE may obtain the SIB1 configuration information from a neighboring cell and request SIB1 from the neighboring cell. For example, Figure 2A shows a schematic flow of the UE requesting SIB1 corresponding to scenario one, including the following steps:

[0090] S201a, the first network device in the NES cell sends SIB1 request configuration information (OD-SIB1 request configuration) to the second network device in the neighboring cell.

[0091] The first network device can send SIB1 request configuration information to the second network device through the air interface between network devices (such as the air interface Xn between base stations).

[0092] S201b, the second network device sends an SIB1 request for configuration information to the UE.

[0093] In some embodiments, the second network device may send SIB1 request configuration information to the UE via a system information block (SIB). For example, the second network device may send SIB1 request configuration information to the UE via SIB2-SIB5, or SIB1, or a newly defined SIB. The SIB1 request configuration information may include resources used by the UE to send the SIB1 request message, such as time-domain resources and / or frequency-domain resources.

[0094] S201c, the UE sends an SIB1 request message to the second network device.

[0095] S201d, the second network device sends SIB1 to the UE.

[0096] Scene 2:

[0097] The UE can obtain the SIB1 request configuration information from a neighboring cell of the NES cell, and request SIB1 from the neighboring cell based on this configuration information. The NES cell then obtains the SIB1. For example, although the UE is within the signal coverage range of a neighboring cell, the signal of the neighboring cell at the UE's location is poor, while the NES cell has better signal coverage at that location. In this case, the UE can first obtain the SIB1 request configuration information from the neighboring cell and request SIB1, and then obtain SIB1 from the NES cell with better signal quality according to network instructions, thereby obtaining a more stable and efficient network service. For example, Figure 2B illustrates a schematic flow of the UE requesting SIB1 corresponding to scenario two, including the following steps:

[0098] S202a, the second network device sends SIB1 request configuration information to the UE.

[0099] S202b, the UE sends an SIB1 request message to the second network device.

[0100] S202c, the second network device sends the relevant information of UE request SIB1 to the first network device.

[0101] S202d, the first network device sends SIB1 to the UE.

[0102] Scene 3:

[0103] The UE can obtain SIB1 request configuration information from neighboring cells of the NES cell and request SIB1 from the NES cell based on this configuration information. For example, if the UE is located in the boundary area between the NES cell and a neighboring cell, it may receive a stronger signal from the neighboring cell. The neighboring cell sends SIB1 request configuration information to the UE, but its own resources are limited and it cannot provide the UE with complete system information or services, thus instructing the UE to request SIB1 from the NES cell. Alternatively, the UE may first be located in a neighboring cell, have established a communication connection with the network equipment of the neighboring cell, and receive SIB1 request configuration information sent by the neighboring cell. Afterwards, the UE needs to reselect to the NES cell, and the UE requests SIB1 from the NES cell based on the SIB1 request configuration information. For example, Figure 2C shows a schematic flow of the UE requesting SIB1 corresponding to scenario three, including the following steps:

[0104] S203a, the first network device in the NES cell sends an SIB1 request for configuration information to the second network device in the neighboring cell.

[0105] S203b, the second network device sends an SIB1 request for configuration information to the UE.

[0106] S203c, the UE sends an SIB1 request message to the first network device.

[0107] S203d, the first network device sends SIB1 to the UE.

[0108] Scene 4:

[0109] The UE can obtain SIB1 request configuration information from the NES cell and request SIB1 from the NES cell based on this configuration information. For example, if the UE is located within an NES cell or in a region bordering a neighboring cell and the NES cell, but receives a strong signal from the NES cell, the UE can request SIB1 from the NES cell. For example, Figure 2D illustrates a schematic flow of the UE requesting SIB1 in scenario four, including the following steps:

[0110] S204a, the first network device in the NES cell sends an SIB1 request for configuration information to the UE.

[0111] S204b, the UE sends an SIB1 request message to the first network device.

[0112] S204c, the first network device sends SIB1 to the UE.

[0113] In the above scenario, the NES cell or its neighboring cells can provide the UE with SIB1 request configuration information. The UE then requests SIB1 from the NES cell or neighboring cells based on this configuration information. After receiving the SIB1 sent by the network device, the UE can complete the subsequent procedures required based on the SIB1, such as the UE accessing the random access function of the NES cell.

[0114] It should be noted that the coverage range of the first network device in the NES cell and the coverage range of the second network device in the neighboring cell shown in Figures 2A to 2D are only examples. The coverage range of the first network device is not necessarily completely within the coverage range of the second network device. They only need to conform to the coverage relationship of the neighboring cells.

[0115] It should also be noted that the embodiments of this application only use the scenarios shown in Figures 2A to 2D as examples to illustrate the possible application of the SIB1 request mode, but these scenarios are not intended to limit the implementation of the SIB1 request mode.

[0116] The wireless communication method provided in this application aims to save network energy consumption and avoid problems such as reduced gain or negative gain by using a specific SIB1 transmission method, such as switching the SIB1 request mode to broadcast mode or limiting the number of times SIB1 requests are responded to, when the SIB1 request load is high. This technical solution can be applied to scenarios where SIB1 requests are made on demand, such as the scenarios shown in Figures 2A to 2D, and is particularly applicable to the scenario shown in Figure 2C, but this application does not limit it.

[0117] SIB1 request mode (or request mode, on-demand SIB1 request mode) is a more intelligent SIB1 request method compared to the traditional broadcast mode. This mode avoids unnecessary information broadcasting and reduces the energy consumption of the base station. However, the energy-saving gain of SIB1 request mode is mainly reflected in low-load scenarios. If the network load suddenly increases and a large number of UEs request SIB1 simultaneously, the base station may become busy. Frequent responses to SIB1 requests will lead to additional energy consumption, which may even exceed the energy consumption of the traditional broadcast mode, resulting in a negative gain.

[0118] Example 1

[0119] To address the aforementioned issues, the technical solution provided in this application primarily involves changing the SIB1 transmission method when the network load meets certain conditions. This involves switching the mode corresponding to the SIB1 transmission method from request mode to broadcast mode, i.e., transmitting SIB1 via broadcast instead of responding to each SIB1 request individually. This reduces signaling overhead and optimizes energy efficiency.

[0120] For example, Figure 3 shows a schematic diagram of a wireless communication method provided in an embodiment of this application.

[0121] S301, the UE sends a request message to the network device.

[0122] The request message can also be described as an SIB1 request message, which is used to request SIB1 from network devices.

[0123] In some embodiments, the network device may be a device in a cell that supports SIB1 requests, or a device in a neighboring cell of a cell that supports SIB1 requests. For example, it may correspond to the first network device or the second network device mentioned above. For ease of description, the term NES cell is used below to refer to a cell that supports SIB1 requests, but this application does not limit this. Neighboring cells may be cells that support SIB1 requests, or they may be conventional cells that support broadcast mode.

[0124] In some embodiments, the UE may receive SIB1 request configuration information before sending the SIB1 request message. The SIB1 request configuration information may include relevant configuration resources for the UE to send the SIB1 request message, such as the UE's preamble index, time-domain and / or frequency-domain resources of the random access channel (RACH), transmit power, and other parameters.

[0125] In some embodiments, the UE may receive SIB1 request configuration information sent by the NES cell, or it may receive SIB1 request configuration information sent by a neighboring cell of the NES cell. The method by which the UE obtains the SIB1 request configuration information can be found in the embodiments shown in Figures 2A to 2D, and will not be repeated here.

[0126] In some embodiments, the UE may send an SIB1 request to the network device based on the parameters in the SIB1 request configuration information.

[0127] S302, the network device switches the request mode to broadcast mode based on the received request message.

[0128] In some embodiments, the network device can switch the request mode to broadcast mode based on the number of times the request message is received. For example, when the number of times the network device receives the SIB1 request message exceeds a first threshold, the SIB1 request mode can be switched to broadcast mode.

[0129] Alternatively, the network device can switch the request mode to broadcast mode based on the number of request messages received. For example, when the number of request messages received by the network device exceeds a first threshold, it can switch the request mode to broadcast mode.

[0130] The first threshold can be an integer greater than or equal to 1. The specific value of the first threshold can be set as a default value or a custom setting. This application embodiment does not limit this.

[0131] In other embodiments, the network device can switch the request mode to broadcast mode based on the number of request messages received within a time window. For example, when the network device detects that the number of request messages received within the first time window exceeds a first threshold, it can switch the request mode to broadcast mode.

[0132] Alternatively, the network device can switch from request mode to broadcast mode based on the number of request messages received within a time window. For example, when the number of request messages received within the first time window exceeds a first threshold, the network device can switch to broadcast mode.

[0133] In some embodiments, the network device can receive multiple request messages from multiple UEs, or it can receive multiple request messages from a single UE. For example, the network device can receive request messages from multiple UEs within a first time window, and when the number of times the request messages are received exceeds a first threshold, it switches the request mode to broadcast mode. Alternatively, the network device can receive multiple request messages from the same UE within a first time window, and when the number of times the request messages are received exceeds a first threshold, it switches the request mode to broadcast mode.

[0134] Understandably, request mode and broadcast mode correspond to different SIB1 transmission methods. In request mode, the network device can send SIB1 to the UE in response to a received request message. In broadcast mode, the network device sends SIB1 via broadcast. Broadcast mode can also be referred to as standard mode.

[0135] It should be noted that in broadcast mode, the SSB sent by the network device includes indication information. This indication information is used to indicate the resources of valid SIB1 control information. This indication information can be, for example, the PDCCH configuration information of SIB1. The resources of valid SIB1 control information can include, for example, the location of SIB1 PDCCH candidate resources (such as time domain location and / or frequency domain location). The UE can obtain SIB1 based on these resources of SIB1 control information. Specifically, the SSB includes the primary synchronization signal (PSS), the secondary synchronization signal (SSS), and the physical broadcast channel (PBCH). The PBCH includes two parts: the master information block (MIB) and the PBCH payload. The UE can achieve time and frequency synchronization with the network device and obtain the physical cell identifier (PCI) of the cell based on the PSS, SSS, and PBCH contained in the SSB. Simultaneously, the UE obtains the configuration information of the PDCCH of SIB1 carried in the MIB, such as the control resource set (CORESET) and search space (SS) where the physical downlink control channel (PDCCH) appears. Based on the PDCCH configuration information, the UE obtains and decodes the PDCCH, and acquires parameters such as resource allocation information and modulation / coding scheme of the physical downlink shared channel (PDSCH) scheduled by the PDCCH. Based on the parameters in the PDCCH, the UE determines the resource location and scheduling information of the PDSCH where SIB1 is located, and demodulates the PDSCH containing SIB1 based on this information to obtain SIB1.

[0136] In this application embodiment, the PBCH payload is equivalent to the PBCH transport block. It may be described by different names in different contexts.

[0137] S303, the network device sends the first response message to the UE.

[0138] The first response message can also be described as an SIB1 response message, used to indicate that a request message has been received. This first response message can be, for example, a random access response (RAR).

[0139] In some embodiments, the first response message may include time-domain resources and / or frequency-domain resources of SIB1 control information, and the UE may obtain the SIB1 control information based on these time-domain resources and / or frequency-domain resources. The SIB1 control information may include the SIB1 PDCCH.

[0140] In some embodiments, the first response message may further include time-domain and / or frequency-domain resources of the downlink synchronization information corresponding to SIB1. The downlink synchronization information corresponding to SIB1 may include an SSB. This downlink synchronization information may include relevant indications of control information for SIB1. For example, the first response message may be used to indicate the time-domain and / or frequency-domain resources of the SSB corresponding to SIB1, where the SSB includes configuration information of the PDCCH of SIB1, or resources of the PDCCH of SIB1.

[0141] Optionally, the SIB1 response message may also include configuration information for the SIB1 PDCCH, or the location of PDCCH candidate resources.

[0142] In some embodiments, the UE can obtain the time-domain and / or frequency-domain resources of the SIB1 control information carried in the first response message to switch to broadcast mode. In other words, the implicit indication to switch from request mode to broadcast mode can be obtained through the time-domain and / or frequency-domain resources of the SIB1 control information carried in the first response message.

[0143] In some embodiments, the first response message may further include indication information for switching from request mode to broadcast mode.

[0144] In some embodiments, the UE can obtain control information corresponding to SIB1, such as the PDCCH of SIB1, on the corresponding time-domain resources and / or frequency-domain resources according to the first response message, and receive SIB1 sent by the network device on the corresponding time-frequency domain resources based on the control information.

[0145] In some embodiments, the resources corresponding to the control information of SIB1 may include: the control resource set CORESER corresponding to the control information of SIB1, and / or the search space SS corresponding to the control information of SIB1. For example, the control resource set CORESER corresponding to the PDCCH of SIB1, and / or the search space SS corresponding to the PDCCH of SIB1.

[0146] In some embodiments, the resources of the downlink synchronization information corresponding to SIB1 include one or more of the following: at least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information, the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the first response message (such as RAR), and the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the window of the first response message (such as RAR).

[0147] For example, taking RAR as the first response message and SSB as the downlink synchronization signal, the time-domain resources of the downlink synchronization information corresponding to SIB1 may include: the minimum time-domain offset between the SSB corresponding to SIB1 and the RAR end position; and / or, the minimum time-domain offset between the SSB corresponding to SIB and the end position of the RAR window. The minimum time-domain offset between the SSB and the RAR end position is the amount of time-domain offset relative to the RAR end position. The RAR end position can be the RAR end symbol or the RAR end gap. The minimum time-domain offset between the SSB corresponding to SIB1 and the end position of the RAR window can be the amount of time-domain offset relative to the RAR window end position. The RAR window end position can be the RAR window end symbol or the RAR window end gap. The RAR window end position can be determined based on the RAR window start position and window duration. The RAR window start position can be the position of the first PDCCH candidate resource or the first CORESET after a symbol interval relative to a random access occasion (RO).

[0148] It should be noted that the RAR window can also be described as the window of RAR, which is a 3GPP convention. It is not the receive window of RAR, but rather the receive window of the RAR's PDCCH. Specifically, RAR is transmitted in the PDSCH, which is scheduled by the PDCCH. When receiving RAR, the UE first receives the RAR's PDCCH within the RAR window, and then receives the RAR according to the scheduling information of the RAR's PDCCH. The RAR window can correspond to the ra-ResponseWindow field in the existing protocol 38.331.

[0149] It should also be noted that by indicating the time-domain and / or frequency-domain resources of the SIB1 control resource indication information to the UE, the UE can more accurately obtain the location of the SIB1 control resource indication information (such as the time-domain location and / or frequency-domain location), avoiding the problem of low UE reception efficiency of SIB1 caused by blind detection. For example, the frequency-domain resource corresponding to the SIB1 control resource indication information can be one or more Global Synchronization Channel Numbers (GSCNs) corresponding to the SIB1 control resource indication information. The GSCN can indicate the frequency-domain location of the SSB among numerous frequency-domain resources.

[0150] In some embodiments, after receiving the first response message, the UE can detect the SSB at a specific location based on the time-domain resources and / or frequency-domain resources of the SSB corresponding to SIB1 carried in the first response message.

[0151] For example, when the first response message includes the GSCN where the SSB corresponding to SIB1 is located, the UE can detect the SSB corresponding to SIB1 on that GSCN within a certain time window. The length of this time window can be set according to the broadcast period of the SSB, such as 20ms.

[0152] For example, when the SIB1 response message includes the minimum time-domain offset between the SSB corresponding to SIB1 and the end position of RAR (or the minimum time-domain offset between the SSB and the end position of RAR window), the UE can obtain the time-domain position corresponding to the SSB based on the offset value, and perform blind detection on multiple GSCNs corresponding to the current bandwidth at the time-domain position to obtain the SSB.

[0153] For example, when the first response message includes both the GSCN of the SSB corresponding to SIB1 and the minimum time-domain offset between the SSB corresponding to SIB1 and the end position of the RAR (or the minimum time-domain offset between the SSB and the end position of the RAR window), the UE can obtain the accurate frequency-domain position and time-domain start position of the SSB, and thus detect the SSB at the corresponding position, such as at the frequency-domain position and at the time-domain start position and thereafter.

[0154] Optionally, when the first response message indicates that the request mode is switched to broadcast mode, but does not carry the GSCN and time offset value corresponding to the SSB, the UE can also perform blind detection on the SSB corresponding to SIB1.

[0155] Similarly, the UE can perform blind detection of the PDCCH based on the resources of the PDCCH of SIB1 indicated by the first response message or SSB, or detect the PDCCH at the exact resource location.

[0156] It should be noted that, in this embodiment of the application, the minimum time-domain offset value between the SSB corresponding to SIB1 and the end position of RAR (or RAR window) is used as an example to indicate the time-domain position of SSB. In practical applications, the parameter indicating the time-domain position of SSB may not be limited to the aforementioned minimum time-domain offset value.

[0157] After receiving the SSB, the UE can receive SIB1 based on the SSB's indication. The specific implementation of this process can be found in the above description, and will not be repeated here.

[0158] According to the wireless communication method provided in the embodiments of this application, by switching the SIB1 request mode to broadcast mode when the SIB1 request load increases, the energy consumption of network devices can be reduced while ensuring the UE's SIB1 request needs.

[0159] Example 2

[0160] When the load of SIB1 requests is high, network devices can also save energy by limiting the number of times they respond to the same UE's SIB1 requests within a certain time period. For example, within a time window, a UE may send multiple SIB1 requests to the network device. In this case, the network device responds to a limited number of these requests (such as responding to a preset number of times, where the preset number is an integer equal to or greater than 1), thereby avoiding negative gain.

[0161] For example, a network device can respond to a UE's SIB1 request a preset number of times. For instance, when a network device receives a request message from a UE, it can determine whether to respond to the UE's current SIB1 request based on the number of times it has already responded to the UE's SIB1 requests within a second time window and the preset number of times. Specifically, if the number of times the network device has responded to the UE's SIB1 requests within the second time window has not reached the preset number, it can respond to the current SIB1 request; if the number of times the network device has responded to the UE's SIB1 requests within the second time window has reached the preset number, it will not respond to the current SIB1 request, nor will it respond to any subsequent SIB1 requests from the UE within the second time window.

[0162] As an example, assuming the preset number of times is 1, that is, within the second time window, the network device responds to the UE's request only once, Figure 4 shows a schematic flowchart of another wireless communication method provided by an embodiment of this application.

[0163] S401, the UE sends a request message to the network device.

[0164] In this process, the UE may send multiple request messages to the network device. The request message in this step may be the first request initiated by the UE to the network device within the second time window; or, in other words, the SIB1 request message in this step is the first request message sent by the UE to the network device within the second time window.

[0165] S402, the network device determines to respond to the UE's SIB1 request based on the number of times the UE's SIB1 request has been responded to within the second time window and a preset number of times.

[0166] Specifically, if the number of times the UE's SIB1 request has been responded to within the second time window has not reached a preset number, then the UE's SIB1 request will be responded to; if the number of times the UE's SIB1 request has been responded to within the second time window has reached a preset number, then the UE's SIB1 request will not be responded to.

[0167] In this embodiment, since the network device receives the UE's SIB1 request for the first time in the second time window, that is, the number of times the network device has responded to the UE's SIB1 request in the second time window is 0, which does not reach the preset number, the network device determines to respond to the UE's SIB1 request based on the preset number and the number of times it has responded to the UE's SIB1 request in the second time window.

[0168] Optionally, the network device can record the number of times it has responded to the same UE's SIB1 request within the second time window, and determine whether to respond to the UE's SIB1 request based on the relationship between this number and a preset number. For example, the network device can set a correspondence between the UE device identifier and the number of times it has responded to the UE's SIB1 request within the second time window. Each time the network device responds to the UE's SIB1 request within the second time window, the count of the number of times the UE's SIB1 request has been responded to within the second time window is incremented by 1. When the network device receives a request message sent by the UE, it can determine whether the number of responses to the UE has reached the preset number. If the number of responses has not reached the preset number, the network device can respond to the UE's current SIB1 request; if the number of responses has reached the preset number, the network device can choose not to respond to the UE's SIB1 request within the second time window, that is, it will not respond to the current or subsequent SIB1 requests of the UE within the second time window.

[0169] Alternatively, the network device can record the number of request messages received from the same UE within the second time window, and determine whether to respond to the UE's SIB1 request based on the relationship between the number of received messages and a preset number. Or, the network device can record the number of request messages received from the same UE within the second time window, and determine whether to respond to the UE's SIB1 request based on the relationship between the number of received request messages and the preset number. The specific methods for determining whether to respond to the UE's SIB1 request based on the relationship between the number of received request messages and the preset number, or the relationship between the number of received SIB1 request messages and the preset number, are similar to the methods for determining whether to respond based on the number of responses and the preset number, and will not be elaborated here.

[0170] For example, in this embodiment, when the network device receives the SIB1 request message sent by the UE for the first time within the second time window, since the response count corresponding to the UE is 0, which is less than the preset count of 1, the network device can determine to respond to the UE's current SIB1 request. After determining to respond to the UE's current SIB1 request, the response count corresponding to the UE can be updated to 1.

[0171] S403, the network device sends SIB1 and / or a second response message to the UE.

[0172] The second response message can be a RAR. The second response message can be used to indicate that the network device has received the request message sent by the UE.

[0173] In some embodiments, after receiving the second response message, the UE can perform a blind detection of SIB1.

[0174] In other embodiments, the second response message may carry resources containing control information for SIB1, such as the CORESET and / or SS of the PDCCH of SIB1. The UE can detect and receive the control information for SIB1 on the corresponding resources based on the control resources of SIB1 carried in the second response message, and then receive SIB1 based on that control information.

[0175] In some other embodiments, the UE may also obtain resources for the control information of SIB1 based on pre-acquired configuration information, such as configuration information for SIB1 requests. After the UE requests SIB1 from the network device, the UE can obtain SIB1 based on the resources for the control information of SIB1 obtained in advance.

[0176] It should be understood that a UE can send request messages to the network device multiple times within the second time window. For example, after a UE sends an SIB1 request message to the network device, if it does not receive an SIB1 response message from the network device, the UE can send the SIB1 request message to the network device again. However, if the number of times the network device responds to the UE's SIB1 requests has reached a preset number, then the network device will no longer respond to other SIB1 requests from the UE received within the second time window. For example, in this embodiment, the preset number is 1, so after the network device responds to the UE once, it will not respond to any subsequent SIB1 requests from the UE within the second time window.

[0177] For example, referring to Figure 4, when the preset number of responses is 1, when the network device receives the second request message sent by the UE in step S404 or the third request message sent by the UE in step S406, it can query the number of responses to the UE's SIB1 request within the second time window and determine whether the preset number has been reached. If the number of responses to the UE's SIB1 request within the second time window has reached the preset number, then the network device will no longer respond to the UE's second and third SIB1 request messages.

[0178] For example, when the network device receives the second request message sent by the UE in step S404, the network device can execute step S405, that is, based on the number of times the UE's SIB1 request has been responded to within the second time window and a preset number of times, the network device determines not to respond to the UE's SIB1 request. The network device does not send a second response message or SIB1 to the UE. Or, when the network device receives the third request message sent by the UE in step S406, the network device can execute step S407, that is, based on the number of times the UE's SIB1 request has been responded to within the second time window and a preset number of times, the network device determines not to respond to the UE's SIB1 request.

[0179] Optionally, the network device can also query the number of request messages received by the UE within the second time window, or the number of times the UE's request messages have been received within the second time window, and determine the relationship between the number or the number of times it has been received and a preset number. If the number of request messages received by the UE within the second time window reaches or exceeds the preset number, then the device will no longer respond to the UE's second and third request messages; or, if the number of times the UE's request messages have been received within the second time window reaches or exceeds the preset number, then the device will no longer respond to the UE's second and third request messages.

[0180] Assuming the preset number of requests is 2, the network device can respond to the UE's SIB1 request twice within the second time window. For example, the network device can respond to the first SIB1 request sent by the UE within the second time window, and the network device can respond to the second SIB1 request sent by the UE within the second time window. Afterwards, if the network device receives other SIB1 requests from the UE within the second time window, such as the third or subsequent SIB1 requests sent by the UE, it will not respond to these requests.

[0181] In some embodiments, the window length and / or preset number of times of the second time window can be indicated in the SIB1 request configuration information. Alternatively, the window length and / or preset number of times of the second time window can be set to default values ​​via the protocol. Alternatively, the window length and / or preset number of times of the second time window can be indicated via a second response message.

[0182] In some embodiments, the UE can adjust the timing of sending the SIB1 request based on the reference signal received power (RSRP) according to the window length and preset number of times of the second time window. For example, if the UE does not receive an SIB1 response from the network device after sending an SIB1 request and the RSRP is weak at this time, the UE can postpone the next SIB1 request, that is, increase the time interval between the two SIB1 requests.

[0183] In some embodiments, the UE can adjust the transmission power of the SIB1 request according to the values ​​of the second time window length and the preset number of times, based on the RSRP. For example, if the UE does not receive an SIB1 response from the network device after sending an SIB1 request, the UE can increase the transmission power of the next SIB1 request.

[0184] In some embodiments, the start and end of the second time window can be recorded by a timer, that is, the length of the second time window can correspond to the duration from the start to the end of the timer.

[0185] Optionally, after the second time window ends, the network device may respond to the UE's SIB1 requests once or a preset number of times based on the multiple SIB1 request messages received from the UE. For example, if the network device receives N SIB1 requests from the UE during the second time window, where N is an integer greater than a preset number, then after the second time window ends, the network device may respond to the UE once or a preset number of times for these N SIB1 requests.

[0186] The wireless communication method provided in the embodiments of this application reduces the energy consumption of network devices by performing a limited number of SIB1 responses to the same UE within a certain period of time when the SIB1 request load increases.

[0187] For example, Figure 5 shows a schematic flowchart of a wireless communication method provided in an embodiment of this application.

[0188] S501, the network device receives a request message sent by the UE, which is used to request SIB1.

[0189] In some embodiments, the cell where the UE is located may be a cell that supports SIB1 requests, or the UE may be located at the boundary between a cell that supports SIB1 requests and its neighboring cells. The neighboring cells of the cell that supports SIB1 requests may be cells that support SIB1 requests or cells that support traditional broadcast mode.

[0190] In some embodiments, the network device may support SIB1 requests. This network device may be a device in a cell that supports SIB1 requests, or a device in a neighboring cell of the cell that supports SIB1 requests.

[0191] In some embodiments, the UE may send a request message to the network device as needed to request SIB1. For example, when the UE cannot obtain resources for valid SIB1 control information based on the received synchronization signal and PBCH block (SSB), it may send a request message to the network device. In the embodiments of this application, the request message may also be described as an SIB1 request message.

[0192] S502, the network device sends SIB1 to the UE, and the method of sending SIB1 is either broadcast mode or request mode.

[0193] In some embodiments, the broadcast mode can be a traditional method of sending SIB1. In broadcast mode, the network device can, for example, periodically broadcast SIB1. In broadcast mode, the UE does not need to initiate an SIB1 request to the network device. The request mode, for example, can be one where the UE needs to initiate an SIB1 request to the network device on demand, and the network device, upon receiving the SIB1 request, sends the SIB1 to the UE via unicast. The request mode can also be described as an SIB1 request mode, an on-demand SIB1 request mode, etc.

[0194] It should be understood that by having the network device send SIB1 to the UE in either broadcast or request mode when the UE requests SIB1, the flexibility of sending SIB1 is increased, and the number of optional types of SIB1 sending methods is increased. Thus, under different requirements, the network device can choose a better mode to send SIB1 to achieve better results.

[0195] In some embodiments, the network device can also switch the request mode to broadcast mode based on the received request messages. For example, the network device can determine whether to switch the request mode to broadcast mode based on the number of times request messages are received (or the number of received request messages). For instance, the network device can switch the request mode to broadcast mode when the number of times request messages are received exceeds a first threshold; or, the network device can switch the request mode to broadcast mode when the number of times request messages are received within a first time window exceeds a first threshold.

[0196] The number of request messages received can be equivalent to the number of request messages received. The window length of the first time window can be customized. The value corresponding to the first threshold can also be customized.

[0197] It should be understood that when the number of received request messages exceeds the first threshold, it indicates a high SIB1 request load. Switching the SIB1 sending method from request mode to broadcast mode at this point reduces the number of network device responses, saving energy consumed by the network device in responding to SIB1 requests. Compared to the traditional broadcast mode, this avoids negative gain or gain reduction issues. By switching the SIB1 sending mode according to the number of received request messages within the first time window, the way the network device responds to SIB1 requests can be adjusted more flexibly, optimizing the gain of the network device's SIB1 request response at a finer granular level and reducing energy consumption.

[0198] In some embodiments, after receiving a request message, the network device may also send a first response message to the UE, which indicates that the network device has received the request message. For example, the first response message may include first indication information, which indicates resources for the control information of SIB1; or, the first response message may also include resources for downlink synchronization information corresponding to SIB1, where the downlink synchronization information includes the first indication information, which indicates resources for the control information of SIB1.

[0199] In one possible implementation, when the first response message includes first indication information, the UE can receive the control information of SIB1 on the corresponding resource according to the resource indicated by the first indication information; and receive SIB1 according to the control information of SIB1. In this case, the UE can directly obtain the resource of the control information of SIB1 based on the first response message, without relying on other information such as downlink synchronization information to obtain the resource of the control information of SIB1, thus simplifying the process of obtaining SIB1 in rebroadcast mode and improving the efficiency of obtaining SIB1.

[0200] In one possible implementation, when the first response message includes resources for downlink synchronization information corresponding to SIB1, the UE can receive downlink synchronization information on those resources; then, based on the resources for SIB1 control information indicated by the first indication information in the downlink synchronization information, the UE can receive SIB1 control information on the corresponding resources; and receive SIB1 based on the SIB1 control information. By carrying the relevant resources in the first response message, the UE can obtain the SIB1 broadcast by the network device based on the first response message, thus satisfying the UE's SIB1 requirements.

[0201] As an example, the first response message could be, for example, a Random Access Response (RAR); the control information for SIB1 could be, for example, the PDCCH for SIB1; and the downlink synchronization information could be, for example, an SSB.

[0202] By reusing RAR, SSB, and PDCCH to enable network devices to respond to UE's SIB1 request messages, the problem of increased signaling overhead caused by introducing new information types can be avoided.

[0203] In some embodiments, the resources of the downlink synchronization information corresponding to SIB1 include at least one of the following: at least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR; and / or, the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

[0204] It should be understood that by indicating one or more of the following parameters—the GSCN of the SIB1 downlink synchronization information, the minimum time-domain offset between the downlink synchronization information and the RAR end position, and the minimum time-domain offset between the downlink synchronization information and the RAR window end position—the UE can receive downlink synchronization information at the corresponding time-domain and / or frequency-domain positions based on these parameters, thereby improving the efficiency of the UE in receiving downlink synchronization information.

[0205] In some embodiments, the resources of the control information of SIB1 include at least one of the following: the control resource set CORESER corresponding to the control information of SIB1; and the search space SS corresponding to the control information of SIB1.

[0206] It should be understood that by instructing the CORESER and / or SS of the SIB1 control information, the UE can receive the SIB1 control information at the corresponding time-frequency domain location based on these parameters, thereby improving the efficiency of the UE in receiving the SIB1 control information.

[0207] In some embodiments, the first response message further includes second indication information, which indicates a switch from SIB1 request mode to broadcast mode.

[0208] It should be understood that by instructing the UE to switch from request mode to broadcast mode, the UE can receive and / or parse relevant information in the manner corresponding to broadcast mode, thereby successfully receiving SIB1.

[0209] In some embodiments, in the request mode, the method further includes: responding to the SIB1 request of the UE according to a preset number of times.

[0210] According to the method provided in this implementation, by limiting the number of times the network device responds to the UE's SIB1 request, the problem of high SIB1 response energy consumption caused by the network device responding to each SIB1 request can be avoided when the SIB1 request load is high.

[0211] In some embodiments, the method further includes: sending SIB1 and / or the second response message to the UE based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times; wherein the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0212] Optionally, the network device may also send SIB1 and / or the second response message to the UE based on the number of SIB1 requests received from the UE within the second time window and the preset number of times; wherein, the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0213] Optionally, the network device may also send SIB1 and / or the second response message to the UE based on the number of times the UE receives the SIB1 request within the second time window and the preset number of times; wherein, the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

[0214] It should be understood that by responding to the UE's SIB1 request a limited number of times and directly sending SIB1 or SIB1 control information to the UE, the network device can improve the efficiency of the UE receiving SIB1 while ensuring network energy conservation.

[0215] In some embodiments, the method further includes: sending SIB1 and / or the second response message to the UE when the number of times the SIB1 request of the UE has been responded to within the second time window has not reached the preset number; and when the number of times the SIB1 request of the UE has been responded to within the second time window has reached the preset number, no longer responding to the SIB1 request of the UE within the second time window.

[0216] Optionally, if the number of SIB1 requests received from the UE within the second time window does not reach the preset number, an SIB1 and / or the second response message is sent to the UE; if the number of SIB1 requests received from the UE within the second time window reaches or exceeds the preset number, the UE's SIB1 requests are no longer responded to within the second time window.

[0217] Optionally, if the number of times the UE's SIB1 request has been received within the second time window has not reached the preset number, the SIB1 and / or the second response message is sent to the UE; if the number of times the UE's SIB1 request has been received within the second time window has reached or exceeded the preset number, the UE's SIB1 request will no longer be responded to within the second time window.

[0218] It should be understood that when the number of times the network device responds to the UE's SIB1 request reaches a preset number, it will no longer respond to the UE's SIB1 requests after the second time window. In other words, the network device will respond to the earlier SIB1 request received within the second time window, rather than responding to the later SIB1 request. This response method can respond to the UE's SIB1 request in a timely manner when it is received, shortening the SIB1 response latency and saving the energy consumption of the SIB1 response.

[0219] In some embodiments, sending SIB1 and / or the second response message to the UE based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times specifically includes: determining whether to respond to the UE's SIB1 request based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times; determining to respond to the UE's SIB1 request when the number of times the UE's SIB1 request has been responded to within the second time window has not reached the preset number of times; and sending SIB1 and / or the second response message to the UE.

[0220] In some embodiments, the second response message may further include the window length corresponding to the second time window and / or the value of the preset number of times.

[0221] In some embodiments, the method further includes: sending configuration information of the request message to the UE, wherein the configuration information of the request message includes the window length corresponding to the second time window and / or the value of the preset number of times.

[0222] The wireless communication method provided in this application aims to save network energy consumption and avoid problems such as reduced gain or negative gain by using a specific SIB1 transmission method, such as switching the SIB1 request mode to broadcast mode or limiting the number of times SIB1 requests are responded to, when the SIB1 request load is high.

[0223] This application also provides a wireless communication method applied to a UE, comprising: sending a request message to a network device, the request message being used to request SIB1; and receiving SIB1 sent by the network device, wherein the SIB1 is sent in a broadcast mode or a request mode.

[0224] This application also provides a wireless communication method applied to a UE, the method further comprising: receiving a first response message sent by the network device, the response message being used to indicate that the request message has been received.

[0225] In some embodiments, the first response message includes: first indication information; or, resources of downlink synchronization information corresponding to SIB1, wherein the downlink synchronization information includes the first indication information; wherein the first indication information is used to indicate resources of control information of SIB1.

[0226] In some embodiments, the method further satisfies at least one of the following: the first response message is a Random Access Response (RAR); the downlink synchronization information is a synchronization signal and a Physical Broadcast Channel (SSB); and the control information of SIB1 is the Physical Downlink Control Channel (PDCCH) of SIB1.

[0227] In some embodiments, the resources of the downlink synchronization information corresponding to SIB1 include at least one of the following: at least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR; and / or, the minimum time domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

[0228] In some embodiments, the resources of the control information of SIB1 include at least one of the following: the control resource set CORESER corresponding to the control information of SIB1; and the search space SS corresponding to the control information of SIB1.

[0229] In some embodiments, the first response message further includes second indication information, which indicates a switch from SIB1 request mode to broadcast mode.

[0230] In some embodiments, the method further includes: acquiring resources for the control information of SIB1 based on the first indication information included in the first response message; receiving the control information of SIB1 based on the resources for the control information of SIB1; receiving SIB1 based on the control information of SIB1; or, receiving downlink synchronization information corresponding to SIB1 based on resources for downlink synchronization information corresponding to SIB1; acquiring resources for the control information of SIB1 based on the first indication information included in the downlink synchronization information; receiving the control information of SIB1 based on the resources for the control information of SIB1; and receiving SIB1 based on the control information of SIB1.

[0231] In some embodiments, the method further includes: receiving the downlink synchronization information sent by the network device on the at least one GSCN.

[0232] In some embodiments, in the request mode, the method further includes: receiving SIB1 and / or the second response message sent by the network device; wherein the second response message is used to indicate the resources of SIB1, or the second response message is used to indicate the resources of the control information of SIB1, and the control information of SIB1 is the PDCCH of SIB1; the SIB1 and / or the second response message is sent by the network device according to the number of times the SIB1 request of the UE has been responded to within the second time window and a preset number of times.

[0233] In some embodiments, the second response message may further include the window length corresponding to the second time window and / or the value of the preset number of times.

[0234] In some embodiments, the method further includes: receiving configuration information of the request message sent by the network device, wherein the configuration information of the SIB1 request message includes the window length corresponding to the second time window and / or the value of the preset number of times.

[0235] Optionally, the UE can adjust the timing of sending request messages based on the values ​​of the second time window length and the preset number of times, according to the RSRP. For example, when the RSRP is lower than the second threshold, the UE can increase the interval between sending two request messages, or postpone the time of sending the next request message.

[0236] Optionally, the UE can also adjust the transmission power of the request message based on the value of the second time window length and the preset number of times, according to the RSRP. For example, when the RSRP is lower than the third threshold, the UE can increase the transmission power of the next request message.

[0237] The wireless communication method provided in this application saves network energy consumption and avoids problems such as reduced gain or negative gain by using a specific SIB1 transmission method when the SIB1 request load is high, such as switching the SIB1 request mode to broadcast mode or limiting the number of times the SIB1 request is responded to.

[0238] As exemplarily shown in FIG6, this is a schematic structural diagram of a user equipment 100 provided in an embodiment of this application. This user equipment may correspond to the client and / or server in this application.

[0239] It should be noted that the structure of the user equipment 100 shown in the embodiment of Figure 6 is only an example. In actual applications, the user equipment 100 may have more or fewer components, and this application embodiment does not limit this.

[0240] User equipment may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, a headphone jack 170D, a sensor module 180, buttons 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and a subscriber identification module (SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, a barometric pressure sensor 180C, a magnetic sensor 180D, an accelerometer sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, etc.

[0241] It is understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the user equipment. In other embodiments of this application, the user equipment may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0242] Processor 110 may include one or more processing units, such as: application processor (AP), modem processor, graphics processing unit (GPU), image signal processor (ISP), controller, memory, video codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0243] The controller can serve as the nerve center and command center of the user equipment. Based on the instruction opcode and timing signals, the controller generates operation control signals to control the fetching and execution of instructions.

[0244] The processor 110 may also include a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. This memory can store instructions or data that the processor 110 has just used or that are used repeatedly. If the processor 110 needs to use the instruction or data again, it can retrieve it directly from the memory. This avoids repeated accesses, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0245] In some embodiments, the processor 110 may include one or more interfaces. Interfaces may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0246] It is understood that the interface connection relationships between the modules illustrated in the embodiments of the present invention are merely illustrative and do not constitute a structural limitation on the user equipment. In other embodiments of this application, the user equipment may also employ different interface connection methods or combinations of multiple interface connection methods as described in the above embodiments.

[0247] The mobile communication module 150 can provide solutions for wireless communication applications including 2G / 3G / 4G / 5G on user equipment. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves via antenna 1, and perform filtering, amplification, and other processing on the received electromagnetic waves before transmitting them to a modem processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1. In some embodiments, at least some functional modules of the mobile communication module 150 may be housed in the processor 110. In some embodiments, at least some functional modules of the mobile communication module 150 and at least some modules of the processor 110 may be housed in the same device.

[0248] Based on the same technical concept, embodiments of this application also provide a user equipment, including a processor; a memory; the memory storing a computer program, the computer program including instructions, which, when executed by the processor, cause the user equipment to perform one or more steps of any of the above methods.

[0249] Based on the same technical concept, this application embodiment also provides a chip system, the chip system including: a processing circuit, a receiving pin, and a transmitting pin; wherein, the receiving pin, the transmitting pin, and the processing circuit communicate with each other through an internal connection path, and the processing circuit executes one or more steps of any of the above methods to control the receiving pin to receive signals and control the transmitting pin to transmit signals.

[0250] Based on the same technical concept, embodiments of this application also provide a computer-readable storage medium storing computer-executable program instructions, which, when executed on a computer, cause the computer or processor to perform one or more steps of any of the above methods.

[0251] Based on the same technical concept, embodiments of this application also provide a computer program product containing instructions, the computer program product including computer program code, which, when run on a computer, causes the computer or processor to perform one or more steps of any of the above methods.

[0252] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0253] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

[0254] The above description is merely a specific implementation of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A method for wireless communication, characterized in that, Applied to network devices, including: Receive a request message sent by a user equipment (UE), the request message being used to request system information block 1SIB1; Send SIB1 to the UE, wherein the method of sending SIB1 is either broadcast mode or request mode.

2. The method according to claim 1, characterized in that, The method further includes: When the number of times the request message is received exceeds a first threshold, the method of sending SIB1 is switched from the request mode to the broadcast mode.

3. The method according to claim 2, characterized in that, When the number of times the request message is received exceeds a first threshold, the method of sending SIB1 is switched from the request mode to the broadcast mode, specifically including: When the number of times the request message is received within the first time window exceeds the first threshold, the method of sending SIB1 is switched from the request mode to the broadcast mode.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: A first response message is sent to the UE, the first response message being used to indicate that the request message has been received.

5. The method according to claim 4, characterized in that, The first response message includes: First instruction message; or, The resources corresponding to the downlink synchronization information of SIB1, wherein the downlink synchronization information includes first indication information; wherein... The first indication information is used to indicate the resources of the control information of SIB1.

6. The method according to claim 5, characterized in that, The method also satisfies at least one of the following: The first response message is a Random Access Response (RAR). The downlink synchronization information consists of a synchronization signal and a physical broadcast channel (SSB). The control information of SIB1 is the Physical Downlink Control Channel (PDCCH) of SIB1.

7. The method according to claim 5 or 6, characterized in that, The resources for the downlink synchronization information corresponding to SIB1 include at least one of the following: At least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; The minimum time-domain offset between the downlink synchronization information corresponding to SIB1 and the RAR end position; The minimum time-domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

8. The method according to any one of claims 5-7, characterized in that, The resources of the control information of SIB1 include at least one of the following: The control resource set CORESER corresponding to the control information of SIB1; The search space SS corresponding to the control information of SIB1.

9. The method according to any one of claims 4-8, characterized in that, The first response message also includes second indication information, which indicates a switch from the request mode to the broadcast mode.

10. The method according to claim 1, characterized in that, In the request mode, the method further includes: Respond to the UE's SIB1 request a preset number of times.

11. The method according to claim 10, characterized in that, The method further includes: Based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times, an SIB1 and / or a second response message is sent to the UE; wherein, the second response message is used to indicate the resources of the SIB1, or the second response message is used to indicate the resources of the control information of the SIB1, and the control information of the SIB1 is the PDCCH of the SIB1.

12. The method according to claim 10 or 11, characterized in that, The method further includes: If the number of times the SIB1 request of the UE has been responded to within the second time window has not reached the preset number, then send an SIB1 and / or a second response message to the UE; or, When the number of times the SIB1 request of the UE has been responded to within the second time window reaches the preset number, the SIB1 request of the UE will no longer be responded to within the second time window.

13. The method according to claim 11 or 12, characterized in that, The step of sending SIB1 and / or the second response message to the UE based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times specifically includes: Based on the number of times the UE's SIB1 request has been responded to within the second time window and the preset number of times, it is determined whether to respond to the UE's SIB1 request. If the number of times the SIB1 request of the UE has been responded to within the second time window has not reached the preset number, it is determined to respond to the SIB1 request of the UE. Send SIB1 and / or the second response message to the UE.

14. The method according to any one of claims 11-13, characterized in that, The second response message also includes the window length corresponding to the second time window and / or the value of the preset number of times.

15. The method according to any one of claims 11-13, characterized in that, The method further includes: The configuration information for sending the request message to the UE includes the window length corresponding to the second time window and / or the value of the preset number of times.

16. A method for wireless communication, characterized in that, Applied to UE, including: Send a request message to the network device, the request message being used to request SIB1; Receive SIB1 sent by the network device, wherein the SIB1 is sent in broadcast mode or request mode.

17. The method according to claim 16, characterized in that, The method further includes: The network device receives a first response message, which indicates that the request message has been received.

18. The method according to claim 17, characterized in that, The first response message includes: First instruction message; or, The resources corresponding to the downlink synchronization information of SIB1, wherein the downlink synchronization information includes first indication information; wherein... The first indication information is used to indicate the resources of the control information of SIB1.

19. The method according to claim 18, characterized in that, The method also satisfies at least one of the following: The first response message is a Random Access Response (RAR). The downlink synchronization information consists of a synchronization signal and a physical broadcast channel (SSB). The control information of SIB1 is the Physical Downlink Control Channel (PDCCH) of SIB1.

20. The method according to claim 18 or 19, characterized in that, The resources for the downlink synchronization information corresponding to SIB1 include at least one of the following: At least one Global Synchronization Channel Number (GSCN) corresponding to the frequency domain resources of the downlink synchronization information; The minimum time-domain offset between the downlink synchronization information corresponding to SIB1 and the RAR end position; And / or, The minimum time-domain offset between the downlink synchronization information corresponding to SIB1 and the end position of the RAR window.

21. The method according to any one of claims 18-20, characterized in that, The resources of the control information of SIB1 include at least one of the following: The control resource set CORESER corresponding to the control information of SIB1; The search space SS corresponding to the control information of SIB1.

22. The method according to any one of claims 17-21, characterized in that, The first response message also includes second indication information, which indicates a switch from the request mode to the broadcast mode.

23. The method according to any one of claims 17-22, characterized in that, The method further includes: Based on the first indication information included in the first response message, obtain the resources for the control information of SIB1; According to the resources of the control information of SIB1, receive the control information of SIB1; Receive SIB1 according to the control information of SIB1; or, Based on the resources of the downlink synchronization information corresponding to SIB1, receive the downlink synchronization information corresponding to SIB1; Based on the first indication information included in the downlink synchronization information, the resources for obtaining the control information of SIB1 are obtained; According to the resources of the control information of SIB1, receive the control information of SIB1; Receive SIB1 according to the control information of SIB1.

24. The method according to any one of claims 20-23, characterized in that, The method further includes: Receive downlink synchronization information sent by the network device on at least one GSCN.

25. The method according to claim 16, characterized in that, In the request mode, the method further includes: The network device receives SIB1 and / or a second response message; wherein the second response message is used to indicate the resources of SIB1, or the second response message is used to indicate the resources of the control information of SIB1, and the control information of SIB1 is the PDCCH of SIB1; the SIB1 and / or the second response message is sent by the network device according to the number of times the network device has responded to the UE's SIB1 request within a second time window and a preset number of times.

26. The method according to claim 25, characterized in that, The second response message also includes the window length corresponding to the second time window and / or the value of the preset number of times.

27. The method according to claim 25, characterized in that, The method further includes: The configuration information for receiving the request message sent by the network device includes the window length corresponding to the second time window and / or the value of the preset number of times.

28. A network device, characterized in that, include: processor; Memory; The memory stores a computer program that includes instructions that, when executed by the processor, cause the user equipment to perform the method as described in any one of claims 1 to 15.

29. A user equipment, characterized in that, include: processor; Memory; The memory stores a computer program that includes instructions that, when executed by the processor, cause the user equipment to perform the method as described in any one of claims 16 to 27.

30. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable program instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 15 or 16 to 27.

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