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. The method is applied to a user equipment (UE), and comprises: receiving first configuration information sent by a network device, wherein the first configuration information comprises first indication information, and the first indication information is used for indicating that a first cell in which a UE is located is a cell that supports a system information block 1 (SIB1) request; and sending an SIB1 request message to the first cell, wherein the SIB1 request message is used for requesting an SIB1. In the method, information required by an SIB1 request is configured to ensure that a UE acquires an SIB1 by means of the SIB1 request, thereby reducing network energy consumption.

Description

Wireless communication methods, network equipment and user equipment

[0001] This application claims priority to Chinese Patent Application No. 202510121779.0, filed on January 24, 2025, 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] In traditional broadcast mode, network devices typically send system information blocks (SIBs) periodically. However, in scenarios where user equipment (UE) has no demand or no UE is camped in the cell, periodic broadcasting of SIBs by network devices results in significant energy waste. Therefore, how to execute on-demand SIB requests to achieve network energy saving has become an urgent problem to be solved. Summary of the Invention

[0004] This application provides a wireless communication method that, by configuring the information required for SIB1 requests, ensures that the UE can obtain SIB1 through the SIB1 request method, thereby saving network power consumption.

[0005] In a first aspect, a wireless communication method is provided, applied to a user equipment (UE), comprising: receiving first configuration information sent by a network device, the first configuration information including first indication information, the first indication information being used to indicate that a first cell where the UE is located is a cell that supports System Information Block 1 (SIB1) requests; and sending an SIB1 request message to the first cell, the SIB1 request message being used to request SIB1.

[0006] In one possible implementation, the SIB1 request could be initiated by the UE to the network device as needed, and the network device, upon receiving the SIB1 request, would send the SIB1 to the UE. The corresponding request mode could also be described as an SIB1 request mode, an on-demand SIB1 request mode, etc.

[0007] According to the method provided in this implementation, by configuring the information required for the SIB1 request, the UE can obtain SIB1 through the SIB1 request method, thereby saving network energy consumption.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the network device is a device in the first cell.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the first configuration information is carried in the synchronization signal and the main information block (MIB) and / or physical broadcast channel (PBCH) load of the physical downlink control channel (SSB); or, the first configuration information is carried in the MIB and / or PBCH load of the SSB, and also in the first physical downlink control channel (PDCCH); or, the first configuration information is carried in the MIB and / or PBCH load of the SBB, and also in the first physical downlink shared channel (PDSCH), wherein the first PDSCH is a PDSCH scheduled by the first PDCCH.

[0010] In this application, the PBCH payload can be equated with the PBCH transport block, and may be described by different names in different situations.

[0011] According to the method provided in this implementation, by setting multiple ways to indicate the configuration of the SIB1 request message, the SIB1 request requirements of the UE can be flexibly met, ensuring that SIB1 can be obtained through the SIB1 request method, thereby saving network energy consumption.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the MIB of the SSB carries the first indication information through reserved bits or newly added bits; and / or, the PBCH payload of the SSB carries the first indication information through reserved bits or newly added bits.

[0013] In conjunction with the first aspect, in certain implementations of the first aspect, the SIB1 request message includes any one of the following: a physical random access channel (PRACH) signal; a random preamble; the root sequence of the random preamble; and a first message Msg1 during the random access process.

[0014] In conjunction with the first aspect, in certain implementations of the first aspect, the first configuration information includes at least one of the following: a first resource corresponding to the SIB1 request message, the first resource including time-domain resources and / or frequency-domain resources corresponding to the SIB1 request message; a signal format corresponding to the SIB1 request message; a preamble or root sequence index corresponding to the SIB1 request message, or a cyclic shift corresponding to the preamble generated by the root sequence index; the frequency-domain multiplexing number of the random access timing (RO) corresponding to the SIB1 request message; a second resource corresponding to the control information of SIB1, the second resource including time-domain resources and / or frequency-domain resources corresponding to the control information of SIB1; a third resource corresponding to the SIB1 response message of the SIB1 request message, the third resource including time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message; a window length corresponding to the SIB1 response message of the SIB1 request message; a power ramp-up step size for retransmitting the SIB1 request message; the transmission period or transmission pattern information of the first PDCCH; and the mapping relationship between the SSB and the RO.

[0015] The SIB1 response message can be a RAR, and the third resource of the SIB1 response message includes time-domain resources and / or frequency-domain resources, which can be time-domain resources and / or frequency-domain resources of the PDCCH of the RAR.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes: receiving an SIB1 request message sent by the UE in the first resource.

[0017] In conjunction with the first aspect, in some implementations of the first aspect, the SIB1 request message is a PRACH signal, and the second resource includes at least one of the following: the system frame in which the RO corresponding to the SIB1 request message is located; the subframe number in which the RO is located within a system frame containing the RO; the number of time slots in which the RO is located within a subframe containing the RO; the start symbol of the RO in a time slot containing the RO; the number of ROs in a time slot containing the RO; and a frequency domain start position, which is determined based on any one of the active bandwidth portion (BWP), the initial BWP, or the uplink bandwidth portion (UL BWP) and an offset value.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the signal format corresponding to the SIB1 request message is a RACH-supported format.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the control information of SIB1 is the second physical downlink control channel (PDCCH) of SIB1, and the second resource corresponding to the control information of SIB1 includes the control resource set (CORESET) and / or the search space (SS) corresponding to the second PDCCH of SIB1.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the SIB1 response message is a Random Access Response (RAR), and the third resource corresponding to the SIB1 response message includes the CORESET and / or SS corresponding to the third PDCCH of the RAR.

[0021] In conjunction with the first aspect, in some implementations of the first aspect, the third PDCCH reuses the CORESET and / or SS corresponding to the second PDCCH.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, when the first configuration information is carried in the MIB and / or PBCH payload of the SSB, the first configuration information includes at least one of the following: the signal format corresponding to the SIB1 request message; the first resource.

[0023] In conjunction with the first aspect, in some implementations of the first aspect, the MIB and / or PBCH of the SSB include second indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the MIB and / or PBCH of the SSB include third indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

[0025] In conjunction with the first aspect, in certain implementations of the first aspect, when the first configuration information is carried in the MIB and / or PBCH load of the SSB and in the first PDCCH, or when the first configuration information is carried in the MIB and / or PBCH load of the SBB and in the first PDSCH; the MIB and / or PBCH load includes fourth indication information, the fourth indication information being used for the CORESET and / or SS corresponding to the first PDCCH; or, the fourth indication information being used to indicate that the first PDCCH multiplexes the CORESET and / or SS corresponding to the control information of SIB1.

[0026] In conjunction with the first aspect, in some implementations of the first aspect, the MIB and / or PBCH payload further includes fifth indication information, which is used to indicate the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

[0027] In conjunction with the first aspect, in some implementations of the first aspect, the first PDCCH or the first PDSCH includes sixth indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, the first PDCCH or the first PDSCH includes seventh indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

[0029] In conjunction with the first aspect, in some implementations of the first aspect, the first PDCCH or the first PDSCH includes eighth indication information, which is used to indicate one or more of the following: the RO frequency domain multiplexing number corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between the SSB and the RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message.

[0030] In one possible implementation, a preamble index for SIB1 requests can be configured, for example, by configuring a root index or by making SIB1 requests directly through the root index (prach-RootSequenceIndex).

[0031] In conjunction with the first aspect, in some implementations of the first aspect, the first PDCCH or the first PDSCH further includes ninth indication information, which is used to indicate the subcarrier spacing corresponding to the PRACH; or, the subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB; or, the subcarrier spacing corresponding to the PRACH is a default configuration value.

[0032] In a second aspect, a wireless communication method is provided, applied to a network device, comprising: sending first configuration information to a UE, the first configuration information including first indication information, the first indication information being used to indicate that a first cell where the UE is located is a cell that supports SIB1 requests.

[0033] In conjunction with the second aspect, in some implementations of the second aspect, the network device is a device in the first cell; the method further includes: receiving an SIB1 request message sent by the UE, the SIB1 request message being used to request SIB1.

[0034] In conjunction with the second aspect, in some implementations of the second aspect, the first configuration information is carried in the MIB and / or PBCH load of the SSB; or, the first configuration information is carried in the MIB and / or PBCH load of the SSB and also carried in the first PDCCH; or, the first configuration information is carried in the MIB and / or PBCH load of the SBB and also carried in the first PDSCH, wherein the first PDSCH is the PDSCH scheduled under the first PDCCH.

[0035] In conjunction with the second aspect, in some implementations of the second aspect, the MIB of the SSB carries the first indication information through reserved bits or newly added bits; and / or, the PBCH payload of the SSB carries the first indication information through reserved bits or newly added bits.

[0036] In conjunction with the second aspect, in some implementations of the second aspect, the SIB1 request message is UL-WUS, including any one of the following: a PRACH signal; a random preamble; the root sequence of the random preamble; or the first message Msg1 in the random access process.

[0037] In conjunction with the second aspect, in certain implementations of the second aspect, the first configuration information includes at least one of the following: a first resource corresponding to the SIB1 request message, the first resource including time-domain resources and / or frequency-domain resources corresponding to the SIB1 request message; a signal format corresponding to the SIB1 request message; a preamble or root sequence index corresponding to the SIB1 request message, or a cyclic shift corresponding to the preamble generated by the root sequence index; the RO frequency-domain multiplexing number corresponding to the SIB1 request message; a second resource corresponding to the SIB1 control information, the second resource including time-domain resources and / or frequency-domain resources corresponding to the SIB1 control information; a third resource corresponding to the SIB1 response message of the SIB1 request message, the third resource including time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message; a window length corresponding to the SIB1 response message of the SIB1 request message; a power ramp-up step size for retransmitting the SIB1 request message; the transmission period or transmission pattern information of the first PDCCH; and the mapping relationship between the SSB and the RO.

[0038] In conjunction with the second aspect, in some implementations of the second aspect, the first configuration information is further used to indicate a first resource, and the method further includes: receiving an SIB1 request message sent by the UE in the first resource.

[0039] In conjunction with the second aspect, in some implementations of the second aspect, the SIB1 request message is a PRACH signal, and the second resource includes at least one of the following: the system frame where the RO corresponding to the SIB1 request message is located; the subframe number of the RO within a system frame containing the RO; the number of time slots where the RO is located within a subframe containing the RO; the start symbol of the RO within a time slot containing the RO; the number of ROs within a time slot containing the RO; and a frequency domain start position, which is determined based on any one of BWP, initial BWP, or UL BWP and an offset value.

[0040] In conjunction with the second aspect, in some implementations of the second aspect, the signal format corresponding to the SIB1 request message is a RACH-supported format.

[0041] In conjunction with the second aspect, in some implementations of the second aspect, the control information of SIB1 is the second PDCCH of SIB1, and the second resource corresponding to the control information of SIB1 includes the CORESET and / or SS corresponding to the second PDCCH of SIB1.

[0042] In conjunction with the second aspect, in some implementations of the second aspect, the SIB1 response message is a RAR, and the third resource corresponding to the SIB1 response message includes the CORESET and / or SS corresponding to the third PDCCH of the RAR.

[0043] In conjunction with the second aspect, in some implementations of the second aspect, the third PDCCH reuses the CORESET and / or SS corresponding to the second PDCCH.

[0044] In conjunction with the second aspect, in some implementations of the second aspect, when the first configuration information is carried in the MIB and / or PBCH payload of the SSB, the first configuration information includes at least one of the following: the signal format corresponding to the SIB1 request message; the second resource.

[0045] In conjunction with the second aspect, in some implementations of the second aspect, the MIB and / or PBCH of the SSB include second indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

[0046] In conjunction with the second aspect, in some implementations of the second aspect, the MIB and / or PBCH of the SSB include third indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

[0047] In conjunction with the second aspect, in certain implementations of the second aspect, when the first configuration information is carried in the MIB and / or PBCH load of the SSB and in the first PDCCH, or when the first configuration information is carried in the MIB and / or PBCH load of the SBB and in the first PDSCH; the MIB and / or PBCH load includes fourth indication information, the fourth indication information being used for the CORESET and / or SS corresponding to the first PDCCH; or, the fourth indication information being used to indicate that the first PDCCH multiplexes the CORESET and / or SS corresponding to the control information of SIB1.

[0048] In conjunction with the second aspect, in some implementations of the second aspect, the MIB and / or PBCH payload further includes fifth indication information, which is used to indicate the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

[0049] In conjunction with the second aspect, in some implementations of the second aspect, the first PDCCH or the first PDSCH includes sixth indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain position corresponding to the SIB1 request message.

[0050] In conjunction with the second aspect, in some implementations of the second aspect, the first PDCCH or the first PDSCH includes seventh indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

[0051] In conjunction with the second aspect, in some implementations of the second aspect, the first PDCCH or the first PDSCH includes eighth indication information, which is used to indicate one or more of the following: the RO frequency domain multiplexing number corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between the SSB and the RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message.

[0052] In conjunction with the second aspect, in some implementations of the second aspect, the first PDCCH or the first PDSCH further includes ninth indication information, which is used to indicate the subcarrier spacing corresponding to the PRACH; or, the subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB; or, the subcarrier spacing corresponding to the PRACH is a default configuration value.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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

[0058] Figure 1 shows a wireless communication system 10 provided in an embodiment of this application.

[0059] 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.

[0060] Figure 3 is a schematic diagram of a wireless communication method provided in an embodiment of this application.

[0061] Figure 4 is a schematic structural diagram of a user equipment 100 provided in an embodiment of this application. Detailed Implementation

[0062] 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.

[0063] Hereinafter, the terms "first," "second," and "third," etc., are used for descriptive purposes only, intended to distinguish the same or similar concepts in different situations, and should not be construed as indicating or implying relative importance or implicitly specifying the number or sequence of the indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0064] 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.

[0065] 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.

[0066] Communication system architecture

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] The network device in the embodiments of this application may refer to a centralized unit (CU) or a distributed unit (DU), or the network device may include both CU and DU.

[0074] 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.

[0075] 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).

[0076] With the increasing prevalence of cellular networks, energy consumption is becoming a more prominent issue for operators. For example, as 5G becomes more widespread 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. Network energy consumption primarily comes from the radio access network, especially active antenna units (AUUs). Data centers and fiber optic transmission account for a smaller share of energy consumption. The power consumption of the radio 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 radio access equipment, even when data transmission or reception is not in progress.

[0077] According to a report by the Global System for Mobile Communications Association (GSMA), energy costs for mobile networks account for approximately 23% of operators' total costs. The study item (SI) in 3GPP Release 18 simulated and evaluated several candidate research directions for network energy saving. 3GPP Release 19, based on the SI study, listed three more candidate directions, one of which is On-Demand Request (SIB1).

[0078] 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 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 SIB1 to the UE. In other words, the SIB1 transmission method changes from periodic broadcasting to on-demand transmission. This requires designing the SIB1 request signal and providing the configuration information necessary for request signal transmission and / or SIB1 transmission.

[0079] Scenarios for On-Demand Request SIB1

[0080] The following description uses an NES cell as an example to illustrate how SIB1 requests are supported. In the on-demand SIB1 request mode (or request mode, SIB1 request mode), the UE first needs to 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. The NES cell is the cell that supports SIB1 requests. The neighboring cells of the NES cell can be cells that support SIB1 requests or cells that support traditional broadcast mode.

[0081] Figures 2A to 2D are schematic diagrams illustrating the scenarios in which the On-Demand Request SIB1 is applicable, as provided in the embodiments of this application. The scenarios in which the On-Demand Request SIB1 is applicable may include the following:

[0082] Scene 1:

[0083] The UE can obtain SIB1 request configuration information from neighboring cells and request SIB1 from 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 SIB1 request configuration information from the neighboring cell with the better signal and request SIB1 from the neighboring cell; or, when the UE has difficulty obtaining complete and accurate SIB1 information from the NES cell for some reason, the UE may obtain 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:

[0084] 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.

[0085] 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).

[0086] S201b, the second network device sends an SIB1 request for configuration information to the UE.

[0087] 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.

[0088] S201c, the UE sends an SIB1 request message to the second network device.

[0089] S201d, the second network device sends SIB1 to the UE.

[0090] Scene 2:

[0091] The UE can obtain the SIB1 request configuration information from a neighboring cell and request SIB1 from the neighboring cell based on this configuration information. Then, the NES cell obtains the SIB1. For example, although the UE is within the signal coverage range of a neighboring cell, the signal from 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 from the neighboring cell, and then, according to network instructions, obtain the SIB1 from the NES cell with better signal quality to obtain 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:

[0092] S202a, the second network device sends SIB1 request configuration information to the UE.

[0093] S202b, the UE sends an SIB1 request message to the second network device.

[0094] S202c, the second network device sends the relevant information of UE request SIB1 to the first network device.

[0095] S202d, the first network device sends SIB1 to the UE.

[0096] Scene 3:

[0097] The UE can obtain SIB1 request configuration information from a neighboring 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. Therefore, it instructs the UE to request SIB1 from the NES cell. Alternatively, if the UE is initially located in a neighboring cell, has established a communication connection with the network equipment of the neighboring cell, and has received SIB1 request configuration information sent by the neighboring cell, and then needs to reselect to the NES cell, the UE can request 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:

[0098] 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.

[0099] S203b, the second network device sends an SIB1 request for configuration information to the UE.

[0100] S203c, the UE sends an SIB1 request message to the first network device.

[0101] S203d, the first network device sends SIB1 to the UE.

[0102] Scene 4:

[0103] 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:

[0104] S204a, the first network device in the NES cell sends an SIB1 request for configuration information to the UE.

[0105] S204b, the UE sends an SIB1 request message to the first network device.

[0106] S204c, the first network device sends SIB1 to the UE.

[0107] In the above scenario, the NES cell or its neighboring cells can provide the UE with on-demand 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 from the network device, the UE can complete the subsequent processes required based on the SIB1, such as the UE accessing the random access function of the NES cell.

[0108] 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.

[0109] 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 request mode.

[0110] The wireless communication method provided in this application provides an indication method for SIB1 request configuration, such as using the master information block (MIB), physical broadcast channel (PBCH) payload, physical downlink control channel (PDCCH), physical downlink shared channel (PDSCH), or a portion thereof to indicate SIB1 request configuration information. Furthermore, based on the characteristics of the random access channel (RACH), an SIB1 request signal is designed to provide SIB1 control information and / or configuration information corresponding to the SIB1 response message, ensuring smooth SIB1 request and response in request mode. The technical solution of this application can be applied to scenarios where SIB1 is requested on demand, such as the scenarios shown in Figures 2A to 2D, and is particularly applicable to the scenario shown in Figure 2D, but this application does not limit it.

[0111] The wireless communication method provided in this application embodiment can indicate the configuration information of the SIB1 request message through the MIB and / or PBCH payload in the SSB, or the MIB and / or PBCH payload and PDCCH, or the MIB and / or PBCH payload and PDSCH. For ease of understanding, the content of the MIB in the SSB is provided below:

[0112] System frame number (SFN): The high 6 bits of the 10ms system frame number.

[0113] During random access, the UE needs to obtain information such as time-domain resources and random access codes through SIB1 to send the first message Msg1. After the UE finds the MIB, it can obtain the subcarrier offset value between the SSB frequency domain start position and the SIB1 PDCCH frequency domain position through the parameter ssb-SubcarrierOffset in the MIB and / or the information in the PBCH payload. Then, the UE can obtain information about the common control resource set (CORESET) through the parameter PDCCH-ConfigSIB1 in the MIB. The content of PDCCH-ConfigSIB1 is as follows:

[0114] PDCCH-ConfigSIB1::=SEQUENCE{

[0115] controlResourceSetZero ControlResourceSetZero,

[0116] searchSpaceZero SearchSpaceZero

[0117] }

[0118] The UE can determine the number of symbols occupied by the SIB1 PDCCH and the resource block (RB) offset through ControlResourceSetZero of PDCCH-ConfigSIB1. It can also determine the system frame number, time slot index and other time-domain related configurations through SearchSpaceZero of ControlResourceSetZero.

[0119] As mentioned above, the SIB1 request mode is a more intelligent method compared to the traditional broadcast mode. This mode avoids unnecessary information broadcasting and reduces the energy consumption of the base station. However, how to configure the SIB1 request message is a problem that urgently needs to be solved.

[0120] To address the aforementioned issues, embodiments of this application provide configuration information for SIB1 requests. By designing the content and indication method of this configuration information, the UE can make SIB1 requests and receive SIB1 requests based on this configuration information. The wireless communication method provided by embodiments of this application is described below with reference to the accompanying drawings.

[0121] For example, Figure 3 illustrates a wireless communication method provided in an embodiment of this application. It includes the following steps S301 and S302:

[0122] S301, the UE receives first configuration information sent by the network device. The first configuration information includes first indication information, which is used to indicate that the first cell where the UE is located is a cell that supports the SIB1 request.

[0123] The first configuration information includes the message configuration for the UE to initiate an SIB1 request, which can also be described as SIB1 request configuration information.

[0124] In some embodiments, the network device may be a device in a first cell or a device in a neighboring cell of the first cell, such as corresponding to the first network device or the second network device mentioned above.

[0125] In some embodiments, the first cell is the cell currently serving the UE. The first cell is a cell that supports SIB1 requests, such as an NES cell. The neighboring cells of the first cell can be cells that support SIB1 requests, or they can be traditional cells that support broadcast mode.

[0126] Optionally, before receiving the first configuration information sent by the network device, the UE may send a configuration information request message to the network device to request the first configuration information. After receiving the configuration information request message sent by the UE, the network device may respond to the request and send the first configuration information to the UE.

[0127] It should be noted that the first configuration information may include various configurations in the request mode, such as the resources and signal format corresponding to the SIB1 request message, the resources corresponding to the SIB1 control information, and the resources corresponding to the SIB1 response message. Therefore, the first configuration information can be divided into several parts, which can be carried in different messages; or indicated in different ways, such as through one or more of MIB, PBCH payload, PDCCH, PDSCH, etc.

[0128] The PBCH payload can be equated with the PBCH transport block, and may be described by different names in different contexts.

[0129] In some embodiments, the network device may send first configuration information to the UE via the SSB. For example, this first configuration information may be carried in the MIB and / or PBCH payload within the SSB.

[0130] In some embodiments, the network device may indicate first configuration information to the UE via the MIB and / or PBCH payload in the SSB, as well as the first PDCCH. That is, the first configuration information may be carried in the MIB and / or PBCH payload, as well as the first PDCCH. For example, the first indication information in the first configuration information may be carried in the MIB and / or PBCH payload, and the signal format corresponding to the SIB1 request message and the system frame in which the RO corresponding to the SIB1 request message is located may be carried in the first PDCCH.

[0131] In some embodiments, the network device can indicate first configuration information to the UE through the MIB and / or PBCH payload in the SSB, as well as the first PDSCH, where the first PDSCH is the PDSCH scheduled by the first PDCCH. That is, the first configuration information can be carried in the MIB and / or PBCH payload, as well as the first PDSCH. For example, the first indication information in the first configuration information can be carried in the MIB and / or PBCH payload, and the frequency domain start position and the time domain position corresponding to the SIB1 request message can be carried in the first PDSCH.

[0132] For example, when the first indication information is carried in the MIB, it can be carried by any one of the reserved bits, reinterpretation bits, or newly added bits in the MIB; when the first indication information is carried in the PBCH payload, it can be carried by any one of the reserved bits, reinterpretation bits, or newly added bits in the PBCH payload.

[0133] It should be noted that the reserved bits can be bits for partial field reinterpretation, or reserved bits can contain reinterpretation bits. This embodiment only uses the above-mentioned bits as an example of carrying the first indication information, but this application does not limit the type of bits carrying the first indication information. Bits that have no practical meaning in SIB1 request mode can be used to indicate the first indication information.

[0134] In some embodiments, the SIB1 request message may be, for example, a physical random access channel (PRACH) signal. The message type of the SIB1 request message may include any one of the following: a random preamble, the root sequence of the random preamble, or the first message Msg1 in the random access process.

[0135] In some embodiments, the first configuration information may include at least one of the following: a first resource corresponding to the SIB1 request message, the first resource including time-domain resources and / or frequency-domain resources corresponding to the SIB1 request message; a signal format corresponding to the SIB1 request message; a preamble or root sequence index corresponding to the SIB1 request message, or a cyclic shift corresponding to the preamble generated by the root sequence index; a frequency-domain multiplexing number for the random access opportunity (RO) corresponding to the SIB1 request message; a second resource corresponding to the control information of SIB1, the second resource including time-domain resources and / or frequency-domain resources corresponding to the control information of SIB1; a third resource corresponding to the SIB1 response message of the SIB1 request message, the third resource including time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message of the SIB1 request message; a window length corresponding to the SIB1 response message of the SIB1 request message; a power ramp-up step size for retransmitting the SIB1 request message; a transmission period or transmission pattern information of the first PDCCH; and a mapping relationship between SSB and RO.

[0136] The SIB1 response message is a response message sent by the network device in response to the SIB1 request message. The SIB1 response message can be a random access response (RAR), and the third resource in this embodiment can be the time-domain resource and / or frequency-domain resource of the PDCCH of the RAR.

[0137] In one possible implementation, a preamble index can be configured for SIB1 requests; alternatively, a root sequence index can be configured or SIB1 requests can be made directly through the prach-RootSequenceIndex.

[0138] It should be understood that the first configuration information described above is merely an example. As the communication system evolves, the first configuration information may include more other types of parameters. New configurations can be indicated, for example, by adding (or optimizing) one or more of the following bits: MIB, PBCH payload, first PDCCH, and first PDSCH. This application embodiment does not limit this.

[0139] For example, the UE can send an SIB1 request message to the network device on a first resource according to the instructions of the first configuration information. The UE can also receive SIB1 control information sent by the network device on a second resource according to the instructions of the first configuration information. The UE can also receive control information of an SIB1 response message sent by the network device on a third resource according to the instructions of the first configuration information.

[0140] It should be understood that, in the embodiments of this application, the first resource, the second resource, and the third resource respectively refer to the time-domain resources and / or frequency-domain resources corresponding to the SIB1 request message, the time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1, and the time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message. Here, "first," "second," and "third" are not intended to limit the timing and number of technical features.

[0141] Optionally, the network device can also indicate the resources of the SIB1 control information through the SIB1 response message, and the UE can receive the SIB1 control information according to the resources indicated by the SIB1 response message.

[0142] In some embodiments, the SIB1 response message may be, for example, a Random Access Response (RAR). The control information for SIB1 may be, for example, the PDCCH corresponding to SIB1.

[0143] In some embodiments, the first resource corresponding to the SIB1 request message may include at least one of the following: the system frame in which the random access opportunity (RO) corresponding to the SIB1 request message is located; the subframe number in which the RO is located within a system frame containing the RO; the number of time slots in which the RO is located within a subframe containing the RO; the start symbol of the RO in a time slot containing the RO; the number of ROs in a time slot containing the RO; and a frequency domain start position, which can be determined based on any one of the active bandwidth part (BWP), the initial bandwidth part (initial BWP), or the uplink bandwidth part (UL BWP) and an offset value.

[0144] Specifically, msg1-FrequencyStart can be used to indicate the offset of the RACH frequency domain resource relative to the UL BWP. For example, ssb-SubcarrierOffset can be used to align RBs, and then the offset value at the RBG granularity can be indicated. The unit of the offset value can be a resource block (RB) or a resource block group (RBG), which is a combination of multiple RBs.

[0145] It should be understood that determining the frequency domain start position by combining a specific BWP with an offset value can improve the flexibility and accuracy of frequency domain resource allocation in communication systems. Network devices can flexibly adjust the frequency domain start position, thereby achieving more efficient spectrum utilization.

[0146] In some embodiments, the signal format corresponding to the SIB1 request message can be a format supported by RACH. RACH can be the channel used by the UE to initiate an SIB1 request with the network device. The UE can send an SIB1 request message to the base station via RACH to obtain SIB1. For example, when the SIB1 request message includes a random access preamble, the UE can send the random access preamble to the network device via RACH to request SIB1 from the network device. The SIB1 request message may include a preamble index, indicating the root sequence and / or cyclic shift corresponding to different sequence lengths as the preamble for the SIB1 request. RACH supports multiple signal formats, and the network device can indicate the signal format corresponding to the SIB1 request message to the UE through first configuration information.

[0147] It should be noted that the signal format, transmission period, and other information supported by RACH are currently indicated by 8-bit Prach-ConfigurationIndex signaling, which includes various configurations for UE flexibility. However, considering that SIB1 requests require sending an SIB1 request signal to the network device, a smaller number of configuration information types can meet the requirements. Therefore, to save signaling overhead, a smaller number of related configurations can be set. For example, several can be selected from the existing 8-bit configurations, several can be custom-designed, or the default configuration can be set. By reducing the number of configurations corresponding to RACH, the number of bits occupied by the current RACH configuration can be reduced, such as from the current 8 bits to 3 bits.

[0148] In some embodiments, the RO frequency domain reuse number corresponding to the SIB1 request message may be, for example, the default value of 1.

[0149] In some embodiments, the UE can obtain the association relationship between RO and SSB based on the first configuration information, determine the beam relationship based on the association relationship, and then send an SIB1 request message on the corresponding beam.

[0150] In some embodiments, the control information for SIB1 may be the PDCCH of SIB1 (denoted as the second PDCCH). The second resource corresponding to the control information of SIB1 may include the CORESET and / or SS corresponding to the second PDCCH of SIB1. The SIB1 response message may be RAR. The third resource corresponding to the SIB1 response message may include the CORESET and / or search space (SS) corresponding to the PDCCH of RAR (denoted as the third PDCCH). For cells that support SIB1 requests, the CORESET and SS can be indicated by the ssb-SubcarrierOffset+pdcch-ConfigSIB1 field in the MIB and / or PBCH payload. The frequency domain resources and time domain symbol number corresponding to the CORESET and SS can be the default configuration.

[0151] In some embodiments, the third PDCCH may reuse the CORESET and / or SS of the second PDCCH.

[0152] In some embodiments, the transmission period of the first PDCCH is used to indicate the transmission time interval of the first PDCCH. The UE can obtain the time interval at which to monitor the first PDCCH based on the transmission period of the first PDCCH in order to receive corresponding control information. This enables the UE to accurately receive control information and avoids unnecessary monitoring resource consumption. The transmission pattern information of the first PDCCH may include the transmission mode of the first PDCCH in the time domain and / or frequency domain. For example, in the time domain, the transmission pattern information may indicate which subframes within a transmission frame the first PDCCH is transmitted on; in the frequency domain, the transmission pattern information may indicate which resource blocks (RBs) the first PDCCH occupies within the system bandwidth. Through the transmission pattern information, the UE can more accurately search for and receive the first PDCCH at the corresponding time and frequency domain resource locations, improving the efficiency and accuracy of UE blind detection.

[0153] S302, the UE sends an SIB1 request message to the first cell. This SIB1 request message is used to request SIB1.

[0154] In some embodiments, the UE may send an SIB1 request message to the network device on a first resource. Upon receiving the SIB1 request message, the network device may, in response to the SIB1 request message, send an SIB1 response message to the UE, or send SIB1 control information to the UE, or send an SIB1 message to the UE. In this embodiment, the SIB1 response message refers to a response message to the SIB1 request message.

[0155] As an example, the UE can obtain the configuration information of the second PDCCH of SIB1 (such as the CORESET and / or SS corresponding to the second PDCCH) based on the first configuration information. Based on the configuration information of the second PDCCH, the UE obtains and decodes the second PDCCH to obtain parameters such as the resource allocation information and modulation / coding scheme of the scheduled physical downlink shared channel (PDSCH). Based on the parameters in the second PDCCH, the UE determines the resource location and scheduling information of the PDSCH where SIB1 is located, and demodulates the PDSCH where SIB1 is located based on this information to obtain SIB1.

[0156] As another example, the UE can obtain the configuration information of the third PDCCH of the RAR (such as the CORESET and / or SS of the third PDCCH) based on the first configuration information. Based on the configuration information of the third PDCCH, the UE obtains and decodes the third PDCCH to obtain parameters such as the resource allocation information and modulation / coding scheme of the PDSCH it schedules. Based on the parameters in the third PDCCH, the UE determines the PDSCH resource location and scheduling information of the RAR, and demodulates the PDSCH of the RAR based on this information to obtain the RAR. Then, the UE can obtain and decode the second PDCCH based on the configuration information of the second PDCCH of SIB1 included in the RAR, and then receive SIB1 according to the method described above.

[0157] It should be understood that, in the embodiments of this application, the first PDCCH, the second PDCCH, and the third PDCCH refer to the PDCCH used to indicate the first configuration information (or carry the first configuration information), the PDCCH of SIB1, and the PDCCH of SIB1 response messages (such as RAR), respectively. The terms "first," "second," and "third" here are not intended to limit the timing and number of technical features.

[0158] The wireless communication method provided in the embodiments of this application enables network devices and UEs to coordinate and synchronize parameters for SIB1 requests and / or SIB1 responses by providing configuration information for SIB1 request scenarios. This is beneficial for optimizing system resource allocation, ensuring smooth SIB1 requests and responses in request mode, and thus saving network energy.

[0159] The following section provides a detailed description of the different transmission methods for the first configuration information.

[0160] Method 1 for transmitting the first configuration information: The first configuration information is carried by the MIB and / or PBCH payload in the SSB.

[0161] In some embodiments, the first configuration information may be indicated by a method specified in the protocol and indicated by the MIB and / or PBCH payload in the SSB.

[0162] In some embodiments, the MIB and / or PBCH payload may carry first indication information in the first configuration information, which may be used to indicate that the first cell is a cell that supports the SIB1 request.

[0163] For example, the first indication information can be carried by any one of the reserved bits, reinterpretation bits, or newly added bits in the MIB; or it can be carried by any one of the reserved bits, reinterpretation bits, or newly added bits in the PBCH payload.

[0164] In some embodiments, the MIB and / or PBCH payload may also carry second indication information in the first configuration information. The second indication information may be used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

[0165] In some embodiments, the MIB and / or PBCH payload may also carry third indication information in the first configuration information, which may be used to indicate the frequency domain start position corresponding to the SIB1 request message.

[0166] As an example, the first field in the MIB and / or PBCH payload can indicate that the current UE's first cell is an NES cell, which is a cell that supports SIB1 requests. This first field can be indicated by reserved bits in the MIB and / or PBCH payload; alternatively, it can be indicated by newly added bits in the MIB and / or PBCH payload; or alternatively, it can be indicated by reinterpretation bits in the MIB and / or PBCH payload.

[0167] In some embodiments, at least one of the following can be the default configuration: the multiplexing pattern of the CORESET and SSB of the SIB1 control information, the number of frequency domain resources occupied by the CORESET of the SIB1 control information, the number of symbols occupied by the CORESET of the SIB1 control information, and / or the offset value. This default configuration can have different configurations depending on the sub-carrier spacing (SCS) configuration combination of the SSB and PDCCH and / or the carrier frequency range. Furthermore, the number of SSs in each slot corresponding to the SS of the SIB1 control information and / or the starting symbol in the slot can also be the default configuration. This default configuration can have different default configurations depending on the multiplexing pattern of the SSB and CORESET and / or the carrier frequency range.

[0168] In some embodiments, when the SIB1 request message multiplexes Msg1, the subcarrier spacing of Msg1 can also be configured. This signaling can be msg1-SubcarrierSpacing, and the associated signaling can be SubcarrierSpacing. The specific value can be determined by the frequency range.

[0169] As an example, one or more of the format, period, and transmission time-domain location information of the SIB1 request signal can be indicated by the second field in the MIB and / or PBCH payload.

[0170] As an example, the frequency domain resource start position of the SIB1 request signal can be indicated by the third field in the MIB and / or PBCH load. The offset value is in units of RBs or a resource block group (RBG), which is a combination of multiple RBs.

[0171] In some embodiments, the SIB1 request signal can be a PRACH signal. During RACH random access, the frequency domain multiplexing number of the RO is the default configuration, for example, 1. This PRACH signal can be the default root sequence of the corresponding format, with a many-to-one mapping relationship between SSBs and ROs, or all SSBs can be associated with the same RO. The SCS corresponding to the PRACH signal can be indicated by the SubcarrierSpacing field in the MIB, or the SCS corresponding to the PRACH signal may have different default configuration values ​​depending on the carrier frequency.

[0172] As an example, the reference signal received power (RSRP) threshold for SSB or beam selection can be indicated via the fourth field in the MIB and / or PBCH load. The RSRP threshold for SSB or beam selection can be a default configuration value.

[0173] In some embodiments, after receiving the SIB1 request message, the network device can send a RAR indication to the UE to confirm receipt of the SIB1 request information. The RAR window length is the default configuration, or it may have different default configuration values ​​depending on the carrier frequency.

[0174] In some embodiments, if the UE does not receive a confirmation message (RAR) for the SIB1 request, the UE can increase the transmission power of the next SIB1 request message based on the power ramp-up step size corresponding to the SIB1 request message. This ramp-up step size can be a default configuration value.

[0175] Method 2 for transmitting the first configuration information: The first configuration information is carried through the MIB and / or PBCH payload in the SSB, and the first PDCCH.

[0176] In some embodiments, the first configuration information may be indicated by a protocol agreement, the MIB and / or PBCH payload in the SSB, and the first PDCCH indication.

[0177] In some embodiments, when the first configuration information is carried via the MIB and / or PBCH payload and the first PDCCH, the MIB and / or PBCH payload may include first indication information indicating that the first cell is a cell that supports the SIB1 request. Furthermore, the MIB and / or PBCH payload may also include the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

[0178] For example, the first indication information can be carried by any one of the reserved bits, reinterpretation bits, or new bits in the MIB; and / or, the first indication information can be carried by any one of the reserved bits, reinterpretation bits, or new bits in the PBCH payload.

[0179] In some embodiments, the first PDCCH may carry at least one of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, the time domain position corresponding to the SIB1 request message, the frequency domain start position corresponding to the SIB1 request message, the frequency domain multiplexing number of the RO corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between SSB and RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message, etc.

[0180] In some embodiments, the first PDCCH may further include the number of retransmissions due to failure for the SIB1 request message. For example, when the SIB1 request message reuses Msg1, the number of retransmissions due to failure can be the number of retransmissions due to failure for Msg1.

[0181] In some embodiments, the first PDCCH may further include the subcarrier spacing corresponding to the PRACH, wherein the subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB, or the subcarrier spacing corresponding to the PRACH is a default configuration value.

[0182] In some embodiments, configuration information for the first PDCCH can be indicated through one or more fields in the MIB and / or PBCH payload, such as indicating the CORESET and SS configuration of the first PDCCH. Optionally, the resources of the first PDCCH can reuse the resource configuration of the control information in SIB1.

[0183] In some embodiments, the first PDCCH transmission period or transmission pattern information can be indicated by a second field in the MIB and / or PBCH payload. The transmission pattern of the first PDCCH is the association between the first PDCCH and the SSB validity opportunity in a single SSB period, and the first PDCCH can be used to indicate SIB request configuration information.

[0184] In some embodiments, one or more of the format, period, and transmission time-domain location information of the SIB1 request signal can be indicated by a third field in the first PDCCH. The SIB1 request signal can be a PRACH signal.

[0185] In some embodiments, the frequency domain resource start position of the SIB1 request message can be indicated by a fourth field in the first PDCCH, which is indicated by an offset value relative to the active BWP, initial BWP, or UL BWP. The unit of the offset value is RB or RBG.

[0186] In some embodiments, multiple fields in the PDCCH can indicate one or more of the following: the frequency domain multiplexing number of the RO of the RACH, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between SSB and RO, the RAR window length, and the power ramp-up step size for retransmitting the SIB1 request message. The SCS corresponding to the PRACH signal can be indicated by a field in the first PDCCH, or the SCS corresponding to the PRACH signal can also be indicated by the SubcarrierSpacing field in the MIB, or the SCS corresponding to the PRACH signal can have different default configuration values ​​depending on the carrier frequency.

[0187] The third method for transmitting the first configuration information is as follows: the first configuration information is carried by the MIB and / or PBCH payload in the SSB, and by the first PDSCH.

[0188] In some embodiments, the first configuration information can be indicated through a protocol agreement, the MIB and / or PBCH payload in the SSB, and a first PDSCH indication. The first PDSCH can be a PDSCH scheduled by the first PDCCH.

[0189] In some embodiments, when the first configuration information is carried via the MIB and / or PBCH payload and the first PDSCH, the MIB and / or PBCH payload may include first indication information indicating that the first cell is a cell that supports the SIB1 request. Furthermore, the MIB and / or PBCH payload may also include the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

[0190] For example, the first indication information can be carried by any one of the reserved bits, reinterpretation bits, or new bits in the MIB; and / or, the first indication information can be carried by any one of the reserved bits, reinterpretation bits, or new bits in the PBCH payload.

[0191] In some embodiments, the first PDSCH may carry at least one of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, the time domain position corresponding to the SIB1 request message, the frequency domain start position corresponding to the SIB1 request message, the frequency domain multiplexing number of the RO corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between SSB and RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message, etc.

[0192] In some embodiments, the first PDSCH may further include the subcarrier spacing corresponding to the PRACH, wherein the subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB, or the subcarrier spacing corresponding to the PRACH is a default configuration value.

[0193] In some embodiments, configuration information for the first PDCCH can be indicated through one or more fields in the MIB and / or PBCH payload, such as indicating the CORESET and SS configuration of the first PDCCH. Optionally, the resources of the first PDCCH can reuse the resource configuration of the control information in SIB1.

[0194] In some embodiments, the first PDCCH transmission period or transmission pattern information can be indicated by a second field in the MIB and / or PBCH payload. The transmission pattern of the first PDCCH is the association between the first PDCCH and the SSB validity opportunity in a single SSB period, and the first PDCCH can be used to indicate SIB request configuration information.

[0195] In some embodiments, one or more of the format, period, and transmission time-domain location information of the SIB1 request signal can be indicated by a third field in the first PDSCH. The SIB1 request signal can be a PRACH signal.

[0196] In some embodiments, the frequency domain resource start position of the SIB1 request message can be indicated by a fourth field in the first PDSCH, which is indicated by an offset value relative to the active BWP, initial BWP, or UL BWP. The unit of the offset value is RB or RBG.

[0197] In some embodiments, multiple fields in the PDSCH can indicate one or more of the following: the frequency domain multiplexing number of the RO of the RACH, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between SSB and RO, the RAR window length, and the power ramp-up step size for retransmitting the SIB1 request message. The SCS corresponding to the PRACH signal can be indicated by a field in the first PDSCH, or the SCS corresponding to the PRACH signal can also be indicated by the SubcarrierSpacing field in the MIB, or the SCS corresponding to the PRACH signal can have different default configuration values ​​depending on the carrier frequency.

[0198] It should be understood that the main difference between the third method of transmitting the first configuration information and the second method of transmitting the first configuration information is that the information indicated by the first PDCCH in the second method of transmission is indicated by the first PDSCH in the third method of transmission.

[0199] The fourth method for transmitting the first configuration information is as follows: the first configuration information is carried by the MIB and / or PBCH payload in the SSB, as well as the first PDCCH and the first PDSCH.

[0200] The main difference between transmission mode four and transmission modes two or three of the first configuration information is that the information indicated by the first PDCCH in transmission mode two is indicated by both the first PDCCH and the first PDSCH in transmission mode four. Alternatively, the information indicated by the first PDSCH in transmission mode two is indicated by both the first PDCCH and the first PDSCH in transmission mode four.

[0201] The specific content jointly indicated by the first PDCCH and the first PDSCH can be flexibly allocated, with the first PDCCH indicating which part and the first PDSCH indicating which part. This application embodiment does not limit this allocation. Specific details can be found in the descriptions above, and will not be repeated here.

[0202] The wireless communication method provided in the embodiments of this application enables network devices and UEs to coordinate and synchronize parameters for SIB1 requests and / or SIB1 responses by providing configuration information for SIB1 request scenarios. This is beneficial for optimizing system resource allocation, ensuring smooth SIB1 requests and responses in request mode, and thus saving network energy.

[0203] As exemplarily shown in FIG4, 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.

[0204] It should be noted that the structure of the user equipment 100 shown in the embodiment of Figure 4 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.

[0205] 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.

[0206] 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.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] 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.

[0212] 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.

[0213] 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.

[0214] 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.

[0215] 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.

[0216] 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.

[0217] 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)).

[0218] 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.

[0219] 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 User Equipment (UE), including: The system receives first configuration information sent by a network device. The first configuration information includes first indication information, which is used to indicate that the first cell where the UE is located is a cell that supports System Information Block 1 (SIB1) request. A SIB1 request message is sent to the first cell, the SIB1 request message being used to request SIB1.

2. The method according to claim 1, characterized in that, The network device is the device in the first cell.

3. The method according to claim 1 or 2, characterized in that, The first configuration information is carried in the master information block (MIB) of the synchronization signal and physical downlink control channel (SSB) and / or the physical broadcast channel (PBCH) payload; or, The first configuration information is carried in the MIB and / or PBCH payload of the SSB, and also in the first physical downlink control channel (PDCCH). or, The first configuration information is carried in the MIB and / or PBCH payload of the SBB, and in the first physical downlink shared channel PDSCH, wherein the first PDSCH is the PDSCH scheduled by the first PDCCH.

4. The method according to claim 3, characterized in that, The MIB of the SSB carries the first indication information through reserved bits or added bits; and / or, The PBCH payload of the SSB carries the first indication information through reserved bits or added bits.

5. The method according to any one of claims 1-4, characterized in that, The SIB1 request message includes any of the following: Physical Random Access Channel (PRACH) signal; Random preamble; The root sequence of a random preamble; The first message Msg1 during the random access process.

6. The method according to any one of claims 1-5, characterized in that, The first configuration information includes at least one of the following: The first resource corresponding to the SIB1 request message includes the time-domain resource and / or frequency-domain resource corresponding to the SIB1 request message. The signal format corresponding to the SIB1 request message; The preamble or root sequence index corresponding to the SIB1 request message, or the cyclic shift corresponding to the preamble generated by the root sequence index; The random access timing RO frequency domain reuse number corresponding to the SIB1 request message; The second resource corresponding to the control information of SIB1 includes the time-domain resource and / or frequency-domain resource corresponding to the control information of SIB1. The third resource corresponding to the SIB1 response message of the SIB1 request message includes time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message. The window length corresponding to the SIB1 response message of the SIB1 request message; The power ramp-up step size of the SIB1 request message is sent again; The transmission period or transmission pattern information of the first PDCCH; The mapping relationship between the SSB and the RO.

7. The method according to claim 6, characterized in that, The method further includes: The first resource sends the SIB1 request message to the network device.

8. The method according to claim 7, characterized in that, The SIB1 request message is a PRACH signal, and the second resource includes at least one of the following: The system frame where the RO corresponding to the SIB1 request message is located; The subframe number where the RO is located within a system frame containing the RO; The number of time slots containing the RO within a subframe; The start symbol of the RO within a time slot containing the RO; The number of ROs within a time slot containing the ROs; The frequency domain start position is determined based on any one of the active bandwidth portion (BWP), the initial BWP, or the uplink bandwidth portion (UL BWP) and an offset value.

9. The method according to claim 7 or 8, characterized in that, The signal format corresponding to the SIB1 request message is a RACH-supported format.

10. The method according to any one of claims 7-9, characterized in that, The control information of SIB1 is the second physical downlink control channel (PDCCH) of SIB1, and the second resource corresponding to the control information of SIB1 includes the control resource set (CORESET) and / or the search space (SS) corresponding to the second PDCCH of SIB1.

11. The method according to any one of claims 7-10, characterized in that, The SIB1 response message is a Random Access Response (RAR), and the third resource corresponding to the SIB1 response message includes the CORESET and / or SS corresponding to the third PDCCH of the RAR.

12. The method according to claim 11, characterized in that, The third PDCCH reuses the CORESET and / or SS corresponding to the second PDCCH.

13. The method according to any one of claims 3-12, characterized in that, When the first configuration information is carried in the MIB and / or PBCH payload of the SSB, the first configuration information includes at least one of the following: The signal format corresponding to the SIB1 request message; The first resource.

14. The method according to claim 13, characterized in that, The SSB's MIB and / or PBCH include second indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

15. The method according to claim 13 or 14, characterized in that, The SSB's MIB and / or PBCH include third indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

16. The method according to any one of claims 3-12, characterized in that, When the first configuration information is carried in the MIB and / or PBCH payload of the SSB, and carried in the first PDCCH, or when the first configuration information is carried in the MIB and / or PBCH payload of the SBB, and carried in the first PDSCH. The MIB and / or PBCH load includes fourth indication information, which is used for the CORESET and / or SS corresponding to the first PDCCH; or, the fourth indication information is used to indicate that the first PDCCH multiplexes the CORESET and / or SS corresponding to the control information of SIB1.

17. The method according to claim 16, characterized in that, The MIB and / or PBCH payload also includes fifth indication information, which is used to indicate the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

18. The method according to claim 16 or 17, characterized in that, The first PDCCH or the first PDSCH includes sixth indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

19. The method according to any one of claims 16-18, characterized in that, The first PDCCH or the first PDSCH includes a seventh indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

20. The method according to any one of claims 16-19, characterized in that, The first PDCCH or the first PDSCH includes an eighth indication information, which is used to indicate one or more of the following: the RO frequency domain multiplexing number corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between the SSB and the RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message.

21. The method according to any one of claims 16-20, characterized in that, The first PDCCH or the first PDSCH further includes ninth indication information, which is used to indicate the subcarrier spacing corresponding to the PRACH; or, The subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB; or... The subcarrier spacing corresponding to PRACH is the default configuration value.

22. A method for wireless communication, characterized in that, Applied to network devices, including: Send first configuration information to the UE. The first configuration information includes first indication information, which is used to indicate that the first cell where the UE is located is a cell that supports SIB1 request.

23. The method according to claim 22, characterized in that, The network device is a device in the first cell; the method further includes: The system receives an SIB1 request message sent by the UE, the SIB1 request message being used to request SIB1.

24. The method according to claim 22 or 23, characterized in that, The first configuration information is carried in the SSB's MIB and / or PBCH payload; or, The first configuration information is carried in the MIB and / or PBCH payload of the SSB, and also in the first PDCCH; or, The first configuration information is carried in the MIB and / or PBCH load of the SBB, and also in the first PDSCH, which is the PDSCH scheduled under the first PDCCH.

25. The method according to claim 24, characterized in that, The MIB of the SSB carries the first indication information through reserved bits or added bits; and / or, The PBCH payload of the SSB carries the first indication information through reserved bits or added bits.

26. The method according to any one of claims 23-25, characterized in that, The SIB1 request message is UL-WUS, including any of the following: PRACH signal; Random preamble; The root sequence of a random preamble; The first message Msg1 during the random access process.

27. The method according to any one of claims 22-26, characterized in that, The first configuration information includes at least one of the following: The first resource corresponding to the SIB1 request message includes the time-domain resource and / or frequency-domain resource corresponding to the SIB1 request message. The signal format corresponding to the SIB1 request message; The preamble or root sequence index corresponding to the SIB1 request message, or the cyclic shift corresponding to the preamble generated by the root sequence index; The RO frequency domain reuse number corresponding to the SIB1 request message; The second resource corresponding to the control information of SIB1 includes the time-domain resource and / or frequency-domain resource corresponding to the control information of SIB1. The third resource corresponding to the SIB1 response message of the SIB1 request message includes time-domain resources and / or frequency-domain resources corresponding to the control information of the SIB1 response message. The window length corresponding to the SIB1 response message of the SIB1 request message; The power ramp-up step size of the SIB1 request message is sent again; The transmission period or transmission pattern information of the first PDCCH; The mapping relationship between the SSB and the RO.

28. The method according to claim 27, characterized in that, The first configuration information is also used to indicate a first resource, and the method further includes: Receive the SIB1 request message sent by the UE in the first resource.

29. The method according to claim 28, characterized in that, The SIB1 request message is a PRACH signal, and the second resource includes at least one of the following: The system frame where the RO corresponding to the SIB1 request message is located; The subframe number where the RO is located within a system frame containing the RO; The number of time slots containing the RO within a subframe; The start symbol of the RO within a time slot containing the RO; The number of ROs within a time slot containing the ROs; The frequency domain start position is determined based on any one of the BWP, the initial BWP, or the UL BWP, and an offset value.

30. The method according to claim 28 or 29, characterized in that, The signal format corresponding to the SIB1 request message is a RACH-supported format.

31. The method according to any one of claims 28-30, characterized in that, The control information of SIB1 is the second PDCCH of SIB1, and the second resource corresponding to the control information of SIB1 includes the CORESET and / or SS corresponding to the second PDCCH of SIB1.

32. The method according to any one of claims 28-31, characterized in that, The SIB1 response message is a RAR, and the third resource corresponding to the SIB1 response message includes the CORESET and / or SS corresponding to the third PDCCH of the RAR.

33. The method according to any one of claims 28-32, characterized in that, The third PDCCH reuses the CORESET and / or SS corresponding to the second PDCCH.

34. The method according to any one of claims 24-33, characterized in that, When the first configuration information is carried in the MIB and / or PBCH payload of the SSB, the first configuration information includes at least one of the following: The signal format corresponding to the SIB1 request message; The second resource.

35. The method according to claim 34, characterized in that, The SSB's MIB and / or PBCH include second indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

36. The method according to claim 34 or 35, characterized in that, The SSB's MIB and / or PBCH include third indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

37. The method according to any one of claims 24-33, characterized in that, When the first configuration information is carried in the MIB and / or PBCH payload of the SSB, and carried in the first PDCCH, or when the first configuration information is carried in the MIB and / or PBCH payload of the SBB, and carried in the first PDSCH. The MIB and / or PBCH load includes fourth indication information, which is used for the CORESET and / or SS corresponding to the first PDCCH; or, the fourth indication information is used to indicate that the first PDCCH multiplexes the CORESET and / or SS corresponding to the control information of SIB1.

38. The method according to claim 37, characterized in that, The MIB and / or PBCH payload also includes fifth indication information, which is used to indicate the transmission period of the first PDCCH and / or the transmission pattern information of the first PDCCH.

39. The method according to claim 37 or 38, characterized in that, The first PDCCH or the first PDSCH includes sixth indication information, which is used to indicate one or more of the following: the signal format corresponding to the SIB1 request message, the system frame in which the RO corresponding to the SIB1 request message is located, and the time domain location corresponding to the SIB1 request message.

40. The method according to any one of claims 37-39, characterized in that, The first PDCCH or the first PDSCH includes a seventh indication information, which is used to indicate the frequency domain start position corresponding to the SIB1 request message.

41. The method according to any one of claims 37-40, characterized in that, The first PDCCH or the first PDSCH includes an eighth indication information, which is used to indicate one or more of the following: the RO frequency domain multiplexing number corresponding to the SIB1 request message, the root sequence index used by the PRACH signal, the cyclic shift corresponding to the preamble generated by the root sequence index, the mapping relationship between the SSB and the RO, the window length corresponding to the SIB1 response message, and the power ramp-up step size for retransmitting the SIB1 request message.

42. The method according to any one of claims 37-41, characterized in that, The first PDCCH or the first PDSCH further includes ninth indication information, which is used to indicate the subcarrier spacing corresponding to the PRACH; or, The subcarrier spacing corresponding to the PRACH is indicated by the SubcarrierSpacing field in the MIB; or... The subcarrier spacing corresponding to PRACH is the default configuration value.

43. A user equipment, characterized in that, include: processor; Memory; The memory stores 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 one of claims 1 to 21.

44. 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 22 to 42.

45. 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 21 or 22 to 42.

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