System information transmission method and related apparatus

Abstract

Embodiments of the present application provide a system information transmission method and a related apparatus. In the system information transmission method, a terminal receives configuration information of a first request, the first request being used for requesting a system information block (SIB1), the configuration information being used for indicating a first message used for the first request corresponding to one or more cells, and the cells referring to cells that support an SIB1 request. On the basis of the configuration information, the terminal can obtain the first message used for the SIB1 request corresponding to one or more network energy-saving cells. Since the terminal needs to use the first message to initiate the SIB1 request, parameters required for a request message for requesting the SIB1 are explicitly sent to the terminal.

Description

System message transmission method and related devices

[0001] This application claims priority to Chinese Patent Application No. 202411644167.1, filed on November 15, 2024, entitled "Method and Apparatus for Transmitting System Messages", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and in particular to a method and related apparatus for transmitting system messages. Background Technology

[0003] Network energy efficiency is crucial for environmental sustainability and cost savings. With the widespread adoption of 5G, energy consumption will further increase with the development of 5G communication systems and future systems, necessitating the development of new solutions to improve network energy efficiency.

[0004] To address the energy waste caused by network devices periodically broadcasting SIBs, a scheme called "Request SIB1" exists. This means that when a terminal needs SIB1, it initiates a request, and the network device sends SIB1 upon receiving the request. However, the functionality of this SIB1 request scheme in determining the request parameters from the terminal is still imperfect. Summary of the Invention

[0005] This application provides a method and related apparatus for transmitting system messages, the purpose of which is to explicitly send the parameters required for sending a request message for requesting SIB1 to the terminal.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] Firstly, this application provides a method for transmitting system messages. This method can be executed by a terminal, or by a component configured in the terminal (such as a circuit, chip, or chip system), or by a logic module or software capable of implementing all or part of the terminal's functions. This application does not limit the scope of this method. The following description uses a terminal as an example.

[0008] The system message transmission method includes: a terminal receiving configuration information for a first request, the first request being used to request system message block SIB1, the configuration information being used to indicate the first message used by one or more cells corresponding to the first request, and the cell referring to a cell that supports the SIB1 request.

[0009] In the above technical solution, the cell that supports SIB1 request can be called a network energy-saving cell. The terminal receives the configuration information of SIB1 request. The configuration information indicates the first message used for SIB1 request corresponding to one or more network energy-saving cells. Based on the configuration information, the terminal can obtain the first message used for SIB1 request corresponding to one or more network energy-saving cells. Since the terminal needs to use the first message to initiate SIB1 request, the parameters required to explicitly send the request message for requesting SIB1 to the terminal are realized.

[0010] In one possible implementation, the configuration information requested in the first request includes a request for a System Message Block (SIB).

[0011] In one possible implementation, the configuration information is also used to indicate the time-frequency domain resources of SIB1. Here, the time-frequency domain resources of SIB1 may refer to the time-frequency domain resources corresponding to the PDSCH of SIB1 transmitted by the network device. Alternatively, the time-frequency domain resources of SIB1 may refer to the candidate time-frequency domain resources of the PDCCH of SIB1 transmitted by the network device, including candidate frequency domain resource information (CORESET) and time domain resource information (search space) for scheduling control information of SIB1.

[0012] In one possible implementation, the configuration information is also used to indicate the start time and window length of the SIB1's receive window.

[0013] In one possible implementation, the first message is indicated by index information, which includes the full index or the starting value of the index.

[0014] In one possible implementation, after the terminal receives the configuration information of the first request, the method further includes: the terminal sending the first request, the first request including a first message; and the terminal receiving SIB1.

[0015] In one possible implementation, the terminal sending the first request includes: the terminal sending the first request at transmission opportunity RO on the random access channel RACH.

[0016] In one possible implementation, the configuration information is also used to indicate the Random Access Channel (RACH) resource corresponding to the first request. This can be understood as: the Random Access Channel (RACH) resource corresponding to the first request.

[0017] In one possible implementation, the first message differs from the first message for the first purpose, which includes requesting random access. It can be understood that the RACH resource corresponding to the first request and the RACH resource corresponding to the first purpose can be the same or different. In the scenario where the RACH resource corresponding to the first request and the RACH resource corresponding to the first purpose are the same, the first message differs from the first message for the first purpose; in the scenario where the RACH resource corresponding to the first request and the RACH resource corresponding to the first purpose are different, the first message can be the same as the first message for the first purpose.

[0018] In one possible implementation, the terminal receives SIB1 by receiving SIB1 within a window length after the start time of the receiving window of SIB1.

[0019] In one possible implementation, before the terminal receives SIB1, the process further includes: the terminal receiving a second message, which indicates the time-frequency domain resources of SIB1.

[0020] In one possible implementation, the configuration information is also used to indicate the request cycle of SIB1, with each SIB1 request cycle including one or more SIB1 request opportunities.

[0021] In one possible implementation, the configuration information is also used to indicate the transmission cycle of SIB1.

[0022] Secondly, this application provides a method for transmitting system messages. This method can be executed by a network device, or by a component (such as a circuit, chip, or chip system) configured in the network device, or by a logic module or software capable of implementing all or part of the functions of the network device. This application does not limit the scope of this method. The following description uses a network device as an example.

[0023] The system message transmission method includes: the network device sending configuration information for a first request, the first request being used to request system message block SIB1, the configuration information being used to indicate the first message used by one or more cells corresponding to the first request, and the cell referring to a cell that supports the SIB1 request.

[0024] In this embodiment of the application, the cell that supports SIB1 request can be referred to as a network energy-saving cell. The network device sends configuration information for the SIB1 request. This configuration information indicates the first message used for the SIB1 request corresponding to one or more network energy-saving cells. When the terminal receives the configuration information, it can obtain the first message used for the SIB1 request corresponding to one or more network energy-saving cells. Since the terminal needs to use the first message to initiate the SIB1 request, the parameters required to explicitly send the request message for requesting SIB1 to the terminal are realized.

[0025] In one possible implementation, the configuration information requested in the first request includes a request for a System Message Block (SIB).

[0026] In one possible implementation, the configuration information is also used to indicate the time-frequency domain resources of SIB1.

[0027] In one possible implementation, the configuration information is also used to indicate the start time and window length of the SIB1's receive window.

[0028] In one possible implementation, the first message is indicated by index information, which includes the full index or the starting value of the index.

[0029] In one possible implementation, the method further includes: the network device receiving a first request, the first request including a first message; and the network device sending SIB1.

[0030] In one possible implementation, the configuration information is also used to indicate the Random Access Channel (RACH) resource corresponding to the first request.

[0031] In one possible implementation, the network device sends SIB1 by sending SIB1 within a window length after the start time of the SIB1 reception window.

[0032] In one possible implementation, before the network device sends SIB1, it further includes: the network device sending a second message, which is used to indicate the time-frequency domain resources of SIB1 and can also be used to indicate the transmission beam of SIB1.

[0033] In one possible implementation, the transmit beam of SIB1 includes the transmit beam of the first request.

[0034] In one possible implementation, the configuration information is also used to indicate the transmission period of SIB1, and the network device sending SIB1 includes: the network device sending SIB1 based on the transmission period of SIB1.

[0035] In one possible implementation, after the network device sends SIB1, the process further includes: the network device receiving a second request for random access, the second request including a third message; the network device sending a fourth message; and stopping sending SIB1 during the transmission cycle of SIB1.

[0036] In one possible implementation, after the network device sends SIB1 at least once, the method further includes: if the network device does not receive the first request within a predetermined time period, it stops sending SIB1 during the SIB1 transmission cycle.

[0037] In one possible implementation, the RACH resource corresponding to the second request may be the same as or different from the RACH resource corresponding to the first request.

[0038] In one possible implementation, if the RACH resource corresponding to the second request is the same as the RACH resource corresponding to the first request, the third message is different from the first message.

[0039] Thirdly, this application provides a communication device including a transceiver module. The transceiver module is used for configuration information of a first request. The first request is used to request a system message block (SIB1). The configuration information is used to indicate the first message used by one or more cells corresponding to the first request. The cell refers to a cell that supports the SIB1 request.

[0040] It should be understood that the communication device of the third aspect can be used to perform any or all of the possible implementations of the first aspect.

[0041] Fourthly, this application provides a communication device including a transceiver module, which is used to send configuration information of a first request. The first request is used to request a system message block (SIB1). The configuration information is used to indicate the first message used by one or more cells corresponding to the first request. The cell refers to a cell that supports the SIB1 request.

[0042] It should be understood that the communication device of the fourth aspect can be used to perform any or all of the possible implementations of the second aspect.

[0043] Fifthly, this application provides a communication device including a processor and a communication interface, the processor being coupled to a memory and the communication interface. In one implementation, the communication interface may be a transceiver or an input / output interface, and the communication device may be used to execute instructions or data in the memory to implement the method in any of the possible implementations of the first aspect described above.

[0044] In one possible implementation, the communication device also includes a memory.

[0045] In another possible implementation, the communication device is a chip configured in the terminal. When the communication device is a chip configured in the terminal, the communication interface can be an input / output interface.

[0046] Sixthly, this application provides a communication device including a processor and a communication interface, the processor being coupled to a memory and the communication interface. In one implementation, the communication interface may be a transceiver or an input / output interface, and the communication device may be used to execute instructions or data in the memory to implement the method in any of the possible implementations of the second aspect described above.

[0047] In one possible implementation, the communication device also includes a memory.

[0048] In another possible implementation, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface can be an input / output interface.

[0049] In a seventh aspect, this application provides a processor, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the method in any possible implementation of any aspect.

[0050] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to and transmitted by a transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as both the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0051] Eighthly, this application provides a computer program product comprising: a computer program (also referred to as code or instructions) that, when run, causes a computer to perform a method in any of the possible implementations of any of the above aspects.

[0052] Ninthly, this application provides a computer-readable storage medium storing a computer program (also referred to as code or instructions) that, when run on a computer, causes the computer to perform the method in any possible implementation of any of the above aspects.

[0053] In a tenth aspect, this application provides a chip system including one or more processors for calling and executing instructions stored in memory, causing the methods in any of the above aspects or possible implementations to be executed. The chip system may be composed of a chip or may include chips and other discrete devices. The chip system may include input circuitry or interfaces for transmitting information or data, and output circuitry or interfaces for receiving information or data.

[0054] In the eleventh aspect, this application provides a communication system, including the aforementioned terminal and network equipment.

[0055] In one possible implementation, the communication system may also include other devices that communicate with the terminal and / or network devices.

[0056] The technical effects of the solutions provided in the second to eleventh aspects can be found in the content of the first aspect. Attached Figure Description

[0057] Figure 1 shows an example of a communication scenario between a base station and a terminal.

[0058] Figure 2 is a flowchart of a system message transmission method disclosed in an embodiment of this application;

[0059] Figure 3 shows another example of a communication scenario between a base station and a terminal.

[0060] Figure 4 is a flowchart of another system message transmission method disclosed in an embodiment of this application;

[0061] Figure 5 is a structural example diagram of a communication device disclosed in an embodiment of this application;

[0062] Figure 6 is a structural example diagram of another communication device disclosed in an embodiment of this application;

[0063] Figure 7 is a structural example diagram of another communication device disclosed in an embodiment of this application. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0065] References to "one embodiment" or "some embodiments" as described 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.

[0066] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0067] The technical solutions provided in this application can be applied to communication systems, which can be second-generation (2G) communication systems, third-generation (3G) communication systems, LTE systems, fifth-generation (5G) communication systems, LTE and 5G hybrid architectures, 5G new radio (5G NR) systems, and new communication systems that will emerge in the future development of communication, etc. This application does not specifically limit these.

[0068] A communication system includes a first device and a second device. The first device can be a network-side device used to provide network communication functions; in some cases, it is also called a network device or network element. Network devices are typically base stations (including functional units of base stations, or combinations of functional units of base stations) or core network units. Core network units can be functional units within the core network, including but not limited to access and mobility management function (AMF) units or session management function (SMF) units. The second device can be a device accessing the network, typically a terminal.

[0069] In this embodiment, base station 100 can be any device with wireless transceiver capabilities, including but not limited to: evolved base stations (NodeB, eNB, or e-NodeB) in Long Term Evolution (LTE), base stations (gNodeB or gNB) or transmission receiving points / transmission reception points (TRPs) in New Radio (NR), base stations in subsequent 3GPP evolutions, access nodes in Wi-Fi systems, wireless relay nodes, wireless backhaul nodes, etc. Base stations can be: macro base stations, micro base stations, pico base stations, small cells, relay stations, or balloon stations, etc. Base stations can include one or more co-located or non-co-located transmission reception points (TRPs). Base stations can also be radio controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios. Base stations can communicate with terminal 200, or communicate with terminal 200 through relay stations. Terminal 200 can communicate with multiple base stations using different technologies. For example, the terminal can communicate with base stations that support LTE networks, base stations that support 5G networks, and can also establish dual connections with both LTE and 5G base stations.

[0070] In the embodiments of this application, the terminal 200 can be in various forms, such as a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, vehicle-mounted terminal device, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, wearable terminal device, etc. The terminal may also be referred to as terminal equipment, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, wireless communication equipment, UE agent, or UE device, etc. The terminal can also be a fixed terminal or a mobile terminal.

[0071] Network energy efficiency is crucial for environmental sustainability and cost savings. With the widespread adoption of 5G, energy consumption will further increase with the development of 5G communication systems and future systems, necessitating the development of new solutions to improve network energy efficiency.

[0072] A significant portion of the energy consumption of a communication system comes from the wireless access network. When the terminals it serves do not require access, measurement, or service transmission, network devices may periodically broadcast synchronization signals and physical broadcast channel blocks (SSBs), system information block type-1 (SIB1), etc., which leads to energy waste in the network devices.

[0073] To address the energy waste caused by the periodic broadcasting of SIBs by network devices, one implementation provides a scheme for on-demand transmission of SIB1. On-demand transmission of SIB1 means that when a terminal needs SIB1, it initiates a request, and the network device sends SIB1 upon receiving the request. In other words, the transmission of SIB1 is switched from periodic broadcasting to on-demand requesting. However, the on-demand transmission scheme for SIB1 is not yet perfect in terms of the functionality for the terminal to determine the demand parameters for initiating the request.

[0074] Based on this, embodiments of this application provide a system message transmission scheme that can explicitly send the parameters required for a request message to request SIB1 to the terminal.

[0075] To facilitate understanding, the concepts involved in this application will be explained below.

[0076] In the field of wireless communication technology, the area covered by the wireless signal of a network device is called a cell. The coverage area of ​​a base station's signal can be divided into one or more cells. A neighbor cell, also known as a neighboring cell or adjacent cell, refers to a cell that is adjacent to the current serving cell, has a physical location association, and transmits signals on the same or different frequencies. A cell and its neighboring cells may belong to the coverage area of ​​the same network device or to different network devices.

[0077] Based on whether they support the SIB1 request function, cells can be further divided into traditional cells and network-efficient cells. Traditional cells do not support SIB1 requests but support periodic SIB1 broadcasts; network-efficient cells support SIB1 requests and can also periodically broadcast SIB1 as needed. Please note that the terms "traditional cell" and "network-efficient cell" are merely illustrative.

[0078] Figure 1 shows an example of a wireless communication system.

[0079] As shown in Figure 1, the wireless communication system includes network device 100 and terminal 200. The signal coverage area of ​​network device 100 includes cell A, cell B, and cell C. Cells B and C support SIB1 requests and are classified as energy-efficient cells, while cell A does not support SIB1 requests and is classified as a traditional cell. Cells A, B, and C can be neighboring cells of each other. For example, cell A is a neighboring cell of both cell B and cell C.

[0080] In one application scenario, terminal 200 resides in a traditional cell A and communicates with network device 100. This can be referred to as terminal 200 communicating with network device 100 in cell A. Similarly, terminal 200 resides in a network energy-saving cell B and communicates with network device 100. This can be referred to as terminal 200 communicating with network device 100 in cell B.

[0081] Figure 2 illustrates the system message transmission method provided in an embodiment of this application.

[0082] As shown in Figure 2, the methods for transmitting system messages include:

[0083] S201, The neighboring cell sends the configuration information of the first request, and the corresponding terminal receives the configuration information of the first request.

[0084] The first request is used to request SIB1, and the configuration information is used to indicate the first message used for the first request corresponding to one or more cells. One or more cells are network energy-saving cells, and neighboring cells are the neighboring cells of one or more cells. Neighboring cells can be traditional cells or network energy-saving cells.

[0085] The first request is a request message from the terminal requesting SIB1. The configuration information of the first request indicates the first message, which can be used by the terminal to request SIB1. That is, when the terminal reselects or switches to a network energy-saving cell, it can request SIB1 from that network energy-saving cell based on the first message indicated by the configuration information of the first request.

[0086] In the example shown in Figure 1, neighboring cells refer to cell A, and one or more cells refer to cells B and C. The terminal camps on cell A, and cell A can send configuration information for a first request to the terminal. This configuration information indicates the first message used for the first request corresponding to cells B and C. When the terminal reselects cell B, it can request SIB1 from cell B based on the first message indicated by the configuration information of the first request.

[0087] Similarly, in the example shown in Figure 1, "neighboring cell" can refer to cell B, and "one or more cells" can refer to cell C. When the UE is camped on cell B, cell B sends configuration information for the first request to the terminal. This configuration information can be used to indicate the first message used for the first request corresponding to cell C. When the terminal reselects cell C, the terminal can request SIB1 from cell C based on the first message indicated by the configuration information of the first request.

[0088] It is understandable that a network energy-saving community can also store its own configuration information for the first request, that is, the first message used by itself to send the first request. Network devices can also broadcast their own configuration information for the first request under specific conditions.

[0089] Figure 3 shows another example of a wireless communication system.

[0090] In the example shown in Figure 3, neighboring cells refer to cell A, and one or more cells refer to cell B. The range of cell A is larger than the range of cell B. The terminal camps on cell A, and cell A can send configuration information for a first request to the terminal. This configuration information is used to indicate the first message used for the first request corresponding to cell B. When the terminal reselects cell B, the terminal can request SIB1 from cell B based on the first message indicated by the configuration information of the first request.

[0091] In some scenarios, the terminal is in cell B when it is powered on. Since cell A includes cell B, the terminal can also receive the configuration information of the first request sent by cell A, and the terminal can also complete the request for SIB1 from cell B.

[0092] In some embodiments, the configuration information requested in the first request is a system information block (SIB), wherein the configuration information requested in the first request may be a portion of the information in the SIB. It can be understood that the configuration information requested in the first request may be SIB1 or a portion of the information in SIB1, or it may be other SIB messages or a portion of the information in other SIB messages, such as SIB2, SIB3, SIB4, SIB5, etc., or it may be a newly introduced SIB message.

[0093] This can be understood as follows: The neighboring cell broadcasts the configuration information of the first request, ensuring that all terminals within the neighboring cell can receive this information. If the configuration information in the first request is another SIB message or a newly introduced SIB message, and the broadcast status of either the other SIB message or the newly introduced SIB message is set to broadcasting, or the broadcast status is set to not broadcasting, the terminal needs to execute the request for the other SIB message or the newly introduced SIB message before cell handover or reselection.

[0094] One implementation of the configuration information indicating the first message used for the first request corresponding to one or more cells is: the configuration information includes the first message used for the first request corresponding to one or more cells.

[0095] In some embodiments, the first message used for the first request corresponding to multiple cells can be: one first message used for the first request corresponding to one cell, and the first message corresponding to each cell is not the same. In this way, the terminal requests SIB1 from the cell based on the first message corresponding to that cell. Of course, the first messages corresponding to some cells can also be the same, which is not limited. Alternatively, the first request corresponding to multiple cells can use the same first message. In this way, the terminal can request SIB1 from multiple cells based on the same first message.

[0096] It can be understood that one or more cells are indicated by the cell identifier, that is: the configuration information indicates the first message used by the first request corresponding to the identifier of one or more cells.

[0097] In some embodiments, the cell identifier may refer to the Physical Cell ID (PCI). In some scenarios, multiple cells may use the same PCI. To avoid the problem that the PCI cannot uniquely identify the cell, the cell identifier may also include the PCI and the cell's frequency information. The cell frequency information refers to the NR Absolute Radio Frequency Channel Number NR-ARFCN, which can be understood as: NR-ARFCN is a Global Synchronization Channel Number GSCN.

[0098] In some embodiments, the first message is indicated by index information of the first message, which includes a complete index or a starting value of the index. Based on this, the configuration information used to indicate the first message used by a first request corresponding to one or more cells can be understood as: the configuration information used to indicate the index information of the first message used by a first request corresponding to one or more cells. In some embodiments, the first message may be a preamble sequence; thus, the index information may refer to the preamble sequence or the starting value of the preamble sequence.

[0099] To clarify the channel resources corresponding to the first request to the terminal, in some embodiments, the configuration information is also used to indicate the random access channel (RACH) resource corresponding to the first request, which can be understood as a time-frequency domain resource. Based on this, the terminal can send a first message to the network energy-saving cell at the corresponding position of the time-frequency domain resource of the RACH to request SIB1. The RACH resource corresponding to the first request can be dedicated to requesting SIB1 or it can be a public resource.

[0100] In some embodiments, the configuration information indicates the RACH resource corresponding to the first request in such a way that the configuration information includes the RACH resource corresponding to the first request.

[0101] In some embodiments, the RACH resource corresponding to the first request indicated by the configuration information may be one RACH resource per cell, multiple cells may correspond to different RACH resources, or only partially the same RACH resource, or multiple cells may correspond to the same RACH resource.

[0102] It should be noted that the first message used by the terminal to send the first request may be the same message used by the terminal to perform other functions. For example, if the first message is a preamble sequence, the preamble sequence used by the terminal to perform the random access procedure may be the same as the preamble sequence used to send the first request. To avoid network devices being unable to distinguish the first message from the first message used by other functions (which may be referred to as the first purpose), the first message may be different from the first message used by other functions.

[0103] In scenarios where the RACH resource corresponding to the first request is dedicated to requesting SIB1, the network device can use the RACH resource to distinguish the first message from the first message used by other functions. Therefore, the first message can be the same as the first message used by other functions. Details can be found in the following embodiments, which will not be elaborated upon here.

[0104] S202. The terminal sends a first request, and the corresponding network energy-saving cell receives the first request, which includes a first message.

[0105] In scenarios such as cell selection and cell reselection, the network energy-saving cell serves as the best cell for the terminal to stay. Since the network energy-saving cell does not periodically broadcast SIB1, the terminal can send a first request to the network energy-saving cell to request SIB1.

[0106] Based on the foregoing, it is determined that: the configuration information of the first request indicates the RACH resource corresponding to the first request, and the terminal sends the first request to the network energy-saving cell based on the RACH resource corresponding to the first request.

[0107] It is understandable that when the RACH resource corresponding to the first request corresponds one-to-one with the cell, the terminal first determines the RACH resource corresponding to the first request of the cell based on the configuration information, and then sends the first request to the network energy-saving cell based on the RACH resource corresponding to the first request of the cell.

[0108] RACH resources can indicate the random access channel occasion (RO) of RACH transmission. Therefore, the terminal sends the first request based on the RACH resource corresponding to the first request, indicating that the terminal sends the first request at the RO. The first request includes the first message.

[0109] In some embodiments, where the configuration information indicates the first message as a complete index of the configuration information indicates the first message, the terminal may send a first request in one beam direction, the first request including the first message.

[0110] In other embodiments, when the configuration information indicates that the first message is the starting value of the index of the first message indicated by the configuration information, the terminal can send a first request in multiple beam directions. The first request includes a first message, and the first message in the first request sent in each beam direction is different. That is, the terminal sends multiple first requests including a first message. The number of first requests sent by the terminal can be determined according to the number of ROs that can be mapped to SSBs, and the starting value of the first message included in each first request is the starting value of the index of the first message indicated by the configuration information.

[0111] It can be understood that: one RO can be mapped to one or more SSBs. When one RO is mapped to one SSB, the terminal sends a first request including a first message in one beam direction; when one RO is mapped to n SSBs, the terminal sends a total of n first requests including different first messages in different beam directions.

[0112] The mapping relationship between SSB and RO is defined by the SSB-per-rach-occasion parameter. In some embodiments, the configuration information of the first request may also include the mapping relationship between SSB and RO.

[0113] It should be noted that the terminal can periodically send the first request, that is, periodically request SIB1.

[0114] To clarify the period of the first request to the terminal, in some embodiments, the configuration information of the first request sent by the neighboring cell can also be used to indicate the request period of SIB1, and each SIB1 request period includes one or more SIB1 request opportunities. Thus, the terminal can send the first request at each SIB1 request opportunity in each SIB1 request period.

[0115] The configuration information can indicate the request cycle of SIB1 in a way that includes the request cycle of SIB1.

[0116] The SIB1 request period indicated by the configuration information can be one SIB1 request period for one cell, multiple cells can have different SIB1 request periods, or only partially the same, or multiple cells can have the same SIB1 request period.

[0117] S203, the network energy-saving cell sends a second message, and the corresponding terminal receives the second message.

[0118] The second message can be understood as a response message to the first request.

[0119] In some embodiments, the second message can be used to indicate the time-frequency domain resources of SIB1. The time-frequency domain resources of SIB1 can be associated with a one-to-one or one-to-many network energy-saving cell.

[0120] After receiving the first message, the network energy-saving cell can send a second message to the terminal. The second message can be used to indicate the time-frequency domain resources of SIB1, so as to clarify the time-frequency domain resources of SIB1 to the terminal.

[0121] The time-frequency domain resources of SIB1 can refer to the time-frequency domain resources corresponding to the physical downlink shared channel (PDSCH) transmitted by the network energy-saving cell for SIB1. Alternatively, the time-frequency domain resources of SIB1 can refer to the candidate time-frequency domain resources of the physical downlink control channel (PDCCH) transmitted by the network energy-saving cell for SIB1, including the candidate frequency domain resource information (CORESET) and time domain resource information (Search space) of the control information for scheduling SIB1 (which can refer to the time-frequency domain resources corresponding to the PDSCH for transmitting SIB1).

[0122] In some embodiments, the second message can be used to indicate the transmission beam of SIB1. Based on this, the network energy-saving cell determines, according to the second message, whether to transmit SIB1 in the direction of the first requested beam, or to transmit SIB1 on a specified beam, or to transmit SIB1 in all beam directions.

[0123] In some embodiments, step S203 may be omitted. After receiving the first message, the network energy-saving cell directly executes the following step S204.

[0124] S204. The network energy-saving cell sends SIB1, and the corresponding terminal receives SIB1.

[0125] In response to the first request, the network energy-saving cell sends SIB1. In some embodiments, the network energy-saving cell may broadcast SIB1. It is understood that upon receiving the first request, the network energy-saving cell may resume sending a complete SSB and resume broadcasting SIB1. Here, a complete SSB means that the SSB contains valid SIB1 control information, and valid means that SIB1 can be received through the SIB1 control information in the SSB.

[0126] In some embodiments, the transmission beam of SIB1 includes the transmission beam of the first request. That is, after receiving the first request, the network energy-saving cell transmits SIB1 only on the beam of the first request, or transmits SIB1 on multiple beams, including the transmission beam of the first request and beams in other directions. It can be understood that if the network energy-saving cell transmits SIB1 on multiple beams, terminals in other beam directions can also receive SIB1 even if they did not send the first request, thus saving power consumption of the network equipment.

[0127] In some embodiments, the configuration information of the first request can be used to indicate the transmission beam of SIB1. Based on this, the network energy-saving cell determines, according to the configuration information, whether to transmit SIB1 in the direction of the first requested beam, transmit SIB1 on a specified beam, or transmit SIB1 in all beam directions.

[0128] In this embodiment of the application, the neighboring cell sends configuration information for the SIB1 request. This configuration information indicates the first message used for the SIB1 request corresponding to one or more network energy-saving cells. When the terminal receives this configuration information, it can obtain the first message used for the SIB1 request corresponding to one or more network energy-saving cells. Since the terminal needs to use the first message to initiate the SIB1 request, the parameters required to explicitly send the request message for requesting SIB1 to the terminal are realized.

[0129] The energy-saving cell can transmit SIB1 in two ways: First, the energy-saving cell determines the time-frequency domain resources for transmitting SIB1 on the PDSCH and transmits SIB1 at the corresponding position. Second, the energy-saving cell determines the candidate frequency domain resources and time domain resources of the PDCCH corresponding to the PDSCH for transmitting SIB1, and transmits the PDSCH containing SIB1 on the time-frequency domain resources of the PDSCH indicated by the candidate frequency domain resources and time domain resources of the PDCCH. This can be understood as: the terminal blindly detects the PDCCH and decodes it to obtain the time-frequency domain resources of the PDSCH; after receiving the PDSCH, it decodes it to obtain SIB1.

[0130] It should be noted that step S203 provides a way to explicitly specify the time-frequency domain resources of SIB1 to the terminal. Of course, besides the implementation of step S203, other ways to specify the time-frequency domain resources of SIB1 to the terminal can also be:

[0131] The configuration information in the first request sent by the neighboring cell is used to indicate the time-frequency domain resources of SIB1. The definition of the time-frequency domain resources of SIB1 is as described above. The configuration information indicates the time-frequency domain resources of SIB1 by including the time-frequency domain resources of SIB1 in the configuration information.

[0132] The time-frequency domain resources of SIB1 indicated by the configuration information can be one SIB1 time-frequency domain resource for one cell, multiple cells corresponding to different SIB1 time-frequency domain resources, or only partially the same time-frequency domain resources, or multiple cells corresponding to the same SIB1 time-frequency domain resource.

[0133] It should also be noted that the network energy-saving cell can also send SIB1 based on the time-frequency domain resources of PDSCH or send PDSCH containing SIB1 on the time-frequency domain resources of PDSCH indicated by the candidate frequency domain resources and time domain resources of PDCCH within a specific time window. Thus, to clearly indicate the reception time (i.e., the specific time window) of configuration information SIB1 to the terminal, in some embodiments, the configuration information of the first request sent by the neighboring cell is also used to indicate the start time and window length of the reception window for SIB1. The start time of the reception window is the position of the RO end symbol when the terminal sends the first request, or the position of the first CORESET start symbol after the terminal receives the second message, or the position of the first CORESET start symbol after the reception window for the control information corresponding to the second message.

[0134] The configuration information can indicate the start time and window length of the SIB1's receiving window in the following ways: The configuration information includes the start time and window length of the SIB1's receiving window.

[0135] The start time and window length of the SIB1 reception window indicated by the configuration information can be: the start time and window length of the SIB1 reception window corresponding to one cell, the start time and window length of the SIB1 reception windows corresponding to multiple cells are different, or only partially the same, or multiple cells can correspond to the start time and window length of the same SIB1 reception window.

[0136] In scenarios where the terminal can obtain the time-frequency domain resources of SIB1 and the start time and window length of the SIB1 receive window, after the network device sends SIB1, the terminal listens to SIB1 within the window length after the start time of the SIB1 receive window, that is, listens to the PDCCH corresponding to the PDSCH that schedules SIB1, and receives SIB1 through the scheduling information of PDCCH, or receives SIB1.

[0137] It is understandable that network devices send SIB1 within the window length after the start time of the SIB1 receive window.

[0138] It should be noted that the transmission of SIB1 by the network energy-saving cell may include: the network energy-saving cell transmitting SIB1 a fixed number of times (1 or more) and then stopping, continuously transmitting SIB1, or periodically transmitting SIB1, and the number of periods for transmitting SIB1 can be configured.

[0139] To clarify the SIB1 transmission period for the terminal, in some embodiments, the configuration information of the first request sent by the neighboring cell is also used to indicate the SIB1 transmission period. The network-saving cell only sends SIB1 during the transmission period; if the transmission period is exceeded, the network-saving cell does not send SIB1.

[0140] The configuration information can indicate the transmission cycle of SIB1 in the following way: the configuration information includes the number of SIB1 transmission cycles, N. That is, if the network energy-saving cell does not receive a new first request after transmitting N cycles of SIB1, it can stop sending SIB1. The N cycles can be continuous or have time intervals.

[0141] The SIB1 transmission period indicated by the configuration information can be one SIB1 transmission period corresponding to one cell, multiple cells corresponding to different SIB1 transmission periods, or only partially the same, or multiple cells corresponding to the same SIB1 transmission period.

[0142] It should also be noted that, in some embodiments, the configuration information of the first request sent by the neighboring cell can also be used to indicate the power ramp-up step size. The power ramp-up step size is the amount of power increased when the terminal retransmits the first request once in the same beam direction, referred to as the power increase value. The configuration information indicates the power ramp-up step size by including the power ramp-up step size in the configuration information.

[0143] The power ramp-up step size indicated by the configuration information can be one power ramp-up step size for one cell, different power ramp-up step sizes for multiple cells, or only partially the same power ramp-up step size for multiple cells, or the same power ramp-up step size for multiple cells.

[0144] It is understandable that after the terminal executes step S202, if the terminal does not receive the second message or does not receive SIB1, the terminal retransmits the first request once in the same beam direction, and the difference between the power of the first request transmitted this time and the power of the first request transmitted in the previous time is the power ramp-up step size, so as to strengthen the transmission of the first request.

[0145] Figure 4 illustrates another method for transmitting system messages provided in an embodiment of this application.

[0146] As shown in Figure 4, the methods for transmitting system messages include:

[0147] S401, The neighboring cell sends the configuration information of the first request, and the corresponding terminal receives the configuration information of the first request.

[0148] The first request is used to request SIB1, and the configuration information is used to indicate the first message used for the first request corresponding to one or more cells. One or more cells are network energy-saving cells, and neighboring cells are the neighboring cells of one or more cells. Neighboring cells can be traditional cells or network energy-saving cells.

[0149] For details on the implementation of step S401, please refer to the content of step S201 above, which will not be repeated here.

[0150] S402. The terminal sends a first request, and the corresponding network energy-saving cell receives the first request, which includes a first message.

[0151] For details on the implementation of step S402, please refer to the content of step S202 above, which will not be repeated here.

[0152] S403, the network energy-saving cell sends a second message, and the corresponding terminal receives the second message.

[0153] For details on the implementation of step S403, please refer to the content of step S203 above, which will not be repeated here.

[0154] S404, the network energy-saving cell sends SIB1, and the corresponding terminal receives SIB1.

[0155] For details on the implementation of step S404, please refer to the content of step S204 above, which will not be repeated here.

[0156] S405, the terminal sends a third message, and the corresponding network energy-saving cell receives the third message.

[0157] After receiving SIB1, the terminal can perform various functions based on SIB1.

[0158] It is understood that, for initial random access, SIB1 may contain parameters related to the random access process. Based on this, the terminal can perform random access based on SIB1. Random access includes four-step random access and two-step random access. This embodiment uses the first two steps of four-step random access as an example to introduce the interaction between the terminal and the network energy-saving cell, but this does not constitute a limitation on the random access procedure. In this example, the third message refers to Msg1 in four-step random access, i.e., the preamble series.

[0159] In some embodiments, the terminal sends the third message by sending a second request, the second request including the third message, the second request referring to a random access request message.

[0160] It can be understood that the terminal sends a second request based on the RACH resource corresponding to the second request, which can be understood as a time-frequency domain resource. Based on this, the terminal can send a third message to the network energy-saving cell at the corresponding position of the time-frequency domain resource of the RACH to request random access.

[0161] The RACH resources used by the terminal to send the second request (i.e., the RACH resources corresponding to the second request) may be the same as or different from the RACH resources used to send the first request (i.e., the RACH resources corresponding to the first request).

[0162] If the RACH resource corresponding to the second request is the same as that corresponding to the first request, the third message may be different from the first message. In this way, the energy-saving cell can determine whether the terminal is requesting SIB1 or random access based on the different messages. Alternatively, if the RACH resource corresponding to the second request is different from that corresponding to the first request, the third message may be the same as the first message. In this way, the energy-saving cell can determine whether the terminal is requesting SIB1 or random access based on the different RACH resources.

[0163] In some embodiments, the configuration information of the first request sent by the neighboring cell can be used to indicate the RACH resource corresponding to the first request. The SIB1 sent by the network energy-saving cell may include the RACH resource corresponding to the second request. The terminal can determine whether the two are the same by comparing the RACH resource corresponding to the first request and the RACH resource corresponding to the second request.

[0164] S406, the network energy-saving cell sends the fourth message, and the corresponding terminal receives the fourth message.

[0165] The network energy-saving cell receives the third message and sends the fourth message. In the example above, the fourth message is Msg2, which stands for Random Access Response (RAR).

[0166] In some embodiments, after receiving the third message, the network energy-saving cell may stop sending SIB1, thus avoiding increased power consumption caused by continuous SIB1 transmission. Once the network energy-saving cell receives the first request again, it resumes sending SIB1.

[0167] In some embodiments, if the network energy-saving cell receives a first request and transmits SIB1 multiple times within the SIB1 receiving window, the network energy-saving cell may terminate the transmission of SIB1 early upon receiving a second request including a third message, even if the deadline of the SIB1 receiving window has not been reached.

[0168] In other embodiments, the network energy-saving cell continuously or periodically transmits SIB1. After transmitting SIB1 at least once, if the network energy-saving cell does not receive a first request within a predetermined time period or there is no terminal requiring service within the network energy-saving cell, it stops transmitting SIB1 during the SIB1 transmission cycle. "No terminal requiring service within the network energy-saving cell" means that there are no UEs within the coverage area of ​​the network energy-saving cell that have uplink or downlink data interaction with the network equipment of the network energy-saving cell. In other words, the network energy-saving cell monitors whether there is a first request or a terminal having uplink or downlink data interaction with the network equipment of the network energy-saving cell within a predetermined time period to determine whether there is a terminal with service requirements. If there is no first request within the predetermined time period, it indicates that there is no terminal with service requirements, and to conserve power, the network energy-saving cell may stop transmitting SIB1.

[0169] If the number of cycles in which the network energy-saving cell sends SIB1 does not reach the agreed number, the network energy-saving cell will also stop periodically sending SIB1.

[0170] In some embodiments, the configuration information of the first request sent by the neighboring cell may also instruct the network-energy-saving cell to stop SIB1 transmission.

[0171] In this embodiment of the application, the configuration information of the first request can indicate the RACH resource corresponding to the first request. The terminal can determine the first message used to request SIB1 and the third message to request random access based on the comparison result of the RACH resource corresponding to the first request and the RACH resource corresponding to the second request. This enables the terminal to request SIB1 on demand and also ensures the smooth execution of the random access procedure.

[0172] Figure 5 illustrates an example of the composition of a communication device provided in an embodiment of this application. This communication device can be a terminal, including but not limited to mobile phones, smart wearable devices (such as smartwatches), and other electronic devices. Taking a mobile phone as an example, the communication device may include a processor 110, internal memory 120, display screen 130, antenna 1, antenna 2, mobile communication module 140, and wireless communication module 150, etc. It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the communication device.

[0173] Processor 110 may include one or more processing units, such as an application processor (AP), a modem processor, and / or a baseband processor.

[0174] Internal memory 120 can be used to store executable program code, including instructions. Processor 110 can execute the instructions in internal memory 120 to perform terminal processing actions in the system message transmission method.

[0175] The wireless communication function of the electronic device can be realized through antenna 1, antenna 2, mobile communication module 140, wireless communication module 150, modem processor and baseband processor, etc.

[0176] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals.

[0177] The mobile communication module 140 can provide solutions for wireless communication applications including 2G / 3G / 4G / 5G in electronic devices. The mobile communication module 140 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 140 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 140 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1.

[0178] The wireless communication module 150 can provide solutions for wireless communication applications in electronic devices, including wireless local area networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (IR) technologies. The wireless communication module 150 receives electromagnetic waves via antenna 2, modulates and filters the electromagnetic wave signals, and sends the processed signal to processor 110. The wireless communication module 150 can also receive signals to be transmitted from processor 110, modulate and amplify them, and then convert them into electromagnetic waves for radiation via antenna 2.

[0179] In addition, an operating system runs on top of the aforementioned components. Examples include iOS, Android, and Windows. Applications can be installed and run on this operating system.

[0180] Figure 6 illustrates another example of the composition of a communication device provided in an embodiment of this application. This communication device can be a network device, such as a satellite. Figure 6 shows a simplified schematic diagram of a network device. The network device includes: at least one processor 210, at least one memory 220, at least one transceiver 230, at least one network interface 240, and one or more antennas 250. The processor 210, memory 220, transceiver 230, and network interface 240 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited in this respect. The antenna 250 is connected to the transceiver 230. The network interface 240 is used to enable a network element to connect to other communication devices through a communication link. For example, the network interface 240 may include a network interface between a network element and network elements in the core network, such as an S1 interface. The network interface may also include a network interface between a network element and other network elements, such as an X2 or Xn interface.

[0181] The processor 210 shown in Figure 6 can specifically perform the network device processing actions in the above-mentioned system message transmission method, the memory 220 can perform the storage actions in the above-mentioned system message transmission method, the transceiver 230 and the antenna 250 can perform the sending and receiving actions in the above-mentioned system message transmission method, and the network interface 240 can perform the interaction actions between the network device and the terminal in the above-mentioned method.

[0182] Processor 210 may include, but is not limited to, at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller unit (MCU), or an artificial intelligence processor, etc., which are various computing devices that run software. Each computing device may include one or more cores for executing software instructions to perform calculations or processing. The processor may be a standalone semiconductor chip or integrated with other circuits into a single semiconductor chip. For example, it may form a System-on-a-Chip (SoC) with other circuits (such as encoding / decoding circuits, hardware acceleration circuits, or various bus and interface circuits), or it may be integrated as a built-in processor within an ASIC. The ASIC with the integrated processor may be packaged separately or together with other circuits. In addition to the cores for executing software instructions to perform calculations or processing, the processor may further include necessary hardware accelerators, such as field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), or logic circuits that implement dedicated logic operations.

[0183] The memory 220 may include at least one of the following types, but is not limited to: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or electrically erasable programmable-only memory (EEPROM).

[0184] Transceiver 230 can be used to support the reception or transmission of radio frequency (RF) signals between network elements and other devices. Transceiver 230 can be connected to antenna 250. Transceiver 230 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 250 can receive RF signals. The receiver Rx of transceiver 230 is used to receive RF signals from the antennas, convert the RF signals into digital baseband signals or digital intermediate frequency (IF) signals, and provide the digital baseband signals or IF signals to processor 210 so that processor 210 can perform further processing on the digital baseband signals or IF signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 230 is also used to receive modulated digital baseband signals or IF signals from processor 210, convert the modulated digital baseband signals or IF signals into RF signals, and transmit the RF signals through one or more antennas 250. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of the downmixing and IF processing is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband or digital IF signal to obtain a radio frequency signal. The order of the upmixing and IF processing is also adjustable. Digital baseband signals and digital IF signals can be collectively referred to as digital signals.

[0185] It should be understood that Figure 6 is merely an example and not a limitation, and the network devices described above, including processors, memory, and transceivers, may not depend on the structure shown in Figure 6.

[0186] This application also provides a communication device.

[0187] As shown in Figure 7, the communication device 300 can correspondingly implement the functions or steps implemented by the network device in the above-described method embodiments. The communication device 300 includes a processing module 301 and a transceiver module 302. In some embodiments, the communication device 300 may not include the processing module 301. In some embodiments, the communication device may also include a storage module 303, which can be used to store instructions (code or program) and / or data. The processing module 301 and the transceiver module 302 can be coupled to the storage module 303. For example, the processing module 301 can read instructions (code or program) and / or data from the storage module to implement the corresponding method. The above modules can be set independently, or partially or completely integrated.

[0188] In some embodiments, the transceiver module 302 is used to send configuration information of the first request. The specific implementation process of the transceiver module 302 can be found in the embodiments shown in Figures 2 to 4, and will not be repeated here.

[0189] In some embodiments, the transceiver module 302 is used to send a second message. The specific implementation process of the transceiver module 302 can be found in the embodiments shown in Figures 2 to 4, and will not be repeated here.

[0190] In some embodiments, the transceiver module 302 is used to send SIB1. The specific implementation process of the transceiver module 302 can be found in the embodiments of Figures 2 to 4, and will not be repeated here.

[0191] In some embodiments, the transceiver module 302 is used to send a fourth message, and the processing module 301 is used to control the cessation of sending SIB1. The specific implementation process of the transceiver module 302 and the processing module 301 can be found in the embodiment of Figure 4, and will not be repeated here.

[0192] The communication device 300 shown in Figure 7 can also correspondingly implement the functions or steps implemented by the terminal in the above-described method embodiments. The communication device 300 includes a processing module 301 and a transceiver module 302. In some embodiments, the communication device 300 may not include the processing module 301. In some embodiments, the communication device may also include a storage module 303, which can be used to store instructions (code or program) and / or data. The processing module 301 and the transceiver module 302 can be coupled to the storage module 303. For example, the processing module 301 can read instructions (code or program) and / or data from the storage module to implement the corresponding method. The above modules can be set independently, or partially or completely integrated.

[0193] In some embodiments, the transceiver module 302 is used to receive configuration information from the first request. The specific implementation process of the transceiver module 302 can be found in the embodiments shown in Figures 2 to 4, and will not be repeated here.

[0194] In some embodiments, the transceiver module 302 is used to send a first request and receive SIB1. The specific implementation process of the transceiver module 302 can be found in the embodiments shown in Figures 2 to 4, and will not be repeated here.

[0195] In some embodiments, the transceiver module 302 is used to receive a second message. The specific implementation process of the transceiver module 302 can be found in the embodiments shown in Figures 2 to 4, and will not be repeated here.

[0196] In some embodiments, the transceiver module 302 is used to send a third message and receive a fourth message. The specific implementation process of the transceiver module 302 can be found in the embodiment described in Figure 4, and will not be repeated here.

[0197] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the explanations and beneficial effects of the relevant content in any of the communication devices provided above can be referred to the corresponding method embodiments provided above, and will not be repeated here.

[0198] This application also provides a processor, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is used to receive signals through the input circuit and transmit signals through the output circuit, causing the processor to execute the system message transmission method described in the above embodiments.

[0199] In specific implementation, the processor can be one or more chips, the input circuit can be input pins, the output circuit can be output pins, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits. The input signal received by the input circuit can be received and input by, for example, but not limited to, a receiver, and the signal output by the output circuit can be output to, for example, but not limited to, a transmitter and transmitted by the transmitter. Furthermore, the input circuit and the output circuit can be the same circuit, which is used as the input circuit and the output circuit at different times. This application does not limit the specific implementation of the processor and various circuits.

[0200] This application also provides a chip system including one or more processors for calling and executing instructions stored in memory, thereby executing the system message transmission method described in the above embodiments. The chip system may be composed of chips or may include chips and other discrete devices. The chip system may include input circuitry or interfaces for transmitting information or data, and output circuitry or interfaces for receiving information or data.

[0201] This application also provides a computer-readable storage medium storing instructions that, when executed on one or more computing devices, cause the one or more computing devices to perform the system message transmission method described in the above embodiments.

[0202] Computer-readable storage media can be non-transitory computer-readable storage media, such as read-only memory (ROM), random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

[0203] This application also provides a computer program product. When executed by one or more computing devices, the computer program product allows the computing devices to execute any of the aforementioned system message transmission methods. The computer program product can be a software installation package. When any of the aforementioned system message transmission methods is required, the computer program product can be downloaded and executed on a computer.

[0204] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method of transmitting system messages, characterized by, include: The terminal receives configuration information for a first request, the first request being used to request System Message Block (SIB1), the configuration information being used to indicate the first message used by the first request for one or more cells, the cell referring to a cell that supports the SIB1 request.

2. The method of claim 1, wherein, The configuration information for the first request includes a request for a System Message Block (SIB).

3. The method according to claim 1 or 2, characterized in that, The configuration information is also used to indicate the time-frequency domain resources of SIB1.

4. The method according to any one of claims 1 to 3, characterized in that, The configuration information is also used to indicate the start time and window length of the receiving window of the SIB1.

5. The method according to any one of claims 1 to 4, characterized in that, The first message is indicated by the index information of the first message, which includes the complete index or the starting value of the index.

6. The method according to any one of claims 1 to 5, characterized in that, After the terminal receives the configuration information from the first request, the method further includes: The terminal sends the first request, which includes the first message; The terminal receives SIB1.

7. The method of claim 6, wherein, The terminal sending the first request includes: The terminal sends the first request during a transmission opportunity RO on the random access channel RACH.

8. The method according to claim 6 or 7, characterized in that, The configuration information is also used to indicate the Random Access Channel (RACH) resource corresponding to the first request.

9. The method according to any one of claims 6 to 8, characterized in that, The first message is different from the first message for the first purpose, which includes requesting random access.

10. The method according to any one of claims 6 to 9, characterized in that, The terminal receives the SIB1, including: The terminal receives SIB1 within the window length following the start time of the receiving window of SIB1.

11. The method according to any one of claims 6 to 10, characterized in that, Before the terminal receives the SIB1, it also includes: The terminal receives a second message, which is used to indicate the time-frequency domain resources of SIB1.

12. The method according to any one of claims 6 to 11, characterized in that, The configuration information is also used to indicate the request cycle of SIB1, and each request cycle of SIB1 includes one or more SIB1 request opportunities.

13. The method according to any one of claims 6 to 11, characterized in that, The configuration information is also used to indicate the transmission period of SIB1.

14. A method of transmitting system information, characterized by, include: The network device sends configuration information for a first request, the first request being used to request System Message Block (SIB1), the configuration information being used to indicate the first message used by the first request for one or more cells, the cell referring to a cell that supports the SIB1 request.

15. The method of claim 14, wherein, The configuration information for the first request includes a request for a System Message Block (SIB).

16. The method according to claim 14 or 15, characterized in that, The configuration information is also used to indicate the time-frequency domain resources of SIB1.

17. The method of any one of claims 14 to 16, wherein, The configuration information is also used to indicate the start time and window length of the receiving window of the SIB1.

18. The method according to any one of claims 14 to 17, characterized in that, The first message is indicated by the index information of the first message, which includes the complete index or the starting value of the index.

19. The method according to any one of claims 14 to 18, characterized in that, Also includes: The network device receives the first request, the first request including the first message; The network device sends SIB1.

20. The method of claim 19, wherein, The configuration information is also used to indicate the Random Access Channel (RACH) resource corresponding to the first request.

21. The method of any one of claims 19-20, wherein, The network device sends the SIB1, including: The network device transmits SIB1 within the window length following the start time of the SIB1 reception window.

22. The method of any one of claims 19-21, wherein, Before the network device sends SIB1, it also includes: The network device sends a second message, which is used to indicate the time-frequency domain resources of SIB1.

23. The method of any one of claims 19-22, wherein, The transmission beam of SIB1 includes the transmission beam of the first request.

24. The method of any one of claims 19-23, wherein, The configuration information is also used to indicate the transmission period of SIB1, and the network device sending the SIB1 includes: the network device sending the SIB1 based on the transmission period of SIB1.

25. The method of claim 24, wherein, After the network device sends SIB1, it also includes: The network device receives a second request, which is used to request random access, and the second request includes a third message; The network device sends a fourth message and stops sending SIB1 during the transmission cycle of SIB1.

26. The method of claim 25, wherein, After the network device sends SIB1 at least once, it further includes: If the network device does not receive the first request within a predetermined time period, it shall stop transmitting SIB1 during the transmission cycle of SIB1.

27. The method of claim 25 or 26, wherein, The RACH resource corresponding to the second request may be the same as or different from the RACH resource corresponding to the first request.

28. The method of claim 25 or 26, wherein, If the RACH resource corresponding to the second request is the same as the RACH resource corresponding to the first request, the third message is different from the first message.

29. A communications device, characterized by The communication device includes a processing unit and a transceiver unit, and is used to perform the method as described in any one of claims 1 to 28.

30. A communications device, characterized by include: Memory, used to store computer instructions; A processor for executing a computer program or computer instructions stored in the memory, causing the communication device to perform the method as described in any one of claims 1 to 28.

31. A computer storage medium for storing a computer program, which, when executed, performs the method according to any one of claims 1 to 28.

32. A computer program product, characterised in that, It stores instructions that, when the computer program product is run on the electronic device, cause the electronic device to perform the method as described in any one of claims 1 to 28.

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