Transmission method, device and system of sib

Abstract

Embodiments of the present application provide a transmission method, device and system of SIB, and relate to the technical field of communication. The method comprises: a network device sends first information to a terminal device, the first information is used for indicating transmission information of a first SIB, the first SIB is a SIB based on request; the terminal device receives the first SIB according to the first information. By sending the first information, the terminal device can receive the first SIB in time, the number of times of sending the first SIB by the network device is reduced, and the energy consumption of the network device is reduced.

Description

SIB transmission methods, equipment and systems

[0001] This application claims priority to Chinese Patent Application No. 202410579927.9, filed on May 10, 2024, entitled "Transmission Method, Apparatus and System for SIB", 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 method, device and system for transmitting SIBs. Background Technology

[0003] In communication systems, system information (SI) provides terminal devices with the necessary information to link with network devices. SI is divided into several blocks, including the master information block (MIB) and the system information block (SIB). Among these SIBs, SIB1 includes cell selection information, cell configuration information, and scheduling or change information from other SIBs.

[0004] In related technologies, as shown in Figure 1A, network devices periodically transmit SIB1 on multiple beams, resulting in high energy consumption. To reduce network device energy consumption, an energy-saving scheme is proposed in the network energy saving (NES) project: allowing network devices to stop periodically transmitting SIB1, and instead, when a terminal device needs to obtain SIB1, it sends an uplink request to the network device, which then transmits SIB1 after receiving the uplink request. The SIB1 in this scheme can be called on-demand (OD) SIB1. The cell that transmits SIB1 based on a terminal device's request is called an NES cell.

[0005] The above energy-saving solution achieves the goal of saving network energy consumption by reducing the transmission of SIB1; however, how the terminal device obtains the requested SIB1 after sending the uplink request information is a technical problem that urgently needs to be solved. Summary of the Invention

[0006] This application provides a method, device, and system for transmitting SIBs. By sending first information, the terminal device, after obtaining the SIB transmission information, can determine the effective transmission time of the SIB based on the SIB transmission information and complete the transmission of the SIB within the effective transmission time.

[0007] In a first aspect, embodiments of this application provide a method for transmitting an SIB, applied to a terminal device, the method comprising: receiving first information, the first information being used to indicate transmission information of a first SIB, the first SIB being a request-based SIB; and receiving the first SIB according to the first information.

[0008] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0009] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0010] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0011] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0012] In one possible implementation, receiving the first information includes: receiving a first message, wherein the first message includes the first information.

[0013] In one possible implementation, receiving the first information includes: receiving response information for an uplink request, wherein the response information includes the first information.

[0014] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0015] In one possible implementation, receiving the first information includes: receiving a first message, the first message including the second information in the first information; and receiving response information to the uplink request information, the response information including the third information in the first information.

[0016] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0017] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0018] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0019] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0020] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0021] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0022] In one possible implementation, receiving the first information includes receiving a second message, wherein the second message includes the first information.

[0023] In one possible implementation, receiving the first information includes: receiving a first message, the first message including second information from the first information; and receiving a second message, the second message including third information from the first information.

[0024] In one possible implementation, the second message includes either DCI or MAC CE.

[0025] In one possible implementation, the method further includes: sending uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 1 during the random access procedure.

[0026] In one possible implementation, receiving the first information includes receiving message 4 during the random access process, where message 4 includes the first information.

[0027] In one possible implementation, receiving the first information includes: receiving a first message, the first message including the second information in the first information; and receiving message 4 in the random access process, message 4 including the third information in the first information.

[0028] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0029] In one possible implementation, the method further includes: sending uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 3 during the random access procedure.

[0030] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0031] In one possible implementation, the first SIB includes SIB1.

[0032] Secondly, embodiments of this application provide a method for transmitting an SIB, applied to a network device. The method includes: sending first information, the first information being used to indicate the transmission information of a first SIB, the first SIB being a request-based SIB; and sending the first SIB according to the first information.

[0033] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0034] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0035] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0036] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0037] In one possible implementation, sending the first information includes sending a first message, wherein the first message includes the first information.

[0038] In one possible implementation, sending the first information includes: sending response information for the uplink request information, wherein the response information includes the first information.

[0039] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0040] In one possible implementation, sending the first information includes: sending a first message, the first message including the second information in the first information; and sending a response to the uplink request information, the response information including the third information in the first information.

[0041] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0042] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0043] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0044] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0045] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0046] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0047] In one possible implementation, sending the first information includes sending a second message, which includes the first information.

[0048] In one possible implementation, sending the first information includes: sending a first message, the first message including the second information in the first information; and sending a second message, the second message including the third information in the first information.

[0049] In one possible implementation, the second message includes either DCI or MAC CE.

[0050] In one possible implementation, the method further includes: receiving uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 1 during the random access procedure.

[0051] In one possible implementation, sending the first information includes sending message 4 during the random access process, where message 4 includes the first information.

[0052] In one possible implementation, sending the first information includes: sending a first message, the first message including the second information in the first information; and sending message 4 in the random access process, message 4 including the third information in the first information.

[0053] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0054] In one possible implementation, the method further includes: receiving uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 3 during the random access process.

[0055] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0056] In one possible implementation, the first SIB includes SIB1.

[0057] Thirdly, embodiments of this application provide an SIB transmission apparatus configured to transmit SIBs in a wireless communication system. The apparatus includes: a transceiver unit configured to receive first information, the first information being used to indicate the transmission information of a first SIB, wherein the first SIB is a request-based SIB; the transceiver unit is further configured to receive the first SIB according to the first information.

[0058] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0059] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0060] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0061] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0062] In one possible implementation, the transceiver unit is specifically used to: receive a first message, the first message including first information.

[0063] In one possible implementation, the transceiver unit is specifically used to: receive response information for uplink request information, the response information including first information.

[0064] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0065] In one possible implementation, the transceiver unit is specifically configured to: receive a first message, the first message including second information from the first information; and receive response information to an uplink request message, the response information including third information from the first information.

[0066] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0067] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0068] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0069] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0070] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0071] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0072] In one possible implementation, the transceiver unit is specifically used to: receive a second message, the second message including the first information.

[0073] In one possible implementation, the transceiver unit is specifically configured to: receive a first message, the first message including second information from the first information; and receive a second message, the second message including third information from the first information.

[0074] In one possible implementation, the second message includes either DCI or MAC CE.

[0075] In one possible implementation, the transceiver unit is also used to send uplink request information, which is used to request the transmission of the first SIB. The uplink request information is carried in message 1 during the random access process.

[0076] In one possible implementation, the transceiver unit is specifically used to: receive message 4 during the random access process, message 4 including first information.

[0077] In one possible implementation, the transceiver unit is specifically configured to: receive a first message, which includes second information from the first information; and receive message 4 from the random access process, which includes third information from the first information.

[0078] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0079] In one possible implementation, the transceiver unit is also used to send uplink request information, which is used to request the transmission of the first SIB. The uplink request information is carried in message 3 during the random access process.

[0080] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0081] In one possible implementation, the first SIB includes SIB1.

[0082] Fourthly, embodiments of this application provide a transmission apparatus for an SIB, configured to transmit an SIB in a wireless communication system. The apparatus includes: a transceiver unit for transmitting first information, the first information being used to indicate transmission information of a first SIB, the first SIB being a request-based SIB; the transceiver unit is further configured to transmit the first SIB.

[0083] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0084] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0085] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0086] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0087] In one possible implementation, the transceiver unit is specifically used to: send a first message, the first message including first information.

[0088] In one possible implementation, the transceiver unit is specifically used to: send response information to the uplink request information, the response information including first information.

[0089] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0090] In one possible implementation, the transceiver unit is specifically used for: sending a first message, the first message including the second information in the first information; and sending response information for an uplink request message, the response information including the third information in the first information.

[0091] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0092] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0093] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0094] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0095] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0096] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0097] In one possible implementation, the transceiver unit is specifically used to: send a second message, which includes the first information.

[0098] In one possible implementation, the transceiver unit is specifically used for: sending a first message, the first message including second information from the first information; and sending a second message, the second message including third information from the first information.

[0099] In one possible implementation, the second message includes either DCI or MAC CE.

[0100] In one possible implementation, the apparatus further includes a transceiver unit for receiving uplink request information, which is used to request the transmission of a first SIB, and the uplink request information is carried in message 1 during the random access procedure.

[0101] In one possible implementation, the transceiver unit is specifically used to: send message 4 during the random access process, message 4 including first information.

[0102] In one possible implementation, the transceiver unit is specifically used for: sending a first message, which includes the second information in the first information; and sending message 4 in the random access process, which includes the third information in the first information.

[0103] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0104] In one possible implementation, the transceiver unit is used to: receive uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 3 during the random access process.

[0105] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0106] In one possible implementation, the first SIB includes SIB1.

[0107] Fifthly, embodiments of this application provide a terminal device configured to transmit SIBs in a wireless communication system. The terminal device includes: one or more processors and a memory; the memory is coupled to one or more processors and is used to store computer program code, the computer program code including computer instructions. One or more processors call the computer instructions to cause the terminal device to perform the method described in the first aspect or any possible implementation of the first aspect.

[0108] In a sixth aspect, embodiments of this application provide a network device configured to transmit SIBs in a wireless communication system. The network device includes: one or more processors and a memory; the memory is coupled to one or more processors and is used to store computer program code, the computer program code including computer instructions. One or more processors call the computer instructions to cause the network device to perform the methods described in the second aspect or any possible implementation of the second aspect.

[0109] In a seventh aspect, embodiments of this application provide a computer-readable storage medium including computer instructions that, when executed on an electronic device, cause the electronic device to perform the method described in the first aspect or any possible implementation thereof, or to implement the method described in the second aspect or any possible implementation thereof.

[0110] Eighthly, embodiments of this application provide a computer program product, which includes computer program code. When the computer program code is run on an electronic device, it causes the electronic device to perform the method described in the first aspect or any possible implementation thereof, or causes a computer to perform the method described in the second aspect or any possible implementation thereof.

[0111] Ninthly, embodiments of this application provide a chip or chip system applied to an electronic device. The chip or chip system includes one or more processors, which are configured to invoke computer instructions to cause the electronic device to perform the methods described in the first aspect or any possible implementation thereof, or to perform the methods described in the second aspect or any possible implementation thereof. The communication interface in the chip can be an input / output interface, pins, or circuits, etc.

[0112] In a tenth aspect, embodiments of this application provide a communication system, which includes a terminal device and a network device. The terminal device is used to execute the method described in the first aspect or any possible implementation thereof, and the network device executes the method described in the second aspect or any possible implementation thereof.

[0113] This application provides a method, device, and system for transmitting a First Injection Block (SIB). The method includes: a network device sending first information to a terminal device, the first information indicating the transmission information of a first SIB, wherein the first SIB is a request-based SIB; and the terminal device receiving the first SIB according to the first information. By sending the first information, it is ensured that the terminal device can receive the first SIB in a timely manner, while also reducing the number of times the network device sends the first SIB, thereby reducing the power consumption of the network device. Attached Figure Description

[0114] Figure 1A is a schematic diagram of the architecture of a communication system in the related technology;

[0115] Figure 1B is a timing diagram of SIB1 in a signal broadcast cycle provided in the related art;

[0116] Figure 2A is a schematic diagram of the sub-packet header format of MAC PDU in related technologies;

[0117] Figure 2B is a schematic diagram of the format of the payload portion of the MAC PDU in related technologies;

[0118] Figure 3A is an architecture diagram of a communication system provided in an embodiment of this application;

[0119] Figure 3B is another architecture diagram of the communication system provided in the embodiment of this application;

[0120] Figure 4 is a schematic diagram of the SIB transmission method provided in an embodiment of this application;

[0121] Figure 5 is a schematic diagram of the first window length provided in an embodiment of this application;

[0122] Figure 6 is a schematic diagram of the time offset value provided in an embodiment of this application;

[0123] Figure 7A is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0124] Figure 7B is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0125] Figure 8 is a schematic diagram of the SIB transmission method provided in the embodiments of this application;

[0126] Figure 9A is a schematic diagram of the format of the payload portion of the MAC PDU provided in an embodiment of this application;

[0127] Figure 9B is a schematic diagram of the format of the payload portion of the MAC PDU provided in an embodiment of this application;

[0128] Figure 9C is a schematic diagram of the format of the payload portion of the MAC PDU provided in the embodiment of this application;

[0129] Figure 9D is a schematic diagram of the format of the payload portion of the MAC PDU provided in the embodiment of this application;

[0130] Figure 10 is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0131] Figure 11 is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0132] Figure 12 is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0133] Figure 13 is a schematic diagram of the MAC CE format provided in the embodiment of this application;

[0134] Figure 14 is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0135] Figure 15 is a schematic diagram of the SIB transmission method provided in the embodiments of this application.

[0136] Figure 16 is a schematic diagram of the SIB transmission method provided in the embodiment of this application;

[0137] Figure 17 is a schematic diagram of the structure of a SIB transmission device provided in an embodiment of this application;

[0138] Figure 18 is a schematic diagram of another SIB transmission device provided in an embodiment of this application;

[0139] Figure 19 is a schematic diagram of the structure of the terminal device provided in an embodiment of this application;

[0140] Figure 20 is a schematic diagram of the structure of the network device provided in the embodiment of this application. Detailed Implementation

[0141] To facilitate a clear description of the technical solutions in the embodiments of this application, some terms and technologies involved in the embodiments of this application will be briefly introduced below:

[0142] 1. Community access:

[0143] The process of a terminal device accessing a cell mainly includes stages such as cell search and random access. Specifically, after the cell search process, the UE has achieved downlink synchronization with the cell and obtained the cell's physical cell identifier (PCI). Subsequently, the UE can obtain the cell's system information (SI) to configure the cell based on the SI, thereby accessing the cell and operating normally within it.

[0144] 2. SI

[0145] SI mainly includes MIB and SIB, and SIBs other than MIB and SIB1 are called other system information (OSI). Among them, the SIs that terminal equipment must obtain for normal cell camping and initiating random access are MIB and SIB1.

[0146] In this system, the cell transmits system information to all terminal devices within the cell via the broadcast control channel (BCCH). The BCCH is mapped to both the broadcast channel (BCH) and the downlink shared channel (DL-SCH). Furthermore, the BCH is used only for transmitting MIB information and is mapped to the physical broadcast channel (PBCH); the DL-SCH is used for transmitting various SIB information and is mapped to the physical downlink shared channel (PDSCH).

[0147] SIB1 is transmitted periodically within the cell, as shown in Figure 1B. The transmission period is a multiple of 20 milliseconds (ms), with a maximum period of 160 ms. The specific timing of SIB1 transmission can be determined by the configuration parameters in the MIB and the downlink scheduling of the network device. That is, the terminal device can detect and obtain SIB1 based on the SIB1 period and the physical downlink control channel (PDCCH)-ConfigSIB1 configuration information in the MIB.

[0148] 3. Format of the Media Access Control (MAC) Protocol Data Unit (PDU) used to respond to random access.

[0149] The MAC PDU may include at least one MAC sub-PDU, each MAC sub-PDU including a sub-header and a payload portion; or, the MAC PDU may include at least one MAC packet, a MAC packet including a MAC sub-header and a MAC sub-PDU, and a MAC sub-PDU including a payload portion. The structure of the sub-header is shown in Figure 2A, where T equals 1, indicating that the sub-header contains a random access preamble index (RAPID). The format of the payload portion is shown in Figure 2B.

[0150] 4. Other terms

[0151] In the embodiments of this application, terms such as "first" and "second" are used to distinguish identical or similar items with substantially the same function and purpose. For example, "first chip" and "second chip" are used only to distinguish different chips and do not limit their order of execution. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order, and that "first" and "second" do not necessarily imply that they are different.

[0152] It should be noted that, in the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0153] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can 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. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, a--c, bc, or abc, where a, b, and c can be single or multiple.

[0154] To better understand the methods provided in the embodiments of this application, the communication system architecture of the embodiments of this application will be described first below.

[0155] Figure 3A is an architecture diagram of a communication system provided in an embodiment of this application. As shown in Figure 3A, the communication system includes a network device 301 and a terminal device 302. The network device 301 can send first information to the terminal device 302, the first information indicating the transmission information of a first SIB. The network device 301 can also send the first SIB to the terminal device 302.

[0156] Figure 3B is another architecture diagram of the communication system provided in the embodiment of this application. As shown in Figure 3A, the communication system includes network device 301, network device 303 and terminal device 302. Network device 301 can send first information to terminal device 302. The first information indicates the transmission information of the first SIB. Network device 303 can send the first SIB to terminal device 302.

[0157] It should be noted that, for ease of understanding, Figures 3A and 3B only exemplarily show one network device and one terminal device. Optionally, the communication system may also include other network devices and the coverage area of ​​each network device may include other terminal devices. This application embodiment does not limit this.

[0158] The terminal device involved in the embodiments of this application can also be called a terminal, which can be a device with wireless transceiver capabilities. It can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons, and satellites). The terminal device can be user equipment (UE), where UE includes handheld devices, vehicle-mounted devices, wearable devices, or computing devices with wireless communication capabilities. For example, the UE can be a mobile phone, tablet computer, or computer with wireless transceiver capabilities. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in autonomous driving, a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and so on. In the embodiments of this application, the device used to implement the functions of the terminal device can be the terminal device itself; it can also be a device that supports the terminal device in implementing the functions, such as a chip system, which can be installed in the terminal device.

[0159] The network device involved in the embodiments of this application can be a device with wireless transceiver capabilities. The network device can be a NodeB base station, an evolved NodeB base station, a base station in a 5G mobile communication system or a new radio (NR) communication system, or a base station in a future mobile communication system (such as 6G), etc. In the embodiments of this application, the means for implementing the functions of the network device can be the network device itself, or it can be a means that supports the network device in implementing the functions, such as a chip system, which can be installed in the network device.

[0160] The technical solutions provided in this application can be applied to the Long Term Evolution (LTE) architecture, as well as the UMTS terrestrial radio access network (UTRAN) architecture, or the GSM EDGE radio access network (GERAN) architecture. Furthermore, the technical solutions provided in this application can also be applied to any other wireless communication system with similar structure and function, such as the Public Land Mobile Network (PLMN) system, 5G communication systems, or communication systems after 5G, such as 6G, etc., and this application does not impose any limitations on these applications. The 5G mobile communication system can be non-standalone (NSA) or standalone (SA).

[0161] Wireless communication between communication devices can include: wireless communication between network devices and terminal devices, wireless communication between network devices, and wireless communication between terminal devices. In the embodiments of this application, the term "wireless communication" can also be simply referred to as "communication," and the term "communication" can also be described as "data transmission," "information transmission," or "transmission." Those skilled in the art can use the technical solutions provided in the embodiments of this application to perform wireless communication between network devices and terminal devices, such as wireless communication between access network devices and terminal devices.

[0162] In related technologies, to ensure that terminal devices can correctly receive SIB1, the cell needs to continuously send SIB1, resulting in high energy consumption of network equipment. Although the energy-saving scheme proposed in the NES project can save network energy, how the terminal device obtains the requested SIB1 after sending uplink request information is a technical problem that urgently needs to be solved.

[0163] Based on the above-mentioned technical problems, this application provides a method for transmitting SIBs, including: based on the energy-saving scheme proposed in the above-mentioned NES project, the network device configures SIB transmission information to the terminal device; after obtaining the SIB transmission information, the terminal device determines the effective transmission time of the SIB according to the SIB transmission information, and completes the transmission of the SIB within the effective transmission time of the SIB.

[0164] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the following embodiments may exist independently or in combination. For the same or similar content, such as explanations of terms or nouns, and explanations of steps, reference can be made to each other in different embodiments, and will not be repeated.

[0165] It should be noted that the granularity of time (e.g., sending time, receiving time, etc.) is not limited in the embodiments of this application. For example, the granularity of time can be wireless frame, subframe, time slot, millisecond, absolute time, etc.

[0166] Figure 4 is a schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 4, the SIB transmission method includes:

[0167] S401. The network device sends first information to the terminal device. The first information is used to indicate the transmission information of the first SIB. The first SIB is a request-based SIB.

[0168] In other words, the terminal device receives the first information sent by the network device.

[0169] For example, the terminal device in this application can be a terminal device with NES capability, that is, a terminal device that can send uplink request information to network devices.

[0170] Uplink request information can be used to request the sending of the first SIB.

[0171] The uplink request information can be an uplink wake-up signal (UL-WUS).

[0172] The first SIB can refer to the SIB sent by the network device after the terminal device sends the uplink request information.

[0173] In the embodiments of this application, the first SIB can be SIB1.

[0174] In one possible implementation, the first information may include at least one of the following:

[0175] 1) First instruction information

[0176] The first indication information can indicate the transmission duration of the first SIB.

[0177] Within the transmission duration of the first SIB, the first SIB can be transmitted in a prescribed manner.

[0178] The first indication information may include any of the following: ① first coefficient, ② start and end transmission times of the first SIB, ③ number of time slots, ④ number of radio frames, ⑤ number of radio subframes, and ⑥ first window length.

[0179] The first coefficient can be a multiple of the transmission period of the first SIB, or a multiple of the change period of system information, or a multiple of the window length of the random access response (RAR), and the first coefficient can be a positive integer.

[0180] For example, if the first coefficient is a multiple of the transmission period of the first SIB, and the first coefficient is 3, and the transmission period of the first SIB is 160ms, then it means that the transmission duration of the first SIB can be 480ms.

[0181] As another example, if the first coefficient is a multiple of the system information change period, and the first coefficient is 1, and the system information change period is 640ms, then it means that the transmission duration of the first SIB can be 640ms.

[0182] The first window length can be the RAR window length, or the first window length can be the remaining length of the RAR window after the RAR is received.

[0183] For example, if the first window length is 10ms, it means that the transmission duration of the first SIB can be 10ms.

[0184] As another example, as shown in Figure 5, the RAR window length is 10ms. If the RAR is received in the 3ms, then the first window length is 7ms, that is, the transmission time of the first SIB is 7ms.

[0185] The transmission duration can also be called the scheduling duration. This application does not limit the specific name of the transmission duration. As long as the meaning of the name is the same as the meaning of the transmission duration, the name can be equated with the transmission duration. That is, as long as the first SIB is transmitted within a certain duration, the duration can be considered as the transmission duration of the first SIB.

[0186] 2) Second instruction information

[0187] The second instruction information can indicate the timing of the transmission of the first SIB.

[0188] The second indication information may include the transmission time or time offset value of the first SIB.

[0189] The time offset value can be the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value can be the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value can be the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0190] For example, if the time offset value T is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, as shown in Figure 6, and the terminal device sends the uplink request information at time t1, then the terminal device can determine that the transmission time of the first SIB is at time t2, where time t2 = time t1 + T.

[0191] As another example, if the time offset value T is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, as shown in Figure 6, and the terminal device receives the response information of the uplink request information at time t1, then the terminal device can determine that the transmission time of the first SIB is at time t2, where time t2 = time t1 + T.

[0192] As another example, if the time offset value T is the time interval between the transmission time of the first SIB and the end time of the RAR window, as shown in Figure 6, and the end time of the RAR window is at time t1, then the terminal device can determine that the transmission time of the first SIB is at time t2, where time t2 = time t1 + T.

[0193] The first SIB can be sent or not at the designated time. When the time for sending the first SIB is reached, it means that the first SIB has entered the sending window. The first SIB can be sent in accordance with the prescribed method within the first SIB sending window.

[0194] The transmission timing can also be called the scheduling timing. This application does not limit the specific name of the transmission timing. As long as the meaning defined by the name is the same as the meaning defined by the transmission timing, the name can be equated with the transmission timing. That is, as long as the first SIB is transmitted at a certain time, the time can be considered as the transmission timing of the first SIB.

[0195] 3) Third instruction information

[0196] The third instruction information can indicate the transmission method of the first SIB.

[0197] The first SIB can be transmitted continuously, periodically, or a combination of continuous and periodic transmission.

[0198] The third indication information may include at least one of the following: ① number of transmissions, ② second window length, ③ transmission cycle of the first SIB.

[0199] When the third indication information includes the number of transmissions or the second window length, it indicates that the first SIB's transmission mode is continuous transmission. When the third indication information includes the first SIB's transmission period, it indicates that the first SIB's transmission mode is periodic transmission. When the third indication information includes both the number of transmissions and the first SIB's transmission period, it indicates that the first SIB's transmission mode is a combination of continuous and periodic transmission. For example, the first SIB can first transmit continuously N times and then transmit periodically until it stops transmitting, where N is the number of transmissions in the third indication information. When the third indication information includes both the second window length and the first SIB's transmission period, it indicates that the first SIB's transmission mode is a combination of continuous and periodic transmission. For example, the first SIB can first transmit continuously within the second window length and then transmit periodically until it stops transmitting.

[0200] The transmission method can also be called the scheduling method. This application does not limit the specific name of the transmission method. As long as the meaning of the name is the same as the meaning of the transmission method, the name can be equated with the transmission method.

[0201] The following examples illustrate in detail the contents of the first piece of information.

[0202] (1) The first information includes the first instruction information.

[0203] In this example, the timing and method of sending the first SIB can be predefined by the protocol. The terminal device can detect the first SIB based on the first indication information and the predefined timing and method of sending the first SIB. The terminal device can also detect the first SIB within the transmission duration indicated by the first indication information. The terminal device can also detect the first SIB based on the first indication information, the transmission timing of the SIB indicated in the MIB, and relevant information in the downlink scheduling information.

[0204] (2) The first information includes the second instruction information.

[0205] In this example, the transmission duration and transmission method of the first SIB can be predefined by the protocol. The terminal device can detect the first SIB based on the second indication information and the transmission duration and transmission method of the first SIB predefined by the protocol. Alternatively, the terminal device can detect the first SIB based on the second indication information, the transmission timing of the SIB indicated in the MIB, and relevant information in the downlink scheduling information.

[0206] (3) The first information includes the third instruction information.

[0207] In this example, the timing and duration of the first SIB transmission can be predefined by the protocol. The terminal device can detect the first SIB based on the third indication information and the predefined transmission duration and timing of the first SIB. Alternatively, the terminal device can detect the first SIB based on the third indication information, the transmission timing of the SIB indicated in the MIB, and relevant information in the downlink scheduling information.

[0208] If the third indication information includes the number of transmissions and the transmission period of the first SIB, then it can be transmitted N times with the transmission period of the first SIB, where N is the number of transmissions in the third indication information and N is a positive integer.

[0209] (4) The first information includes the first instruction information and the second instruction information.

[0210] In this example, the method of sending the first SIB can be predefined by the protocol.

[0211] (5) The first information includes the first instruction information and the third instruction information.

[0212] In this example, the timing of the first SIB transmission can be predefined by the protocol, or the timing of the SIB transmission indicated in the MIB can be used, or the terminal device can detect the first SIB within the transmission duration indicated by the first indication information.

[0213] (6) The first information includes the second instruction information and the third instruction information.

[0214] In this example, the transmission duration of the first SIB can be predefined by the protocol.

[0215] (7) The first information includes the first instruction information, the second instruction information and the third instruction information.

[0216] The first information can also be called the detection information of the first SIB or the scheduling information of the first SIB. This application does not limit the name of the first information. As long as the meaning defined by the name is the same as the meaning defined by the first information, the name can be equivalent to the first information.

[0217] S402. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0218] The terminal device determines the effective transmission time of the first SIB based on the first information, and receives the first SIB during the effective transmission time of the first SIB.

[0219] Specifically, the terminal device detects the PDCCH when the first SIB is transmitted, determines the scheduling information of the physical downlink shared channel (PDSCH) based on the PDCCH, and then detects the PDSCH based on the scheduling information of the PDSCH to obtain the first SIB.

[0220] In the embodiment shown in Figure 4, the network device sends first information to the terminal device. The first information indicates the transmission information of a first SIB, which is a request-based SIB. The terminal device receives the first SIB according to the first information. By sending the first information, it is ensured that the terminal device can receive the first SIB in a timely manner, and the number of times the network device sends the first SIB is reduced, thereby reducing the power consumption of the network device.

[0221] Based on the embodiment shown in FIG4, the SIB transmission method of this application will be described in detail below with reference to FIG7A to FIG16.

[0222] Figure 7A is a second schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 7A, the SIB transmission method includes:

[0223] S701. The network device sends a first message to the terminal device. The first message includes first information, which is used to indicate the transmission information of the first SIB.

[0224] In other words, the terminal device receives the first message sent by the network device.

[0225] In the embodiments of this application, the first SIB can be SIB1.

[0226] The first message can be used to indicate the request configuration information for the first SIB, or it can be a separate message.

[0227] In one possible implementation, the first message can be system information of a first cell. The first cell is the cell that provides the request configuration information for the first SIB to the second cell; the second cell is an NES cell. The first cell and the second cell can belong to the same network device, or they can belong to different network devices.

[0228] For details related to the first information, please refer to the relevant description of the first information in S401, which will not be repeated here.

[0229] In another embodiment, S701 can send the first message via PDCCH or PDSCH.

[0230] In one possible implementation, the first message may also include a first radio network temporary identifier (RNTI). The first RNTI can be used to descramble the control channel corresponding to the response information of the uplink request information. The first RNTI can be the RNTI of the first SIB (denoted as SIB-RNTI), SI-RNTI, or RA-RNTI.

[0231] The control channel can refer to the PDCCH, which carries the scheduling information of the PDSCH. The PDSCH can be detected through the scheduling information of the PDSCH, and the response information is carried in the PDSCH.

[0232] Network devices can determine the first information before sending the first message.

[0233] S702. The terminal device sends an uplink request message to the network device. The uplink request message is used to request the transmission of the first SIB.

[0234] In other words, the network device receives uplink request information sent by the terminal device.

[0235] Uplink request information can be used to request the NES cell to send the first SIB.

[0236] The uplink request information can be carried in message 1 of the two-step random access process, and message 1 can also be message A.

[0237] Message 1 in the two-step random access process can be used to send the random access preamble.

[0238] After receiving the request configuration information from the first SIB, the terminal device can send uplink request information to the network device based on the request configuration information from the first SIB.

[0239] For example, a terminal device can receive a synchronization signal / physical broadcast channel (SPCC) block (SSB) and parse the MIB signal within the SSB to determine that the first SIB is a signal sent by the network device based on a request from the terminal device, and then send uplink request information. In other words, the network device triggers the terminal device to send uplink request information.

[0240] For example, a terminal device can also send an uplink request to the network device when it has a need, that is, the terminal device triggers itself to send an uplink request.

[0241] In another embodiment, S702 can send uplink request information via PUCCH, PUSCH, or physical random access channel (PRACH).

[0242] S703, Response information of network devices sending uplink request information to terminal devices.

[0243] In other words, the terminal device receives the response information of the uplink request information sent by the network device.

[0244] The response information can be carried in message 2 of the two-step random access process, or message 2 can be message B.

[0245] Message 2 in the two-step random access process can be used to send a random access response (RAR).

[0246] Message 2 can be a MAC PDU used to respond to random access; that is, the response information can be carried in a MAC PDU used to respond to random access.

[0247] The term "carried in" can indicate that the MAC PDU contains only response information, or that it may contain other information in addition to response information.

[0248] The control channel corresponding to the response information can be scrambled using RNTI. For example, the control channel corresponding to the response information can be scrambled using the first RNTI. The first RNTI can be calculated by the terminal device, configured through the first message in S701, or predefined by the protocol. The first RNTI can be a non-group RNTI or a group RNTI. When the first RNTI is a group RNTI, it can be the RNTI of the first SIB, SI-RNTI, or RA-RNTI. Multiple terminal devices sending uplink request information can use the first RNTI to descramble the control channel, that is, use the first RNTI to scramble the control channel corresponding to the response information, so as to support multiple terminal devices to detect the response information at the same time and reduce the one-to-one response of network devices.

[0249] In another embodiment, S703 can send response information via PDCCH or PDSCH.

[0250] S704. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0251] It should be noted that the execution process of S704 can be found in the execution process of S402, and will not be repeated here.

[0252] In another embodiment, S704 can send the first message via PDCCH or PDSCH.

[0253] In the embodiment shown in Figure 7A, the network device can send first information to the terminal device before the terminal device sends uplink request information; after the terminal device sends uplink request information, the terminal device can receive the first SIB based on the first information. By sending the first information, it is possible to ensure that the terminal device can receive the first SIB in a timely manner, and the number of times the network device sends the first SIB is reduced, thereby reducing the power consumption of the network device.

[0254] It should be noted that the network devices in the various steps of the embodiment shown in FIG7A can be the same network device or different network devices. For example, in the embodiment shown in FIG7A, the network device in S701 can be a first network device, and the network devices in S702 to S704 can be a second network device.

[0255] When the network device in each step is the same network device, the cells corresponding to each step in the embodiment shown in FIG7A can be the same, and the cells corresponding to each step in the embodiment shown in FIG7A can be different. For example, S701 can correspond to the first cell in the network device, and S702 to S704 can correspond to the second cell in the network device.

[0256] For ease of understanding, the following details how to implement the scheme of this application when the network devices in each step are different network devices.

[0257] Example 1, as shown in Figure 7B: S701, the first network device sends a first message to the terminal device, the first message including first information, the first information being used to indicate the transmission information of the first SIB; S702, the terminal device sends uplink request information to the second network device, the uplink request information being used to request the transmission of the first SIB; S703, the second network device sends response information of the uplink request information to the terminal device; S704, the second network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0258] It should be noted that the execution process of Example 1 is the same as that of the embodiment shown in Figure 7A, except that the network devices in each step are different.

[0259] The following details how to implement the scheme of this application when the corresponding cells for each step are different cells.

[0260] Example 2, S701, The network device to which the first cell belongs sends a first message to the terminal device. The first message includes first information, which is used to indicate the transmission information of the first SIB in the second cell; S702, The terminal device sends uplink request information to the network device to which the second cell belongs. The uplink request information is used to request the second cell to send the first SIB; S703, The network device to which the second cell belongs sends response information of the uplink request information to the terminal device; S704, The network device to which the second cell belongs sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0261] It should be noted that the execution process of Example 2 is the same as that of the embodiment shown in Figure 7A, except that the cells corresponding to each step are different.

[0262] In the embodiments, examples 1 and 2 shown in Figure 7A, it should be noted that S703 is an optional step, and the terminal device can receive the first SIB directly from S702 to S704 based on the first information in S701.

[0263] Figure 8 is a schematic diagram of the SIB transmission method provided in this application embodiment. As shown in Figure 8, the SIB transmission method includes:

[0264] S801, The network device sends the first message to the terminal device.

[0265] In other words, the terminal device receives the first message sent by the network device.

[0266] For details related to the first message, please refer to the relevant description of the first message in S701, which will not be repeated here.

[0267] It should be noted that S801 is an optional step. When the first message is not used to indicate the request configuration information of the first SIB and the first RNTI, S801 does not need to be executed.

[0268] S802. The terminal device sends an uplink request message to the network device. The uplink request message is used to request the transmission of the first SIB.

[0269] In the embodiments of this application, the first SIB can be SIB1.

[0270] It should be noted that the execution process of S802 can be found in the execution process of S702, and will not be repeated here.

[0271] S803. Response information from the network device to the terminal device for sending uplink request information, the response information including first information, the first information being used to indicate the transmission information of the first SIB.

[0272] For details related to the first information, please refer to the relevant description of the first information in S401, which will not be repeated here.

[0273] The response information can be carried in a MAC PDU used to respond to random access.

[0274] When the RAPID in the header of a MAC PDU used to respond to random access corresponds to the random access preamble requesting the first SIB, the MAC PDU includes a payload portion.

[0275] The following methods illustrate how to indicate that the MAC PDU includes the first information.

[0276] 1) When the value of the reserved bit (R) in the payload portion of the MAC PDU is a first value, the payload portion of the MAC PDU includes first information.

[0277] The first value can refer to the value of the bit field that is reserved for use.

[0278] For example, when R=1 in the payload portion of the MAC PDU, the payload portion of the MAC PDU includes first information, and the format of the payload portion of the MAC PDU can be as shown in FIG9A.

[0279] 2) When the Temporary Cell Radio Network Temporary Identifier (TC-RNTI) in the payload portion of the MAC PDU is the first RNTI, the payload portion of the MAC PDU includes the first information.

[0280] For example, when the TC-RNTI in the payload portion of the MAC PDU is SI-RNTI or SIB-RNTI, the payload portion of the MAC PDU includes first information, and the format of the payload portion of the MAC PDU can be as shown in Figure 9B.

[0281] 3) When the value of the uplink grant (UL-grant) in the payload portion of the MAC PDU is the second value, the payload portion of the MAC PDU includes the first information.

[0282] The second value can refer to the value of the bit field occupied by the uplink grant.

[0283] For example, when all uplink grant values ​​in the payload portion of the MAC PDU are 0, the payload portion of the MAC PDU includes first information, and the format of the payload portion of the MAC PDU can be as shown in Figure 9C.

[0284] As another example, when all uplink grant values ​​in the payload portion of the aforementioned MAC PDU are 1, the payload portion of the aforementioned MAC PDU includes first information.

[0285] 4) When the RAPID in the header of the MAC PDU corresponds to the random access preamble requesting the first SIB, the payload portion of the MAC PDU includes the first information.

[0286] For example, in this manner, the format of the payload portion of the aforementioned MAC PDU can be as shown in Figure 9D.

[0287] 5) When the control channel corresponding to the response information is scrambled by the first RNTI, and the first RNTI is the RNTI of the first SIB or SI-RNTI, the payload portion of the above MAC PDU includes the first information.

[0288] It should be noted that the number and order of bits occupied by the first, second, and third indication information in Figures 9A to 9D are merely examples, and this application does not limit the number and order of bits occupied by the first, second, and third indication information. Optionally, if the first information does not meet the payload size requirements, padding bits are required.

[0289] S804: The network device sends the first SIB, and the terminal device receives the first SIB based on the first information.

[0290] It should be noted that the execution process of S804 can be found in the execution process of S402, and will not be repeated here.

[0291] In the embodiment shown in Figure 8, the network device can send first information to the terminal device after the terminal device sends uplink request information. After the terminal device sends the uplink request information, it can receive the first SIB based on the first information. By sending the first information, it ensures that the terminal device can receive the first SIB in a timely manner, while reducing the number of times the network device sends the first SIB, thus reducing the network device's energy consumption. Furthermore, compared to the embodiment shown in Figure 7, the network device can more flexibly adjust the first information, further shortening the time it takes for the network device to send the first SIB.

[0292] Figure 10 is a schematic diagram of the SIB transmission method provided in this application embodiment. As shown in Figure 10, the SIB transmission method includes:

[0293] S1001, The network device sends the first message to the terminal device.

[0294] For details related to the first message, please refer to the relevant description of the first message in S701, which will not be repeated here.

[0295] It should be noted that S1001 is an optional step. When the first message is not used to indicate the request configuration information of the first SIB and the first RNTI, S1001 does not need to be executed.

[0296] S1002. The terminal device sends an uplink request message to the network device. The uplink request message is used to request the transmission of the first SIB.

[0297] In the embodiments of this application, the first SIB can be SIB1.

[0298] S1003, Response information of network device sending uplink request information to terminal device

[0299] It should be noted that the execution process of S1001 to S1002 can be referred to the execution process of S801 to S802, and the execution process of S1003 can be referred to the execution process of S703, which will not be repeated here.

[0300] S1004. The network device sends a second message to the terminal device. The second message includes first information, which is used to indicate the transmission information of the first SIB.

[0301] In other words, the terminal device receives the second message sent by the network device.

[0302] The second message can be downlink control information (DCI), MAC CE, or a MAC PDU for random access response.

[0303] In one possible implementation, the second message can be scrambled using the first RNTI. When the terminal device receives the second message scrambled using the first RNTI, it can determine that the second message includes the first information.

[0304] S1005. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0305] It should be noted that the execution process of S1005 can be found in the execution process of S402, and will not be repeated here.

[0306] The beneficial effects of the embodiment shown in Figure 10 are the same as those of the embodiment shown in Figure 8, and will not be repeated here.

[0307] Figure 11 is a schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 11, the SIB transmission method includes:

[0308] S1101, The network device sends a first message to the terminal device. The first message includes first information, which is used to indicate the transmission information of the first SIB.

[0309] In the embodiments of this application, the first SIB can be SIB1.

[0310] It should be noted that the execution process of S1101 can be found in the execution process of S701, and will not be repeated here.

[0311] S1102, The terminal device sends message 1 during the random access process to the network device.

[0312] In other words, the network device receives message 1 from the terminal device during the random access process.

[0313] Message 1 in the random access process can be used to send the random access preamble.

[0314] Message 1 can be Message 1 in the four-step random access process.

[0315] S1103, The network device sends message 2 during the random access process to the terminal device.

[0316] In other words, the terminal device receives message 2 from the network device during the random access process.

[0317] Message 2 in the random access process can be used to send a MAC PDU (RAR) for the random access response.

[0318] RAR can be scrambled via random access (RA) RNTI and includes RAPID, as well as TC-RNTI assigned to the terminal device, uplink grant, timing advance command (TAC), etc.

[0319] Message 2 can be message 2 in the four-step random access process.

[0320] S1104. The terminal device sends message 3 during the random access process to the network device. Message 3 includes uplink request information, which is used to request the sending of the first SIB.

[0321] In other words, the network device receives message 3 from the terminal device during the random access process.

[0322] Message 3 can be message 3 in the four-step random access process.

[0323] Message 3 can be a request for information from the Radio Resource Control (RRC) system.

[0324] Example 1: The RRC system information request information can be as follows:

[0325] The RRC system information request information in Example 1 can be used to request SIB1 and other SIs.

[0326] Example 2: The RRC system information request information can be as follows:

[0327] The RRC system information request information in Example 2 can be used to request SIB1.

[0328] Example 3: The RRC system information request information can be as follows:

[0329] The RRC system information request information in Example 3 can be used to request other SIs.

[0330] Message 3 can also be an RRC message such as RRC Reconstruction Request Message, RRC Recovery Request Message, or RRC Establishment Request Message.

[0331] S1105, The network device sends message 4 during the random access process to the terminal device.

[0332] In other words, the terminal device receives message 4 from the network device during the random access process.

[0333] Message 4 can be message 4 in the four-step random access process.

[0334] S1106. The network device sends the first SIB, and the terminal device receives the first SIB according to the first information.

[0335] It should be noted that the execution process of S1106 can be found in the execution process of S402, and will not be repeated here.

[0336] The beneficial effects of the embodiment shown in Figure 11 are the same as those of the embodiment shown in Figure 7.

[0337] Figure 12 is a schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 12, the SIB transmission method includes:

[0338] S1201, The network device sends the first message to the terminal device.

[0339] In other words, the terminal device receives the first message sent by the network device.

[0340] For details related to the first message, please refer to the relevant description of the first message in S701, which will not be repeated here.

[0341] It should be noted that S1201 is an optional step. When the first message is not used to indicate the request configuration information of the first SIB and the first RNTI, S1201 does not need to be executed.

[0342] S1202, The terminal device sends message 1 during the random access process to the network device.

[0343] S1203, The network device sends message 2 during the random access process to the terminal device.

[0344] S1204. The terminal device sends message 3 during the random access process to the network device. Message 3 includes uplink request information, which is used to request the sending of the first SIB.

[0345] In the embodiments of this application, the first SIB can be SIB1.

[0346] It should be noted that the execution process of S1202 to S1204 can be found in the execution process of S1102 to S1104, and will not be repeated here.

[0347] S1205. The network device sends message 4 during the random access process to the terminal device. Message 4 includes first information, which is used to indicate the transmission information of the first SIB.

[0348] For details related to the first information, please refer to the relevant description of the first information in S401, which will not be repeated here.

[0349] Message 4 may carry a MAC CE. When the control channel corresponding to message 4 is scrambled by the first RNTI, the first RNTI can be the RNTI of the first SIB, or SI-RNTI or TC-RNTI, and the logical channel identification (LCID) in the MAC CE is a third value, the MAC CE includes the first information.

[0350] The existing indicator bit can be used to indicate the third value, i.e., the third value can be 62; or a dedicated LCID can be defined for the first SIB detection MAC CE, for example, the third value can be any value from 35 to 64.

[0351] For example, when the third value is 62, the format of MAC CE can be as shown in Figure 13.

[0352] It should be noted that the number and order of bits occupied by the first, second, and third indication information in Figure 13 are merely examples, and this application does not limit the number and order of bits occupied by the first, second, and third indication information. Optionally, if the first information does not meet the size requirement of the MAC CE, padding bits are required.

[0353] When the control channel corresponding to message 4 is scrambled by the first RNTI, the first RNTI can be the RNTI of the first SIB, or SI-RNTI, or TC-RNTI, or a fixed number of bits of the RRC message in S1203, and the value of the reserved bit in MAC CE is the fourth value, then MAC CE includes the first information. Preferably, TC-RNTI is the TC-RNTI allocated in S1203.

[0354] It should be noted that message 4 can also be an RRC message or a MAC PDU; the fixed number of bits in the RRC message in S1203 can be the first 16 or 32 bits of the uplink request information in S1204.

[0355] S1206. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0356] The process of receiving the first SIB based on the first information can be found in the execution process of S402, and will not be repeated here.

[0357] It should be noted that network devices can send the first SIB via RRC dedicated signaling, and UEs can detect the first SIB via cell RNTI.

[0358] The beneficial effects of the embodiment shown in Figure 12 are the same as those of the embodiment shown in Figure 8. The only difference is that the embodiment shown in Figure 8 uses a two-step random access procedure to implement the scheme of this application, while the embodiment shown in Figure 12 uses a four-step random access procedure to implement the method of this application.

[0359] In one possible implementation, based on the embodiment shown in FIG4, the first information may include second information and third information. The second information includes at least one of the following: first indication information, second indication information, and third indication information. The third information includes at least one of the first information other than the second information.

[0360] The content related to the first instruction information, the second instruction information and the third instruction information can be found in the corresponding description in S401, and will not be repeated here.

[0361] Below are examples illustrating the content included in the second and third pieces of information.

[0362] Example 1: The second information may include the first instruction information, and the third information may include the second instruction information.

[0363] Example 2: The second information may include the second instruction information, and the third information may include the first instruction information.

[0364] Example 3: The second information may include the first instruction information, and the third information may include the third instruction information.

[0365] Example 4: The second information may include the third instruction information, and the third information may include the first instruction information.

[0366] Example 5: The second information may include the first instruction information and the second instruction information, and the third information may include the third instruction information.

[0367] Example 6: The second information may include a third instruction, and the third information may include the first instruction and the second instruction.

[0368] Example 7: The second information may include the first instruction information and the third instruction information, and the third information may include the second instruction information.

[0369] Example 8: The second information may include the second instruction information, and the third information may include the first instruction information and the third instruction information.

[0370] Example 9: The second information may include a second instruction information and a third instruction information, and the third information may include the first instruction information.

[0371] Example 10: The second information may include the first instruction information, and the third information may include both the second instruction information and the third instruction information.

[0372] Based on the above implementation method, the following describes in detail, with reference to Figures 14, 15 and 16, how the network device sends second information and third information to the terminal device.

[0373] Figure 14 is a schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 14, the SIB transmission method includes:

[0374] S1401, The network device sends a first message to the terminal device, the first message including the second information in the first information.

[0375] The content of the second information can be found in the relevant description in the above embodiments, and the content related to the first message can be found in the relevant description of the first message in S701, which will not be repeated here.

[0376] S1402. The terminal device sends an uplink request message to the network device. The uplink request message is used to request the transmission of the first SIB.

[0377] In the embodiments of this application, the first SIB can be SIB1.

[0378] It should be noted that the execution process of S1402 can be found in the execution process of S702, and will not be repeated here.

[0379] S1403. Response information from the network device to the terminal device for sending uplink request information, the response information including the third information in the first information.

[0380] The content of the third information can be found in the relevant description in the above implementation. The content related to the response information can be found in the relevant description of the response information in S803. It will not be repeated here. The only thing that needs to be explained is that the third information in the first information can be indicated in the above MAC PDU through the five methods in S803.

[0381] S1404. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0382] It should be noted that the execution process of S804 can be found in the execution process of S402, and will not be repeated here.

[0383] In the embodiment shown in Figure 14, the network device can send a second message to the terminal device before the terminal device sends the uplink request information, and a third message to the terminal device after the terminal device sends the uplink request information. The terminal device can receive the first SIB based on the second and third messages. By sending the first message, it is ensured that the terminal device can receive the first SIB in a timely manner, and the number of times the network device sends the first SIB is reduced, thereby reducing the power consumption of the network device. Furthermore, compared with the embodiment shown in Figure 7, the embodiment shown in Figure 14 sends the first message by combining fixed and flexible configurations, which can further shorten the time for the network device to send the first SIB.

[0384] Figure 15 is a schematic diagram nine of the SIB transmission method provided in an embodiment of this application. As shown in Figure 15, the SIB transmission method includes:

[0385] S1501, The network device sends a first message to the terminal device, the first message including the second information in the first information.

[0386] The content of the second information can be found in the relevant description in the above embodiments, and the content related to the first message can be found in the relevant description of the first message in S701, which will not be repeated here.

[0387] S1502. The terminal device sends an uplink request message to the network device. The uplink request message is used to request the transmission of the first SIB.

[0388] In the embodiments of this application, the first SIB can be SIB1.

[0389] S1503, Response information of the network device sending uplink request information to the terminal device.

[0390] It should be noted that the execution process of S1502 to S1503 can be found in the execution process of S702 to S703, and will not be repeated here.

[0391] S1504. The network device sends a second message to the terminal device, the second message including the third information in the first message.

[0392] The content of the third information can be found in the relevant description in the above embodiments, and the content related to the second message can be found in the relevant description of the second message in S1004, which will not be repeated here.

[0393] S1505. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0394] It should be noted that the execution process of S1505 can be found in the execution process of S402, and will not be repeated here.

[0395] The beneficial effects of the embodiment shown in Figure 15 are the same as those of the embodiment shown in Figure 14, and will not be repeated here.

[0396] Figure 16 is a schematic diagram of the SIB transmission method provided in an embodiment of this application. As shown in Figure 16, the SIB transmission method includes:

[0397] S1601. The network device sends a first message to the terminal device, the first message including the second information in the first information.

[0398] The content of the second information can be found in the relevant description in the above embodiments, and the content related to the first message can be found in the relevant description of the first message in S701, which will not be repeated here.

[0399] S1602, The terminal device sends message 1 during the random access process to the network device.

[0400] S1603, The network device sends message 2 during the random access process to the terminal device.

[0401] S1604. The terminal device sends message 3 during the random access process to the network device. Message 3 includes uplink request information, which is used to request the sending of the first SIB.

[0402] It should be noted that the execution process of S1602 to S1604 can be found in the execution process of S1102 to S1104, and will not be repeated here.

[0403] S1605. The network device sends message 4 during the random access process to the terminal device. Message 4 includes the third information in the first information.

[0404] The content of the third information can be found in the relevant description in the above implementation method. The content related to message 4 can be found in the relevant description of message 4 in S1205, and will not be repeated here.

[0405] S1606. The network device sends the first SIB according to the first information, and the terminal device receives the first SIB according to the first information.

[0406] It should be noted that the execution process of S1606 can be found in the execution process of S402, and will not be repeated here.

[0407] The beneficial effects of the embodiment shown in Figure 16 are the same as those of the embodiment shown in Figure 14, and will not be repeated here.

[0408] It should be noted that the network devices in the various steps of any of the above embodiments may be the same network device or different network devices. For example, in the embodiment shown in FIG7A, the network device in S701 may be a first network device, and the network devices in S702 to S704 may be a second network device. When the network device in each step is the same network device, the cells corresponding to each step in the embodiment shown in FIG7A may be different. For example, S701 may correspond to the first cell in the network device, and S702 to S704 may correspond to the second cell in the network device.

[0409] Figure 17 is a schematic diagram of the structure of a transmission device for an SIB provided in an embodiment of this application. As shown in Figure 17, the device 1700 includes: a transceiver unit 1701, configured to receive first information, the first information being used to indicate the transmission information of a first SIB, the first SIB being a request-based SIB; the transceiver unit 1701 is also configured to receive the first SIB according to the first information.

[0410] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0411] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0412] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0413] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0414] In one possible implementation, the transceiver unit 1701 is specifically used to: receive a first message, the first message including first information.

[0415] In one possible implementation, the transceiver unit 1701 is specifically used to: receive response information of uplink request information, the response information including first information.

[0416] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0417] In one possible implementation, the transceiver unit 1701 is specifically used for: receiving a first message, the first message including second information in the first information; and receiving response information to an uplink request message, the response information including third information in the first information.

[0418] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0419] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0420] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0421] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0422] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0423] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0424] In one possible implementation, the transceiver unit 1701 is specifically used to: receive a second message, the second message including the first information.

[0425] In one possible implementation, the transceiver unit 1701 is specifically used for: receiving a first message, the first message including second information in the first information; and receiving a second message, the second message including third information in the first information.

[0426] In one possible implementation, the second message includes either DCI or MAC CE.

[0427] In one possible implementation, the transceiver unit 1701 is also used to send uplink request information, which is used to request the transmission of the first SIB. The uplink request information is carried in message 1 during the random access process.

[0428] In one possible implementation, the transceiver unit 1701 is specifically used to: receive message 4 during the random access process, where message 4 includes first information.

[0429] In one possible implementation, the transceiver unit 1701 is specifically used for: receiving a first message, the first message including the second information in the first information; and receiving message 4 in the random access process, message 4 including the third information in the first information.

[0430] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0431] In one possible implementation, the transceiver unit 1701 is also used to send uplink request information, which is used to request the transmission of the first SIB. The uplink request information is carried in message 3 during the random access process.

[0432] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0433] In one possible implementation, the first SIB includes SIB1.

[0434] The SIB transmission device 1700 provided in this embodiment is used to implement the technical solution of the terminal device in the aforementioned method embodiment. Its implementation principle and technical effect are similar, and will not be described again here.

[0435] Figure 18 is a schematic diagram of another SIB transmission device provided in an embodiment of this application. As shown in Figure 18, the device 1800 includes: a transceiver unit 1801, used to transmit first information, the first information being used to indicate the transmission information of a first SIB, the first SIB being a request-based SIB; the transceiver unit 1801 is also used to transmit the first SIB.

[0436] In one possible implementation, the first information includes at least one of the following: first indication information, second indication information, and third indication information; wherein the first indication information indicates at least the transmission duration of the first SIB, the second indication information indicates at least the transmission timing of the first SIB, and the third indication information indicates at least the transmission method of the first SIB.

[0437] In one possible implementation, the first indication information includes any one of the following: a first coefficient, the start and end times of the first SIB transmission, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; wherein the first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the system information change period, or a multiple of the RAR window length, and the first coefficient is a positive integer; the first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

[0438] In one possible implementation, the second indication information includes the transmission time or time offset value of the first SIB; wherein the time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

[0439] In one possible implementation, the third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

[0440] In one possible implementation, the transceiver unit 1801 is specifically used to: send a first message, the first message including first information.

[0441] In one possible implementation, the transceiver unit 1801 is specifically used to: send response information for the uplink request information, the response information including first information.

[0442] In one possible implementation, the first information includes second information and third information, the second information including at least one of the following: first instruction information, second instruction information, and third instruction information, and the third information including at least one of the first information other than the second information.

[0443] In one possible implementation, the transceiver unit 1801 is specifically used for: sending a first message, the first message including the second information in the first information; and sending response information for the uplink request information, the response information including the third information in the first information.

[0444] In one possible implementation, the response information is carried in a MAC PDU used to respond to random access.

[0445] In one possible implementation, the MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes first information or third information.

[0446] In one possible implementation, the MAC PDU includes a payload portion, which includes first information or third information when the value of the reserved bits in the payload portion is a first value.

[0447] In one possible implementation, the MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first RNTI, the payload portion includes first information or third information. The first RNTI is a system information RNTI or the RNTI of the first SIB.

[0448] In one possible implementation, the MAC PDU includes a payload portion, which includes either first or third information when the uplink authorization value in the payload portion is a second value.

[0449] In one possible implementation, when the control channel corresponding to the response information is scrambled by a first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

[0450] In one possible implementation, the transceiver unit 1801 is specifically used to: send a second message, the second message including the first information.

[0451] In one possible implementation, the transceiver unit 1801 is specifically used for: sending a first message, the first message including the second information in the first information; and sending a second message, the second message including the third information in the first information.

[0452] In one possible implementation, the second message includes either DCI or MAC CE.

[0453] In one possible implementation, the transceiver unit 1801 is further configured to receive uplink request information, which is used to request the transmission of the first SIB and is carried in message 1 during the random access process.

[0454] In one possible implementation, the transceiver unit 1801 is specifically used to: send message 4 during the random access process, message 4 including first information.

[0455] In one possible implementation, the transceiver unit 1801 is specifically used for: sending a first message, the first message including the second information in the first information; and sending message 4 in the random access process, message 4 including the third information in the first information.

[0456] In one possible implementation, message 4 carries a MAC CE. When the control channel corresponding to message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

[0457] In one possible implementation, the transceiver unit 1801 is further configured to: receive uplink request information, the uplink request information being used to request the transmission of the first SIB, the uplink request information being carried in message 3 during the random access process.

[0458] In one possible implementation, the first message also includes a first RNTI, which is used to control the channel corresponding to the response information of the descrambling uplink request information. The first RNTI is either the RNTI of the first SIB or the system information RNTI.

[0459] In one possible implementation, the first SIB includes SIB1.

[0460] The SIB transmission device 1800 provided in this embodiment is used to implement the technical solution of the network device in the aforementioned method embodiment. Its implementation principle and technical effect are similar, and will not be described again here.

[0461] Figure 19 is a schematic diagram of the structure of the terminal device provided in the embodiment of this application. As shown in Figure 19, the terminal device 1900 includes: a processor 1901 and a memory 1902; the memory 1902 stores computer execution instructions; the processor 1901 executes the computer execution instructions stored in the memory 1902, so that the terminal device executes the corresponding technical solutions in the aforementioned method embodiments. The implementation principle and technical effect are similar, and will not be described again here.

[0462] Figure 20 is a schematic diagram of the structure of a network device provided in an embodiment of this application. As shown in Figure 20, the network device 2000 includes: a processor 2001 and a memory 2002; the memory 2002 stores computer execution instructions; the processor 2001 executes the computer execution instructions stored in the memory 2002, causing the network device to execute the corresponding technical solutions in the aforementioned method embodiments. The implementation principle and technical effects are similar, and will not be described again here.

[0463] This application provides a chip. The chip includes a processor, which is used to call a computer program in memory to execute the technical solutions in the above embodiments. Its implementation principle and technical effects are similar to those in the related embodiments described above, and will not be repeated here.

[0464] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method steps executed by the network device as described in the foregoing method embodiments.

[0465] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method steps executed by the terminal device as described in the foregoing method embodiments.

[0466] This application provides a computer program product, including a computer program that, when run, causes the computer to perform the method steps performed by the network device as described in the foregoing method embodiments.

[0467] This application provides a computer program product, including a computer program that, when run, causes a computer to perform the method steps executed by a terminal device as described in the foregoing method embodiments.

[0468] The methods described in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. If implemented in software, the functionality can be stored as one or more instructions or code on or transmitted on a computer-readable medium. A computer-readable medium can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. A storage medium can be any target medium accessible by a computer.

[0469] In one possible implementation, a computer-readable medium may include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage or other magnetic storage devices, or any other medium targeted to carry or to store the required program code in the form of instructions or data structures, and accessible by a computer. Furthermore, any connection is appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. As used herein, disks and optical discs include optical discs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs optically reproduce data using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0470] This application describes embodiments of methods and apparatus (systems) with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processing unit of a general-purpose computer, special-purpose computer, embedded processor, or other programmable device to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing device, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0471] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. A SIB transmission method, applied to a terminal device, characterized in that, The method includes: Receive first information, the first information being used to indicate the transmission information of a first system information block (SIB), the first SIB being a request-based SIB; Based on the first information, the first SIB is received.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: first instruction information, second instruction information, and third instruction information; Wherein, the first indication information at least indicates the transmission duration of the first SIB, the second indication information at least indicates the transmission timing of the first SIB, and the third indication information at least indicates the transmission method of the first SIB.

3. The method according to claim 2, characterized in that, The first indication information includes any one of the following: a first coefficient, the start and end transmission times of the first SIB, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; The first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the change period of system information, or a multiple of the window length of the random access response (RAR), and the first coefficient is a positive integer; The first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

4. The method according to claim 2, characterized in that, The second indication information includes the transmission time or time offset value of the first SIB; The time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

5. The method according to claim 2, characterized in that, The third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

6. The method according to any one of claims 1-5, characterized in that, The receiving of the first information includes: Receive a first message, which includes the first information.

7. The method according to any one of claims 1-5, characterized in that, The receiving of the first information includes: The response information received from the uplink request includes the first information.

8. The method according to any one of claims 2-5, characterized in that, The first information includes the second information and the third information. The second information includes at least one of the following: the first indication information, the second indication information, and the third indication information. The third information includes at least one of the first information other than the second information.

9. The method according to claim 8, characterized in that, The receiving of the first information includes: Receive a first message, wherein the first message includes the second information in the first information; The response information received from the uplink request information includes the third information from the first information.

10. The method according to claim 7 or 9, characterized in that, The response information is carried in the Media Access Control (MAC) Protocol Data Unit (PDU) used to respond to random access.

11. The method according to claim 10, characterized in that, The MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes either the first information or the third information.

12. The method according to claim 10, characterized in that, The MAC PDU includes a payload portion. When the value of the reserved bit in the payload portion is a first value, the payload portion includes either the first information or the third information.

13. The method according to claim 10, characterized in that, The MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first radio network temporary identifier (RNTI), the payload portion includes either the first information or the third information. The first RNTI is either a system information RNTI or the RNTI of the first SIB.

14. The method according to claim 10, characterized in that, The MAC PDU includes a payload portion. When the uplink authorization value in the payload portion is a second value, the payload portion includes either the first information or the third information.

15. The method according to claim 10, characterized in that, When the control channel corresponding to the response information is scrambled by the first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

16. The method according to any one of claims 1-5, characterized in that, The receiving of the first information includes: Receive a second message, which includes the first information.

17. The method according to claim 8, characterized in that, The receiving of the first information includes: Receive a first message, wherein the first message includes the second information in the first information; Receive a second message, which includes the third information from the first message.

18. The method according to claim 16 or 17, characterized in that, The second message includes downlink control information (DCI) or MAC control unit (CE).

19. The method according to any one of claims 6-18, characterized in that, The method further includes: The uplink request information is sent, which is used to request the transmission of the first SIB. The uplink request information is carried in message 1 during the random access procedure.

20. The method according to any one of claims 1-5, characterized in that, The receiving of the first information includes: Message 4 is received during the random access process, and message 4 includes the first information.

21. The method according to claim 8, characterized in that, The receiving of the first information includes: Receive a first message, wherein the first message includes the second information in the first information; Message 4 is received during the random access process, and message 4 includes the third information in the first information.

22. The method according to claim 20 or 21, characterized in that, Message 4 carries a MAC CE. When the control channel corresponding to Message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

23. The method according to claim 6, 20, 21 or 22, characterized in that, The method further includes: Send uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 3 during the random access procedure.

24. The method according to claim 6, 9, 17 or 21, characterized in that, The first message also includes a first RNTI, which is used to descramble the control channel corresponding to the response information of the uplink request information. The first RNTI is the RNTI of the first SIB or the system information RNTI.

25. The method according to any one of claims 1-24, characterized in that, The first SIB includes SIB1.

26. A SIB transmission method, applied to network equipment, characterized in that, The method includes: Send first information, which is used to indicate the sending information of the first system information block (SIB), wherein the first SIB is a request-based SIB; Based on the first information, the first SIB is sent.

27. The method according to claim 26, characterized in that, The first information includes at least one of the following: first instruction information, second instruction information, and third instruction information; Wherein, the first indication information at least indicates the transmission duration of the first SIB, the second indication information at least indicates the transmission timing of the first SIB, and the third indication information at least indicates the transmission method of the first SIB.

28. The method according to claim 27, characterized in that, The first indication information includes any one of the following: a first coefficient, the start and end transmission times of the first SIB, the number of time slots, the number of radio frames, the number of radio subframes, and the first window length; The first coefficient is a multiple of the transmission period of the first SIB, or a multiple of the change period of system information, or a multiple of the window length of the random access response (RAR), and the first coefficient is a positive integer; The first window length is the RAR window length, or the first window length is the remaining length of the RAR window after the RAR is received.

29. The method according to claim 27, characterized in that, The second indication information includes the transmission time or time offset value of the first SIB; The time offset value is the time interval between the transmission time of the first SIB and the transmission time of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the reception time of the response information of the uplink request information, or the time offset value is the time interval between the transmission time of the first SIB and the end time of the RAR window.

30. The method according to claim 27, characterized in that, The third indication information includes at least one of the following: number of transmissions, second window length, and transmission period of the first SIB.

31. The method according to any one of claims 26-30, characterized in that, The sending of the first information includes: Send a first message, which includes the first information.

32. The method according to any one of claims 26-30, characterized in that, The sending of the first information includes: The response information for sending the uplink request information includes the first information.

33. The method according to any one of claims 27-30, characterized in that, The first information includes the second information and the third information. The second information includes at least one of the following: the first indication information, the second indication information, and the third indication information. The third information includes at least one of the first information other than the second information.

34. The method according to claim 33, characterized in that, The sending of the first information includes: Send a first message, the first message including the second information in the first information; The response information for sending the uplink request information includes the third information from the first information.

35. The method according to claim 32 or 34, characterized in that, The response information is carried in the Media Access Control (MAC) Protocol Data Unit (PDU) used to respond to random access.

36. The method according to claim 35, characterized in that, The MAC PDU includes a header and a payload portion. When the random access preamble identifier in the header corresponds to the random access preamble requesting the first SIB, the payload portion includes either the first information or the third information.

37. The method according to claim 35, characterized in that, The MAC PDU includes a payload portion. When the value of the reserved bit in the payload portion is a first value, the payload portion includes either the first information or the third information.

38. The method according to claim 35, characterized in that, The MAC PDU includes a payload portion. When the temporary cell radio network temporary identifier in the payload portion is a first radio network temporary identifier (RNTI), the payload portion includes either the first information or the third information. The first RNTI is either a system information RNTI or the RNTI of the first SIB.

39. The method according to claim 35, characterized in that, The MAC PDU includes a payload portion. When the uplink authorization value in the payload portion is a second value, the payload portion includes either the first information or the third information.

40. The method according to claim 35, characterized in that, When the control channel corresponding to the response information is scrambled by the first RNTI, and the first RNTI is the RNTI of the first SIB or the system information RNTI, the payload portion of the MAC PDU includes the first information or the third information.

41. The method according to any one of claims 26-30, characterized in that, The sending of the first information includes: Send a second message, which includes the first information.

42. The method according to claim 33, characterized in that, The sending of the first information includes: Send a first message, the first message including the second information in the first information; Send a second message, which includes the third information from the first message.

43. The method according to claim 41 or 42, characterized in that, The second message includes downlink control information (DCI) or MAC control unit (CE).

44. The method according to any one of claims 31-43, characterized in that, The method further includes: The uplink request information is received, which is used to request the transmission of the first SIB. The uplink request information is carried in message 1 during the random access procedure.

45. The method according to any one of claims 26-30, characterized in that, The sending of the first information includes: Send message 4 during the random access process, wherein message 4 includes the first information.

46. ​​The method according to claim 33, characterized in that, The sending of the first information includes: Send a first message, the first message including the second information in the first information; Send message 4 during the random access process, wherein message 4 includes the third information in the first information.

47. The method according to claim 45 or 46, characterized in that, Message 4 carries a MAC CE. When the control channel corresponding to Message 4 is scrambled by a first RNTI, where the first RNTI is the RNTI of the first SIB or the system information RNTI, and the logical channel identifier in the MAC CE is a third value, the MAC CE includes either the first information or the third information.

48. The method according to claim 31, 45, 46 or 47, characterized in that, The method further includes: Receive uplink request information, which is used to request the transmission of the first SIB, and the uplink request information is carried in message 3 during the random access procedure.

49. The method according to claim 31, 34, 42 or 46, characterized in that, The first message also includes a first RNTI, which is used to descramble the control channel corresponding to the response information of the uplink request information. The first RNTI is the RNTI of the first SIB or the system information RNTI.

50. The method according to any one of claims 26-49, characterized in that, The first SIB includes SIB1.

51. A terminal device configured to transmit SIBs in a wireless communication system, characterized in that, The terminal device includes: one or more processors and memory; The memory is coupled to the one or more processors, the memory being used to store computer program code, the computer program code including computer instructions, the one or more processors invoking the computer instructions to cause the terminal device to perform the method as described in any one of claims 1-25.

52. A network device configured to transmit SIBs in a wireless communication system, characterized in that, The network device includes: one or more processors and memory; The memory is coupled to the one or more processors, the memory being used to store computer program code, the computer program code including computer instructions, the one or more processors invoking the computer instructions to cause the network device to perform the method as described in any one of claims 26-50.

53. A transmission device for SIBs, configured to transmit SIBs in a wireless communication system, characterized in that, The device includes: The transceiver unit is used to receive first information, which is used to indicate the transmission information of the first SIB, and the first SIB is a request-based SIB; The transceiver unit is further configured to receive the first SIB based on the first information.

54. A transmission device for SIBs, configured to transmit SIBs in a wireless communication system, characterized in that, The device includes: The transceiver unit is used to send first information, which is used to indicate the transmission information of the first SIB, and the first SIB is a request-based SIB; The transceiver unit is also used to transmit the first SIB.

55. A chip system, characterized in that, The chip system is applied to an electronic device, the chip system including one or more processors, the one or more processors being used to invoke computer instructions to cause the electronic device to perform the method as described in any one of claims 1-50.

56. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes computer instructions that, when executed on an electronic device, cause the electronic device to perform the method as described in any one of claims 1-50.

57. A computer program product, characterized in that, The computer program product includes computer program code that, when run on an electronic device, causes the electronic device to perform the method as described in any one of claims 1-50.

58. A communication system, characterized in that: The communication system includes a terminal device and a network device, wherein the terminal device is used to perform the method of any one of claims 1-25, and the network device is used to perform the method of any one of claims 26-50.

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