System information transmission and reception method, device, and storage medium

Abstract

The present disclosure discloses a system information transmission method, a system information reception method, a device, and a storage medium, including a step of a network side transmitting first system information to a terminal, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, an effective area of ​​the second system information, an effective time of the second system information, reception condition information of the second system information, a modulation method of the second system information, a subcarrier interval for transmitting the second system information, a transmission period of the second system information, and a repetition number of times of transmitting the second system information; and a step of the network side transmitting the second system information group to the terminal based on the first information. The terminal receives the second system information group transmitted from the network side based on the first information.

Description

Cross-Citation of Related Applications

[0001] This application claims priority from Chinese Patent Application No. 202210114405.2, filed in China on January 30, 2022, the entire contents of which are incorporated herein by reference. [Technical Field]

[0002] The present disclosure relates to the field of communications technology, and in particular to a system information transmitting method, a system information receiving method and device, and a storage medium. [Background technology]

[0003] In the related art, a system information block (SIB) 1 transmits configuration information of positioning system information, and the configuration information indicates a transmission cycle, a mapping method, etc. of the positioning system information.

[0004] A drawback of the related art is that transmitting positioning system information using a general system information modulation scheme and a number of Multiple Input Multiple Output (MIMO) streams results in large overhead. Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure provides a system information transmission and reception method, a device, and a storage medium, thereby solving the problem of large overhead when transmitting positioning system information using a general system information modulation scheme and number of MIMO streams. [Means for solving the problem]

[0006] The present disclosure provides the following technical solutions:

[0007] 1. A system information transmission method, comprising: a step of transmitting first system information from a network side to a terminal, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission cycle of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of the second system information; The network side sends a second system information group to the terminal based on the first information.

[0008] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0009] During implementation, before the network side sends the first system information to the terminal, The method further includes receiving a system information request message or terminal auxiliary information sent from the terminal.

[0010] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0011] During implementation, The method further includes the step of the network side setting the first information based on the system information request message or the terminal auxiliary information.

[0012] During implementation, the step of setting the first information based on the system information request message or the terminal auxiliary information includes: setting system information requested by the transmitting terminal; setting the MCS to the lowest MCS among a plurality of MCSs transmitted by a plurality of terminals; setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; setting a subcarrier spacing for transmitting second system information requested for the terminal; setting a transmission period for transmitting the second system information requested for the terminal; setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition count for transmitting the second system information requested for the terminal.

[0013] A system information receiving method, comprising: a step of receiving, by the terminal, first system information transmitted from a network side, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission cycle of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of the second system information; and receiving, by the terminal, a second system information group transmitted from the network side based on the first information.

[0014] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0015] During implementation, receiving second system information by the terminal when the RSRP measured by the terminal exceeds the RSRP threshold; and / or The method further includes the step of: if the TA of the terminal is less than the TA threshold, the terminal receiving the second system information.

[0016] During implementation, before the terminal receives the first system information transmitted from the network side, The method further includes the step of the terminal sending a system information request message or terminal auxiliary information to the network side.

[0017] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0018] During implementation, after receiving a system information request message or terminal auxiliary information from the network side, The method further includes receiving first information of a second system information group sent from the network side, and if the first system information is not received, entering a connection state and sending a system information request message or terminal auxiliary information to the network side.

[0019] During implementation, after receiving first system information sent from the network side, The method further includes determining whether to receive the second system information based on reception condition information of the second system information in the first information.

[0020] A network-side device, Reading the program in memory, a process for transmitting first system information to a terminal, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information; a number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information transmission; a processor for executing a process for transmitting a second system information group to the terminal based on the first information; a transceiver for transmitting and receiving data under the control of a processor; Network side device.

[0021] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0022] During implementation, before transmitting the first system information to the terminal, The method further includes a process for receiving a system information request message or terminal auxiliary information sent from the terminal.

[0023] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0024] During implementation, The method further includes a process of setting the first information based on the system information request message or the terminal auxiliary information.

[0025] During implementation, the process of setting the first information based on the system information request message or the terminal auxiliary information includes: A process of setting system information requested by the transmitting terminal; A process of setting the MCS to the lowest MCS among multiple MCSs transmitted by multiple terminals; a process of setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; a step of setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; a process of setting a subcarrier spacing for transmitting second system information requested for the terminal; a process for setting a transmission period for transmitting the second system information requested for the terminal; a process for setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition number for transmitting the second system information requested for the terminal.

[0026] A network-side device, a first transmission module configured to transmit first system information to a terminal, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information; a number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; and a second sending module for sending a second system information group to the terminal based on the first information.

[0027] During implementation, the first sending module further sends reception condition information of the second system information, which includes an RSRP threshold and / or a TA threshold.

[0028] During implementation, the receiving module receives a system information request message or terminal auxiliary information sent from the terminal before sending the first system information to the terminal.

[0029] During implementation, the receiving module: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; and a transmission repetition number for transmitting the second system information requested by the terminal, or a combination thereof.

[0030] During implementation, the first sending module further sets the first information based on the system information request message or the terminal auxiliary information.

[0031] During implementation, the first sending module further comprises, when setting the first information based on the system information request message or the terminal auxiliary information: setting system information requested by the transmitting terminal; setting the MCS to the lowest MCS among a plurality of MCSs transmitted by a plurality of terminals; setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; setting a subcarrier spacing for transmitting second system information requested for the terminal; setting a transmission period for transmitting the second system information requested for the terminal; setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition count for transmitting the second system information requested for the terminal.

[0032] A terminal, Reading the program in memory, a process for receiving first system information transmitted from a network side, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information; the number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier interval for transmitting the second system information; a transmission period of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; a processor that executes a process for receiving a second system information group transmitted from a network side based on the first information; a transceiver for transmitting and receiving data under the control of the processor.

[0033] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0034] During implementation, A process in which the terminal receives second system information when the RSRP measured by the terminal exceeds the RSRP threshold; and / or If the TA of the terminal is less than the TA threshold, the terminal receives the second system information.

[0035] During implementation, before receiving the first system information sent from the network side, The method further includes sending a system information request message or terminal auxiliary information to the network side.

[0036] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0037] During implementation, after receiving a system information request message or terminal auxiliary information from the network side, The method further includes the step of receiving first information of a second system information group sent from a network side, and entering a connected state if the first system information is not received, and sending a system information request message or terminal auxiliary information to the network side.

[0038] During implementation, after receiving first system information sent from the network side, The method further includes a process of determining whether to receive the second system information based on reception condition information of the second system information in the first information.

[0039] A terminal, a first receiving module that receives first system information transmitted from a network side, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information; a number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; and a second receiving module for receiving a second system information group sent from the network side based on the first information.

[0040] During implementation, the first receiving module further comprises: The first information includes one or a combination of the following information: an MCS index indicating the modulation and coding scheme of the PDCCH or PDSCH of the second system information, a modulation scheme of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and the number of repetitions of transmitting the second system information.

[0041] During implementation, the first receiving module further receives reception condition information of the second system information, which includes an RSRP threshold and / or a TA threshold.

[0042] During implementation, the second receiving module further receives second system information when the RSRP measured by the terminal exceeds the RSRP threshold; and / or If the TA of the terminal is less than the TA threshold, the terminal receives the second system information.

[0043] During implementation, The terminal further includes a sending module for sending a system information request message or terminal auxiliary information to the network side before receiving the first system information sent from the network side.

[0044] During implementation, the sending module further comprises: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; and the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0045] During implementation, the sending module further receives a system information request message or terminal auxiliary information from the network side, and then receives first information of a second system information group sent from the network side; if the first system information is not received, enters a connection state and sends a system information request message or terminal auxiliary information to the network side.

[0046] During implementation, the second receiving module further determines whether to receive the second system information after receiving the first system information transmitted from the network side based on the reception condition information of the second system information in the first information.

[0047] A computer-readable storage medium having a computer program stored therein, the computer program realizing the system information transmission method and / or the system information reception method when executed by a processor. [Effects of the Invention]

[0048] The beneficial effects of the present disclosure are as follows: In the technical solution provided by the embodiments of the present disclosure, the first information includes information such as a CCE aggregation level, the number of MIMO streams, an effective area, an effective time, and reception conditions, and therefore the CCE and the number of MIMO streams are used to transmit the second system information. Because the second system information, such as positioning assistance information, has a large amount of data, setting an appropriate CCE aggregation level can ensure reasonable coverage of the second system information. Setting an appropriate number of MIMO streams can determine an adaptive transmission delay. The effective area, effective time, and reception conditions ensure that the second system information is valid within a specific geographical space and time. If the terminal leaves the specific geographical space or exceeds the effective time, the terminal needs to re-acquire updated second system information, thereby reducing resource overhead. The second system information can carry a large amount of data using higher-order modulation than the first system information. Due to reception conditions, the second system information can only be received when the terminal is located in the center of the cell and has relatively good coverage, but reception may fail if the terminal is located at the edge of the cell. Therefore, terminals at the cell edge do not need to receive the second system information, thereby saving terminal resources.

[0049] Furthermore, by repeatedly transmitting the system information, the terminals can receive and jointly decode it multiple times to achieve better coverage. It may be adjusted based on the actual channel conditions, and can be adjusted lower to save resources.

[0050] Furthermore, the reception conditions include an RSRP threshold and / or a TA (Timing Advance) threshold, and since the second system information carries a larger amount of data using a higher-order modulation than the first system information, the second system information can only be received when the terminal is located at the center of the cell and has relatively good coverage, and reception may fail if the terminal is located at the edge of the cell; therefore, terminals located at the cell edge do not need to receive the second system information. [Brief explanation of the drawings]

[0051] The drawings described herein are intended to further the understanding of the present disclosure, are a part of the present disclosure, and the exemplary embodiments of the present disclosure and the description thereof are used to interpret the present disclosure and are not intended to unduly limit the present disclosure. [Figure 1] 1 is a flowchart illustrating an implementation of a network-side system information transmission method in an embodiment of the present disclosure. [Figure 2] 1 is a flowchart illustrating an implementation of a terminal-side system information receiving method according to an embodiment of the present disclosure. [Figure 3] FIG. 2 is a structural schematic diagram of a network-side device in an embodiment of the present disclosure; [Figure 4] FIG. 2 is a structural schematic diagram of a terminal in an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0052] The inventors have noticed the following during the course of their invention.

[0053] In the embodiments and explanations, the positioning system information and the first information thereof are mainly used as examples, and since it is common for both the positioning system information and the normal system information to use the same modulation and coding scheme and the same number of MIMO streams, the positioning system information and the first information thereof are used as examples. However, other similar messages and first information may also be used. In fact, when transmitting using the normal system information modulation scheme and the number of MIMO streams, overhead increases, and even messages with very large positioning system information exceeding the maximum number of bits of the system information may be used. The positioning system information and the first information thereof are used only to teach those skilled in the art how to implement the present disclosure, but this does not mean that only the positioning system information and the first information thereof can be used. Appropriate messages may be determined according to actual needs during implementation.

[0054] In related art, both positioning system information and ordinary system information use the same modulation and coding scheme and the same number of MIMO streams. However, with the development of positioning technology, the size of positioning system information increases. If the same modulation scheme and number of MIMO streams as ordinary system information are used for transmission, the overhead will increase, and the very large positioning system information may exceed the limit of the maximum number of system information bits.

[0055] Compared with ordinary system information, positioning system information has the following different characteristics: Generally, it is necessary to ensure that system information can be received by all terminals in a cell at any time and in any place.

[0056] The positioning system information, as auxiliary information for positioning technology, can continue to be used within a valid period after being received, and does not need to be received repeatedly.

[0057] From the above analysis, the positioning system information has the characteristic that it has a large amount of data, but does not need to be receivable by the terminal at any time and anywhere, and therefore the positioning system information may be set to a higher modulation order and / or a larger number of MIMO streams.

[0058] Therefore, the embodiments of the present disclosure provide a solution for transmitting and receiving system information, and the following describes specific embodiments of the present disclosure in conjunction with the drawings.

[0059] In the course of the description, the implementation of the terminal and the network side will be described first, and then an example of combining the two will be provided to better understand the implementation of the solutions provided in the embodiments of the present disclosure. This description method does not necessarily mean that the two must be combined or implemented separately. In fact, when the terminal and the network side are implemented separately, they solve their own problems, and when they are used in combination, better technical effects can be achieved.

[0060] FIG. 1 is a flowchart showing an implementation of a network-side system information transmission method, which includes the following steps 101 to 102, as shown in the figure.

[0061] Step 101: The network side transmits first system information to the terminal, where the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information; the number of MIMO streams of the second system information; a validity region of the second system information; a validity time of the second system information; reception condition information of the second system information; an MCS index indicating the modulation and coding method of the PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission period of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count for transmitting the second system information.

[0062] Step 102: the network side sends a second system information group to the terminal based on the first information.

[0063] 2 is a flowchart showing a terminal-side system information receiving method, which includes the following steps 201 to 202.

[0064] In step 201, the terminal receives first system information transmitted from the network side, where the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information; the number of MIMO streams of the second system information; a validity region of the second system information; a validity time of the second system information; reception condition information of the second system information; an MCS index indicating the modulation and coding method of the PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission period of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count for transmitting the second system information.

[0065] Step 202: the terminal receives a second system information group sent from the network side according to the first information.

[0066] Specifically, the terminal receives first system information (e.g., general system information) transmitted from the network side. The first system information includes first information of a second system information group, and the second group system information includes at least one second system information (e.g., positioning system information). That is, one second system information group may include multiple pieces of second system information.

[0067] The control information aggregation level refers to the aggregation level of the PDCCH of the second system information, that is, the CCE aggregation level.

[0068] The first information may be shared by some of the system information in the second group of system information, or may be independently applied to any one of the system information in the second group of system information. In practice, the first information may be named as configuration information, scheduling information, or other names, but no matter how it is named, it does not affect the implementation of this solution.

[0069] Specifically, the network side transmits at least one set of parameters. For example, if the network side transmits one modulation order, this modulation order is applied to the second system information, and if the network side transmits two modulation orders, these modulation orders are applied to the first system information and the second system information, respectively. Due to the large data volume of the positioning system information, the positioning system information may use a modulation order, number of MIMO streams, etc. different from those of the first system information. Therefore, special parameters may be set for the second system information, and at the same time, the first system information may set parameters or use default parameters.

[0070] The first information of the system information may include one or a combination of the following information:

[0071] 1. MCS index, i.e., MCS identifier. The MCS (Modulation and Coding Scheme) indicates the modulation and coding scheme of the physical downlink control channel (PDCCH) or physical downlink shared channel (PDSCH) of the second system information. Different MCSs, such as MCS-1 and MCS-5, represent different modulation and coding schemes.

[0072] 2. Modulation method, i.e., the modulation method of the system information, which can be PDCCH or PDSCH, such as MCS-1, MCS-3, etc., such as Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 16-quadrature Amplitude Modulation (QAM), 64QAM, 256QAM, 1024QAM, etc.

[0073] 3. Control Channel Element (CCE) aggregation level. The CCE aggregation level refers to the PDCCH aggregation level of the system information. The CCE aggregation level affects the coverage of the system information, and the aggregation level can be adjusted based on the target coverage. Since the data volume of the second system information is large, setting an appropriate CCE aggregation level can reduce resource overhead.

[0074] 4. Number of MIMO streams, i.e., the number of MIMO streams in the system information.

[0075] 5, subcarrier spacing.

[0076] 6. Transmission period: The period refers to the transmission period of the system information.

[0077] 7. Encryption information, i.e., whether the system information is encrypted or not, and what encryption method or encryption algorithm is used.

[0078] 8. Encryption public key: The public key is used by the terminal to decrypt the second system information.

[0079] 9. Repetition number, i.e., the number of times the system information is repeatedly transmitted. By repeatedly transmitting the system information, the terminal can receive and jointly decode it multiple times to achieve better coverage. It can be adjusted based on the actual channel conditions, and can be adjusted lower to save resources.

[0080] 10. Validity area: That is, the area in which the system information is valid. The validity area may be at least one of a cell identifier, a tracking area (TA) identifier, a geographic area identifier, or an altitude or height identifier. Ensures that the second system information (i.e., positioning system information) is valid within a specific geographical space, and when the terminal leaves the geographical space, it needs to reacquire updated second system information.

[0081] 11. Validity period: The system information is valid within the validity period.

[0082] 12. Reception condition information. The "reception condition information" refers to the fact that a terminal can receive the second system information only when the condition is satisfied, and that if the condition is not satisfied, the terminal does not need to receive the second system information. The reception condition includes at least one of a Reference Signal Received Power (RSRP) threshold and a Timing Advance (TA) threshold. If the reception condition is an RSRP threshold, the terminal can receive the second system information only when the RSRP measured by the terminal exceeds the threshold. If the reception condition is a TA, the terminal can receive the second system information only when the TA of the terminal is smaller than the TA threshold. Since the second system information carries a larger amount of data using higher-order modulation than the first system information, the terminal can receive the second system information only when the terminal is located at the center of the cell and has relatively good coverage, and reception may fail if the terminal is located at the edge of the cell. Therefore, a terminal located at the edge of the cell does not need to receive the second system information. That is, during implementation, after the terminal receives the first system information transmitted from the network side, The method may further include determining whether to receive the second system information based on reception condition information of the second system information in the first information.

[0083] In implementation, when the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold, receiving second system information by the terminal when the RSRP measured by the terminal exceeds the RSRP threshold; and / or The method may further include the step of: if the TA of the terminal is smaller than the TA threshold, the terminal receiving the second system information.

[0084] After receiving the above information 1 to 9, the terminal can receive the system information using the above settings.

[0085] After receiving the information 10 and 11, the terminal can determine whether the currently stored second system information is valid and whether it is necessary to receive the second system information again. That is, as long as the second system information stored in the terminal is still valid, the terminal does not need to receive it repeatedly.

[0086] For example, the second system information group includes three pieces of second system information, A, B, and C. The first information of the second system information carried by the first system information is as follows: The modulation order of system information A is BPSK, and the number of MIMO streams is two. The modulation order of system information B is 16QAM, and the number of MIMO streams is four. The modulation order of system information C is 64QAM, and the number of MIMO streams is 8.

[0087] After receiving the first information, the terminal uses the first information to receive the system information A / B / C, respectively.

[0088] During implementation, before the terminal receives the first system information transmitted from the network side, The method further includes the step of the terminal sending a system information request message or terminal auxiliary information to the network side.

[0089] In response to this, before the network side transmits the first system information to the terminal, The method further includes receiving a system information request message or terminal auxiliary information sent from the terminal.

[0090] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0091] During implementation, The method may further include the step of the network side setting the first information based on the system information request message or the terminal auxiliary information.

[0092] In specific implementation, the step of setting the first information according to the system information request message or the terminal auxiliary information includes: setting system information requested by the transmitting terminal; setting the MCS to the lowest MCS among a plurality of MCSs transmitted by a plurality of terminals; setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; setting a subcarrier spacing for transmitting second system information requested for the terminal; setting a transmission period for transmitting the second system information requested for the terminal; setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition count for transmitting the second system information requested for the terminal.

[0093] Specifically, the terminal may send a system information request message, referred to as terminal auxiliary information, to the network side, where the system information request message is used to request one or more second system information items of a second system information group, or the terminal auxiliary information is used to assist the network side in transmitting the system information.

[0094] In response, the network side sets the first information based on the system information request message or the terminal auxiliary information.

[0095] The system information request message: The terminal requests specified system information; MCS request, in which the terminal requests a specific MCS to the network side or transmits the maximum MCS, where requesting a specific MCS refers to requesting the network side to use an already specified MCS to modulate the PDCCH or PDSCH, and transmitting the maximum MCS refers to the terminal transmitting the maximum MCS of the terminal under the current channel conditions to the network side, where the network side receives MCS requests transmitted from multiple terminals and modulates the PDCCH or PDSCH using the lowest MCS, thereby ensuring accurate decoding for as many terminals as possible; The CCE aggregation level request can assist the network side to select an appropriate CCE aggregation level to transmit the second system information, and the CCE aggregation level transmitted by the terminal may be the CCE aggregation level that it intends to transmit, or the lowest CCE aggregation level request that the terminal can correctly decode. The higher the CCE aggregation level, the better the PDCCH coverage. A terminal with a good signal will request a low CCE, and a terminal with a poor signal will request a high CCE. After receiving the CCE aggregation level, the network side determines to transmit the second system information using a specific CCE aggregation level. In another case, the network side uses a high CCE aggregation level to ensure that both good and bad signals can be received by the terminal. a modulation order request, in which a terminal requests the network side to transmit system information with a specific modulation order, the modulation order may be the modulation order desired by the terminal or may be the maximum modulation order, i.e., it exceeds the maximum modulation order, and the terminal cannot accurately decode under the current channel condition; after receiving the requests from multiple terminals, the network side transmits using the lowest modulation order to ensure that all terminals can receive; or the network side selects an MCS corresponding to the modulation order, and the higher the modulation order, the more accurately a terminal with a good channel can demodulate, and the more accurately a terminal with a bad channel cannot demodulate; and requests the network side to transmit system information with a specified number of MIMO streams; requesting that system information be transmitted at a specific subcarrier spacing; requesting the transmission of system information at a specific period; Requesting that system information be sent using a specific encryption method; requesting that system information be repeated a specific number of times;

[0096] During implementation, after receiving a system information request message or terminal auxiliary information from the network side, The method further includes receiving first information of a second system information group sent from the network side, and if the first system information is not received, entering a connection state and sending a system information request message or terminal auxiliary information to the network side.

[0097] Specifically, after transmitting the system information request message, the terminal receives the first information of the second system information group transmitted from the network side, thereby determining whether the requested system information has started to be broadcast. If not, the terminal enters a connected state and sends a system information request message.

[0098] For example, the relationship between MCS and modulation order may be as follows: One MCS corresponds to one set of modulation termination and code rate.

[0099] The terminal may directly request a particular MCS or may request a particular modulation order.

[0100] If a specific modulation order is requested, it indicates that a set of MCSs corresponding to the modulation order are all applicable to the terminal; for example, the modulation order is 4, and the corresponding MCSs are 10-16.

[0101] [Table 1]

[0102] Based on the same inventive concept, the embodiments of the present disclosure further provide a network-side device, a terminal, and a computer-readable storage medium. The principles by which these devices solve problems are similar to the methods for transmitting and receiving system information. Therefore, for the implementation of these devices, please refer to the implementation of the methods, and detailed descriptions of the overlapping parts will be omitted.

[0103] When implementing the technical solutions provided by the embodiments of the present disclosure, they can be implemented in the following manner.

[0104] Figure 3 shows the structure of a network-side device. As shown in the figure, the device: Reading the program in memory 320, a process for transmitting first system information to a terminal, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information; a number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information transmission; a processor 300 for executing a process of transmitting a second system information group to the terminal based on the first information; and a transceiver 310 for transmitting and receiving data under the control of the processor 300.

[0105] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0106] During implementation, before transmitting the first system information to the terminal, The method further includes a process for receiving a system information request message or terminal auxiliary information sent from the terminal.

[0107] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0108] During implementation, The method further includes a process of setting the first information based on the system information request message or the terminal auxiliary information.

[0109] During implementation, the process of setting the first information based on the system information request message or the terminal auxiliary information includes: A process of setting system information requested by the transmitting terminal; A process of setting the MCS to the lowest MCS among multiple MCSs transmitted by multiple terminals; a process of setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; a step of setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; a process of setting a subcarrier spacing for transmitting second system information requested for the terminal; a process for setting a transmission period for transmitting the second system information requested for the terminal; a process for setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition number for transmitting the second system information requested for the terminal.

[0110] 3, the bus architecture may include any number of interconnected buses and bridges, specifically connecting together various circuits of one or more processors, such as processor 300, and memory, such as memory 320. The bus architecture may also connect together various other circuits, such as peripherals, voltage regulators, power management circuits, etc., all of which are well known in the art and therefore will not be described in detail herein. The bus interface provides an interface. The transceiver 310 may be multiple devices, i.e., includes a transmitter and a receiver, providing a unit for communicating with a transmission medium and various other devices. The processor 300 is used to manage the bus architecture and normal processing, and the memory 320 is used to store data used by the processor 300 to perform operations.

[0111] An embodiment of the present disclosure further provides a network side device, the network side device comprising: a first transmission module for transmitting first system information to a terminal, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information, a number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of transmission of the second system information; and a second sending module for sending a second system information group to the terminal based on the first information.

[0112] During implementation, the first sending module further sends reception condition information of the second system information, which includes an RSRP threshold and / or a TA threshold.

[0113] During implementation, the receiving module receives a system information request message or terminal auxiliary information sent from the terminal before sending the first system information to the terminal.

[0114] During implementation, the receiving module: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; and a transmission repetition number for transmitting the second system information requested by the terminal, or a combination thereof, or terminal auxiliary information is received.

[0115] During implementation, the first sending module further sets the first information based on the system information request message or the terminal auxiliary information.

[0116] During implementation, the first sending module further comprises, when setting the first information based on the system information request message or the terminal auxiliary information: A process of setting system information requested by the transmitting terminal; A process of setting the MCS to the lowest MCS among multiple MCSs transmitted by multiple terminals; a process of setting a CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; a step of setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; a process of setting a subcarrier spacing for transmitting second system information requested for the terminal; a process for setting a transmission period for transmitting the second system information requested for the terminal; a process for setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition number for transmitting the second system information requested for the terminal.

[0117] For convenience of explanation, each part of the above-described apparatus is described as a module or unit based on its function. Of course, when implementing the present disclosure, the functions of each module or unit can be realized by the same or multiple pieces of software or hardware.

[0118] Figure 4 is a schematic diagram of the terminal structure. As shown in the figure, the terminal: Reading the program in memory 420 a process for receiving first system information transmitted from a network side, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information; the number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier interval for transmitting the second system information; a transmission period of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; a processor 400 for executing a process of receiving a second system information group sent from a network side based on the first information; and a transceiver 410 for transmitting and receiving data under the control of the processor 400.

[0119] In implementation, the reception condition information of the second system information includes an RSRP threshold and / or a TA threshold.

[0120] During implementation, receiving second system information when the RSRP measured by the terminal exceeds the RSRP threshold; and / or If the TA of the terminal is less than the TA threshold, receiving the second system information.

[0121] During implementation, before receiving the first system information sent from the network side, The method further includes sending a system information request message or terminal auxiliary information to the network side.

[0122] During implementation, the system information request message or the terminal auxiliary information is: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof.

[0123] During implementation, after receiving a system information request message or terminal auxiliary information from the network side, The method further includes the step of receiving first information of a second system information group sent from a network side, and entering a connected state if the first system information is not received, and sending a system information request message or terminal auxiliary information to the network side.

[0124] During implementation, after receiving first system information sent from the network side, The method further includes a process of determining whether to receive the second system information based on reception condition information of the second system information in the first information.

[0125] 4, the bus architecture may include any number of interconnected buses and bridges, specifically connecting various circuits of one or more processors, such as processor 400, and memory, such as memory 420. The bus architecture may also connect various other circuits, such as peripherals, voltage regulators, power management circuits, etc., all of which are well known in the art and therefore will not be described in detail herein. The bus interface provides an interface. The transceiver 410 may be multiple devices, i.e., includes a transmitter and a receiver, providing a transmission medium and a unit for communicating with various other devices. For different user equipment, the user interface 430 can connect required device interfaces externally or internally, including, but not limited to, a keyboard, monitor, speaker, microphone, joystick, etc.

[0126] The processor 400 is used to manage the bus architecture and normal processing, and the memory 420 is used to store data used by the processor 400 in performing operations.

[0127] An embodiment of the present disclosure provides a terminal, the terminal comprising: a first receiving module for receiving first system information transmitted from a network side, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of the second system information; and a second receiving module for receiving a second system information group sent from the network side based on the first information.

[0128] During implementation, the first receiving module further receives reception condition information of the second system information, which includes an RSRP threshold and / or a TA threshold.

[0129] During implementation, the second receiving module further receives second system information when the RSRP measured by the terminal exceeds the RSRP threshold; and / or If the TA of the terminal is less than the TA threshold, the terminal receives the second system information.

[0130] During implementation, The terminal further includes a sending module for sending a system information request message or terminal auxiliary information to the network side before receiving the first system information sent from the network side.

[0131] During implementation, the sending module further comprises: System information requested by the device, The MCS requested by the terminal, the CCE aggregation level requested by the terminal, Modulation order request requested by the terminal, a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting the second system information requested by the terminal; the encryption method of the second system information requested by the terminal; and a transmission repetition number for transmitting the second system information requested by the terminal, or a combination thereof, or transmits the terminal auxiliary information.

[0132] During implementation, the sending module further receives a system information request message or terminal auxiliary information from the network side, and then receives first information of a second system information group sent from the network side; if the first system information is not received, enters a connection state and sends a system information request message or terminal auxiliary information to the network side.

[0133] During implementation, the second receiving module further determines whether to receive the second system information after receiving the first system information transmitted from the network side based on the reception condition information of the second system information in the first information.

[0134] For convenience of explanation, each part of the above-described apparatus is described as a module or unit based on its function. Of course, when implementing the present disclosure, the functions of each module or unit can be realized by the same or multiple pieces of software or hardware.

[0135] In an embodiment of the present disclosure, a computer-readable storage medium is further provided, in which a computer program is stored, and when executed by a processor, the computer program realizes the above system information transmission method and / or the above system information reception method.

[0136] For specific implementation, please refer to the implementation of the network-side system information transmitting method and / or the terminal-side system information receiving method.

[0137] Based on the above, the technical solution provided by the embodiments of the present disclosure discloses a solution in which the terminal receives the first information of the second system information group sent from the network side, and a solution in which the terminal sends a system information request message to the network side.

[0138] In the related art, both the positioning system information and the ordinary system information use the same modulation and coding scheme and the same number of MIMO streams. However, with the development of positioning technology, the size of the positioning system information increases. If the same modulation scheme and number of MIMO streams as the ordinary system information are used for transmission, the overhead will become even larger, and the very large positioning system information may exceed the limit of the maximum number of system information bits.

[0139] Although the amount of information data in the positioning system is large, the terminal does not need to receive it anytime, anywhere. In response to this characteristic, the present solution achieves efficient transmission and reception of system information by setting the positioning system information to a higher modulation order and / or a larger number of MIMO streams.

[0140] As will be appreciated by those skilled in the art, the present disclosure may be provided as a method, a system, or a computer program product. Therefore, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. The present disclosure may also take the form of one or more computer program products embodied in a computer-usable storage medium (including, but not limited to, a magnetic disk memory, an optical memory, etc.) containing computer-usable program code.

[0141] The present disclosure has been described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. Each flow and / or block in the flowcharts and / or block diagrams, and combinations of flow steps and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, whereby the instructions executed by the processor of the computer or other programmable data processing device generate an apparatus that implements the function(s) specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0142] These computer program instructions may be stored in a computer-readable memory that directs a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture that includes an instruction apparatus that implements the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0143] These computer program instructions may be loaded into a computer or other programmable data processing device, which causes the computer or other programmable device to perform a series of operational steps to produce a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps to implement the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0144] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure also intends to include these modifications and variations.

Claims

1. 1. A system information transmission method, comprising: receiving a system information request message or terminal auxiliary information sent from a terminal; a step of transmitting first system information from a network side to the terminal, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information; a number of multiple-input multiple-output (MIMO) streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; a modulation and coding scheme index (MCS index) indicating a modulation and coding scheme of a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) of the second system information; a modulation scheme of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; The network side sends a second system information group to the terminal based on the first information. System information transmission method.

2. The reception condition information of the second system information includes at least one of a reference signal received power (RSRP) threshold and a timing advance (TA) threshold. The method of claim 1.

3. The system information request message or terminal auxiliary information is system information requested by the terminal; the MCS requested by the terminal; a control channel element (CCE) aggregation level requested by the terminal; a modulation order request requested by the terminal; a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting second system information requested by the terminal; an encryption method for the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof; The method of claim 1.

4. The method further includes: setting first information according to a system information request message or terminal auxiliary information; The method of claim 1.

5. The step of setting the first information based on the system information request message or the terminal auxiliary information includes: setting system information requested by the transmitting terminal; setting the MCS to the lowest MCS among a plurality of MCSs transmitted by a plurality of terminals; setting the CCE aggregation level to the highest CCE aggregation level among a plurality of CCE aggregation level requests transmitted by a plurality of terminals; setting a modulation order to the lowest modulation order among a plurality of modulation orders transmitted by a plurality of terminals; configuring a subcarrier spacing for transmitting second system information requested for the terminal; setting a transmission period for transmitting the second system information requested for the terminal; setting an encryption method of the requested second system information for the terminal; and setting a transmission repetition number for transmitting the second system information requested for the terminal. The method of claim 4.

6. The system information reception method is as follows: The terminal sends a system information request message or terminal auxiliary information to the network side; receiving, by the terminal, first system information transmitted from a network side, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for a PDCCH or a PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission cycle of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of transmission of the second system information; receiving, by the terminal, a second system information group transmitted from the network side based on the first information; System information reception method.

7. The reception condition information of the second system information includes at least one of an RSRP threshold and a TA threshold. The method of claim 6.

8. receiving second system information from the terminal when the RSRP measured by the terminal exceeds the RSRP threshold; and If the TA of the terminal is less than the TA threshold, the terminal receives the second system information. The method of claim 7.

9. The system information request message or terminal auxiliary information is system information requested by the terminal; the MCS requested by the terminal; the CCE aggregation level requested by the terminal; a modulation order request requested by the terminal; a subcarrier spacing for transmitting second system information requested by the terminal; a transmission period for transmitting second system information requested by the terminal; an encryption method for the second system information requested by the terminal; the number of transmission repetitions for transmitting the second system information requested by the terminal, or a combination thereof; The method of claim 6.

10. After receiving a system information request message or terminal auxiliary information from the network side, receiving first information of a second system information group sent from the network side; if the first system information is not received, entering a connection state; and sending a system information request message or terminal auxiliary information to the network side; The method of claim 6.

11. After the terminal receives the first system information sent from the network side, The method further includes determining whether to receive the second system information based on reception condition information of the second system information in the first information.

9. The method according to any one of claims 6 to 8.

12. A network-side device Reading the program in memory, A process for receiving a system information request message or terminal auxiliary information sent from a terminal; a process for transmitting first system information to the terminal, wherein the first system information includes first information of a second system information group, and the first information includes one or a combination of the following information: a control information aggregation level indicating the second system information, the number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of the second system information; a processor for executing a process for transmitting a second system information group to the terminal based on the first information; a transceiver for transmitting and receiving data under the control of said processor; Network side device.

13. A network-side device, a receiving module for receiving a system information request message or terminal auxiliary information sent from a terminal; a first transmission module configured to transmit first system information to the terminal, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information, a number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method for a PDCCH or a PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of transmission of the second system information; a second transmitting module for transmitting a second system information group to the terminal based on the first information; Network side device.

14. A terminal, Reading the program in memory, A process in which a terminal sends a system information request message or terminal auxiliary information to a network side; a process for receiving first system information transmitted from a network side, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information; a number of MIMO streams of the second system information; a valid region of the second system information; a valid time of the second system information; reception condition information of the second system information; an MCS index indicating a modulation and coding method for PDCCH or PDSCH of the second system information; a modulation method of the second system information; a subcarrier spacing for transmitting the second system information; a transmission cycle of the second system information; encryption information of the second system information; an encryption public key of the second system information; and a repetition count of the second system information; a processor for executing a process for receiving a second system information group transmitted from a network side based on the first information; a transceiver for transmitting and receiving data under the control of a processor; Terminal.

15. A terminal, a sending module for sending a system information request message or terminal auxiliary information to a network side; a first receiving module that receives first system information transmitted from a network side, the first system information including first information of a second system information group, the first information including one or a combination of the following information: a control information aggregation level indicating the second system information, a number of MIMO streams of the second system information, a valid region of the second system information, a valid time of the second system information, reception condition information of the second system information, an MCS index indicating a modulation and coding method of a PDCCH or a PDSCH of the second system information, a modulation method of the second system information, a subcarrier spacing for transmitting the second system information, a transmission period of the second system information, encryption information of the second system information, an encryption public key of the second system information, and a repetition count of the second system information; a second receiving module for receiving a second system information group transmitted from the network side based on the first information; Terminal.

16. A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of any one of claims 1 to 10. A computer-readable storage medium.

Images