System information sending method, receiving method, terminal and base station

Abstract

A method for sending and receiving system information, a terminal and a base station. The method for sending the system information, when applied to the base station side, comprises: dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and numbering each geographical area to obtain a regional identifier of each geographical area; broadcasting and sending system information, wherein the system information includes regional system information of at least one geographical area. In the present invention, the base station broadcasts regional system information for a specific geographical area, and the terminal can only receive the regional system information of the geographical area where it is located, but not the regional system information of other geographical areas, which can improve the transmission efficiency of the system information and reduce the receiving power consumption overhead of the terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communications, and in particular to a method for sending and receiving system information, a terminal and a base station. Background Art

[0002] In the fifth generation mobile communication (5G) system, each cell usually broadcasts system information. In order to achieve better cell reselection, the reselection related parameters of the neighboring cells are sent in the system information block (SIB) of the current serving cell, for example, sent to the UE in SIB3 (same frequency) / SIB4 (different frequency) / SIB5 (different system). In addition, in order to avoid ping-pong cell selection, the related parameters of the neighboring cells are also placed in SIB3 / SIB4 / SIB5.

[0003] In the prior art, the system information of a cell needs to be broadcast in multiple neighboring cells through SIB3 / SIB4 / SIB5. The redundant signaling transmission reduces the resource utilization efficiency of the entire system. On the other hand, once the terminal (UE) moves to another cell, it needs to re-read the system information, even if some of the system information has been obtained in the previous cell. Therefore, redundant signaling reception also has a certain impact on UE power consumption. This problem still exists in the scenario of wide signaling coverage.

[0004] Signaling wide coverage is a coverage method that may be adopted by future networks, that is, separating control signaling from service data, that is, completing the transmission and reception of control signaling through a lower frequency band (such as 700MHz), and completing the transmission and reception of data through a high frequency band (such as 62.5GHz and above) (that is, the frequency of the frequency band for data transmission and reception is lower than the frequency of the frequency band for control signaling transmission and reception), thereby reducing the impact of large path loss caused by high frequency bands. Figure 1 As shown in the figure, the signaling wide coverage layer covers a relatively large area, and the cell coverage of the heterogeneous data network is relatively small. Because the lower the frequency, the larger the coverage, in this scenario, the low frequency band responsible for transmitting signaling control messages will cover a larger geographical area, while the high frequency band responsible for business data transmission will cover a smaller area. Summary of the invention

[0005] At least one embodiment of the present invention provides a method for sending and receiving system information, a terminal and a network device, which improve the transmission efficiency of system information and reduce the receiving power consumption overhead of the terminal.

[0006] According to one aspect of the present invention, at least one embodiment provides a method for sending system information, which is applied to a base station and includes:

[0007] Dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and numbering each geographical area to obtain an area identifier of each geographical area;

[0008] The system information is broadcast and sent, and the system information includes regional system information of at least one geographical area.

[0009] In addition, according to at least one embodiment of the present invention, the regional system information includes at least one of the following information:

[0010] Cell reselection configuration information;

[0011] Sidelink configuration information;

[0012] Vehicle-to-everything (V2X) communication configuration information;

[0013] Indicates whether network services are enabled in the current geographic area.

[0014] In addition, according to at least one embodiment of the present invention, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0015] In addition, according to at least one embodiment of the present invention, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0016] Access related information;

[0017] The scheduling information of the regional system information.

[0018] In addition, according to at least one embodiment of the present invention, the scheduling information of the regional system information includes at least one of the following information:

[0019] Broadcast period of regional system information;

[0020] Broadcast window length of regional system information;

[0021] The broadcast time and frequency location of regional system information;

[0022] Configuration information for geographic areas;

[0023] The broadcast period of the system information message in the regional system information;

[0024] A mapping relationship between system information messages and system information message sets in regional system information;

[0025] In addition, according to at least one embodiment of the present invention, the present invention further comprises:

[0026] Determine the broadcast window of the regional system information of each geographical area according to the regional identifier of each geographical area, the broadcast cycle of the regional system information of the geographical area, and the broadcast window length of the regional system information;

[0027] The base station broadcasts the corresponding regional system information within the broadcast window of the regional system information of each geographical area.

[0028] In addition, according to at least one embodiment of the present invention, the present invention further comprises:

[0029] Determine, according to the set number of the system information message set to which the system information message of the geographical area belongs, the broadcast period of the regional system information of the geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message, a sending subframe of each system information message in the regional system information;

[0030] The base station broadcasts the corresponding system information message in a sending subframe of each system information message in the regional system information.

[0031] In addition, according to at least one embodiment of the present invention, the system information also includes other system information.

[0032] The basic system information includes: scheduling information of the other system information;

[0033] The other system information includes: at least one of public warning information and positioning system information.

[0034] According to another aspect of the present invention, at least one embodiment provides a method for receiving system information, including:

[0035] The terminal receives regional system information of the current geographical area from a system message sent by the network according to the current geographical area where the terminal is located, wherein the system information includes regional system information of at least one geographical area.

[0036] In addition, according to at least one embodiment of the present invention, the regional system information includes at least one of the following information:

[0037] Cell reselection configuration information;

[0038] Sidelink configuration information;

[0039] Vehicle-to-everything (V2X) communication configuration information;

[0040] Indicates whether network services are enabled in the current geographic area.

[0041] In addition, according to at least one embodiment of the present invention, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0042] In addition, according to at least one embodiment of the present invention, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0043] Access related information;

[0044] The scheduling information of the regional system information.

[0045] In addition, according to at least one embodiment of the present invention, the scheduling information of the regional system information includes at least one of the following information:

[0046] Broadcast period of regional system information;

[0047] Broadcast window length of regional system information;

[0048] The broadcast time and frequency location of regional system information;

[0049] Configuration information for geographic areas;

[0050] The broadcast period of the system information message in the regional system information;

[0051] The mapping relationship between the system information message and the system information message set in the regional system information.

[0052] In addition, according to at least one embodiment of the present invention, the geographical range covered by the base station is pre-divided into a plurality of non-overlapping geographical areas, each of which has a corresponding area identifier; and the method further includes:

[0053] The terminal determines the current geographical area where the terminal is located according to the geographical location where the terminal is located and the configuration information of the geographical area.

[0054] In addition, according to at least one embodiment of the present invention, receiving the regional system information of the current geographical area from a system message sent by a network includes:

[0055] The terminal determines the broadcast window of the regional system information of the current geographical area according to the current geographical area where the terminal is located, the broadcast cycle of the regional system information of the current geographical area, and the broadcast window length of the regional system information;

[0056] The terminal receives the regional system information of the current geographical area within the broadcast window of the regional system information of the current geographical area.

[0057] In addition, according to at least one embodiment of the present invention, the present invention further comprises:

[0058] The terminal determines a sending subframe of the target system information message according to a set number of a system information message set to which the target system information message of the current geographical area belongs, a broadcast period of regional system information of the current geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message;

[0059] The terminal receives a corresponding system information message in a sending subframe of the target system information message.

[0060] In addition, according to at least one embodiment of the present invention, the system information also includes other system information.

[0061] The basic system information includes: scheduling information of the other system information;

[0062] The other system information includes: at least one of public warning information and positioning system information.

[0063] According to another aspect of the present invention, at least one embodiment provides a base station, including:

[0064] A division module, used to divide the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and number each geographical area to obtain an area identifier of each geographical area;

[0065] The broadcast module is used for broadcasting system information, wherein the system information includes regional system information of at least one geographical area.

[0066] According to another aspect of the present invention, at least one embodiment provides a base station, including a transceiver and a processor, wherein:

[0067] The transceiver is used for broadcasting system information, wherein the system information includes regional system information of at least one geographical area.

[0068] According to another aspect of the present invention, at least one embodiment provides a terminal, including:

[0069] The receiving module is used to receive regional system information of the current geographical area from the system message sent by the network according to the current geographical area where the receiving module is located, wherein the system information includes regional system information of at least one geographical area.

[0070] According to another aspect of the present invention, at least one embodiment provides a terminal, including a transceiver and a processor, wherein:

[0071] The transceiver is used to receive regional system information of the current geographical area from a system message sent by a network according to the current geographical area where the transceiver is located, wherein the system information includes regional system information of at least one geographical area.

[0072] According to another aspect of the present invention, at least one embodiment provides a communication device, including: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the method described above when executed by the processor.

[0073] According to another aspect of the present invention, at least one embodiment provides a computer-readable storage medium having a program stored thereon, and when the program is executed by a processor, the steps of the method described above are implemented.

[0074] Compared with the prior art, the embodiments of the present invention provide a method for sending, a method for receiving, a terminal and a base station for system information. The base station broadcasts regional system information for a specific geographical area. The terminal can only receive regional system information for its own geographical area, but not regional system information for other geographical areas. This can improve the transmission efficiency of the system information and reduce the receiving power consumption overhead of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0076] Figure 1 This is an example diagram of a signaling wide coverage in the prior art;

[0077] Figure 2 A schematic diagram of an application scenario of an embodiment of the present invention;

[0078] Figure 3 This is a flow chart of the method for sending system information according to an embodiment of the present invention when it is applied to a base station side;

[0079] Figure 4 An example diagram of a geographic area identifier provided by an embodiment of the present invention;

[0080] Figure 5 An example diagram of a broadcast window for regional system information provided by an embodiment of the present invention;

[0081] Figure 6 This is a flow chart of the method for receiving system information according to an embodiment of the present invention when it is applied to a terminal side;

[0082] Figure 7 An application example diagram of the method for receiving and sending system information according to an embodiment of the present invention;

[0083] Figure 8 A schematic diagram of the structure of a base station provided in an embodiment of the present invention;

[0084] Fig. 9 Another structural schematic diagram of a base station provided in an embodiment of the present invention;

[0085] Fig.10 A schematic diagram of the structure of a terminal provided by an embodiment of the present invention;

[0086] Fig.11 Another structural schematic diagram of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0087] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0088] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment. "And / or" in the specification and claims represents at least one of the connected objects.

[0089] The technology described herein is not limited to NR systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system can implement radio technologies such as Global System for Mobile Communication (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of Universal Mobile Telecommunications System (UMTS). LTE and more advanced LTE (such as LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for example purposes and uses NR terminology in much of the following description, although the techniques may also be applicable to applications other than NR system applications.

[0090] The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the spirit and scope of the present disclosure. Various examples may appropriately omit, replace, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0091] See also Figure 2 , Figure 2 A block diagram of a wireless communication system applicable to an embodiment of the present invention is shown. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a user terminal or user equipment (UE, User Equipment), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 can be a base station and / or a core network element, wherein the above-mentioned base station can be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN access point, or other access point, etc.), wherein the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present invention, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0092] The base station can communicate with the terminal 11 under the control of a base station controller, and in various examples, the base station controller can be part of the core network or certain base stations. Some base stations can communicate control information or user data with the core network via a backhaul. In some examples, some of these base stations can communicate with each other directly or indirectly via a backhaul link, which can be a wired or wireless communication link. The wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on these multiple carriers at the same time. For example, each communication link can be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0093] The base station can communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of ​​the access point can be divided into sectors that constitute only a portion of the coverage area. The wireless communication system may include different types of base stations (e.g., macro base stations, micro base stations, or micro-micro base stations). The base station may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base station may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of the same or different types of base stations, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

[0094] The communication link in the wireless communication system may include an uplink for carrying an uplink (UL) transmission (e.g., from the terminal 11 to the network device 12), or a downlink for carrying a downlink (DL) transmission (e.g., from the network device 12 to the terminal 11). UL transmission may also be referred to as reverse link transmission, and DL transmission may also be referred to as forward link transmission. Downlink transmission may be performed using a licensed frequency band, an unlicensed frequency band, or both. Similarly, uplink transmission may be performed using a licensed frequency band, an unlicensed frequency band, or both.

[0095] The embodiments of the present invention can solve the problems of low wireless resource utilization rate and high terminal receiving power consumption caused by redundant system information transmission in a signaling wide coverage scenario.

[0096] In the signaling wide coverage scenario, in order to avoid the problem of low resource utilization caused by redundant neighboring system information transmission, the embodiment of the present invention groups multiple cells within the same geographical area into one group, and broadcasts system information in units of cell groups. As a result, the neighboring system information does not need to be sent in the SIB3 / 4 / 5 of the serving cell. In addition, as long as the neighboring cell still belongs to the scope of the current geographical area, even if the terminal (UE) moves to the neighboring cell, the terminal does not need to obtain the system information again, which ensures the reusability of the system information and reduces the power consumption of the terminal receiving the system information.

[0097] Reference Figure 3 The embodiment of the present invention provides a method for sending system information, which, when applied to a base station side, includes the following steps:

[0098] Step 31: divide the geographical range covered by the base station into multiple non-overlapping geographical areas, and number each geographical area to obtain an area identifier of each geographical area.

[0099] Here, the embodiment of the present invention may divide the geographical range covered by the base station into multiple non-overlapping geographical areas. Figure 4 An example of geographic area identification is given, in which, for the geographic range covered by the base station, the geographic areas are numbered in sequence in the horizontal axis X direction from small to large and then in the vertical axis Y direction from small to large according to the two-dimensional coordinate system to obtain the identification of each geographic area. Figure 4 Each dotted square represents a geographical area, and the geographical area identification starts from #0. Figure 4 The CCP includes geographical areas #0 to #Ny*Nx-1. It should be noted that Figure 4 This is only an example of the geographic area identification numbering in the embodiment of the present invention. The embodiment of the present invention may also adopt other numbering methods as long as the identification of each geographic area is unique.

[0100] More specifically, the configuration information of the geographic area includes one or more of the following information: reference point location, Wx, Wy, Nx, where Wx and Wy represent the width of the geographic area in the X direction and the Y direction, respectively, and Nx represents the number of geographic areas in the X direction. The reference point is a pre-selected location point with a fixed geographical location to facilitate determining the identification (number) of the geographic area where the terminal is currently located.

[0101] Step 32: The base station broadcasts system information, where the system information includes regional system information of at least one geographical area.

[0102] When broadcasting system information, the base station carries regional system information of at least one geographical area in the system information. The regional system information is system information broadcast for the geographical area. The regional system information may specifically include at least one of the following information:

[0103] 1) Cell reselection configuration information;

[0104] 2) Sidelink configuration information;

[0105] 3) Vehicle-to-everything (V2X) communication configuration information;

[0106] 4) Indication information on whether network slicing services are enabled in the current geographical area, etc.

[0107] In addition, the regional system information of the geographical area may be sent via at least one system information message. The system information message of the same regional system information may be divided into at least one system information message set, each system information message set including at least one system information message.

[0108] Through the above steps, the base station of the embodiment of the present invention can broadcast different system information for different geographical areas. Terminals (UEs) in different geographical areas can only monitor the system information of their own geographical areas (i.e., regional system information of the current geographical area), thereby reducing the power consumption of the terminal receiving the system information.

[0109] Optionally, the system information in this embodiment of the present invention further includes basic system information, wherein the basic system information may include at least one of the following information:

[0110] 1) Access relevant information.

[0111] The access-related information includes one or more of the following information: the cell ID responsible for signaling transmission, access resource configuration (including but not limited to preamble code resource configuration, time-frequency resource configuration, etc.), and may also include the broadcast configuration of basic system information (such as broadcast period, time-frequency position, etc.), the correspondence between frequency points and network slicing services, etc.

[0112] 2) Scheduling information of the regional system information.

[0113] The scheduling information of the regional system information generally includes one or more of the following information: the broadcast period of the regional system information, the broadcast window length, the broadcast time and frequency position, the configuration information of the geographical area, the broadcast period of the system information message of the geographical area (zone), the mapping relationship between the system information message in the regional system information and the system information message set, etc.

[0114] The embodiment of the present invention divides the geographical range covered by the base station into multiple non-overlapping geographical areas, and numbers each geographical area to obtain a zone identifier (Zone_id) of each geographical area. The base station can also determine the broadcast window of the regional system information of each geographical area according to the zone identifier of each geographical area, the broadcast cycle of the regional system information of the geographical area, and the broadcast window length of the regional system information; then, the corresponding regional system information is broadcast within the broadcast window of the regional system information of each geographical area.

[0115] Figure 5 An example of a broadcast window for regional system information is given. The windows #0 to #Ny*Nx-1 are distributed as broadcast windows for regional system information for each of the geographic regions #0 to #Ny*Nx-1. For example, Figure 5 FIG. 1 shows the broadcast cycle of the regional system information of geographic region #0. Since the system information of geographic region #0 cannot be completely sent in one broadcast window, the system information messages #1 to #2 of geographic region #0 are broadcast in the first broadcast window, and the system information messages #3 to #5 of geographic region #0 are broadcast in the second broadcast window. Subsequently, the system information messages #1 to #2 of geographic region #0 are broadcast in the third broadcast window, and so on.

[0116] In the case where the system information messages of the same regional system information are divided into at least one system information message set, the base station of an embodiment of the present invention can determine the sending subframe of each system information message in the regional system information according to the set number of the system information message set to which the system information message of the geographical area belongs, the broadcast period of the regional system information of the geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message, and then broadcast the corresponding system information message in the sending subframe of each system information message in the regional system information.

[0117] In addition, the system information broadcasted by the base station may also include other system information, and the content of the other system information may refer to the settings of the prior art, for example, including at least one of public warning information and positioning system information. In an embodiment of the present invention, the basic system information may also include: scheduling information of the other system information. The other system information may be broadcast periodically or requested on demand (i.e., the base station will broadcast it only after the terminal requests and certain conditions are met, otherwise it will not be broadcast).

[0118] From the above, it can be seen that the system information broadcast by the base station in the embodiment of the present invention may include basic system information, regional system information and other system information at most. Among them, the basic system information is usually system information for all geographical areas, and the regional system information is system information for a specific geographical area. In this way, in a signaling wide coverage scenario, the terminal can only receive the regional system information of its own geographical area, and not receive the regional system information of other geographical areas, which can reduce the power consumption required for the terminal to receive system information.

[0119] Please refer to Figure 6 The method for receiving system information provided by an embodiment of the present invention, when applied to a terminal side, includes:

[0120] Step 61: The terminal receives regional system information of the current geographical area from a system message sent by the network according to the current geographical area where the terminal is located, wherein the system information includes regional system information of at least one geographical area.

[0121] Here, the regional system information includes at least one of the following information: 1) cell reselection configuration information; 2) sidelink configuration information; 3) V2X communication configuration information; 4) indication information on whether network slicing service is enabled in the current geographical area.

[0122] In addition, the system information may also include other system information, and the other system information specifically includes at least one of public warning information and positioning system information. At this time, the basic system information also includes scheduling information of the other system information.

[0123] Through the above steps, the base station can broadcast different system information for different geographical areas. The terminal (UE) can monitor the system information of the corresponding geographical area according to the geographical area where it is located, thereby reducing the power consumption of the terminal receiving the system information.

[0124] In the embodiment of the present invention, the regional system information of the geographical area may be sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0125] In an embodiment of the present invention, the system information also includes basic system information, wherein the basic system information includes at least one of the following information: 1) access related information; 2) scheduling information of the regional system information. The scheduling information of the regional system information generally includes one or more of the following information: broadcast period of regional system information, broadcast window length, broadcast time-frequency position, configuration information of a geographical area, broadcast period of system information messages of a geographical area (zone), mapping relationship between system information messages in regional system information and system information message sets, etc. For more specific content of the above information, please refer to the previous text, which will not be repeated here.

[0126] The terminal can pre-divide the geographical range covered by the base station into multiple non-overlapping geographical areas, each of which has a corresponding area identifier. The terminal can determine its current geographical area according to its geographical location and the configuration information of the geographical area.

[0127] For example, the terminal determines the identifier (Zone_id) of the geographical area where it is located based on its current geographical coordinates (x, y), the geographical coordinates (x0, y0) of the reference point, the width Wx of each geographical area in the X direction and the width Wy of each geographical area in the Y direction, and the number Nx of the geographical areas in the X direction. Here, assuming that the size and shape of each geographical area are the same, the geographical coordinates can be represented by latitude and longitude coordinates, etc. Figure 6 Taking the numbering method of the geographical areas shown in the figure as an example, a calculation method of a geographical area identifier (Zone_id) is as follows:

[0128] x1=Floor[(x-x0) / Wx]

[0129] y1=Floor[(y-y0) / Wy]

[0130] Zone_id=y1*Nx+x1

[0131] In the embodiment of the present invention, the regional system information is system information broadcast for different geographical areas. Terminals in different geographical areas can only monitor the regional system information of the geographical area where they are located. Specifically, the terminal determines the identifier of the geographical area (zone) where it is located based on its own location, and the relevant parameters in the regional system information broadcast in the basic system information and the scheduling information of other system information, and then reads the regional system information corresponding to the geographical area based on the corresponding relationship between the geographical area identifier zone_id and the regional system information.

[0132] Specifically, in the above step 61, when receiving the regional system information of the current geographical area, the terminal can determine the broadcast window of the regional system information of the current geographical area according to the current geographical area where the terminal is located, the broadcast cycle of the regional system information of the current geographical area, and the broadcast window length of the regional system information. Then, the regional system information of the current geographical area is received within the broadcast window of the regional system information of the current geographical area.

[0133] In an embodiment of the present invention, the regional system information of the geographical area is sent via at least one system information message, and the system information messages of the same regional system information are divided into at least one system information message set. In some cases, the terminal may only need to receive one or some system information messages in the regional system information, but does not need to receive all system information messages of the regional system information. For ease of description, the system information message that needs to be received is referred to as a target system information message. The terminal can determine the sending subframe of the target system information message based on the set number of the system information message set to which the target system information message of the current geographical area belongs, the broadcast period of the regional system information of the current geographical area, the broadcast window length of the regional system information, and the broadcast period of the system information message; and then receive the corresponding system information message in the sending subframe of the target system information message.

[0134] The following is an example of getting the location of the regional system information broadcast window for a certain geographic area:

[0135] First, determine x=zone_id*w, where w represents the length of the broadcast window of the regional system information.

[0136] Then, the target radio frame SFN where the broadcast window of the regional system information is located is determined. The target radio frame SFN is a SFN that satisfies the following condition: SFN mod T_zone=FLOOR(x / 10), where T_zone is the broadcast period of the regional system information of a certain zone.

[0137] Then, the starting subframe of the broadcast window of the regional system information is determined, and the subframe number a of the starting subframe satisfies the following condition: a=x mod 10.

[0138] In this way, through the above steps, the terminal can determine the radio frame and the starting subframe where the regional system information broadcast window of the specific geographical area is located, and thus receive the regional system information of the specific geographical area according to the determined radio frame and the starting subframe.

[0139] The following provides an example of getting the location of a specific system information message in the regional system information for a geographic region:

[0140] In each geographical area, the regional system information to be broadcast is divided into different system information messages. Different system information messages can have the same broadcast period or different broadcast periods. Figure 5 As shown, it is assumed that system information messages #1 and #2 constitute system information message set 1 (set #1), system information messages #3, #4 and #5 constitute system information message set 2 (set #2), and set #1 and set #2 together constitute a set list (set list). Assuming that the terminal wants to obtain a target system information message of a certain area system information, such as system information message #4, then the terminal can determine the specific receiving position in the following manner:

[0141] First, determine x=zone_id*w, where w represents the length of the broadcast window of the regional system information.

[0142] Then, the target radio frame SFN where the broadcast window of the regional system information is located is determined. The target radio frame SFN is a SFN that satisfies the following conditions:

[0143] Then, determine the target wireless frame SFN where the target system information message to be received is located. The target wireless frame SFN is a SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10) + T_zone*(set_id-1), where T_si is the broadcast period of the target system information message, and set_id is the position of the system information message set where the target system information message is located in all system information message sets (set list) of the system information in this area.

[0144] Then, the starting subframe of the broadcast window of the system information of the area is determined, and the subframe number a of the starting subframe satisfies the following condition: a=x mod 10.

[0145] In the above examples, the unit of the length w of the broadcast window is milliseconds.

[0146] In another example, the access related information includes a correspondence between a frequency point and a network slice service.

[0147] Assume that network slices are bound to frequencies, such as enhanced mobile broadband (eMBB) slice services are provided through 2.6GHz and 4.9GHz frequencies, while ultra-reliable and low latency communication (URLLC) slice services can only be provided through 4.9GHz frequency. Therefore, the isolation requirements of slices (services) are met through resource isolation.

[0148] like Figure 7 As shown, in actual deployment scenarios, the network may enable URLLC slicing services only in some areas (such as cells), such as in factories or hospitals. In other words, not all areas covered by the 4.9 GHz frequency support URLLC slicing services.

[0149] In order to support the flexible deployment scenarios of the above-mentioned radio access network slices (RAN slices) and reduce signaling overhead, the broadcast of slice-related system information can be divided into two levels. The correspondence between the broadcast frequency and the network slice service is in the basic system information, and whether the corresponding network slice service is turned on / off in the current geographical area is indicated in the regional system information. There are two specific configuration methods:

[0150] 1) Basic system information indicates: F1 and F2 frequencies can provide eMBB slicing services, and F2 frequency can provide URLLC slicing services; the regional system information corresponding to geographic area 2 (Area2) indicates: F2 frequency does not provide URLLC slicing services in the current geographic area. Or,

[0151] 2) The basic system information indicates that the F1 and F2 frequencies provide eMBB slicing services; the regional system information corresponding to Area1 indicates that the F2 frequency can also provide URLLC slicing services in the current geographical area.

[0152] That is to say, in the embodiment of the present invention, the base station may include the correspondence between the frequency point and the network slicing service in the basic system information sent by broadcast, and include indication information of whether the network slicing service is enabled in the current geographical area in the regional system information sent by broadcast. The terminal determines the network slicing service corresponding to the frequency point of the current geographical area by receiving the above correspondence, and then determines whether the relevant network slicing service is enabled in the current geographical area according to the indication information.

[0153] The above describes various methods of the embodiments of the present invention. The following further provides devices for implementing the above methods.

[0154] The embodiment of the present invention provides Figure 8 A base station is shown, comprising:

[0155] A division module 81 is used to divide the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and number each geographical area to obtain an area identifier of each geographical area;

[0156] The broadcast module 82 is used to broadcast system information, where the system information includes regional system information of at least one geographical area.

[0157] Through the above modules, the embodiment of the present invention can broadcast regional system information for a geographical area, thereby improving the transmission efficiency of the system information and reducing the receiving power consumption overhead of the terminal.

[0158] Optionally, the regional system information includes at least one of the following information:

[0159] Cell reselection configuration information;

[0160] Sidelink configuration information;

[0161] Vehicle-to-everything (V2X) communication configuration information;

[0162] Indicates whether network services are enabled in the current geographic area.

[0163] Optionally, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0164] Optionally, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0165] Access related information;

[0166] The scheduling information of the regional system information.

[0167] Optionally, the scheduling information of the regional system information includes at least one of the following information:

[0168] Broadcast period of regional system information;

[0169] Broadcast window length of regional system information;

[0170] The broadcast time and frequency location of regional system information;

[0171] Configuration information for geographic areas;

[0172] The broadcast period of the system information message in the regional system information;

[0173] A mapping relationship between system information messages and system information message sets in regional system information;

[0174] Optionally, the base station further includes:

[0175] A first determination module is used to determine the broadcast window of the regional system information of each geographical area according to the regional identifier of each geographical area, the broadcast cycle of the regional system information of the geographical area, and the broadcast window length of the regional system information;

[0176] The broadcast module is also used to broadcast the corresponding regional system information within the broadcast window of the regional system information of each geographical area.

[0177] Optionally, the base station further includes:

[0178] A second determination module is used to determine the sending subframe of each system information message in the regional system information according to the set number of the system information message set to which the system information message of the geographical area belongs, the broadcast period of the regional system information of the geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message;

[0179] The broadcast module is further used to broadcast the corresponding system information message in the sending subframe of each system information message in the regional system information.

[0180] Optionally, the system information also includes other system information.

[0181] The basic system information includes: scheduling information of the other system information;

[0182] The other system information includes: at least one of public warning information and positioning system information.

[0183] It should be noted that the device in this embodiment is the same as the above Figure 3 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. It should be noted that the above device provided in the embodiment of the present invention can implement all the method steps implemented in the above method embodiment, and can achieve the same technical effects, and the parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be specifically described here.

[0184] Please refer to Fig. 9 , an embodiment of the present invention provides a schematic diagram of a structure of a network side device, including: a processor 901, a transceiver 902, a memory 903 and a bus interface, wherein:

[0185] In the embodiment of the present invention, the network side device further includes: a program stored in the memory 903 and executable on the processor 901, and when the program is executed by the processor 901, the following steps are implemented:

[0186] Dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and numbering each geographical area to obtain an area identifier of each geographical area;

[0187] Broadcasting system information, the system information includes regional system information of at least one geographical area

[0188] Optionally, the regional system information includes at least one of the following information:

[0189] Cell reselection configuration information;

[0190] Sidelink configuration information;

[0191] Vehicle-to-everything (V2X) communication configuration information;

[0192] Indicates whether network services are enabled in the current geographic area.

[0193] Optionally, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0194] Optionally, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0195] Access related information;

[0196] The scheduling information of the regional system information.

[0197] Optionally, the scheduling information of the regional system information includes at least one of the following information:

[0198] Broadcast period of regional system information;

[0199] Broadcast window length of regional system information;

[0200] The broadcast time and frequency location of regional system information;

[0201] Configuration information for geographic areas;

[0202] The broadcast period of the system information message in the regional system information;

[0203] A mapping relationship between system information messages and system information message sets in regional system information;

[0204] Optionally, when the processor executes the program, the processor further implements the following steps:

[0205] Determine the broadcast window of the regional system information of each geographical area according to the regional identifier of each geographical area, the broadcast cycle of the regional system information of the geographical area, and the broadcast window length of the regional system information;

[0206] Corresponding regional system information is broadcast within the broadcast window of regional system information of each geographical area.

[0207] Optionally, when the processor executes the program, the following steps are further implemented: determining a sending subframe of each system information message in the regional system information according to a set number of a system information message set to which the system information message of the geographical area belongs, a broadcast period of the regional system information of the geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message;

[0208] In the sending subframe of each system information message in the regional system information, the corresponding system information message is broadcasted.

[0209] Optionally, the system information also includes other system information.

[0210] The basic system information includes: scheduling information of the other system information;

[0211] The other system information includes: at least one of public warning information and positioning system information.

[0212] It is understandable that in the embodiment of the present invention, when the computer program is executed by the processor 901, the above Figure 3 The various processes of the method embodiment shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0213] exist Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 901 and memory represented by memory 903. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 902 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0214] The processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 901 when performing operations.

[0215] It should be noted that the terminal in this embodiment is the same as the above Figure 3The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the terminal, and can also achieve the same technical effect. In the device, the transceiver 902 and the memory 903, as well as the transceiver 902 and the processor 901 can be connected through the bus interface communication, the function of the processor 901 can also be implemented by the transceiver 902, and the function of the transceiver 902 can also be implemented by the processor 901. It should be noted that the above device provided in the embodiment of the present invention can implement all the method steps implemented in the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0216] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0217] Dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and numbering each geographical area to obtain an area identifier of each geographical area;

[0218] Broadcasting system information, the system information includes regional system information of at least one geographical area

[0219] When the program is executed by the processor, it can implement all the implementation methods of the above-mentioned method for sending and receiving system information applied to the base station, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0220] Please refer to Fig.10 , an embodiment of the present invention provides a terminal, including:

[0221] The receiving module 101 is used to receive regional system information of a current geographical area from a system message sent by a network according to the current geographical area where the receiving module is located, wherein the system information includes regional system information of at least one geographical area.

[0222] Through the above modules, the terminal of the embodiment of the present invention can only receive the regional system information of the geographical area where the terminal is located, thereby improving the transmission efficiency of the system information and reducing the receiving power consumption overhead of the terminal.

[0223] Optionally, the regional system information includes at least one of the following information:

[0224] Cell reselection configuration information;

[0225] Sidelink configuration information;

[0226] Vehicle-to-everything (V2X) communication configuration information;

[0227] Indicates whether network services are enabled in the current geographic area.

[0228] Optionally, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0229] Optionally, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0230] Access related information;

[0231] The scheduling information of the regional system information.

[0232] Optionally, the scheduling information of the regional system information includes at least one of the following information:

[0233] Broadcast period of regional system information;

[0234] Broadcast window length of regional system information;

[0235] The broadcast time and frequency location of regional system information;

[0236] Configuration information for geographic areas;

[0237] The broadcast period of the system information message in the regional system information;

[0238] The mapping relationship between the system information message and the system information message set in the regional system information.

[0239] Optionally, the geographical range covered by the base station is pre-divided into a plurality of non-overlapping geographical areas, each of which has a corresponding area identifier; and the terminal further includes:

[0240] The first determination module is used to determine the current geographical area where the user is located according to the geographical location where the user is located and the configuration information of the geographical area.

[0241] Optionally, the terminal further includes:

[0242] The second determination module is used to determine the broadcast window of the regional system information of the current geographical area according to the current geographical area where the module is located, the broadcast cycle of the regional system information of the current geographical area, and the broadcast window length of the regional system information;

[0243] The receiving module is further used to receive the regional system information of the current geographical area within the broadcast window of the regional system information of the current geographical area.

[0244] Optionally, the terminal further includes:

[0245] A third determination module is used to determine the sending subframe of the target system information message according to the set number of the system information message set to which the target system information message of the current geographical area belongs, the broadcast period of the regional system information of the current geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message;

[0246] The receiving module is further configured to receive a corresponding system information message in a sending subframe of the target system information message.

[0247] Optionally, the system information also includes other system information.

[0248] The basic system information includes: scheduling information of the other system information;

[0249] The other system information includes: at least one of public warning information and positioning system information.

[0250] It should be noted that the device in this embodiment is the same as the above Figure 6 The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effects. The above device provided by the embodiment of the present invention can implement all the method steps implemented by the above method embodiment, and can achieve the same technical effects. The parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0251] Please refer to Fig.11 , a schematic diagram of a structure of a terminal provided in an embodiment of the present invention, the terminal includes: a processor 1101, a transceiver 1102, a memory 1103, a user interface 1104 and a bus interface.

[0252] In the embodiment of the present invention, the terminal further includes: a program stored in the memory 1103 and executable on the processor 1101 .

[0253] When the processor 1101 executes the program, the following steps are implemented:

[0254] According to the current geographical area where the current geographical area is located, regional system information of the current geographical area is received from a system message sent by a network, wherein the system information includes regional system information of at least one geographical area.

[0255] Optionally, the regional system information includes at least one of the following information:

[0256] Cell reselection configuration information;

[0257] Sidelink configuration information;

[0258] Vehicle-to-everything (V2X) communication configuration information;

[0259] Indicates whether network services are enabled in the current geographic area.

[0260] Optionally, the regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set.

[0261] Optionally, the system information further includes basic system information, wherein the basic system information includes at least one of the following information:

[0262] Access related information;

[0263] The scheduling information of the regional system information.

[0264] Optionally, the scheduling information of the regional system information includes at least one of the following information:

[0265] Broadcast period of regional system information;

[0266] Broadcast window length of regional system information;

[0267] The broadcast time and frequency location of regional system information;

[0268] Configuration information for geographic areas;

[0269] The broadcast period of the system information message in the regional system information;

[0270] The mapping relationship between the system information message and the system information message set in the regional system information.

[0271] Optionally, the geographical range covered by the base station is pre-divided into a plurality of non-overlapping geographical areas, each of which has a corresponding area identifier; and when the processor executes the program, the following steps are further implemented:

[0272] Determine the current geographical area where the user is located according to the geographical location where the user is located and the configuration information of the geographical area.

[0273] Optionally, when the processor executes the program, the processor further implements the following steps:

[0274] Determine the broadcast window of the regional system information of the current geographical area according to the current geographical area where the current geographical area is located, the broadcast cycle of the regional system information of the current geographical area, and the broadcast window length of the regional system information;

[0275] The regional system information of the current geographical area is received within a broadcast window of the regional system information of the current geographical area.

[0276] Optionally, when the processor executes the program, the processor further implements the following steps:

[0277] Determine a sending subframe for the target system information message according to a set number of a system information message set to which the target system information message of the current geographical area belongs, a broadcast period of regional system information of the current geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message;

[0278] In a sending subframe of the target system information message, a corresponding system information message is received.

[0279] Optionally, the system information also includes other system information.

[0280] The basic system information includes: scheduling information of the other system information;

[0281] The other system information includes: at least one of public warning information and positioning system information.

[0282] It is understandable that in the embodiment of the present invention, when the computer program is executed by the processor 1101, the above Figure 6 The various processes of the method embodiment shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0283] exist Fig.11 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1101 and various circuits of memory represented by memory 1103 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1102 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1104 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0284] The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 can store data used by the processor 1101 when performing operations.

[0285] It should be noted that the device in this embodiment is the same as the above Figure 6The device corresponding to the method shown, the implementation methods in the above embodiments are all applicable to the embodiments of the device, and can also achieve the same technical effect. In the device, the transceiver 1102 and the memory 1103, as well as the transceiver 1102 and the processor 1101 can be connected through the bus interface communication, the function of the processor 1101 can also be implemented by the transceiver 1102, and the function of the transceiver 1102 can also be implemented by the processor 1101. It should be noted that the above device provided in the embodiment of the present invention can implement all the method steps implemented in the above method embodiment, and can achieve the same technical effect, and the parts and beneficial effects that are the same as the method embodiment in this embodiment will not be specifically repeated here.

[0286] In some embodiments of the present invention, a computer-readable storage medium is further provided, on which a program is stored, and when the program is executed by a processor, the following steps are implemented:

[0287] According to the current geographical area where the current geographical area is located, regional system information of the current geographical area is received from a system message sent by a network, wherein the system information includes regional system information of at least one geographical area.

[0288] When the program is executed by the processor, it can implement all the implementation methods of the above-mentioned method for sending and receiving system information applied to the terminal side, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0289] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0290] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0291] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0292] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present invention.

[0293] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0294] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0295] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for sending system information, applied to a base station, characterized in that: include: Dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and numbering each geographical area to obtain an area identifier of each geographical area; Broadcasting system information, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; Determine, according to the set number of the system information message set to which the system information message of the geographical area belongs, the broadcast period of the regional system information of the geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message, a sending subframe of each system information message in the regional system information; The base station broadcasts the corresponding system information message in a sending subframe of each system information message in the regional system information; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

2. The method according to claim 1, characterized in that The regional system information includes at least one of the following information: Cell reselection configuration information; Sidelink configuration information; Vehicle-to-everything (V2X) communication configuration information; Indicates whether network services are enabled in the current geographic area.

3. The method according to claim 1, characterized in that The system information further includes basic system information, wherein the basic system information includes at least one of the following information: Access related information; The scheduling information of the regional system information.

4. The method according to claim 3, characterized in that The scheduling information of the regional system information includes at least one of the following information: Broadcast period of regional system information; Broadcast window length of regional system information; The broadcast time and frequency location of regional system information; Configuration information for geographic areas; The broadcast period of the system information message in the regional system information; The mapping relationship between the system information message and the system information message set in the regional system information.

5. The method according to claim 4, characterized in that Also includes: Determine the broadcast window of the regional system information of each geographical area according to the regional identifier of each geographical area, the broadcast cycle of the regional system information of the geographical area, and the broadcast window length of the regional system information; The base station broadcasts the corresponding regional system information within the broadcast window of the regional system information of each geographical area.

6. The method according to claim 3, characterized in that The system information also includes other system information; The basic system information includes: scheduling information of the other system information; The other system information includes: at least one of public warning information and positioning system information.

7. A method for receiving system information, characterized in that: include: The terminal receives, according to the current geographical area where the terminal is located, regional system information of the current geographical area from the system message sent by the network, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; The terminal determines a sending subframe of the target system information message according to a set number of a system information message set to which the target system information message of the current geographical area belongs, a broadcast period of regional system information of the current geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message; The terminal receives a corresponding system information message in a sending subframe of the target system information message; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

8. The method according to claim 7, characterized in that The regional system information includes at least one of the following information: Cell reselection configuration information; Sidelink configuration information; Vehicle-to-everything (V2X) communication configuration information; Indicates whether network services are enabled in the current geographic area.

9. The method according to claim 7, characterized in that: The system information further includes basic system information, wherein the basic system information includes at least one of the following information: Access related information; The scheduling information of the regional system information.

10. The method according to claim 9, characterized in that The scheduling information of the regional system information includes at least one of the following information: Broadcast period of regional system information; Broadcast window length of regional system information; The broadcast time and frequency location of regional system information; Configuration information for geographic areas; The broadcast period of the system information message in the regional system information; The mapping relationship between the system information message and the system information message set in the regional system information.

11. The method according to claim 10, characterized in that The geographical range covered by the base station is pre-divided into a plurality of non-overlapping geographical areas, each of which has a corresponding area identifier; the method further includes: The terminal determines the current geographical area where the terminal is located according to the geographical location where the terminal is located and the configuration information of the geographical area.

12. The method according to claim 10, characterized in that Receiving regional system information of the current geographical area from a system message sent by a network, including: The terminal determines the broadcast window of the regional system information of the current geographical area according to the current geographical area where the terminal is located, the broadcast cycle of the regional system information of the current geographical area, and the broadcast window length of the regional system information; The terminal receives the regional system information of the current geographical area within the broadcast window of the regional system information of the current geographical area.

13. The method according to claim 9, characterized in that The system information also includes other system information. The basic system information includes: scheduling information of the other system information; The other system information includes: at least one of public warning information and positioning system information.

14. A base station, characterized in that: include: A division module, used to divide the geographical range covered by the base station into a plurality of non-overlapping geographical areas, and number each geographical area to obtain an area identifier of each geographical area; A broadcast module, configured to broadcast and send system information, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; A second determination module is used to determine the sending subframe of each system information message in the regional system information according to the set number of the system information message set to which the system information message of the geographical area belongs, the broadcast period of the regional system information of the geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message; The broadcast module is further configured to broadcast the corresponding system information message in the sending subframe of each system information message in the regional system information; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

15. A base station, characterized in that: comprising a transceiver and a processor, wherein: The transceiver is used to broadcast and send system information, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; When the processor executes the program, the following steps are further implemented: determining a sending subframe of each system information message in the regional system information according to a set number of a system information message set to which the system information message of the geographical area belongs, a broadcast period of the regional system information of the geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message; The base station broadcasts the corresponding system information message in a sending subframe of each system information message in the regional system information; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

16. A terminal, characterized in that: include: A receiving module, configured to receive, according to a current geographical area where the current geographical area is located, regional system information of the current geographical area from a system message sent by a network, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; A third determination module is used to determine the sending subframe of the target system information message according to the set number of the system information message set to which the target system information message of the current geographical area belongs, the broadcast period of the regional system information of the current geographical area, the broadcast window length of the regional system information and the broadcast period of the system information message; The receiving module is further configured to receive a corresponding system information message in a sending subframe of the target system information message; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

17. A terminal, characterized in that: comprising a transceiver and a processor, wherein: The transceiver is used to receive regional system information of the current geographical area from a system message sent by a network according to the current geographical area where the transceiver is located, wherein the system information includes regional system information of at least one geographical area; The regional system information of the geographical area is sent via at least one system information message, and the system information message of the same regional system information is divided into at least one system information message set; The processor further implements the following steps when executing the program: determining a sending subframe of the target system information message according to a set number of a system information message set to which the target system information message of the current geographical area belongs, a broadcast period of regional system information of the current geographical area, a broadcast window length of the regional system information, and a broadcast period of the system information message; The terminal receives a corresponding system information message in a sending subframe of the target system information message; The receiving position of the corresponding system information message received by the terminal is determined in the following manner: Determine x = zone_id*w, where w represents the length of the broadcast window of the regional system information, and zone_id represents the geographical area identifier; determine the target wireless frame SFN where the target system information message to be received is located, and the target wireless frame SFN is an SFN that satisfies the following conditions: SFN mod T_si = FLOOR(x / 10)+ T_zone* (set_id -1), where T_si is the broadcast period of the target system information message, T_zone is the system information broadcast period corresponding to zone_id, and set_id is the position of the system information message set where the target system information message is located in all system information message sets of the regional system information; determine the starting subframe of the broadcast window of the regional system information, and the subframe number a of the starting subframe satisfies the following conditions: a = x mod 10.

18. A communication device, characterized in that: include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps of the method according to any one of claims 1 to 13 are implemented.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 13 are implemented.

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