CN114727299A

CN114727299A - System information sending method, system information receiving method, terminal and base station

Info

Publication number: CN114727299A
Application number: CN202110001421.6A
Authority: CN
Inventors: 李娜; 张慧敏; 孙军帅; 王莹莹; 邓娟; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2022-07-08

Abstract

A sending method, a receiving method, a terminal and a base station of system information are provided, when the sending method of the system information is applied to the base station side, the sending method of the system information comprises the following steps: dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, numbering each geographical area, and obtaining the area identification of each geographical area; and broadcasting and transmitting system information, wherein the system information comprises regional system information of at least one geographic region. The base station broadcasts the regional system information aiming at the specific geographic region, and the terminal can only receive the regional system information of the geographic region where the terminal is located, but not receive the regional system information of other geographic regions, so that the transmission efficiency of the system information can be improved, and the receiving power consumption overhead of the terminal can be reduced.

Description

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

Technical Field

The present invention relates to the field of mobile communication technologies, and in particular, to a method for sending and receiving system information, a terminal, and a base station.

Background

In fifth generation mobile communication (5G) systems, each cell typically broadcasts system information. In order to achieve better cell reselection, reselection related parameters of neighboring cells are sent in a System Information Block (SIB) of a current serving cell, for example, in SIB3 (same frequency)/SIB 4 (different frequency)/SIB 5 (different System) and are sent to the UE. In addition, in order to avoid ping-pong cell selection, the related parameters of the neighbor cells are also put in SIB3/SIB4/SIB 5.

In the prior art, system information of a certain cell needs to be broadcast in a plurality of adjacent cells through SIB3/SIB4/SIB5, and redundant signaling reduces the resource utilization efficiency of the whole system. On the other hand, once the terminal (UE) moves to another cell, it needs to re-read the system information even if the contents of some system information are obtained in the previous cell. Therefore, redundant signaling reception also has some impact on UE power consumption. This problem still exists in signaling wide coverage scenarios.

The signaling wide coverage is a coverage manner that may be adopted by a future network, that is, the control signaling is separated from the service data, that is, the transceiving of the control signaling is completed through a lower frequency band (e.g., 700MHz), and the transceiving of the data is completed through a high frequency band (e.g., 62.5GHz and above) (that is, the frequency of the frequency band for transceiving data is lower than that of the frequency band for transceiving control signaling), so as to reduce the influence of large path loss and the like caused by the high frequency band. As shown in fig. 1, the signaling wide coverage layer covers a relatively large area, and the cell coverage area of the heterogeneous data network is relatively small. As the frequency is lower and the coverage area is larger, in this scenario, the low frequency band responsible for transmitting the signaling control message will cover a larger geographical area, while the high frequency band responsible for transmitting the service data will cover a smaller area.

Disclosure of Invention

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

According to an 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:

dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, numbering each geographical area, and obtaining the area identification of each geographical area;

and broadcasting and transmitting system information, wherein the system information comprises regional system information of at least one geographic region.

Further, in accordance with at least one embodiment of the present invention, the regional system information includes at least one of:

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

indication information whether the network service is turned on in the current geographical area.

Furthermore, in accordance with at least one embodiment of the present invention, the regional system information of the geographic region 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.

Further, in accordance with 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:

accessing the relevant information;

scheduling information of the regional system information.

Further, 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:

a broadcast period of regional system information;

a broadcast window length of regional system information;

broadcast time-frequency location of regional system information;

configuration information for a geographic area;

a broadcast period of a system information message in the regional system information;

mapping relation between system information and system information set in the regional system information;

further, in accordance with at least one embodiment of the present invention, there is also provided:

determining the broadcast window of the regional system information of each geographic area according to the regional identification of each geographic area, the broadcast period of the regional system information of the geographic area and the broadcast window length of the regional system information;

and the base station broadcasts the corresponding regional system information in the broadcast window of the regional system information of each geographic region.

determining a sending subframe of each system information message in the system information of the region according to the set number of a system information message set to which the system information message of the geographic region belongs, the broadcast period of the system information of the geographic region, the broadcast window length of the system information of the region and the broadcast period of the system information message;

and the base station broadcasts the corresponding system information message in the sending subframe of each system information message in the regional system information.

Further in accordance with at least one embodiment of the present invention, 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 common alarm information and positioning system information.

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

the terminal receives regional system information of the current geographical area from system information sent by a network according to the current geographical area where the terminal is located, wherein the system information comprises regional system information of at least one geographical area.

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

accessing the relevant information;

scheduling information of the regional system information.

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

and mapping relation between the system information message in the regional system information and the system information message set.

In addition, according to at least one embodiment of the present invention, the geographic area covered by the base station is divided into a plurality of non-overlapping geographic areas in advance, and each geographic area has a corresponding area identifier; the method further comprises the following steps:

and the terminal determines the current geographical area of the terminal according to the geographical position of the terminal and the configuration information of the geographical area.

Further, according to at least one embodiment of the present invention, receiving regional system information of the current geographical region from a system message transmitted by a network includes:

the terminal determines a broadcast window of the regional system information of the current geographical area according to the current geographical area, the broadcast period of the regional system information of the current geographical area and the broadcast window length of the regional system information;

and the terminal receives the regional system information of the current geographical region in a broadcast window of the regional system information of the current geographical region.

the terminal determines a sending subframe of the target system information message according to the set number of a 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 the terminal receives the corresponding system information message in the sending subframe of the target system information message.

According to another aspect of the present invention, at least one embodiment provides a base station comprising:

the dividing module is used for dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, numbering each geographical area and obtaining the area identifier of each geographical area;

the system comprises a broadcast module and a receiving module, wherein the broadcast module is used for broadcasting and sending system information, and the system information comprises regional system information of at least one geographic region.

In accordance with another aspect of the present invention, at least one embodiment provides a base station comprising a transceiver and a processor, wherein,

the transceiver is configured to broadcast system information, where the system information includes regional system information of at least one geographic region.

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

the receiving module is used for receiving the regional system information of the current geographical area from the system information sent by the network according to the current geographical area where the receiving module is located, wherein the system information comprises regional system information of at least one geographical area.

In accordance with another aspect of the present invention, at least one embodiment provides a terminal comprising a transceiver and a processor, wherein,

the transceiver is configured to receive, according to a current geographic area where the transceiver is located, regional system information of the current geographic area from a system message sent by a network, where the system information includes regional system information of at least one geographic area.

According to another aspect of the present invention, at least one embodiment provides a communication apparatus comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method as described above.

According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.

Compared with the prior art, the system information sending method, the system information receiving method, the terminal and the base station provided by the embodiment of the invention have the advantages that the base station broadcasts the regional system information aiming at the specific geographic region, the terminal can only receive the regional system information of the geographic region where the terminal is located, but does not receive the regional system information of other geographic regions, the transmission efficiency of the system information can be improved, and the receiving power consumption overhead of the terminal is reduced.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is an exemplary diagram of a signaling wide coverage of the prior art;

FIG. 2 is a schematic diagram of an application scenario according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for transmitting system information according to an embodiment of the present invention, when the method is applied to a base station;

FIG. 4 is an exemplary diagram of a geographic area identifier provided by an embodiment of the present invention;

fig. 5 is a diagram illustrating an example of a broadcast window for regional system information according to an embodiment of the present invention;

fig. 6 is a flowchart illustrating a method for receiving system information according to an embodiment of the present invention, when the method is applied to a terminal side;

fig. 7 is a diagram illustrating an exemplary application of a method for receiving and transmitting system information according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a base station according to another embodiment of the present invention;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 11 is another schematic structural diagram of a terminal according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE Evolution (LTE-a) systems, and may 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. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-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 the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A and GSM are described in the literature from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the methods described may be performed in an order different than 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.

Referring to fig. 2, fig. 2 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. 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 a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station and/or a network element of a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the Base Station in the embodiment of the present invention is only taken as an example of a Base Station in an NR system, but does not limit the specific type of base station.

The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

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

The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

The embodiment of the invention can solve the problems of low wireless resource utilization rate, large terminal receiving power consumption and the like caused by redundant system information transmission in a signaling wide-coverage scene.

In a signaling wide coverage scene, in order to avoid the problem of low resource utilization rate and the like caused by the transmission of system information of redundant neighboring cells, the embodiment of the invention groups a plurality of cells in the same geographic area range into a group, and broadcasts the system information by taking the group of cells as a unit. Therefore, the neighbor cell system information does not need to be issued in the SIB3/4/5 of the serving cell. In addition, as long as the adjacent cell still belongs to the range of the current geographic area, even if the terminal (UE) moves to the adjacent cell, the terminal does not need to obtain the system information again, the reusability of the system information is ensured, and the power consumption of the terminal for receiving the system information is reduced.

Referring to fig. 3, an embodiment of the present invention provides a method for sending system information, where when the method is applied to a base station side, the method includes the following steps:

and step 31, dividing the geographical range covered by the base station into a plurality of non-overlapping geographical areas, numbering each geographical area, and obtaining the area identifier of each geographical area.

Here, the embodiment of the present invention may divide the geographical range covered by the base station into a plurality of geographical areas that do not overlap with each other. Fig. 4 shows an example of the geographical area identifier, wherein, for the geographical area covered by the base station, the geographical areas are numbered sequentially from small to large in the direction of the horizontal axis X and from small to large in the direction of the vertical axis Y according to the planar two-dimensional coordinate system, so as to obtain the identifier of each geographical area, each dashed small square in fig. 4 represents a geographical area, the identifier of the geographical area is numbered from #0, and fig. 4 collectively includes the geographical areas #0 to # Ny Nx-1. It should be noted that fig. 4 is only an example of the geographic area identification number in the embodiment of the present invention, and other numbering manners may also be adopted in the embodiment of the present invention, and it is only necessary to satisfy that the identification of each geographic area is unique.

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

And step 32, broadcasting and sending system information by the base station, wherein the system information comprises regional system information of at least one geographic region.

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

1) cell reselection configuration information;

2) sidelink (sidelink) configuration information;

3) internet of vehicles (V2X) communication configuration information;

4) indication information of whether the network slicing service is started in the current geographical area, and the like.

In addition, regional system information for the geographic region may be transmitted via at least one system information message. The system information messages of the same regional system information can be divided into at least one system information message set, and each system information message set comprises at least one system information message.

Through the above steps, the base station of the embodiment of the present invention may broadcast different system information for different geographical areas. The terminals (UE) in different geographical areas may only monitor the system information of the geographical area in which the terminal is located (i.e. the area system information of the current geographical area), so that the power consumption of the terminal for receiving the system information may be reduced.

Optionally, the system information of the embodiment of the present invention further includes basic system information, where the basic system information may include at least one of the following information:

1) and accessing the relevant information.

The access relevant information comprises one or more of the following information: the cell ID and access resource configuration (including but not limited to preamble resource configuration, time-frequency resource configuration, etc.) in charge of signaling transmission may also include broadcast configuration of basic system information (such as broadcast period, time-frequency position, etc.), correspondence between frequency points and network slicing service, etc.

2) Scheduling information of the regional system information.

The scheduling information of the regional system information typically includes one or more of the following information: the system information comprises a broadcast period of regional system information, a broadcast window length, a broadcast time-frequency position, configuration information of a geographic region, a broadcast period of a system information message of the geographic region (zone), a mapping relation between the system information message in the regional system information and a system information message set, and the like.

In the embodiment of the present invention, the geographical range covered by the base station is divided into a plurality of geographical areas which are not overlapped with each other, and each geographical area is numbered, so as to obtain the area identifier (Zone _ id) of each geographical area. The base station can also determine the broadcast window of the regional system information of each geographic area according to the regional identification of each geographic area, the broadcast period of the regional system information of the geographic area and the broadcast window length of the regional system information; then, within the broadcast window of the regional system information of each geographic region, the corresponding regional system information is broadcast.

Fig. 5 shows an example of a broadcast window of regional system information. The windows in which #0 to # Ny x Nx-1 are located are distributed as broadcast windows of regional system information for each of geographic regions #0 to # Ny x Nx-1. For example, fig. 5 shows a broadcast cycle of regional system information of geographic area #0, and since the system information of geographic area #0 cannot be transmitted in one broadcast window, system information messages #1 to #2 of geographic area #0 are broadcast in the first broadcast window, and system information messages #3 to #5 of geographic area #0 are broadcast in the broadcast window of the second cycle. And then continuously broadcasting the system information messages #1 to #2 of the geographic area #0 in a third broadcasting window, and so on.

In the case that the system information messages of the same regional system information are divided into at least one system information message set, the base station of the embodiment of the present invention may determine the transmission subframes 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 messages of the geographic region belong, the broadcast period of the regional system information of the geographic region, 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 transmission subframes of each system information message in the regional system information.

In addition, the system information broadcast by the base station may further include other system information, and the content of the other system information may refer to the setting of the prior art, for example, include at least one of public warning information and positioning system information. In this embodiment of the present invention, the basic system information may further include: scheduling information of the other system information. The other system information may be broadcast periodically or requested as required (i.e. the base station broadcasts only when the terminal requests and meets a certain condition, otherwise does not broadcast).

As can be seen from the above description, the system information broadcast by the base station in the embodiment of the present invention may include, at most, basic system information, regional system information, and other system information. In the signaling wide coverage scenario, the terminal may only receive the regional system information of the geographic area where the terminal is located, but not receive the regional system information of other geographic areas, so that power consumption required by the terminal to receive the system information may be reduced.

Referring to fig. 6, a method for receiving system information according to an embodiment of the present invention, when applied to a terminal side, includes:

and 61, the terminal receives the regional system information of the current geographical area from the system information sent by the network according to the current geographical area where the terminal is located, wherein the system information comprises regional system information of at least one geographical area.

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

In addition, the system information may further include other system information, and the other system information specifically includes at least one of public warning information and positioning system information. In this case, the basic system information further includes scheduling information of the other system information.

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 the terminal is located, so that the power consumption of the terminal for receiving the system information can be reduced.

In the embodiment of the present invention, the regional system information of the geographic region may be sent through 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.

In this embodiment of the present invention, the system information further includes basic system information, where the basic system information includes at least one of the following information: 1) accessing the relevant information; 2) scheduling information of the regional system information. Wherein the scheduling information of the regional system information generally includes one or more of the following information: the system information comprises a broadcast period of regional system information, a broadcast window length, a broadcast time-frequency position, configuration information of a geographic region, a broadcast period of a system information message of the geographic region (zone), a mapping relation between the system information message in the regional system information and a system information message set, and the like. For more details of the above information, reference may be made to the foregoing description, and details are not repeated here.

The terminal may be divided into a plurality of non-overlapping geographical areas in advance in a geographical range covered by the base station, and each geographical area has a corresponding area identifier. The terminal can determine the current geographical area of the terminal according to the geographical position of the terminal and the configuration information of the geographical area.

For example, the terminal determines the identification (Zone _ id) of the geographical area in which the terminal is located according to the current geographical position coordinates (X, Y), the geographical position coordinates (X0, Y0) of the reference point, the width Wx of each geographical area in the X direction and the width Wy 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 position coordinates may be represented by latitude and longitude coordinates or the like. Taking the numbering of the geographical areas as shown in fig. 6 as an example, one way of calculating the geographical area identifier (Zone _ id) is as follows:

x1＝Floor[(x-x0)/Wx]

y1＝Floor[(y-y0)/Wy]

Zone_id＝y1*Nx+x1

in the embodiment of the invention, the regional system information is the system information broadcasted aiming at different geographic regions. Terminals in different geographical areas can only monitor regional system information of the geographical area in which the terminal is located. Specifically, the terminal determines an identifier of a geographical area (zone) where the terminal is located based on the position of the terminal and related parameters in scheduling information of regional system information and other system information broadcast in the basic system information, and then reads regional system information corresponding to the geographical area based on a corresponding relationship between a geographical area identifier zone _ id and the regional system information.

Specifically, in step 61, when receiving the regional system information of the current geographic area, the terminal may determine the broadcast window of the regional system information of the current geographic area according to the current geographic area where the terminal is located, the broadcast period of the regional system information of the current geographic area, and the broadcast window length of the regional system information. Then, within a broadcast window of regional system information for a current geographic area, regional system information for the current geographic area is received.

In the embodiment of the present invention, the regional system information of the geographic region is sent by 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. In some cases, the terminal may only need to receive a certain system information message or messages in the regional system information, and need not receive all the system information messages of the regional system information. For convenience of description, the system information message that needs to be received is referred to herein as a target system information message. The terminal can determine a sending subframe of the target system information message according to the set number of a 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 receiving the corresponding system information message in the sending subframe of the target system information message.

One example of obtaining the location of a regional system information broadcast window for a geographic region is provided below:

first, x ═ zone _ id ×, w, where w denotes the length of the broadcast window of the regional system information, is determined.

Then, determining a target radio frame SFN where a broadcasting window of the regional system information is located, wherein the target radio frame SFN meets the following conditions: SFN mod T _ zone is FLOOR (x/10), where T _ zone is a broadcast period of zone system information of a certain zone.

Then, determining a starting subframe of a broadcast window of the regional system information, wherein the subframe number a of the starting subframe meets the following condition: a equals x mod 10.

Thus, through the above steps, the terminal can determine the radio frame and the starting subframe where the regional system information broadcasting window of the specific geographic region is located, so as to receive the regional system information of the specific geographic region according to the determined radio frame and the starting subframe.

The following provides an example of obtaining the location of a particular system information message in regional system information for a geographic region:

in each geographic area, the regional system information to be broadcast is divided into different system information messages, and the different system information messages may have the same broadcast period or different broadcast periods. As shown in fig. 5, it is assumed that the system information messages #1 and #2 constitute a system information message set 1(set #1), the system information messages #3, #4 and #5 constitute a system information message set 2(set #2), and the set #1 and the set #2 together constitute a set list (set list). Assuming that the terminal desires to obtain a certain target system information message, such as system information message #4, of system information of a certain area, the terminal may determine a specific receiving location by:

Then, determining a target radio frame SFN where a broadcast window of the regional system information is located, wherein the target radio frame SFN is the SFN meeting the following conditions:

then, determining a target radio frame SFN where the target system information message needing to be received is located, wherein the target radio frame SFN meets the following conditions: SFN mod T _ si is FLOOR (x/10) + T _ zone (set _ id-1), where T _ si is a broadcast cycle of the target system information message, and set _ id is a position of the system information message set in which the target system information message is located in all system information message sets (set list) of the system information in the area.

Then, determining a starting subframe of a broadcast window of the regional system information, wherein a subframe number a of the starting subframe meets the following condition: a equals x mod 10.

In each of the above examples, the length w of the broadcast window has a unit of milliseconds.

In another example, the access related information includes a correspondence between a frequency point and a network slicing service

Assuming that network slices (network slices) are bound to frequency points, for example, Enhanced Mobile Broadband (eMBB) slice service is provided through 2.6GHz and 4.9GHz frequency points, while Ultra-reliable and Low Latency Communication (URLLC) slice service can only provide service through 4.9GHz frequency points, thereby satisfying the isolation requirement of slices (service) through a resource isolation manner.

As shown in fig. 7, in an actual deployment scenario, the network may only turn on the URLLC slice service in a partial region (e.g. a cell), such as a factory or a hospital, in other words, not all areas covered by the 4.9GHz frequency point support the URLLC slice service.

In order to support the flexible deployment scenario of the radio access network slice (RAN slice) and reduce the signaling overhead, the broadcasting of the slice-related system information may be divided into two stages. The corresponding relation between the broadcast frequency point and the network slicing service in the basic system information indicates whether to turn on/off the corresponding network slicing service in the current geographical area in the regional system information. Specifically, the method can be divided into two configuration modes:

1) the basic system information indicates: the F1 and F2 frequencies may provide eMBB slicing service, and the F2 frequency may provide URLLC slicing service; in regional system information corresponding to geographic region 2(Area2), it is indicated that: the F2 frequency does not provide URLLC slicing service in the current geographic area. Alternatively, the first and second electrodes may be,

2) the basic system information indicates: f1 and F2 frequencies provide eMBB slicing service; the Area system information corresponding to Area1 indicates that: URLLC slicing service may also be provided at the current geographic area F2 frequency.

That is to say, in the embodiment of the present invention, the base station may include, in the basic system information sent by broadcast, a correspondence between a frequency point and a network slicing service, and include, in the regional system information sent by broadcast, indication information indicating whether the network slicing service is activated in a current geographic region. And the terminal determines the network slicing service corresponding to the frequency point of the current geographic area by receiving the corresponding relation, and then can determine whether the related network slicing service is started in the current geographic area or not according to the indication information.

Various methods of embodiments of the present invention have been described above. An apparatus for carrying out the above method is further provided below.

An embodiment of the present invention provides a base station shown in fig. 8, including:

a dividing module 81, configured to divide a geographic range covered by the base station into multiple non-overlapping geographic areas, and number each geographic area to obtain an area identifier of each geographic area;

a broadcasting module 82, configured to broadcast and send system information, where the system information includes regional system information of at least one geographic region.

Through the modules, the embodiment of the invention can broadcast the system information of the region aiming at the geographical region, thereby improving the transmission efficiency of the system information and reducing the receiving power consumption overhead of the terminal.

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

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

Optionally, the regional system information of the geographic region is sent through 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.

Optionally, the system information further includes basic system information, where the basic system information includes at least one of the following information:

accessing the relevant information;

scheduling information of the regional system information.

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

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

optionally, the base station further includes:

the first determining module is used for determining the broadcast window of the regional system information of each geographic area according to the regional identification of each geographic area, the broadcast period of the regional system information of the geographic area and the broadcast window length of the regional system information;

the broadcasting module is further configured to broadcast the corresponding regional system information in a broadcasting window of the regional system information of each geographic region.

Optionally, the base station further includes:

a second determining module, configured to determine, according to a set number of a system information message set to which the system information message in the geographic area belongs, a broadcast period of the regional system information in the geographic area, a broadcast window length of the regional system information, and a broadcast period of the system information message, a transmission subframe of each system information message in the regional system information;

the broadcast module is further configured to broadcast a corresponding system information message in a sending subframe of each system information message in the regional system information.

Optionally, the system information further includes other system information,

It should be noted that the apparatus in this embodiment is a device corresponding to the method shown in fig. 3, and the implementation manners in the above embodiments are all applicable to the embodiment of this device, and the same technical effects can be achieved. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Referring to fig. 9, an embodiment of the present invention provides a structural diagram of a network device, including: a processor 901, a transceiver 902, a memory 903, and a bus interface, wherein:

in this embodiment of the present invention, the network side device further includes: a program stored on a memory 903 and executable on a processor 901, the program when executed by the processor 901 performing the steps of:

broadcasting system information including regional system information for at least one geographic region

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

accessing the relevant information;

scheduling information of the regional system information.

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency location of regional system information;

configuration information for a geographic area;

optionally, the processor further implements the following steps when executing the program:

and broadcasting the corresponding regional system information in the broadcasting window of the regional system information of each geographic region.

Optionally, the processor further implements the following steps when executing the program: determining a sending subframe of each system information message in the system information of the region according to the set number of a system information message set to which the system information message of the geographic region belongs, the broadcast period of the system information of the geographic region, the broadcast window length of the system information of the region and the broadcast period of the system information message;

and broadcasting the corresponding system information message in a sending subframe of each system information message in the regional system information.

Optionally, the system information further includes other system information,

It can be understood that, in the embodiment of the present invention, when being executed by the processor 901, the computer program can implement the processes of the method embodiment shown in fig. 3, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with various circuits representing one or more processors, in particular processor 901, and memory, in particular memory 903, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 902 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 901 is responsible for managing a bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.

It should be noted that the terminal in this embodiment is a device corresponding to the method shown in fig. 3, and the implementation manners in the above embodiments are all applicable to the embodiment of the terminal, and the same technical effects can be achieved. In the device, the transceiver 902 and the memory 903, and the transceiver 902 and the processor 901 may be communicatively connected through a bus interface, and the functions of the processor 901 may also be implemented by the transceiver 902, and the functions of the transceiver 902 may also be implemented by the processor 901. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:

When executed by the processor, the program can implement all implementation manners in the method for sending and receiving system information applied to the base station, and can achieve the same technical effect, and is not described herein again to avoid repetition.

Referring to fig. 10, an embodiment of the present invention provides a terminal, including:

the receiving module 101 is configured to receive, according to a current geographic area where the receiving module is located, regional system information of the current geographic area from a system message sent by a network, where the system information includes regional system information of at least one geographic area.

Through the modules, the terminal provided by the embodiment of the invention can only receive the regional system information of the geographical region where the terminal is located, so that the transmission efficiency of the system information is improved, and the receiving power consumption overhead of the terminal is reduced.

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

accessing the relevant information;

scheduling information of the regional system information.

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

Optionally, the geographic range covered by the base station is divided into a plurality of non-overlapping geographic areas in advance, and each geographic area has a corresponding area identifier; the terminal further comprises:

and the first determining module is used for determining the current geographic area of the mobile terminal according to the geographic position of the mobile terminal and the configuration information of the geographic area.

Optionally, the terminal further includes:

the second determining module is used for determining the broadcast window of the regional system information of the current geographic area according to the current geographic area, the broadcast period of the regional system information of the current geographic area and the broadcast window length of the regional system information;

the receiving module is further configured to receive the regional system information of the current geographic area in a broadcast window of the regional system information of the current geographic area.

Optionally, the terminal further includes:

a third determining module, configured to determine a sending subframe of a target system information message according to a set number of a system information message set to which the target system information message in a current geographic area belongs, a broadcast period of the regional system information in the current geographic area, a broadcast window length of the regional system information, and a broadcast period of the system information message;

the receiving module is further configured to receive the corresponding system information message in the transmission subframe of the target system information message.

Optionally, the system information further includes other system information,

It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 6, and the implementation manners in the above embodiments are all applicable to the embodiment of this apparatus, and the same technical effects can be achieved. The device provided by the embodiment of the present invention can implement all the method steps implemented by the method embodiment, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are not repeated herein.

Referring to fig. 11, a schematic structural diagram of a terminal according to an embodiment of the present invention includes: a processor 1101, a transceiver 1102, a memory 1103, a user interface 1104, and a bus interface.

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

The processor 1101, when executing the program, implements the following steps:

receiving regional system information of the current geographical region from system information sent by a network according to the current geographical region where the system information is located, wherein the system information comprises regional system information of at least one geographical region.

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

accessing the relevant information;

scheduling information of the regional system information.

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

Optionally, the geographic range covered by the base station is divided into a plurality of non-overlapping geographic areas in advance, and each geographic area has a corresponding area identifier; the processor, when executing the program, further implements the steps of:

and determining the current geographical area of the user according to the geographical position of the user and the configuration information of the geographical area.

determining a broadcast window of the regional system information of the current geographical area according to the current geographical area, the broadcast period of the regional system information of the current geographical area and the broadcast window length of the regional system information;

receiving regional system information for a current geographic region within a broadcast window of the regional system information for the current geographic region.

determining a sending subframe of a target system information message according to a set number of a system information message set to which the target system information message of a current geographical area belongs, a broadcasting period of regional system information of the current geographical area, a broadcasting window length of the regional system information and a broadcasting period of the system information message;

and receiving the corresponding system information message in the sending subframe of the target system information message.

Optionally, the system information further includes other system information,

It can be understood that, in the embodiment of the present invention, when the computer program is executed by the processor 1101, each process of the method embodiment shown in fig. 6 can be implemented, and the same technical effect can be achieved.

In fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1101, and various circuits, represented by memory 1103, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1102, which may be a plurality of elements including a transmitter and a receiver, provides a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1104 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 in performing operations.

It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 6, and the implementation manners in the above embodiments are all applied to the embodiment of the apparatus, and the same technical effects can be achieved. In the device, the transceiver 1102 and the memory 1103, and the transceiver 1102 and the processor 1101 may be communicatively connected through a bus interface, and the functions of the processor 1101 may also be implemented by the transceiver 1102, and the functions of the transceiver 1102 may also be implemented by the processor 1101. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

When executed by the processor, the program can implement all the implementation manners in the method for sending and receiving system information applied to the terminal side, and can achieve the same technical effect, and is not described herein again to avoid repetition.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for sending system information is applied to a base station, and is characterized by comprising the following steps:

2. The method of claim 1,

the regional system information includes at least one of the following information:

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

3. The method of claim 1,

the regional system information of the geographic region is sent through 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.

4. The method of claim 1,

the system information further comprises basic system information, wherein the basic system information comprises at least one of the following information:

accessing the relevant information;

scheduling information of the regional system information.

5. The method of claim 3,

the scheduling information of the regional system information comprises at least one of the following information:

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

6. The method of claim 5, further comprising:

determining the broadcast window of the regional system information of each geographical area according to the regional identification of each geographical area, the broadcast period of the regional system information of the geographical area and the broadcast window length of the regional system information;

7. The method of claim 3 or 6, further comprising:

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 in the geographic region belongs, a broadcast period of the regional system information in the geographic region, a broadcast window length of the regional system information and a broadcast period of the system information message;

8. The method of claim 4, wherein the system information further comprises other system information;

the other system information includes: at least one of public warning information and positioning system information.

9. A method for receiving system information, comprising:

10. The method of claim 9,

cell reselection configuration information;

sidelink configuration information;

the internet of vehicles V2X communication configuration information;

11. The method of claim 9,

12. The method of claim 9,

accessing the relevant information;

scheduling information of the regional system information.

13. The method of claim 12,

a broadcast period of regional system information;

a broadcast window length of the regional system information;

broadcast time-frequency position of regional system information;

configuration information for a geographic area;

14. The method of claim 13,

the geographical range covered by the base station is divided into a plurality of non-overlapping geographical areas in advance, and each geographical area is provided with a corresponding area identifier; the method further comprises the following steps:

15. The method of claim 13,

receiving regional system information for the current geographic region from a system message sent by a network, comprising:

16. The method of claim 13, further comprising:

17. The method of claim 12, wherein the system information further comprises other system information,

18. A base station, comprising:

19. A base station comprising a transceiver and a processor, wherein,

20. A terminal, comprising:

21. A terminal comprising a transceiver and a processor, wherein,

22. A communication device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 1 to 17.

23. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 17.