CN111526548B

CN111526548B - Cell selection method, broadcast message sending method, terminal and network equipment

Info

Publication number: CN111526548B
Application number: CN201910116830.3A
Authority: CN
Inventors: 王达
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-02-01
Filing date: 2019-02-15
Publication date: 2022-02-22
Anticipated expiration: 2039-02-15
Also published as: KR20210118920A; CN111526548A; KR102502560B1

Abstract

The embodiment of the invention provides a cell selection method, a broadcast message sending method, a terminal and network equipment, wherein the method comprises the following steps: a terminal receives a broadcast message sent by a network device, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-RAT configuration, a mode of the cross-RAT configuration supported by the network device and a resource position of the cross-RAT configuration supported by the network device; and the terminal selects a cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection. The embodiment of the invention can select the cell which better meets the requirement of the terminal so as to improve the communication performance of the terminal.

Description

Cell selection method, broadcast message sending method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a cell selection method, a broadcast message sending method, a terminal, and a network device.

Background

In practical applications, a terminal often needs to perform cell selection (including cell reselection and/or cell reselection), and currently, since a network device of a Long Term Evolution (LTE) system may provide cross-carrier configuration, when a cell is selected, the terminal may select according to whether the network device provides the cross-carrier configuration, for example: when the local cell cannot directly provide the V2X service, a cell which can provide cross-carrier configuration is preferentially selected. However, the function of the network device in the New Radio (NR) system may be different from that of the network device in the LTE system, and therefore, if a cell is selected according to a cell selection manner in the LTE system, the communication performance of the terminal may be poor when the terminal performs communication in the selected cell.

Disclosure of Invention

The embodiment of the invention provides a cell selection method, a broadcast message sending method, a terminal and network equipment, and aims to solve the problem that the communication performance of the terminal is poor.

The embodiment of the invention provides a cell selection method, which comprises the following steps:

a terminal receives a broadcast message sent by a network device, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device and a resource position of the cross-RAT configuration supported by the network device;

and the terminal selects a cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection.

Optionally, the cell priority order includes: a first cell priority order or a second cell priority order.

Optionally, the terminal performs cell selection according to the broadcast message, including:

and the terminal performs cell selection according to the broadcast message and the cell priority order.

Optionally, if the terminal only supports the service of the first system, the cell priority order is a first cell priority order; alternatively, the first and second electrodes may be,

if the current service of the terminal is the service of a first system, the cell priority sequence is a first cell priority sequence; alternatively, the first and second electrodes may be,

if the terminal supports the service of the first system and the service of a second system, the cell priority order is the second cell priority order; alternatively, the first and second electrodes may be,

and if the current service of the terminal comprises the services of the first system and the second system, the cell priority order is the second cell priority order.

Optionally, the first system is a Long Term Evolution (LTE) system, and the second system is a New Radio (NR) system; or

The first system is an NR system, and the second system is an LTE system.

Optionally, the service is Vehicle-to-everything (V2X) service.

Optionally, the first cell priority order includes at least two of the following cells:

a first cell, a second cell, a third cell and a fourth cell;

wherein the first cell has a higher priority than the second cell, the third cell and the fourth cell, the second cell has a higher priority than or equal to the third cell and the fourth cell, and the third cell has a higher priority than or equal to the fourth cell;

the first cell is a cell providing the service of the first system;

the second cell is a cell for providing cross-carrier configuration service of the first system;

the third cell is a cell which provides the service of the second system and provides cross-RAT configuration and provides a plurality of resource allocation modes for configuring the first system across RATs, or the third cell is a cell which provides the service of the first system and provides a plurality of resource allocation modes for configuring the first system across RATs;

the fourth cell is a cell which provides the service of the second system and provides cross-RAT configuration and only provides one resource allocation mode of the first system configured cross-RAT, or the fourth cell is a cell which provides the service of the first system configured cross-RAT and only provides one resource allocation mode of the first system configured cross-RAT;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

the second cell is a cell which provides service of the second system and provides cross-RAT configuration and provides a plurality of resource allocation modes for configuring the first system cross-RAT, or the second cell is a cell which provides service for configuring the first system cross-RAT and provides a plurality of resource allocation modes for configuring the first system cross-RAT;

the third cell is a cell for providing cross-carrier configuration service of the first system;

the fourth cell is a cell which provides the service of the second system and provides cross-RAT configuration and only provides one resource allocation mode for configuring the first system across RATs, or the fourth cell is a cell which provides the service of the first system across RATs and only provides one resource allocation mode for configuring the first system across RATs.

Optionally, the priority of the fifth cell in the second cell priority order is higher than that of the sixth cell,

wherein, the priority order of at least one cell included in the fifth cell is specified by a standard, or configured by network equipment, or preconfigured;

the priority order of at least one cell included in the sixth cell is specified by a standard, or configured by a network device, or preconfigured.

Optionally, the fifth cell includes at least one of:

a cell providing services of the first system and the second system;

a cell providing a service of the first system;

a cell providing a service of the second system.

Optionally, the sixth cell includes at least one of:

a cell providing a service of cross-carrier configuration of the first system and the second system;

a cell providing cross-carrier configuration of a service of the first system;

a cell providing a service of the second system configured across carriers;

providing a cell that configures traffic of the first system across RATs and providing a cell that configures a plurality of resource allocation patterns of the first system across RATs;

providing cells that configure traffic of the first system across RATs and providing only cells that configure one resource allocation pattern of the first system across RATs;

providing a cell that configures traffic of the second system across RATs and providing a cell that configures a plurality of resource allocation patterns of the second system across RATs;

providing cells that configure traffic of the second system across RATs and providing only cells that configure one resource allocation pattern of the second system across RATs;

providing traffic for the first system, and providing traffic for configuring the second system across RATs, and providing cells for configuring multiple resource allocation patterns of the second system across RATs;

providing traffic of the first system, providing traffic of the second system configured across RATs, and providing only cells configuring one resource allocation pattern of the second system across RATs;

providing traffic of the second system, providing traffic of configuring the first system across RATs, and providing cells configuring a plurality of resource allocation patterns of the first system across RATs;

providing traffic of the second system, providing traffic of the first system configured across RATs, and providing only cells of one resource allocation pattern of the first system configured across RATs;

providing a cell that configures traffic of the first system across carriers, and provides traffic that configures the second system across RATs, and provides multiple resource allocation patterns that configure the second system across RATs;

providing a cell which configures the service of the first system across carriers, and which configures the service of the second system across RATs, and which configures only one resource allocation pattern of the second system across RATs;

providing a cell that configures traffic of the second system across carriers, and provides traffic that configures the first system across RATs, and provides multiple resource allocation patterns that configure the first system across RATs;

providing traffic configuring the second system across carriers, providing traffic configuring the first system across RATs, and providing only cells configuring one resource allocation pattern of the first system across RATs.

Optionally, if the cell priority order includes priorities of multiple cells, the terminal selects a cell with the strongest signal strength from the multiple cells.

Optionally, according to the priority order of the cells, if there is no selectable cell, the terminal uses a pre-configured resource to perform a service.

The embodiment of the invention also provides a method for sending the broadcast message, which comprises the following steps:

the network device sends a broadcast message to a terminal, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, cross-RAT configuration modes supported by the network device and cross-RAT configuration resource positions supported by the network device.

An embodiment of the present invention further provides a terminal, including:

a receiving module, configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device;

and the selection module is used for selecting the cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection.

Optionally, the selection module is configured to perform cell selection according to the cell priority order according to the broadcast message.

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

An embodiment of the present invention further provides a network device, including:

a sending module, configured to send a broadcast message to a terminal, where the broadcast message is used to indicate whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of cross-RAT configuration supported by the network device, and a resource location of cross-RAT configuration supported by the network device.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of cross-RAT configuration supported by the network device, and a resource location of cross-RAT configuration supported by the network device; and is used for carrying on the cell selection according to the said broadcast message, the said cell selection is the cell primary election or cell reselection;

alternatively, the first and second electrodes may be,

the transceiver is configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of cross-RAT configuration supported by the network device, and a resource location of cross-RAT configuration supported by the network device;

and the processor is used for selecting a cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection.

Optionally, the performing cell selection according to the broadcast message includes:

and according to the broadcast message, carrying out cell selection according to the cell priority order.

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

An embodiment of the present invention further provides a network device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to send a broadcast message to a terminal, the broadcast message indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of cross-RAT configuration supported by the network device, and a resource location of cross-RAT configuration supported by the network device.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the cell selection method provided in the embodiments of the present invention, or the computer program, when executed by the processor, implements the steps in the broadcast message sending method provided in the embodiments of the present invention.

In the embodiment of the invention, a terminal receives a broadcast message sent by a network device, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a cross-RAT configuration mode supported by the network device and a cross-RAT configuration resource position supported by the network device; and the terminal selects a cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection. Therefore, the terminal can select the cell according to the RAT configuration, so that the cell more meeting the requirement of the terminal can be selected, and the communication performance of the terminal is improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 2 is a flowchart of a cell selection method according to an embodiment of the present invention;

fig. 3 is a flowchart of a method for sending a broadcast message according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a cell selection method according to an embodiment of the present invention;

fig. 5 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 6 is a block diagram of a network device according to an embodiment of the present invention;

fig. 7 is a block diagram of another terminal according to an embodiment of the present invention;

fig. 8 is a block diagram of another network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a plurality of terminals 11 and a network device 12, where the terminal 11 may be a User Equipment (UE) or other terminal devices, for example: terminal side devices such as a Mobile phone, a tablet Personal Computer (TabLTE Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a vehicle-mounted Device or a Wearable Device (Wearable Device) and the like, it should be noted that a specific type of the terminal is not limited in the embodiment of the present invention. The terminals 11 can perform direct communication (or referred to as direct communication) through a direct communication interface, where a link for direct communication may be referred to as a Sidelink (translated into a direct communication link or a bypass), and an interface corresponding to the Sidelink is referred to as a direct communication interface. The terminals of the direct communication can be all on-line or all off-line, or part of the devices are on-line and part of the devices are off-line. The devices participating in direct communication, i.e. on-line, are located within the coverage of the 3GPP base station communication carrier, and the devices participating in direct communication, i.e. off-line, are not located within the coverage of the 3GPP base station communication carrier. Network device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network device may also be a small station, such as a Low Power Node (LPN), pico, femto, or the network device may be an Access Point (AP); the base station may also be a network node formed by a Central Unit (CU) and a plurality of Distributed Units (DUs) managed and controlled by the CU. It should be noted that the specific type of the network device is not limited in the embodiment of the present invention. It should be noted that the specific type of the network device is not limited in the embodiment of the present invention.

Referring to fig. 2, fig. 2 is a flowchart of a cell selection method according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

201. a terminal receives a broadcast message sent by a network device, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device and a resource position of the cross-RAT configuration supported by the network device;

202. and the terminal selects a cell according to the broadcast message, wherein the cell selection is cell primary selection or cell reselection.

Wherein, step 201 may be receiving a broadcast message sent by one or more network devices, the broadcast message of each network device being used to indicate whether each supports at least one of a cross-RAT configuration, a supported cross-RAT configuration mode, and a supported cross-RAT configuration resource location.

It should be noted that whether the network device supports the cross-RAT configuration may be understood as whether a cell corresponding to the network device supports the cross-RAT configuration, a mode of the cross-RAT configuration supported by the network device may be understood as a mode of the cross-RAT configuration supported by the cell corresponding to the network device, and a resource location of the cross-RAT configuration supported by the network device may be understood as a resource location of the cross-RAT configuration supported by the cell corresponding to the network device.

In addition, when the broadcast message indicates a mode of cross-RAT configuration supported by the network device, the network device may default to support cross-RAT configuration, and when the broadcast message indicates a resource location of cross-RAT configuration supported by the network device, the network device may default to support cross-RAT configuration.

In a preferred embodiment, the broadcast message includes one or more of the following fields:

option 1: an indication field indicating whether cross-RAT configuration is supported;

for example, the field is N bits, N is a positive integer greater than or equal to 1, specifically, 1 bit may be used, and a value of 0 indicates non-support, and a value of 1 indicates support.

Option 2: a resource allocation mode field indicating cross-RAT configuration;

for example, the field is M bits, M is a positive integer greater than or equal to 1, specifically, it may be 2 bits, a value of 11 indicates that all resource allocation modes are supported, a value of 01 or 10 indicates that only one of the resource allocation modes is supported, for example, 01 indicates that only a terminal-selected resource allocation mode is supported, 10 indicates that only a network-scheduled resource allocation mode is supported, and a value of 00 indicates that no cross-RAT configuration is supported, that is, cross-RAT configuration is not supported.

Option 3: a resource location field indicating cross-RAT configuration;

the field indicates the resource location of another RAT configured across RATs, for example, the base station of NR indicates the location of LTE V2X resource (e.g., resource pool configuration, etc.), if the field exists, it indicates that the configuration across RATs is supported, the specifically supported allocation mode may specifically indicate or by default support only the terminal-selected resource allocation mode, because the field already configures the relevant resource pool location, and if the field does not exist, it indicates that the configuration across RATs is not supported, i.e., implicitly indicates that the configuration across RATs is not supported.

It should be noted that the cell selection according to the broadcast message may be performed according to the broadcast message and in combination with other information of the network device, for example: the information may be sent to the terminal by the network device, or measured by the terminal, or preconfigured, and the like, where the information is not limited in this respect. Of course, in some embodiments, the cell selection may be performed only according to the broadcast message, which is not limited to this.

In the embodiment of the present invention, the network device may send broadcast information through the above steps, where the broadcast information indicates at least one of a RAT configuration of the network device, a mode of a cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device. And the terminal equipment receives the broadcast information sent by the network equipment and selects the cell according to the broadcast information. Therefore, the terminal can select the cell according to the RAT configuration, so that the cell more meeting the requirement of the terminal can be selected, and the communication performance of the terminal is improved. In addition, due to the NR system, the network device may support cross-RAT configuration in addition to cross-carrier configuration, and the services supported by the terminal are richer, so the cell selection method provided by the embodiment of the present invention may solve the problem of how to perform cell selection and/or reselection for the terminal, so that the terminal device may select a suitable cell to improve the communication performance of the terminal.

As an optional implementation manner, the terminal performs cell selection according to the broadcast message, including:

The priority order of the cells may be configured in advance, or agreed in a protocol, or configured by a network side, etc.

The cell selection according to the cell priority order may be performed according to the broadcast message, where the terminal determines the type of the cell according to the broadcast message, and determines the priority of each type of cell according to the cell priority order.

Optionally, if the priority order of the cells includes the priorities of multiple cells, the terminal selects a cell with the strongest signal strength from the multiple cells or randomly selects one cell. That is, when a plurality of cells are included in the highest priority among the cells for the terminal to select, the terminal may select a cell having the strongest signal strength among the plurality of cells or randomly select one. Of course, the embodiments of the present invention are not limited, for example: the terminal can select the cell by itself, for example, the terminal selects one cell according to a rule set by itself, that is, selects which cell belongs to the terminal.

For example: that is, if there is no optional cell, the terminal considers that it is in the offline state, and then performs the V2X service using the preconfigured resource, specifically, performs transmission of the service, so as to improve the communication performance of the terminal in the offline state.

It should be noted that the cell priority order may include a plurality of cells, but in practical applications, the number of cells selected by the terminal may be less than the number of cells in the cell priority order, and then the terminal may select, in the process of selecting, a cell with the highest priority among the cells selected by the terminal.

In this embodiment, since the cell selection is performed according to the cell priority order, a cell that better meets the terminal requirement can be selected, so as to further improve the communication performance of the terminal.

It should be noted that, for more clearly describing the technical solution, taking a Long Term Evolution (LTE) system and a New Radio (NR) system as an example, the types of the cells may be divided as follows:

a) the method directly provides LTE V2X service, does not provide cross-carrier configuration, and does not provide cross-RAT configuration;

b) providing cross-carrier configuration LTE V2X traffic, but not cross-RAT configuration;

c) LTE V2X traffic is provided directly, no cross-carrier configuration is provided, but cross-RAT configuration of NR mode1 or mode2 is provided;

d) LTE V2X service is provided directly, no cross-carrier configuration is provided, but cross-RAT configuration NR mode1 and mode2 is provided;

e) providing cross-RAT configured LTE V2X traffic and providing cross-RAT configured LTE mode3 or mode 4;

f) providing cross-RAT configured LTE V2X traffic and providing cross-RAT configured LTE mode3 and mode 4;

g) providing cross-carrier configuration LTE V2X traffic, and also providing cross-RAT configuration NR mode1 or mode 2;

h) providing cross-carrier configuration LTE V2X services, and also providing cross-RAT configuration NR mode1 and mode 2;

i) directly providing NR V2X service, not providing cross-carrier configuration, and not providing cross-RAT configuration;

j) providing cross-carrier configuration NR V2X traffic, but not cross-RAT configuration;

k) directly provide NR V2X services, do not provide cross-carrier configuration, but provide cross-RAT configuration LTE mode3 or mode 4;

l) directly provide NR V2X services, do not provide cross-carrier configuration, but provide cross-RAT configuration LTE mode3 and mode 4;

m) provide cross-RAT configuration NR V2X traffic and provide cross-RAT configuration NR mode1 or mode 2;

n) provide cross-RAT configuration NR V2X traffic and provide cross-RAT configuration NR mode1 and mode 2;

o) provide cross-carrier configuration NR V2X services, and also provide cross-RAT configuration LTE mode3 or mode 4;

p) provides cross-carrier configuration NR V2X services, and also provides cross-RAT configuration LTE mode3 and mode 4.

The NR mode1 may be a resource allocation mode scheduled by a network in direct connection communication of the NR system, and the NR mode2 may be a resource allocation mode selected by a terminal in direct connection communication of the NR system; LTE mode3 may be a resource allocation mode for network scheduling in an LTE system, that is, a resource allocation mode in which a network allocates resources to a terminal according to a direct communication link (Sidelink) BSR (Buffer status reporting) reported by the terminal; LTE mode4 may be a resource allocation mode that is autonomously selected by the terminal in an LTE system, i.e. the terminal selects itself a resource from pre-configured or network broadcast transmission resources for transmission of the direct communication link.

It should be noted that the above-mentioned multiple cells are only examples, and in practical applications, all the above cell types may not be supported in the communication system, and some cell types may not be supported, for example, cell type d or h, because it is difficult to support dynamic configuration across RATs.

The first cell priority order or the second cell priority order may be selected by the terminal, configured by the network side, or configured in advance.

Further, if the terminal only supports the service of the first system, the cell priority order is a first cell priority order; alternatively, the first and second electrodes may be,

In one mode, the first system is a Long Term Evolution (LTE) system, and the second system is a New Radio (NR) system. In another mode, the first system is an NR system, and the second system is an LTE system.

It should be noted that, when the first system is an LTE system, the priority order of the first cells may be different from that when the first system is an NR system.

In addition, the above-mentioned service is Vehicle-to-everything (V2X) service, for example: the traffic of the first system may be referred to as LTE V2X traffic or NR V2X traffic, or the traffic of the second system may be referred to as LTE V2X traffic or NR V2X traffic. In the embodiments of the present invention, for example, but not limited to: the services described above may also be other services that use direct communication.

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

It should be noted that, the service providing the first system may be a service indicating that the first system is directly provided, for example: the first cell is a cell capable of directly providing the V2X service of the first system, i.e., the carrier of the first cell can provide the V2X service of the first system.

The cell providing the service of the first system configured across carriers (inter-carriers) may be a cell which cannot directly provide the service of the first system, and a carrier which can provide the V2X service needs to be configured or indicated, that is, a carrier which can provide the V2X service is configured across carriers, that is, the service of the first system is configured across carriers.

The above-mentioned cell providing the multiple resource allocation patterns of the first system configured across RATs (inter-RAT) may be a cell which cannot directly provide the resource allocation patterns of the first system, and the multiple resource allocation patterns of the first system are configured across RATs.

The cell that provides only one resource allocation pattern for configuring the first system across RATs may not directly provide the resource allocation pattern for the first system, and the one resource allocation pattern for the first system is configured across RATs.

In this embodiment, the terminal can select the most suitable cell according to the priority order.

It should be noted that the first cell, the second cell, the third cell, and the fourth cell refer to cell types, and one or more cells may exist in the same type.

The following description will be given by taking the first system as an LTE system and the service as a V2X service:

when the terminal device supports only the LTE V2X service and performs cell selection/reselection, the priority of selecting a cell is as follows: (note: if there are multiple cells meeting the conditions in the same priority, the terminal equipment selects the cell with the strongest signal strength, or randomly selects one cell, or selects which cell belongs to the terminal equipment to realize)

The first scheme is as follows: one possible priority for selecting a cell is as follows:

i. a cell providing LTE V2X service;

providing a cell with cross-carrier configuration of LTE V2X traffic;

provide NR V2X traffic, provide cross-RAT configured LTE V2X traffic, and provide cells cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports cross-carrier configuration), or provide cross-RAT configured LTE V2X traffic, and provide cells cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports NR V2X traffic);

provide NR V2X traffic and provide cross-RAT configured LTE V2X traffic and provide only cells cross-RAT configured LTE mode3 or LTE mode4 (regardless of whether it supports cross-carrier configuration), or provide cross-RAT configured LTE V2X traffic and provide only cells cross-RAT configured LTE mode3 or LTE mode4 (regardless of whether it supports NR V2X traffic).

The main reasons are as follows: the method includes selecting a cell providing LTE service first, then selecting a cell providing cross-carrier configured LTE service, then selecting a cell providing NR service and supporting configuring all LTE V2X resource allocation modes, or selecting a cell providing cross-RAT configured all LTE V2X resource allocation modes, and finally selecting a cell providing NR service and configuring only LTE V2X resource allocation mode3 or mode4, or selecting a cell providing cross-RAT configured LTE V2X resource allocation mode3 or mode4 only.

Scheme II: another possible priority for selecting a cell is as follows:

i. a cell providing LTE V2X service;

provide NR V2X traffic, provide cross-RAT configured LTE V2X traffic, and provide cells cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports cross-carrier configuration), or, provide cross-RAT configured LTE V2X traffic, and provide cells cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports NR V2X traffic);

providing a cell with cross-carrier configuration of LTE V2X traffic;

support NR V2X traffic and provide cross-RAT configured LTE V2X traffic and provide only cells cross-RAT configured LTE mode3 or LTE mode4 (regardless of whether it supports cross-carrier configuration), or provide cross-RAT configured LTE V2X traffic and provide only cells cross-RAT configured LTE mode3 or LTE mode4 (regardless of whether it supports NR V2X traffic).

The main reasons are as follows: first, a cell providing LTE service is selected, then a cell providing NR service is selected and supports configuring all LTE V2X resource allocation modes, or a cell providing cross-RAT configuring all LTE V2X resource allocation modes is selected, second, a cell providing cross-carrier configuring LTE service is selected, finally a cell providing NR service is selected and configuring only LTE V2X resource allocation mode3 or mode4, or a cell providing cross-RAT configuring LTE V2X resource allocation mode3 or mode4 is selected.

The first system is an NR system, and the service is a V2X service, for example:

when the terminal device supports only the NR V2X service and performs cell selection/reselection, the priority of selecting a cell is as follows: (note: if there are multiple cells meeting the conditions in the same priority, the terminal equipment selects the cell with the strongest signal strength, or randomly selects one cell, or selects which cell belongs to the terminal equipment to realize)

i. a cell providing NR V2X service;

a cell providing cross-carrier configured NR V2X traffic;

provide LTE V2X traffic and provide cross-RAT configured NR V2X traffic and provide cells cross-RAT configured NR mode1 and mode2 (regardless of whether it supports cross-carrier configuration) or provide cross-RAT configured NR V2X traffic and provide cells cross-RAT configured NR mode1 and mode2 (regardless of whether it supports LTE V2X traffic);

provide LTE V2X traffic and provide cross-RAT configured NR V2X traffic and provide cells cross-RAT configured NR mode1 or NR mode2 (regardless of whether it supports cross-carrier configuration) or provide cross-RAT configured NR V2X traffic and provide only cells cross-RAT configured NR mode1 or NR mode2 (regardless of whether it supports LTE V2X traffic).

The main reasons are as follows: selecting a cell providing NR service first, then selecting a cell providing cross-carrier configured NR service, then selecting a cell providing LTE service, providing cross-RAT configured NR V2X service, and providing cross-RAT configured all NR V2X resource allocation modes, or selecting a cell providing cross-RAT configured all NR V2X resource allocation modes, and finally selecting a cell providing LTE service and providing cross-RAT configured NR V2X service, and providing cross-RAT configured NR V2X resource allocation mode1 or mode2 only, or selecting a cell providing cross-RAT configured NR V2X resource allocation mode1 or mode2 only.

Scheme II: another possible priority for selecting a cell is as follows:

i. a cell providing NR V2X service;

cell providing cross-carrier configured NR V2X service

The main reasons are as follows: first, a cell providing NR service is selected, and then, a cell providing LTE service, providing cross-RAT configured NR V2X service, and providing cross-RAT configured all NR V2X resource allocation patterns, or a cell providing cross-RAT configured all NR V2X resource allocation patterns, second, a cell providing cross-carrier configured NR service is selected, and finally, a cell providing LTE service, providing cross-RAT configured NR V2X service, and providing cross-RAT configured NR V2X resource allocation patterns mode1 or mode2 only, or a cell providing cross-RAT configured NR V2X resource allocation patterns mode1 or mode2 only is selected.

It should be noted that the fifth cell and the sixth cell refer to cell types, and the fifth cell and the sixth cell may refer to one or more cell types, that is, the fifth cell and the sixth cell include at least one cell, which means that the fifth cell and the sixth cell include at least one cell type, and the priority order of the one or more cell types is specified by a standard, configured by a network device, or preconfigured. That is, the priority order in the fifth cell and the sixth cell may be changed, specifically, the priority order is specified by a standard, or configured by a network device, or preconfigured, but the priority level of any cell in the fifth cell is higher than that of all cells in the sixth cell.

Preferably, the fifth cell includes at least one of:

a cell providing services of the first system and the second system;

a cell providing a service of the first system;

a cell providing a service of the second system.

It should be noted that the priority order of the cells included in the fifth cell may be changed, specifically, specified by a standard, configured by a network device, or preconfigured. In addition, the priorities of some or all of the above fifth cells may be configured to be the same or different, for example: the priority of the cell providing the service of the first system and the priority of the cell providing the service of the second system are the same, while the priority of the cell providing the service of the first system and the priority of the cell providing the service of the second system are higher than the priority of the two cells, which is not limited, for example: the priority of the cell providing the service of the first system may be higher than the priority of the cell providing the service of the second system, or the priority of the cell providing the service of the second system may be higher than the priority of the cell providing the service of the first system, or the priority of the cell providing the service of the first system may be equal to the priority of the cell providing the service of the second system.

The sixth cell may include at least one of:

a cell providing cross-carrier configuration of a service of the first system;

a cell providing a service of the second system configured across carriers;

It should be noted that the priority order of the sixth cell including the cells may be changed, specifically, specified by a standard, configured by a network device, or preconfigured. In addition, the priorities of some or all of the above sixth cells may be configured to be the same or different, for example: the priority of the cell providing the service of the first system configured cross-carrier and the priority of the cell providing the service of the second system configured cross-carrier are the same, and the priority of the cell providing the service of the first system configured cross-carrier and the priority of the cell providing the service of the second system configured cross-carrier is higher than that of the cell providing the service of the first system configured cross-carrier and the cell providing the service of the second system configured cross-carrier.

It should be noted that, in practical applications, all the cells in the fifth cell and the sixth cell are not necessarily included, for example: it may include a part of the fifth cell and the sixth cell, but the priority of the part of the cells is determined according to the second priority order.

In the following, the first system is an LTE system, the second system is an NR system, and the service is a V2X service for example:

when the terminal device supports the LTE V2X service and the NR V2X service, that is, both services support, and performs cell selection or reselection, the priorities of the selected cells are as follows: (note: if there are multiple cells meeting the conditions in the same priority, the terminal equipment selects the cell with the strongest signal strength, or randomly selects one cell, or selects which cell belongs to the terminal equipment to realize)

The first scheme is as follows: the priority of one possible selected cell may be ranked in the following order (i.e., the higher the priority ranked first):

providing cells of the LTEV2X and NR V2X;

providing a cell of the LTE V2X;

a cell providing the NR V2X;

providing a cell in which the LTE V2X and the NR V2X are configured across carriers;

providing a cell configuring the LTE V2X across carriers;

providing a cell in which the NR V2X is configured across carriers;

providing a cell that configures the LTE V2X across RATs, and providing a cell that configures a plurality of resource allocation patterns of the LTE across RATs;

providing a cell that configures the LTE V2X across RATs, and providing only a cell that configures one resource allocation pattern of the LTE across RATs;

providing a cell that configures the NR V2X across RATs, and providing a cell that configures a plurality of resource allocation patterns of the NR across RATs;

providing a cell that configures the NR V2X across RATs and only a cell that configures one resource allocation pattern of the NR across RATs;

providing the LTE V2X, and providing a cell that configures the NR V2X across RATs, and provides a plurality of resource allocation patterns that configure the NR across RATs;

providing the LTE V2X, and providing cells that configure the NR V2X across RATs, and provide only one resource allocation pattern for configuring the NR across RATs;

providing the NR V2X, and providing a cell that configures the LTE V2X across RATs, and provides a plurality of resource allocation patterns that configure the LTE across RATs;

providing the NR V2X, and providing a cell that configures the LTE V2X across RATs, and that only provides one resource allocation pattern that configures the LTE across RATs;

providing a cell that configures the LTE V2X across carriers, and that configures the NR V2X across RATs, and that configures multiple resource allocation patterns of the NR across RATs;

providing a cell that configures the LTE V2X across carriers, and that configures the NR V2X across RATs, and that only provides one resource allocation pattern for configuring the NR across RATs;

providing a cell that configures the NR V2X across carriers, and that configures the LTE V2X across RATs, and that configures multiple resource allocation patterns of the LTE across RATs;

providing a cell that configures the NR V2X across carriers, and provides a cell that configures the LTE V2X across RATs, and provides only one resource allocation pattern for configuring the LTE across RATs.

Scheme II: the priority of one possible selected cell may be ranked in the following order (i.e., the higher the priority ranked first):

providing cells of the LTEV2X and NR V2X;

a cell providing the NR V2X;

providing a cell of the LTE V2X;

providing a cell in which the NR V2X is configured across carriers;

providing a cell configuring the LTE V2X across carriers;

providing a cell that configures the LTE V2X across RATs, and providing only a cell that configures one resource allocation pattern of the LTE across RATs; providing the NR V2X, and providing a cell that configures the LTE V2X across RATs, and provides a plurality of resource allocation patterns that configure the LTE across RATs;

providing a cell that configures the NR V2X across carriers, and that configures the LTE V2X across RATs, and that configures only one resource allocation pattern of the LTE across RATs;

providing a cell that configures the LTE V2X across carriers, and that configures the NR V2X across RATs, and that configures only one resource allocation pattern for the NR across RATs.

The third scheme is as follows: the priority of one possible selected cell may be ranked in the following order (i.e., the higher the priority ranked first):

providing cells of the LTEV2X and NR V2X;

a cell providing the NR V2X;

providing a cell of the LTE V2X;

providing a cell in which the NR V2X is configured across carriers;

providing a cell configuring the LTE V2X across carriers;

providing the LTE V2X, and providing cells that configure the NR V2X across RATs, and only provide one resource allocation pattern that configures the NR across RATs.

It should be noted that the above three schemes are only examples, and in the above three schemes, in practical applications, not all the cells listed above are necessarily included, and may include some of the cells listed above, but the priority order of the some of the cells is also according to the above arrangement, that is, the priority of the first part of the cells is higher, or the priorities of some of the cells may also be the same.

Referring to fig. 3, fig. 3 is a flowchart of a method for sending a broadcast message according to an embodiment of the present invention, as shown in fig. 3, including the following steps:

301. the network device sends a broadcast message to a terminal, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) configuration, cross-RAT configuration modes supported by the network device and cross-RAT configuration resource positions supported by the network device.

It should be noted that, in this embodiment, the terminal may be a terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal in the method embodiment of the present invention may be implemented by the terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

Referring now to fig. 4, the method provided by the embodiments of the present invention is illustrated in three embodiments as follows:

example 1:

in this embodiment, when the terminal device only supports the LTE V2X service, cell selection/reselection is performed

The flow of this embodiment is schematically shown in fig. 4, and the steps in the above flow chart are described as follows:

1. network equipment sends broadcast information (terminal receiving network equipment sent broadcast message)

Specifically, the broadcast message includes one or more of the following fields:

Option 2: a resource allocation mode field indicating cross-RAT configuration;

Option 3: a resource location field indicating cross-RAT configuration;

2. And the terminal equipment selects the cell according to the broadcast information.

The following priority order is exemplified in this step, and other priority orders may refer to the corresponding descriptions of this priority order, which is not described again:

i. a cell providing LTE V2X service;

providing a cell with cross-carrier configuration of LTE V2X traffic;

The method comprises the following specific steps:

preferentially selecting a cell providing LTE V2X service;

if there are multiple cells meeting the conditions, the terminal device selects the cell with the strongest signal strength, or randomly selects one cell, or selects which cell belongs to the terminal device, as follows.

If the cell is not searched, selecting a cell providing cross-carrier configuration LTE V2X service according to the broadcast information;

if the cell is not searched, selecting a cell providing an NR V2X service, providing a cross-RAT configured LTE V2X service, and providing a cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports cross-carrier configuration), or selecting a cell providing a cross-RAT configured LTE V2X service, and providing a cross-RAT configured LTE mode3 and mode4 (regardless of whether it supports NR V2X service), according to the broadcast information;

if the cell is not searched, according to the broadcast information, selecting a cell providing NR V2X service and providing cross-RAT configured LTE V2X service, and providing only a cell configured with LTE mode3 or LTE mode4 (regardless of whether cross-carrier configuration is supported) cross-RAT, or selecting a cell providing cross-RAT configured LTE V2X service and providing only a cell configured with LTE mode3 or LTE mode4 (regardless of whether NR V2X service is supported).

And if no cell meeting the conditions is searched, the terminal is considered to be out of the cell coverage, and the terminal selects resources by using a pre-configured resource pool according to the pre-configured information to carry out the V2X service.

Example 2:

when the terminal equipment only supports the NR V2X service, the cell selection or reselection is carried out

The flow chart of this embodiment is also shown in fig. 4, and the steps in the above flow chart are described as follows:

1. network equipment sends broadcast information (terminal equipment receives broadcast information sent by network equipment)

Option 2: a resource allocation mode field indicating cross-RAT configuration;

Option 3: a resource location field indicating cross-RAT configuration;

i. a cell providing NR V2X service;

a cell providing cross-carrier configured NR V2X traffic;

Preferentially selecting a cell providing the NR V2X service according to the broadcast information;

If the cell is not searched, selecting a cell providing cross-carrier configuration NR V2X service according to the broadcast information;

if the cell is not searched, selecting a cell providing an LTE V2X service and providing a cross-RAT configuration NR V2X service and providing a cross-RAT configuration NR mode1 and mode2 (regardless of whether cross-carrier configuration is supported) or selecting a cell providing a cross-RAT configuration NR V2X service and providing a cross-RAT configuration NR mode1 and mode2 (regardless of whether LTE V2X service is supported) according to the broadcast information;

if the cell is not searched, selecting a cell providing LTE V2X service and providing cross-RAT configuration NR V2X service and providing cross-RAT configuration NR mode1 or NR mode2 (regardless of whether cross-carrier configuration is supported) or selecting a cell providing cross-RAT configuration NR V2X service and providing cross-RAT configuration NR mode1 or NR mode2 (regardless of whether LTE V2X service is supported) according to the broadcast information;

if no cell meeting the conditions is searched, the terminal is considered to be out of the cell coverage, and the terminal selects resources by using a pre-configured resource pool according to pre-configured information to carry out the V2X service

Example 3:

when the terminal equipment supports the LTE V2X service and the NR V2X service, namely the terminal equipment supports both the LTE V2X service and the NR V2X service, the terminal equipment performs cell selection or reselection

Option 2: a resource allocation mode field indicating cross-RAT configuration;

Option 3: a resource location field indicating cross-RAT configuration;

providing cells of the LTEV2X and NR V2X;

providing a cell of the LTE V2X;

a cell providing the NR V2X;

providing a cell configuring the LTE V2X across carriers;

providing a cell in which the NR V2X is configured across carriers;

Preferentially selecting a cell providing the LTEV2X and NR V2X according to broadcast information;

If the cell is not searched, selecting the cell providing the LTE V2X according to broadcast information;

if the above cell is not searched, selecting a cell providing the NR V2X according to broadcast information;

if the cell is not searched, selecting a cell providing cross-carrier configuration of the LTE V2X and the NR V2X according to broadcast information;

if the cell is not searched, selecting a cell providing cross-carrier configuration of the LTE V2X according to broadcast information;

if the cell is not searched, selecting a cell providing the cross-carrier configuration NR V2X according to broadcast information;

if the cell is not searched, selecting a cell providing cross-RAT configuration of the LTE V2X and providing a plurality of resource allocation modes of the cross-RAT configuration of the LTE according to broadcast information;

if the cell is not searched, selecting a cell providing cross-RAT configuration of the LTE V2X according to broadcast information, and only providing a cell configuring one resource allocation mode of the LTE;

if the cell is not searched, selecting a cell providing the NR V2X configured across RATs and providing a plurality of resource allocation patterns of the NR configured across RATs according to broadcast information;

if the cell is not searched, selecting a cell providing the NR V2X configured across RATs and providing only one resource allocation pattern of the NR configured across RATs according to broadcast information;

if the cell is not searched, selecting a cell which provides the LTE V2X, provides the NR V2X configured across the RATs and provides a plurality of resource allocation modes of the NR configured across the RATs according to broadcast information;

if the cell is not searched, selecting a cell which provides the LTE V2X, provides the NR V2X configured across the RATs and only provides one resource allocation mode for configuring the NR across the RATs according to broadcast information;

if the cell is not searched, selecting a cell which provides the NR V2X, provides the cross-RAT configuration of the LTE V2X and provides a plurality of resource allocation modes for the cross-RAT configuration of the LTE according to broadcast information;

if the cell is not searched, selecting a cell which provides the NR V2X, provides the LTE V2X configured across RATs and provides only one resource allocation mode of the LTE configured across RATs according to broadcast information;

if the cell is not searched, selecting a cell which provides cross-carrier configuration of the LTE V2X, cross-RAT configuration of the NR V2X and a plurality of resource allocation modes for cross-RAT configuration of the NR according to broadcast information;

if the cells are not searched, selecting the cells which provide the cross-carrier configuration of the LTE V2X, provide the cross-RAT configuration of the NR V2X and only provide one resource allocation mode of the cross-RAT configuration of the NR according to broadcast information;

if the cell is not searched, selecting a cell which provides cross-carrier configuration for the NR V2X, provides cross-RAT configuration for the LTE V2X and provides a plurality of resource allocation modes for cross-RAT configuration for the LTE according to broadcast information;

if the cells are not searched, selecting the cells which provide cross-carrier configuration of the NR V2X, provide cross-RAT configuration of the LTE V2X and provide only one resource allocation mode of the cross-RAT configuration of the LTE according to broadcast information.

Referring to fig. 5, fig. 5 is a structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 5, a terminal 500 includes:

a receiving module 501, configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device;

a selecting module 502, configured to perform cell selection according to the broadcast message, where the cell selection is cell primary selection or cell reselection.

Optionally, the selecting module 502 is configured to perform cell selection according to the cell priority order according to the broadcast message.

Optionally, the first system is an LTE system, and the second system is an NR system; or

The first system is an NR system, and the second system is an LTE system.

Optionally, the service is a V2X service.

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

Optionally, the fifth cell includes at least one of:

a cell providing services of the first system and the second system;

a cell providing a service of the first system;

a cell providing a service of the second system.

Optionally, the sixth cell includes at least one of:

a cell providing cross-carrier configuration of a service of the first system;

a cell providing a service of the second system configured across carriers;

Optionally, if the priority order of the cells includes the priorities of multiple cells, the terminal selects a cell with the strongest signal strength from the multiple cells, or randomly selects one cell.

Referring to fig. 5, fig. 5 is a structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 5, the network device 500 includes:

a sending module 501, configured to send a broadcast message to a terminal, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device.

It should be noted that, the network device in this embodiment may be the network device in any implementation manner in the method embodiment in the embodiment of the present invention, and any implementation manner of the network device in the method embodiment in the embodiment of the present invention may be implemented by the network device in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 6, fig. 6 is a structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 6, the terminal includes: a transceiver 610, a memory 620, a processor 600, and a program stored on the memory 620 and executable on the processor, wherein:

the transceiver 610 is configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device; and is used for carrying on the cell selection according to the said broadcast message, the said cell selection is the cell primary election or cell reselection;

alternatively, the first and second electrodes may be,

the transceiver 610 is configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device;

the processor 600 is configured to perform cell selection according to the broadcast message, where the cell selection is cell primary selection or cell reselection.

The transceiver 610 may be used for receiving and transmitting data under the control of the processor 600.

In FIG. 6, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. 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 610 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 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

It should be noted that the memory 620 is not limited to be on the terminal, and the memory 620 and the processor 600 may be separated in different geographical locations.

The first system is an NR system, and the second system is an LTE system.

Optionally, the service is a V2X service.

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

Optionally, the fifth cell includes at least one of:

a cell providing services of the first system and the second system;

a cell providing a service of the first system;

a cell providing a service of the second system.

Optionally, the sixth cell includes at least one of:

a cell providing cross-carrier configuration of a service of the first system;

a cell providing a service of the second system configured across carriers;

Referring to fig. 7, fig. 7 is a structural diagram of another network device according to an embodiment of the present invention, and as shown in fig. 7, the network device includes: a transceiver 710, a memory 720, a processor 700, and a program stored on the memory 720 and executable on the processor, wherein:

the transceiver 710 is configured to send a broadcast message to a terminal, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a mode of the cross-RAT configuration supported by the network device, and a resource location of the cross-RAT configuration supported by the network device.

The transceiver 710 may be used for receiving and transmitting data under the control of the processor 700.

In FIG. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. 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 710 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 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.

It should be noted that the memory 720 is not limited to only network devices, and the memory 720 and the processor 700 may be separated in different geographical locations.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the method for transmitting an energy saving signal at a terminal side provided in the embodiment of the present invention, or the computer program is executed by the processor to implement the steps in the method for transmitting an energy saving signal at a network device side provided in the embodiment of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus 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.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for cell selection, comprising:

the terminal receives a broadcast message sent by a network device, wherein the broadcast message is used for indicating whether the network device supports at least one of cross-Radio Access Technology (RAT) vehicle-to-anything (V2X) configuration, cross-RAT (V2X) configuration supported by the network device and cross-RAT (V2X) configuration supported by the network device;

2. The method of claim 1, wherein the terminal performing cell selection based on the broadcast message comprises:

3. The method of claim 2, wherein the cell priority order comprises: a first cell priority order or a second cell priority order.

4. The method of claim 3, wherein the cell priority order is a first cell priority order if the terminal supports only the traffic of the first system; alternatively, the first and second electrodes may be,

5. The method of claim 4, wherein the first system is a Long Term Evolution (LTE) system, and the second system is a new air interface (NR) system; or

The first system is an NR system, and the second system is an LTE system.

6. The method of claim 4, wherein the traffic is vehicle-to-anything V2X traffic.

7. The method according to claim 3 or 4, wherein the first cell priority order comprises at least two of the following cells:

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing services of a first system;

the third cell is a cell which provides service of a second system and provides cross-RAT configuration and provides a plurality of resource allocation modes for configuring the first system cross-RAT, or the third cell is a cell which provides service for configuring the first system cross-RAT and provides a plurality of resource allocation modes for configuring the first system cross-RAT;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

8. The method of claim 3 or 4, wherein the fifth cell is higher priority than the sixth cell in the second cell priority order,

9. The method of claim 8, wherein the fifth cell comprises at least one of:

a cell providing services of a first system and a second system;

a cell providing a service of the first system;

a cell providing a service of the second system.

10. The method of claim 8, wherein the sixth cell comprises at least one of:

providing a cell for cross-carrier configuration of services of a first system and a second system;

a cell providing cross-carrier configuration of a service of the first system;

a cell providing a service of the second system configured across carriers;

11. The method of claim 2, wherein if the cell priority order includes priorities of a plurality of cells, the terminal selects a cell having a strongest signal strength among the plurality of cells.

12. The method according to any of claims 2 to 6, wherein according to the cell priority order, if there is no optional cell, the terminal uses pre-configured resources for traffic.

13. A method for transmitting a broadcast message, comprising:

a network device sends a broadcast message to a terminal indicating whether the network device supports at least one of cross-RAT vehicle-to-anything V2X configuration, cross-RAT V2X configuration supported by the network device, and cross-RAT V2X configuration supported by the network device.

14. A terminal, comprising:

a receiving module, configured to receive a broadcast message sent by a network device, the broadcast message indicating whether the network device supports at least one of cross-RAT vehicle-to-anything V2X configuration, cross-RAT V2X configuration supported by the network device, and cross-RAT V2X configuration supported by the network device;

15. The terminal of claim 14, wherein the selection module is configured to perform cell selection in a cell priority order based on the broadcast message.

16. The terminal of claim 15, wherein the cell priority order is a first cell priority order if the terminal supports only the traffic of the first system; alternatively, the first and second electrodes may be,

if the terminal supports the service of the first system and the service of the second system, the cell priority order is a second cell priority order; alternatively, the first and second electrodes may be,

17. The terminal of claim 16, wherein the first cell priority order includes at least two of the following cells:

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

18. The terminal of claim 16, wherein a fifth cell in the second cell priority order has a higher priority than a sixth cell,

19. A network device, comprising:

a sending module configured to send a broadcast message to a terminal, the broadcast message indicating whether the network device supports at least one of a cross-RAT vehicle-to-anything V2X configuration, a cross-RAT V2X configuration supported by the network device, and a cross-RAT V2X configuration supported by the network device.

20. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to receive a broadcast message sent by a network device, the broadcast message indicating whether the network device supports at least one of a cross-RAT vehicle-to-anything V2X configuration, a cross-RAT V2X configuration supported by the network device, and a cross-RAT V2X configuration supported by the network device; and is used for carrying on the cell selection according to the said broadcast message, the said cell selection is the cell primary election or cell reselection;

alternatively, the first and second electrodes may be,

the transceiver is configured to receive a broadcast message sent by a network device, where the broadcast message is used to indicate whether the network device supports at least one of a cross-Radio Access Technology (RAT) configuration, a cross-RAT configuration supported resource allocation pattern supported by the network device, and a cross-RAT configuration supported resource location supported by the network device;

21. The terminal of claim 20, wherein said performing cell selection based on said broadcast message comprises:

22. The terminal of claim 21, wherein the cell priority order is a first cell priority order if the terminal supports only the traffic of the first system; alternatively, the first and second electrodes may be,

23. The terminal of claim 22, wherein the first cell priority order includes at least two of the following cells:

a first cell, a second cell, a third cell and a fourth cell;

the first cell is a cell providing the service of the first system;

alternatively, the first and second electrodes may be,

the first cell is a cell providing the service of the first system;

24. The terminal of claim 22, wherein a fifth cell in the second cell priority order has a higher priority than a sixth cell,

25. A network device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to send a broadcast message to a terminal indicating whether the network device supports at least one of cross-RAT V2X configuration, cross-RAT V2X configuration supported by the network device, and cross-RAT V2X configuration supported by the network device.

26. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps in the cell selection method according to any one of claims 1 to 12, or which, when being executed by a processor, carries out the steps in the broadcast message transmission method according to claim 13.