CN112399500B

CN112399500B - Information transmission method, terminal and network equipment

Info

Publication number: CN112399500B
Application number: CN201910760445.2A
Authority: CN
Inventors: 刘俊; 常俊仁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2022-05-31
Anticipated expiration: 2039-08-16
Also published as: WO2021031705A1; CN112399500A

Abstract

The embodiment of the application discloses an information transmission method, a terminal and network equipment, which are used for reducing the probability of service interruption after cell reselection and improving user experience in the cell reselection process. The information transmission method comprises the following steps: the terminal obtains first information in system information broadcasted by the network equipment, wherein the first information is used for indicating whether a resource pool is effective in a neighboring cell of a service cell. The terminal judges whether the resource pool is effective in the adjacent cells of the serving cell based on the first information through the first information in the system information broadcasted by the network equipment, so that the terminal can select the adjacent cells of the serving cell with the effective resource pool to perform cell reselection, and the original resource pool is continuously used after the cell reselection, thereby avoiding the time delay caused by replacing the resource pool after the cell reselection.

Description

Information transmission method, terminal and network equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an information transmission method, a terminal and network equipment.

Background

Cell reselection (cell reselection) refers to a process in which a terminal in an IDLE state (IDLE state)/INACTIVE state (INACTIVE state) selects a target cell from a plurality of neighboring cells of a serving cell to provide a service signal for the terminal by monitoring signal qualities of the serving cell and the neighboring cells of the serving cell, wherein the target cell is a neighboring cell capable of providing a service signal with the highest signal quality for the terminal.

Currently, the resource pool configuration of the terminal may be area-effective, which means that the resource pool may be effective in the serving cell and other non-serving cells, or non-area-effective, which means that the resource pool is only effective in the serving cell.

In the existing cell reselection technology, a terminal does not consider whether a resource pool currently used by the terminal is valid in an area when determining a reselected cell, and then after the terminal reselects another cell, the terminal determines whether the current resource pool configuration of the terminal is valid in a new cell, and if the current resource pool configuration is invalid, new sensing needs to be performed on the new resource pool configuration acquired from system information broadcast by the new cell so as to select resources for data transmission. Compared with the method for continuously sensing the current resource pool, sensing the new resource pool by the terminal additionally brings at least 1s of time delay, so that communication interruption between the terminal and other equipment can be caused, and further user experience is influenced.

Disclosure of Invention

The embodiment of the application provides an information transmission method, a terminal and network equipment, which are used for reducing time delay caused by cell reselection, reducing the probability of service interruption after service reselection and improving user experience in the cell reselection process.

In a first aspect, an embodiment of the present application provides an information transmission method, including: the terminal acquires first information in system information broadcasted by the network equipment, wherein the first information is used for indicating whether a resource pool is effective in a neighboring cell of a serving cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides. In the technical scheme of the first aspect, the terminal determines, through the first information in the system information broadcast by the network device, whether the resource pool is valid in the neighboring cell of the serving cell based on the first information, so that the terminal can select the neighboring cell of the serving cell in which the resource pool is valid to perform cell reselection, and continue to use the original resource pool after reselection, thereby avoiding a time delay caused by replacing the resource pool after reselection.

In a possible implementation manner of the first aspect, if the resource pool currently used by the terminal is valid in the area, the terminal acquires first information in the system information broadcast by the network device. The resource pool currently used by the terminal is valid, which indicates that the resource pool can be used in a non-service cell, and the terminal acquires the first information under the condition, so that the terminal can be prevented from blindly acquiring the first information.

In a possible implementation manner of the first aspect, the obtaining, by the terminal, first information in the system information broadcasted by the network device may be that the terminal determines, in a serving cell, whether a resource pool currently used by the terminal is valid in a neighboring cell of the serving cell.

In a possible implementation manner of the first aspect, the acquiring, by the terminal, first information in the system information broadcast by the network device includes: and the terminal acquires the first information in a system information block n and/or m broadcasted by the service cell, wherein n and m are integers more than or equal to 1, and m and n are unequal. The terminal may carry the first information in one or any two system information blocks of the serving cell.

In a possible implementation manner of the first aspect, the acquiring, by the terminal, first information in system information broadcasted by a network device includes: the terminal acquires a system information block 1 broadcasted by a neighboring cell of the serving cell and the first information in a system information block n and/or m of the serving cell, wherein n and m are integers greater than or equal to 1, and m and n are unequal.

In a possible implementation manner of the first aspect, the acquiring, by the terminal, first information broadcasted by the network device in the system information includes: and the terminal acquires the first information in a system information block n broadcasted by the adjacent cell of the service cell, wherein n is an integer greater than or equal to 1.

In a possible implementation manner of the first aspect, the acquiring, by the terminal, first information of the network device in the system information includes: the terminal acquires a system information block 1 broadcasted by an adjacent cell of the serving cell and/or the first information in a system information block n, wherein n is an integer greater than or equal to 2.

In a possible implementation manner of the first aspect, the acquiring, by the terminal, first information of the network device in the system information includes: and the terminal acquires the first information from system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein n and m are integers which are more than or equal to 2, and m and n are unequal.

In a possible implementation manner of the first aspect, the method further includes: if the second information is the same as the first information, the terminal determines that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell, wherein the second information is used for indicating that the resource pool area currently used by the terminal is valid, and the first information and the second information both include at least one of the following: area identification, resource pool version identification, public land mobile network identification.

In a possible implementation manner of the first aspect, the first information includes: a first resource pool identifier corresponding to a resource pool currently used by the terminal, and/or validity information corresponding to the first resource pool identifier, where the validity information includes: the resource pool currently used by the terminal is valid in the neighboring cell of the serving cell, or the resource pool currently used by the terminal is invalid in the neighboring cell of the serving cell. The method further comprises the following steps: if the first information includes a first resource pool identifier corresponding to the resource pool currently used by the terminal, and the validity information corresponding to the first resource pool identifier is valid, the terminal determines that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell, and the first information includes: at least one resource pool identification and validity information corresponding to each resource pool identification. Optionally, if the first information does not include the identifier corresponding to the resource pool currently used by the terminal, the terminal determines that the resource pool currently used by the terminal is configured in the neighboring cell of the serving cell in an invalid manner.

In a possible implementation manner of the first aspect, the first information may include: at least one of a resource pool identifier, validity information corresponding to the resource pool identifier, a resource pool version identifier, and a public land mobile network identifier;

the method further comprises the following steps: and if the resource pool version identifier and/or the public land mobile network identifier in the first information are the same as the second information, the terminal determines that the resource pool configuration currently used by the terminal is effective in the adjacent cell of the serving cell.

In a possible implementation manner of the first aspect, the method further includes: if the cell identifier list corresponding to the resource pool currently used by the terminal includes the cell identifier of the neighboring cell of the serving cell, and/or the first information is the same as the second information, the terminal determines that the resource pool currently used by the terminal is configured to be valid in the neighboring cell of the serving cell, the second information is used for indicating that the resource pool area currently used by the terminal is valid, and the first information and the second information both include at least one of the following: a resource pool version identification and a public land mobile network identification.

In a possible implementation manner of the first aspect, the second information corresponds to the serving cell, or the second information corresponds to a resource pool available in a region of the serving cell.

In a possible implementation manner of the first aspect, the method further includes: if the resource pool currently used by the terminal is valid, the terminal selects a first cell which has the maximum R value in the candidate cells and is valid in the candidate cells in which the resource pool currently used by the terminal is configured, wherein the R value is determined according to an R criterion, and the candidate cells are cells which meet cell reselection conditions in adjacent cells of the serving cell.

In a possible implementation manner of the first aspect, the method further includes: and the terminal executes verification operation on the first cell to obtain a first verification result.

In a possible implementation manner of the first aspect, the method further includes: and if the first check result is non-access prohibition, the terminal determines that the first cell is a reselected cell.

In a possible implementation manner of the first aspect, the method further includes: and if the first check result is that access is forbidden, the terminal removes the first cell from the candidate cell, or removes the first cell from the candidate cell within a preset time length.

In a possible implementation manner of the first aspect, the method further includes: if the check results corresponding to N valid cells configured in the candidate cells by the resource pool currently used by the terminal in the candidate cells are all prohibited to access, the terminal determines that the cell with the largest R value and which is not prohibited to access in the candidate cells is a reselected cell, and the N cells are part or all of the candidate cells.

In a possible implementation manner of the first aspect, the method further includes: if the terminal currently uses the first resource pool with the effective area, the terminal selects a second cell with the maximum R value in the candidate cells, wherein the R value is determined according to an R criterion, and the candidate cells are cells meeting cell reselection conditions in adjacent cells of the serving cell; and the terminal executes the check operation on the second cell to obtain a second check result.

In a possible implementation manner of the first aspect, the method further includes: and if the second check result is non-forbidden access and the resource pool configuration currently used by the terminal is effective in the second cell, the terminal determines that the second cell is a reselected cell.

In a possible implementation manner of the first aspect, the method further includes: and if the second check result is that access is forbidden, the terminal removes the second cell from the candidate cell, or removes the second cell from the candidate cell within a preset time length.

In a possible implementation manner of the first aspect, the method further includes: and if the resource pool configuration currently used by the terminal is invalid in N cells of which the verification results are non-access-forbidden cells in the candidate cells, the terminal determines the cell which has the maximum R value and is not access-forbidden cells in the candidate cells as a reselected cell, wherein the N cells are part or all of the candidate cells.

In a possible implementation manner of the first aspect, the method further includes: the terminal sets the frequency point priority of the side link configuration providing the public wireless access technology to be the highest; wherein the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

In a possible implementation manner of the first aspect, the setting, by the terminal, a frequency point priority of a sidelink configuration providing a public radio access technology to be highest includes: and if the resource pool currently used by the terminal is effective, the terminal configures a side link providing the public wireless access technology in the candidate cell, and the frequency point priority of the frequency point of the effective cell in the adjacent cells of the service cell configured by the resource pool currently used by the terminal is set to be the highest.

In a possible implementation manner of the first aspect, the method further includes: and the terminal determines the relative priority between the priorities of the highest frequency points according to the first priority or the second priority.

In a possible implementation manner of the first aspect, the resource pool currently used by the terminal includes a resource pool corresponding to a side link in the internet of vehicles.

In a second aspect, an embodiment of the present application provides an information transmission method, including: the network equipment broadcasts first information in the system information, wherein the first information is used for indicating whether the resource pool is effective in the adjacent cells of the service cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides.

In a possible implementation manner of the second aspect, the broadcasting, by the network device, the first information in the system information includes: the network equipment broadcasts the first information in a system information block n and/or m of the service cell, wherein n and m are integers which are larger than or equal to 1, and m and n are not equal.

In a possible implementation manner of the second aspect, the broadcasting, by the network device, the first information in the system information includes: the network device broadcasts the first information in a system information block 1 of a neighboring cell of the serving cell and a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal to each other.

In a possible implementation manner of the second aspect, the broadcasting, by the network device, the first information in the system information includes: the network equipment broadcasts the first information in a system information block n of a neighboring cell of the serving cell, where n is an integer greater than or equal to 1.

In a possible implementation manner of the second aspect, the broadcasting, by the network device, the first information in the system information includes: the network equipment broadcasts the first information in a system information block 1 and/or a system information block n of a neighboring cell of the serving cell, wherein n is an integer greater than or equal to 2.

In a possible implementation manner of the second aspect, the broadcasting, by the network device, the first information in the system information includes: and the network equipment broadcasts the first information in system information blocks m and n broadcast by adjacent cells of the service cell, wherein both n and m are integers which are more than or equal to 2, and m and n are unequal.

In one possible implementation manner of the second aspect, the first information includes at least one of: an area identifier, a resource pool version identifier and a public land mobile network identifier; or, the first information includes at least one of: cell identity, resource pool version identity and public land mobile network identity.

In a possible implementation manner of the second aspect, the resource pool currently used by the terminal includes a resource pool corresponding to a side link of the internet of vehicles.

In a third aspect, an embodiment of the present application provides a method for determining a frequency point priority, including: the terminal acquires a first priority and a second priority, wherein the first priority is the frequency point priority of the service transmission of the vehicle networking side link, and the second priority is the frequency point priority of the service transmission of the vehicle networking side link; and the terminal determines the first priority or the second priority as the frequency point priority according to the transmission configuration of the Internet of vehicles service.

In a possible implementation manner of the third aspect, the determining, by the terminal according to the transmission configuration of the car networking service, that the first priority or the second priority is a frequency point priority includes: and if the terminal is configured to transmit the Internet of vehicles service, the terminal determines that the second priority is the frequency point priority.

In a possible implementation manner of the third aspect, the determining, by the terminal according to the transmission configuration of the car networking service, that the first priority or the second priority is a frequency point priority includes: and if the terminal is configured not to transmit the Internet of vehicles service, the terminal determines that the first priority is the frequency point priority.

In a fourth aspect, an embodiment of the present application provides a method for setting a priority of a frequency point, including: the terminal determines the side link configuration of the public wireless access technology, wherein the side link configuration of the public wireless access technology refers to the side link configuration of the same wireless access technology between the side link configurations of any two or three types of wireless access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, side link configuration of wireless access technology required by terminal service; and the terminal sets the frequency point priority of the side link configuration providing the public wireless access technology to be the highest.

In a possible implementation manner of the fourth aspect, the setting, by the terminal, the highest priority of the frequency point providing the side link configuration of the public radio access technology includes: if the resource pool currently used by the terminal is effective, the terminal sets the side link configuration providing the public wireless access technology in the cell and/or sets the frequency point priority of the frequency point of the effective cell in the cell configured by the resource pool currently used by the terminal to be the highest.

In a possible implementation manner of the fourth aspect, the terminal determines a relative priority between the highest frequency point priorities according to a first priority or a second priority, where the first priority is a frequency point priority that does not consider the service transmission of the vehicle-networking side link, and the second priority is a frequency point priority that considers the service transmission of the vehicle-networking side link.

In a fifth aspect, an embodiment of the present application provides a resource pool sensing method, including: the terminal determines candidate cells meeting cell reselection conditions; and in the process of executing cell reselection by the terminal, the terminal executes sensing operation on the resource pool of the candidate cell to obtain a corresponding sensing result.

In a possible implementation manner of the fifth aspect, the performing, by the terminal, cell reselection includes: and the terminal executes verification operation on the cell with the maximum R value in the candidate cells.

In a possible implementation manner of the fifth aspect, the sensing, by the terminal, the resource pool of the candidate cell includes: the terminal acquires resource pool configurations corresponding to N target cells; the target cell is selected from a target cell set according to a descending order of R values, the target cell set is a cell set corresponding to an adjacent cell of which the R value is greater than the R value of a service cell, or a cell set corresponding to an adjacent cell meeting a pilot frequency cell reselection criterion on a frequency point, the service cell is a cell where the terminal resides, and the R values are obtained through calculation according to the R criterion; and the terminal executes the perception operation on the resource pools corresponding to the N target cells.

In a possible implementation manner of the fifth aspect, the method further includes: and if the verification result corresponding to the verification operation is forbidden access, the terminal removes the cell with the maximum R value in the candidate cells from the candidate cells.

In one possible implementation manner of the fifth aspect, the method further includes: and if the verification result corresponding to the verification operation is non-access prohibition, the terminal reselects the cell with the maximum R value in the candidate cells.

In a possible implementation manner of the fifth aspect, the resource pool is a resource pool corresponding to a side link in the internet of vehicles.

In a sixth aspect, an embodiment of the present application provides a terminal, including: a processing module to: the method comprises the steps of obtaining first information in system information broadcasted by network equipment, wherein the first information is used for indicating whether a resource pool is effective in a neighboring cell of a serving cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: and if the resource pool currently used by the terminal is valid in the region, acquiring first information in the system information broadcasted by the network equipment. The resource pool currently used by the terminal is valid, which indicates that the resource pool can be used in a non-service cell, and the terminal acquires the first information under the condition, so that the terminal can be prevented from blindly acquiring the first information.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: and judging whether the resource pool currently used by the terminal is effective in the adjacent cells of the serving cell or not in the serving cell.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: and acquiring the first information in a system information block n and/or m broadcasted by the service cell, wherein n and m are integers greater than or equal to 1, and m and n are not equal. The terminal may carry the first information in one or any two system information blocks of the serving cell.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: acquiring a system information block 1 broadcasted by an adjacent cell of the serving cell, and the first information in a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: and acquiring the first information in a system information block n broadcasted by the adjacent cell of the service cell, wherein n is an integer greater than or equal to 1.

In a possible implementation manner of the sixth aspect, the acquiring, by the terminal, first information of the network device in the system information includes: the terminal acquires a system information block 1 broadcasted by an adjacent cell of the serving cell and/or the first information in a system information block n, wherein n is an integer greater than or equal to 2.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: and acquiring the first information from system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein n and m are integers which are more than or equal to 2, and m and n are not equal.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: if the second information is the same as the first information, determining that the resource pool configuration currently used by the terminal is valid in a neighboring cell of the serving cell, where the second information is used to indicate that a resource pool area currently used by the terminal is valid, and both the first information and the second information include at least one of the following: area identification, resource pool version identification, public land mobile network identification.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: if the first information includes a first resource pool identifier corresponding to the resource pool currently used by the terminal, and the validity information corresponding to the first resource pool identifier is valid, it is determined that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell, and the first information includes: at least one resource pool identification and validity information corresponding to each resource pool identification.

In a possible implementation manner of the sixth aspect, the first information may further include: at least one resource pool identification and a validity information resource pool version identification corresponding to each resource pool identification, and a resource pool version identification and/or a public land mobile network identification; the processing module is further configured to: and if the resource pool version identifier and/or the public land mobile network identifier in the first information are the same as the second information, the resource pool currently used by the terminal is configured to be valid in the adjacent cell of the serving cell.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: if the cell identifier list corresponding to the resource pool currently used by the terminal includes the cell identifier of the neighboring cell of the serving cell, and/or the first information is the same as the second information, it is determined that the resource pool currently used by the terminal is configured to be valid in the neighboring cell of the serving cell, where the second information is used to indicate that the resource pool area currently used by the terminal is valid, and the first information and the second information both include at least one of the following: a resource pool version identification and a public land mobile network identification.

In a possible implementation manner of the sixth aspect, the second information corresponds to the serving cell, or the second information corresponds to a resource pool available in a region of the serving cell.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the resource pool currently used by the terminal is valid, selecting a first cell which has the maximum R value in the candidate cells and is valid in the candidate cell configuration of the resource pool currently used by the terminal, wherein the R value is determined according to an R criterion, and the candidate cell is a cell which meets a cell reselection condition in adjacent cells of the serving cell.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and executing a checking operation on the first cell to obtain a first checking result.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the first check result is non-access prohibition, determining that the first cell is a reselected cell.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the first verification result is that access is forbidden, removing the first cell from the candidate cell, or removing the first cell from the candidate cell within a preset time length.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the check results corresponding to N valid cells in the candidate cells, which are configured by the resource pool currently used by the terminal in the candidate cells, are all access-forbidden, determining that the cell with the largest R value and which is not access-forbidden in the candidate cells is a reselected cell, wherein the N cells are part or all of the candidate cells.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: if the terminal currently uses the first resource pool with the effective area, selecting a second cell with the maximum R value in the candidate cells, wherein the R value is determined according to an R criterion, and the candidate cells are cells meeting cell reselection conditions in adjacent cells of the serving cell; and the terminal executes the check operation on the second cell to obtain a second check result.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the second check result is non-forbidden access and the resource pool configuration currently used by the terminal is effective in the second cell, determining that the second cell is a reselected cell.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the second check result is that the access is forbidden, removing the second cell from the candidate cell, or removing the second cell from the candidate cell within a preset time length.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and if the resource pool configuration currently used by the terminal is invalid in N cells of which the verification results are non-access-forbidden cells in the candidate cells, determining the cell with the maximum R value and the non-access-forbidden cells in the candidate cells as a reselected cell, wherein the N cells are part or all of the candidate cells.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: setting the frequency point priority of the side link configuration providing the public wireless access technology to be highest; wherein the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

In a possible implementation manner of the sixth aspect, the processing module is specifically configured to: if the resource pool currently used by the terminal is valid, configuring a side link providing the public radio access technology in the candidate cell, and/or setting the frequency point priority of a frequency point of a cell where the resource pool currently used by the terminal is valid in an adjacent cell of the serving cell to be highest.

In a possible implementation manner of the sixth aspect, the processing module is further configured to: and determining the relative priority among the priorities of the highest frequency points according to the first priority or the second priority.

In a possible implementation manner of the sixth aspect, the resource pool currently used by the terminal includes a resource pool corresponding to a side link of the internet of vehicles.

In a seventh aspect, an embodiment of the present application further provides a network device, including: a processing module to: first information is broadcast in the system information, the first information being used for indicating whether the resource pool is valid in a neighboring cell of the serving cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides.

In a possible implementation manner of the seventh aspect, the processing module is specifically configured to: broadcasting the first information in a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In a possible implementation manner of the seventh aspect, the processing module is specifically configured to: broadcasting the first information in a system information block 1 of a neighboring cell of the serving cell, and a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In a possible implementation manner of the seventh aspect, the processing module is specifically configured to: the network equipment broadcasts the first information in a system information block n of a neighboring cell of the serving cell, where n is an integer greater than or equal to 1.

In a possible implementation manner of the seventh aspect, the processing module is specifically configured to: broadcasting the first information in a system information block 1, and/or a system information block n, of a neighboring cell of the serving cell, where n is an integer greater than or equal to 2.

In a possible implementation manner of the seventh aspect, the processing module is specifically configured to: broadcasting the first information in system information blocks m and n broadcasted by adjacent cells of the serving cell, wherein n and m are integers which are more than or equal to 2, and m and n are unequal.

In a possible implementation manner of the seventh aspect, the first information includes at least one of: an area identifier, a resource pool version identifier and a public land mobile network identifier; or, the first information includes at least one of: cell identity, resource pool version identity and public land mobile network identity.

In a possible implementation manner of the seventh aspect, the resource pool currently used by the terminal includes a resource pool corresponding to a side link of the internet of vehicles.

In an eighth aspect, an embodiment of the present application further provides a terminal, including: a processing module to: acquiring a first priority and a second priority, wherein the first priority is the frequency point priority of the service transmission of the vehicle networking side link without consideration, and the second priority is the frequency point priority of the service transmission of the vehicle networking side link with consideration; and determining the first priority or the second priority as the frequency point priority according to the transmission configuration of the Internet of vehicles service.

In a possible implementation manner of the eighth aspect, the processing module is specifically configured to: and if the terminal is configured to transmit the Internet of vehicles service, determining the second priority as the frequency point priority.

In a possible implementation manner of the eighth aspect, the processing module is specifically configured to: and if the terminal is configured not to transmit the Internet of vehicles service, determining the first priority as the frequency point priority.

In a ninth aspect, an embodiment of the present application further provides a terminal, including: a processing module to: determining a side link configuration of a public radio access technology, wherein the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, side link configuration of wireless access technology required by terminal service; and setting the frequency point priority of the side link configuration providing the public wireless access technology to be highest.

In a possible implementation manner of the ninth aspect, the processing module is specifically configured to: and if the resource pool currently used by the terminal is effective, setting the side link configuration providing the public wireless access technology in the cell and/or the frequency point priority of the frequency point of the effective cell in the cell configured by the resource pool currently used by the terminal to be highest.

In a possible implementation manner of the ninth aspect, the processing module is further configured to: and determining the relative priority between the highest frequency point priorities according to a first priority or a second priority, wherein the first priority is the frequency point priority without considering the service transmission of the vehicle-networking side link, and the second priority is the frequency point priority with considering the service transmission of the vehicle-networking side link.

In a tenth aspect, an embodiment of the present application further provides a terminal, including: a processing module to: determining candidate cells meeting cell reselection conditions; and in the process of executing cell reselection by the terminal, sensing operation is executed on the resource pool of the candidate cell to obtain a corresponding sensing result.

In a possible implementation manner of the tenth aspect, the processing module is specifically configured to: and performing checking operation on the cell with the maximum R value in the candidate cells.

In a possible implementation manner of the tenth aspect, the processing module is specifically configured to: acquiring resource pool configurations corresponding to N target cells; the target cell is selected from a target cell set according to a descending order of R values, the target cell set is a cell set corresponding to an adjacent cell of which the R value is greater than the R value of a service cell, or a cell set corresponding to an adjacent cell meeting a pilot frequency cell reselection criterion on a frequency point, the service cell is a cell where the terminal resides, and the R values are obtained through calculation according to the R criterion; and executing the perception operation on the resource pools corresponding to the N target cells.

In a possible implementation manner of the tenth aspect, the processing module is further configured to: and if the verification result corresponding to the verification operation is forbidden access, removing the cell with the maximum R value in the candidate cells from the candidate cells.

In a possible implementation manner of the tenth aspect, the processing module is further configured to: and if the verification result corresponding to the verification operation is non-access prohibition, reselecting the cell with the maximum R value in the candidate cells.

In a possible implementation manner of the tenth aspect, the resource pool is a resource pool corresponding to a side link of the internet of vehicles.

In an eleventh aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a terminal device or a chip, and the communication apparatus includes: a processor, which may also include a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory to cause the communication device to perform the method according to the first aspect.

In a twelfth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a network device or a chip, and the communication apparatus includes: the processor may further include: a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory, such that the communication device performs the method of the second aspect.

In a thirteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a terminal device or a chip, and the communication apparatus includes: the processor may further include: a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory, so that the communication device performs the method according to the third aspect.

In a fourteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a terminal device or a chip, and the communication apparatus includes: the processor may further include: a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory, so that the communication device performs the method according to the aforementioned fourth aspect.

In a fifteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may include an entity such as a terminal device or a chip, and the communication apparatus includes: the processor may further include: a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory, so that the communication device performs the method according to the fifth aspect.

In a sixteenth aspect, an embodiment of the present application provides a computer-readable storage medium, having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the first aspect.

In a seventeenth aspect, an embodiment of the present application provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the second aspect described above.

In an eighteenth aspect, this application provides, in an embodiment, a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the third aspect described above.

In a nineteenth aspect, the present application provides in an embodiment a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the fourth aspect described above.

In a twentieth aspect, the present application provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the fifth aspect described above.

In a twenty-first aspect, the present application provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the first aspect described above.

In a twenty-second aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect described above.

In a twenty-third aspect, the present application provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of the third aspect described above.

In a twenty-fourth aspect, the present application provides, in an embodiment, a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the fourth aspect described above.

In a twenty-fifth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above-described fifth aspect.

In a twenty-sixth aspect, the present application provides a chip system, which includes a processor for enabling a terminal to implement the functions referred to in the above first aspect, for example, to transmit or process data and/or information referred to in the above method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twenty-seventh aspect, the present application provides a chip system, which includes a processor for enabling a network device to implement the functions recited in the above-mentioned second aspect, for example, to transmit or process data and/or information recited in the above-mentioned methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twenty-eighth aspect, the present application provides a chip system, which comprises a processor for enabling a terminal to implement the functions referred to in the above third aspect, for example, to transmit or process data and/or information referred to in the above method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twenty-ninth aspect, the present application provides a chip system, which includes a processor for enabling a terminal to implement the functions referred to in the above-mentioned fourth aspect, for example, to transmit or process data and/or information referred to in the above-mentioned methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a thirtieth aspect, the present application provides a chip system comprising a processor for enabling a terminal to implement the functions referred to in the above fifth aspect, for example, to transmit or process data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be formed by a chip, or may include a chip and other discrete devices.

Drawings

FIG. 1(a) is a diagram of an E-UTRAN communication system architecture provided in an embodiment of the present application;

fig. 1(b) is a diagram of a NG-RAN communication system architecture provided in an embodiment of the present application;

fig. 2 is a schematic diagram of an embodiment of an information transmission method provided in an embodiment of the present application;

fig. 3 is a schematic diagram of an embodiment of a method for determining a reselected cell provided in an embodiment of the present application;

fig. 4 is a schematic diagram of an embodiment of another method for determining a reselected cell provided in an embodiment of the present application;

fig. 5 is a schematic diagram of an embodiment of a method for determining a frequency point priority provided in an embodiment of the present application;

fig. 6 is a schematic diagram of an embodiment of a method for setting priority of frequency points provided in an embodiment of the present application;

FIG. 7 is a diagram of an embodiment of a resource pool sensing method provided in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a terminal in the embodiment of the present application;

fig. 9 is a schematic structural diagram of a network device in an embodiment of the present application;

fig. 10 is another schematic structural diagram of a terminal in the embodiment of the present application;

fig. 11 is another schematic structural diagram of a network device in the embodiment of the present application.

Detailed Description

The embodiment of the application provides an information transmission method, a terminal and a network device, which are used for reducing time delay caused by cell reselection, reducing the probability of service interruption after service reselection and improving user experience in the cell reselection process.

Embodiments of the present application are described below with reference to the accompanying drawings.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings 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 terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. 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 elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In order to facilitate the description of the technical solutions in the present application experimental examples, the following table 1 lists english abbreviations, english full names, and chinese characters referred to in the present application examples.

TABLE 1

The technical scheme of the embodiment of the application can be applied to various data processing communication systems. For example, an E-UTRAN communication system, an NG-RAN communication system, an NR V2X communication system, and a future mobile communication system are all applicable to the technical solutions provided in the embodiments of the present application. The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

The following is a description of concepts involved in the embodiments of the present application.

1. Cell reselection

Cell reselection may be divided into intra-frequency (intra-frequency) cell reselection, inter-frequency (inter-frequency) cell reselection, and inter-RAT (inter-RAT) cell reselection. And the intra-frequency cell reselection is that the terminal selects a cell which meets the same frequency reselection criterion on the current service frequency point for cell reselection. And the inter-frequency cell reselection is that the terminal selects a cell corresponding to the R criterion of the RAT on other frequency points configured by the RAT to reselect. And the inter-RAT cell reselection is to reselect a cell corresponding to the R criterion meeting the inter-RAT on the frequency point configured by other RATs by the terminal.

2. V2X communication

The V2X communication is a generic term of communication modes such as vehicle acquiring traffic information or receiving information service. The V2X communication includes: V2V, V2I, V2P, V2N, and the like. For V2I communication, roadside infrastructure such as RSU can provide various service information for vehicles and access of data network, and functions such as non-stop charging and in-vehicle entertainment greatly improve traffic intelligence.

3. NR V2X communication system

NR systems are currently mainstream wireless communication technologies, and are starting to establish relevant standards according to V2X service characteristics and new service transmission requirements, and the goal is to support V2X communication with lower latency and higher reliability, and its application scenario includes automatic driving (automated driving). Specifically, in the NR V2X system, there are two types of air interfaces, Uu and PC 5. A Uu opening: for communication between a terminal and a base station; PC5 port: for SL communication from terminal to terminal.

For port PC5, two resource allocation modes are supported: mode1 and Mode 2. The Mode1 Mode is used for dedicated resource allocation, and the network device may perform resource allocation through the dedicated RNTI of the terminal device, which is mainly used for supporting a connected terminal. The Mode2 Mode is used for allocating contention resources, which are configured by system message broadcast or dedicated signaling, and are shared by more than one terminal for IDLE, inactive and connected terminals.

The resource in the application is not limited to mode1, and is suitable for a resource allocation mode of base station scheduling in subsequent evolution; and the method is not limited to adopting mode2, and is suitable for the UE autonomous resource allocation mode in the subsequent evolution.

It should be understood that NR mode1 in the present invention can be extended to resource allocation manner of base station scheduling in future evolved V2X SL communication. Alternatively, NR mode1 in the present application may be replaced by a resource allocation manner scheduled by a base station in future evolved V2X SL communication. The NR mode2 in the present invention can be extended to the UE autonomous resource allocation in future evolved V2X SL communication, or the NR mode2 in the application can be replaced with the UE autonomous resource allocation in future evolved V2X SL communication.

FIG. 1(a) is a diagram of an E-UTRAN communication system architecture provided in the embodiments of the present application.

In fig. 1(a) the E-UTRAN consists of enbs, providing UE-oriented E-UTRA user plane and control plane protocol terminations. The enbs are interconnected via an X2 interface. The eNB is also connected to the MME through the S1-MME interface and to the S-GW through the S1-U interface.

Fig. 1(b) is a diagram of a NG-RAN communication system architecture provided in an embodiment of the present application.

In fig. 1(b) the gNB provides UE-oriented NR user plane and control plane protocol terminals and the ng-eNB provides UE-oriented E-UTRA user plane and control plane protocol terminals. The gNB and the NG-eNB are interconnected through an Xn interface, and the gNB and the NG-eNB are connected to the 5GC through an NG interface.

The network device in the embodiment of the present application may be a road side unit RSU, and may further include but is not limited to: base stations (e.g., base station BS, base station NodeB, evolved base station eNB, base station gNB and base station ng-eNB in a fifth generation 5G communication system, base station in a future communication system, access node in a WiFi system, wireless relay node, wireless backhaul node), etc. The base station may be: macro base stations, micro base stations, pico base stations, small stations, relay stations, etc. A network, or future evolution network, in which multiple base stations may support one or more of the technologies mentioned above. The network device may also be a server, a wearable device, or a vehicle mounted device, etc.

A terminal, also referred to as a user equipment UE, a Mobile Station (MS), a Mobile Terminal (MT), a terminal, etc., is a device for providing voice and/or data connectivity to a user, or a chip disposed in the device, such as a handheld device, a vehicle-mounted device, etc., which has wireless connectivity. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like. The terminal device provided in the embodiment of the present application may include, but is not limited to: a vehicle-mounted device or terminal accessing an E-UTRAN communication system, an NG-RAN communication system, or an NR V2X communication system.

In order to facilitate understanding of the information transmission method in the embodiments of the present application, the following detailed description is made with reference to specific embodiments.

Example one

Fig. 2 is a schematic diagram of an embodiment of an information transmission method provided in an embodiment of the present application.

As shown in fig. 2, the information transmission method in the embodiment of the present application includes:

201. the network device broadcasts the first information in the system information.

The serving cell is a cell in which the terminal resides. The first information is used for indicating whether a resource pool is valid in a neighboring cell of the serving cell.

The first information may include, but is not limited to: at least one of an area Identity, ID, a resource pool version Identity and a public land mobile network Identity, PLMN-Identity. The region ID indicates the valid region corresponding to the resource pool for which the region is valid, e.g., the region ID indicates that the resource pool is valid in cells 1-10. The resource pool version identification indicates the version corresponding to the resource pool with the effective area.

In the scenario of service transmission of the car networking sidelink V2X SL, the resource pool with effective area may be the resource pool with effective area V2X SL, or the resource pool with effective area may be the resource pool corresponding to V2X SL configured as the resource pool with effective area. The resource pool revision identification may be the value Tag of the area valid V2X SL resource pool.

202. The terminal acquires first information in system information broadcasted by the network equipment.

If the resource pool currently used by the terminal is an effective resource pool in the area, or the resource pool currently used by the terminal is an effective resource pool in the area, the terminal acquires first information in system information broadcasted by the network equipment.

Of course, if the resource pool currently used by the terminal is a non-area effective resource pool, or the terminal currently uses the non-area effective resource pool, the terminal does not acquire the first information.

The terminal may determine in the serving cell whether the resource pool it is currently using is valid in a neighboring cell of the serving cell. Specifically, the terminal may obtain the first information from system information of the serving cell and/or system information SI of neighboring cells of the serving cell, so as to determine whether a currently used resource pool is valid in the neighboring cells of the serving cell. Specifically, the network device broadcasts the first information in a different manner, and the terminal acquires the first information in a different manner. The terminal may acquire the first information in, but is not limited to, the following manner.

1. The network equipment broadcasts first information in one or more system information blocks SIB of a serving cell

The terminal acquires SIB n of a service cell and/or first information in SIB m, wherein n and m are integers greater than or equal to 1, and m and n are unequal.

Illustratively, in a service transmission scenario of the car networking sidelink V2X SL, the terminal reads at least one of the area ID, value Tag and PLMN-Identity of the valid V2X SL resource pool of the intra-frequency neighboring cell and the inter-frequency neighboring cell carried in SIB3 and/or SIB4 of the serving cell.

2. The network device broadcasts first information in SIBs of neighboring cells of the serving cell and SIBs of the serving cell

The terminal acquires SIB1 of a neighboring cell of a serving cell, and first information in SIB n and/or SIB m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

Illustratively, in the scenario of car networking sidelink V2X SL traffic transmission. The area ID is broadcast in SIB1 of the neighbor cell of the serving cell, and only at least one of value Tag and PLMN-Identity needs to be broadcast in SIB3 and/or SIB4 of the serving cell. The terminal acquires the area ID of the area effective V2X SL resource pool from the SIB1 of the neighboring cell of the serving cell, and acquires at least one of the value Tag and the PLMN-Identity of the area effective V2X SL resource pool from the SIB3 and/or the SIB4 of the serving cell.

3. The network device broadcasts the first information in one SIB for neighboring cells of the serving cell.

The terminal acquires the first information broadcasted in a system information block n of a neighboring cell of the serving cell, wherein n is an integer greater than or equal to 1.

Illustratively, in the scenario of car networking sidelink V2X SL traffic transmission. In one aspect, the terminal reads at least one of an area ID, a value Tag, and a PLMN-Identity of an area valid V2X SL resource pool broadcasted in an in-vehicle networking specific system information block V2X specific SIB of a serving cell.

On the other hand, the end reads at least one of the area ID, value Tag, and PLMN-Identity of the area valid V2X SL resource pool broadcasted in the SIB1 of the neighboring cell of the serving cell.

4. The network device broadcasts the first information in the SIB1 and other SIBs of the neighboring cells of the serving cell.

The terminal acquires a system information block 1 of a neighboring cell of a serving cell, and/or first information broadcast in a system information block n, where n is an integer greater than or equal to 2.

Illustratively, in the car networking sidelink V2X SL traffic scenario. The terminal reads the area ID of the area valid V2X SL resource pool in the system information block 1 of the neighboring cell of the serving cell, and reads at least one of the value Tag and PLMN-Identity of the area valid V2X SL resource pool in the system information block 3 or 4.

Optionally, 203, if the resource pool currently used by the terminal is valid in the area, the terminal determines, according to the obtained first information, that the resource pool currently used by the terminal is configured to be valid in the neighboring cell of the serving cell.

The terminal may determine that the resource pool configuration currently used by the terminal is valid in a neighboring cell of the serving cell in the following manner. The second information in the following manner is used for information indicating that a resource pool area currently used by the terminal is valid.

The first mode is as follows:

if the second information is the same as the first information, the terminal determines that the resource pool configuration currently used by the terminal is effective in the adjacent cell of the serving cell, and the first information comprises: an indication of one of a region ID, a resource pool version identification, and a public land mobile network identification.

The second information may correspond to the serving cell, or may correspond to an area available resource pool in the serving cell. Similarly, the first information may correspond to a neighboring cell of the serving cell, or may correspond to an area available resource pool in the neighboring cell of the serving cell.

The first mode may be applied to a scenario in which the first information acquired by the terminal includes the area ID.

On the one hand, under the condition that the second information corresponds to the effective resource pool of the area in the serving cell, if the area ID corresponding to the resource pool currently used by the terminal is the same as the area ID indicated by the first information, the terminal determines that the resource pool currently used by the terminal is configured to be effective in the adjacent cell of the serving cell. The area ID indicated by the first information may correspond to a neighboring cell of the serving cell, or may correspond to an area available resource pool in the neighboring cell of the serving cell.

On the other hand, in the case where the second information corresponds to the serving cell, if the area ID corresponding to the serving cell is the same as the area ID indicated by the first information, the terminal determines that the resource pool currently used by the terminal is effectively allocated in the neighboring cell of the serving cell. Similarly, the area ID indicated by the first information may correspond to a neighboring cell of the serving cell, or may correspond to an area available resource pool in the neighboring cell of the serving cell.

In two aspects corresponding to the first manner, if the first information further includes a resource pool version identifier and/or a public land mobile network identifier, the terminal compares the area ID and the resource pool version identifier and/or the public land mobile network identifier, and when the area ID, the resource pool version identifier and/or the public land mobile network identifier are the same, the terminal determines that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell.

The second mode is as follows:

and if the cell identification list corresponding to the resource pool currently used by the terminal comprises the cell identification of the adjacent cell of the service cell, and/or the first information is the same as the second information, the terminal determines that the resource pool currently used by the terminal is effectively configured in the adjacent cell of the service cell.

The second method may be applied to a scenario in which the first information acquired by the terminal does not include the area ID.

Specifically, in the case where the second information corresponds to the serving cell:

1. and if the cell identification list corresponding to the resource pool currently used by the terminal comprises the cell identification of the adjacent cell of the service cell, the terminal determines that the resource pool currently used by the terminal is configured in the adjacent cell of the service cell effectively.

2. If the cell identifier list corresponding to the resource pool currently used by the terminal comprises the cell identifiers of the adjacent cells of the serving cell, and the resource pool version identifier in the first information is the same as the resource pool version identifier corresponding to the resource pool currently used by the terminal, the terminal determines that the resource pool currently used by the terminal is configured in the adjacent cells of the serving cell to be effective.

3. If the cell identifier list corresponding to the resource pool currently used by the terminal comprises the cell identifiers of the adjacent cells of the serving cell, the public land mobile network identifier in the first information is the same as the public land mobile network identifier corresponding to the resource pool currently used by the terminal, and the resource pool version identifier in the first information is the same as the resource pool version identifier corresponding to the resource pool currently used by the terminal, the terminal determines that the resource pool currently used by the terminal is configured to be effective in the adjacent cells of the serving cell.

Similarly, in the case that the second information corresponds to a resource pool with an effective area in the serving cell, it may also be determined in a similar manner that the resource pool configuration currently used by the terminal is effective in a neighboring cell of the serving cell.

In the second manner, under the two situations, the resource pool version id and the plmn id indicated by the first information may both correspond to neighboring cells of the serving cell, or may both correspond to an effective resource pool in a region of the neighboring cells of the serving cell.

In the first embodiment, when the resource pool currently used by the terminal is an area-effective resource pool, by obtaining information of the area-effective resource pool in the neighboring cells of the serving cell and determining the cell in which the resource pool currently used by the terminal is configured to be effective in the cell, the terminal can be reselected to the cell in which the resource pool currently used is configured to be effective as much as possible, so that the terminal can sense the cell under the same resource pool configuration after reselection, and the time delay of the terminal is smaller than the time delay of sensing under the resource pool configuration switching, thereby reducing the time delay caused by sensing the resource pool after reselection, and reducing the probability of service transmission interruption in the cell reselection process.

The embodiment of the application provides a method for determining a reselected cell, which is used for improving the existing cell reselection process, so that the configuration of a resource pool used in a serving cell before can be reused after a terminal reselects to the reselected cell, thereby avoiding the time delay caused by perceiving the resource pool again after reselection and reducing the probability of a service terminal.

The method for determining a cell reselection in the embodiment of the present application is described in detail below with reference to the second embodiment and the third embodiment, respectively.

Example two

Fig. 3 is a schematic diagram of an embodiment of a method for determining a reselected cell provided in an embodiment of the present application.

301. If the resource pool currently used by the terminal is effective in the area and the resource pool currently used by the terminal is effective in the candidate cells, the terminal selects the first cell which has the maximum R value in the candidate cells and is effective in the candidate cells in the configuration of the resource pool currently used by the terminal.

The candidate cell is a cell satisfying a cell reselection condition among neighboring cells of the serving cell. Specifically, the candidate cells may include: the method comprises the steps of obtaining a cell reselection criterion of a serving cell from a neighboring cell of the serving cell, obtaining a cell reselection criterion of a same-frequency cell from neighboring cells of the serving cell, obtaining a cell reselection criterion of a same-priority pilot frequency cell from neighboring cells of the serving cell, obtaining a cell reselection criterion of a same-frequency cell from neighboring cells of the serving cell, obtaining a cell reselection criterion of a different-priority pilot frequency cell from neighboring cells of the serving cell, and obtaining a cell reselection criterion of a different-priority pilot frequency cell from neighboring cells of the serving cell.

For example, under the condition that the terminal stays in the current serving cell for a time period not less than a predetermined time period (e.g., 1 second), the terminal determines one or more cells having an R value higher than that of the serving cell in a continuous time as candidate cells through an R criterion.

The R value is determined according to an R criterion, and for the R criterion, reference may be made to related descriptions in the conventional cell reselection process, which is not described herein again.

Optionally, before step 301, the terminal may further perform a similar manner to that in step 203 to determine that the resource pool currently used by the terminal is valid in the candidate cell, which is not described herein again.

Optionally, the terminal executes the step 301 above under the condition of determining the priority of the frequency point. The determination method of the priority of the frequency point may be combined with the technical solutions described in the following fourth embodiment and/or fifth embodiment.

302. The terminal executes a verification operation on the first cell to obtain a first verification result.

The verify operation may be a bar verify, and the corresponding first verify structure includes: forbidden access or non-forbidden access.

303. And if the first check result is non-access prohibition, the terminal determines that the first cell is a reselected cell.

The reselected cell refers to a cell to be reselected by the terminal.

304. And if the first verification result is that the access is forbidden, the terminal removes the first cell from the candidate cell.

Specifically, the terminal may remove the first cell from the candidate cells, so that the terminal permanently disregards the first cell as the candidate cell. The terminal may also remove the first cell from the candidate cell within a preset time period (e.g., 300 seconds), so that the terminal does not consider the first cell as the candidate cell within the preset time period; and after the preset time length is exceeded, the terminal takes the first cell as a candidate cell.

Illustratively, if the first check result is access prohibition, the terminal selects a cell which has the maximum R value in the updated candidate cells and is valid in the candidate cells in which the resource pool currently used by the terminal is configured, and performs bar check, and if the bar check result is non-access prohibition, the terminal determines a cell which has the maximum R value in the current candidate cells and is valid in the candidate cells in which the resource pool currently used by the terminal is configured as a reselected cell; and if the bar check result is that access is forbidden, the terminal deletes the cell which has the maximum R value in the current candidate cell and is effective in the candidate cell by the current resource pool configuration of the terminal from the candidate cell, and then selects the cell which has the maximum R value in the updated candidate cell and is effective in the candidate cell by the current resource pool configuration of the terminal to continuously execute the bar check.

305. If the verification results corresponding to N valid cells configured in the candidate cells by the resource pool currently used by the terminal in the candidate cells are all prohibited to access, the terminal determines that the cell with the maximum R value in the candidate cells and which is not prohibited to access is a reselected cell, and the N cells are part or all of the candidate cells.

The cell with the largest R value and the bar check as non-access-prohibited in the candidate cell is irrelevant to whether the resource pool configuration currently used by the terminal is valid in the cell. Specifically, the cell with the largest R value and the non-barred access checked as bar in the candidate cell may be a cell in which the resource pool currently used by the terminal is configured to be valid in the cell, or a cell in which the resource pool currently used by the terminal is configured to be invalid in the cell.

In the second embodiment, the terminal determines the cell in which the resource pool currently used by the terminal in the candidate cell is configured in the cell, and then performs the bar check according to the R value, so that the terminal selects the cell in which the resource pool currently used by the terminal in the candidate cell is configured in the cell as an effective cell as a reselected cell as much as possible, so that the terminal can sense under the same resource pool configuration after reselection, and the time delay of the cell is smaller than the time delay of sensing under the resource pool switching configuration, thereby reducing the extra time delay brought by sensing a new resource pool after reselection, and reducing the probability of service transmission interruption in the cell reselection process.

EXAMPLE III

Fig. 4 is a schematic diagram of an embodiment of another method for determining a reselected cell provided in this embodiment.

401. And if the terminal currently uses the first resource pool with the effective area, the terminal selects a second cell with the maximum R value in the candidate cells.

For example, under the condition that the terminal stays in the current serving cell for not less than a predetermined time (e.g., 1 second), the terminal determines, through the R criterion, one or more cells having R values higher than the R value of the serving cell in continuous time as candidate cells.

Optionally, the terminal executes the step 401 above under the condition of determining the priority of the frequency point. The determination method of the frequency point priority may be combined with the technical solutions described in the following fourth and/or fifth embodiments.

402. And the terminal executes the check operation on the second cell to obtain a second check result.

The check operation may be a bar check, and the corresponding second check structure includes: forbidden access or non-forbidden access.

403. And if the second check result is non-forbidden access and the resource pool configuration currently used by the terminal is effective in the second cell, the terminal determines that the second cell is a reselected cell.

The reselected cell refers to a cell to be reselected by the terminal. Optionally, under the condition that the second check result is non-prohibited access, the terminal may perform operations similar to those in 203 described above to determine that the resource pool configuration currently used by the terminal is valid in the second cell, which is not described herein again.

404. And if the second check result is that the access is forbidden, the terminal removes the second cell from the candidate cell.

Specifically, the terminal may remove the second cell from the candidate cells, so that the terminal permanently disregards the second cell as the candidate cell. The terminal may also remove the second cell from the candidate cell within a preset time (e.g., 300 seconds), so that the terminal does not consider the second cell as the candidate cell within the preset time; and after the preset time length is exceeded, the terminal takes the second cell as a candidate cell.

Illustratively, if the second check result is access prohibition, the terminal selects a cell with the second largest R value in the candidate cells, performs bar check, if the bar check result is non-access prohibition, and the terminal determines that the resource pool currently used by the terminal is configured to be valid in the cell with the second largest R value in the candidate cells, and determines the cell with the second largest R value in the candidate cells as a reselected cell; if the bar check result is that access is forbidden, the terminal deletes the cell with the second largest R value in the candidate cells from the candidate cells, then selects the cell with the second largest R value in the candidate cells to continue to execute the bar check, and judges whether the resource pool configuration currently used by the terminal is effective in the cell when the check result is that access is not forbidden.

405. If the resource pool configuration currently used by the terminal is invalid in N cells of which the verification results are non-access-forbidden cells in the candidate cells, the terminal determines the cell with the maximum R value and the non-access-forbidden cells in the candidate cells as a reselected cell, wherein the N cells are part or all of the candidate cells.

The cell with the largest R value and the non-access prohibition checked as bar in the candidate cell is irrelevant to whether the resource pool configuration currently used by the terminal is valid in the cell. Specifically, the cell with the largest R value and the non-barred access checked as bar in the candidate cell may be a cell in which the resource pool currently used by the terminal is configured to be valid in the cell, or a cell in which the resource pool currently used by the terminal is configured to be invalid in the cell.

It should be noted that, in an embodiment, in the second embodiment and the third embodiment, it is determined that the resource pool configuration currently used by the terminal is valid in the candidate cell, and the bar check on the candidate cell may be performed simultaneously.

It should be further noted that, after determining the priority of the frequency point of the serving cell and the priority of the frequency point of the candidate cell in the second embodiment and the third embodiment, the determination of the priority of the frequency point may be combined with the technical solutions described in the fourth embodiment and/or the fifth embodiment below.

In the third embodiment, the terminal selects a non-access-prohibited target cell after performing bar check according to the R value, and determines that a resource pool currently used by the terminal in the target cell is configured in an effective cell in the cell for reselection, so that the terminal selects the cell in which the resource pool currently used by the terminal is configured in the effective cell as a reselected cell as much as possible, and the terminal can sense the cell under the same resource pool configuration after reselection, and the time delay of the cell is smaller than the time delay of sensing under the resource pool configuration switching, thereby reducing extra time delay brought by sensing a new resource pool after reselection, and reducing the probability of service transmission interruption in the cell reselection process.

The embodiment of the application provides a method for determining the priority of a frequency point, which is suitable for an NR V2X communication system and is used for determining the priority of the frequency point based on Internet of vehicles service so as to avoid the condition that the Internet of vehicles service transmission cannot be carried out after cell reselection.

Example four

Fig. 5 is a schematic diagram of an embodiment of a method for determining priority of frequency points provided in the embodiment of the present application.

As shown in fig. 5, an embodiment of a method for determining a priority of a frequency point in an embodiment of the present application includes:

501. the terminal acquires the first priority and the second priority.

The first priority is the frequency point priority of the service transmission without considering the vehicle networking side link (V2X side link). Specifically, the first priority may be a frequency bin priority considering only Uu ports. The first priority may be obtained from another Radio Access Technology (RAT) by system information, dedicated signaling (RRC release message), or upon cell reselection (inter-RAT cell (re) selection) of a different frequency radio access technology, frequency priorities of different frequency (inter-frequency) and different radio access technology (inter-RAT) configurations. The first priority may be a frequency point priority provided by a network in the prior art.

The second priority is the frequency point priority considering the traffic transmission of the vehicle networking side link (V2X side link). Specifically, the second priority may be a frequency bin priority considering both the Uu port and the PC5 port. For a vehicle networking side link (V2X side link), for example, when the network side determines that a load of a V2X mode1 resource provided by a certain cell or frequency point is large, or receives that a channel congestion rate CBR corresponding to a mode2 resource pool configured by the network side is large, the priority of the frequency point (corresponding to the cell) is reduced, so as to avoid overload as much as possible or avoid that V2X communication is difficult to perform after the UE reselects to the cell.

502. And the terminal determines to adopt the first priority or the second priority as the frequency point priority according to the transmission configuration of the Internet of vehicles service.

And if the terminal is configured to perform the service transmission of the Internet of vehicles, the terminal adopts the second priority as the priority of the frequency point. And if the terminal is not configured to transmit the Internet of vehicles service, the terminal adopts the first priority as the frequency point priority.

Specifically, when the terminal has V2X traffic being transmitted or V2X traffic of interest to be transmitted, that is, the terminal is configured to communicate V2X traffic, the terminal uses the second priority; otherwise, the terminal uses the first priority when no V2X traffic is being transmitted or V2X traffic of interest is pending, i.e., the terminal is not configured for V2X traffic communication.

In the fourth embodiment, by adding a set of second priorities considering the Uu port and the side link at the same time, the current traffic load of V2X (V2X resource occupancy) under the cell/frequency point is used as a reference for setting the priority of the frequency point, so that overload of a reselected new cell or difficulty in V2X communication after the terminal reselects to the cell is avoided.

The embodiment of the application also provides a method for setting the priority of the frequency point, which is used for setting the priority of the frequency point according to the side link configuration of the public wireless access technology, so that a middle terminal with the requirement of the V2X SL service can be reselected to a new cell which can provide the SL resource configuration of the RAT type required by the middle terminal as much as possible.

EXAMPLE five

Fig. 6 is a schematic diagram of an embodiment of a method for setting priority of frequency points provided in this embodiment.

As shown in fig. 6, an embodiment of a method for setting priority of frequency points in the embodiment of the present application includes:

601. the terminal determines a sidelink configuration for the common radio access technology.

The side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

The sidelink configurations of any of the above radio access technologies include LTE SL configurations and/or NR SL configurations. Wherein the LTE SL configuration may be an LTE R14SL configuration and/or an LTE R15SL configuration, and the NR SL configuration may be one or more of an NR R16SL configuration and a subsequent evolved RAT SL configuration.

602. The terminal sets the frequency point priority of the side link configuration providing the public wireless access technology to be the highest

And if the resource pool currently used by the terminal is effective, the terminal sets the priority of the frequency point configured by the side link providing the public wireless access technology in the cell to be the highest.

Or, if the resource pool currently used by the terminal is valid, the terminal sets the frequency point priority of the frequency point where the valid cell in the cell is located to be the highest in the side link configuration providing the public wireless access technology in the cell and the resource pool currently used by the terminal.

Optionally, 603, the terminal determines the relative priority between the priorities of the highest frequency points according to the first priority or the second priority.

The first priority is the frequency point priority of the service transmission without considering the vehicle networking side link. The second priority is the frequency point priority considering the service transmission of the vehicle networking side link. Other related descriptions of the first priority and the second priority can refer to the related description in step 501, and are not repeated here.

Optionally, the terminal may further determine the relative priority between the priorities of the highest frequency points according to the average signal strength of the cell or the terminal implementation.

In the fifth embodiment, the frequency point priority of the side link configuration of the radio access technology supported by the terminal capability, the side link configuration of the radio access technology authorized by the terminal, and the side link configuration of the radio access technology identical between any two or three types among the side link configurations of the radio access technology required by the terminal service is set to be the highest, so that the terminal having the requirement of the V2X SL service can be reselected to a new cell which can provide the SL resource configuration of the RAT type required by the terminal and is matched with the terminal capability and the authorization condition as far as possible.

The embodiment of the application also provides a resource pool sensing method, which is used for sensing the resource pool of the candidate cell in advance, obtaining a sensing result in advance and reducing the probability of service interruption caused by the replacement of the resource pool after the terminal reselects to a new cell.

EXAMPLE six

Fig. 7 is a schematic diagram of an embodiment of a resource pool sensing method in an embodiment of the present application.

As shown in fig. 7, an embodiment of the resource pool sensing method includes:

701. the terminal determines candidate cells satisfying the cell reselection condition.

The candidate cell described in step 701 is similar to the candidate cell described in step 301, and the relevant description thereof may refer to the relevant description in step 301, and is not described herein again.

702. And if the terminal performs cell reselection, the terminal performs sensing operation on the resource pool of the candidate cell to obtain a corresponding sensing result.

Performing, by the terminal, a sensing operation on the resource pool of the candidate cell may include: if the terminal executes the check operation on the cell with the maximum R value in the candidate cells, the terminal acquires resource pool configuration corresponding to N target cells; and the terminal executes sensing operation on the resource pools corresponding to the N target cells.

The N target cells are selected from a target cell set according to R value descending order, the target cell set can be a cell set corresponding to an adjacent cell of which the R value is larger than the R value of the service cell and the frequency point of which the service cell is positioned is the same frequency as the frequency point, the target cell set can also be a cell set corresponding to an adjacent cell meeting the different-frequency cell reselection criterion on the frequency point of the current RAT or the non-current RAT, the current RAT is the RAT corresponding to the current service frequency point of the terminal, the R value is calculated according to the R criterion, and the service cell is the cell where the terminal resides. The sensing operation may be denoted as sensing.

Optionally, the checking operation may be a bar check, and the corresponding bar check result includes: forbidden access or non-forbidden access. Alternatively, the resource pool may be a resource pool corresponding to a side link of the car networking, that is, the above-mentioned V2X SL resource pool.

Optionally, if the check result is that access is prohibited, the terminal removes a cell with the largest R value in the candidate cells from the candidate cells; and if the verification result is that the access is not forbidden, the terminal reselects the cell with the maximum R value in the candidate cells.

The cell reselection process may be a method for determining a reselected cell in the first embodiment corresponding to fig. 2, and refer to the related description in the first embodiment.

The cell reselection procedure described above may also be an existing cell reselection procedure. Specifically, when the terminal has the internet of vehicles service being transmitted or the internet of vehicles service of interest to be transmitted, the terminal performs the following operations 1-3 during the cell reselection process:

for the same-frequency or equal-priority NR inter-frequency cell reselection, the terminal may perform the following steps:

step 1: under the condition that the time length of the terminal residing in the current service cell is not less than 1s, the terminal determines a cell set which is higher than the R value of the service cell within a continuous time through an R criterion, wherein the time length of the continuous time can be set by adopting a reselection timer (TreselectorRAT).

Step 2: while performing bar check on the cell with the highest R value in the cell set, N neighboring cells are taken in descending order of R value in advance, a V2X SL resource pool (transmission resource pool or transmission/reception resource pool) broadcasted by system information (for example, SIB21 or SIB26) of the N neighboring cells is read, and sensing operation is performed on the resource pool.

And step 3: if the bar check result is not forbidden access (not barred), reselecting the cell with the highest R value; otherwise, selecting the cell with the highest R value and not barred according to the method in the step 1 to perform bar check, and simultaneously reading the V2X SL resource pool configuration broadcasted by the M (M can be equal to N) cell (selected according to the descending order of the R value), and sensing the resource pool.

Secondly, for the different-frequency cell reselection with unequal priorities, the terminal can execute the following steps 4-6:

and 4, step 4: when a plurality of adjacent cells (cells) on a certain frequency point meet a new air interface pilot frequency cell reselection criterion, the terminal selects the cell with the maximum R value.

And 5: while performing bar check on the cell with the highest R value among the plurality of cells, N neighboring cells are taken in descending order according to the R value, and the configuration of the V2X SL resource pool (transmission resource pool or transmission/reception resource pool) broadcasted by the system information (for example, SIB21 or SIB26) of the N neighboring cells is read in advance, and the resource pool is sensed.

Step 6: if the bar check result is not forbidden access (not barred), reselecting the cell with the highest R value; otherwise, if the bar check result is barred access, selecting a cell with the next highest R value from the plurality of cells obtained in step 4 to perform bar check, and simultaneously reading the configuration of the V2X SL resource pool broadcasted by the M (M may be equal to N) cells (selected in descending order of R values), and sensing the resource pool.

The sensing operation refers to that the terminal carries out resource detection in a preset time window, avoids transmission resource collision as much as possible, and predicts and selects idle resources based on regular historical statistics.

In the sixth embodiment, the sensing result is obtained in advance by sensing the V2X SL resource pool provided by some or all candidate cells while performing the bar check, so that the probability of service interruption caused by changing the resource pool after the terminal reselects to a new cell is reduced.

To facilitate better implementation of the above-described aspects of the embodiments of the present application, the following also provides related apparatus for implementing the above-described aspects.

Please refer to fig. 8, which is a schematic structural diagram of a terminal according to an embodiment of the present application. The terminal 800 includes: a processing block 801.

First, the processing module 801 may be configured to execute the method for information transmission in the embodiment of the present application. Specifically, the method comprises the following steps:

the processing module 801 is configured to: the method comprises the steps of obtaining first information in system information broadcasted by network equipment, wherein the first information is used for indicating whether a resource pool is effective in a neighboring cell of a serving cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and if the resource pool currently used by the terminal is valid in the region, acquiring first information in the system information broadcasted by the network equipment. The resource pool currently used by the terminal is valid, which indicates that the resource pool can be used in a non-service cell, and the terminal acquires the first information under the condition, so that the terminal can be prevented from blindly acquiring the first information.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and judging whether the resource pool currently used by the terminal is effective in the adjacent cells of the serving cell or not in the serving cell.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and acquiring the first information in a system information block n and/or m broadcasted by the service cell, wherein n and m are integers greater than or equal to 1, and m and n are not equal. The terminal may carry the first information in one or any two system information blocks of the serving cell.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: acquiring a system information block 1 broadcasted by an adjacent cell of the serving cell, and the first information in a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and acquiring the first information in a system information block n broadcasted by the adjacent cell of the service cell, wherein n is an integer greater than or equal to 1.

In some possible embodiments of the present application, the acquiring, by the terminal, first information of the network device in the system information includes: the terminal acquires a system information block 1 broadcasted by an adjacent cell of the serving cell and/or the first information in a system information block n, wherein n is an integer greater than or equal to 2.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and acquiring the first information from system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein n and m are integers which are more than or equal to 2, and m and n are not equal.

In some possible embodiments of the present application, the processing module 801 is further configured to: if the second information is the same as the first information, determining that the resource pool configuration currently used by the terminal is valid in a neighboring cell of the serving cell, where the second information is used to indicate that a resource pool area currently used by the terminal is valid, and both the first information and the second information include at least one of the following: area identification, resource pool version identification, public land mobile network identification.

In some possible embodiments of the present application, the first information includes: a first resource pool identifier corresponding to a resource pool currently used by the terminal, and/or validity information corresponding to the first resource pool identifier, where the validity information includes: the resource pool currently used by the terminal is valid in the neighboring cell of the serving cell, or the resource pool currently used by the terminal is invalid in the neighboring cell of the serving cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: if the first information includes a first resource pool identifier corresponding to the resource pool currently used by the terminal, and the validity information corresponding to the first resource pool identifier is valid, it is determined that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell, and the first information includes: at least one resource pool identification and validity information corresponding to each resource pool identification.

In some possible embodiments of the present application, the first information may further include: at least one resource pool identification and a validity information resource pool version identification corresponding to each resource pool identification, and a resource pool version identification and/or a public land mobile network identification; the processing module 801 is further configured to: and if the resource pool version identifier and/or the public land mobile network identifier in the first information are the same as the second information, the resource pool currently used by the terminal is configured to be valid in the adjacent cell of the serving cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: if the cell identifier list corresponding to the resource pool currently used by the terminal includes the cell identifier of the neighboring cell of the serving cell, and/or the first information is the same as the second information, it is determined that the resource pool currently used by the terminal is configured to be valid in the neighboring cell of the serving cell, the second information is used for indicating that the resource pool area currently used by the terminal is valid, and the first information and the second information both include at least one of the following: a resource pool version identification and a public land mobile network identification.

In some possible embodiments of the present application, the second information corresponds to the serving cell, or the second information corresponds to a resource pool available in a region of the serving cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the resource pool currently used by the terminal is valid, selecting a first cell which has the maximum R value in the candidate cells and is valid in the candidate cell configuration of the resource pool currently used by the terminal, wherein the R value is determined according to an R criterion, and the candidate cell is a cell which meets a cell reselection condition in adjacent cells of the serving cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: and executing a checking operation on the first cell to obtain a first checking result.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the first check result is non-access prohibition, determining that the first cell is a reselected cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the first verification result is that access is forbidden, removing the first cell from the candidate cell, or removing the first cell from the candidate cell within a preset time length.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the check results corresponding to N valid cells in the candidate cells, which are configured by the resource pool currently used by the terminal in the candidate cells, are all access-forbidden, determining that the cell with the largest R value and which is not access-forbidden in the candidate cells is a reselected cell, wherein the N cells are part or all of the candidate cells.

In some possible embodiments of the present application, the processing module 801 is further configured to: if the terminal currently uses the first resource pool with the effective area, selecting a second cell with the maximum R value in the candidate cells, wherein the R value is determined according to an R criterion, and the candidate cells are cells meeting cell reselection conditions in adjacent cells of the serving cell; and the terminal executes the check operation on the second cell to obtain a second check result.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the second check result is non-forbidden access and the resource pool configuration currently used by the terminal is effective in the second cell, determining that the second cell is a reselected cell.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the second check result is that the access is forbidden, removing the second cell from the candidate cell, or removing the second cell from the candidate cell within a preset time length.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the resource pool configuration currently used by the terminal is invalid in N cells of which the verification results are non-access-forbidden cells in the candidate cells, determining the cell with the maximum R value and the non-access-forbidden cells in the candidate cells as a reselected cell, wherein the N cells are part or all of the candidate cells.

In some possible embodiments of the present application, the processing module 801 is further configured to: setting the frequency point priority of the side link configuration providing the public wireless access technology to be highest; wherein the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: if the resource pool currently used by the terminal is valid, configuring a side link providing the public radio access technology in the candidate cell, and/or setting the frequency point priority of a frequency point of a cell where the resource pool currently used by the terminal is valid in an adjacent cell of the serving cell to be highest.

In some possible embodiments of the present application, the processing module 801 is further configured to: and determining the relative priority among the priorities of the highest frequency points according to the first priority or the second priority.

In some possible embodiments of the present application, the resource pool currently used by the terminal includes a resource pool corresponding to a side link of the internet of vehicles.

The processing module 801 may be configured to execute the method for determining the priority of the frequency point in this embodiment. The method comprises the following specific steps:

the processing module 801 is configured to: acquiring a first priority and a second priority, wherein the first priority is the frequency point priority of the service transmission of the vehicle networking side link without consideration, and the second priority is the frequency point priority of the service transmission of the vehicle networking side link with consideration; and determining the first priority or the second priority as the priority of the frequency point according to the transmission configuration of the Internet of vehicles service.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and if the terminal is configured to transmit the Internet of vehicles service, determining the second priority as the frequency point priority.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and if the terminal is configured not to transmit the Internet of vehicles service, determining the first priority as the frequency point priority.

Third, the processing module 801 may be configured to execute the method for setting the priority of the frequency point in this embodiment. The method comprises the following specific steps:

the processing module 801 is configured to: determining a sidelink configuration of a public radio access technology, wherein the sidelink configuration of the public radio access technology refers to the same sidelink configuration of radio access technologies between the sidelink configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, side link configuration of wireless access technology required by terminal service; and setting the priority of the frequency point of the side link configuration providing the public wireless access technology to be the highest.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and if the resource pool currently used by the terminal is effective, setting the side link configuration providing the public wireless access technology in the cell and/or the frequency point priority of the frequency point of the effective cell in the cell configured by the resource pool currently used by the terminal to be highest.

In some possible embodiments of the present application, the processing module 801 is further configured to: and determining the relative priority between the highest frequency point priorities according to a first priority or a second priority, wherein the first priority is the frequency point priority without considering the service transmission of the vehicle-networking side link, and the second priority is the frequency point priority with considering the service transmission of the vehicle-networking side link.

Fourthly, the processing module 801 may be configured to execute the resource pool sensing method described in this embodiment of the present application. The method comprises the following specific steps:

the processing module 801 is configured to: determining candidate cells meeting cell reselection conditions; and in the process of executing cell reselection by the terminal, sensing operation is executed on the resource pool of the candidate cell to obtain a corresponding sensing result.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: and performing checking operation on the cell with the maximum R value in the candidate cells.

In some possible embodiments of the present application, the processing module 801 is specifically configured to: acquiring resource pool configurations corresponding to N target cells; the target cell is selected from a target cell set according to a descending order of R values, the target cell set is a cell set corresponding to an adjacent cell of which the R value is greater than the R value of a service cell, or a cell set corresponding to an adjacent cell meeting a pilot frequency cell reselection criterion on a frequency point, the service cell is a cell where the terminal resides, and the R values are obtained through calculation according to the R criterion; and executing the sensing operation on the resource pools corresponding to the N target cells.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the verification result corresponding to the verification operation is forbidden access, removing the cell with the maximum R value in the candidate cells from the candidate cells.

In some possible embodiments of the present application, the processing module 801 is further configured to: and if the verification result corresponding to the verification operation is non-access prohibition, reselecting the cell with the maximum R value in the candidate cells.

In some possible embodiments of the present application, the resource pool is a resource pool corresponding to a side link of an internet of vehicles.

Optionally, the terminal 800 further includes: a receiving module 802 and a sending module 803, where the receiving module 802 may be configured to receive first information broadcast by a network device and perform other receiving functions, and the sending module 803 is configured to indicate a corresponding sending function. Alternatively, the receiving module 802 and the sending module 803 are respectively configured to perform corresponding receiving and sending functions under the control of the processing module 801.

Please refer to fig. 9, which is a schematic structural diagram of a network device according to an embodiment of the present application.

The network device 900 includes: a processing module 901, the processing module 901 is configured to: first information is broadcasted in the system information, and the first information is used for indicating whether the resource pool is valid in a neighboring cell of a serving cell. Optionally, the first information is used to indicate whether the resource pool currently used by the terminal and other resource pools are valid in neighboring cells of the serving cell. The serving cell may be a cell in which the terminal resides.

In some embodiments of the present application, the processing module 901 is specifically configured to: broadcasting the first information in a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In some embodiments of the present application, the processing module 901 is specifically configured to: broadcasting the first information in a system information block 1 of a neighboring cell of the serving cell, and a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal.

In some embodiments of the present application, the processing module 901 is specifically configured to: the network equipment broadcasts the first information in a system information block n of a neighboring cell of the serving cell, where n is an integer greater than or equal to 1.

In some embodiments of the present application, the processing module is specifically configured to: broadcasting the first information in a system information block 1, and/or a system information block n, of a neighboring cell of the serving cell, where n is an integer greater than or equal to 2.

In some embodiments of the present application, the processing module is specifically configured to: broadcasting the first information in system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein n and m are integers which are more than or equal to 2, and m and n are not equal.

In some embodiments of the present application, the first information comprises at least one of: the system comprises an area identifier, a resource pool version identifier and a public land mobile network identifier; or, the first information includes at least one of: cell identity, resource pool version identity and public land mobile network identity.

In some embodiments of the present application, the resource pool currently used by the terminal includes a resource pool corresponding to a side link of the internet of vehicles.

Optionally, the network device 900 may further include: a receiving module 902 and a sending module 903, where the receiving module 902 and the sending module 903 are respectively configured to perform corresponding receiving and sending functions, or configured to perform corresponding receiving and sending functions under the control of the processing module 901.

In addition, the terminal and the network device in this embodiment may also be described in a manner of dividing by other modules, for example, the terminal and the network device may include units or modules corresponding to respective functions or steps or operations in the foregoing method, and these units or modules may be implemented by software, hardware, or hardware in combination with software, so as to support the terminal and the network device to execute or implement the technical solution of this embodiment. It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present application, the technical effect brought by the contents is the same as the method embodiment of the present application, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described herein again.

The embodiment of the present application further provides a computer storage medium, where the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.

Referring to another terminal provided in the embodiment of the present application, referring to fig. 10, a terminal 100 includes: a processor 1003 (wherein the number of the processors 1003 in the terminal 100 can be one or more, and one processor is taken as an example in fig. 10). Optionally, the terminal 100 may further include: a receiver 1001, a transmitter 1002, and a memory 1004.

In some embodiments of the present application, the receiver 1001, the transmitter 1002, the processor 1003 and the memory 1004 may be connected by a bus or other means, wherein the connection by the bus is exemplified in fig. 10.

The memory 1004 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1003. A portion of memory 1004 may also include non-volatile random access memory (NVRAM). The memory 1004 stores an operating system and operating instructions, executable modules or data structures, or a subset or an expanded set thereof, wherein the operating instructions may include various operating instructions for performing various operations. The operating system may include various system programs for implementing various basic services and for handling hardware-based tasks.

The processor 1003 controls the operation of the terminal, and the processor 1003 may also be referred to as a Central Processing Unit (CPU). In a particular application, the various components of the terminal are coupled together by a bus system that may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, the various buses are referred to in the figures as bus systems.

The method disclosed in the embodiment of the present application may be applied to the processor 1003 or implemented by the processor 1003. The processor 1003 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 1003. The processor 1003 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1004, and the processor 1003 reads the information in the memory 1004, and completes the steps of the method in combination with the hardware thereof.

The receiver 1001 may be used to receive input numeric or character information and generate signal input related to related settings and function control of the terminal, the transmitter 1002 may include a display device such as a display screen, and the transmitter 1002 may be used to output numeric or character information through an external interface.

In this embodiment, the processor 1003 is configured to execute the method described in any one of the first to sixth embodiments.

Referring next to another network device provided in an embodiment of the present application, referring to fig. 11, a network device 1100 includes: a processor 1103 (wherein the number of processors 1103 in the network device 1100 may be one or more, one processor is taken as an example in fig. 11). Optionally, the network device 1100 may further include: a receiver 1101, a transmitter 1102, and a memory 1104.

In some embodiments of the present application, the receiver 1101, the transmitter 1102, the processor 1103 and the memory 1104 may be connected by a bus or other means, wherein fig. 11 illustrates the connection by a bus.

The memory 1104, which may include both read-only memory and random-access memory, provides instructions and data to the processor 1103. A portion of the memory 1104 may also include NVRAM. The memory 1104 stores an operating system and operating instructions, executable modules or data structures, or a subset or an expanded set thereof, wherein the operating instructions may include various operating instructions for performing various operations. The operating system may include various system programs for implementing various basic services and for handling hardware-based tasks.

The processor 1103 controls the operation of the network device, and the processor 1103 may also be referred to as a CPU. In a particular application, the various components of the network device are coupled together by a bus system that may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. For clarity of illustration, the various buses are referred to in the figures as a bus system.

The method disclosed in the embodiments of the present application can be applied to the processor 1103 or implemented by the processor 1103. The processor 1103 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in software form in the processor 1103. The processor 1103 described above may be a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1104, and the processor 1103 reads the information in the memory 1104 and completes the steps of the method in combination with the hardware.

In this embodiment, the processor 1103 is configured to execute the method according to any one of the first to sixth embodiments.

In another possible design, the chip includes: a processing unit, which may be for example a processor, and a communication unit, which may be for example an input/output interface, a pin or a circuit, etc. The processing unit can execute the computer execution instructions stored in the storage unit to make the chip in the terminal execute the method described in any one of the first to sixth embodiments. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM), and the like.

Wherein any of the aforementioned processors may be a general purpose central processing unit, a microprocessor, an ASIC, or one or more integrated circuits configured to control the execution of the programs of the method of the first aspect.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments of the apparatus provided in the present application, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be implemented as one or more communication buses or signal lines.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by software plus necessary general-purpose hardware, and certainly can also be implemented by special-purpose hardware including special-purpose integrated circuits, special-purpose CPUs, special-purpose memories, special-purpose components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, for the present application, the implementation of a software program is more preferable. Based on such understanding, the technical solutions of the present application may be substantially embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

1. An information transmission method, comprising:

a terminal acquires first information in system information broadcasted by network equipment, wherein the first information is used for indicating whether a resource pool is effective in an adjacent cell of a service cell;

the method further comprises the following steps:

if the second information is the same as the first information, the terminal determines that the resource pool configuration currently used by the terminal is valid in the neighboring cell of the serving cell, wherein the second information is used for indicating that the resource pool area currently used by the terminal is valid, and the first information and the second information both include at least one of the following: area identification, resource pool version identification and public land mobile network identification;

the method further comprises the following steps:

the terminal selects a first cell which has the maximum R value in candidate cells and is effectively configured in the candidate cells by the current resource pool used by the terminal, or a second cell which has the maximum R value in the candidate cells, wherein the R value is determined according to an R criterion, and the candidate cells are cells which meet cell reselection conditions in adjacent cells of the serving cell.

2. The method of claim 1, wherein the terminal acquires the first information broadcast by the network device in the system information, and comprises:

and if the resource pool currently used by the terminal is valid, the terminal acquires the first information.

3. The method according to claim 1 or 2, wherein the terminal acquires the first information in the system information broadcast by the network device, and comprises:

and the terminal acquires the first information in a system information block n and/or m broadcasted by the service cell, wherein n and m are integers more than or equal to 1, and m and n are unequal.

4. The method according to claim 1 or 2, wherein the terminal acquires the first information in the system information broadcast by the network device, and comprises:

the terminal acquires a system information block 1 broadcasted by an adjacent cell of the serving cell, and the first information in a system information block n and/or m of the serving cell, wherein n and m are integers greater than or equal to 1, and m and n are not equal.

5. The method according to claim 1 or 2, wherein the terminal acquires the first information broadcast by the network device in the system information, and comprises:

and the terminal acquires the first information in a system information block n broadcasted by the adjacent cell of the service cell, wherein n is an integer greater than or equal to 1.

6. The method according to claim 1 or 2, wherein the terminal acquires the first information of the network device in the system information, and comprises:

the terminal acquires a system information block 1 broadcasted by a neighboring cell of the serving cell and/or the first information in a system information block n, wherein n is an integer greater than or equal to 2.

7. The method according to claim 1 or 2, wherein the terminal acquires the first information of the network device in the system information, and comprises:

and the terminal acquires the first information from system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein n and m are integers which are more than or equal to 2, and m and n are unequal.

8. The method according to any one of claims 1-2,

the first information comprises: a first resource pool identifier corresponding to a resource pool currently used by the terminal, and/or validity information corresponding to the first resource pool identifier, where the validity information includes: the resource pool currently used by the terminal is valid in the neighboring cell of the serving cell, or the resource pool currently used by the terminal is invalid in the neighboring cell of the serving cell.

9. The method of claim 3,

10. The method of claim 4,

11. The method of claim 5,

12. The method of claim 6,

13. The method of claim 7,

14. The method of claim 1, further comprising:

and the terminal executes verification operation on the first cell to obtain a first verification result.

15. The method of claim 14, further comprising:

and if the first check result is non-access prohibition, the terminal determines that the first cell is a reselected cell.

16. The method of claim 14, further comprising:

and if the first verification result is that the access is forbidden, the terminal removes the first cell from the candidate cell, or removes the first cell from the candidate cell within a preset time length.

17. The method of claim 1, further comprising:

if the check results corresponding to N valid cells configured in the candidate cells by the resource pool currently used by the terminal in the candidate cells are all prohibited to access, the terminal determines that the cell with the largest R value and which is not prohibited to access in the candidate cells is a reselected cell, and the N cells are part or all of the candidate cells.

18. The method of claim 14, further comprising:

19. The method of claim 15, further comprising:

if the check results corresponding to N valid cells configured in the candidate cells by the resource pool currently used by the terminal in the candidate cells are all prohibited to access, the terminal determines that the cell with the maximum R value and which is not prohibited to access in the candidate cells is a reselected cell, and the N cells are part or all of the candidate cells.

20. The method of claim 16, further comprising:

21. The method according to any one of claims 1-2, further comprising:

and the terminal executes the checking operation on the second cell to obtain a second checking result.

22. The method of claim 3, further comprising:

and the terminal executes the check operation on the second cell to obtain a second check result.

23. The method of claim 4, further comprising:

24. The method of claim 5, further comprising:

25. The method of claim 6, further comprising:

26. The method of claim 7, further comprising:

27. The method of claim 8, further comprising:

28. The method of claim 9, further comprising:

29. The method of claim 21, further comprising: and if the second check result is non-forbidden access and the resource pool configuration currently used by the terminal is effective in the second cell, the terminal determines that the second cell is a reselected cell.

30. The method of claim 21, further comprising:

and if the second check result is that access is forbidden, the terminal removes the second cell from the candidate cell, or removes the second cell from the candidate cell within a preset time length.

31. The method of claim 21, further comprising:

and if the resource pool configuration currently used by the terminal is invalid in N cells of which the verification results are non-access-forbidden cells in the candidate cells, the terminal determines the cell which has the maximum R value and is not access-forbidden cells in the candidate cells as a reselected cell, wherein the N cells are part or all of the candidate cells.

32. The method of claim 29, further comprising:

33. The method of claim 30, further comprising:

34. The method of claim 31, further comprising:

35. The method according to any one of claims 1-2, further comprising:

if the terminal is configured not to perform the communication of the vehicle networking side link, the terminal determines the frequency point priority of the frequency point of the serving cell and/or the frequency point of the adjacent cell of the serving cell by adopting a first priority, wherein the first priority is the frequency point priority without considering the service transmission of the vehicle networking side link.

36. The method of claim 3, further comprising:

if the terminal is configured not to perform the communication of the vehicle-networking side link, the terminal determines the frequency point priority of the frequency point where the serving cell and/or the adjacent cell of the serving cell are located by adopting a first priority, wherein the first priority is the frequency point priority of the service transmission without considering the vehicle-networking side link.

37. The method of claim 4, further comprising:

38. The method of claim 5, further comprising:

39. The method of claim 6, further comprising:

40. The method of claim 7, further comprising:

41. The method of claim 8, further comprising:

42. The method of claim 9, further comprising:

43. The method of claim 1, further comprising:

44. The method of claim 14, further comprising:

45. The method of claim 15, further comprising:

46. The method of claim 16, further comprising:

47. The method of claim 17, further comprising:

48. The method of claim 21, further comprising:

49. The method of claim 29, further comprising:

50. The method of claim 30, further comprising:

51. The method of claim 31, further comprising:

52. The method according to claim 1 or 2, characterized in that the method further comprises:

if the terminal is configured to perform the communication of the vehicle-networking side link, the terminal determines the frequency point priority of the frequency point of the serving cell and/or the adjacent cell of the serving cell by using a second priority, wherein the second priority is the frequency point priority considering the service transmission of the vehicle-networking side link.

53. The method of claim 3, further comprising:

54. The method of claim 4, further comprising:

55. The method of claim 5, further comprising:

and if the terminal is configured to perform the communication of the vehicle networking side link, the terminal determines the frequency point priority of the frequency point of the service cell and/or the frequency point of the adjacent cell of the service cell by using a second priority, wherein the second priority is the frequency point priority considering the service transmission of the vehicle networking side link.

56. The method of claim 6, further comprising:

57. The method of claim 7, further comprising:

58. The method of claim 8, further comprising:

59. The method of claim 9, further comprising:

60. The method of claim 1, further comprising:

61. The method of claim 14, further comprising:

62. The method of claim 15, further comprising:

63. The method of claim 46, further comprising:

64. The method of claim 17, further comprising:

65. The method of claim 21, further comprising:

66. The method of claim 29, further comprising:

67. The method of claim 30, further comprising:

68. The method of claim 31, further comprising:

69. The method according to claim 1 or 2, characterized in that the method further comprises:

the terminal sets the frequency point priority of the side link configuration providing the public wireless access technology to be the highest;

wherein the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

70. The method of claim 3, further comprising:

71. The method of claim 4, further comprising:

the side link configuration of the public radio access technology refers to the same side link configuration of the radio access technology between the side link configurations of any two or three types of radio access technologies as follows: side link configuration of wireless access technology supported by terminal capability, side link configuration of wireless access technology authorized by the terminal, and side link configuration of wireless access technology required by terminal service.

72. The method of claim 5, further comprising:

73. The method of claim 6, further comprising:

74. The method of claim 7, further comprising:

75. The method of claim 8, further comprising:

76. The method of claim 9, further comprising:

77. The method of claim 1, further comprising:

78. The method of claim 14, further comprising:

79. The method of claim 15, further comprising:

80. The method of claim 16, further comprising:

81. The method of claim 17, further comprising:

82. The method of claim 21, further comprising:

83. The method of claim 29, further comprising:

84. The method of claim 30, further comprising:

85. The method of claim 31, further comprising:

86. An information transmission method, comprising:

the method includes the steps that a network device broadcasts system information, wherein the system information includes first information, the first information is used for indicating whether a resource pool is effective in a neighboring cell of a serving cell or not, so that a terminal determines that a resource pool configuration currently used by the terminal is effective in the neighboring cell of the serving cell when second information is the same as the first information, the second information is used for indicating that a resource pool area currently used by the terminal is effective, and the first information and the second information both include at least one of the following: area identification, resource pool version identification and public land mobile network identification; the terminal selects a first cell with the maximum R value in candidate cells and the current resource pool configuration used by the terminal in the candidate cells, or a second cell with the maximum R value in the candidate cells, wherein the R value is determined according to an R criterion, and the candidate cells are cells meeting cell reselection conditions in adjacent cells of the serving cell.

87. The method of claim 86, wherein the network device broadcasts the first information in system information comprising:

the network equipment broadcasts the first information in a system information block n and/or m of the service cell, wherein n and m are integers which are larger than or equal to 1, and m and n are not equal.

88. The method of claim 86, wherein the network device broadcasts the first information in system information comprising:

the network device broadcasts the first information in a system information block 1 of a neighboring cell of the serving cell and a system information block n and/or m of the serving cell, where n and m are integers greater than or equal to 1, and m and n are not equal to each other.

89. The method of claim 86, wherein the network device broadcasts the first information in system information comprising:

the network equipment broadcasts the first information in a system information block n of a neighboring cell of the serving cell, where n is an integer greater than or equal to 1.

90. The method of claim 86, wherein the network device broadcasts the first information in system information comprising:

the network device broadcasts the first information in a system information block 1 and/or a system information block n of a neighboring cell of the serving cell, where n is an integer greater than or equal to 2.

91. The method of claim 86, wherein the network device broadcasts the first information in system information comprising: the network equipment broadcasts the first information in system information blocks m and n broadcasted by the adjacent cells of the service cell, wherein both n and m are integers which are more than or equal to 2, and m and n are not equal.

92. The method of any one of claims 86-91, wherein the first information comprises at least one of: an area identifier, a resource pool version identifier and a public land mobile network identifier; or, the first information includes at least one of: cell identity, resource pool version identity and public land mobile network identity.

93. The method of any one of claims 86-91, wherein the first information comprises: a first resource pool identifier corresponding to a resource pool currently used by the terminal, and/or validity information corresponding to the first resource pool identifier, where the validity information includes: the resource pool currently used by the terminal is valid in the neighboring cell of the serving cell, or the resource pool currently used by the terminal is invalid in the neighboring cell of the serving cell.

94. A communications apparatus, comprising: a processor coupled to a memory, the memory configured to store operational instructions, the processor configured to perform operations of the terminal in the method of any of claims 1-91 or perform operations of the network device in the method of any of claims 86-93 by invoking the operational instructions.