CN112788708A - Resident cell determination method, information sending method, terminal and network side equipment - Google Patents
Resident cell determination method, information sending method, terminal and network side equipment Download PDFInfo
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- CN112788708A CN112788708A CN201911076023.XA CN201911076023A CN112788708A CN 112788708 A CN112788708 A CN 112788708A CN 201911076023 A CN201911076023 A CN 201911076023A CN 112788708 A CN112788708 A CN 112788708A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The invention provides a resident cell determining and information sending method, a terminal and network side equipment, and relates to the technical field of communication. The resident cell determining method is applied to a terminal and comprises the following steps: acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service; and determining the resident cell of the terminal according to the indication information. According to the scheme, the indication information of the priority corresponding to the first service is carried in the system information which is broadcast periodically, so that the terminal can select a proper cell to reside according to the indication information of the priority, and the accuracy of cell selection/reselection is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a network device for determining a cell to camp on and transmitting information.
Background
The technology of vehicle to outside (V2X) information exchange can sense the surrounding conditions of vehicles in real time, share road information and perform early warning in time by means of wireless communication between vehicles, vehicle to road side infrastructure, and vehicles and passersby, and has become a research hotspot for solving the problem of road safety in all countries in the world at present.
In the existing Long Term Evolution (LTE) V2X technology (Rel-14 LTE V2X technology), PC5 interface (also called direct link, described as sildelink in the protocol) broadcast communication for transmitting data between a User Equipment (UE) and the UE can already support transmission of basic traffic based on road security.
With the further development of the car networking technology, NR V2X was further introduced in the New access network system (New RAT, NR) system of the fifth Generation (5Generation, 5G). Compared with the LTE V2X at the present stage, the NR V2X has a changed acquisition mode of system information, and introduces a request-based (on demand) mode, that is, the base station does not periodically broadcast some system information, and only provides corresponding system information based on a terminal request; this way saves resources occupied by broadcasting, but also causes that the UE cannot select according to the broadcast information acquired in the on demand way when selecting/reselecting the cell. For example: it is clear in NR V2X that a cell providing only anchor (anchor) carrier information is not a high priority cell for a UE supporting V2X traffic. However, the anchor carrier information of V2X is part of corresponding broadcast system information belonging to V2X, which can be acquired in an on demand manner. The UE can acquire the V2X system information only by sending a request to the base station after camping on one cell. This causes the UE to erroneously set the cell providing only the anchor carrier information as the high priority cell during cell selection/reselection, and causes the problem that the UE cannot distinguish the cell providing only the anchor carrier information from the cell providing the V2X configuration information in front of the selected cell.
Disclosure of Invention
The embodiment of the invention provides a resident cell determining and information sending method, a terminal and network side equipment, which aim to solve the problems that in the prior art, a cell which only provides anchor carrier information and a cell which provides V2X configuration information cannot be distinguished in a selected cell by UE, and the cell which only provides the anchor carrier information is mistakenly used as a high-priority cell when the UE performs cell selection/reselection, so that the inaccuracy of cell selection/reselection is caused.
In order to solve the above technical problem, an embodiment of the present invention provides a method for determining a cell to camp on, where the method is applied to a terminal, and includes:
acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
and determining the resident cell of the terminal according to the indication information.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
Optionally, the indication information is used to indicate: when the target cell indicates the cell selection or reselection priority of the terminal performing the first service or the cell selection or reselection priority of the target cell for the terminal performing the first service, determining the cell where the terminal resides according to the indication information includes:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the determining the terminal resident cell according to the indication information includes:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the determining the terminal resident cell according to the indication information includes:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
acquiring scheduling information of the system information of the candidate cell and a service support level for a first service;
the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell;
and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
Optionally, the indication information is used to indicate: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, after the system information periodically broadcasted by the network side device is acquired, the method further includes:
the terminal performing the second service measures the signal quality of the cell;
determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second traffic is different from the first traffic.
The embodiment of the invention also provides an information sending method, which is applied to network side equipment and comprises the following steps:
periodically broadcasting system information to a terminal;
the system information comprises indication information of priority corresponding to the first service.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
An embodiment of the present invention further provides a terminal, including: a memory, a processor, and a program stored on the memory and executable on the processor; the processor implements the following steps when executing the program:
acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
and determining the resident cell of the terminal according to the indication information.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
Optionally, the indication information is used to indicate: when the target cell indicates the cell selection or reselection priority of the terminal performing the first service or the cell selection or reselection priority of the target cell with respect to the terminal performing the first service, the processor executes the program for determining the terminal residing cell according to the indication information, and implements the following steps:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the processor executes the determined program of the terminal resident cell according to the indication information, and the following steps are realized:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the processor executes the determined program of the terminal resident cell according to the indication information, and the following steps are realized:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
acquiring scheduling information of the system information of the candidate cell and a service support level for a first service;
the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell;
and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
Optionally, the indication information is used to indicate: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, the processor further implements the following steps when executing the program:
the terminal performing the second service measures the signal quality of the cell;
determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second traffic is different from the first traffic.
An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor implements the following steps when executing the program:
periodically broadcasting system information to a terminal through a transceiver;
the system information comprises indication information of priority corresponding to the first service.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the above-mentioned camping cell determining method or the above-mentioned information sending method.
An embodiment of the present invention further provides a terminal, including:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring system information periodically broadcasted by network side equipment, and the system information comprises indication information of priority corresponding to a first service;
and the first determining module is used for determining the cell where the terminal resides according to the indication information.
An embodiment of the present invention further provides a network side device, including:
the broadcasting module is used for periodically broadcasting the system information to the terminal;
the system information comprises indication information of priority corresponding to the first service.
The invention has the beneficial effects that:
according to the scheme, the indication information of the priority corresponding to the first service is carried in the system information which is broadcast periodically, so that the terminal can select a proper cell to reside according to the indication information of the priority, and the accuracy of cell selection/reselection is improved.
Drawings
FIG. 1 is a schematic diagram of a network architecture for direct communication;
fig. 2 shows a schematic diagram of information transmission and reception in a 5G system;
fig. 3 is a flowchart illustrating a method for determining a camped cell according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an information sending method according to an embodiment of the present invention;
fig. 5 shows a block diagram of a terminal according to an embodiment of the invention;
fig. 6 is a diagram showing a configuration of a terminal according to an embodiment of the present invention;
fig. 7 is a block diagram of a network device according to an embodiment of the present invention;
fig. 8 is a diagram showing a configuration of a network device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Some concepts related to embodiments of the present invention are first explained below.
Devices and devices in close proximity to each other allow direct communication between the devices. For convenience of description, a direct communication link between devices is defined as a Sidelink link, and a corresponding wireless interface thereof is referred to as a direct communication interface (also referred to as a Sidelink interface or a PC5 interface); the cellular communication link between the network and the direct communication device is called uulink, the corresponding interface is called Uu interface, and the communication diagram of V2X is shown in fig. 1.
The devices that communicate directly may also all be on-line or off-line, or some may be on-line and some off-line. The devices participating in direct communication, i.e. on-line, are located within the coverage of the 3GPP base station communication carrier, and the devices participating in direct communication, i.e. off-line, are not located within the coverage of the 3GPP base station communication carrier.
Typical direct communication scenarios include the following three:
one-to-one communication (unicast) between direct communication terminals;
a device can send the same data to all devices in a communication group at a time (multicast);
one device can send the same data (broadcast) to all nearby devices at once (LTE systems only support broadcast).
Fig. 2 is a schematic diagram of system information transmission and reception in a 5G system, where a UE may receive system information periodically broadcast and transmitted by a 5G NR (New RAT) base station, and the UE may also acquire the system information transmitted by the 5G NR base station as needed by a request/response manner. Further, periodically broadcasted system information (periodic broadcast SI) is generally the most necessary system information for UEs to camp on a cell and access the camped cell, e.g., all or part of the content in the Master Information Block (MIB), system information block one (SIB1), and system information block two (SIB 2); and the on-demand system information (on-demand SI) is other system information, such as all or part of the contents of SIB3 to SIB 20.
The invention provides a resident cell determining and information sending method, a terminal and a network side device, aiming at the problems that in the prior art, a cell which only provides anchor carrier information and a cell which provides V2X configuration information cannot be divided in a selected cell by a UE, and the UE mistakenly takes the cell which only provides the anchor carrier information as a high-priority cell during cell selection/reselection to cause inaccuracy of cell selection/reselection.
As shown in fig. 3, the method for determining a camped cell according to the embodiment of the present invention is applied to a terminal, and includes:
it should be noted that the system information includes indication information of a priority corresponding to the first service; the first service may be any service performed by the terminal, for example, a V2X service.
it should be noted that, the terminal performing the first service selects or reselects the cell according to the indication information of the priority corresponding to the first service, and resides in the cell meeting the service requirement.
It should be noted that the indication information in the embodiment of the present invention is used to indicate at least one of the following:
a11, the cell selection or reselection priority of the target cell to the terminal which performs the first service;
it should be noted that the target cell refers to a certain cell or certain cells under the network side device.
A12, indicating information of the cell selection or reselection priority of the target cell to the terminal performing the first service;
a13, service support level of the target cell for the first service.
The following specifically describes embodiments of the present invention from the viewpoint of indicating different contents by the indication information, respectively.
The indication information is used for indicating the priority of the target cell for cell selection or reselection of the terminal for carrying out the first service
It should be noted that, in this case, the specific implementation manner of step 32 is: a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
It should be noted that the signal quality of each cell is measured so as to find at least one candidate cell satisfying the terminal requirement according to the S-criterion, and then find the corresponding cell with the highest priority among the candidate cells as the camping cell of the terminal.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells all satisfy the S criterion for the terminal, and the signal strength received by the terminal is respectively cell 3, cell 1 and cell 2 from strong to weak. For a cell reselection scenario, the signal quality of a cell 4 where a terminal resides is reduced, and cell reselection is required, where the terminal performs a V2X service, the cell selection/reselection priority of a cell that does not provide V2X information for the V2X service is 3, the cell selection/reselection priority of a cell that only provides V2X anchor carrier information for the V2X service is 2, the cell selection/reselection priority of a cell that provides V2X actual configuration information for the V2X service is 1, and when the terminal performs cell reselection, the terminal first measures the signal quality of each cell, and determines, through measurement, that the cell 1, the cell 2, and the cell 3 are candidate cells; then the terminal respectively reads SIB1 of cell 1, cell 2 and cell 3, and obtains cell reselection priority corresponding to V2X service; and the terminal selects the cell 2 with the highest V2X cell reselection priority as the resident cell.
It should be further noted that, when the terminal performs the first service, the specific execution process of the terminal is as follows: the terminal performing the second service measures the signal quality of the cell; directly determining the cell with the strongest signal quality as the resident cell of the terminal;
wherein the second service is different from the first service, for example, in case that the first service is a V2X service, the second service is a non-V2X service.
It should be noted that, in the embodiment of the present invention, the limitation on the first service and the second service is only an example, and is not limited to the V2X service and the non-V2X service mentioned in the embodiment of the present invention, and any other service forms as long as the requirements of the first service and the second service are met belong to the protection scope of the embodiment of the present invention.
That is, in this case, if the terminal does not perform the first service, the priority of cell selection/reselection corresponding to the first service is not considered when performing cell selection/reselection.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells all satisfy the S criterion for the terminal, and the signal strength received by the terminal is respectively cell 3, cell 1 and cell 2 from strong to weak. For a cell reselection scenario, the signal quality of a cell 4 where a terminal resides is reduced, and cell reselection is required, where the terminal performs a V2X service, the cell reselection priority of a cell that does not provide V2X information for a V2X service is 3, the cell reselection priority of a cell that only provides V2X anchor carrier information for a V2X service is 2, the cell reselection priority of a cell that provides V2X actual configuration information for a V2X service is 1, and when performing cell reselection, the terminal that performs a non-V2X service measures the signal quality of each cell, and determines, through measurement, that cell 1, cell 2, and cell 3 are candidate cells; then the terminal reads the SIB1 of the cell 1, the cell 2 and the cell 3, respectively, ignores the priority of cell reselection corresponding to the V2X service, and selects the cell 3 with the highest received signal strength as the resident cell.
Second, the indication information is used for indicating the priority level of the target cell for the cell selection or reselection of the terminal for the first service
It should be noted that, in this case, the specific implementation manner of step 32 is: a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells meet S criteria for the terminal, and the signal strength received by the terminal is respectively a cell 3, a cell 1 and a cell 2 from strong to weak; for a cell reselection scenario, the signal quality of a cell 4 where the terminal resides is reduced, and cell reselection is required, where the terminal performs a V2X service, and the cell that does not provide V2X information and the cell that only provides V2X anchor carrier information have a low cell reselection priority for the V2X service, and the cell that provides V2X actual configuration information has a high cell reselection priority for the V2X service; when a terminal reselects a cell, the terminal firstly measures the signal quality of the cell, determines that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then respectively reads SIB1 of the cell 1, the cell 2 and the cell 3, acquires the reselection priority level indication information of the cell corresponding to the V2X service, and finally selects the cell 2 with the reselection priority level indication information of the V2X cell and indicated as high priority as a resident cell.
It should be further noted that, when the terminal performs the first service, the specific execution process of the terminal is as follows: the terminal performing the second service measures the signal quality of the cell; directly determining the cell with the strongest signal quality as the resident cell of the terminal;
wherein the second service is different from the first service, for example, in case that the first service is a V2X service, the second service is a non-V2X service.
That is, in this case, if the terminal does not perform the first service, the priority level indication information of the cell selection/reselection corresponding to the first service is not considered when performing the cell selection/reselection.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells meet S criteria for the terminal, and the signal strength received by the terminal is respectively a cell 3, a cell 1 and a cell 2 from strong to weak; for a cell reselection scenario, the signal quality of the cell 4 where the terminal resides is reduced, and cell reselection is required, at this time, the terminal performs a non-2X service, and the cell that does not provide V2X information and the cell that only provides V2X anchor carrier information have a low cell selection/reselection priority for the V2X service, and the cell that provides the V2X actual configuration information has a high cell selection/reselection priority for the V2X service; when the terminal reselects the cell, the terminal firstly measures the signal quality of the cell, determines that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then reads the SIB1 of the cell 1, the cell 2 and the cell 3, ignores the priority level indication information of cell reselection corresponding to the V2X service, and finally selects the cell 3 with the highest received signal strength as a resident cell.
It should be noted that, in the above two cases, when the terminal obtains multiple camping cells according to the above implementation, it may select a cell for camping according to the implementation of the terminal, for example, select a cell with the strongest signal for camping according to the signal strength, for example, select a cell in which the terminal has camped to camp according to whether the terminal camps in a certain cell, and it should be noted that the above example is only an example, and does not limit the present invention.
Thirdly, the indication information is used for indicating the service support level of the target cell for the first service
It should be noted that, in this case, a specific implementation manner of step 32 may include one of the following:
the method comprises the steps that a terminal for first service measures the signal quality of each cell of network side equipment to determine a candidate cell; determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell; and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells meet S criteria for the terminal, and the signal strength received by the terminal is respectively a cell 3, a cell 1 and a cell 2 from strong to weak; for a cell reselection scenario, the signal quality of a cell 4 where a terminal resides is reduced, and cell reselection is required, at this time, the terminal performs a V2X service, a cell 3 which does not provide V2X information indicates that V2X is not supported in SIB1, a cell 1 which only provides V2X anchor carrier information indicates that only anchor information is provided in SIB1, and a cell 2 which provides V2X actual configuration information indicates that V2X configuration is provided in SIB 1; when a terminal reselects a cell, the signal quality of each cell is measured, after measurement, it is determined that cell 1, cell 2 and cell 3 become candidate cells, then SIB1 of cell 1, cell 2 and cell 3 is read, the service support level of the cell to V2X is obtained, and finally the terminal takes cell 2 supporting V2X configuration as a resident cell.
Secondly, the terminal performing the first service measures the signal quality of each cell of the network side equipment to determine a candidate cell; acquiring scheduling information of the system information of the candidate cell and a service support level for a first service; the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell; and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
In this case, a cell indicated by the scheduling information corresponding to the cell as a cell for performing the first service is selected from the candidate cells, and then a cell having a service level that supports the configuration of the first service is determined as a camped cell in the candidate cells.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells meet S criteria for the terminal, and the signal strength received by the terminal is respectively a cell 3, a cell 1 and a cell 2 from strong to weak; for a cell reselection scenario, the signal quality of a cell 4 where a terminal resides is reduced, and cell reselection is required, at this time, a V2X service is performed by the terminal, a cell 3 which does not provide V2X information does not have any V2X-related indication information in an SIB1, an SIB which is related to V2X is not scheduled in an SIB1, a cell 1 which only provides V2X anchor carrier information includes scheduling of V2X system information in an SIB1 and indicates that the cell supports anchor carrier configuration, and a cell 2 which provides V2X actual configuration information includes V2X system information in an SIB 1; when a terminal reselects a cell, the signal quality of the cell is measured firstly, the cell 1, the cell 2 and the cell 3 are determined to become candidate cells through measurement, then the terminal reads SIB1 of the cell 1, the cell 2 and the cell 3 respectively, system information scheduling information of the cell and information whether only V2X anchor carrier configuration is supported are obtained, the terminal selects the cell 1 and the cell 2 containing V2X SIB according to whether the SIB1 contains scheduling information of V2X related SIB, then the terminal indicates that only V2X anchor carrier configuration is supported according to the cell 1 in SIB1, and finally the cell 2 supporting V2X configuration is selected as a resident cell.
It should be further noted that, when the terminal performs the first service, the specific execution process of the terminal is as follows: the terminal performing the second service measures the signal quality of the cell; directly determining the cell with the strongest signal quality as the resident cell of the terminal;
wherein the second service is different from the first service, for example, in case that the first service is a V2X service, the second service is a non-V2X service.
That is, in this case, if the terminal does not perform the first service, the service support level of the first service is not considered when performing cell selection/reselection.
For example, the description will be made by taking an example in which cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information. The 3 cells meet S criteria for the terminal, and the signal strength received by the terminal is respectively a cell 3, a cell 1 and a cell 2 from strong to weak; for a cell reselection scenario, the signal quality of a cell 4 where a terminal resides is reduced, and cell reselection is required, at this time, a non-V2X service is performed by the terminal, a cell 3 which does not provide V2X information indicates that V2X is not supported in SIB1, a cell 1 which only provides V2X anchor carrier information indicates that only anchor information is provided in SIB1, and a cell 2 which provides V2X actual configuration information indicates that V2X configuration is provided in SIB 1; when the terminal reselects the cell, the terminal firstly measures the signal quality of each cell, determines that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then respectively reads the SIB1 of the cell 1, the cell 2 and the cell 3, ignores the support level of the cell to the V2X service, and selects the cell 3 with the highest received signal strength as a resident cell.
It should be noted that, in this case, when the terminal obtains multiple resident cells according to the above implementation, a cell may be selected according to the implementation of the terminal to camp on, for example, a cell with the highest priority is selected according to the priority corresponding to the cell to camp on, if the priorities are the same, a cell with the strongest signal may be further selected according to the signal strength to camp on, for example, a cell where the terminal once camps on is selected to camp on according to whether the terminal camps on a certain cell, and it should be noted that the foregoing examples are merely examples and do not constitute a limitation to the present invention.
It should be noted that, the present invention mainly provides, for a scenario in which priority differentiation is required during cell selection/reselection and specific information content is broadcasted in system information acquired in an on demand manner, indication information carrying priority corresponding to a specific service in the periodically broadcasted system information, so that when a terminal performs cell selection/reselection, priority of a cell can be determined without acquiring content of the on demand system information, and determination of a resident cell can be accurately performed, thereby improving accuracy of cell selection/reselection.
As shown in fig. 4, an information sending method according to an embodiment of the present invention is applied to a network side device, and includes:
the system information comprises indication information of priority corresponding to the first service.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
It should be noted that all descriptions regarding the network-side device in the foregoing embodiments are applicable to the embodiment of the information sending method, and the same technical effects can be achieved.
As shown in fig. 5, an embodiment of the present invention provides a terminal 50, including:
an obtaining module 51, configured to obtain system information periodically broadcast by a network device, where the system information includes priority indication information corresponding to a first service;
and a first determining module 52, configured to determine, according to the indication information, a cell where the terminal resides.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
Optionally, the indication information is used to indicate: when the priority of the cell selection or reselection of the target cell to the terminal performing the first service or the priority of the cell selection or reselection of the target cell to the terminal performing the first service indicates information, the first determining module 52 includes:
a first determining unit, configured to measure, by a terminal performing a first service, signal quality of each cell of a network-side device, and determine a candidate cell;
a second determining unit, configured to determine, according to the indication information for the candidate cell, a priority corresponding to the candidate cell;
and a third determining unit, configured to determine the candidate cell with the highest priority as the camped cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the first determining module 52 includes:
a fourth determining unit, configured to measure, by the terminal that performs the first service, signal quality of each cell of the network-side device, and determine a candidate cell;
a fifth determining unit, configured to determine, according to the indication information for the candidate cell, a service level supported by the candidate cell;
a sixth determining unit, configured to determine the candidate cell with the service level being the configuration supporting the first service as the camped cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the first determining module 52 includes:
a seventh determining unit, configured to measure, by the terminal that performs the first service, signal quality of each cell of the network-side device, and determine a candidate cell;
an obtaining unit, configured to obtain scheduling information of system information of the candidate cell and a service support level for a first service;
an eighth determining unit, configured to determine the scheduling information as a candidate cell of the first service, as the first cell;
a ninth determining unit, configured to determine a first cell in the first cell whose service level is configured to support the first service as a camped cell.
Optionally, the indication information is used to indicate: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, after the obtaining module 51 obtains the system information periodically broadcast by the network side device, the method further includes:
the measurement module is used for measuring the signal quality of the cell by the terminal for the second service;
a second determining module, configured to determine a cell with the strongest signal quality as a cell where the terminal resides;
wherein the second traffic is different from the first traffic.
It should be noted that the terminal embodiment is a terminal corresponding to the above method embodiments one to one, and all implementation manners in the above method embodiments are applicable to the terminal embodiment, and the same technical effect can be achieved.
As shown in fig. 6, the embodiment of the present invention further provides a terminal 60, which includes a processor 61, a transceiver 62, a memory 63, and a program stored in the memory 63 and operable on the processor 61; the transceiver 62 is connected to the processor 61 and the memory 63 through a bus interface, wherein the processor 61 is configured to read a program in the memory and execute the following processes:
acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
and determining the resident cell of the terminal according to the indication information.
It should be noted that in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 61 and various circuits of memory represented by memory 63 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 62 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different transmitters, the user interface 64 may also be an interface capable of interfacing externally to desired devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 61 is responsible for managing the bus architecture and general processing, and the memory 63 may store data used by the processor 61 in performing operations.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
Optionally, the indication information is used to indicate: when the target cell indicates the cell selection or reselection priority of the terminal performing the first service or the cell selection or reselection priority of the target cell with respect to the terminal performing the first service, the processor executes the program for determining the terminal residing cell according to the indication information, and implements the following steps:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the processor executes the determined program of the terminal resident cell according to the indication information, and the following steps are realized:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used to indicate: when the target cell supports the service support level of the first service, the processor executes the determined program of the terminal resident cell according to the indication information, and the following steps are realized:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
acquiring scheduling information of the system information of the candidate cell and a service support level for a first service;
the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell;
and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
Optionally, the indication information is used to indicate: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, the processor further implements the following steps when executing the program:
the terminal performing the second service measures the signal quality of the cell;
determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second traffic is different from the first traffic.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for determining a cell to camp on applied to a terminal.
As shown in fig. 7, an embodiment of the present invention provides a network-side device 70, including:
a broadcasting module 71, configured to periodically broadcast system information to a terminal;
the system information comprises indication information of priority corresponding to the first service.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
It should be noted that the embodiment of the network side device is a network side device corresponding to the embodiment of the method one to one, and all implementation manners in the embodiment of the method are applicable to the embodiment of the network side device, and the same technical effect can be achieved.
As shown in fig. 8, an embodiment of the present invention further provides a network-side device 80, which includes a processor 81, a transceiver 82, a memory 83, and a program stored in the memory 83 and operable on the processor 81; the transceiver 82 is connected to the processor 81 and the memory 83 through a bus interface, wherein the processor 81 is configured to read a program in the memory and execute the following processes:
periodically broadcasting system information to the terminals via the transceiver 82;
the system information comprises indication information of priority corresponding to the first service.
It should be noted that in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 81 and various circuits represented by memory 83 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 82 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 81 is responsible for managing the bus architecture and general processing, and the memory 83 may store data used by the processor 81 in performing operations.
Specifically, the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
The network side device may be a Base Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station or an Access point, or a Base Station ng-NB (next Generation Node B) in a future 5G network, a Central Unit (CU), a distributed control Unit (distributed Unit, DU), and the like, which is not limited herein.
The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information sending method applied to the network-side device.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (19)
1. A resident cell determining method is applied to a terminal and is characterized by comprising the following steps:
acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
and determining the resident cell of the terminal according to the indication information.
2. The method of claim 1, wherein the indication information indicates at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
3. The method for determining the camped cell according to claim 1, wherein the indication information indicates: when the target cell indicates the cell selection or reselection priority of the terminal performing the first service or the cell selection or reselection priority of the target cell for the terminal performing the first service, determining the cell where the terminal resides according to the indication information includes:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
4. The method of claim 1, wherein when the indication information indicates a service support level of a target cell for a first service, the determining the terminal-camped cell according to the indication information comprises:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
5. The method of claim 1, wherein when the indication information indicates a service support level of a target cell for a first service, the determining the terminal-camped cell according to the indication information comprises:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
acquiring scheduling information of the system information of the candidate cell and a service support level for a first service;
the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell;
and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
6. The method for determining the camped cell according to claim 1, wherein the indication information indicates: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, after the system information periodically broadcasted by the network side device is acquired, the method further includes:
the terminal performing the second service measures the signal quality of the cell;
determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second traffic is different from the first traffic.
7. An information sending method is applied to a network side device, and is characterized by comprising the following steps:
periodically broadcasting system information to a terminal;
the system information comprises indication information of priority corresponding to the first service.
8. The method according to claim 7, wherein the indication information is used to indicate at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
9. A terminal, comprising: a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
acquiring system information periodically broadcast by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
and determining the resident cell of the terminal according to the indication information.
10. The terminal according to claim 9, wherein the indication information is used for indicating at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
11. The terminal according to claim 9, wherein the indication information is used to indicate: when the target cell indicates the cell selection or reselection priority of the terminal performing the first service or the cell selection or reselection priority of the target cell with respect to the terminal performing the first service, the processor executes the program for determining the terminal residing cell according to the indication information, and implements the following steps:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the priority corresponding to the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the highest priority as the resident cell.
12. The terminal of claim 9, wherein when the indication information indicates a service support level of the target cell for the first service, the processor executes the program for determining the terminal-camped cell according to the indication information to implement the following steps:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
determining the service level supported by the candidate cell according to the indication information aiming at the candidate cell;
and determining the candidate cell with the service level supporting the configuration of the first service as a resident cell.
13. The terminal of claim 9, wherein when the indication information indicates a service support level of the target cell for the first service, the processor executes the program for determining the terminal-camped cell according to the indication information to implement the following steps:
a terminal performing a first service measures the signal quality of each cell of network side equipment to determine a candidate cell;
acquiring scheduling information of the system information of the candidate cell and a service support level for a first service;
the scheduling information is indicated as a candidate cell of the first service, and the candidate cell is determined as a first cell;
and determining the first cell with the service level supporting the configuration of the first service in the first cell as a resident cell.
14. The terminal according to claim 9, wherein the indication information is used to indicate: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indicating information of the target cell for cell selection or reselection of the terminal performing the first service, or the service support level of the target cell for the first service, the processor further implements the following steps when executing the program:
the terminal performing the second service measures the signal quality of the cell;
determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second traffic is different from the first traffic.
15. A network-side device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor implements the following steps when executing the program:
periodically broadcasting system information to a terminal through a transceiver;
the system information comprises indication information of priority corresponding to the first service.
16. The network-side device of claim 15, wherein the indication information is configured to indicate at least one of the following:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell indicates the cell selection or reselection priority of the terminal performing the first service;
a traffic support level of the target cell for the first traffic.
17. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the camping cell determining method according to any one of claims 1 to 6 or the information transmitting method according to any one of claims 7 to 8.
18. A terminal, comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring system information periodically broadcasted by network side equipment, and the system information comprises indication information of priority corresponding to a first service;
and the first determining module is used for determining the cell where the terminal resides according to the indication information.
19. A network-side device, comprising:
the broadcasting module is used for periodically broadcasting the system information to the terminal;
the system information comprises indication information of priority corresponding to the first service.
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