CN112788708B - Resident cell determining and information sending method, terminal and network equipment - Google Patents
Resident cell determining and information sending method, terminal and network equipment Download PDFInfo
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- CN112788708B CN112788708B CN201911076023.XA CN201911076023A CN112788708B CN 112788708 B CN112788708 B CN 112788708B CN 201911076023 A CN201911076023 A CN 201911076023A CN 112788708 B CN112788708 B CN 112788708B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000004590 computer program Methods 0.000 claims description 7
- 101150096310 SIB1 gene Proteins 0.000 description 16
- 238000005259 measurement Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
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Classifications
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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
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Abstract
The invention provides a residence community 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 the terminal and comprises the following steps: acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service; and determining the residence 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 periodically broadcasted system information, 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 for determining a camping cell, an information sending method, a terminal, and a network side device.
Background
The information exchange technology of the vehicle to the outside (vehicle to everything, V2X) can sense the surrounding condition of the vehicle in real time and share road information and perform early warning in time by means of wireless communication among the vehicle-to-vehicle, vehicle-to-road side infrastructure and vehicle-to-road people, and becomes a research hot spot for solving the road safety problem in various countries in the world at present.
In the existing long term evolution (Long Term Evolution, LTE) V2X technology (Rel-14 LTE V2X technology), broadcast communications over a PC5 interface (also called a through link, described in terms of protocol as Sidelink) for transmitting data between a User Equipment (UE, also called a terminal) and a UE can already support basic road security based traffic transmission.
With further development of internet of vehicles technology, NR V2X is further introduced in a fifth generation (5 g) New access network system (New RAT, NR) system. Compared with LTE V2X, the NR V2X at the present stage has changed the acquisition mode of the system information, introduced the request (on demand) mode, namely the base station does not make periodic broadcast to some system information, only provide the corresponding system information based on the terminal request; this approach saves resources occupied by the broadcast, but also results in the UE being unable to make a selection according to the broadcast information acquired in the on demand manner during cell selection/reselection. For example: it is clear in NR V2X that a cell that only provides anchor point (anchor) carrier information is not a high priority cell for a UE supporting V2X services. But the anchor carrier information of V2X is part of the corresponding broadcast system information of V2X, and the system information may be acquired in an on demand manner. The UE can acquire V2X system information only after camping on one cell by sending a request to the base station. This causes a problem that the UE erroneously regards a cell providing only the anchor carrier information as a high priority cell when performing cell selection/reselection, because the UE cannot distinguish between a cell providing only the anchor carrier information and a cell providing V2X configuration information before selecting a 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 are used for solving the problem that in the prior art, a UE cannot distinguish cells which only provide Anchor carrier information from cells which provide V2X configuration information before selecting the cells, and the UE uses the cells which only provide Anchor carrier information as high-priority cells in error when selecting/reselecting the cells, so that inaccuracy of cell selection/reselection is caused.
In order to solve the above technical problems, an embodiment of the present invention provides a method for determining a camping cell, which is applied to a terminal, and includes:
acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
And determining the residence 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
Optionally, the indication information is used for indicating: when the priority of the target cell for cell selection or reselection of the terminal performing the first service or the priority of the target cell for cell selection or reselection of the terminal performing the first service is indicated by the priority, determining that the terminal resides in the cell according to the indication information, including:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 for indicating: and when the target cell supports the service support level of the first service, determining the residence cell of the terminal according to the indication information, wherein the method comprises the following steps:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Determining the service level supported by the candidate cell according to the indication information of the candidate cell;
and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used for indicating: and when the target cell supports the service support level of the first service, determining the residence cell of the terminal according to the indication information, wherein the method comprises the following steps:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Acquiring scheduling information of system information of the candidate cell and service support level of a first service;
indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell;
And determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
Optionally, the indication information is used for indicating: when the priority of the target cell for cell selection or reselection of the terminal performing the first service, the priority level indication 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 obtained, the method further includes:
the terminal for carrying out 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 service is different from the first service.
The embodiment of the invention also provides an information sending method which is applied to the network side equipment and comprises the following steps:
Periodically broadcasting system information to a terminal;
the system information comprises priority indication information 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
The embodiment of the invention also provides a terminal, which comprises: a memory, a processor, and a program stored on the memory and executable on the processor; the processor, when executing the program, performs the steps of:
acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
And determining the residence 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
Optionally, the indication information is used for indicating: when the priority of the target cell for cell selection or reselection of the terminal performing the first service or the priority indication information of the target cell for cell selection or reselection of the terminal performing the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the method comprises the following steps:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 for indicating: when the target cell supports the service support level of the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the following steps are realized:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Determining the service level supported by the candidate cell according to the indication information of the candidate cell;
and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used for indicating: when the target cell supports the service support level of the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the following steps are realized:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Acquiring scheduling information of system information of the candidate cell and service support level of a first service;
indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell;
And determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
Optionally, the indication information is used for indicating: the processor further implements the following steps when executing the program, where the priority of the cell selection or reselection of the target cell to the terminal performing the first service, the priority level indication information of the cell selection or reselection of the target cell to the terminal performing the first service, or the service support level of the target cell to the first service:
the terminal for carrying out 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 service is different from the first service.
The embodiment of the invention also provides a network side device, which comprises: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor, when executing the program, performs the steps of:
periodically broadcasting system information to the terminal through the transceiver;
the system information comprises priority indication information 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-mentioned camping cell determination method or the above-mentioned information transmission method.
The embodiment of the invention also provides a terminal, which comprises:
An acquisition module for acquiring the system information periodically broadcasted by the network side equipment, the system information comprises indication information of priority corresponding to the first service;
And the first determining module is used for determining the residence cell of the terminal according to the indication information.
The embodiment of the invention also provides a network side device, which comprises:
the broadcasting module is used for periodically broadcasting system information to the terminal;
the system information comprises priority indication information corresponding to the first service.
The beneficial effects of the invention are as follows:
according to the scheme, the indication information of the priority corresponding to the first service is carried in the periodically broadcasted system information, 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 shows a schematic diagram of a network architecture for direct communication;
FIG. 2 is a diagram showing information transmission and reception in the 5G system;
fig. 3 is a flow chart of a method for determining a camping cell according to an embodiment of the present invention;
Fig. 4 is a schematic flow chart of an information sending method according to an embodiment of the present invention;
FIG. 5 shows a schematic block diagram of a terminal according to an embodiment of the present invention;
fig. 6 shows a structural diagram of a terminal according to an embodiment of the present invention;
Fig. 7 is a schematic block diagram of a network side device according to an embodiment of the present invention;
Fig. 8 is a diagram showing a configuration of a network side device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent.
Some concepts related to the embodiments of the present invention are first described as follows.
The devices being in close proximity to each other and allowing direct communication between the devices to be performed directly. For ease of description, the direct communication link between devices is defined as Sidelink link, and its corresponding wireless interface is referred to as a direct communication interface (also referred to as Sidelink interface or PC5 interface); the cellular communication link between the network and the direct communication device is called uulink, its corresponding interface is called Uu interface, and the V2X communication scheme is shown in fig. 1.
The devices in direct communication can be all on-line or off-line, or part of the devices can be on-line and part of the devices are off-line. The device participating in direct communication in the network is located in the coverage of the communication carrier of the 3GPP base station, and the device participating in direct communication in the off-network is not located in the coverage of the communication carrier of the 3GPP base station.
Typical direct communication scenarios include the following three:
one-to-one communication (unicast) between direct communication terminals;
A device may send the same data (multicast) to all devices in a communication group at a time;
One device may send the same data (broadcast) to all nearby devices at a time (LTE systems only support broadcast).
Fig. 2 is a schematic diagram of system information sending and receiving in a 5G system, where a UE may receive system information sent by a 5G NR (New RAT) base station in a periodic broadcast manner, and the UE may also obtain, as needed, the system information sent by the 5G NR base station by using a request/response manner. Further, the periodically broadcasted system information (periodic broadcast SI) is typically the most necessary system information for the UE to camp on to and access to camping cells, such as all or part of the contents of the Master Information Block (MIB), system information block one (SIB 1) and system information block two (SIB 2); while on-demand system information (on-demand SI) is other system information, such as all or part of the content of SIB 3-SIB 20.
The invention provides a resident cell determining and information sending method, a terminal and network side equipment, aiming at the problem that in the prior art, a UE can not distinguish a cell which only provides Anchor carrier information from a cell which provides V2X configuration information before selecting the cell, and the UE uses the cell which only provides Anchor carrier information as a high priority cell in error when selecting/reselecting the cell, thereby causing inaccuracy of cell selection/reselection.
As shown in fig. 3, the method for determining a camping cell according to the embodiment of the present invention is applied to a terminal, and includes:
step 31, acquiring system information periodically broadcasted by network side equipment;
The system information includes indication information of priority corresponding to the first service; the first service may be any service performed by the terminal, for example, a V2X service.
Step 32, according to the indication information, determining the residence cell of the terminal;
The terminal performing the first service performs cell selection or reselection according to the indication information of the priority corresponding to the first service, and camps in the cell meeting the service requirement.
It should be noted that, in the embodiment of the present invention, the indication information is used to indicate at least one of the following:
A11, the priority of the target cell for cell selection or reselection of the terminal for performing the first service;
the target cell refers to one or several cells under the network side device.
A12, the target cell is to the cell selection or priority level indication information of reselecting of the terminal carrying on the first business;
A13, service support grade of the target cell for the first service.
Embodiments of the present invention are specifically described below in terms of indicating different contents from the point of view of the indication information, respectively.
1. The indication information is used for indicating the priority of the target cell for cell selection or reselection of the terminal performing the first service
It should be noted that, in this case, the specific implementation manner of step 32 is: the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 requirement of the terminal according to the S criterion, and then find the cell with the highest priority among the candidate cells as the resident cell of the terminal.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2. For the situation of cell reselection, the signal quality of the cell 4 where the terminal resides is reduced, cell reselection is required, at this time, the terminal performs V2X service, the cell which does not provide V2X information has a cell selection/reselection priority of 3 for V2X service, the cell which only provides V2X anchor carrier information has a cell selection/reselection priority of 2 for V2X service, the cell which provides V2X actual configuration information has a cell selection/reselection priority of 1 for V2X service, and when the terminal performs cell reselection, the terminal firstly measures the signal quality of each cell, and determines that cell 1, cell 2 and cell 3 are candidate cells through measurement; then the terminal reads SIB1 of cell 1, cell 2 and cell 3 respectively to obtain priority of cell reselection corresponding to V2X service; 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 procedure of the terminal is: the terminal for carrying out the second service measures the signal quality of the cell; directly determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second service is different from the first service, for example, in the 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 of the first service and the second service is merely an example, and the limitation is not limited to the V2X service and the non-V2X service mentioned in the embodiment of the present invention, and any other service form only satisfies the requirements of the first service and the second service, which falls within 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 the cell selection/reselection corresponding to the first service is not taken into consideration when performing the cell selection/reselection.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2. For the situation of cell reselection, the signal quality of the cell 4 where the terminal resides is reduced, cell reselection is required, at this time, the terminal performs V2X service, the cell which does not provide V2X information has a cell reselection priority of 3 for V2X service, the cell which only provides V2X anchor carrier information has a cell reselection priority of 2 for V2X service, the cell which provides V2X actual configuration information has a cell reselection priority of 1 for V2X service, and when performing cell reselection, the terminal performing non-V2X service measures the signal quality of each cell, and determines that cell 1, cell 2 and cell 3 are candidate cells through measurement; and then the terminal respectively reads SIB1 of the cell 1, the cell 2 and the cell 3, ignores the priority of the cell reselection corresponding to the V2X service, and selects the cell 3 with the highest received signal strength as the resident cell.
2. The indication information is used for indicating the priority level indication information of the target cell for cell selection or reselection of the terminal performing the first service
It should be noted that, in this case, the specific implementation manner of step 32 is: the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2 respectively; for the situation of cell reselection, the signal quality of the cell 4 where the terminal resides is reduced, cell reselection is needed, at this time, the terminal performs the V2X service, the cell which does not provide V2X information and the cell which only provides V2X anchor carrier information have low cell reselection priority for the V2X service, and the cell which provides V2X actual configuration information has high cell reselection priority for the V2X service; when the terminal reselects a cell, firstly measuring the signal quality of the cell, determining that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then respectively reading SIB1 of the cell 1, the cell 2 and the cell 3, acquiring priority level indication information of the cell reselection corresponding to the V2X service, and finally selecting the cell 2 with the high priority level indication information of the V2X cell reselection as a resident cell.
It should be further noted that, when the terminal performs the first service, the specific execution procedure of the terminal is: the terminal for carrying out the second service measures the signal quality of the cell; directly determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second service is different from the first service, for example, in the 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 instruction information of the cell selection/reselection corresponding to the first service is not taken into consideration when performing the cell selection/reselection.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2 respectively; for the situation of cell reselection, the signal quality of the cell 4 where the terminal resides is reduced, cell reselection is needed, at this time, the terminal performs non-2X service, the cell which does not provide V2X information and the cell which only provides V2X anchor carrier information have low cell selection/reselection priority for V2X service, and the cell which provides V2X actual configuration information has high cell selection/reselection priority for V2X service; when the terminal reselects the cell, firstly measuring the signal quality of the cell, determining that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then reading SIB1 of the cell 1, the cell 2 and the cell 3, ignoring the priority level indication information of the cell reselection corresponding to the V2X service, and finally selecting the cell 3 with the highest received signal strength as a resident cell by the terminal.
In the above two cases, when the terminal obtains a plurality of camping cells according to the above implementation, one cell may be selected for camping according to the implementation of the terminal, for example, one cell with the strongest signal may be selected for camping according to the signal strength, for example, whether the terminal camps in a certain cell or not, and the cell in which the terminal camps once is selected for camping.
3. 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, the specific implementation manner of step 32 may include one of the following:
The method comprises the steps that firstly, a terminal for performing a first service measures the signal quality of each cell of network side equipment and determines candidate cells; determining the service level supported by the candidate cell according to the indication information of the candidate cell; and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2 respectively; for the cell reselection scene, the signal quality of the cell 4 where the terminal resides is reduced, and cell reselection is required, wherein the terminal performs V2X service, the cell 3 which does not provide V2X information indicates that V2X is not supported in SIB1, the cell 1 which only provides V2X anchor carrier information indicates that only anchor information is provided in SIB1, and the cell 2 which provides V2X actual configuration information indicates that V2X configuration is provided in SIB 1; when the terminal reselects the cell, firstly measuring the signal quality of each cell, determining that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then reading SIB1 of the cell 1, the cell 2 and the cell 3, obtaining the support grade of the cell to the V2X service, and finally using the cell 2 supporting the V2X configuration as a resident cell by the terminal.
A second mode, a terminal for carrying out a first service measures the signal quality of each cell of the network side equipment and determines candidate cells; acquiring scheduling information of system information of the candidate cell and service support level of a first service; indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell; and determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
In this case, the scheduling information corresponding to the selected cell is indicated as the cell performing the first service in the candidate cells, and then the cell with the service class supporting the configuration of the first service is determined as the camping cell in the cells.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2 respectively; for the cell reselection scene, the signal quality of the cell 4 where the terminal resides is reduced, cell reselection is needed, at this time, the terminal performs V2X service, and cell 3 which does not provide V2X information does not have any V2X related indication information in SIB1, SIB1 does not schedule SIB related to V2X, cell 1 which only provides V2X anchor carrier information comprises scheduling of V2X system information in SIB1 and indication cell support anchor carrier configuration, and cell 2 which provides V2X actual configuration information comprises V2X system information in SIB 1; when the terminal reselects a cell, firstly measuring the signal quality of the cell, determining that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then respectively reading SIB1 of the cell 1, the cell 2 and the cell 3 by the terminal, acquiring system information scheduling information of the cell and information of whether only V2X anchor carrier configuration is supported, firstly selecting the cell 1 and the cell 2 containing V2X SIB according to whether the scheduling information of the V2X related SIB is contained in the SIB1 by the terminal, then indicating the information of only supporting the V2X anchor carrier configuration according to the cell 1 in the SIB1, and finally selecting the cell 2 supporting the V2X configuration as a resident cell.
It should be further noted that, when the terminal performs the first service, the specific execution procedure of the terminal is: the terminal for carrying out the second service measures the signal quality of the cell; directly determining a cell with the strongest signal quality as a resident cell of the terminal;
wherein the second service is different from the first service, for example, in the 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 in performing cell selection/reselection.
For example, the case where cell 1 provides only V2X anchor carrier information, cell 2 provides V2X configuration information, and cell 3 does not provide V2X information will be described. The 3 cells meet the S criterion for the terminal, and the signal intensity received by the terminal is from strong to weak, namely cell 3, cell 1 and cell 2 respectively; for the cell reselection scene, the signal quality of the cell 4 where the terminal resides is reduced, and cell reselection is needed, at this time, the terminal performs non-V2X service, and the cell 3 which does not provide V2X information indicates that V2X is not supported in SIB1, the cell 1 which only provides V2X anchor carrier information indicates that only anchor information is provided in SIB1, and the cell 2 which provides V2X actual configuration information indicates that V2X configuration is provided in SIB 1; when the terminal reselects the cell, firstly measuring the signal quality of each cell, determining that the cell 1, the cell 2 and the cell 3 become candidate cells through measurement, then respectively reading SIB1 of the cell 1, the cell 2 and the cell 3, ignoring the support grade of the cell to the V2X service, and selecting the cell 3 with the highest received signal strength as a resident cell.
In this case, when the terminal obtains a plurality of camping cells according to the above implementation, one cell may be selected to camp according to the implementation of the terminal, for example, a cell with the highest priority may be selected to camp according to the priority corresponding to the cell, and if the priorities are the same, a cell with the strongest signal may be further selected to camp according to the signal strength, for example, depending on whether the terminal camps in a certain cell, the cell in which the terminal camps once is selected to camp.
It should be noted that the present invention mainly aims at the situation that priority differentiation is needed during cell selection/reselection, and specific information content is broadcast in the system information acquired in the on demand mode, and provides an indication information carrying the priority corresponding to the specific service in the periodically broadcast system information, so that when the terminal performs cell selection/reselection, the terminal does not need to acquire the content of the on demand system information, and the priority of the cell can be clarified, and the determination of the resident cell can be accurately performed, thereby improving the accuracy of cell selection/reselection.
As shown in fig. 4, the information sending method of the embodiment of the present invention is applied to a network side device, and includes:
step 41, periodically broadcasting system information to the terminal;
the system information comprises priority indication information 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
It should be noted that, in the above embodiments, all descriptions about the network side device are applicable to the embodiment of the information sending method, and the same technical effects as those of the embodiment 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 broadcasted by a network side device, where the system information includes indication information of a priority corresponding to a first service;
And the first determining module 52 is configured to determine, according to the indication information, a cell in which 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
Optionally, the indication information is used for indicating: when the priority of the cell selection or reselection of the target cell to the terminal performing the first service or the priority level indication information of the cell selection or reselection of the target cell to the terminal performing the first service, the first determining module 52 includes:
the first determining unit is used for measuring the signal quality of each cell of the network side equipment by the terminal for performing the first service and determining candidate cells;
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 camping cell.
Optionally, the indication information is used for indicating: when the target cell supports the service support level for the first service, the first determining module 52 includes:
a fourth determining unit, configured to measure signal quality of each cell of the network side device by the terminal performing the first service, and determine a candidate cell;
a fifth determining unit, configured to determine a service level supported by the candidate cell according to the indication information for the candidate cell;
and a sixth determining unit, configured to determine that the service class is a candidate cell supporting the configuration of the first service as a camping cell.
Optionally, the indication information is used for indicating: when the target cell supports the service support level for the first service, the first determining module 52 includes:
a seventh determining unit, configured to measure signal quality of each cell of the network side device by the terminal performing the first service, 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 indicate the scheduling information as a candidate cell of the first service, and determine the scheduling information as the first cell;
And a ninth determining unit, configured to determine that a service class in the first cell is a configured first cell supporting the first service, as a camping cell.
Optionally, the indication information is used for indicating: when the priority of the cell selection or reselection of the target cell to the terminal performing the first service, the priority level indication information of the cell selection or reselection of the target cell to the terminal performing the first service, or the service support level of the target cell to the first service, after the acquiring module 51 acquires the system information periodically broadcasted 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 carrying out the second service;
a second determining module, configured to determine a cell with the strongest signal quality as a camping cell of the terminal;
wherein the second service is different from the first service.
It should be noted that, the terminal embodiment is a terminal corresponding to the method embodiment one by one, and all the implementation manners in the method embodiment are applicable to the terminal embodiment, so that the same technical effects can be achieved.
As shown in fig. 6, the embodiment of the present invention further provides a terminal 60, including a processor 61, a transceiver 62, a memory 63, and a program stored on the memory 63 and executable on the processor 61; the transceiver 62 is connected to the processor 61 and the memory 63 through a bus interface, where the processor 61 is configured to read a program in the memory, and perform the following procedures:
acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises indication information of priority corresponding to a first service;
And determining the residence 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, and in particular, one or more processors represented by processor 61 and various circuits of the memory represented by memory 63, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. 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. The user interface 64 may also be an interface capable of interfacing with an inscribed desired device for different senders, 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
Optionally, the indication information is used for indicating: when the priority of the target cell for cell selection or reselection of the terminal performing the first service or the priority indication information of the target cell for cell selection or reselection of the terminal performing the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the method comprises the following steps:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 for indicating: when the target cell supports the service support level of the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the following steps are realized:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Determining the service level supported by the candidate cell according to the indication information of the candidate cell;
and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
Optionally, the indication information is used for indicating: when the target cell supports the service support level of the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the following steps are realized:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Acquiring scheduling information of system information of the candidate cell and service support level of a first service;
indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell;
And determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
Optionally, the indication information is used for indicating: the processor further implements the following steps when executing the program, where the priority of the cell selection or reselection of the target cell to the terminal performing the first service, the priority level indication information of the cell selection or reselection of the target cell to the terminal performing the first service, or the service support level of the target cell to the first service:
the terminal for carrying out 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 service is different from the first service.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of a camping cell determination method 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 for periodically broadcasting system information to the terminals;
the system information comprises priority indication information 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
It should be noted that, the network side device embodiment is a network side device corresponding to the method embodiment one by one, and all the implementation manners in the method embodiment are applicable to the network side device embodiment, so that the same technical effects can be achieved.
As shown in fig. 8, an embodiment of the present invention further provides a network side device 80, including a processor 81, a transceiver 82, a memory 83, and a program stored in the memory 83 and executable on the processor 81; the transceiver 82 is connected to the processor 81 and the memory 83 through a bus interface, where the processor 81 is configured to read a program in the memory, and perform the following procedures:
periodically broadcasting system information to terminals via the transceiver 82;
the system information comprises priority indication information 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, and in particular, one or more processors represented by processor 81 and various circuits of memory represented by memory 83, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described 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 is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
The network side device may be a base station (Base Transceiver Station, BTS) in global mobile communication (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a base station (NodeB, NB) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an access point, or a base station ng-NB (Next Generation Node B) or a Central Unit (CU) or a Distributed Unit (DU) in a future 5G network, which is not limited herein.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, realizes the steps of the information transmission method applied to the network side device.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.
Claims (12)
1. A method for determining a camping cell, applied to a terminal, comprising:
Acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises priority indication information corresponding to a first service by a target cell;
according to the indication information, determining a residence cell of the terminal;
Wherein the first service is a direct communication interface service;
When the indication information is used for indicating the service support level of the target cell for the first service, the determining the terminal resident cell according to the indication information includes:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Acquiring scheduling information of system information of the candidate cell and service support level of a first service;
indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell;
And determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
2. The camping cell determination method of claim 1, wherein the indication information is used to indicate at least one of:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
3. The camping cell determination method according to claim 1, 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 or the priority of the target cell for cell selection or reselection of the terminal performing the first service is indicated by the priority, determining that the terminal resides in the cell according to the indication information, including:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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 for determining a camping cell according to claim 1, wherein when the indication information is used for indicating a service support level of the target cell for the first service, the determining a camping cell of the terminal according to the indication information comprises:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Determining the service level supported by the candidate cell according to the indication information of the candidate cell;
and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
5. The camping cell determination method according to claim 1, 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 indication 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 obtained, the method further includes:
the terminal for carrying out 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 service is different from the first service.
6. A terminal, comprising: a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor, when executing the program, performs the steps of:
Acquiring system information periodically broadcasted by network side equipment, wherein the system information comprises priority indication information corresponding to a first service by a target cell;
according to the indication information, determining a residence cell of the terminal;
Wherein the first service is a direct communication interface service;
When the indication information is used for indicating the service support level of the target cell for the first service, the processor executes the program for determining the cell where the terminal resides according to the indication information, and the following steps are implemented:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Acquiring scheduling information of system information of the candidate cell and service support level of a first service;
indicating the scheduling information as a candidate cell of the first service, and determining the candidate cell as the first cell;
And determining a first cell with the service grade being the configuration supporting the first service in the first cell as a resident cell.
7. The terminal of claim 6, wherein the indication information is used to indicate at least one of:
the priority of the target cell for cell selection or reselection of the terminal performing the first service;
the target cell is to the cell selection or priority level indication information of reselecting of the terminal station of the first business;
service support level of the target cell for the first service.
8. The terminal according to claim 6, 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 or the priority indication information of the target cell for cell selection or reselection of the terminal performing the first service, the processor executes the program for determining the resident cell of the terminal according to the indication information, and the method comprises the following steps:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
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.
9. The terminal according to claim 6, wherein when the indication information is used to indicate a service support level of the target cell for the first service, the processor executes the program for determining that the terminal resides in the cell according to the indication information, and the following steps are implemented:
the terminal for carrying out the first service measures the signal quality of each cell of the network side equipment and determines candidate cells;
Determining the service level supported by the candidate cell according to the indication information of the candidate cell;
and determining the service class as a candidate cell supporting the configuration of the first service as a resident cell.
10. The terminal according to claim 6, wherein the indication information is used to indicate: the processor further implements the following steps when executing the program, where the priority of the cell selection or reselection of the target cell to the terminal performing the first service, the priority level indication information of the cell selection or reselection of the target cell to the terminal performing the first service, or the service support level of the target cell to the first service:
the terminal for carrying out 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 service is different from the first service.
11. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the camping cell determination method according to any of claims 1 to 5.
12. A terminal, comprising:
the system information comprises indication information of priority corresponding to the first service by the target cell;
the first determining module is used for determining a terminal resident cell according to the indication information;
Wherein the first service is a direct communication interface service;
wherein, the indication information is used for indicating: when the target cell supports the service support level of the first service, the first determining module includes:
a seventh determining unit, configured to measure signal quality of each cell of the network side device by the terminal performing the first service, 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 indicate the scheduling information as a candidate cell of the first service, and determine the scheduling information as the first cell;
And a ninth determining unit, configured to determine that a service class in the first cell is a configured first cell supporting the first service, as a camping cell.
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| US9655039B2 (en) * | 2015-06-26 | 2017-05-16 | Qualcomm Incorporated | Dynamic cell reselection to improve device-to-device communications |
| WO2018027591A1 (en) * | 2016-08-09 | 2018-02-15 | 华为技术有限公司 | Method, device, and system for v2x message transmission |
| WO2018195825A1 (en) * | 2017-04-26 | 2018-11-01 | 北京小米移动软件有限公司 | Cell selection or reselection method, device and system |
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| CN105745962A (en) * | 2013-10-31 | 2016-07-06 | Lg电子株式会社 | Method for reselecting cell performed by terminal in wireless communication system and terminal using the method |
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