CN109756914B - Neighbor relation management method, network side equipment and terminal - Google Patents
Neighbor relation management method, network side equipment and terminal Download PDFInfo
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Abstract
The invention provides a neighbor relation management method, network side equipment and a terminal, and belongs to the technical field of wireless. The neighbor cell relation management method applied to the network side equipment comprises the following steps: receiving a cell measurement result reported by a terminal; when the cell is determined to be a newly found cell according to the measurement result, indicating the terminal to acquire the identification information of the cell; and receiving the identification information reported by the terminal, and storing the identification information into a neighbor relation table. The technical scheme of the invention can realize the management of the adjacent area relation between the unmanned aerial vehicle terminal and the ground terminal.
Description
Technical Field
The present invention relates to the field of wireless technologies, and in particular, to a method for managing a neighboring cell relationship, a network side device, and a terminal.
Background
In 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network ) plenum #75 meeting, it is determined that the first version of the 5G NR (New Radio, New air interface) system should support an Automatic Neighbor Relation (ANR) function for automatically discovering and configuring a neighbor. Taking fig. 1 as an example, LTE (Long Term Evolution ) ANR mainly includes the following steps:
1. the UE (User Equipment) measures a signal of the Cell B, and reports a measurement result to the current serving base station, where the measurement result includes PCI (Physical Cell Identifier) information of the Cell B.
2. If the serving eNB of the UE finds that the Cell B is newly found, the serving eNB of the UE may instruct the UE to obtain an ECGI (E-UTRAN Cell Global Identifier ), a TAC (Tracking Area Code), and a PLMN (Public Land Mobile Network) ID (identification) of the new Cell B, and report the identifiers to the eNB.
3. The eNB decides to add this cell to the following neighbor list and establishes an X2 interface with the cell if needed.
It should be noted that, although the new neighbor relation is discovered through measurement of the terminal, the neighbor list in the ANR is per cell, not per UE; also, ANR is substantially invariant for the conventional scenario, i.e., if all UEs are ground terminals.
At present, unmanned aerial vehicle's application is more and more extensive. As shown in fig. 2, when the network of the ground wireless communication system needs to simultaneously cover the aerial drone terminal, the main lobe direction of the base station antenna covers the ground terminal, and the side lobe covers the aerial drone terminal. Compared with a ground terminal, the unmanned aerial vehicle terminal in the air has more cells and changes in network topology structure.
As shown in fig. 3, the network topology of the current wireless cellular network is as follows, and cell 1 is the strongest cell for the terrestrial terminal. However, for an aerial unmanned aerial vehicle terminal under the service of a ground base station, the network topology seen by the terminal changes, and as the flying height of the unmanned aerial vehicle increases, the strongest cell seen by the unmanned aerial vehicle terminal may be cell 2 or even cell 3.
So even if be in same geographical position, unmanned aerial vehicle user will be different with ordinary ground user's service cell, and the unmanned aerial vehicle of different flying height simultaneously also can be different for its cell of service. If the current ANR mechanism is used, some situations may occur that neighbor cells are not actually usable.
Disclosure of Invention
The invention aims to provide a neighbor relation management method, network side equipment and a terminal, which can realize the management of the neighbor relation between an unmanned aerial vehicle terminal and a ground terminal.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a method for managing a neighboring cell relationship is provided, which is applied to a network side device, and includes:
receiving a cell measurement result reported by a terminal;
when the cell is determined to be a newly found cell according to the measurement result, indicating the terminal to acquire the identification information of the cell;
and receiving the identification information reported by the terminal, and storing the identification information into a neighbor relation table.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
The embodiment of the invention also provides a method for managing the adjacent cell relation, which is applied to a terminal and comprises the following steps:
when a signal of a cell is measured, reporting a measurement result of the cell to network side equipment;
receiving an indication message issued by the network side equipment, wherein the indication message indicates the terminal to acquire the identification information of the cell;
and acquiring the identification information of the cell and reporting the identification information to the network side equipment.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
Further, the acquiring the identification information of the cell includes:
acquiring the identification information of the cell by listening to the system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the transceiver is used for receiving the cell measurement result reported by the terminal;
when the processor determines that the cell is a newly found cell according to the measurement result, the processor instructs the terminal to acquire the identification information of the cell;
the transceiver is also used for receiving the identification information reported by the terminal;
the processor is further configured to store the identification information in a neighbor relation table.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
The embodiment of the invention also provides a terminal, which comprises a processor and a transceiver,
the transceiver is used for reporting a measurement result of a cell to network side equipment when measuring a signal of the cell, and receiving an indication message issued by the network side equipment, wherein the indication message indicates the terminal to acquire identification information of the cell;
the processor is configured to acquire identification information of the cell;
the transceiver is further configured to report the identification information to the network side device.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
Further, the processor is specifically configured to acquire identification information of the cell by listening to a system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the neighbor relation management method as described above when executing the program.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the neighbor relation management method as described above when executing the program.
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 in the neighboring cell relation management method described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, when the network side device determines that the cell is a newly found cell, the network side device indicates the terminal to acquire the identification information of the cell, and receives the identification information reported by the terminal, and stores the identification information into the neighbor relation table.
Drawings
FIG. 1 is a flow diagram of LTE ANR;
fig. 2 is a schematic diagram of an unmanned aerial vehicle terminal and a ground wireless communication system;
FIG. 3 is a schematic diagram of a network topology of a wireless cellular network;
FIG. 4 is a flowchart illustrating a method for managing a neighboring cell relation according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for managing a neighboring cell relation according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Embodiments of the present invention provide a method, a network side device, and a terminal for managing a neighboring cell relationship, which can implement management of a neighboring cell relationship between an unmanned aerial vehicle terminal and a ground terminal.
An embodiment of the present invention provides a method for managing a neighboring cell relationship, which is applied to a network side device, and as shown in fig. 4, the method includes:
step 101: receiving a cell measurement result reported by a terminal;
step 102: when the cell is determined to be a newly found cell according to the measurement result, indicating the terminal to acquire the identification information of the cell;
step 103: and receiving the identification information reported by the terminal, and storing the identification information into a neighbor relation table.
In this embodiment, when determining that the cell is a newly discovered cell, the network side device instructs the terminal to acquire the identification information of the cell, receives the identification information reported by the terminal, and stores the identification information in the neighbor relation table, because the service cells of the unmanned aerial vehicle terminal and the common ground terminal are different even if the network side device is located in the same geographical position, and meanwhile, the unmanned aerial vehicle terminals with different flying heights are different for the cells serving the unmanned aerial vehicle terminals, the neighbor relation of the ground terminal and the neighbor relation of the unmanned aerial vehicle terminal can be distinguished through the identification information of the cell of the service terminal, and the identification distinction is performed, so that the mixed use of the neighbor information is avoided.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
An embodiment of the present invention further provides a neighboring cell relation management method, applied to a terminal, as shown in fig. 5, including:
step 201: when a signal of a cell is measured, reporting a measurement result of the cell to network side equipment;
step 202: receiving an indication message issued by the network side equipment, wherein the indication message indicates the terminal to acquire the identification information of the cell;
step 203: and acquiring the identification information of the cell and reporting the identification information to the network side equipment.
In this embodiment, when determining that a cell is a newly found cell, a network side device instructs a terminal to acquire identification information of the cell, receives identification information reported by the terminal, and stores the identification information in a neighboring cell relation table.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
Further, the acquiring the identification information of the cell includes:
acquiring the identification information of the cell by listening to the system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
The method for managing a neighboring cell relation according to the embodiment of the present invention is described in detail below, and the method for managing a neighboring cell relation according to the embodiment specifically includes the following steps:
1. the UE measures a signal of the Cell B, and reports the measurement result to the current serving base station, where the measurement result includes PCI (Physical Cell Identifier) information of the Cell B or ID information of other characterizing cells newly defined by 5G. Additionally, if the terminal is an unmanned aerial vehicle terminal, the UE also needs to report the height information of the UE; the information may be an absolute height value or a relative height difference from the current serving base station.
2. If the serving base station eNB or the gNB (5G NR newly defined base station) of the UE finds that the Cell B is newly found, the UE may be instructed to read the ECGI, TAC and PLMN ID (Public Land Mobile Network) of the new Cell B, and/or the ID (e.g. NR Cell Global ID) of the newly defined identified Cell in 5G.
3. The UE reads the information in the newly found cell, which may be obtained by listening to the system message of the cell or by an on-demand request, and reports the information to the current serving base station.
4. The current service base station decides to add the new cell into the neighboring cell relation of the current cell and stores the relevant information received in the above steps into the neighboring cell relation table. The neighbor relation table may be as follows:
the neighbor relation table may also be in the form of:
when the height of the terminal is 0-X meters, the corresponding adjacent area relation list is as follows:
when the height of the terminal is X-Y meters, the corresponding adjacent area relation list is as follows:
the embodiment of the present invention further provides a network side device, as shown in fig. 6, including a processor 31 and a transceiver 32,
the transceiver 32 is configured to receive a cell measurement result reported by a terminal;
when determining that the cell is a newly found cell according to the measurement result, the processor 31 instructs the terminal to acquire the identification information of the cell;
the transceiver 32 is further configured to receive identification information reported by the terminal;
the processor 31 is further configured to store the identification information in a neighbor relation table.
In this embodiment, when determining that the cell is a newly discovered cell, the network side device instructs the terminal to acquire the identification information of the cell, receives the identification information reported by the terminal, and stores the identification information in the neighbor relation table, because the service cells of the unmanned aerial vehicle terminal and the common ground terminal are different even if the network side device is located in the same geographical position, and meanwhile, the unmanned aerial vehicle terminals with different flying heights are different for the cells serving the unmanned aerial vehicle terminals, the neighbor relation of the ground terminal and the neighbor relation of the unmanned aerial vehicle terminal can be distinguished through the identification information of the cell of the service terminal, and the identification distinction is performed, so that the mixed use of the neighbor information is avoided.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the altitude information includes an absolute altitude value and/or a relative altitude difference between the terminal and the network-side device or a reference device.
Embodiments of the present invention also provide a terminal, as shown in fig. 7, including a processor 41 and a transceiver 42,
the transceiver 42 is configured to report a measurement result of a cell to a network side device when a signal of the cell is measured, and receive an indication message issued by the network side device, where the indication message indicates that the terminal acquires identification information of the cell;
the processor 41 is configured to obtain identification information of the cell;
the transceiver 42 is further configured to report the identification information to the network side device.
In this embodiment, when determining that a cell is a newly found cell, a network side device indicates a terminal to obtain identification information of the cell, and receives identification information reported by the terminal, and stores the identification information in a neighboring cell relation table.
Further, the measurement result includes ID information characterizing a cell defined in the PCI or 5G network of the cell;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
Further, the height information includes an absolute height value and/or a relative height difference between the terminal and the network-side device or a reference device.
Further, the processor 41 is specifically configured to acquire the identification information of the cell by listening to the system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
Further, the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in the 5G network.
The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the above-described neighbor relation management method when executing the program.
The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor implements the neighbor relation management method as described above when executing the program.
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 in the neighboring cell relation management method described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (21)
1. A neighbor relation management method is applied to network side equipment and is characterized by comprising the following steps:
receiving a cell measurement result reported by a terminal;
when the cell is determined to be a newly found cell according to the measurement result, indicating the terminal to acquire the identification information of the cell;
receiving the identification information reported by the terminal, and storing the identification information into a neighboring relation table;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
2. The method according to claim 1, wherein the identification information includes ECGI, TAC and PLMN ID and/or ID of the cell defined in 5G network.
3. The method of claim 1, wherein the measurement result comprises ID information characterizing a cell defined in a PCI or 5G network of the cell.
4. The neighbor relation management method according to claim 1, wherein the altitude information includes an absolute altitude value and/or a relative altitude difference between the terminal and the network-side device or a reference device.
5. A neighbor relation management method is applied to a terminal and is characterized by comprising the following steps:
when a signal of a cell is measured, reporting a measurement result of the cell to network side equipment;
receiving an indication message issued by the network side equipment, wherein the indication message indicates the terminal to acquire the identification information of the cell;
acquiring identification information of the cell and reporting the identification information to the network side equipment;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
6. The method of claim 5, wherein the measurement result comprises ID information of a characterized cell defined in a PCI or 5G network of the cell.
7. The neighbor relation management method according to claim 5, wherein the altitude information includes an absolute altitude value and/or a relative altitude difference between the terminal and the network-side device or a reference device.
8. The method of claim 5, wherein the obtaining the identification information of the cell comprises:
acquiring the identification information of the cell by listening to the system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
9. The method according to claim 5, wherein the identification information includes an ECGI, a TAC, and a PLMN ID and/or an ID of the cell defined in a 5G network.
10. A network side device, comprising a processor and a transceiver,
the transceiver is used for receiving the cell measurement result reported by the terminal;
when the processor determines that the cell is a newly found cell according to the measurement result, the processor instructs the terminal to acquire the identification information of the cell;
the transceiver is also used for receiving the identification information reported by the terminal;
the processor is further configured to store the identification information in a neighbor relation table;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
11. The network device of claim 10, wherein the identification information comprises an ECGI, a TAC, and a PLMN ID and/or an ID of the cell defined in a 5G network.
12. The network-side device of claim 10, wherein the measurement result comprises ID information characterizing a cell defined in a PCI or 5G network of the cell.
13. The network-side device of claim 10, wherein the altitude information comprises an absolute altitude value and/or a relative altitude difference between the terminal and the network-side device or a reference device.
14. A terminal, comprising a processor and a transceiver,
the transceiver is used for reporting a measurement result of a cell to network side equipment when measuring a signal of the cell, and receiving an indication message issued by the network side equipment, wherein the indication message indicates the terminal to acquire identification information of the cell;
the processor is configured to acquire identification information of the cell;
the transceiver is further configured to report the identification information to the network side device;
when the terminal is an unmanned aerial vehicle terminal, the measurement result further comprises height information of the terminal.
15. The terminal of claim 14, wherein the measurement result comprises ID information characterizing the cell defined in the PCI or 5G network of the cell.
16. The terminal according to claim 14, wherein the altitude information comprises an absolute altitude value and/or a relative altitude difference between the terminal and the network-side device or a reference device.
17. The terminal of claim 14,
the processor is specifically configured to acquire identification information of the cell by listening to a system message of the cell; or
And acquiring the identification information of the cell in an on-demand request mode.
18. The terminal according to claim 14, wherein the identification information comprises ECGI, TAC and PLMN ID and/or ID of the cell defined in 5G network.
19. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor, when executing the program, implements the neighbor relation management method according to any of claims 1-4.
20. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; wherein the processor, when executing the program, implements the neighbor relation management method according to any of claims 5-9.
21. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the neighborhood relation management method according to any one of claims 1 to 4 or when being executed by a processor, carries out the steps in the neighborhood relation management method according to any one of claims 5 to 9.
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