CN110324822B - Cell selection method, network side equipment and user terminal - Google Patents
Cell selection method, network side equipment and user terminal Download PDFInfo
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- CN110324822B CN110324822B CN201810271242.2A CN201810271242A CN110324822B CN 110324822 B CN110324822 B CN 110324822B CN 201810271242 A CN201810271242 A CN 201810271242A CN 110324822 B CN110324822 B CN 110324822B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a cell selection method, network side equipment and a user terminal, and belongs to the technical field of wireless communication. The method for selecting the cell applied to the network side equipment comprises the following steps: sending a system broadcast message carrying an NSA terminal reading field to a user terminal, wherein the NSA terminal reading field comprises the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell. The technical scheme of the invention can enable the user terminal to reside in certain specific frequency point cells according to the requirements so as to reduce the upgrading and reconstruction of the network.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a cell selection method, a network side device, and a user terminal.
Background
Two networking solutions are defined in the 5G standardization, namely: SA (standard alone) and NSA (Non-standard alone). The two networking technical schemes are mainly different in that whether the 5G wireless network can independently provide communication services for 5G users: as shown in fig. 1, the independent networking solution does not need to use a 4G network, and a 5G network can independently provide core network capabilities such as user access and residence; as shown in fig. 2, the dependent networking solution needs to provide core network capabilities such as access and residence for the user by means of a 4G network.
In the NSA architecture defined in the current protocol, a control plane anchor point of a UE (User Equipment) is on LTE (Long Term Evolution), so the UE needs to maintain connection with an LTE network, and the rules for NSA still need to be set by the LTE network. The current selection of the access frequency point of the LTE mainly depends on the broadcast message of the LTE. The broadcast messages of LTE include the following: SIB3 containing information on cell co-frequency and Inter-frequency (including Inter-RAT) reselection; SIB4 containing cell related information related to intra-frequency cell reselection; the SIB5 contains cell information interFreqCarrierFreqList related to inter-frequency cell reselection, including inter-frequency cell list, frequency, etc.
The rules for NSA still need to rely on LTE network setup. The deployed LTE network may have multiple frequency points (cells), and for an operator to deploy an NSA network, the multiple cells may need to be upgraded and modified, which results in an excessive investment.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a cell selection method, a network side device, and a user terminal, which can reside the user terminal in some specific frequency point cells according to the needs, so as to reduce the upgrading and reconstruction of the network.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a method for cell selection is provided, which is applied to a network side device, and includes:
sending a system broadcast message carrying an NSA terminal reading field to a user terminal, wherein the NSA terminal reading field comprises the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell.
Further, the NSA terminal camping and reselecting information includes at least one of:
NSA camping or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
Further, the method further comprises:
receiving terminal capability information reported by a user terminal, wherein the terminal capability information indicates whether the user terminal supports NSA capability or not;
and when the user terminal supports the NSA capability, switching the user terminal to a cell supporting the NSA capability.
Further, when the user equipment supports NSA capability, the switching the user equipment to a cell supporting NSA capability includes:
and when the cell corresponding to the network side equipment does not support the NSA capability, sending the measurement of the NSA capability supported by the LTE adjacent cell when judging mobility switching, and switching the user terminal to the cell supporting the NSA capability.
Further, the method further comprises:
a cell capability field is added to the X2 interface message indicating whether the cell supports NSA capability.
The embodiment of the invention also provides a method for selecting the cell, which is applied to the user terminal and comprises the following steps:
receiving a system broadcast message which is sent by a network side device and carries an NSA terminal reading field, wherein the NSA terminal reading field comprises the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell;
and reading the NSA terminal reading field, and residing or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the residing and reselecting information of the NSA terminal.
Further, the NSA terminal camping and reselecting information includes an NSA terminal frequency point camping priority, and the camping or reselecting of the cell supporting the NSA capability according to the NSA capability information of the cell and the NSA terminal camping and reselecting information includes:
and when a plurality of cells supporting NSA capability are detected, residing according to the residing priority of the NSA terminal frequency point.
The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver,
the transceiver is configured to send a system broadcast message carrying an NSA terminal read field to a user terminal, where the NSA terminal read field includes the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell.
Further, the NSA terminal camping and reselecting information includes at least one of the following:
NSA camping or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
Further, the transceiver is further configured to receive terminal capability information reported by a user terminal, where the terminal capability information indicates whether the user terminal supports NSA capability;
the processor is configured to switch the ue to a cell supporting NSA capability when the ue supports NSA capability.
Further, the processor is further configured to, when the cell corresponding to the network side device does not support the NSA capability, issue a measurement of the NSA capability supported by the LTE neighboring cell when determining mobility handover, and handover the user terminal to the cell supporting the NSA capability.
Further, the processor is further configured to add a cell capability field in the X2 interface message, the cell capability field indicating whether the cell supports NSA capability.
The embodiment of the invention also provides a user terminal, which comprises a transceiver and a processor,
the transceiver is configured to receive a system broadcast message that is sent by a network side device and carries an NSA terminal read field, where the NSA terminal read field includes the following information: NSA capability information of a cell and NSA terminal residing and reselecting information, wherein the NSA capability information of the cell indicates whether the cell supports NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell;
the processor is used for reading the NSA terminal reading field and residing or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the residing and reselecting information of the NSA terminal.
Further, the NSA terminal residing and reselecting information comprises NSA terminal frequency point residing priority,
the processor is specifically configured to camp according to the frequency point camping priority of the NSA terminal when a plurality of cells supporting the NSA capability are detected.
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, when executing the program, implements the method of cell selection as described above.
The embodiment of the invention also provides a user 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, when executing the program, implements the method of cell selection as described above.
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 method for cell selection as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, a cell selection scheme is provided, in which a network side device sends a system broadcast message carrying an NSA terminal read field to a user terminal, and assists the NSA terminal in cell selection, so that the user terminal can be resided in certain specific frequency point cells as required, thereby reducing network upgrade and modification.
Drawings
FIG. 1 is a schematic diagram of independent networking;
FIG. 2 is a schematic diagram of non-standalone networking;
fig. 3 is a flowchart illustrating a method for cell selection of a network device according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for cell selection of a ue according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a user 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 cell selection method, a network side device, and a user terminal, which can camp the user terminal in some specific frequency point cells as needed to reduce upgrading and reconstruction of a network.
An embodiment of the present invention provides a method for cell selection, which is applied to a network device, and as shown in fig. 3, the method includes:
step 101: sending a system broadcast message carrying an NSA terminal reading field to a user terminal, wherein the NSA terminal reading field comprises the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell.
In this embodiment, a scheme for cell selection is provided, in which a network side device sends a system broadcast message carrying an NSA terminal read field to a user terminal, and assists the NSA terminal in performing cell selection, so that the user terminal can be camped in some specific frequency point cells as needed, thereby reducing upgrading and reconstruction of a network.
Further, the NSA terminal camping and reselecting information includes at least one of:
NSA park or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
Further, the method further comprises:
receiving terminal capability information reported by a user terminal, wherein the terminal capability information indicates whether the user terminal supports NSA capability or not;
and when the user terminal supports the NSA capability, switching the user terminal to a cell supporting the NSA capability.
Further, when the user equipment supports NSA capability, the switching the user equipment to a cell supporting NSA capability includes:
and when the cell corresponding to the network side equipment does not support the NSA capability, issuing the measurement of the capability of supporting the NSA by the LTE adjacent cell when judging mobility switching, and switching the user terminal to the cell supporting the NSA capability.
Further, the method further comprises:
a cell capability field is added to the X2 interface message that indicates whether the cell supports NSA capability.
An embodiment of the present invention further provides a method for cell selection, which is applied to a user equipment, and as shown in fig. 4, the method includes:
step 201: receiving a system broadcast message which is sent by a network side device and carries an NSA terminal reading field, wherein the NSA terminal reading field comprises the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell;
step 202: and reading the NSA terminal reading field, and residing or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the residing and reselecting information of the NSA terminal.
In this embodiment, a scheme for cell selection is provided, where a network side device sends a system broadcast message carrying an NSA terminal read field to a user terminal, and assists the NSA terminal in performing cell selection, so that the user terminal can be resided in some specific frequency point cells as needed, thereby reducing upgrading and reconstruction of a network.
Further, the NSA terminal camping and reselecting information includes an NSA terminal frequency point camping priority, and the camping or reselecting of the cell supporting the NSA capability according to the NSA capability information of the cell and the NSA terminal camping and reselecting information includes:
and when a plurality of cells supporting NSA capability are detected, residing according to the residing priority of the NSA terminal frequency points.
The method for cell selection according to the present invention is described in detail below:
improvement for network side equipment
1) Adding cell capability identification in system broadcast message
Since the NSA terminal has new UE capability, it needs to consider that the network side device adds a specific field in the system broadcast message to guide the UE to camp on or reselect. A new set field is added to the system broadcast message to indicate that the cell supports NSA capability.
The field has a small Information amount, and can be added to MIB (Master Information Block) or other SIBs. Specifically, the meaning may be indicated in an MIB or SIB (System Information Block) new field, and taking MIB as an example, as shown below, underlining indicates a new field, and when the new field is 1, it indicates that the cell supports NSA.
That is, NSAcapability-R15 being "0" represents that the cell does not support NSA capability, and "1" represents that the cell supports NSA capability.
2) Directing NSA terminals to camp to a particular band cell in a system broadcast message
In order to guide the NSA terminal, a priority indication needs to be added to the system broadcast message, so that the NSA terminal and the LTE terminal can resolve to different priorities. The following schemes can be specifically adopted:
the first scheme is as follows: adding an NSA resident or reselection field, and adding a field read by an NSA terminal in the original system broadcast message of SIB3\ SIB4\ SIB5 related to reselection, such as:
fields such as NSAcellelReselectionCommon-R15, NSAcellelReselectionServinFreqInfo-R15 (including Snoninorsearch, threshServinLow and cellReselectionPriority) may be newly added to SIB 3;
newly adding NSAintraFreqNeighborCellInfo-R15 and NSAintraFreqBlackCellList-R15 fields in SIB 4;
the NSAinterFreqCarrierFreqList-R15 field is newly added in SIB 5.
And for the terminal, performing residence and reselection according to the information in the system broadcast message according to the UE capability of the terminal. And for the NSA capability terminal, performing residence and reselection according to the newly added field, and for the non-NSA capability terminal, executing according to the original field.
Scheme II: the added part field indicates the NSA park or reselection priority to provide overall park prioritization, such as TDD or FDD.
Fields may be newly added in the system broadcast message (MIB/SIB): NSA responsive-R15 INTEREGER, with a value range of (0..3),
NSA Resient-R15 is "00" indicating that the UE has no priority for TDD/FDD, "01" indicating that the UE preferentially camps on the TDD network, and "10" indicating that the UE preferentially camps on the FDD network.
The third scheme is as follows: a newly added part field, which indicates the retention priority (may be an absolute value or a relative value) of a specific frequency point of the NSA terminal, and a field may be newly added in a system broadcast message (MIB/SIB): nsacellresitionpriority-R15, whose priority is a priority value for the NSA terminal.
3) Preferential switching to NSA cell for connected UE
In the connected state, the switching (or redirection) control is mainly performed by the network side equipment. If the reporting capability of the UE supports NSA, if the cell does not support NSA, the network side equipment can preferentially issue the measurement of the support NSA function of the LTE adjacent cell when judging mobility switching, and actively switch the UE to the corresponding NSA cell when the condition is met.
4) To eNB interface
The eNB adds a field whether the Cell supports NSA capability or not in the X2 interface message, and interacts with other eNBs, relating to the < Served Cell Information in the X2setup request and X2setup response fields. The specific added fields may be as shown in the following table:
(II) improvements to the user terminal side
1) For user terminal not supporting NSA capability
Reselection and camping are still performed according to the existing cell camping/reselection threshold, that is, referring to the same frequency and different frequency reselection information of the cells in the original SIB3 and SIB4, such as cellreselection infocommon, cellreselection serving freqinfo, interfreqcarrier freqlist, etc.
2) For user terminal supporting NSA capability
The user terminal supporting NSA capability preferentially selects the cell with NSA identification in the system broadcast message, and selects MIB/SIB message containing NSA capability identification to preferentially reside or reselect.
If the user terminal supporting NSA capability detects a cell with a plurality of NSA identifications, the user terminal resides according to the NSA frequency point priority newly added in the SIB message.
An embodiment of the present invention further provides a network-side device, as shown in fig. 5, including a processor 31 and a transceiver 32,
the transceiver 32 is configured to send a system broadcast message carrying an NSA terminal read field to the user terminal, where the NSA terminal read field includes the following information: the NSA capability information of the cell indicates whether the cell supports NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell.
In this embodiment, a scheme for cell selection is provided, where a network side device sends a system broadcast message carrying an NSA terminal read field to a user terminal, and assists the NSA terminal in performing cell selection, so that the user terminal can be resided in some specific frequency point cells as needed, thereby reducing upgrading and reconstruction of a network.
Further, the NSA terminal camping and reselecting information includes at least one of:
NSA camping or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
Further, the transceiver 32 is further configured to receive terminal capability information reported by a user terminal, where the terminal capability information indicates whether the user terminal supports NSA capability;
the processor 31 is configured to handover the user terminal to a cell supporting NSA capability when the user terminal supports NSA capability.
Further, the processor 31 is further configured to, when the cell corresponding to the network side device does not support the NSA capability, issue a measurement indicating that the LTE neighboring cell supports the NSA capability when determining mobility handover, and handover the user equipment to the cell supporting the NSA capability.
Further, the processor 31 is further configured to add a cell capability field in the X2 interface message, where the cell capability field indicates whether the cell supports NSA capability.
Embodiments of the present invention further provide a user terminal, as shown in fig. 6, including a transceiver 42 and a processor 41,
the transceiver 42 is configured to receive a system broadcast message that is sent by a network side device and carries an NSA terminal read field, where the NSA terminal read field includes the following information: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell;
the processor 41 is configured to read the NSA terminal read field, and camp on or reselect a cell supporting the NSA capability according to the NSA capability information of the cell and the NSA terminal camping and reselecting information.
In this embodiment, a scheme for cell selection is provided, where a network side device sends a system broadcast message carrying an NSA terminal read field to a user terminal, and assists the NSA terminal in performing cell selection, so that the user terminal can be resided in some specific frequency point cells as needed, thereby reducing upgrading and reconstruction of a network.
Further, the NSA terminal residing and reselecting information comprises the residing priority of the NSA terminal frequency point,
the processor 41 is specifically configured to camp according to the frequency point camping priority of the NSA terminal when multiple cells supporting the NSA capability are detected.
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 when executing the program implements the method of cell selection as described above.
The embodiment of the invention also provides a user 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, when executing the program, implements the method of cell selection as described above.
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 method for cell selection as described above.
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the 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 (17)
1. A method for cell selection is applied to a network side device, and includes:
sending a system broadcast message carrying an NSA terminal read field to a user terminal, wherein the NSA terminal read field comprises: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell; adding a priority indication in the system broadcast message, so that the NSA terminal and the LTE terminal resolve to different priorities, wherein the priority indication comprises at least one of the following: adding NSA resident or reselection fields, and adding fields read by NSA terminals in original system broadcast messages of SIB3\ SIB4\ SIB5 related to reselection; the newly added part field indicates NSA resident or reselection priority so as to provide an integral resident priority newly added part field; and a newly added part field for indicating the retention priority of the specific frequency point of the NSA terminal.
2. The method of cell selection according to claim 1, wherein the NSA terminal camping and reselection information comprises at least one of:
NSA camping or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
3. The method of cell selection according to claim 1, further comprising:
receiving terminal capability information reported by a user terminal, wherein the terminal capability information indicates whether the user terminal supports NSA capability or not;
and when the user terminal supports the NSA capability, switching the user terminal to a cell supporting the NSA capability.
4. The method of cell selection according to claim 3, wherein the switching the user terminal to the cell supporting NSA capability when the user terminal supports NSA capability comprises:
and when the cell corresponding to the network side equipment does not support the NSA capability, issuing the measurement of the capability of supporting the NSA by the LTE adjacent cell when judging mobility switching, and switching the user terminal to the cell supporting the NSA capability.
5. The method of cell selection according to claim 1, further comprising:
a cell capability field is added to the X2 interface message indicating whether the cell supports NSA capability.
6. A method for cell selection, applied to a user terminal, includes:
receiving a system broadcast message which is sent by a network side device and carries an NSA terminal reading field, wherein the NSA terminal reading field comprises: the NSA capability information of the cell indicates whether the cell supports the NSA capability, and the NSA terminal residing and reselecting information indicates that the NSA terminal resides in a specific cell; adding a priority indication in the system broadcast message, so that the NSA terminal and the LTE terminal resolve to different priorities, wherein the priority indication comprises at least one of the following: adding an NSA resident or reselecting field, and adding a field read by an NSA terminal in the original system broadcast message of SIB3\ SIB4\ SIB5 related to reselection; the newly added part field indicates NSA resident or reselection priority so as to provide an integral resident priority newly added part field; a newly added part field for indicating the retention priority of the specific frequency point of the NSA terminal;
and reading the NSA terminal reading field, and residing or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the residing and reselecting information of the NSA terminal.
7. The method according to claim 6, wherein the NSA terminal camping and reselecting information includes NSA terminal frequency point camping priority, and the camping or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the NSA terminal camping and reselecting information includes:
and when a plurality of cells supporting NSA capability are detected, residing according to the residing priority of the NSA terminal frequency point.
8. A network side device, comprising a processor and a transceiver,
the transceiver is configured to send a system broadcast message carrying an NSA terminal read field to the user terminal, where the NSA terminal read field includes: NSA capability information of a cell and residing and reselecting information of an NSA terminal, wherein the NSA capability information of the cell indicates whether the cell supports NSA capability or not, and the residing and reselecting information of the NSA terminal indicates that the NSA terminal resides in a specific cell; adding a priority indication in the system broadcast message, so that the NSA terminal and the LTE terminal resolve to different priorities, wherein the priority indication comprises at least one of the following: adding an NSA resident or reselecting field, and adding a field read by an NSA terminal in the original system broadcast message of SIB3\ SIB4\ SIB5 related to reselection; the newly added part field indicates NSA resident or reselection priority so as to provide an integral resident priority newly added part field; and a newly added part field for indicating the retention priority of the specific frequency point of the NSA terminal.
9. The network-side device of claim 8, wherein the NSA terminal camping and reselecting information comprises at least one of:
NSA camping or reselection rules;
NSA camping or reselection priority;
and the NSA terminal frequency point residing priority.
10. The network-side device of claim 8,
the transceiver is further configured to receive terminal capability information reported by a user terminal, where the terminal capability information indicates whether the user terminal supports an NSA capability;
the processor is configured to switch the ue to a cell supporting NSA capability when the ue supports NSA capability.
11. The network-side device of claim 10,
the processor is further configured to issue a measurement that the LTE neighboring cell supports the NSA capability when determining mobility handover when the cell corresponding to the network side device does not support the NSA capability, and handover the user terminal to the cell supporting the NSA capability.
12. The network-side device of claim 8,
the processor is further configured to add a cell capability field in the X2 interface message, the cell capability field indicating whether the cell supports NSA capability.
13. A user terminal, comprising a transceiver and a processor,
the transceiver is configured to receive a system broadcast message that is sent by a network side device and carries an NSA terminal read field, where the NSA terminal read field includes: NSA capability information of a cell and residing and reselecting information of an NSA terminal, wherein the NSA capability information of the cell indicates whether the cell supports NSA capability or not, and the residing and reselecting information of the NSA terminal indicates that the NSA terminal resides in a specific cell; adding a priority indication in the system broadcast message, so that the NSA terminal and the LTE terminal resolve to different priorities, wherein the priority indication comprises at least one of the following: adding NSA resident or reselection fields, and adding fields read by NSA terminals in original system broadcast messages of SIB3\ SIB4\ SIB5 related to reselection; the newly added part field indicates NSA resident or reselection priority so as to provide an integral resident priority newly added part field; a newly added part field for indicating the retention priority of the specific frequency point of the NSA terminal;
the processor is used for reading the NSA terminal reading field and residing or reselecting the cell supporting the NSA capability according to the NSA capability information of the cell and the residing and reselecting information of the NSA terminal.
14. The UE of claim 13, wherein the NSA terminal camping and reselecting information includes NSA terminal frequency point camping priority,
the processor is specifically configured to camp according to the frequency point camping priority of the NSA terminal when multiple cells supporting the NSA capability are detected.
15. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; a method of cell selection according to any of claims 1-5, when the processor executes the program.
16. A user terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; a method for cell selection according to claim 6 or 7, when the processor executes the program.
17. A computer readable storage medium, having stored thereon a computer program, characterized in that the program, when being executed by a processor, is adapted to carry out the steps of the method for cell selection according to any one of claims 1-5 or the steps of the method for cell selection according to claim 6 or 7.
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| CN110856226B (en) * | 2019-10-21 | 2022-08-23 | 中国移动通信集团江苏有限公司 | Network access method, device, equipment and storage medium |
| CN112788708A (en) * | 2019-11-06 | 2021-05-11 | 大唐移动通信设备有限公司 | Resident cell determination method, information sending method, terminal and network side equipment |
| CN110856233B (en) * | 2019-11-14 | 2022-04-22 | Oppo广东移动通信有限公司 | Communication control method and related product |
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