CN106454969B - A method of accelerating multimode user terminal network selection process - Google Patents
A method of accelerating multimode user terminal network selection process Download PDFInfo
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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
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality 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 present invention proposes a kind of method for accelerating multimode user terminal network selection process: UE is successfully resident to a cell, when AS receives the message comprising complete adjacent cell list, according to UE and the mode of network support (all modes of usual network support UE), parse the information of adjacent cells of each mode in all UE support modes, and it is reported to NAS, the neighboring cell list of each mode when as subsequent network selection, as far as possible reduction UE initiate the blind possibility for searching cell selection procedure；Simultaneously, during resident, according to newest measurement information in neighbor cell (the anomalous mode nearby region measurement result of mainly current residing mode), the specific adjacent cell list information that AS is arrived to NAS reporting measurement, the neighboring cell list for the associative mode that timely updates allow UE to reduce the blind examination to frequency point to the greatest extent, to effectively accelerate the network selection process of multimode UE, shorten network selection time delay, reduce UE power consumption, improves user experience.
Description
Technical field
The present invention relates in a kind of mobile communication system accelerate multimode user terminal (referred to as UE) network selection process method,
It effectively shortens network selection time delay, UE is allowed to be resident suitable network as early as possible.
Background technique
In mobile communication system, with the continuous development of technology and evolution, multiple wireless access technologys (or are mould
Formula) long-term co-existence has been undisputable fact, support the intelligent subscriber terminal of multi-mode to be widely used and popularize.Different
Access technology (mode) is each advantageous, in order to meet the multiple business demand of user, and mentions whenever and wherever possible for user as much as possible
For the service of fast and stable, it is desirable to which multimode user terminal can fast and accurately be resident the good network of signal quality, in time
User is responded to require.Network selection, cell selection procedure especially under multimode scene, UE can quickly be resident net desired by user
It is particularly important in network.Certainly, the user of different demands, it is desirable to which the service of acquisition is also not quite similar, in conjunction with the excellent of each access technology
Gesture, user can be with flexible setting modes.UE completes relevant operation according to the mode of user setting in time, is resident corresponding net
In network, good service is provided for user.
In 3GPP wireless communication protocol standards, protocol stack is broadly divided into access layer (AS) and the big portion of Non-Access Stratum (NAS) two
Point, AS is mainly responsible for the functions such as wireless heterogeneous networks, access procedure, cell selection/reselection, NAS be mainly responsible for search net, network selection,
The functions such as mobile management, session management.In the network selection process of multimode UE, NAS according to network selection principle be responsible for select PLMN and its
The mode of support, AS are then requested according to the network selection of NAS, are completed cell selection procedure and (are attempted selection in specified PLMN to meet
The cell of condition is resident).
According to 3GPP protocol specification, in the case of automatic network selection, according to PLMN priority from high to low suitable when selecting PLMN
Sequence successively selects, and priority is not specified by between the multiple wireless access technologys (mode) supported in a PLMN, usually more
The mode priority of mould UE is realized according to user setting (when user is not provided with using default priority sequence).For
Multimode UE, user can according to need the priority being arranged between different mode combinations and mode, such as: for supporting 2G/3G/
The multimode UE of tri- modes of 4G, user can according to need the user mode for being set as only supporting the multiple combinations mode such as 4G or 3G
(hereinafter referred to as user mode).Therefore, network selection process is to select PLMN according to network selection principle first, then in selected PLMN
Middle selection mode successively carries out network selection/cell to the mode of support and selects, until finding the cell that can be resident.Cell selection
There are two types of process is usual: the cell with storage list selects (or selecting for the cell with BA table), initial cell selection (i.e. blind
Cell selection, the selection of normal cell searched), and preferential cell selection procedure of the execution with storage list, when storage list
When cell is all unsatisfactory for resident condition, then execute the blind cell selection procedure searched.
According to above-mentioned network selection and cell selection principle, in existing technical solution, under automatic network selection mode, multimode UE is executed
The process of PLMN network selection, mainly comprises the steps of:
1. trigger automatic network selection process (such as the scenes such as booting, loss covering), the NAS of multimode UE is according to network selection principle
The PLMN (being denoted as PLMN1) that highest priority is selected in PLMN list to be selected, then according to mode priority orders,
According to the mode (being denoted as mode 1) of the model selection highest priority of user setting in the mode that PLMN1 is supported, to the mode
AS (being denoted as AS1) sends network selection request signal and (if preserving the neighboring cell list of the mode, carries this in network selection request and deposit
List is stored up, otherwise without list)；
It after 2.AS1 receives network selection request, checks whether and carries adjacent area storage list (i.e. BA table), execute band storage respectively
The cell selection of list and blind cell of searching select:
If 2.1. there is storage list, the cell selection procedure with storage list is first carried out, it may be assumed that the cell in list
Signal quality detection, basis signal quality are carried out from by force to the weak System information block (System for successively attempting to parse each cell
Information Block, abbreviation SIB), the resident condition of satisfaction is checked whether, until finding the cell that can be resident；Otherwise after
It is continuous to execute step 2.2；
If 2.2. these cells are all unsatisfactory for resident condition, AS1 then executes the blind cell selection procedure searched: search AS1
The cell in all frequency ranges supported sorts according to the signal quality of detection, from by force to weak successively trial analytic signal quality height
In the System information block (cell that front has parsed is no longer attempt to) of the cell of some thresholding, the resident item of satisfaction is checked whether
Part, until finding the cell that can be resident；
If 2.1 ' not storing list, the blind cell selection procedure searched directly is executed, process is similar with step 2.2；
3. if entering step 6 AS1 finds the cell for meeting resident condition in PLMN1, otherwise continuing to execute next
Step；
4. if AS1 is supported to NAS report network selection failure, NAS to PLMN1 blind search process still and can not find suitable cell
Next mode access layer (being denoted as AS2) initiate network selection process；It repeats the above steps, until all support modes all select
It is complete；
5. if NAS successively selects next PLMN (to be denoted as all do not find suitable cell under all modes of PLMN1
PLMN2), multiple modes that PLMN2 is supported successively are carried out network selection by similar step 1, are up to finding the cell that can be resident
Only；
6.AS finds the cell for meeting resident condition, to NAS report network selection success, is resident the cell.AS, which is received, includes
When the system message of complete adjacent cell list, the adjacent cell of active user's mode is only parsed, and reports adjacent cell list to NAS
(only including the adjacent area of user mode), neighboring cell list when as subsequent network selection under associative mode；
7. subsequent UE executes network selection, repeat the above steps.
In terms of above-mentioned process, the cell selection procedure of step 2 is if NAS carries storage list in network selection request, then excellent
The cell selection procedure with list is first carried out, AS directly carries out signal measurement, resolution system message to the cell of storage list, if
There is the cell for meeting resident condition that can quickly be resident, provides service in time for user.And the blind cell selection procedure searched, then
The frequency point in all frequency ranges to support the mode carries out blind examination measurement, then successively attempts to parse according to signal quality power
Its system message.It is clear that the blind process of searching takes a long time and power consumption is larger, if the neighbour of a mode can timely and accurately be provided
Cell list, UE is finding the cell that can be resident in the cell choice phase with storage list when network selection, then can reduce well
Power consumption accelerates cell selection procedure, shortens network selection time delay.Therefore, neighboring cell list (the i.e. BA of each mode is timely and accurately provided
Table), it is particularly important to the cell selection procedure under each mode.
In the step 6 of above-mentioned prior art, what the adjacent cell list in this mode of AS1 configured is specific cell letter
Breath, and the adjacent cell list of different system (mode) is all only to be configured with adjacent area frequency point (not having a cell ID, such as 2G cell
The PCI of the PSC of BSIC, 3G, 4G), such as: under the configuration of 3G/4G adjacent cell, 3G under 2G mode in SI2quater message in SIB19
4G neighbor cell configuration, 2G/3G neighbor cell configuration in SIB6/7 under 4G.These neighboring cell lists are used as the storage list during network selection,
Blind examination is carried out to these frequency points, can also increase network selection time delay and power consumption.
Meanwhile AS only parses and reports the neighboring BS information of active user's mode in step 6, and these adjacent areas are largely
Frequency point (except current residing mode) only is configured, if subsequent user has modified user mode, especially increase support mode
Under scene (usual all modes of network support UE), for example original users mode is 2G/3G, and newly-installed user mode is 2G/
3G/4G and 4G mode override when executing the network selection of 4G mode under some PLMN, does not save the adjacent area 4G according to the prior art
List, can only directly execute the blind cell selection procedure searched, and network selection time delay and power consumption are all very big.In addition, if executing under 3G mode
Network selection only save the adjacent area 3G frequency point if be resident under 2G or 4G mode before, then under 3G mode will to these frequency
Point carries out blind examination, and network selection time delay increased.
Summary of the invention
In consideration of it, the invention proposes a kind of method for accelerating multimode user terminal network selection process, this method makes multimode UE
When executing network selection (in the case that especially new user mode is increase mode), suitable network resident is selected as early as possible, is contracted
Short network selection time delay reduces UE power consumption, provides good service in time for user.
In the method for the present invention, adjacent cell list to other modes received under the current residing mode of UE takes some places
Reason mode: the adjacent cell that AS is parsed and all UE is reported to support mode；In addition, being timely updated user's mould according to most recent measurements
The specific cell information of each mode in formula reports each mode adjacent cell list to NAS, to accelerate the subsequent network selection process of UE.
Detailed process in the method for the present invention is described as follows:
When S1. triggering automatic network selection process (such as the scenes such as booting, loss covering), the NAS of multimode UE is according to network selection original
The PLMN (being denoted as PLMN1) that highest priority is then selected in PLMN list to be selected, then according to mode priority orders,
According to the mode (being denoted as mode 1) of the model selection highest priority of user setting in the mode that PLMN1 is supported, to the mode
AS (being denoted as AS1) sends network selection request signal and (if preserving the neighboring cell list of the mode, carries this in network selection request and deposit
List is stored up, otherwise without list)；
It after S2.AS1 receives network selection request, checks whether and carries adjacent area storage list (i.e. BA table), execute band respectively and deposit
The cell selection of storage list and blind cell of searching select:
If S2.1. there is storage list, the cell selection procedure with storage list is first carried out, it may be assumed that small in list
Area carries out signal quality detection, basis signal quality from by force to the weak System information block (System for successively attempting to parse each cell
Information Block, abbreviation SIB), the resident condition of satisfaction is checked whether, until finding the cell that can be resident；Otherwise after
It is continuous to execute step S2.2；
If S2.2. these cells are all unsatisfactory for resident condition, AS1 then executes the blind cell selection procedure searched: search AS1
The cell in all frequency ranges supported sorts according to the signal quality of detection, from by force to weak successively trial analytic signal quality height
In the System information block (cell that front has parsed is no longer attempt to) of the cell of some thresholding, the resident item of satisfaction is checked whether
Part, until finding the cell that can be resident；
S2.1 ' directly executes the blind cell selection procedure searched if does not store list, and process is similar with step S2.2；
If S3. AS1 finds the cell for meeting resident condition in PLMN1, S6 is entered step, is otherwise continued to execute next
Step；
If S4. blind search process still and can not find suitable cell, AS1 is supported to NAS report network selection failure, NAS to PLMN1
Next mode access layer (being denoted as AS2) initiate network selection process；It repeats the above steps, until all support modes all select
It is complete；
If S5. all not finding suitable cell under all modes of PLMN1, NAS successively selects next PLMN (to be denoted as
PLMN2), multiple modes that PLMN2 is supported successively are carried out network selection by similar step S1, are up to finding the cell that can be resident
Only；
S6.AS finds the cell for meeting resident condition, to NAS report network selection success, is resident the cell；
When S6.1.AS receives the message comprising complete adjacent cell list, the neighbour for parsing all UE and network support mode is small
Area's (adjacent cell for being not limited only to user mode), and these adjacent cell lists are reported to NAS；
S6.2. normally in resident situation, UE executes measurement according to measuring criterion, to the adjacent area under user mode, and AS is received
(primarily with respect to the anomalous mode formula adjacent area for only configuring frequency point) when adjacent cell measurement result, the specific cell information measured, on
NAS is offered, the neighboring cell list of associative mode is updated；
S6.3. multimode UE executes gravity treatment, switching or other processes when being resident new cell after, according to step S6.1,
The principle of S6.2 updates the neighboring cell list of associative mode to NAS in time；
S7. it when subsequent UE executes network selection, repeats the above steps.NAS according to network selection principle, preferentially using step S6.1~
The adjacent cell list provided in S6.3 initiates selected mode to allow UE to be resident finger as early as possible with the cell selection procedure of storage list
Determine network.
For manual network selection process, PLMN is selected by user, other processes are as automatic network selection mode.Therefore no longer superfluous
It states.
The effect of optimization of the method for the present invention is: when network selection, UE successively executes network selection/cell according to user mode and selected
Journey, it is (logical according to UE and the mode of network support after AS receives the message comprising complete adjacent cell list when being resident certain cell
All modes of normal network support UE), it parses all UE and supports the adjacent cell of mode and be reported to NAS, rather than only parsing is used
Adjacent area under the mode of family, when the new user mode of subsequent setting, when especially carrying out network selection to newly-increased mode, UE can be executed preferentially
Cell selection with storage list, is resident suitable cell as early as possible, to accelerate network selection process, shortens network selection time delay, and greatly
Ground reduces UE power consumption；Meanwhile AS obtains the specific adjacent cell list of each mode according to most recent measurements, and is reported to NAS,
It allows UE to obtain effective information of adjacent cells in time, provides effective neighboring cell list for the network selection under the subsequent mode, it equally can be with
Accelerate network selection process, shorten network selection time delay, reduces UE power consumption.These can improve user experience well.
Detailed description of the invention
In order to be more clear the purpose of the present invention, technical scheme and beneficial effects, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the flow diagram of art methods；
Fig. 2 is the flow diagram of the method for the invention.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the method for the present invention is described in detail.
In order to shorten multimode UE network selection time delay, the present invention proposes a kind of processing method for accelerating multimode UE network selection process, should
The flow diagram of method as shown in Fig. 2, this method specifically includes the following steps:
When S1. triggering automatic network selection process (such as the scenes such as booting, loss covering), the NAS of multimode UE is according to network selection original
The PLMN (being denoted as PLMN1) that highest priority is then selected in PLMN list to be selected, then according to mode priority orders,
According to the mode (being denoted as mode 1) of the model selection highest priority of user setting in the mode that PLMN1 is supported, to the mode
AS (being denoted as AS1) sends network selection request signal and (if preserving the neighboring cell list of the mode, carries this in network selection request and deposit
List is stored up, otherwise without list)；
It after S2.AS1 receives network selection request, checks whether and carries adjacent area storage list (i.e. BA table), execute band respectively and deposit
The cell selection of storage list and blind cell of searching select:
If S2.1. there is storage list, the cell selection procedure with storage list is first carried out, it may be assumed that small in list
Area carries out signal quality detection, basis signal quality from by force to the weak System information block (System for successively attempting to parse each cell
Information Block, abbreviation SIB), the resident condition of satisfaction is checked whether, until finding the cell that can be resident；Otherwise after
It is continuous to execute step S2.2；
If S2.2. these cells are all unsatisfactory for resident condition, AS1 then executes the blind cell selection procedure searched: search AS1
The cell in all frequency ranges supported sorts according to the signal quality of detection, from by force to weak successively trial analytic signal quality height
In the System information block (cell that front has parsed is no longer attempt to) of the cell of some thresholding, the resident item of satisfaction is checked whether
Part, until finding the cell that can be resident；
S2.1 ' directly executes the blind cell selection procedure searched if does not store list, and process is similar with step S2.2；
If S3. AS1 finds the cell for meeting resident condition in PLMN1, S6 is entered step, is otherwise continued to execute next
Step；
If S4. blind search process still and can not find suitable cell, AS1 is supported to NAS report network selection failure, NAS to PLMN1
Next mode access layer (being denoted as AS2) initiate network selection process；It repeats the above steps, until all support modes all select
It is complete；
If S5. all not finding suitable cell under all modes of PLMN1, NAS successively selects next PLMN (to be denoted as
PLMN2), multiple modes that PLMN2 is supported successively are carried out network selection by similar step S1, are up to finding the cell that can be resident
Only；
S6.AS finds the cell for meeting resident condition, to NAS report network selection success, is resident the cell；
When S6.1.AS receives the message comprising complete adjacent cell list, the neighbour for parsing all UE and network support mode is small
Area's (adjacent cell for being not limited only to user mode), and these adjacent cell lists are reported to NAS；
S6.2. normally in resident situation, UE executes measurement according to measuring criterion, to the adjacent area under user mode, and AS is received
(primarily with respect to the anomalous mode formula adjacent area for only configuring frequency point) when adjacent cell measurement result, the specific cell information measured, on
NAS is offered, the neighboring cell list of associative mode is updated；
S6.3. multimode UE executes gravity treatment, switching or other processes when being resident new cell after, according to step S6.1,
The principle of S6.2 updates the neighboring cell list of associative mode to NAS in time；
S7. it when subsequent UE executes network selection, repeats the above steps.NAS according to network selection principle, preferentially using step S6.1~
The adjacent cell list provided in S6.3 initiates selected mode to allow UE to be resident finger as early as possible with the cell selection procedure of storage list
Determine network.
In attached drawing 1, AS only parses the neighboring cell list of user mode, and the only neighboring BS information of report network configuration.
In attached drawing 2, AS parses neighboring cell list (mode that UE is supported except user mode, the AS that all UE support mode
Parse its neighboring BS information), meanwhile, the specific cell list information measured is updated to NAS according to most recent measurements.
Comparison diagram 1, Fig. 2 process, in Fig. 2, when AS receives the message comprising complete neighboring cell list, if network support UE
All modes, the neighboring cell list for parsing and all UE being reported to support modes, meanwhile, during resident, according to most recent measurements,
The specific cell information for updating each mode measured to NAS in time, provides the neighboring cell list of each mode, in subsequent network selection process
In, reduction AS directly initiates the blind possibility for searching cell selection as far as possible, to accelerate network selection process.It can be seen that the method for the present invention
It can accelerate network selection process well, shorten network selection time delay, reduce UE power consumption, achieved the purpose that Optimizing Flow.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, without departing substantially from this
In the case where the spirit and its essence of inventive method, those skilled in the art in accordance with the present invention method make it is a variety of corresponding
Change, these belong to the range that the method for the present invention claims are protected.
Claims (1)
1. a kind of method for accelerating multimode user terminal network selection process, it is characterised in that: the following steps are included:
When S1. triggering automatic network selection process, the NAS of multimode UE selects priority most in PLMN list to be selected according to network selection principle
High PLMN is denoted as PLMN1, then according to mode priority orders, according to the mould of user setting in the mode that PLMN1 is supported
Formula selects the mode of highest priority, to be denoted as mode 1, network selection request signal is sent to the AS of the mode, i.e. AS1, if protected
There is the adjacent area storage list of the mode, then adjacent area storage list carried in network selection request, otherwise without list；
It after S2.AS1 receives network selection request, checks whether and carries adjacent area storage list, i.e. BA table, execute band adjacent area respectively and store
The cell selection of list and blind cell of searching select:
If S2.1. there is adjacent area to store list, the cell selection procedure with adjacent area storage list is first carried out, it may be assumed that deposit to adjacent area
Cell in storage list carries out signal quality detection, basis signal quality from disappearing to the weak system for successively attempting to parse each cell by force
Block SIB is ceased, the resident condition of satisfaction is checked whether, until finding the cell that can be resident；Otherwise step S2.2 is continued to execute；
If S2.2. these cells are all unsatisfactory for resident condition, AS1 then executes the blind cell selection procedure searched: search AS1 is supported
All frequency ranges on cell, according to detection signal quality sort, from by force to it is weak successively attempt analytic signal quality be higher than certain
The System information block of the cell of a thresholding, before the cell that has parsed be no longer attempt to, check whether the resident condition of satisfaction, until
Find the cell that can be resident；
If S2.1. storing list without adjacent area, the blind cell selection procedure searched directly is executed, process is the same as step S2.2；
If S3. AS1 finds the cell for meeting resident condition in PLMN1, S6 is entered step, is otherwise continued to execute in next step；
If S4. blind search process still and can not find suitable cell, AS1 is to NAS report network selection failure, under NAS is supported to PLMN1
The access layer of one mode, i.e. AS2 initiate network selection process；It repeats the above steps, until all support modes have all selected；
If S5. all not finding suitable cell under all modes of PLMN1, NAS successively selects next PLMN, is denoted as
Multiple modes that PLMN2 is supported successively are carried out network selection by PLMN2, similar step S1, are up to finding the cell that can be resident
Only；
S6.AS finds the cell for meeting resident condition, to NAS report network selection success, is resident the cell；
In step s 6, specifically further include:
When S6.1.AS receives the message comprising the storage list of complete adjacent area, the adjacent cell of all UE and network support mode are parsed,
It is not limited only to the adjacent cell of user mode, and reports these adjacent areas to store list to NAS；
S6.2. normally in resident situation, UE executes measurement according to measuring criterion, to the adjacent area under user mode, and AS receives adjacent small
When region measurement result, the specific cell information measured is reported to NAS by the anomalous mode formula adjacent area for only configuring frequency point, is updated
The adjacent area of associative mode stores list；
S6.3. when multimode UE execution gravity treatment, switching or other processes are resident new cell after, according to step S6.1, S6.2
Principle stores list to the adjacent area that NAS updates associative mode in time；
S7. it when subsequent UE executes network selection, repeats the above steps；NAS is according to network selection principle, preferentially using in step S6.1~S6.3
The cell selection procedure of adjacent area storage list is initiated selected mode in the adjacent area storage list of offer, allows UE to be resident as early as possible specified
Network.
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| CN110022605B (en) * | 2018-01-10 | 2022-04-29 | 展讯通信（上海）有限公司 | Core network registration method, device and terminal |
| CN109286963A (en) * | 2018-10-22 | 2019-01-29 | 上海移芯通信科技有限公司 | A kind of method for searching network, device and terminal |
| CN111181667A (en) * | 2018-11-13 | 2020-05-19 | 普天信息技术有限公司 | Processing method for cell selection based on NR-U |
| CN110677890B (en) * | 2019-12-03 | 2020-04-10 | 翱捷科技(上海)有限公司 | Multi-card multi-4G mobile terminal and network reselection method thereof |
| CN110913459B (en) * | 2019-12-17 | 2022-03-11 | 重庆邮电大学 | Method for optimizing network selection process of multi-mode multi-band user terminal |
| CN114339952B (en) * | 2020-09-29 | 2023-07-25 | 紫光展锐(重庆)科技有限公司 | Multimode terminal communication method and communication device |
| CN112235848B (en) * | 2020-10-14 | 2022-08-16 | 展讯通信（上海）有限公司 | Network searching method, device, terminal and storage medium |
| CN112367688B (en) * | 2020-10-27 | 2023-12-22 | 广东小天才科技有限公司 | Network selection method, terminal equipment and computer readable storage medium |
| CN112469108B (en) * | 2020-11-16 | 2023-08-01 | 上海擎昆信息科技有限公司 | Network residence method and device |
| CN112637918B (en) * | 2021-01-05 | 2023-03-14 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Network priority selection method, terminal and system for terminal in NR (noise-and-noise) shared network |
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