CN105357722A - Cell reselection method and device - Google Patents
Cell reselection method and device Download PDFInfo
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- CN105357722A CN105357722A CN201410407913.5A CN201410407913A CN105357722A CN 105357722 A CN105357722 A CN 105357722A CN 201410407913 A CN201410407913 A CN 201410407913A CN 105357722 A CN105357722 A CN 105357722A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 154
- 230000005484 gravity Effects 0.000 claims description 32
- 238000011156 evaluation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/00835—Determination 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
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
-
- 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 discloses a cell reselection method. The method includes the following steps that: user equipment (UE) completes a measurement of a neighbor cell according to a measurement rule; the UE initiates a reselection of the neighbor cell when the UE determines that measurement values of the neighbor cell meet a cell reselection threshold value and a cell reselection parameter Tn is zero; or, the UE initiates the reselection of the neighbor cell when the UE determines that N measurements of the neighbor cell are completed continuously, the obtained measurement values meet the cell reselection threshold value, and the value of an N and the value of the Tn are identical. The invention also discloses a cell reselection device. According to the invention, the method and the device can improve the timeliness of cell reselection of the UE, and reduce unnecessary power consumption of the UE.
Description
Technical field
The present invention relates to the cell reselection technique in mobile communication, particularly relate to a kind of method and device of cell reselection.
Background technology
The cell re-selection conditions that third generation partner program (3GPP, 3rdGenerationPartnershipProject) specifies can be summarized as: adjacent area or comprise Serving cell and meet certain measurement thresholding within the cell reselection evaluation Treselection time; Wherein, Treselection value is specified by system information, and span is 0 ~ 7 second.
And at subscriber equipment (UE, UserEquipment) nearby region measurement aspect is performed, 3GPP defines the minimum measurement capability of UE, namely the longest interval measuring period, concrete as shown in the homogeneous-frequency adjacent-domain meter of table one and general land wireless access (UTRA, the UniversalTelecommunicationRadioAccess) meter of table two:
Table one
Table two
In table one, the measuring period of homogeneous-frequency adjacent-domain is T
measure, EUTRAN_Intra; In table two, the measuring period of UTRA is N*T
measureUTRA_FDD, N is that the UTRA started measures frequency number.As can be seen from above-mentioned table, measuring period is in units of DRX cycle length.
Cell reselection evaluation is measured as basis, the cell reselection evaluation duration of setting forth above (0 ~ 7 second) and the definition of measurement period T measurement duration are connected and can be found out, assessment duration is not the integral multiple of measuring period, therefore, cell reselection evaluation can be caused to occur some invalid stand-by period.As shown in Figure 1, Tmeasurement is measuring period, and Treselection is assessment duration, and the Treselection time is greater than Tmeasurement, according to agreement evaluation criteria, must at Treselection timer expiry, namely the T1 moment of Fig. 1 carries out cell reselection, and in fact, within the Tnull time, there will be no new measurement to perform, therefore, is the invalid stand-by period during this period of time.
Figure 2 shows that the Tmeasurement time is greater than Treselection situation, except existing except one-shot measurement in the T0 moment, in Treselection, do not have new measurement perform, therefore, the time, Treselection, Tnull were equally ineffective time.Thisly cause the way of invalid evaluations time because measuring period and cell reselection evaluation duration border do not overlap, be not only delayed the cell reselection of UE, too increase the power consumption that UE is extra.
Summary of the invention
In view of this, the embodiment of the present invention expects the method and the device that provide a kind of cell reselection, can improve the cell reselection promptness of UE, reduce unnecessary power consumption.
For achieving the above object, technical scheme of the present invention is achieved in that
Embodiments provide a kind of method of cell reselection, described method comprises:
UE completes the measurement to adjacent area according to measuring criterion;
UE determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, be initiated to the gravity treatment of described adjacent area; Or,
UE determines to complete N the measurement to adjacent area continuously, and the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, is initiated to the gravity treatment of described adjacent area; Wherein N is positive integer.
In such scheme, before described UE completes the measurement to adjacent area according to measuring criterion, described method also comprises: UE receives and preserves the system message of Serving cell, completes the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
In such scheme, described method also comprises: UE determines to complete i the measurement to adjacent area continuously, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein i ∈ [0, N].
The embodiment of the present invention additionally provides a kind of device of cell reselection, and described device comprises: measurement module, determination module and cell reselection module; Wherein,
Described measurement module, for completing the measurement to adjacent area according to measuring criterion;
Described determination module, for determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, trigger described cell reselection module; Or determine to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, triggers described cell reselection module; Wherein N is positive integer;
Described cell reselection module, for being initiated to the gravity treatment of described adjacent area.
In such scheme, described measurement module, also for receiving and preserving the system message of Serving cell, completes the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
In such scheme, described determination module, also complete i the measurement to adjacent area continuously for determining, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein i ∈ [0, N].
The method of the cell reselection that the embodiment of the present invention provides and device, UE completes the measurement to adjacent area according to measuring criterion; UE determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, be initiated to the gravity treatment of described adjacent area; Or UE determines to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, is initiated to the gravity treatment of described adjacent area; Wherein, N is positive integer.So, the invalid evaluations time in cell reselection process can be eliminated, improve the cell reselection promptness of UE, reduce unnecessary power consumption.
Accompanying drawing explanation
Fig. 1 is the first contrast schematic diagram of measuring period and assessment duration in cell reselection;
Fig. 2 is the second contrast schematic diagram of measuring period and assessment duration in cell reselection;
Fig. 3 is the method flow schematic diagram of the embodiment of the present invention one cell reselection;
Fig. 4 is the method flow schematic diagram of the embodiment of the present invention two cell reselection;
Fig. 5 is the device composition structural representation of embodiment of the present invention cell reselection.
Embodiment
In embodiments of the present invention, UE foundation measuring criterion completes the measurement to adjacent area; UE determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, be initiated to the gravity treatment of described adjacent area; Or UE determines to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, is initiated to the gravity treatment of described adjacent area; Wherein, N is positive integer.
Fig. 3 is the method flow schematic diagram of the embodiment of the present invention one cell reselection, and as shown in Figure 3, the method for the present embodiment cell reselection comprises:
Step 301:UE completes the measurement to adjacent area according to measuring criterion;
Before this step, described method also comprises: UE receives and preserves the system message of Serving cell, completes the measurement to Serving cell; Specifically comprise: it is resident and enter Idle state that UE completes community, receive and preserve the system message of cell broadcast service, start and complete the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
Further, UE completes according to measuring criterion and comprises the measurement of adjacent area: UE starts according to measuring criterion and completes the measurement to adjacent area; Described measuring criterion is S criterion; The measuring period of described UE is the maximum that agreement specifies;
According to the difference of measuring period, community can be divided into frequency, alien frequencies, UTRA, global system for mobile communications (GSM, and code division multiple access (CDMA GlobalSystemforMobileCommunication), CodeDivisionMultipleAccess) five large classes, the measuring period of its correspondence is respectively T
intra, T
inter, T
utra, T
gsmand T
cmda.In embodiments of the present invention, the various nearby region measurement cycle is referred to as Tmeasurement.
Further, described UE receives and before preserving the system message of Serving cell, described method also comprises: the cell reselection evaluation duration Treselection in network side configuration-system message equals the product of cell reselection parameters Tn and measurement period T measurement, i.e. Treselection=Tn*Tmeasurement; Described Tn is integer;
Here, it should be noted that, network side only needs to perform during first Application the inventive method to the configuration of cell reselection evaluation duration, can directly apply later.
Step 302:UE determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, be initiated to the gravity treatment of described adjacent area; Or UE determines to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, is initiated to the gravity treatment of described adjacent area;
Here, described nearby region measurement value meets cell reselection threshold value and comprises: adjacent area S value Srxlev is greater than gravity treatment threshold T hresh, and need meet Srxlev for low priority community simultaneously and be less than low priority service community threshold T hreshServingLow;
Described UE determines to complete N the measurement to adjacent area continuously, and the nearby region measurement value that described measurement obtains all meets cell reselection threshold value and comprises:
UE has determined once to the measurement of adjacent area, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is 1 that UE record completes the number of times i of nearby region measurement continuously, to complete the one-shot measurement of described adjacent area and the nearby region measurement value that described measurement obtains meets cell reselection threshold value at every turn later, i value adds 1, when UE completes measuring for i time adjacent area continuously, i value equals N, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is N that UE record completes the number of times of nearby region measurement continuously; Wherein, N is positive integer, and i is integer, and i ∈ [0, N].
Further, UE determines to complete i the measurement to adjacent area continuously, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, namely i value resets, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein, i ∈ [0, N].
Fig. 4 is the method flow schematic diagram of the embodiment of the present invention two cell reselection, and as shown in Figure 4, the method for the present embodiment cell reselection comprises:
Step 401:UE receives and preserves the system message of Serving cell, completes the measurement to Serving cell;
This step specifically comprises: it is resident and enter Idle state that UE completes community, receives and preserves the system message of cell broadcast service, start and complete the measurement to Serving cell; Wherein, described system message comprises the cell reselection parameters Tn carrying out co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
Before this step, described method also comprises: the cell reselection evaluation duration Treselection in network side configuration-system message equals the product of cell reselection parameters Tn and measurement period T measurement, i.e. Treselection=Tn*Tmeasurement; Described Tn is integer;
Here, it should be noted that, network side only needs to perform during first Application the inventive method to the configuration of cell reselection evaluation duration, can directly apply later.
Step 402:UE starts according to measuring criterion and completes once to the measurement of adjacent area;
Here, described measuring criterion is S criterion; The measuring period of described UE is the maximum that agreement specifies;
According to the difference of measuring period, community can be divided into frequency, alien frequencies, UTRA, GSM, and the large class of CDMA five, and the measuring period of its correspondence is respectively T
intra, T
inter, T
utra, T
gsmand T
cmda.In embodiments of the present invention, the various nearby region measurement cycle is referred to as Tmeasurement.
Step 403: judge whether nearby region measurement value meets cell reselection threshold value, if met, performs step 404; If do not met, UE record is completed continuously the value of the number of times i of nearby region measurement is reset, and perform step 402;
This step specifically comprises: judge that adjacent area S value Srxlev is greater than gravity treatment threshold T hresh, and for low priority community meet simultaneously Srxlev be less than low priority service community threshold T hreshServingLow time, determine whether nearby region measurement value meets cell reselection threshold value, otherwise nearby region measurement value does not meet cell reselection threshold value.
Step 404: judge whether Tn value is 0, if be not 0, performs step 405; If be 0, perform step 406.
Step 405: judge that whether completing continuously the number of times i of nearby region measurement of record be identical with Tn value, if identical, performs step 406; If different, i value added 1, and performs step 402;
This step specifically comprises: UE has determined once to the measurement of adjacent area, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is 1 that UE record completes the number of times i of nearby region measurement continuously, to complete the one-shot measurement of described adjacent area and the nearby region measurement value that described measurement obtains meets cell reselection threshold value at every turn later, i value adds 1, when UE completes measuring for i time adjacent area continuously, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is i that UE record completes the number of times of nearby region measurement continuously, and judge that whether the value of i is identical with Tn value, here i is integer, and initial value is 0, and i ∈ [0, N].
In the present embodiment, Tn value can be 3, is 3 when UE record completes the frequency n of nearby region measurement continuously, and when the described nearby region measurement value measuring acquisition meets cell reselection threshold value, can be initiated to the gravity treatment of described Target cell.
Step 406:UE is initiated to the gravity treatment of described adjacent area.
Step 407: terminate this handling process.
Fig. 5 is the device composition structural representation of embodiment of the present invention cell reselection, and as shown in Figure 5, the device composition of embodiment of the present invention cell reselection comprises: measurement module 51, determination module 52 and cell reselection module 53; Wherein,
Described measurement module 51, for completing the measurement to adjacent area according to measuring criterion;
Described determination module 52, for determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, trigger described cell reselection module 53; Or determine to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, triggers described cell reselection module 53; Wherein, N is positive integer;
Described cell reselection module 53, for being initiated to the gravity treatment of described adjacent area;
Here, described nearby region measurement value meets cell reselection threshold value and comprises: adjacent area S value Srxlev is greater than gravity treatment threshold T hresh, and need meet Srxlev for low priority community simultaneously and be less than low priority service community threshold T hreshServingLow;
Described measuring criterion is S criterion; The measuring period of described UE is the maximum that agreement specifies;
According to the difference of measuring period, community can be divided into frequency, alien frequencies, UTRA, global system for mobile communications (GSM, and code division multiple access (CDMA GlobalSystemforMobileCommunication), CodeDivisionMultipleAccess) five large classes, the measuring period of its correspondence is respectively T
intra, T
inter, T
utra, T
gsmand T
cmda.In embodiments of the present invention, the various nearby region measurement cycle is referred to as Tmeasurement.
Further, described measurement module 51, also for receiving and preserving the system message of Serving cell, completes the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection; Cell reselection evaluation duration Treselection in described system message equals the product of cell reselection parameters Tn and measurement period T measurement, i.e. Treselection=Tn*Tmeasurement; Described Tn is integer.
Described determination module 52 is determined to complete N the measurement to adjacent area continuously, the described nearby region measurement value measuring acquisition all meets cell reselection threshold value and comprises: described determination module 52 has been determined once to the measurement of adjacent area, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is 1 that record completes the number of times i of nearby region measurement continuously, to complete the one-shot measurement of described adjacent area and the nearby region measurement value that described measurement obtains meets cell reselection threshold value at every turn later, i value adds 1, measure when completing i time to adjacent area continuously, i value equals N, and the described nearby region measurement value that obtains measured is when meeting cell reselection threshold value, it is N that UE record completes the number of times of nearby region measurement continuously, wherein N is positive integer, and i is integer, and i ∈ [0, N].
Further, described determination module, also complete i the measurement to adjacent area continuously for determining, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein, i ∈ [0, N].
Device described in the embodiment of the present invention is positioned on UE, described measurement module 51, determination module 52 and cell reselection module 53 above, all can by the central processing unit (CPU in UE, or digital signal processor (DSP CentralProcessingUnit), DigitalSignalProcessor) or field programmable gate array (FPGA, FieldProgrammableGateArray) realize.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (6)
1. a method for cell reselection, is characterized in that, described method comprises:
User equipment (UE) completes the measurement to adjacent area according to measuring criterion;
UE determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, be initiated to the gravity treatment of described adjacent area; Or,
UE determines to complete N the measurement to adjacent area continuously, and the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, is initiated to the gravity treatment of described adjacent area; Wherein N is positive integer.
2. method according to claim 1, is characterized in that, before described UE completes the measurement to adjacent area according to measuring criterion, described method also comprises: UE receives and preserves the system message of Serving cell, completes the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
3. method according to claim 1 or 2, it is characterized in that, described method also comprises: UE determines to complete i the measurement to adjacent area continuously, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein i ∈ [0, N].
4. a device for cell reselection, is characterized in that, described device comprises: measurement module, determination module and cell reselection module; Wherein,
Described measurement module, for completing the measurement to adjacent area according to measuring criterion;
Described determination module, for determine that nearby region measurement value meets cell reselection threshold value and cell reselection parameters Tn is zero time, trigger described cell reselection module; Or determine to complete N the measurement to adjacent area continuously, the nearby region measurement value that described measurement obtains all meets cell reselection threshold value, and when the value of described N is identical with the value of corresponding cell reselection parameters Tn, triggers described cell reselection module; Wherein N is positive integer;
Described cell reselection module, for being initiated to the gravity treatment of described adjacent area.
5. device according to claim 4, is characterized in that, described measurement module, also for receiving and preserving the system message of Serving cell, completes the measurement to Serving cell; Wherein, described system message comprises and carries out cell reselection parameters corresponding to co-frequency cell gravity treatment, alien-frequency district gravity treatment and different standard cell reselection.
6. device according to claim 4 or 5, it is characterized in that, described determination module, also complete i the measurement to adjacent area continuously for determining, but when the nearby region measurement value measuring acquisition for i-th time does not meet cell reselection threshold value, UE removes the number of times to nearby region measurement of record, and restarts the measurement of adjacent area and the record to nearby region measurement number of times; Wherein i ∈ [0, N].
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410407913.5A CN105357722B (en) | 2014-08-18 | 2014-08-18 | A kind of method and device of cell reselection |
| PCT/CN2014/091259 WO2015117450A1 (en) | 2014-08-18 | 2014-11-17 | Cell reselection method and device, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410407913.5A CN105357722B (en) | 2014-08-18 | 2014-08-18 | A kind of method and device of cell reselection |
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| CN105357722A true CN105357722A (en) | 2016-02-24 |
| CN105357722B CN105357722B (en) | 2019-09-13 |
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| WO (1) | WO2015117450A1 (en) |
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| CN108260174A (en) * | 2016-12-29 | 2018-07-06 | 联芯科技有限公司 | The method for carrying out cell reselection under system in fast-moving environment in cellular telecommunication network |
| CN113453313A (en) * | 2021-05-31 | 2021-09-28 | 翱捷科技股份有限公司 | Method and device for quickly residing Internet of things equipment in and out of power saving mode |
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| CN101572927A (en) * | 2009-06-12 | 2009-11-04 | 深圳华为通信技术有限公司 | Cell reselection method, apparatus and system thereof |
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- 2014-11-17 WO PCT/CN2014/091259 patent/WO2015117450A1/en active Application Filing
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| CN101053180A (en) * | 2005-01-05 | 2007-10-10 | Sk电信有限公司 | Method of hand-over in the mixed network of asynchronous communication network and synchronous communication network |
| CN101572927A (en) * | 2009-06-12 | 2009-11-04 | 深圳华为通信技术有限公司 | Cell reselection method, apparatus and system thereof |
| CN102595528A (en) * | 2012-03-21 | 2012-07-18 | 武汉邮电科学研究院 | Switching judgment method based on channel quality indication (CQI) enhancement |
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| CN108260174A (en) * | 2016-12-29 | 2018-07-06 | 联芯科技有限公司 | The method for carrying out cell reselection under system in fast-moving environment in cellular telecommunication network |
| CN113453313A (en) * | 2021-05-31 | 2021-09-28 | 翱捷科技股份有限公司 | Method and device for quickly residing Internet of things equipment in and out of power saving mode |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015117450A1 (en) | 2015-08-13 |
| CN105357722B (en) | 2019-09-13 |
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