CN102026271A - LTE architecture-based control method and system for implementing inter-frequency and inter-system measurement - Google Patents

LTE architecture-based control method and system for implementing inter-frequency and inter-system measurement Download PDF

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CN102026271A
CN102026271A CN2009101902242A CN200910190224A CN102026271A CN 102026271 A CN102026271 A CN 102026271A CN 2009101902242 A CN2009101902242 A CN 2009101902242A CN 200910190224 A CN200910190224 A CN 200910190224A CN 102026271 A CN102026271 A CN 102026271A
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CN102026271B (en
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王孝华
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Shanghai Zhongxing Software Co Ltd
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ZTE Corp
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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
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    • 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
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Abstract

The invention discloses a long-term evolution (LTE) architecture-based control method and an LTE architecture-based control system for implementing inter-frequency and inter-system measurement. The method comprises the following steps that: eNB transmits measurement starting configuration information to user equipment (UE); and the eNB receives a measurement starting event triggered by the UE on the basis of the measurement starting configuration information and transmits an inter-frequency measurement starting command and/or an inter-system measurement starting command and corresponding measurement stopping configuration information to the UE. Through the provided technical scheme, the UE flexibly controls the inner-frequency measurement and/or inter-system measurement, the functional control of the UE by the eNB and the data interaction between the eNB and the UE are guaranteed, and the battery overhead of the UE is effectively reduced.

Description

Between realizing frequently based on the LTE framework, the control method and the system of system's measurements
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of realize frequently based on the LTE framework between, the control method and the system of system's measurements.
Background technology
(Long Term Evolution: Long Term Evolution) system is meant 3GPP (ThreeGeneration Partnership Project: the third generation partner program) evolution items that proposes at the third generation (3G) mobile communication technology to LTE, be mainly used in the performance of improving Cell Edge User, improve cell capacity and reduce system delay etc.
In the practical application of LTE system, as UE (User Equi pment: subscriber equipment) when current Serving cell enters alien frequencies adjacent area or different system adjacent area, UE need measure the communication quality of adjacent area, and according to the measurement situation judge whether that needs carry out between frequency switching or system between switch.According to the difference of cell measurement environment, the measurement that UE need carry out comprises common frequency measurement, different-frequency measure (being inter-frequency measurement) and isosystem measurement (being system's measurements).At present, the pattern of interval measurement of the UE of non-double-receiver using usually realizes inter-frequency measurement and system's measurements, its concrete grammar is: the measurement of LTE systemic presupposition regular length at interval, UE can carry out common frequency measurement at ordinary times, can receive (the eNodeB: control command evolution base station) or data from eNB during the measurement; Activate when measuring at interval, the receiver of UE will be monitored the signal quality of alien frequencies frequency of appointment to carry out inter-frequency measurement, perhaps the receiver of UE will be monitored the signal quality of different system frequency of appointment with the executive system measurements, in this fixing measurement interim, UE can not receive from the control command of eNB or data.In the existing interval measurement pattern, if the alien frequencies that the UE initiation is measured or the frequency number of different system are more, not only can influence eNB for the function control of UE and the data interaction between eNB and the UE, and owing to the reasons such as frequent transitions of UE receiver between pilot frequency point, different system frequency causes the battery expense of UE bigger.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of realize frequently based on the LTE framework between, the control method and the system of system's measurements, realized the flexible control of UE for inter-frequency measurement and/or system's measurements, ensured that eNB for the function control of UE and the data interaction between eNB and the UE, has effectively reduced the battery expense of UE.
The technical solution adopted for the present invention to solve the technical problems is:
Provide a kind of realize frequently based on the LTE framework between, the control method of system's measurements, may further comprise the steps: eNB is to UE sending measuring open configuration information; After eNB receives the measurement open event of UE based on described measurement open configuration information triggering, issue inter-frequency measurement open command and/or system's measurements open command and corresponding measurement to UE and close configuration information.
If the measurement environment of UE is the alien frequencies adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises inter-frequency measurement unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described inter-frequency measurement is the inter-frequency measurement open event.
If the measurement environment of UE is different system adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises system's measurements unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described system measurements is system's measurements open event.
If the measurement environment of UE comprises alien frequencies adjacent area and different system adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises default measurement unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described default measurement is inter-frequency measurement open event and/or system's measurements open event.
Described default measurement unlatching thresholding is got the higher value among inter-frequency measurement unlatching thresholding and the system's measurements unlatching thresholding.
Described measurement open configuration information comprises at least one default unlatching thresholding of measuring.
ENB issues after inter-frequency measurement open command and/or system's measurements open command and corresponding measurement close configuration information to UE, further comprising the steps of: switch between switching or system between the measurement result incident that eNB reports according to UE starts frequently, perhaps the measurement close event of closing the configuration information triggering based on described measurement according to UE is closed measurement.
Further, eNB triggers that the sequencing of measuring close event switches between starting frequently, switches between system or closes measurement according to UE reporting measurement result event or UE.
The present invention also provide a kind of realize frequently based on the LTE framework between, the control system of system's measurements, comprise; Be arranged on the measurement open configuration module of eNB side and open respond module; Measuring the open configuration module is used for to UE sending measuring open configuration information; Open respond module and be used to receive the measurement open event that UE triggers based on described measurement open configuration information, and issue inter-frequency measurement open command and/or system's measurements open command and corresponding measurement to UE and close configuration information.
Further, also comprise the measurement control module that is arranged on the eNB side; Switch between switching or system between the measurement control module is used for starting frequently according to the measurement result incident from UE, perhaps the measurement close event of closing the configuration information triggering based on described measurement according to UE is closed measurement.
The invention has the beneficial effects as follows, the present invention makes eNB can control UE flexibly to carry out inter-frequency measurement and/or system's measurements, compared with prior art, the present invention just starts inter-frequency measurement and/or system's measurements where necessary, therefore the negative effect that reduces or avoided UE normal communication to be caused measuring that interim can't be accepted the control of eNB and data, reduce unnecessary space interface signaling and battery expense simultaneously, guaranteed normally carrying out of communication, improved the service quality of operator.
Further, eNB can issue different measurement instruction and corresponding measurement to UE according to the decision of factors such as measurement environment, control strategy and close configuration information, after receiving the reporting information of UE, eNB also can make rational measurement instruction and switch decision etc. in conjunction with concrete condition, has therefore further improved the controllability of eNB for measuring process.
Description of drawings
Fig. 1 be the present invention is based on the LTE framework realize frequently between, a kind of embodiment flow chart of control method of system's measurements;
Fig. 2 is for only there being a kind of measurement environment of alien frequencies adjacent area in the LTE system;
Fig. 3 is the control flow chart that the present invention is directed to measurement environment shown in Figure 2;
Fig. 4 is for only there being a kind of measurement environment of different system adjacent area in the LTE system;
Fig. 5 is the control flow chart that the present invention is directed to measurement environment shown in Figure 4;
Fig. 6 is for existing a kind of measurement environment of alien frequencies adjacent area and different system adjacent area simultaneously in the LTE system;
Fig. 7 is the control flow chart that the present invention is directed to measurement environment shown in Figure 6;
Fig. 8 be the present invention is based on the LTE framework realize frequently between, a kind of embodiment schematic diagram of control method of system's measurements.
Embodiment
The present invention is based on the LTE framework realize frequently between, in the control method and system of system's measurements, eNB controls UE according to UE flexibly based on the measurement open event of measuring the triggering of open configuration information and carries out inter-frequency measurement and/or system's measurements, below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
At first, prior LTE system between frequency, the standard agreement of system's measurements generally comprises following several incident:
A2 incident: measure open event.Be eNB when receiving the common frequency measurement A2 incident that UE reports, issue inter-frequency measurement open command or system's measurements open command, also can issue inter-frequency measurement open command and system's measurements open command simultaneously to UE as the case may be to UE.
At different measurement environment, the A2 incident comprises inter-frequency measurement open event and system's measurements open event.
ENB is the measurement open configuration information of UE configure trigger A2 incident in advance, opens thresholding comprising measuring, and promptly UE detected signal quality in the common frequency measurement process reaches when thresholding is opened in this measurement and triggers corresponding A2 incident, for example, and A2_Thresh IFFor the inter-frequency measurement that triggers the inter-frequency measurement open event is opened thresholding, A2_Thresh IRATFor system's measurements of triggering system measurements open event is opened thresholding.Various thresholdings can use RSRP or RSRQ to trigger.
A1 incident: measure close event.Be that eNB closes corresponding measurement when receiving the common frequency measurement A1 incident that UE reports.
At different measurement environment, the A1 incident comprises inter-frequency measurement close event and system's measurements close event.
ENB can be in advance closes configuration information for the measurement of UE configure trigger A1 incident, it is corresponding with the control command that eNB issues that configuration information is closed in this measurement, close thresholding comprising measurement, be that UE detected signal quality in the common frequency measurement process reaches and triggers corresponding A1 incident when thresholding is closed in this measurement, for example, A1_Thresh IFFor the inter-frequency measurement that triggers the inter-frequency measurement close event is closed thresholding, A1_Thresh IRATFor system's measurements of triggering system measurements close event is closed thresholding.
UE carries out after inter-frequency measurement and/or the system's measurements, can report the corresponding results incident to eNB, and result event comprises A3 incident and B2 incident.
The A3 incident: the inter-frequency measurement result event, promptly eNB switches between receiving and starting frequently after the A3 incident that UE reports.
The B2 incident: system's measurements result event, promptly eNB receives after the B2 incident that UE reports and switches between start-up system.
As shown in Figure 1, the present invention is based on the LTE framework realize frequently between, a kind of flow process of the control method of system's measurements may further comprise the steps:
Step S100:eNB is to UE sending measuring open configuration information, be eNB disposes A2 incident correspondence in advance for UE measurement open configuration information, difference according to measurement environment, this measurement open configuration information comprises measuring opens thresholding, when for example only there is the alien frequencies adjacent area in the measurement environment of UE, measures open configuration information and comprise A2_Thresh IF, when only there is different system adjacent area in the measurement environment of UE, measures open configuration information and comprise A2_Thresh IRAT
After step S101:eNB receives the measurement open event (being common frequency measurement A2 incident) of UE based on the triggering of measurement open configuration information, issue inter-frequency measurement open command and/or system's measurements open command according to factors such as concrete measurement environment, state of affairs, control strategies to UE, and configuration information is closed in corresponding measurement, for example eNB is when UE issues the inter-frequency measurement open command, issues simultaneously to comprise A1_Thresh IFMeasurement close configuration information, thereby control UE carries out inter-frequency measurement; ENB issues simultaneously and comprises A1_Thresh when UE sending system measurements open command IRATMeasurement close configuration information, thereby control UE executive system measurements.
Step S102:UE carries out corresponding the measurement, and reporting measurement result event (for example A3 incident or B2 incident), or triggers and measure close event (being the A1 incident).
Switch between switching or system between the measurement result incident that step S103:eNB reports according to UE starts frequently, perhaps the A1 incident of closing the configuration information triggering based on measurement according to UE is closed measurement.At this moment, eNB can perhaps can start switching or close measurement according to the sequencing of UE reporting measurement result event or UE triggering A1 incident according to other control strategies.For example among the step S102, if UE at first reports the A3 incident after carrying out inter-frequency measurement, then eNB switches between starting frequently, if UE at first reports the B2 incident, then switch between the eNB start-up system, if UE at first triggers the A1 incident based on A1_ThreshIF, then eNB closes measurement.
Fig. 2 is for only there being a kind of measurement environment of alien frequencies adjacent area in the LTE system, the Serving cell of UE is corresponding to carrier frequency 1 at this moment, and the alien frequencies adjacent area is corresponding to carrier frequency 2, and then the control flow at measurement environment shown in Figure 2 may further comprise the steps among Fig. 3:
Step S200:UE sets up RRC, and (Radio Resource Control: Radio Resource control) after the connection, eNB is to UE sending measuring open configuration information, and this measurement open configuration information comprises A2_Thresh IF
Step S201:UE moves to the alien frequencies adjacent area, and when entering among Fig. 2 regional between two adjacent areas, along with the decline of Serving cell signal quality, UE is based on A2_Thresh IFTrigger the A2 incident, this A2 incident is the inter-frequency measurement open event.
Step S202:eNB issues the inter-frequency measurement open command to UE after receiving the inter-frequency measurement open event that UE triggers, and measurement that should instruction correspondence closes configuration information, and this measurement is closed configuration information and comprised A1_Thresh IF
Step S203:UE begins to carry out inter-frequency measurement after receiving the inter-frequency measurement open command, and reports the A3 incident or based on A1_Thresh to eNB IFTrigger the A1 incident.
The A3 incident that step S204:eNB reports according to UE is switched between starting frequently, perhaps closes measurement according to the A1 incident.Preferably, if eNB receives the A3 incident that UE reports earlier, then eNB switches between starting frequently; If eNB receives the A1 incident that UE triggers earlier, then eNB closes inter-frequency measurement, promptly controls UE and stops to measure.
Fig. 4 for only have in the LTE system different system adjacent area be GSM (Global System for MobileCommunications: global system for mobile communications) a kind of measurement environment of adjacent area, the control flow at measurement environment shown in Figure 4 among Fig. 5 may further comprise the steps:
After step S300:UE set up the RRC connection, eNB was to UE sending measuring open configuration information, and this measurement open configuration information comprises A2_Thresh IRAT, at the GSM adjacent area, also can be with A2_Thresh IRATBe designated A2_Thresh GSM
Step S301:UE moves to different system adjacent area, and when entering among Fig. 4 regional between two adjacent areas, along with the decline of Serving cell signal quality, UE is based on A2_Thresh IRATTrigger the A2 incident, this A2 incident is system's measurements open event.
After step S302:eNB received system's measurements open event that UE triggers, to UE sending system measurements open command, and measurement that should instruction correspondence closed configuration information, and this measurement is closed configuration information and comprised A1_Thresh IRAT, at the GSM adjacent area, also can be with A1_Thresh IRATBe designated A1_Thresh GSM
After the step S303:UE receiving system measurements open command, begin the executive system measurements, and report the B2 incident, perhaps based on A1_Thresh to eNB GSMTrigger the A1 incident.
Switch between the B2 incident start-up system that step S304:eNB reports according to UE, perhaps close measurement according to the A1 incident.Preferably, if eNB receives the B2 incident that UE reports earlier, then switch between the eNB start-up system; If eNB receives the A1 incident that UE triggers earlier, then eNB closes corresponding system measurements, promptly controls UE and stops to measure.
Fig. 6 is WCDMA (Wideband CodeDivision Multiple Access: Wideband Code Division Multiple Access (WCDMA)) a kind of measurement environment of adjacent area in the LTE system alien frequencies adjacent area and different system being arranged simultaneously.Wherein, different system WCDMA adjacent area comprises two LTE sub-districts, and the Serving cell of UE is corresponding to carrier frequency 1, and the alien frequencies adjacent area is corresponding to carrier frequency 2, and the control flow at measurement environment shown in Figure 6 among Fig. 7 may further comprise the steps:
After step S400:UE sets up the RRC connection, eNB is to UE sending measuring open configuration information, this measurement open configuration information comprises the default unlatching thresholding of measuring, after making UE open thresholding triggering A2 incident based on this default measurement, eNB issues inter-frequency measurement open command and/or system's measurements open command according to factors such as concrete measurement environment, state of affairs, control strategies to UE again, and configuration information is closed in corresponding measurement.The default numerical value of opening thresholding of measuring can be determined according to concrete needs flexibly by eNB, perhaps a kind of preferred embodiment in, the default measurement opened the desirable A2_Thresh of thresholding IFAnd A2_Thresh IRATAmong higher value, at the WCDMA system, also desirable MAX (A2_Thresh IF, A2_Thresh WCDMA).In order further to strengthen configuration flexibility, measure open configuration information and also can comprise at least one default unlatching thresholding of measuring, after making UE trigger the A2 incident respectively, whether control the UE execution by the eNB decision and measure, and carry out which kind of measurement based at least one default measurement unlatching thresholding.
When step S401:UE moves to the Serving cell edge, when perhaps closing on the WCDMA system, along with the decline of Serving cell signal quality, UE is based on the default thresholding triggering A2 incident of opening of measuring, this A2 incident may be the inter-frequency measurement open event, also may be system's measurements open event.
After step S402:eNB receives the A2 incident of UE triggering, can independently determine to issue inter-frequency measurement open command or system's measurements open command to UE, and configuration information is closed in corresponding measurement, if can't determine the priority of goal systems/adjacent area, also can issue inter-frequency measurement open command and system's measurements open command simultaneously and default the measurement closed thresholding, present embodiment adopts the mode that issues two kinds of instructions simultaneously.It is similar that the default mode of measuring thresholding of opening is closed among the method to set up of thresholding and the step S400 in default measurement, for example gets A1_Thresh IFAnd A1_Thresh IRATAmong higher value, at the WCDMA system, also desirable MAX (A1_Thresh IF, A1_Thresh WCDMA).Close configuration information and can comprise that also at least one default measurement closes thresholding in order further to strengthen configuration flexibility, to measure, UE is closed after thresholding triggers the A1 incident respectively based at least one default measurement, whether close measurement by the eNB decision.
Step S403:UE begins to carry out inter-frequency measurement and system's measurements after receiving inter-frequency measurement open command and system's measurements open command, and reports A3 incident, B2 incident or close thresholding and trigger the A1 incident based on default the measurement to eNB.
The A3 incident that step S404:eNB reports according to UE is switched between starting frequently, perhaps according to switching between B2 incident start-up system, perhaps closes measurement according to the A1 incident.Preferably, if eNB receives the A3 incident that UE reports earlier, then eNB switches between starting frequently; If eNB receives the B2 incident that UE reports earlier, then switch between the eNB start-up system; If eNB receives the A1 incident that UE triggers earlier, then eNB closes corresponding measurement.
As shown in Figure 8, of the present invention realize frequently based on the LTE framework between, the control system of system's measurements comprises the measurement open configuration module 10 that is arranged on the eNB side, opens respond module 20, and measure control module 30.
Wherein, measure open configuration module 10 and be used for, make UE trigger the A2 incident based on measuring open configuration information to UE sending measuring open configuration information.
Open respond module 20 and be used to receive UE, and, issue inter-frequency measurement open command and/or system's measurements open command and corresponding measurement to UE and close configuration information at different measurement environment based on the A2 incident of measuring the triggering of open configuration information.
Switch between switching or system between measurement control module 30 is used for starting frequently according to the measurement result incident from UE, perhaps the A1 incident of closing the configuration information triggering based on measurement according to UE is closed measurement.
The present invention is based on the LTE framework realize frequently between, the control method of system's measurements and system make eNB according to measurement environment and control strategy etc. flexibly control UE carry out inter-frequency measurement or system's measurements, after eNB receives the reporting information of UE, can make rational measurement instruction and switch decision etc. as the case may be, thereby the measurement of UE is control effectively.Compare with the pattern of measuring at interval in the prior art, technical scheme provided by the invention just starts inter-frequency measurement and/or system's measurements where necessary, therefore the negative effect that reduces or avoided UE normal communication to be caused measuring that interim can't be accepted the control of eNB and data, unnecessary space interface signaling and battery expense have been reduced simultaneously, thereby guaranteed normally carrying out of communication, improved the service quality of operator.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

  1. One kind realize frequently based on the LTE framework between, the control method of system's measurements, it is characterized in that, may further comprise the steps:
    ENB is to UE sending measuring open configuration information;
    After eNB receives the measurement open event of UE based on described measurement open configuration information triggering, issue inter-frequency measurement open command and/or system's measurements open command and corresponding measurement to UE and close configuration information.
  2. 2. method according to claim 1, it is characterized in that: if the measurement environment of UE is the alien frequencies adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises inter-frequency measurement unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described inter-frequency measurement is the inter-frequency measurement open event.
  3. 3. method according to claim 1, it is characterized in that: if the measurement environment of UE is different system adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises system's measurements unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described system measurements is system's measurements open event.
  4. 4. method according to claim 1, it is characterized in that: if the measurement environment of UE comprises alien frequencies adjacent area and different system adjacent area, then eNB is when UE sending measuring open configuration information, described measurement open configuration information comprises default measurement unlatching thresholding, and the measurement open event that UE opens the thresholding triggering based on described default measurement is inter-frequency measurement open event and/or system's measurements open event.
  5. 5. method according to claim 4 is characterized in that: described default measurement unlatching thresholding is got the higher value among inter-frequency measurement unlatching thresholding and the system's measurements unlatching thresholding.
  6. 6. method according to claim 4 is characterized in that: described measurement open configuration information comprises at least one default unlatching thresholding of measuring.
  7. 7. according to each described method in the claim 1 to 6, it is characterized in that: eNB issues after inter-frequency measurement open command and/or system's measurements open command and corresponding measurement close configuration information to UE, further comprising the steps of: switch between switching or system between the measurement result incident that eNB reports according to UE starts frequently, perhaps the measurement close event of closing the configuration information triggering based on described measurement according to UE is closed measurement.
  8. 8. method according to claim 7 is characterized in that: eNB is according to switching between switching between the sequencing startup frequently of UE reporting measurement result event or UE triggering measurement close event, system or close measurement.
  9. One kind realize frequently based on the LTE framework between, the control system of system's measurements, it is characterized in that, comprise; Be arranged on the measurement open configuration module of eNB side and open respond module;
    Measuring the open configuration module is used for to UE sending measuring open configuration information;
    Open respond module and be used to receive the measurement open event that UE triggers based on described measurement open configuration information, and issue inter-frequency measurement open command and/or system's measurements open command and corresponding measurement to UE and close configuration information.
  10. 10. system according to claim 9 is characterized in that: also comprise the measurement control module that is arranged on the eNB side;
    Switch between switching or system between the measurement control module is used for starting frequently according to the measurement result incident from UE, perhaps the measurement close event of closing the configuration information triggering based on described measurement according to UE is closed measurement.
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CN102869025A (en) * 2011-07-06 2013-01-09 中兴通讯股份有限公司 Measurement processing method and system
CN102905288A (en) * 2012-09-05 2013-01-30 大唐移动通信设备有限公司 Method and device for measurement threshold setting in TD-LTE system
CN102905288B (en) * 2012-09-05 2015-08-05 大唐移动通信设备有限公司 Measurement thresholding method to set up in a kind of TD-LTE system and device
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CN112243272A (en) * 2019-07-16 2021-01-19 中国移动通信集团浙江有限公司 Pilot frequency switching method and device
CN112702770A (en) * 2019-10-23 2021-04-23 上海华为技术有限公司 Switching control method and related equipment
CN112702770B (en) * 2019-10-23 2022-05-13 上海华为技术有限公司 Switching control method and related equipment
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WO2021204120A1 (en) * 2020-04-09 2021-10-14 中兴通讯股份有限公司 Measurement method and apparatus, device, and storage medium
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CN113630854B (en) * 2021-08-12 2024-03-19 惠州Tcl云创科技有限公司 Method, device, terminal equipment and storage medium for reducing power consumption

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