CN102026271B - 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 PDFInfo
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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
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of control method and system that realizes between frequency, measures between system based on LTE framework.
Background technology
LTE (Long Term Evolution: Long Term Evolution) system refers to the evolution items that 3GPP (ThreeGeneration Partnership Project: third generation partner program) proposes for the third generation (3G) mobile communication technology, be mainly used in improving the performance of Cell Edge User, improve cell capacity and reduce system delay etc.
In the practical application of LTE system, when UE (User Equipment: subscriber equipment) enters alien frequencies adjacent area or different system adjacent area from current Serving cell, UE need to measure the communication quality of adjacent area, and judges whether to carry out to switch or intersystem handover between frequency according to Measurement situation.According to the difference of cell measurement environment, the measurement that UE need to carry out comprises common frequency measurement, different-frequency measure (being inter-frequency measurement) and isosystem measurement (being to measure between system).At present, the UE of non-double-receiver conventionally realizes between inter-frequency measurement and system and measuring by the pattern of interval measurement, its concrete grammar is: the measurement interval of LTE systemic presupposition regular length, UE can carry out common frequency measurement at ordinary times, can receive control command or data from eNB (eNodeB: evolution base station) during measurement; Activate while measuring interval, the signal quality of the alien frequencies frequency that the receiver of UE is specified monitoring is to carry out inter-frequency measurement, or the signal quality of the different system frequency that the receiver of UE is specified monitoring is to measure between executive system, in this fixing measurement interim, UE can not receive from the control command of eNB or data.In existing interval measurement pattern, if UE initiates the alien frequencies of measurement or the frequency number of different system is more, not only can affect eNB for the data interaction between function control and eNB and the UE of UE, and because the reasons such as the frequent transitions of UE receiver between pilot frequency point, different system frequency cause the battery expense of UE larger.
Summary of the invention
Technical problem to be solved by this invention is, a kind of control method and system that realizes between frequency, measures between system based on LTE framework is provided, realize UE for the flexible control of measuring between inter-frequency measurement and/or system, ensure that eNB, for the data interaction between function control and eNB and the UE of UE, has effectively reduced the battery expense of UE.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of control method that realizes between frequency, measures between system based on LTE framework is provided, has comprised the following steps: eNB is to UE sending measuring open configuration information; ENB receives after the measurement open event that UE triggers based on described measurement open configuration information, issues and between inter-frequency measurement open command and/or system, measures open command and configuration information is closed in corresponding measurement to UE.
If the measurement environment of UE is alien frequencies adjacent area, when eNB is to 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 thresholding triggering based on described inter-frequency measurement is inter-frequency measurement open event.
If the measurement environment of UE is different system adjacent area, when eNB is to UE sending measuring open configuration information, described measurement open configuration information comprises between system to be measured and opens thresholding, and the measurement open event of UE based on measuring the triggering of unlatching thresholding between described system is to measure open event between system.
If the measurement environment of UE comprises alien frequencies adjacent area and different system adjacent area, when eNB is to UE sending measuring open configuration information, described measurement open configuration information comprises default measurement unlatching thresholding, and the measurement open event that UE opens thresholding triggering based on described default measurement is to measure open event between inter-frequency measurement open event and/or system.
Described default measurement is opened thresholding and is got the higher value among measurement unlatching thresholding between inter-frequency measurement unlatching thresholding and system.
Described measurement open configuration information comprises at least one default unlatching thresholding of measuring.
ENB issues and between inter-frequency measurement open command and/or system, measures open command and corresponding measurement is closed after configuration information to UE, further comprising the steps of: the measurement result event that eNB reports according to UE is switched or intersystem handover between starting frequently, or the measurement close event of closing configuration information triggering based on described measurement according to UE is closed measurement.
Further, eNB according to UE reporting measurement result event or UE trigger the sequencing of measuring close event start frequently between switching, intersystem handover or close measurement.
The present invention also provides a kind of control system that realizes between frequency, measures between system based on LTE framework, comprises; Be arranged on the measurement open configuration module of eNB side and open respond module; Measuring open configuration module is used for to UE sending measuring open configuration information; Open the measurement open event that respond module triggers based on described measurement open configuration information for receiving UE, and issue and between inter-frequency measurement open command and/or system, measure open command and configuration information is closed in corresponding measurement to UE.
Further, also comprise the measurement control module that is arranged on eNB side; Measure control module and be used for starting between frequency and switching or intersystem handover according to the measurement result event from UE, or the measurement close event of closing 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 flexibly UE to carry out measuring between inter-frequency measurement and/or system, compared with prior art, the present invention just starts between inter-frequency measurement and/or system and measures where necessary, therefore reduce or avoided UE negative effect that normal communication is caused measuring that interim cannot be accepted the control of eNB and data, reduce unnecessary space interface signaling and battery expense simultaneously, ensured normally carrying out of communication, improved the service quality of operator.
Further, configuration information is closed in the measurement that eNB can issue different measurement instructions and correspondence to UE according to the decision of the factor such as measurement environment, control strategy, receive after 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.
Brief description of the drawings
Fig. 1 the present invention is based on a kind of embodiment flow chart of control method that LTE framework is realized between frequency, measured between system;
Fig. 2 is a kind of measurement environment that only has alien frequencies adjacent area in LTE system;
Fig. 3 is the control flow chart that the present invention is directed to measurement environment shown in Fig. 2;
Fig. 4 is a kind of measurement environment that only has different system adjacent area in LTE system;
Fig. 5 is the control flow chart that the present invention is directed to measurement environment shown in Fig. 4;
Fig. 6 is a kind of measurement environment that simultaneously has alien frequencies adjacent area and different system adjacent area in LTE system;
Fig. 7 is the control flow chart that the present invention is directed to measurement environment shown in Fig. 6;
Fig. 8 the present invention is based on a kind of embodiment schematic diagram of control method that LTE framework is realized between frequency, measured between system.
Embodiment
In the control method and system of the present invention is based between the realization frequently of LTE framework, measuring between system, eNB controls flexibly UE and carries out measuring between inter-frequency measurement and/or system based on measuring measurement open event that open configuration information triggers according to UE, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
First, existing LTE system between frequency, the standard agreement measured between system generally comprises following several event:
A2 event: measure open event.Be eNB while receiving the common frequency measurement A2 event that UE reports, issue between inter-frequency measurement open command or system and measure open command to UE, also can issue between inter-frequency measurement open command and system simultaneously and measure open command to UE as the case may be.
For different measurement environment, A2 event comprises between inter-frequency measurement open event and system measures open event.
ENB is the measurement open configuration information of UE configure trigger A2 event in advance, opens thresholding comprising measuring, and the signal quality that UE detects in common frequency measurement process reaches this measurement door capable of being opened and triggers corresponding A2 event in limited time, for example, and A2_Thresh
iFfor the inter-frequency measurement that triggers inter-frequency measurement open event is opened thresholding, A2_Thresh
iRATmeasure and open thresholding for measuring between triggering system between the system of open event.Various thresholdings can trigger with RSRP or RSRQ.
A1 event: measure close event.Be that eNB closes corresponding measurement while receiving the common frequency measurement A1 event that UE reports.
For different measurement environment, A1 event comprises between inter-frequency measurement close event and system measures close event.
ENB can be in advance for configuration information be closed in the measurement of UE configure trigger A1 event, it is corresponding that the control command that configuration information issues with eNB is closed in this measurement, close thresholding comprising measurement, be that signal quality that UE detects in common frequency measurement process reaches and when thresholding is closed in this measurement, triggers corresponding A1 event, for example, A1_Thresh
iFfor the inter-frequency measurement that triggers inter-frequency measurement close event is closed thresholding, A1_Thresh
iRATmeasure and close thresholding for measuring between triggering system between the system of close event.
After measuring between UE execution inter-frequency measurement and/or system, can report corresponding result event to eNB, result event comprises A3 event and B2 event.
A3 event: inter-frequency measurement result event, eNB switches between receiving and starting frequently after the A3 event that UE reports.
B2 event: measurement result event between system, eNB starts intersystem handover after receiving the B2 event that UE reports.
A kind of flow process of the control method of as shown in Figure 1, the present invention is based between the realization frequently of LTE framework, measuring between system comprises the following steps:
Step S100:eNB is to UE sending measuring open configuration information, be that eNB is measurement open configuration information corresponding to UE configuration A2 event in advance, according to the difference of measurement environment, this measurement open configuration information comprises measuring opens thresholding, for example, when the measurement environment of UE only exists alien frequencies adjacent area, measure open configuration information and comprise A2_Thresh
iF, when the measurement environment of UE only exists different system adjacent area, measure open configuration information and comprise A2_Thresh
iRAT.
Step S101:eNB receives UE based on measuring after the measurement open event (being common frequency measurement A2 event) of open configuration information triggering, issue and between inter-frequency measurement open command and/or system, measure open command to UE according to factors such as concrete measurement environment, state of affairs, control strategies, and configuration information is closed in corresponding measurement, for example, when eNB issues inter-frequency measurement open command to UE, issue simultaneously and comprise A1_Thresh
iFmeasurement close configuration information, thereby control UE carry out inter-frequency measurement; ENB when measuring open command between UE sending system, issues simultaneously and comprises A1_Thresh
iRATmeasurement close configuration information, measure thereby control between UE executive system.
Step S102:UE carries out corresponding measurement, and reporting measurement result event (for example A3 event or B2 event), or triggers and measure close event (being A1 event).
The measurement result event that step S103:eNB reports according to UE is switched or intersystem handover between starting frequently, or the A1 event of closing configuration information triggering based on measurement according to UE is closed measurement.Now, eNB can trigger the sequencing of A1 event according to UE reporting measurement result event or UE, or can start switching or close measurement according to other control strategies.For example, in step S102, if first UE reports A3 event after carrying out inter-frequency measurement, eNB switches between starting frequently, if first UE reports B2 event, eNB starts intersystem handover, if first UE triggers A1 event based on A1_ThreshIF, eNB closes measurement.
Fig. 2 is a kind of measurement environment that only has alien frequencies adjacent area in LTE system, and now the Serving cell of UE is corresponding to carrier frequency 1, and alien frequencies adjacent area, corresponding to carrier frequency 2, comprises the following steps for the control flow of measurement environment shown in Fig. 2 in Fig. 3:
Step S200:UE sets up after RRC2 (Radio Resource Control: Radio Resource control) connection, and eNB is to UE sending measuring open configuration information, and this measurement open configuration information comprises A2_Thresh
iF.
Step S201:UE moves to alien frequencies adjacent area, and while entering in Fig. 2 the region between two adjacent areas, along with the decline of Serving cell signal quality, UE is based on A2_Thresh
iFtrigger A2 event, this A2 event is inter-frequency measurement open event.
Step S202:eNB receives after the inter-frequency measurement open event that UE triggers, and issue inter-frequency measurement open command to UE, and measurement corresponding to this instruction close configuration information, this measurement is closed configuration information and comprised A1_Thresh
iF.
Step S203:UE receives after inter-frequency measurement open command, starts to carry out inter-frequency measurement, and reports A3 event or based on A1_Thresh to eNB
iFtrigger A1 event.
The A3 event that step S204:eNB reports according to UE is switched between starting frequently, or closes measurement according to A1 event.Preferably, if eNB first receives the A3 event that UE reports, eNB switches between starting frequently; If eNB first receives the A1 event that UE triggers, eNB closes inter-frequency measurement, controls UE and stops measuring.
Fig. 4 is that in LTE system, only to have different system adjacent area be a kind of measurement environment of GSM (Global System for MobileCommunications: global system for mobile communications) adjacent area, in Fig. 5, comprises the following steps for the control flow of measurement environment shown in Fig. 4:
Step S300:UE sets up after RRC connection, and eNB is to UE sending measuring open configuration information, and this measurement open configuration information comprises A2_Thresh
iRAT, for GSM adjacent area, also can be by A2_Thresh
iRATbe designated A2_Thresh
gSM.
Step S301:UE moves to different system adjacent area, and while entering in Fig. 4 the region between two adjacent areas, along with the decline of Serving cell signal quality, UE is based on A2_Thresh
iRATtrigger A2 event, this A2 event is to measure open event between system.
Step S302:eNB receives between the system that UE triggers and measures after open event, and between UE sending system, measure open command, and measurement corresponding to this instruction close configuration information, this measurement is closed configuration information and comprised A1_Thresh
iRAF, for GSM adjacent area, also can be by A1_Thresh
iRATbe designated A1_Thresh
gSM.
Between step S303:UE receiving system, measure after open command, start to measure between executive system, and report B2 event to eNB, or based on A1_Thresh
gSMtrigger A1 event.
The B2 event that step S304:eNB reports according to UE starts intersystem handover, or closes measurement according to A1 event.Preferably, if eNB first receives the B2 event that UE reports, eNB starts intersystem handover; If eNB first receives the A1 event that UE triggers, eNB closes between corresponding system and measures, and controls UE and stops measuring.
Fig. 6 is that in LTE system, to have alien frequencies adjacent area and different system be a kind of measurement environment of WCDMA (Wideband CodeDivision Multiple Access: Wideband Code Division Multiple Access (WCDMA)) adjacent area simultaneously.Wherein, different system WCDMA adjacent area comprises Liang Ge LTE community, and the Serving cell of UE is corresponding to carrier frequency 1, and alien frequencies adjacent area, corresponding to carrier frequency 2, comprises the following steps for the control flow of measurement environment shown in Fig. 6 in Fig. 7:
Step S400:UE sets up after RRC connection, eNB is to UE sending measuring open configuration information, this measurement open configuration information comprises the default unlatching thresholding of measuring, UE is opened after thresholding triggering A2 event based on this default measurement, eNB issues and between inter-frequency measurement open command and/or system, measures open command to UE according to factors such as concrete measurement environment, state of affairs, control strategies again, and configuration information is closed in corresponding measurement.The default numerical value of opening thresholding of measuring can be determined according to specific needs flexibly by eNB, or one preferred embodiment in, default measurement opened the desirable A2_Thresh of thresholding
iFand A2_Thresh
iRATamong higher value, for WCDMA system, also desirable MAX (A2_Thresh
iF, A2_Thresh
wCDMA).In order further to strengthen the flexibility of configuration, measure open configuration information and also can comprise at least one default unlatching thresholding of measuring, UE is triggered respectively after A2 event based at least one default unlatching thresholding of measuring, determine whether to control UE by eNB and carry out measurement, and carry out which kind of measurement.
When step S401:UE moves to edge, Serving cell, or while closing on WCDMA system, along with the decline of Serving cell signal quality, UE is based on the default thresholding triggering A2 event of opening of measuring, this A2 event may be inter-frequency measurement open event, also may measure open event between system.
Step S402:eNB receives after the A2 event of UE triggering, can independently determine to issue between inter-frequency measurement open command or system and measure open command to UE, and configuration information is closed in corresponding measurement, if cannot determine the priority of goal systems/adjacent area, also can issue simultaneously and between inter-frequency measurement open command and system, measure open command and default measurement closed thresholding, present embodiment adopts the mode that simultaneously issues two kinds of instructions.Default measurement is closed and defaultly in the method to set up of thresholding and step S400 is opened that to measure the mode of thresholding similar, for example, get A1_Thresh
iFand A1_Thresh
iRATamong higher value, for WCDMA system, also desirable MAX (A1_Thresh
iF, A1_Thresh
wCDMAone step strengthens the flexibility of configuration, measures to close configuration information and also can comprise that at least one default measurement closes thresholding, makes UE close thresholding and trigger respectively after A1 event based at least one default measurement, determines whether close measurement by eNB.
Step S403:UE receives between inter-frequency measurement open command and system and measures after open command, starts to carry out between inter-frequency measurement and system and measures, and report A3 event, B2 event or close thresholding based on default measurement and trigger A1 event to eNB.
The A3 event that step S404:eNB reports according to UE is switched between starting frequently, or starts intersystem handover according to B2 event, or closes measurement according to A1 event.Preferably, if eNB first receives the A3 event that UE reports, eNB switches between starting frequently; If eNB first receives the B2 event that UE reports, eNB starts intersystem handover; If eNB first receives the A1 event that UE triggers, eNB closes corresponding measurement.
As shown in Figure 8, of the present invention realize frequently based on LTE framework between, the control system measured between system comprise be arranged on eNB side measurement open configuration module 10, open respond module 20, and measure control module 30.
Wherein, measure open configuration module 10 for to UE sending measuring open configuration information, make UE trigger A2 event based on measuring open configuration information.
Open respond module 20 for receiving the A2 event of UE based on measuring open configuration information and triggering, and for different measurement environment, issue and between inter-frequency measurement open command and/or system, measure open command and configuration information is closed in corresponding measurement to UE.
Measurement control module 30 is switched or intersystem handover between starting frequently according to the measurement result event from UE, or the A1 event of closing configuration information triggering based on measurement according to UE is closed measurement.
The control method of the present invention is based between the realization frequently of LTE framework, measuring between system and system make eNB carry out measuring between inter-frequency measurement or system according to the flexible UE of control such as measurement environment and control strategy, eNB receives after the reporting information of UE, can make as the case may be rational measurement instruction and switch decision etc., thereby the measurement of UE is control effectively.Compared with the pattern of interval measurement in prior art, technical scheme provided by the invention just starts between inter-frequency measurement and/or system and measures where necessary, therefore reduce or avoided UE negative effect that normal communication is caused measuring that interim cannot be accepted the control of eNB and data, unnecessary space interface signaling and battery expense have been reduced simultaneously, thereby ensure normally carrying out of communication, improved the service quality of operator.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For 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. a control method that realizes between frequency, measures between system based on LTE framework, is characterized in that, comprises the following steps:
ENB is to UE sending measuring open configuration information;
ENB receives after the measurement open event that UE triggers based on described measurement open configuration information, issues and between inter-frequency measurement open command and/or system, measures open command and configuration information is closed in corresponding measurement to UE.
2. method according to claim 1, it is characterized in that: if the measurement environment of UE is alien frequencies adjacent area, when eNB is to 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 thresholding triggering based on described inter-frequency measurement is inter-frequency measurement open event.
3. method according to claim 1, it is characterized in that: if the measurement environment of UE is different system adjacent area, when eNB is to UE sending measuring open configuration information, described measurement open configuration information comprises between system to be measured and opens thresholding, and the measurement open event of UE based on measuring the triggering of unlatching thresholding between described system is to measure open event between system.
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, when eNB is to UE sending measuring open configuration information, described measurement open configuration information comprises default measurement unlatching thresholding, and the measurement open event that UE opens thresholding triggering based on described default measurement is to measure open event between inter-frequency measurement open event and/or system.
5. method according to claim 4, is characterized in that: described default measurement is opened thresholding and got the higher value among measurement unlatching thresholding between inter-frequency measurement unlatching thresholding and system.
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. according to the method described in any one in claim 1 to 6, it is characterized in that: eNB issues and between inter-frequency measurement open command and/or system, measures open command and corresponding measurement is closed after configuration information to UE, further comprising the steps of: the measurement result event that eNB reports according to UE is switched or intersystem handover between starting frequently, or the measurement close event of closing configuration information triggering based on described measurement according to UE is closed measurement.
8. method according to claim 7, is characterized in that: eNB is according to switching, intersystem handover between the sequencing startup frequently of UE reporting measurement result event or UE triggering measurement close event or close measurement.
9. a control system that realizes between frequency, measures between system based on LTE framework, is characterized in that, comprises; Be arranged on the measurement open configuration module of eNB side and open respond module;
Measuring open configuration module is used for to UE sending measuring open configuration information;
Open the measurement open event that respond module triggers based on described measurement open configuration information for receiving UE, and issue and between inter-frequency measurement open command and/or system, measure open command and configuration information is closed in corresponding measurement to UE.
10. system according to claim 9, is characterized in that: also comprise the measurement control module that is arranged on eNB side;
Measure control module and be used for starting between frequency and switching or intersystem handover according to the measurement result event from UE, or the measurement close event of closing 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 |
| 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 |
| GB2512611A (en) * | 2013-04-03 | 2014-10-08 | Sharp Kk | Wireless telecommunication cell detection technique |
| CN105376808A (en) * | 2015-12-17 | 2016-03-02 | 重庆邮电大学 | Load-based switching method between LTE system and CDMA 2000 system |
| CN112243272B (en) * | 2019-07-16 | 2022-12-16 | 中国移动通信集团浙江有限公司 | Pilot frequency switching method and device |
| CN112702770B (en) * | 2019-10-23 | 2022-05-13 | 上海华为技术有限公司 | Switching control method and related equipment |
| EP4072193A4 (en) * | 2019-12-30 | 2022-12-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Measurement control method, network device, and terminal device |
| CN111901810A (en) * | 2020-04-09 | 2020-11-06 | 中兴通讯股份有限公司 | Measuring method, device, equipment and storage medium |
| 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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