CN101247621B - TD-SCDMA signal estimation method for measuring 3a event and 3a event detecting report method - Google Patents
TD-SCDMA signal estimation method for measuring 3a event and 3a event detecting report method Download PDFInfo
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- CN101247621B CN101247621B CN2008100903065A CN200810090306A CN101247621B CN 101247621 B CN101247621 B CN 101247621B CN 2008100903065 A CN2008100903065 A CN 2008100903065A CN 200810090306 A CN200810090306 A CN 200810090306A CN 101247621 B CN101247621 B CN 101247621B
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Abstract
The invention provides an evaluation method for measuring a TD-SCDMA signal for a 3D incident, and an accepting signal of a current TD-SCDMA sub-district is used for evaluating. The invention also provides a report method for measuring a 3a incident, which includes the following the steps: step A, a incident parameter is established and initialized; step B, a quality evaluation is operated for the accepting signal in the current TD-SCDMA sub-district; step C, the quality evaluation is operated for the accepting signal in each option GSM neighbor sub-district, and a symbol variable for a incident trigger is upgraded; step D, a judgment for the 3a incident is triggered; step E, a report for the 3a incident is sent. The invention has the advantage that a descending signal quality is truly reflected; the method can timely start, quit an incident evaluation under the condition that the signal in the service sub-district is changed; a calculation for a service sub-district and the neighbor substrict is absolutely operated, and time for the service sub-district is priorly calculated; the symbol variable for the incident trigger is increased.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the TD-SCDMA signal estimation method and the 3a event measurement report method that are used to measure the 3a incident, particularly be used for 3a event measurement report method between GSM/TD-SCDMA mode mobile terminal system measurements TD-SCDMA signal estimation method and GSM/TD-SCDMA mode mobile terminal system.
Background technology
Measurement is the function of mobile communication system indispensability, and by measuring command and measurement report, network can be indicated subscriber equipment, and (User Equipment UE) measures.By subscriber equipment initiatively, passive measurement report and UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) wireless access network (UMTS Terrestrial Radio Access Network, UTRAN) Ben Shen measurement function, network can clearly be known the basic condition of system's operation.In this sense, measurement is the lifeline of network.
(Radio Network Controller RNC) can start, revise, stop the multiple measurement behavior of subscriber equipment to radio network controller, also can independently control parallel measuring process.Metrical information sends subscriber equipment to by measuring control messages, after subscriber equipment is received and is measured control messages, according to measuring control information, carry out and measure, and give network reporting measurement result as requested, measurement result sends to network by measurement report message, and wherein measuring process as shown in Figure 1.
For automatic dual-mode terminal, when residing in a certain system, not only can monitor adjacent cell signal variation in the native system, and should be able to monitor the signal quality of the adjacent sub-district of another system, and according to the mode of network requirement initiatively, give network measurement report in time, whether carry out switching between system by the network decision.
In 3GPP standard 25.331, stipulated the method for reporting of the measurement report between a series of different systems, comprise incident 3a, 3b, 3c and 3d, wherein the 3a incident is meant that the signal quality of the system (TD-SCDMA system) that subscriber equipment inserts is lower than a certain thresholding, when simultaneously the signal quality of another system (gsm system) is higher than a certain thresholding, trigger measurement report, network is specified the required relevant parameter of 3a incident.When subscriber equipment resides in the TD-SCDMA sub-district, be in the CELL-DCH state, the signal quality that receives the TD-SCDMA sub-district is lower than certain thresholding, and the signal quality that measures the adjacent sub-district of gsm system can trigger the 3a incident when being higher than certain thresholding.And when network side is received the 3a event report, can initiate TD-SCDMA to the switching between gsm system.
According to standard, the flow process of 3a Event triggered is as follows at present:
1. network sends and measures control messages, configuration 3a incident relevant parameter;
2. subscriber equipment carries out signal quality measured according to networking command to TD-SCDMA system cell and the adjacent sub-district of gsm system;
3. subscriber equipment is according to measurement result, update event parameter TRIGGERED_3A_EVENT;
4. when the GSM neighbour sub-district that increases newly was arranged among the event argument TRIGGERED_3A_EVENT, subscriber equipment triggered the 3a measurement report.
According to standard, the cell signal quality evaluation is needed according to 4 formula, wherein formula 2, and formula 4 is used for calculating the adjacent cell signal quality of assessment GSM, and formula 1 and formula 3 are used for calculating assessment TD_SCDMA cell signal quality.Formula 1 and formula 3 are as follows:
Formula 1:Q
Used≤ T
Used-H
3a/ 2
Formula 3:Q
Used＞T
Used+ H
3a/ 2
In the formula, Q
UsedRefer to the received signal quality on the presently used frequency of subscriber equipment, promptly the signal quality of subscriber equipment all co-frequency cells that can receive comprises Serving cell and co-frequency neighbor cell, T
UsedThe threshold value that refers to the received signal quality on the presently used frequency of subscriber equipment, H
3aRefer to the signal margin of 3a incident, this signal margin is used to limit the reporting quantities of trigger event.
Yet for the TD-SCDMA system, the signal strength signal intensity of the Serving cell that the signal strength signal intensity of co-frequency neighbor cell can not representative of consumer equipment be received, though for example there is the strong co-frequency neighbor cell of some signal, but the received signal intensity of Serving cell is not strong, because the TD-SCDMA system does not exist Active Set, soft handover, therefore co-frequency neighbor cell uses Q for the not contribution of signal quality that subscriber equipment receives
UsedThe signal quality of assessing the TD-SCDMA system is inaccurate, and works if subscriber equipment continues to remain on this Serving cell, and then the quality of the service that is received is insecure.
Summary of the invention
The object of the present invention is to provide a kind of TD-SCDMA signal quality evaluating method that is used for the measurements 3a of mode mobile terminal system incident, be used for accurately assessing the signal quality of TD-SCDMA system, reflect downlink signal quality truly, therefore can in time begin, withdraw from the incident assessment, the calculating of Serving cell and adjacent sub-district is independently carried out.
The present invention is a kind of TD-SCDMA signal estimation method that is used to measure the 3a incident, and the received signal of current TD-SCDMA sub-district is used for assessment.
As the described TD-SCDMA signal quality evaluating method that is used for the measurements 3a of mode mobile terminal system incident of the specific embodiment of the invention, may further comprise the steps:
Step 1, whether the received signal quality of judging current service TD-SCDMA sub-district deducts half poor of the signal margin of 3a incident smaller or equal to the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is to be the step of then carrying out behind the signal evaluation, if judged result for otherwise carry out step 2;
Step 2, whether the received signal quality of judging current service TD-SCDMA sub-district adds half sum of the signal margin of 3a incident greater than the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is for being then carry out step 3, if be judged as otherwise the end of 3a incident;
The object of the present invention is to provide 3a event measurement report method, can accurately assess the signal quality of TD-SCDMA system, reflect downlink signal quality truly, in time begin, withdraw from the incident assessment, the calculating of Serving cell and adjacent sub-district is independently carried out.
A kind of 3a event measurement report method may further comprise the steps: steps A, set up and the initialization event parameter; Step B carries out quality evaluation to the received signal of current service TD-SCDMA sub-district; Step C the received signal of each adjacent sub-district of alternative GSM is carried out quality evaluation, and update event triggers indexed variable; Step D triggers the 3a incident and judges; Step e sends the 3a event report.
As the described 3a event measurement report of specific embodiment of the invention method, wherein, each field initialization with described event argument in the described steps A is an invalid value.
As the described 3a event measurement report of specific embodiment of the invention method, wherein, described step B may further comprise the steps: step B1, whether the received signal quality of judging current service TD-SCDMA sub-district deducts half poor of the signal margin of 3a incident smaller or equal to the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is for being then to carry out described step C, if judged result is otherwise carries out step B2; Step B2, whether the received signal quality of judging current service TD-SCDMA sub-district adds half sum of the signal margin of 3a incident greater than the threshold value of current service TD-SCDMA sub-district received signal quality, if be judged as is then to carry out step B3, if be judged as otherwise this method end; Step B3 withdraws from the assessment of 3a incident, empties event argument, and this method finishes.
As the described 3a event measurement report of specific embodiment of the invention method, wherein, described step C may further comprise the steps: step C1, statement Event triggered indexed variable, and it is initialized as invalid; Step C2 judges whether measurement control order requires base station identity code to confirm, if measurement control order requires base station identity code to confirm then to carry out step C3, does not confirm then to carry out step C3 ' if measurement control order requires base station identity code; Step C3 classifies the adjacent sub-district of GSM that base station identity code obtains confirming as alternative GSM sub-district, and enters step C4; Step C3 ' classifies the adjacent sub-district of whole GSM as alternative GSM sub-district, and enters step C4; Step C4 judges whether to travel through and finishes all alternative GSM sub-districts, if traversal finishes then to enter step C5 as yet, finishes then to enter described step D if travel through; Step C5, at the alternative GSM of next one sub-district, whether the individual character side-play amount sum of the signal quality of judging this alternative GSM sub-district and the signal quality of this alternative GSM sub-district adds half sum of the signal margin of 3a incident more than or equal to the threshold value of alternative GSM sub-district received signal quality, if judged result is for being then to carry out step C6, if judged result is otherwise carries out step C6 '; Step C6 should join in the event argument alternative GSM sub-district, and update event to trigger indexed variable be effective, enter step C4; Step C6 ', whether the individual character side-play amount sum of the signal quality of judging this alternative GSM sub-district and the signal quality of this alternative GSM sub-district deducts half poor of the signal margin of 3a incident less than the threshold value of alternative GSM sub-district received signal quality, if judged result is for being then to carry out step C7, if the formula judged result is otherwise enters step C4; Step C7, step C4 is returned in this alternative GSM sub-district of deletion in described event argument.
As the described 3a event measurement report of specific embodiment of the invention method, wherein, described step D may further comprise the steps: step D1, judge the state of described Event triggered indexed variable, if described Event triggered indexed variable effectively then carries out step D2, if the invalid step D2 ' that then carries out of described Event triggered indexed variable; Step D2 triggers the 3a incident, execution in step E; Step D2 ' does not trigger the 3a incident, and this method finishes.
As the described 3a event measurement report of specific embodiment of the invention method, wherein, described step e may further comprise the steps: step e 1, judge whether measurement control order requires base station identity code to confirm, if measurement control order requires base station identity code to confirm then to carry out step e 2,, measurement control order do not confirm then to carry out step e 2 ' if requiring base station identity code; Step e 2 is filled in event result, indicates that wherein measurement control order requires base station identity code to confirm; Step e 2 ' is filled in event result, indicates that wherein measurement control order does not require the base station identity code affirmation; Step e 3, the measurement result and the additional measurement of filling in measurement report; Step e 4 sends measurement report.
Advantage of the present invention at first is to reflect downlink signal quality more truly, helps to improve network performance, reduces cutting off rate; Secondly under the situation that the Serving cell signal changes, this method can begin, withdraw from the incident assessment in time, avoids frequently sending event report to network, reduces table tennis and switches the probability that takes place; The 3rd, the calculating of Serving cell and adjacent sub-district is independently carried out, and Serving cell is preferential computing time, helps to improve the protocol stack sofeware performance; At last, thus this method increases the time efficiency that the Event triggered indexed variable improves software.
Description of drawings
Figure 1 shows that the schematic diagram of the measuring process between subscriber equipment and the UMTS wireless access network;
Figure 2 shows that the flow chart of the method for reporting of the measurements 3a of mode mobile terminal system incident according to a particular embodiment of the invention;
Figure 3 shows that flow chart according to the steps A of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention;
Figure 4 shows that flow chart according to the step B of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention;
Figure 5 shows that flow chart according to the step C of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention;
Figure 6 shows that flow chart according to the step D of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention; And
Figure 7 shows that flow chart according to the step e of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention.
Embodiment
The invention provides a kind of method for reporting of the mode mobile terminal measurements 3a of system incident, the principle of this method is, replaces the signal strength signal intensity of co-frequency neighbor cell to carry out the assessment of TD-SCDMA signal quality with the signal strength signal intensity of current service TD-SCDMA sub-district.Followingly elaborate according to a particular embodiment of the invention to Fig. 7 with reference to accompanying drawing Fig. 2.
Figure 2 shows that the flow chart of the method for reporting of the measurements 3a of mode mobile terminal system incident according to a particular embodiment of the invention, as shown in Figure 2, the basic step of the method for reporting of the measurements 3a of mode mobile terminal system incident according to a particular embodiment of the invention is: steps A, set up and initialization event parameter TRIGGERED_3A_EVENT; Step B carries out quality evaluation to the received signal of current service cell; Step C the received signal of each adjacent sub-district of alternative GSM is carried out quality evaluation, and update event triggers indexed variable IS_REPORT; Step D triggers the 3a incident and judges; Step e sends the 3a event report.Below in conjunction with accompanying drawing, concrete each step of setting forth according to a particular embodiment of the invention.
Figure 3 shows that flow chart according to the steps A of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention, as shown in Figure 3, described steps A is set up event argument TRIGGERED_3A_EVENT, with each field initialization is invalid value, enters step B then.
The structure of event argument TRIGGERED_3A_EVENT is as follows:
| ?Inter-RAT?cell?id?1 | Inter-RAT?cell?id?2 | …? | Inter-RAT?cell?id?32 |
| ?BCCH?ARFCN?1? | BCCH?ARFCN?2 | …? | BCCH?ARFCN?32 |
Figure 4 shows that as shown in Figure 4, described step B carries out quality evaluation to the received signal of current service cell, comprising according to the flow chart of the step B of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention:
Step B1 with the TD-SCDMA signal strength signal intensity in the signal strength signal intensity replacement used band of current user equipment service TD-SCDMA sub-district, carries out the judgement of formula 1 ', then carries out step C if formula 1 ' is set up, and be false as if formula 1 ' and then carry out step B2,
Q
Scell≤ T
Scell-H
3a/ 2 (formula 1 ')
Wherein, Q
ScellThe received signal quality that refers to current service TD-SCDMA sub-district, T
ScellThe threshold value that refers to current service TD-SCDMA sub-district received signal quality, H
3aThe signal margin that refers to the 3a incident;
Step B2 carries out the judgement of formula 3 ', then carries out step B3 if formula 3 ' is set up, and this specific embodiment finishes if formula 3 ' is false then,
Q
Scell＞T
Scell+ H
3a/ 2 (formula 3 ')
Wherein, Q
ScellThe received signal quality that refers to current service TD-SCDMA sub-district, T
ScellThe threshold value that refers to current service TD-SCDMA sub-district received signal quality, H
3aThe signal margin that refers to the 3a incident;
Step B3 withdraws from the assessment of 3a incident, empties event argument TRIGGERED_3A_EVENT, and this specific embodiment finishes.
Figure 5 shows that flow chart according to the step C of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention, as shown in Figure 5, described step C, received signal to each adjacent sub-district of alternative GSM is carried out quality evaluation, and update event triggering indexed variable IS_REPORT, comprising:
Step C1 states Event triggered indexed variable IS_REPORT, and it is initialized as FALSE;
Step C2, judge whether measurement control order requires base station identity code (Base Station IdentityCode, BSIC) confirm,, do not confirm then to carry out step C3 ' if measurement control order requires base station identity code if measurement control order requires base station identity code to confirm then to carry out step C3;
Step C3 classifies the adjacent sub-district of GSM that base station identity code obtains confirming as alternative cell, and enters step C4;
Step C3 ' classifies the adjacent sub-district of whole GSM as alternative GSM sub-district, and enters step C4;
Step C4 judges whether to travel through and finishes all alternative GSM sub-districts, if traversal finishes then to enter step C5 as yet, finishes then to enter step D if travel through;
Step C5 carries out the judgement of formula 2 to the alternative GSM of next one sub-district, then carries out step C6 if formula 2 is set up, and be false as if formula 2 and then carry out step C6 ',
M
OtherRAT+ CIO
OtherRAT〉=T
OtherRAT+ H
3a/ 2 (formula 2)
Wherein, M
OtherRATThe signal quality that refers to alternative GSM sub-district, CIO
OtherRATThe individual character side-play amount that refers to the signal quality of alternative GSM sub-district, T
OtherRATThe threshold value that refers to alternative GSM sub-district received signal quality, H
3aThe signal margin that refers to the 3a incident;
Step C6 should join among the event argument TRIGGERED_3A_EVENT alternative GSM sub-district, and update event to trigger indexed variable IS_REPORT be TRUE, enter step C4;
Step C6 ' carries out the judgement of formula 4, then carries out step C7 if formula 4 is set up, and being false as if formula 4 then enters step C4,
M
OtherRAT+ CIO
OtherRAT＜T
OtherRAT-H
3a/ 2 (formula 4)
Wherein, M
OtherRATThe signal quality that refers to alternative GSM sub-district, CIO
OtherRATThe individual character side-play amount that refers to the signal quality of alternative GSM sub-district, T
OtherRATThe threshold value that refers to alternative GSM sub-district received signal quality, H
3aThe signal margin that refers to the 3a incident;
Step C7, step C4 is returned in this alternative GSM sub-district of deletion in event argument TRIGGERED_3A_EVENT.
Figure 6 shows that as shown in Figure 6, described step D triggers the 3a incident and judges, comprising according to the flow chart of the step D of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention:
Step D1, decision event triggers the state of indexed variable IS_REPORT, if Event triggered indexed variable IS_REPORT is that TRUE then carries out step D2, if Event triggered indexed variable IS_REPORT is that FALSE then carries out step D2 ';
Step D2 triggers the 3a incident, execution in step E;
Step D2 ' does not trigger the 3a incident, and this method finishes.
Figure 7 shows that as shown in Figure 7, described step e sends the 3a event report, comprising according to the flow chart of the step e of the method for reporting of the measurements 3a of the mode mobile terminal system incident of the specific embodiment of the invention:
Step e 1 judges whether measurement control order requires base station identity code to confirm, if measurement control order requires base station identity code to confirm then to carry out step e 2, does not confirm then to carry out step e 2 ' if measurement control order requires base station identity code;
Step e 2, for event result is " inter-RAT measurement event result " part, " inter-RAT event identity " extended this as " 3a ", " CHOICE BSIC " is " verified BSIC ", and " Inter-RAT cell id " is the Inter-RAT cell id of all sub-districts of being preserved among the event argument TRIGGERED_3A_EVENT.
Step e 2 ', for event result is " inter-RAT measurement event result " part, " inter-RAT event identity " extended this as " 3a ", " CHOICE BSIC " is " non verifiedBSIC ", and " BCCH ARFCN " is the BCCH ARFCN of all sub-districts of being preserved among the event argument TRIGGERED_3A_EVENT;
Step e 4 sends measurement report to network.
More than; be for those skilled in the art understand the present invention, and to the detailed description that the present invention carried out, but can expect; in the scope that does not break away from claim of the present invention and contained, can also make other variation and modification, these variations and revising all in protection scope of the present invention.
Claims (6)
1. a TD-SCDMA signal estimation method that is used to measure the 3a incident is characterized in that, the received signal of current TD-SCDMA sub-district is used for assessment; This method may further comprise the steps:
Step 1, whether the received signal quality of judging current service TD-SCDMA sub-district deducts half poor of the signal margin of 3a incident smaller or equal to the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is to be the step of then carrying out behind the signal evaluation, if judged result for otherwise carry out step 2;
Step 2, whether the received signal quality of judging current service TD-SCDMA sub-district adds half sum of the signal margin of 3a incident greater than the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is for being then carry out step 3, if judged result is otherwise the end of 3a incident;
Step 3 withdraws from the assessment of 3a incident, empties event argument, and the 3a incident finishes.
2. 3a event measurement report method may further comprise the steps:
Steps A is set up and the initialization event parameter;
Step B carries out quality evaluation to the received signal of current service TD-SCDMA sub-district;
Step C the received signal of each adjacent sub-district of alternative GSM is carried out quality evaluation, and update event triggers indexed variable;
Step D triggers the 3a incident and judges;
Step e sends the 3a event report;
Described step B may further comprise the steps:
Step B1, whether the received signal quality of judging current service TD-SCDMA sub-district deducts half poor of the signal margin of 3a incident smaller or equal to the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is for being then to carry out described step C, if judged result is otherwise carries out step B2;
Step B2, whether the received signal quality of judging current service TD-SCDMA sub-district adds half sum of the signal margin of 3a incident greater than the threshold value of current service TD-SCDMA sub-district received signal quality, if judged result is for being then to carry out step B3, if judged result is otherwise this method end;
Step B3 withdraws from the assessment of 3a incident, empties event argument, and this method finishes.
3. 3a event measurement report method as claimed in claim 2 is characterized in that, each field initialization with described event argument in the described steps A is an invalid value.
4. 3a event measurement report method as claimed in claim 2 is characterized in that described step C may further comprise the steps:
Step C1, statement Event triggered indexed variable, and it is initialized as invalid;
Step C2 judges whether measurement control order requires base station identity code to confirm, if measurement control order requires base station identity code to confirm then to carry out step C3, does not confirm then to carry out step C3 ' if measurement control order requires base station identity code;
Step C3 classifies the adjacent sub-district of GSM that base station identity code obtains confirming as alternative GSM sub-district, and enters step C4;
Step C3 ' classifies the adjacent sub-district of whole GSM as alternative GSM sub-district, and enters step C4;
Step C4 judges whether to travel through and finishes all alternative GSM sub-districts, if traversal finishes then to enter step C5 as yet, finishes then to enter described step D if travel through;
Step C5, at the alternative GSM of next one sub-district, whether the individual character side-play amount sum of the signal quality of judging this alternative GSM sub-district and the signal quality of this alternative GSM sub-district adds half sum of the signal margin of 3a incident more than or equal to the threshold value of alternative GSM sub-district received signal quality, if judged result is for being then to carry out step C6, if judged result is otherwise carries out step C6 ';
Step C6 should join in the event argument alternative GSM sub-district, and update event to trigger indexed variable be effective, enter step C4;
Step C6 ', whether the individual character side-play amount sum of the signal quality of judging this alternative GSM sub-district and the signal quality of this alternative GSM sub-district deducts half poor of the signal margin of 3a incident less than the threshold value of alternative GSM sub-district received signal quality, if judged result is for being then to carry out step C7, if the formula judged result is otherwise enters step C4;
Step C7, step C4 is returned in this alternative GSM sub-district of deletion in described event argument.
5. 3a event measurement report method as claimed in claim 2 is characterized in that described step D may further comprise the steps:
Step D1 judges the state of described Event triggered indexed variable, if described Event triggered indexed variable effectively then carries out step D2, if the invalid step D2 ' that then carries out of described Event triggered indexed variable;
Step D2 triggers the 3a incident, execution in step E;
Step D2 ' does not trigger the 3a incident, and this method finishes.
6. 3a event measurement report method as claimed in claim 2 is characterized in that described step e may further comprise the steps:
Step e 1 judges whether measurement control order requires base station identity code to confirm, if measurement control order requires base station identity code to confirm then to carry out step e 2, does not confirm then to carry out step e 2 ' if measurement control order requires base station identity code;
Step e 2 is filled in event result, indicates that wherein measurement control order requires base station identity code to confirm;
Step e 2 ' is filled in event result, indicates that wherein measurement control order does not require the base station identity code affirmation;
Step e 3, the measurement result and the additional measurement of filling in measurement report;
Step e 4 sends measurement report.
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| CN102264081B (en) * | 2010-05-24 | 2014-02-12 | 鼎桥通信技术有限公司 | Additional measuring method |
| US8958281B2 (en) * | 2013-02-26 | 2015-02-17 | Qualcomm Incorporated | Early termination of a base station identity code procedure in TD-SDCMA |
| CN103648128B (en) * | 2013-12-30 | 2017-05-24 | 上海大唐移动通信设备有限公司 | Method and device for determining switching threshold between systems |
| EP4017084A1 (en) * | 2015-11-16 | 2022-06-22 | Huawei Technologies Co., Ltd. | Cell measurement reporting method and user equipment |
| CN105866523A (en) * | 2016-06-01 | 2016-08-17 | 深圳先进技术研究院 | Front-end voltage collection system with automatic triggering function and collection method |
| US20210144611A1 (en) * | 2017-03-14 | 2021-05-13 | Nokia Technologies Oy | Altitude position state based mobile communications |
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| CN101247621A (en) | 2008-08-20 |
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