CN101453748A - Iub port special measurement method, apparatus and system for HSDPA service - Google Patents
Iub port special measurement method, apparatus and system for HSDPA service Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for the Iub interface special measurement of a high-speed downlink packet access service. The method is used in a mobile communication system comprising user equipment, a radio network controller and a base station. The method comprises: a step of starting procedures for measuring HS-PDSCH channel quality, in which the radio network controller initiates the Iub interface special measurement aiming at the HS-PDSCH channel quality to the base station through the Iub interface, and the base station measures the HS-PDSCH channel quality; and a step of reporting a HS-PDSCH channel quality measurement report, in which the base station reports the HS-PDSCH channel quality measurement report to the radio network controller. In the invention, a Node B uses the CQI feedback information of user equipment in the prior HSDPA system to determine channel quality and report the channel quality to RNC for use as a politic basis for a high-level algorithm.
Description
Technical field
The present invention relates to a kind of Iub mouth special measurement in the 3-G (Generation Three mobile communication system), particularly TD SDMA (TD-SCDMA) system high speed downlink grouped inserts (HSDPA) professional Iub mouth special measurement method, Apparatus and system.
Background technology
The HSDPA function is a distinguishing feature of 3G (Third Generation) Moblie, and the high speed business carrying of HSDPA is main to be finished by high speed descending sharing channel (HS-DSCH), and this is the dedicated channel of a HSDPA.In uplink and downlink a shared control channel is arranged respectively in addition, promptly up HS-DSCH shares information channel (HS-SICH) and descending HS-DSCH shared control channel (HS-SICH).Along with carrying out of HSDPA business, corresponding high-rise algorithm need be gone up the support of measuring based on HSDPA, and in existing standard, the measurement relevant with HSDPA has following several: HS-DSCH provides bit rate (public-measurement); HS-DSCH requires transmission power information (public-measurement); The HS-SICH quality of reception (special measurement).
Wherein, HS-DSCH provides the measurement of bit rate to distinguish different priority, the HS-DSCH of each priority correspondence provide the measured value of bit rate be at all users in the sub-district with the total bit rate (bit/s) of this priority corresponding priorities formation in measuring period, wherein the priority of formation is indicated to base station (Node B) by " Scheduling Priority Indicator " field by radio network controller (RNC).
It is at same in the sub-district " Scheduling Priority Indicator " that HS-DSCH requires the measurement of transmission power information (HS-DSCH Required Power ValueInformation) and all User Priority formations of having " Guaranteed Bit Rate (assurance bit rate) " to require reach the HS-DSCH transmitting power of its " Guaranteed Bit Rate " minimum requirements.
The measurement of the HS-SICH quality of reception is at certain Radio Link (RL), and it reports content to mainly contain three parts: the HS-SICH number of total HS-SICH number, the HS-SICH number of losing and the failure of expectation in measuring period.
In the algorithm of the many places of high level, hope can be known professional channel quality status on high-speed downstream Physical Shared Channel (HS-PDSCH), detecting at present the eat dishes without rice or wine method of channel quality of descending HS-DSCH business has: combining wireless controlling links (RLC) buffering area takies situation and detects Iub mouth data rate, detect the data rate of eating dishes without rice or wine in conjunction with the RLC buffering area, these class methods all are the indirect monitoring down channel qualities of eating dishes without rice or wine, it is congested also to need to get rid of the Iub mouth, high speed downlink packet inserts the not enough situation of medium access controls (MAC-hs) scheduling, the factor of assessment is more, will not cause judgement inaccurate if do not consider some factor.HS-DSCH in the existing standard provides bit rate to belong to public-measurement, can't obtain the bitrate information at unique user accurately, even if can know, needs also to consider that above-mentioned multiple factor comes Comprehensive Assessment; HS-DSCH in the existing system requires transmission power information also to belong to public-measurement, though can push away to such an extent that user's HS-DSCH requires transmitting power, but also need when eating dishes without rice or wine channel quality to consider in the lump in conjunction with other factor with its tolerance, absolute channel quality measures is had relatively high expectations to threshold setting, simultaneously user's HS-DSCH requires the situation of each carrier wave of transmitting power inconvenience reflection under the multicarrier framework, and the algorithm policy of high level has been brought certain restriction; And the HS-SICH quality of reception measurement in the existing system is the measurement to subscriber equipment (UE) up link, is that existing protocol lacks to the measurement of the descending HS-PDSCH link of single UE.For want of to the mass measurement of the descending HS-PDSCH link of UE, cause the high-rise algorithm can't effective operation.
In existing system, UE reports channel quality indication (the CQI:Channel Quality Indication of base station (NodeB) on the HS-SICH channel,) just just in time reflected the channel quality on the HS-PDSCH link of eating dishes without rice or wine, comprise the transport block length (RTBS) of two-part information: UE recommendation and the modulation system that UE recommends in the CQI indication.UE draws CQI by the Block Error Rate of measuring the data block on the HS-PDSCH channel that receives.The bigger explanation of TBS in the CQI quality of eating dishes without rice or wine is better, eats dishes without rice or wine second-rately when the less then explanation of TBS, the CQI that reports is just analyzed can judge the channel quality of eating dishes without rice or wine simply and effectively like this.Channel quality measurement based on CQI also can be supported high-rise algorithm well under the multicarrier framework simultaneously.In order to utilize this simple and effective method, the present invention proposes a kind of new Iub mouth special measurement method, be intended to obtain the descending HS-PDSCH channel quality information of UE.
Summary of the invention
Technical problem to be solved by this invention is, a kind of Iub mouth special measurement method, Apparatus and system of high speed downlink grouping access business is provided, to obtain the descending HS-PDSCH channel quality information of UE.
For achieving the above object, the Iub mouth special measurement method of high speed downlink grouping access business provided by the invention is used to comprise the mobile communication system of subscriber equipment, radio network controller and base station, and this method comprises:
Start to measure the step of HS-PDSCH channel quality, initiate Iub mouth special measurement by Iub interface to described base station, and the HS-PDSCH channel quality is measured by this base station at the HS-PDSCH channel quality by described radio network controller;
Report the step of HS-PDSCH channel quality measurement report, be used for reporting the HS-PDSCH channel quality measurement to report to described radio network controller by described base station.
Said method, the step of described startup HS-PDSCH channel quality measurement further comprises:
Step 21, radio network controller sends special measurement initialization request at the HS-PDSCH channel quality by Iub interface to the base station;
Step 22, described base station initiated measurement at the HS-PDSCH channel quality, and to described radio network controller transmission special measurement initialization response message;
Step 23 after the described base station initiated measurement, is measured the HS-PDSCH channel quality according to the channel quality indication of user equipment to report.
Said method, in step 22, described radio network controller is received success response message, then think and initiate successfully at the Iub interface special measurement of HS-PDSCH channel quality, otherwise, initiate the failure circulation and carry out described step 21.
Said method, comprise a measurement type at the HS-PDSCH channel quality measurement in the Iub interface special measurement type of described HS-PDSCH, described at HS-PDSCH channel quality measurement type in, radio network controller requires the base station to report the relevant statistic of channel quality indication with user equipment to report.
Said method, comprise in the described measurement report and the relevant statistic of channel quality indication of user equipment to report that this statistic comprises following all or part of measuring amount: the number of inferior grade channel quality indication, number of times, the frequency information that subscriber equipment is scheduled.
Said method, in the described step that reports HS-PDSCH channel quality measurement report, described HS-PDSCH channel quality measurement report triggers type by Event triggered type or cycle and reports, trigger event in the described Event triggered type is number of times that subscriber equipment an is scheduled reporting measurement reports when being lower than effective scheduling times thresholding, or, the number of times that subscriber equipment is scheduled is not less than under effective scheduling times thresholding situation, the number of inferior grade channel quality indication and the UE ratio of the number of times reporting measurement reports when satisfying the setting threshold condition that is scheduled.
Said method, in described step 23, measurement is meant in the time at one end inferior grade channel quality indication number is added up to the HS-PDSCH channel in described channel quality indication according to user equipment to report, if the channel quality indication of described subscriber equipment feedback is less than channel quality indication grade thresholding, or subscriber equipment is scheduled the base station, back when not receiving the channel quality indication of described subscriber equipment feedback, and described inferior grade channel quality indication number adds 1.
Further, the invention provides a kind of device that adopts the Iub mouth special measurement method of above-mentioned high speed downlink grouping access business, be used to comprise the communication system of radio network controller and base station, this device comprises:
The HS-PDSCH channel quality measurement module is used to control radio network controller and initiates Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to the base station;
HS-PDSCH channel quality measurement report reporting module is used to control described base station and reports the HS-PDSCH channel quality measurement to report to described radio network controller.
Further, the invention provides a kind of measuring system that adopts said apparatus, the Iub mouth special measurement device that comprises subscriber equipment, radio network controller, base station and high speed downlink grouping access business, the Iub mouth special measurement device of described high speed downlink grouping access business comprises:
The HS-PDSCH channel quality measurement starts module, is used to control described radio network controller and initiates Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to described base station, and by this base station the HS-PDSCH channel quality is measured;
HS-PDSCH channel quality measurement report reporting module is used to control described base station and reports the HS-PDSCH channel quality measurement to report to described radio network controller.
Further, the present invention also provides a kind of measuring system of using the Iub mouth special measurement method of above-mentioned high speed downlink grouping access business, comprises network controller, base station and subscriber equipment, also comprises:
Described network controller is used for by Iub interface to the Iub mouth special measurement of described base station initiation at the HS-PDSCH channel quality;
Described subscriber equipment is used for the reporting channel quality and indicates to described base station;
Described base station is used for according to the channel quality indication of described user equipment to report the HS-PDSCH channel quality being measured, and measurement report is reported described network controller.
Compared with prior art, the present invention is by increasing the measurement type at the HS-PDSCH channel quality measurement in the enumerated value of Iub interface special measurement type, and utilize the CQI feedback information of UE in the existing HSDPA system to determine channel quality by Node B, report RNC, to make the strategy foundation of high-rise algorithm.
Description of drawings
Fig. 1 is the Iub mouth special measurement method flow chart of high speed downlink grouping access business of the present invention;
Fig. 2 is the special measurement schematic flow sheet of Iub lancet to the HS-PDSCH channel quality;
Fig. 3 is an Iub mouth special measurement command interaction schematic diagram;
Fig. 4 is the schematic flow sheet that NodeB carries out the HS-PDSCH channel quality measurement in the embodiment of the invention;
Fig. 5 is the Iub mouth special measurement device of high speed downlink grouping access business of the present invention and the measuring system schematic diagram of using this device;
Fig. 6 is another embodiment schematic diagram of measuring system of using the Iub mouth special measurement method of high speed downlink grouping access business of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments technical solution of the present invention being described in detail, with purpose, scheme and the effect of further understanding the present invention, but is not as the restriction to claims protection range of the present invention.
Fig. 1, Fig. 2 and Fig. 3 show the implementation of the inventive method, as shown in Figure 1, the Iub mouth special measurement method of high speed downlink grouping access business of the present invention, be used to comprise the communication system of radio network controller and base station, it is characterized in that this method comprises:
Step S10 increases the measurement type at the HS-PDSCH channel quality measurement in the Iub interface special measurement type of HS-PDSCH;
Step S20, radio network controller is initiated Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to the base station;
Step S30, described base station reports the HS-PDSCH channel quality measurement to report to described radio network controller.
With reference to figure 2, above-mentioned steps 20 further comprises:
Step S201, radio network controller sends special measurement initialization request at the HS-PDSCH channel quality by Iub interface to the base station;
Step S202, described base station initiated measurement at the HS-PDSCH channel quality, and to described radio network controller transmission special measurement initialization response message;
Step S203 after the described base station initiated measurement, measures the HS-PDSCH channel according to the channel quality indication of user equipment to report.
Above-mentioned steps S10 is to increase a kind of type at the HS-PDSCH channel quality measurement in the enumerated value of Iub interface special measurement type: HS-PDSCH transmission quality (HS-PDSCHtransmission quality).In the measurement of the type, RNC requires Node B to report the relevant statistic of CQI that reports with UE, and this statistic can comprise as all or part of measuring amount in the following table 1:
The Iub interface special measurement report reporting amount that table 1 increases newly according to the present invention
| The amount of reporting | Span | Note |
| UARFCN | INTEGER(0..16383，...) | Frequency information |
| BadCQI | INTEGER(0..65535) | In the timing statistics section, the number of inferior grade CQI |
| ScheduledTimes | INTEGER(0..65535) | In the timing statistics section, the number of times that the user is scheduled |
In above-mentioned steps S20, as shown in Figure 2, at first RNC issues special measurement initialization request at the HS-PDSCH channel quality to NodeB.
Receive the measuring command of RNC as Node B after, start the special measurement of HS-PDSCH channel quality, the CQI that UE is reported adds up.NodeB uses the communication control port that is assigned to Node B communication context to send the special measurement initialization answer message, to confirm to initiate the special measurement of HS-PDSCH channel quality to RNC.
If among the above-mentioned steps S30, as to report type be periodic report, NodeB reporting measurement reports periodically then, if reporting types is a reporting events, in the timing statistics section of a channel quality judgement, number of times is lower than effective scheduling times thresholding if UE is scheduled, or the number of times that subscriber equipment is scheduled is not less than under effective scheduling times thresholding situation, the be scheduled value of number of times of number/UE of inferior grade CQI satisfy to be set threshold condition, then reporting measurement reports can comprise all or part of amount of reporting in the above-mentioned table 1 in the measurement report.Channel quality indication when above-mentioned low-grade CQI is meant the link-quality difference.
Further describe embodiments of the present invention with a concrete measurement example below.
As shown in Figure 4, in the present embodiment, adopt incident E (EventE) mode of Iub mouth, the timing statistics section of a channel quality judgement is defined as measurement period, in the present embodiment, measurement period was made as 1 second, judged one time channel quality promptly per 200 5 milliseconds dispatching cycles.Effectively the scheduling times threshold value is by the Operation and Maintenance platform configuration, when the UE number of times that is scheduled in measurement period is lower than this threshold value, thinks that then statistics is not enough to effectively incorporate it into normal channel quality states.For relatively convenient, the CQI that uses among the embodiment is through the CQI after the normalization, is that RTBS is carried out normalization here, and the normalized formula is:
Wherein " #RU " represents Resource Unit (RU) number (being the code channel number of descending spreading factor SF=16) that the user occupies, and P represents user's solid size road power.
With reference to figure 4, this is specifically measured example and may further comprise the steps:
Step S401, when RNC sets up in the HS-DSCH business, issue Iub mouth special measurement initialization request, the special measurement type is at HS-PDSCH channel quality measurement type (but called after HS-PDSCH transmission quality), the special measurement object type is RL, increase HS-PDSCH information in the RL information, had the carrier frequency value under the HS-PDSCH information; Reported event (Report Characteristics) is set to EventE;
Step S402, NodeB starts the special measurement at the HS-PDSCH channel quality measurement, and send the special measurement initialization to RNC and successfully respond, the special measurement initialization answer message comprises a plurality of HS-PDSCH measured value information (Multiple HS-PDSCH Measurement ValueInformation) under RL information, comprise the special measurement value under this HS-PDSCH measured value information, in the special measurement value under additional special measurement value (Additional Dedicated Measurement Values) increased HS-PDSCH channel quality cell, comprise HS-PDSCH channel quality value cell under the HS-PDSCH channel quality cell, comprise the amount of reporting in the table 1 under the HS-PDSCH channel quality value cell.
Step S403, zero clearing inferior grade CQI (BadCQI), scheduling times (ScheduledTimes);
Step S404, once scheduling to NodeB, if this UE is not scheduled, change step S405, the number of times ScheduledTimes++ otherwise UE is scheduled, and whether continue to judge TBS after the CQI normalization of UE feedback less than the normalization thresholding, or the UE back NodeB that is scheduled do not receive when feeding back CQI, then BadCQI++;
Step S405 judges whether measurement period, and if not, NodeB continues to wait for that step S404 is changeed in scheduling next time; If then change step S406;
Step S406, whether the scheduling times of judging UE if judgement this moment channel quality normal, reports report B (ReportB) less than effective scheduling times threshold value, comprises described 3 amounts of reporting of above-mentioned table 1 in the measurement report, changes step S409; Otherwise change step S407;
Step S407, if whether the inferior grade CQI/ scheduling times (BadCQI/ScheduledTimes) of judging UE then judge this moment bad channel quality, reports report A (ReportA) greater than measuring thresholding 1, comprise described 3 amounts of reporting of table 1 in the measurement report, change step S409; Otherwise go to step S408;
Whether step S408, the inferior grade CQI/ scheduling times of UE of judging UE less than measuring thresholding 2, if, judge that then channel quality is normal, report report B, comprise described 3 amounts of reporting of table 1 in the measurement report;
Whether step S409 has stopped this special measurement, if not, changes step S403, if then flow process finishes.
With reference to figure 5, the invention also discloses a kind of device 500 of the Iub mouth special measurement method of using above-mentioned high speed downlink grouping access business and the communication system 50 of using said method and device.The Iub mouth special measurement device 500 that comprises radio network controller 501, base station 502 and high speed downlink grouping access business, the Iub mouth special measurement device of this high speed downlink grouping access business comprises: the HS-PDSCH channel quality measurement starts module 511, is used to control radio network controller and initiates Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to the base station; HS-PDSCH channel quality measurement report reporting module 512 is used to control described base station and reports the HS-PDSCH channel quality measurement to report to described radio network controller.
With reference to figure 6, the invention also discloses a kind of measuring system 60 that adopts said method, comprise network controller 601, base station 602, subscriber equipment 603 and HS-PDSCH special measurement control device 604, wherein, this HS-PDSCH special measurement control device 604 is used for by the channel quality measurement of network controller startup to HS-PDSCH; This network controller 601 is used for by Iub interface to the Iub mouth special measurement of described base station initiation at the HS-PDSCH channel quality; This subscriber equipment 603 is used for the reporting channel quality and indicates to described base station; This base station 602 is used for according to the channel quality indication of described user equipment to report the HS-PDSCH channel quality being measured, and measurement report is reported described network controller.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of Iub mouth special measurement method of high speed downlink grouping access business is used to comprise the mobile communication system of subscriber equipment, radio network controller and base station it is characterized in that this method comprises:
Start to measure the step of HS-PDSCH channel quality, initiate Iub mouth special measurement by Iub interface to described base station, and the HS-PDSCH channel quality is measured by this base station at the HS-PDSCH channel quality by described radio network controller;
Report the step of HS-PDSCH channel quality measurement report, be used for reporting the HS-PDSCH channel quality measurement to report to described radio network controller by described base station.
2, method according to claim 1 is characterized in that, the step of described startup HS-PDSCH channel quality measurement further comprises:
Step 21, radio network controller sends special measurement initialization request at the HS-PDSCH channel quality by Iub interface to the base station;
Step 22, described base station initiated measurement at the HS-PDSCH channel quality, and to described radio network controller transmission special measurement initialization response message;
Step 23 after the described base station initiated measurement, is measured the HS-PDSCH channel quality according to the channel quality indication of user equipment to report.
3, method according to claim 2 is characterized in that, in step 22, described radio network controller is received success response message, then think and initiate successfully at the Iub interface special measurement of HS-PDSCH channel quality, otherwise, initiate the failure circulation and carry out described step 21.
4, method according to claim 1, it is characterized in that, comprise a measurement type at the HS-PDSCH channel quality measurement in the Iub interface special measurement type of described HS-PDSCH, described at HS-PDSCH channel quality measurement type in, radio network controller requires the base station to report the relevant statistic of channel quality indication with user equipment to report.
5, method according to claim 1, it is characterized in that, comprise in the described measurement report and the relevant statistic of channel quality indication of user equipment to report that this statistic comprises following all or part of measuring amount: the number of inferior grade channel quality indication, number of times, the frequency information that subscriber equipment is scheduled.
6, method according to claim 1, it is characterized in that, in the described step that reports HS-PDSCH channel quality measurement report, described HS-PDSCH channel quality measurement report triggers type by Event triggered type or cycle and reports, trigger event in the described Event triggered type is number of times that subscriber equipment an is scheduled reporting measurement reports when being lower than effective scheduling times thresholding, or, the number of times that subscriber equipment is scheduled is not less than under effective scheduling times thresholding situation, the number of inferior grade channel quality indication and the UE ratio of the number of times reporting measurement reports when satisfying the setting threshold condition that is scheduled.
7, method according to claim 2, it is characterized in that, in described step 23, measurement is meant in the time at one end inferior grade channel quality indication number is added up to the HS-PDSCH channel in described channel quality indication according to user equipment to report, if the channel quality indication of described subscriber equipment feedback is less than channel quality indication grade thresholding, or subscriber equipment is scheduled the base station, back when not receiving the channel quality indication of described subscriber equipment feedback, and described inferior grade channel quality indication number adds 1.
8, a kind of device of using the Iub mouth special measurement method of each described high speed downlink grouping access business in the aforesaid right requirement 1～7 is used to comprise the communication system of radio network controller and base station it is characterized in that this device comprises:
The HS-PDSCH channel quality measurement module is used to control radio network controller and initiates Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to the base station;
HS-PDSCH channel quality measurement report reporting module is used to control described base station and reports the HS-PDSCH channel quality measurement to report to described radio network controller.
9, a kind of measuring system that adopts aforesaid right to require 8 described devices, the Iub mouth special measurement device that comprises subscriber equipment, radio network controller, base station and high speed downlink grouping access business, it is characterized in that the Iub mouth special measurement device of described high speed downlink grouping access business comprises:
The HS-PDSCH channel quality measurement starts module, is used to control described radio network controller and initiates Iub mouth special measurement at the HS-PDSCH channel quality by Iub interface to described base station, and by this base station the HS-PDSCH channel quality is measured;
HS-PDSCH channel quality measurement report reporting module is used to control described base station and reports the HS-PDSCH channel quality measurement to report to described radio network controller.
10, a kind of measuring system of using the Iub mouth special measurement method of each described high speed downlink grouping access business in the aforesaid right requirement 1～7 comprises network controller, base station and subscriber equipment, it is characterized in that, also comprises:
Described network controller is used for by Iub interface to the Iub mouth special measurement of described base station initiation at the HS-PDSCH channel quality;
Described subscriber equipment is used for the reporting channel quality and indicates to described base station;
Described base station is used for according to the channel quality indication of described user equipment to report the HS-PDSCH channel quality being measured, and measurement report is reported described network controller.
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| CN2007101785451A CN101453748B (en) | 2007-11-30 | 2007-11-30 | Iub port special measurement method, apparatus and system for HSDPA service |
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| CN2007101785451A CN101453748B (en) | 2007-11-30 | 2007-11-30 | Iub port special measurement method, apparatus and system for HSDPA service |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006619A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | High speed packet access special measurement method and base station |
| CN102685800A (en) * | 2012-04-20 | 2012-09-19 | 大唐移动通信设备有限公司 | Inquiry method, device and system for receiving quality of downlink channel of terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100591158C (en) * | 2004-07-09 | 2010-02-17 | 北京三星通信技术研究有限公司 | Method for implementing positioning enhancing by beam forming in LCR-TDD system |
| CN100449979C (en) * | 2005-07-01 | 2009-01-07 | 上海原动力通信科技有限公司 | Method for supporting multi-stage modulation by controlling high-speed down-converter grouped access system |
| CN100382629C (en) * | 2005-11-30 | 2008-04-16 | 华为技术有限公司 | Method for carrying out special measurement by Iub interface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006619A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | High speed packet access special measurement method and base station |
| CN102685800A (en) * | 2012-04-20 | 2012-09-19 | 大唐移动通信设备有限公司 | Inquiry method, device and system for receiving quality of downlink channel of terminal |
| CN102685800B (en) * | 2012-04-20 | 2015-06-17 | 大唐移动通信设备有限公司 | Inquiry method, device and system for receiving quality of downlink channel of terminal |
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| CN101453748B (en) | 2011-05-25 |
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