CN101399598A - Control method, system for uncontinuous transmission and wireless network control unit - Google Patents
Control method, system for uncontinuous transmission and wireless network control unit Download PDFInfo
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Abstract
The invention discloses a control method of discontinuous transmission (DTX), and the control method comprises the following steps: the communication condition information of user equipment (UE) in a current DTX period is obtained;, a target DTX period which meets the link quality of the UE is determined according to the communication condition information; and the target DTX period is taken as the current DTX period for the discontinuous transmission. In addition, the invention further discloses a discontinuous transmission (DTX) control system and a wireless network control unit. The technical proposal of the invention can minimize the interference on other users under the premise of ensuring the link quality of the UE.
Description
Technical field
The present invention relates to the communication technology, relate in particular to control method, system and the wireless network control unit of a kind of discontinuous transmission (DTX).
Background technology
In communication system, some specific transactions such as voice service and visual telephone service etc., its working method approaches half-duplex mode, promptly the opposing party is just answering when a side speaks, be reflected in and then show as on the direction (as up) in the transmission when sending data, (as descending) unactual information will transmit on another direction, and is just transmitting background noise.In this case, the link transmission on the direction that does not have actual information to transmit can be interrupted temporarily, recover link transmission when having actual information to transmit by the time again, promptly common so-called discontinuous transmission (DTX) technology.This technology is applied in up link is up DTX, be applied in down link and be descending DTX, perhaps also can on both direction, use DTX simultaneously.
Under the DTX pattern, there are not actual data to need transmission in some time period between base station (Node B) and the subscriber equipment (UE), this time period is called quiet period.Owing in quiet period, be not send any data on this link basically, this has also just been avoided the interference to other users, this is even more important for the self-interference system as CDMA, so DTX reduces an important means disturbing and significantly improve power system capacity.In fact, Node B and UE still can periodically send some short packets to the opposite end on this link in quiet period, and these short packets are called special burst (Special Burst).The purpose that sends special burst mainly contains two: the one, periodically send background noise information generated or upgraded the voice that background noise decodes with raising for the opposite end comfort level, improving hearer's the sense of hearing experiences, the another one purpose is the control command word of the quick control of transport layer one (physical layer) in order to keep link, and the while transmits specific when not having the transmission of background noise informational needs or random bit information is carried out the physical layer measurement for the opposite end.Wherein, the quick control of layer one includes but not limited to power control (PC), uplink synchronous control (ULSC) and down beam shaping control (BF) etc.
Inserting (TD-SCDMA) system with Time Division-Synchronous Code Division Multiple Access is example, the special burst that it is M subframe that common every N subframe sends a length (M≤N), for example, M can be 2, N can be 4,8 or 16 etc., and the length of subframe is 5ms, then correspondingly, the DTX cycle is 20,40 or 80ms, and the length of special burst is 10ms.
Usually, control command word (as power control instruction word, synchronic command word etc.) that all can carrying layer one in each physical transfer unit (data burst that transmits on as certain or certain the several time slots in the subframe of TD-SCDMA system) is used for using when transmitting power or transmitting time are adjusted in the opposite end when sending.But under the DTX pattern, owing to only when the transmission special burst, just can carry the control command word, and the transmission of special burst is discontinuous, this just cause receiving terminal can not receive in time the control command word and and then can't in time adjust according to the situation of current link the data that send, therefore can give the control of layer one, bring negative influence as power control (PC), uplink synchronous control (ULSC) and down beam shaping control (BF), and then have influence on the quality of reception of link.Generally, the DTX cycle is big more, and is obvious further once the negative effect of control to layer.When the UE translational speed is slow, because this moment, link performance depended on accurate layer one control fast very much, therefore carry out the quick control of layer one and can bring bigger performance gain, correspondingly for link-quality, the DTX cycle is big more, and it is many more to cause link-quality to descend.In addition, when the UE translational speed is very fast, because the channel status conversion is very fast, carry out the quick control of layer one itself and can't bring bigger performance gain for link-quality, DTX cycle this moment is little to the quality influence of link, on the contrary, heightens the DTX cycle this moment, because the time of mourning in silence fully increases, therefore correspondingly can reduce interference to a greater degree to other user.
In the prior art, owing to do not consider the concrete condition of each UE usually, and be that all interior UE of certain area of coverage distribute an identical fixing DTX cycle, even it is all UE fixing DTX cycles of unified distribution in the network, therefore make some UE owing to the DTX cycle of being distributed has influence on link-quality greater than its actual needed cycle, then the DTX cycle causes sending too continually special burst and causes the unnecessary interference to other UE some UE too for a short time relatively.As seen, how according to the communication conditions of UE, for this UE distributes the suitable DTX cycle, and adjust this cycle according to the change dynamics ground of the physical link situation of this UE, thereby at utmost reducing the interference to other UE, the capacity of lifting whole system under the prerequisite that guarantees this UE link-quality, is present urgent problem.
Summary of the invention
In view of this, provide the control method of a kind of DTX among the present invention on the one hand, control system and the wireless network control unit of a kind of DTX are provided on the other hand, so that guarantee the link-quality of UE.
The control method of DTX provided by the invention comprises:
Obtain the communication conditions information of current DTX user equipment (UE) under the cycle;
According to described communication conditions information, determine to satisfy the target DTX cycle of the link-quality of described UE;
The described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
Wherein, the communication conditions information of described UE is: the link quality information of the up and/or downlink transfer of UE.
Wherein, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
If described link quality information greater than preset link quality information high threshold, is then turned down the current DTX cycle according to default decline step-length, the described DTX cycle after turning down is defined as the target DTX cycle.
Preferably, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if described link quality information is less than preset link quality information low threshold, then heighten the current DTX cycle, the described DTX cycle after heightening is defined as the target DTX cycle according to default rising step-length.
Wherein, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if described link quality information, determines then that the current DTX cycle is the target DTX cycle more than or equal to preset link quality information low threshold and smaller or equal to preset link quality information high threshold.
Wherein, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
According to described link quality information, and the preset link quality information with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
Wherein, described link quality information is the average frame error rate in the Preset Time section.
Wherein, the communication conditions information of described UE is: the translational speed information indication of UE.
Wherein, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
If described translational speed information indication less than default translational speed information indication low threshold, is then turned down the current DTX cycle according to default decline step-length in default time period or number of times, the described DTX cycle after turning down is defined as the target DTX cycle.
Wherein, if less than default translational speed information indication low threshold, this method further comprises in default time period or number of times in described translational speed information indication: turn down current translational speed information indication low threshold according to the certain proportion of default decline step-length.
Preferably, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if the indication of described translational speed information in default time period or number of times greater than default translational speed information indication high threshold, then heighten the current DTX cycle, the described DTX cycle after heightening is defined as the target DTX cycle according to default rising step-length.
Wherein, if greater than default translational speed information indication high threshold, this method further comprises: heighten current movement speed information indication low threshold and high threshold according to the certain proportion of default rising step-length in default time period or number of times in described translational speed information indication;
If less than default translational speed information indication low threshold, this method further comprises: turn down current movement speed information indication low threshold and high threshold according to the certain proportion of default decline step-length in default time period or number of times in described translational speed information indication.
Preferably, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if the indication of described translational speed information in default time period or number of times more than or equal to default translational speed information indication low threshold and smaller or equal to default translational speed information indication high threshold, determine that then the current DTX cycle is the target DTX cycle.
Wherein, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
According to the indication of described translational speed information, and the indication of default translational speed information with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
Wherein, the translational speed information of described UE is designated as that UE moves the switching frequency that causes and/or UE moves decline soon frequency and/or the channel relevancy indication that causes.
Wherein, the described UE of obtaining moves frequency and/or the channel relevancy indication that declines soon that causes and comprises: obtain base station measurement and the UE that reports moves decline soon frequency and/or the channel relevancy indication that causes;
And/or, obtain that UE measures and the UE that reports moves decline soon frequency and/or the channel relevancy indication that causes.
Wherein, the described UE that obtains base station measurement and report further comprises before moving decline soon frequency and/or the channel relevancy indication that causes:
To base station transmission the carrying out indication of special measurement, the operation that the base station is carried out described measurement and reported according to described indication.
Wherein, the described transmission to the base station carried out being designated as of special measurement:
Add the measurement item of decline soon frequency and/or channel relevancy indication in the special measurement type in special measurement initialization request message, send to the base station by carrying the described special measurement initialization request message of measuring item.
The control system of DTX provided by the invention comprises: user equipment (UE) and wireless network control unit, wherein,
Described wireless network control unit is used to obtain the communication conditions information of current DTX described UE under the cycle, according to described communication conditions information, determine to satisfy the target DTX cycle of the link-quality of described UE, the described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
Wherein, the communication conditions information of described UE is: UE moves decline soon frequency and/or the channel relevancy indication that causes; This system further comprises:
The base station is used for that UE is moved frequency and/or the channel relevancy indication that declines soon that causes and measures, and decline soon frequency and/or the channel relevancy indication that measures reported described wireless network control unit.
Wireless network control unit provided by the invention comprises:
Acquisition module is used to obtain the communication conditions information of current DTX user equipment (UE) under the cycle;
The DTX period determination module is used for according to described communication conditions information, determines to satisfy the target DTX cycle of the link-quality of described UE;
The transmission process module is used for the described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
Wherein, the communication conditions information of described UE is: the average frame error rate of the up and/or downlink transfer link of UE in the Preset Time section; Described acquisition module comprises:
Descending frame error rate processing module is used to receive the frame error rate of the downlink transfer link that UE reports, and described frame error rate is carried out smoothing processing in the Preset Time section, obtains average frame error rate;
And/or up frame error rate processing module is used to calculate the frame error rate of uplink link, and described frame error rate is carried out smoothing processing in the Preset Time section, obtains average frame error rate.
Described DTX period determination module comprises:
Comparison module is used for described average frame error rate and the frame error rate high threshold of presetting are compared, and comparative result is notified to determination module;
Determination module is used for during greater than default frame error rate high threshold, turning down current DTX cycle according to default decline step-length in described average frame error rate, and the described DTX cycle after turning down is defined as the target DTX cycle.
Perhaps, described DTX period determination module comprises:
Memory module, the corresponding relation that is used to store default average frame error rate Yu satisfies the target DTX cycle of UE link-quality;
Determination module is used for according to described average frame error rate, and the described corresponding relation in the memory module, determines the target DTX cycle.
Wherein, the communication conditions information of described UE is: the translational speed information indication of UE; Described DTX period determination module comprises:
Comparison module is used for indicating low threshold to compare described translational speed information indication and default translational speed information, and comparative result is notified to determination module;
Determination module, be used in the indication of described translational speed information in default time period or number of times during less than default translational speed information indication low threshold, turn down the current DTX cycle according to default decline step-length, the described DTX cycle after turning down is defined as the target DTX cycle.
Described DTX period determination module comprises:
Memory module is used to store default translational speed information indication and satisfy the corresponding relation in the target DTX cycle of UE link-quality;
Determination module is used for according to described translational speed information indication, and the described corresponding relation in the memory module, determines the target DTX cycle.
From such scheme as can be seen, among the present invention by obtaining the communication conditions information of current DTX UE under the cycle, and according to the communication conditions information of being obtained, determine to satisfy the target DTX cycle of the link-quality of this UE, this target DTX cycle is carried out discontinuous transmission as the current DTX cycle, thereby guaranteed the link-quality of this UE.
Description of drawings
Fig. 1 is the exemplary process diagram of the control method of DTX in the embodiment of the invention;
Fig. 2 is the exemplary block diagram of the control system of DTX in the embodiment of the invention;
Fig. 3 is the structural representation of wireless energy control units in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Fig. 1 is the exemplary process diagram of the control method of DTX in the embodiment of the invention.As shown in Figure 1, this flow process comprises the steps:
Step 101 is obtained the communication conditions information of current DTX UE under the cycle.
In this step, the communication conditions information of UE can show as the link quality information of UE, also can show as the translational speed information of UE, perhaps out of Memory etc., and correspondingly, the method that network side obtains the communication conditions information of UE can have multiple.Be example with the TD-SCDMA system below, enumerate wherein several implementation methods this step is described in detail.
First kind: the link quality information of radio network controller (RNC) monitoring UE.During specific implementation, this link quality information can show as frame error rate (BLER).Wherein, link quality information can comprise uplink quality information and downlink quality information, when uplink quality is controlled, can use uplink quality information, when downlink quality is controlled, can use downlink quality information.Also uplink quality information and downlink quality information can be combined whole link (comprising uplink and downlink) is controlled simultaneously.
Wherein, the frame error rate of downlink transfer link can report RNC by UE, the frame error rate of uplink link can be calculated by RNC, and when utilizing frame error rate to represent link-quality, for fear of correct judgement being made in the adjustment in DTX cycle because the big ups and downs of BLER instantaneous value influence, can carry out filtering smoothing processing (as carrying out moving average) to the frame error rate in the certain hour section, obtain the average frame error rate BLER_avg in this time period, in order to the expression link quality information.
Second kind: the translational speed information indication of RNC monitoring UE.During specific implementation, the translational speed information of this UE indication can show as UE and move the switching frequency (HO_freq) that causes, perhaps UE moves the frequency that declines soon (FF_freq) that causes, perhaps channel relevancy indication (Corr_CH) etc.
Wherein, UE moves the switching frequency that causes and refers to the number of times that (T_HO) effectively switches in the default observation cycle, and this switching frequency can be measured by RNC.Wherein, effectively switch and refer to the switching that causes mainly due to the variation of path loss in the UE moving process, and do not comprise because the frequent switching that neighbor cell signal intensity instability is caused (cutting etc.) as returning.
For example, be the situation of 500m for radius of society, if the translational speed of UE is 3km/h, then UE on average switches every 1200s once; If the translational speed of UE is 30km/h, then UE switches average every 120s once.
Wherein, UE moves the number that the frequency that declines soon that causes refers to interior fading peak point fast of default observation cycle (T_FF) or the lowest point point, and this frequency that declines soon can and report RNC by base station measurement.Give the correct time on concrete, can periodically report or the Event triggered mode reports, report process can for:
RNC sends to the base station and carries out the indication of special measurement, for example can use special measurement initialization request (DEDICATED MEASUREMENT INITIATION REQUEST) to notify NodeB to carry out special measurement, and the cycle of measuring, the mode of measuring, and the mode that reports or the like, after NodeB received the message of RNC, the measurement pattern of initialization oneself was replied special measurement initialization response (DEDICATED MEASUREMENT INITIATION RESPONSE) then and is given RNC.
After initialization was finished, the result that NodeB uses special measurement report (DEDICATEDMEASUREMENT REPORT) feedback to measure gave RNC.
RNC can stop request (DEDICATED MEASUREMENTTERMINATION REQUEST) by special measurement and stop at any time measuring.
Owing in existing standard, there is not relevant measurement item, therefore can in DEDICATEDMEASUREMENT INITIATION REQUEST message, add relevant measurement item and move the frequency that declines soon that causes to reflect UE, during concrete the interpolation, can there be a lot of modes to add, a kind of possible mode is to revise special measurement type (Dedicated Measurement Type) this information unit (IE), for example, can add therein and measure " FFFreq ", and define the value of the reporting scope that this measures item.Afterwards, NodeB adds the measurement result relevant with FFFreq and reports in DEDICATED MEASUREMENT REPORT.
Wherein, channel relevancy indication (Corr_CH) refers to (T_CH) channel coefficient correlation in the default observation cycle, and between 0～1, the big more channel relevancy that shows of value is strong more usually for span, corresponding user moving speed is low more, and this value can measure and report RNC by NodeB.Describe conveniently for the back, also Corr_CH can be defined as (1-channel coefficient correlation).This paper description all about Corr_CH after this all is as the criterion with (1-channel coefficient correlation) this definition.
Give the correct time on concrete, can periodically report or the Event triggered mode reports, report process can for:
RNC uses DEDICATED MEASUREMENT INITIATION REQUEST to notify NodeB to carry out special measurement, and the cycle of measuring, the mode of measuring, and the mode that reports or the like, after NodeB receives the message of RNC, the measurement pattern of initialization oneself is replied DEDICATED MEASUREMENT INITIATION RESPONSE then and is given RNC.
After initialization was finished, the result that NodeB uses special measurement report DEDICATEDMEASUREMENT REPORT feedback to measure gave RNC.
RNC can stop at any time measuring by DEDICATED MEASUREMENT TERMINATIONREQUEST.
Owing in existing standard, there is not relevant measurement item, therefore can in DEDICATEDMEASUREMENT INITIATION REQUEST message, add relevant measurement item and move the frequency that declines soon that causes to reflect UE, during specific implementation, can there be a lot of modes to add, a kind of possible mode is to revise this IE of Dedicated Measurement Type, for example, can add therein and measure " CorrCH ", and define the value of the reporting scope that this measures item.Afterwards, NodeB adds the measurement result relevant with CorrCH and reports in DEDICATED MEASUREMENT REPORT.
For fear of the influence of transient measurement value fluctuation, can carry out filtering level and smooth (as carrying out moving average etc.) to the above-mentioned translational speed information indicated value of real-time measurement.Filtering smoothing process to FF_freq and Corr_CH can be carried out in NodeB, also can carry out in RNC, only carries out in RNC the filtering of HO_freq is level and smooth.
In addition, for the system (as the FDD system) that the up-downgoing channel situation differs greatly, also can require UE to measure and report above-mentioned FF_freq and/or Corr_CH measured value simultaneously.RNC can adjust the DTX cycle of link according to this measured value that this measured value that NodeB reports is adjusted the DTX cycle of link or utilized UE to report like this, and perhaps the measured value that utilizes NodeB and UE to report is jointly adjusted the DTX cycle of link.
Step 102 according to the communication conditions information of being obtained, determines to satisfy the target DTX cycle of the link-quality of UE.
Concrete definite method in this step can have multiple, first kind of situation in the corresponding step 101, can be: preestablish the link quality information high threshold, be frame error rate high threshold BLER_up, current average frame error rate BLER_avg that obtains and the frame error rate high threshold BLER_up that sets are compared, if average frame error rate BLER_avg is greater than frame error rate high threshold BLER_up, then can turn down current DTX cycle step-length, the DTX cycle after turning down is defined as the target DTX cycle according to default decline step-length DTX_step_down.
In addition low more because the DTX cycle is long more to other user's interference, therefore can be under the situation that guarantees link-quality the suitable DTX cycle of heightening, thereby reduce interference to other user.For this reason, can further preestablish the link quality information low threshold in the present embodiment, be frame error rate low threshold BLER_down, as average frame error rate BLER_avg during less than frame error rate low threshold BLER_down, can heighten current DTX cycle step-length according to default rising step-length DTX_step_up, the DTX cycle after heightening is defined as the target DTX cycle.
When average frame error rate BLER_avg smaller or equal to frame error rate high threshold BLER_up, and during more than or equal to frame error rate low threshold BLER_down, can keep the current DTX cycle constant, determine that promptly the current DTX cycle is the target DTX cycle.Decline step-length and rising step-length can be the same or different.For example,, the decline step-length can be set, promptly the adjustment in DTX cycle be taked to rise slowly the mode of falling soon greater than the rising step-length in order to reduce influence as far as possible to this UE link-quality.
Perhaps, also can set in advance link quality information, promptly average frame error rate with satisfy the corresponding relation in the target DTX cycle of UE link-quality, this corresponding relation can be the interval corresponding relation with the target DTX cycle of the scope of average frame error rate.Determine that then method can be according to the average frame error rate of being obtained and the average frame error rate and the corresponding relation in target DTX cycle, to determine the target DTX cycle.
Second kind of situation in the corresponding step 101, definite method in this step can be: preestablish translational speed information indication low threshold, the translational speed information indication of the UE that obtains is compared with this translational speed information indication low threshold, when translational speed information indication in the default time period during less than this translational speed information indication low threshold, then can turn down the current DTX cycle according to default decline step-length, the DTX cycle after turning down is defined as the target DTX cycle, simultaneously current movement speed information indication low threshold is turned down by the certain proportion of decline step-length.
When the indication of translational speed information is not less than this translational speed information indication low threshold in the default time period, can keep the current DTX cycle constant, perhaps further, can preestablish translational speed information indication high threshold, when translational speed information indication in the default time period during greater than this translational speed information indication high threshold, then can heighten the current DTX cycle according to default rising step-length, the DTX cycle after heightening is defined as the target DTX cycle, simultaneously current movement speed information indication low threshold and high threshold is heightened by the certain proportion of rising step-length.At this moment, when translational speed information indication in the default time period during less than translational speed information indication low threshold, when current movement speed information indication low threshold is turned down by the certain proportion of decline step-length, also can simultaneously current movement speed information indication high threshold be turned down by the certain proportion of decline step-length.
Can keep the current DTX cycle constant when translational speed information indication is discontinuous in the default time period less than translational speed information indication low threshold and discontinuous during, determine that promptly the current DTX cycle is the target DTX cycle greater than translational speed information indication high threshold.
Wherein, the indication of translational speed information can be switching frequency HO_freq, corresponding mobile velocity information indication low threshold can be switching frequency low threshold HOF_down, translational speed information indication high threshold can be switching frequency high threshold HOF_up, and the value of these two thresholdings can be estimated to obtain according to overlay area type (city, suburb or rural area etc.) and radius of society.For example, higher H OF_up can be set, relatively low HOF_up etc. then can be set in the rural area, suburb at dense city.In the present embodiment, the default time period can be N * T_HO, and N is a preset value.
In addition, the indication of translational speed information also can be the frequency FF_freq that declines soon, and corresponding mobile velocity information indication low threshold can be the frequency low threshold FFF_down that declines soon, and translational speed information indication high threshold can be the frequency high threshold FFF_up that declines soon.In the present embodiment, the default time period can be M * T_FF, and M is a preset value.
In addition, the indication of translational speed information also can be indicated Corr_CH for channel relevancy, corresponding mobile velocity information indication low threshold can be indicated low threshold CH_down for channel relevancy, and translational speed information indication high threshold can be indicated high threshold CH_up for channel relevancy.
Perhaps, also can set in advance the indication of translational speed information and satisfy the corresponding relation in the target DTX cycle of UE link-quality, this corresponding relation can be the scope interval of translational speed information indication and the corresponding relation in target DTX cycle, perhaps also can be the translational speed information indication value and the corresponding relation in target DTX cycle.The method of then determining can be according to the translational speed information indication of being obtained and the indication of translational speed information and the corresponding relation in target DTX cycle, to determine the target DTX cycle.Wherein, the indication of translational speed information can be switching frequency HO_freq equally, also can be the frequency FF_freq that declines soon, or their certain combination.
Above-mentioned carries out the adjustment in DTX cycle according to link quality information or the indication of translational speed information, can carry out respectively at uplink and downlink, for example, carry out the adjustment in up DTX cycle, carry out the adjustment in descending DTX cycle according to downlink quality information according to uplink quality information; Again for example, the DTX cycle that the translational speed information indication that can report according to NodeB is carried out is up (or descending, when UE does not report the indication of translational speed information) is adjusted, carries out the descending DTX cycle and adjusts and indicate according to the translational speed information that UE reports.Also can utilize the indication of link quality information or translational speed information or their certain combination to carry out the adjustment in up-downgoing DTX cycle simultaneously, only adjust a DTX periodic quantity general this moment, and this value is applied to uplink and downlink simultaneously.
Step 103 is carried out discontinuous transmission with the determined target DTX cycle as the current DTX cycle.
More than the control method of the DTX in the embodiment of the invention is described in detail, again the control system of DTX in the embodiment of the invention is described in detail below.
Fig. 2 is the exemplary block diagram of the control system of DTX in the embodiment of the invention.As shown in Figure 2, this system comprises: UE and wireless network control unit.
Wherein, wireless network control unit is used to obtain the communication conditions information of current DTX UE under the cycle, according to institute's obtaining communication condition information, determine to satisfy the target DTX cycle of the link-quality of this UE, this target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
When the communication conditions information of UE is that UE moves declining soon when frequency and/or channel relevancy indication of causing, this system can further comprise: the base station, be used for that UE is moved frequency and/or the channel relevancy indication that declines soon that causes and measure, decline soon frequency and/or the channel relevancy indication that measures reported wireless network control unit.Further, wireless network control unit can send the indication of decline soon frequency and/or channel relevancy indication measurement to UE.
Wherein, the specific operation process of wireless network control unit can be consistent with the process described in the flow process shown in Figure 1, gives unnecessary details no longer one by one herein.
During specific implementation, wireless network control unit can have multiple specific implementation form, a kind of internal structure schematic diagram when Fig. 3 shows the wireless network control unit specific implementation.As shown in Figure 3, this wireless network control unit can comprise: acquisition module, DTX period determination module and transmission process module.
Wherein, acquisition module is used to obtain the communication conditions information of current DTX UE under the cycle.
The DTX period determination module is used for the communication conditions information obtained according to acquisition module, determines to satisfy the target DTX cycle of the link-quality of UE.
The transmission process module is used for the target DTX cycle that the DTX period determination module is determined is carried out discontinuous transmission as the current DTX cycle.
Wherein, multiple way of realization can be arranged during the wireless network control unit specific implementation.For example, when the communication conditions information of UE was the average frame error rate of up and/or downlink transfer link in the Preset Time section, acquisition module can comprise: up frame error rate processing module and/or descending frame error rate processing module.
Wherein, descending frame error rate processing module is used to receive the frame error rate of the downlink transfer link that UE reports, and the frame error rate that is received is carried out smoothing processing in the Preset Time section, obtains average frame error rate.
Up frame error rate processing module is used to calculate the frame error rate of uplink link, and the frame error rate of being calculated is carried out smoothing processing in the Preset Time section, obtains average frame error rate.
At this moment, the DTX period determination module can comprise: comparison module and determination module.
Wherein, comparison module is used for average frame error rate and the frame error rate high threshold of presetting are compared, and comparative result is notified to determination module.
Determination module is used for during greater than default frame error rate high threshold, turning down current DTX cycle according to default decline step-length in average frame error rate, and the described DTX cycle after turning down is defined as the target DTX cycle.
In addition, comparison module can also further compare average frame error rate and the frame error rate low threshold of presetting, and comparative result is notified to determination module.Determination module further during less than default frame error rate low threshold, is heightened current DTX cycle according to default rising step-length in average frame error rate, and the described DTX cycle after heightening is defined as the target DTX cycle.
Perhaps, the DTX period determination module can comprise: memory module and determination module.
Wherein, memory module is used to store default average frame error rate and the corresponding relation that satisfies the target DTX cycle of UE link-quality.
Determination module is used for according to average frame error rate, and the average frame error rate in the memory module with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
And for example, when the communication conditions information of UE was the translational speed information indication of UE, the DTX period determination module can comprise: comparison module and determination module.
Wherein, comparison module is used for indicating low threshold to compare indication of translational speed information and default translational speed information, and comparative result is notified to determination module.
Determination module is used for during less than default translational speed information indication low threshold, turning down the current DTX cycle according to default decline step-length in translational speed information indication in default time period or number of times, and the DTX cycle after turning down is defined as the target DTX cycle.
Further, comparison module can indicate high threshold to compare indication of translational speed information and default translational speed information, and comparative result is notified to determination module.Determination module further during greater than default translational speed information indication high threshold, is heightened the current DTX cycle according to default rising step-length in translational speed information indication in default time period or number of times, the DTX cycle after heightening is defined as the target DTX cycle.
Perhaps, the DTX period determination module can comprise: memory module and determination module.
Wherein, memory module is used to store default translational speed information indication and satisfy the corresponding relation in the target DTX cycle of UE link-quality.
Determination module is used for according to translational speed information indication, and the translational speed information of storing in memory module indication with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
Equally, the indication of translational speed information can be switching frequency HO_freq, corresponding mobile velocity information indication low threshold can be switching frequency low threshold HOF_down, translational speed information indication high threshold can be switching frequency high threshold HOF_up, the default time period can be N * T_HO, and N is a preset value.
Perhaps, the indication of translational speed information also can be the frequency FF_freq that declines soon, corresponding mobile velocity information indication low threshold can be the frequency low threshold FFF_down that declines soon, translational speed information indication high threshold can be the frequency high threshold FFF_up that declines soon, the default time period can be M * T_FF, and M is a preset value.
Or, the indication of translational speed information can also be channel relevancy indication Corr_CH, corresponding mobile velocity information indication low threshold can be indicated low threshold CH_down for channel relevancy, and translational speed information indication high threshold can be indicated high threshold CH_up for channel relevancy.
During specific implementation, the specific operation process of each module can be consistent with the process described in the flow process shown in Figure 1 in the above-mentioned wireless network control unit, gives unnecessary details no longer one by one herein.
In the TD-SCDMA system, wireless network control unit can be RNC, and wireless network control unit can be the respective network elements in the corresponding system in other communication system, as the base station (ENodeB) that strengthens, base station controller (BSC) etc.
Correspondingly, in the TD-SCDMA system, the base station can be base-station node (Node B), then can also be base station (BS) etc. in other communication system.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (26)
1, the control method of a kind of discontinuous transmission DTX is characterized in that this method comprises:
Obtain the communication conditions information of current DTX user equipment (UE) under the cycle;
According to described communication conditions information, determine to satisfy the target DTX cycle of the link-quality of described UE;
The described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
2, the method for claim 1 is characterized in that, the communication conditions information of described UE is: the link quality information of the up and/or downlink transfer of UE.
3, method as claimed in claim 2 is characterized in that, and is described according to communication conditions information, and the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
If described link quality information greater than preset link quality information high threshold, is then turned down the current DTX cycle according to default decline step-length, the described DTX cycle after turning down is defined as the target DTX cycle.
4, method as claimed in claim 3, it is characterized in that, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if described link quality information is less than preset link quality information low threshold, then heighten the current DTX cycle, the described DTX cycle after heightening is defined as the target DTX cycle according to default rising step-length.
5, method as claimed in claim 4, it is characterized in that, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if described link quality information, determines then that the current DTX cycle is the target DTX cycle more than or equal to preset link quality information low threshold and smaller or equal to preset link quality information high threshold.
6, method as claimed in claim 2 is characterized in that, and is described according to communication conditions information, and the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
According to described link quality information, and the preset link quality information with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
As each described method in the claim 2 to 6, it is characterized in that 7, described link quality information is the average frame error rate in the Preset Time section.
8, the method for claim 1 is characterized in that, the communication conditions information of described UE is: the translational speed information indication of UE.
9, method as claimed in claim 8 is characterized in that, and is described according to communication conditions information, and the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
If described translational speed information indication less than default translational speed information indication low threshold, is then turned down the current DTX cycle according to default decline step-length in default time period or number of times, the described DTX cycle after turning down is defined as the target DTX cycle.
10, method as claimed in claim 9, it is characterized in that, if less than default translational speed information indication low threshold, this method further comprises in default time period or number of times in described translational speed information indication: turn down current translational speed information indication low threshold according to the certain proportion of default decline step-length.
11, method as claimed in claim 9, it is characterized in that, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if the indication of described translational speed information in default time period or number of times greater than default translational speed information indication high threshold, then heighten the current DTX cycle, the described DTX cycle after heightening is defined as the target DTX cycle according to default rising step-length.
12, method as claimed in claim 11, it is characterized in that, if greater than default translational speed information indication high threshold, this method further comprises: heighten current movement speed information indication low threshold and high threshold according to the certain proportion of default rising step-length in default time period or number of times in described translational speed information indication;
If less than default translational speed information indication low threshold, this method further comprises: turn down current movement speed information indication low threshold and high threshold according to the certain proportion of default decline step-length in default time period or number of times in described translational speed information indication.
13, method as claimed in claim 12, it is characterized in that, described according to communication conditions information, the target DTX cycle of determining to satisfy the link-quality of described UE further comprises: if the indication of described translational speed information in default time period or number of times more than or equal to default translational speed information indication low threshold and smaller or equal to default translational speed information indication high threshold, determine that then the current DTX cycle is the target DTX cycle.
14, method as claimed in claim 8 is characterized in that, and is described according to communication conditions information, and the target DTX cycle of determining to satisfy the link-quality of described UE comprises:
According to the indication of described translational speed information, and the indication of default translational speed information with satisfy the corresponding relation in the target DTX cycle of UE link-quality, determine the target DTX cycle.
As each described method in the claim 8 to 14, it is characterized in that 15, the translational speed information of described UE is designated as that UE moves the switching frequency that causes and/or UE moves decline soon frequency and/or the channel relevancy indication that causes.
16, method as claimed in claim 15 is characterized in that, the described UE of obtaining moves frequency and/or the channel relevancy indication that declines soon that causes and comprises: obtain base station measurement and the UE that reports moves decline soon frequency and/or the channel relevancy indication that causes;
And/or, obtain that UE measures and the UE that reports moves decline soon frequency and/or the channel relevancy indication that causes.
17, method as claimed in claim 16 is characterized in that, the described UE that obtains base station measurement and report further comprises before moving decline soon frequency and/or the channel relevancy indication that causes:
To base station transmission the carrying out indication of special measurement, the operation that the base station is carried out described measurement and reported according to described indication.
18, method as claimed in claim 17 is characterized in that, the described transmission to the base station carried out being designated as of special measurement:
Add the measurement item of decline soon frequency and/or channel relevancy indication in the special measurement type in special measurement initialization request message, send to the base station by carrying the described special measurement initialization request message of measuring item.
19, the control system of a kind of discontinuous transmission DTX is characterized in that this system comprises: user equipment (UE) and wireless network control unit, wherein,
Described wireless network control unit is used to obtain the communication conditions information of current DTX described UE under the cycle, according to described communication conditions information, determine to satisfy the target DTX cycle of the link-quality of described UE, the described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
20, system as claimed in claim 19 is characterized in that, the communication conditions information of described UE is: UE moves decline soon frequency and/or the channel relevancy indication that causes; This system further comprises:
The base station is used for that UE is moved frequency and/or the channel relevancy indication that declines soon that causes and measures, and decline soon frequency and/or the channel relevancy indication that measures reported described wireless network control unit.
21, a kind of wireless network control unit is characterized in that, this wireless network control unit comprises:
Acquisition module is used to obtain the communication conditions information of current DTX user equipment (UE) under the cycle;
The DTX period determination module is used for according to described communication conditions information, determines to satisfy the target DTX cycle of the link-quality of described UE;
The transmission process module is used for the described target DTX cycle is carried out discontinuous transmission as the current DTX cycle.
22, wireless network control unit as claimed in claim 21 is characterized in that, the communication conditions information of described UE is: the average frame error rate of the up and/or downlink transfer link of UE in the Preset Time section; Described acquisition module comprises:
Descending frame error rate processing module is used to receive the frame error rate of the downlink transfer link that UE reports, and described frame error rate is carried out smoothing processing in the Preset Time section, obtains average frame error rate;
And/or up frame error rate processing module is used to calculate the frame error rate of uplink link, and described frame error rate is carried out smoothing processing in the Preset Time section, obtains average frame error rate.
23, wireless network control unit as claimed in claim 22 is characterized in that, described DTX period determination module comprises:
Comparison module is used for described average frame error rate and the frame error rate high threshold of presetting are compared, and comparative result is notified to determination module;
Determination module is used for during greater than default frame error rate high threshold, turning down current DTX cycle according to default decline step-length in described average frame error rate, and the described DTX cycle after turning down is defined as the target DTX cycle.
24, wireless network control unit as claimed in claim 22 is characterized in that, described DTX period determination module comprises:
Memory module, the corresponding relation that is used to store default average frame error rate Yu satisfies the target DTX cycle of UE link-quality;
Determination module is used for according to described average frame error rate, and the described corresponding relation in the memory module, determines the target DTX cycle.
25, wireless network control unit as claimed in claim 21 is characterized in that, the communication conditions information of described UE is: the translational speed information indication of UE; Described DTX period determination module comprises:
Comparison module is used for indicating low threshold to compare described translational speed information indication and default translational speed information, and comparative result is notified to determination module;
Determination module, be used in the indication of described translational speed information in default time period or number of times during less than default translational speed information indication low threshold, turn down the current DTX cycle according to default decline step-length, the described DTX cycle after turning down is defined as the target DTX cycle.
26, wireless network control unit as claimed in claim 21 is characterized in that, described DTX period determination module comprises:
Memory module is used to store default translational speed information indication and satisfy the corresponding relation in the target DTX cycle of UE link-quality;
Determination module is used for according to described translational speed information indication, and the described corresponding relation in the memory module, determines the target DTX cycle.
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| CN200710175575A CN101399598B (en) | 2007-09-30 | 2007-09-30 | Control method, system for uncontinuous transmission and wireless network control unit |
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| CN200710175575A CN101399598B (en) | 2007-09-30 | 2007-09-30 | Control method, system for uncontinuous transmission and wireless network control unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101043A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Transmission control method, and transmission method and device |
| WO2014131187A1 (en) * | 2013-02-28 | 2014-09-04 | 华为技术有限公司 | Power control method and device |
| CN104349408A (en) * | 2013-07-28 | 2015-02-11 | 上海朗帛通信技术有限公司 | Community selection method in community DTX scene and device thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI104872B (en) * | 1997-04-11 | 2000-04-14 | Nokia Networks Oy | A method for controlling load on a mobile communication system |
| CN101043753B (en) * | 2006-03-25 | 2011-10-05 | 华为技术有限公司 | Method, network and user terminal for realizing variable discontinuous reception/discontinuous transmission period |
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2007
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101043A1 (en) * | 2012-12-27 | 2014-07-03 | 华为技术有限公司 | Transmission control method, and transmission method and device |
| WO2014131187A1 (en) * | 2013-02-28 | 2014-09-04 | 华为技术有限公司 | Power control method and device |
| CN104349408A (en) * | 2013-07-28 | 2015-02-11 | 上海朗帛通信技术有限公司 | Community selection method in community DTX scene and device thereof |
| CN104349408B (en) * | 2013-07-28 | 2019-03-08 | 上海朗帛通信技术有限公司 | Cell selecting method and device in a kind of cell DTX scene |
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| CN101399598B (en) | 2012-10-03 |
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