CN102752842B - Transmitting power control merging method during mobile terminal soft handover and mobile terminal - Google Patents
Transmitting power control merging method during mobile terminal soft handover and mobile terminal Download PDFInfo
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- CN102752842B CN102752842B CN201210207890.4A CN201210207890A CN102752842B CN 102752842 B CN102752842 B CN 102752842B CN 201210207890 A CN201210207890 A CN 201210207890A CN 102752842 B CN102752842 B CN 102752842B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 239000012141 concentrate Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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Abstract
A kind of transmitting power control merging method when the embodiment of the present invention provides mobile terminal soft handover and mobile terminal, the method comprises, carry out signal quality measured to each community that all wireless link set pairs are answered, determine according to measurement result to meet the wireless link collection selecting thresholding; To the wireless link collection corresponding to the wireless link collection selecting thresholding to choose and current Serving cell, carry out transmitting power control according to default power control algorithms and merge.The embodiment of the present invention is by selecting wireless link collection according to selection thresholding, then carry out transmitting power control to merge, finally obtain the transmitting power control commands of UE, this makes second-rate wireless link collection not carry out transmitting power control merging, thus evade because network side parameter configuration is unreasonable or poor wireless link collection is deleted UE transmitting power caused not in time and cannot the situation of lifting be occurred, decrease the generation of the situations such as UE step-out, dropped calls.
Description
Technical field
The present invention relates to wireless communication technology field, a kind of transmitting power control merging method when particularly relating to mobile terminal soft handover and mobile terminal.
Background technology
In order to reduce the interference between user, as far as possible the design of network reduces subscriber equipment (UserEquipment, UE) transmitting power, at Wideband Code Division Multiple Access (WCDMA) (WidebandCodeDivisionMultipleAccess, WCDMA) in, UE is in soft handover and under selecting the scene of power control algorithms 2, jointly TPC command is determined by the multiple wireless link collection entering soft handover, UE is 2-in-1 according to power control algorithms and the transmitting power of each wireless link collection controls (TransmitPowerControl, TPC), thus a TPC command.
In power control algorithms 2, every 5 time slots carry out a power and control, and for some wireless link collection, 5 continuous print time slots all to receive identical TPC command, just can reduce or lifting power; For multiple wireless link collection, as long as there is a wireless link collection requirement to reduce power, UE will reduce power, to reach the object reducing interference; Otherwise when needing the wireless link being greater than half to integrate as lifting power, UE ability lifting power; Otherwise it is constant that UE maintains existing power.
In the process realizing the embodiment of the present invention, as long as inventor finds the wireless link collection entering soft handover in prior art, be all used for carrying out TPC merging, wherein, wireless link collection comprises a service link collection and more than one non-service link collection.When non-service link collection dtr signal, the TPC command being difficult to guarantee 5 time slots is identical, the TPC command of final non-service link collection is made to be 0, and the TPC command that power control algorithms 2 requires to exceed the wireless link collection of half could lifting power when being 1, like this once the non-service link collection that there is more dtr signal, UE is difficult to lifting transmitting power, make the failure of NodeB (node B) uplink demodulation, cannot subsequent communications be carried out, finally cause the situation of UE step-out, dropped calls to occur.
Summary of the invention
A kind of transmitting power control merging method when the embodiment of the present invention provides mobile terminal soft handover and mobile terminal, do not carry out transmitting power control in order to make second-rate wireless link collection to merge, thus do not affect the possibility of UE lifting transmitting power, decrease the generation of the situations such as UE step-out, dropped calls.
The embodiment of the present invention provides a kind of transmitting power control merging method during mobile terminal soft handover, comprise: carry out signal quality measured to each community that all wireless link set pairs are answered, determine according to measurement result to meet the wireless link collection selecting thresholding, wherein, described selection thresholding is the threshold values preset according to signal quality, for concentrating the wireless link collection selected and participate in launching power control merging at all wireless links; By the wireless link collection chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge.
The embodiment of the present invention provides a kind of mobile terminal, comprise: the first functional module, each community for answering all wireless link set pairs is carried out signal quality measured, determine according to measurement result to meet the wireless link collection selecting thresholding, wherein, described selection thresholding is the threshold values preset according to signal quality, for concentrating the wireless link collection selected and participate in launching power control merging at all wireless links; Second functional module, for the wireless link collection will chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge.
Transmitting power control merging method during the mobile terminal soft handover that the embodiment of the present invention provides and mobile terminal, by selecting thresholding, the transmitting power control of the wireless link collection corresponding to wireless link collection higher for the quality chosen and current Serving cell is merged, finally obtain the transmitting power control commands of UE, this makes second-rate wireless link collection not carry out transmitting power control merging, thus evade because network side parameter configuration is unreasonable or poor wireless link collection is deleted UE transmitting power caused not in time and cannot the situation of lifting be occurred, decrease UE step-out, the generation of the situations such as dropped calls.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the transmitting power control merging method during mobile terminal soft handover that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of the transmitting power control merging method during mobile terminal soft handover that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the mobile terminal that Fig. 3 provides for the embodiment of the present invention one;
The structural representation of the mobile terminal that Fig. 4 provides for the embodiment of the present invention two.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Transmitting power control during the mobile terminal soft handover that Fig. 1 provides for one embodiment of the invention merges method flow diagram, and as shown in Figure 1, the method for the present embodiment comprises the steps:
Step 101, carries out signal quality measured to each community that all wireless link set pairs are answered, and determines to meet the wireless link collection selecting thresholding according to measurement result;
Soft handover is that mobile terminal is from a cell merge to another community, mobile terminal is in the process of soft handover, can be connected with more than one community in and above NodeB, wherein the connecting link of mobile terminal and each community is called wireless link, and the set belonging to the wireless link in same NodeB is called wireless link collection.When first soft handover carrying out to mobile terminal and mobile terminal each community of having all wireless link set pairs of annexation to answer for representing that the performance parameter of signal quality is measured, for representing that the performance parameter of cell signal quality can be received signal code power (ReceivedSignalCodePower, RSCP), Ec/N0 (ratio of chip energy and total interfering energy density) etc.The signal quality performance parameter that one of ordinary skill in the art will appreciate that measured community is the parameter that can reflect cell signal quality quality, does not limit at this.The quality height of each wireless link collection can be obtained by each measured cell signal quality, thus determine to meet the wireless link collection selecting the quality of thresholding higher.Wherein, described selection thresholding is the threshold value preset according to signal quality, for concentrating the wireless link collection selected and participate in launching power control merging at all wireless links.One of ordinary skill in the art will appreciate that, the value that described default threshold values pre-sets according to factors such as the experiences of the performance parameter of expression cell signal quality measured, application scenarios and those of ordinary skill in the art, the value pre-set with this can distinguish the height of wireless link collection quality for boundary value.
Step 102, by the wireless link collection chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge.
Select thresholding according to measured accordingly for representing that the performance parameter of signal quality is selected, do not meet and select the quality of the wireless link collection of thresholding lower, this wireless link collection does not carry out transmitting power control and merges; Meet and select the quality of the wireless link collection of thresholding higher, select this wireless link collection to carry out transmitting power control and merge; Wherein, no matter provide the wireless link collection corresponding to Serving cell of main service whether to meet select thresholding to mobile terminal, all select this wireless link collection to carry out transmitting power control to merge, because the transfer of data of mobile terminal depends on this Serving cell, if TPC merging do not participated in by the wireless link collection corresponding to this Serving cell can cause greater risk to the transfer of data of HSDPA (HighSpeedDownlinkPacketAccess, high-speed slender body theory).Finally merge according to the transmitting power control of default power control algorithms to the wireless link collection corresponding to selected each wireless link collection out and current Serving cell the TPC command obtaining mobile terminal UE.
In the present embodiment, default power control algorithms is specially, if the transmitting power control commands that at least one wireless link set pair is answered represents power of will begging to surrender, then described mobile terminal carries out falling Power Processing; If the transmitting power control commands that the wireless link set pair exceeding half is answered represents require power per liter, then described mobile terminal carries out power per liter process.
Transmitting power control merging method during the mobile terminal soft handover that the present embodiment provides, by determining to meet the wireless link collection selecting thresholding, then the transmitting power control of the wireless link collection corresponding to wireless link collection higher for the quality of the satisfied selection thresholding chosen and current Serving cell is merged, finally obtain the transmitting power control commands of UE, this makes second-rate wireless link collection not carry out transmitting power control merging, thus evade because network side parameter configuration is unreasonable or poor wireless link collection is deleted UE transmitting power caused not in time and cannot the situation of lifting be occurred, decrease UE step-out, the generation of the situations such as dropped calls.
The schematic flow sheet of the transmitting power control merging method during mobile terminal soft handover that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, the method for the present embodiment comprises the steps:
Step 201, the Ec/N0 information of each community that all wireless link set pairs are answered is measured, choosing each wireless links according to measurement result concentrates maximum Ec/N0 as the reference identification of this wireless link collection, and the maximum chosen in the reference identification corresponding to each wireless links collection is as maximum reference identification;
In the present embodiment, selecting Ec/N0 as the performance parameter of the expression signal quality of community, because Ec/N0 not only embodies the intensity of signal but also can show interference level, is a parameter that comprehensively can represent community signal to noise ratio; Wherein, every frame that is measured as of the Ec/N0 of each community is carried out once, a filtering process is also carried out to the every frame of the measurement result of gained, larger fluctuation is there is to avoid cell signal, be specially 1/2alpha filtering process, the result of calculation of gained present frame Ec/N0 is: the summation of 1/2nd values of the Ec/N0 that 1/2nd values of the Ec/N0 that former frame calculates and present frame measurement obtain.Choose the reference identification of maximum Ec/N0 as this wireless link collection that each wireless links concentrates community, because the value of the Ec/N0 of community is larger, illustrate that the signal of community is better, if the quality of the community that wireless link concentrates signal best is undesirable, then this wireless link concentrates the quality of other community also undesirable, comprehensive, the quality of this wireless link collection is lower; And the maximum chosen in the reference identification corresponding to each wireless links collection is as maximum reference identification, namely the best wireless link collection of each wireless link lumped mass wireless link collection is as a reference chosen, if the mass difference of the wireless link collection of the quality of wireless link collection and reference is comparatively far away, then TPC merging do not participated in by this wireless link collection.
Step 202, determines the wireless link collection participating in launching power control merging;
In the present embodiment, the reference identification that the wireless link set pair not participating in launching power control merging is answered is less than the first threshold values-18 decibels (dB), and/or the absolute value of described reference identification and described maximum reference identification difference is greater than the second threshold values 8dB.
One of ordinary skill in the art will appreciate that, to the measuring intervals of TIME of Ec/N0, filter processing method and coefficient, the first threshold values and the second threshold values all according to the mobile terminal of reality and scene different, therefore, the present invention does not limit at this.
Step 203, by the wireless link collection chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge.
The reference identification of answering when wireless link set pair is less than-18dB, illustrate that the quality of this wireless link collection is lower, this wireless link collection does not participate in TPC and merges, the reference identification of answering when wireless link set pair and the absolute value of described maximum reference identification difference are greater than 8dB, illustrate that the quality of this wireless link collection is lower, this wireless link collection does not participate in TPC and merges, wherein, no matter the reference identification providing the wireless link set pair corresponding to the Serving cell of main service to answer to mobile terminal is how many, all select this wireless link collection to participate in TPC to merge, because the transfer of data of mobile terminal depends on this Serving cell, can to HSDPA (HighSpeedDownlinkPacketAccess if TPC merging do not participated in by the wireless link collection corresponding to this Serving cell, high-speed slender body theory) transfer of data cause greater risk.Finally merge according to the transmitting power control of default power control algorithms to the wireless link collection corresponding to selected each wireless link collection out and current Serving cell the TPC command obtaining mobile terminal UE.
In the present embodiment, default power control algorithms is specially, if the transmitting power control commands that at least one wireless link set pair is answered represents power of will begging to surrender, then described mobile terminal carries out falling Power Processing; If the transmitting power control commands that the wireless link set pair exceeding half is answered represents require power per liter, then described mobile terminal carries out power per liter process.
The transmitting power control merging treatment method that the present embodiment provides, adopt and measure the quality that Ec/N0 weighs wireless link collection, do not carry out transmitting power control by the second-rate wireless link collection that the second-rate wireless link collection making Ec/N0 lower is lower with relative Ec/N0 to merge, and the transmitting power control of the wireless link collection corresponding to wireless link collection higher for the quality of the satisfied selection thresholding chosen and current Serving cell is merged, finally obtain the transmitting power control commands of UE, this makes second-rate wireless link collection not carry out transmitting power control merging, thus evade because network side parameter configuration is unreasonable or poor wireless link collection is deleted UE transmitting power caused not in time and cannot the situation of lifting be occurred, decrease UE step-out, the generation of the situations such as dropped calls.
The structural representation of the mobile terminal that Fig. 3 provides for the embodiment of the present invention one, as shown in Figure 3, this transmitting power control merging treatment mobile terminal comprises the first functional module 11 and the second functional module 12, wherein, first functional module 11 is carried out signal quality measured for each community of answering all wireless link set pairs, determine according to measurement result to meet the wireless link collection selecting thresholding, wherein, described selection thresholding is the threshold values preset according to signal quality, for concentrating the wireless link collection selected and participate in launching power control merging at all wireless links; The wireless link collection of the second functional module 12 for choosing according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge.Wherein, default power control algorithms is specially, if the transmitting power control commands that at least one wireless link set pair is answered represents power of will begging to surrender, then described mobile terminal carries out falling Power Processing; If the transmitting power control commands that the wireless link set pair exceeding half is answered represents require power per liter, then described mobile terminal carries out power per liter process.
The mobile terminal that the present embodiment provides may be used for the technical scheme performing embodiment of the method shown in above-mentioned Fig. 1, and it is similar that it realizes philosophy and technique effect, repeats no more herein.
The structural representation of the mobile terminal that Fig. 4 provides for the embodiment of the present invention two, as shown in Figure 4, the mobile terminal that the present embodiment provides is on the basis of the mobile terminal shown in Fig. 3, further, described first functional module 11 comprises: first module 111 and second unit 112, wherein, first module 111, Ec/N0 information for each community of answering all wireless link set pairs is measured, choosing each wireless links according to measurement result concentrates maximum Ec/N0 as the reference identification of this wireless link collection, and the maximum chosen in the reference identification corresponding to each wireless links collection is as maximum reference identification, second unit 112, for determining the wireless link collection participating in launching power control merging, the absolute value that the reference identification that the wireless link set pair not participating in launching power control merging is answered is less than the first threshold values and/or described reference identification and described maximum reference identification difference is greater than the second threshold values.
In the present embodiment, first module 111 comprises the first subelement and the second subelement.Particularly, the first subelement, the Ec/N0 for each community of answering all wireless link set pairs carries out measurement and obtains measurement result, and carries out 1/2ahpla filtering process to described measurement result; Second subelement, concentrates maximum Ec/N0 as the reference identification of this wireless link collection for choosing a wireless link according to described measurement result, and the maximum chosen in each reference identification corresponding to wireless link collection is as maximum reference identification.
The mobile terminal of the present embodiment specifically can perform the technical scheme shown in Fig. 2, and it realizes principle and technique effect is similar, repeats no more herein.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. launch power control merging method for one kind, merge for transmitting power control TPC during mobile terminal soft handover, it is characterized in that, comprising:
Carry out signal quality measured to each community that all wireless link set pairs are answered;
Determine according to measurement result to meet the wireless link collection selecting thresholding, wherein, described selection thresholding is the threshold value preset according to signal quality, for concentrating the wireless link collection selected and participate in transmitting power control and merge at all wireless links;
By the wireless link collection chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge;
Described default power control algorithms comprises:
If the transmitting power control commands having at least a wireless links set pair to answer represents power of will begging to surrender, then described mobile terminal carries out falling Power Processing;
If the transmitting power control commands that the wireless link set pair exceeding half is answered represents require power per liter, then described mobile terminal carries out power per liter process;
Wherein, describedly carry out signal quality measured to each community that all wireless link set pairs are answered, determine to meet according to measurement result and select the wireless link collection of thresholding to comprise:
The Ec/N0 information of each community that all wireless link set pairs are answered is measured, choosing each wireless links according to measurement result concentrates maximum Ec/N0 as the reference identification of this wireless link collection, and the maximum chosen in the reference identification corresponding to each wireless links collection is as maximum reference identification;
Determine the wireless link collection participating in launching power control merging; The absolute value of the reference identification that the wireless link set pair not participating in launching power control merging is answered and described maximum reference identification difference is greater than Second Threshold.
2. method according to claim 1, is characterized in that, the described Ec/N0 to each community that all wireless link set pairs are answered also comprises after carrying out measurement acquisition measurement result:
1/2alpha filtering process is carried out to described measurement result.
3. a mobile terminal, is characterized in that, comprising:
First functional module, each community for answering all wireless link set pairs is carried out signal quality measured, determine according to measurement result to meet the wireless link collection selecting thresholding, wherein, described selection thresholding is the threshold values preset according to signal quality, for concentrating the wireless link collection selected and participate in launching power control merging at all wireless links;
Second functional module, for the wireless link collection will chosen according to described selection thresholding, and the wireless link collection corresponding to current Serving cell, carry out transmitting power control according to default power control algorithms and merge;
Described default power control algorithms comprises:
If the transmitting power control commands having at least a wireless links set pair to answer represents power of will begging to surrender, then described mobile terminal carries out falling Power Processing;
If the transmitting power control commands that the wireless link set pair exceeding half is answered represents require power per liter, then described mobile terminal carries out power per liter process;
Wherein, described first functional module comprises:
First module, Ec/N0 information for each community of answering all wireless link set pairs is measured, choosing each wireless links according to measurement result concentrates maximum Ec/N0 as the reference identification of this wireless link collection, and the maximum chosen in the reference identification corresponding to each wireless links collection is as maximum reference identification;
Second unit, for determining the wireless link collection participating in launching power control merging; The absolute value of the reference identification that the wireless link set pair not participating in launching power control merging is answered and described maximum reference identification difference is greater than Second Threshold.
4. mobile terminal according to claim 3, is characterized in that, described first module comprises:
First subelement, the Ec/N0 for each community of answering all wireless link set pairs carries out measurement and obtains measurement result, and carries out 1/2alpha filtering process to described measurement result;
Second subelement, concentrates maximum Ec/N0 as the reference identification of this wireless link collection for choosing a wireless link according to described measurement result, and the maximum chosen in each reference identification corresponding to wireless link collection is as maximum reference identification.
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| CN201210207890.4A CN102752842B (en) | 2012-06-21 | 2012-06-21 | Transmitting power control merging method during mobile terminal soft handover and mobile terminal |
| PCT/CN2013/077667 WO2013189307A1 (en) | 2012-06-21 | 2013-06-21 | Method of combining transmission power control during soft handover of mobile terminal, and mobile terminal |
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| CN201210207890.4A CN102752842B (en) | 2012-06-21 | 2012-06-21 | Transmitting power control merging method during mobile terminal soft handover and mobile terminal |
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| CN102752842B true CN102752842B (en) | 2016-03-09 |
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| CN102752842B (en) * | 2012-06-21 | 2016-03-09 | 华为技术有限公司 | Transmitting power control merging method during mobile terminal soft handover and mobile terminal |
| CN104661298A (en) * | 2013-11-25 | 2015-05-27 | 华为技术有限公司 | Power control processing method, user equipment and base station |
| CN105451318A (en) * | 2014-07-31 | 2016-03-30 | 展讯通信（上海）有限公司 | Transmitting power control system and method and mobile terminal |
| US9949260B2 (en) * | 2015-10-23 | 2018-04-17 | Futurewei Technologies Co., Ltd. | Apparatus and method for transmit power control command transmission |
| EP3487225B1 (en) | 2016-08-12 | 2022-10-12 | Huawei Technologies Co., Ltd. | Nb-iot cell reselection method and network devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520061A (en) * | 2002-12-30 | 2004-08-11 | Lg电子株式会社 | Method and appts. for controlling radio link power |
| CN1859786A (en) * | 2006-03-28 | 2006-11-08 | 华为技术有限公司 | Method for processing up link power unbalance |
| CN101635971A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Soft switching method, soft switching system, radio network controller and base station |
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| US7657278B2 (en) * | 2005-07-27 | 2010-02-02 | Interdigital Technology Corporation | Method and apparatus for deriving a combined transmit power control command during handover |
| CN102752842B (en) * | 2012-06-21 | 2016-03-09 | 华为技术有限公司 | Transmitting power control merging method during mobile terminal soft handover and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520061A (en) * | 2002-12-30 | 2004-08-11 | Lg电子株式会社 | Method and appts. for controlling radio link power |
| CN1859786A (en) * | 2006-03-28 | 2006-11-08 | 华为技术有限公司 | Method for processing up link power unbalance |
| CN101635971A (en) * | 2009-08-28 | 2010-01-27 | 华为技术有限公司 | Soft switching method, soft switching system, radio network controller and base station |
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