CN1154277C - Method for controlling compression mode according to power of mobile station - Google Patents
Method for controlling compression mode according to power of mobile station Download PDFInfo
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- CN1154277C CN1154277C CNB011223286A CN01122328A CN1154277C CN 1154277 C CN1154277 C CN 1154277C CN B011223286 A CNB011223286 A CN B011223286A CN 01122328 A CN01122328 A CN 01122328A CN 1154277 C CN1154277 C CN 1154277C
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- travelling carriage
- mobile station
- measurement
- compact model
- alien frequencies
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000006835 compression Effects 0.000 title abstract description 11
- 238000007906 compression Methods 0.000 title abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 44
- 238000004891 communication Methods 0.000 claims description 9
- 230000011664 signaling Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010295 mobile communication Methods 0.000 abstract description 6
- 108010003272 Hyaluronate lyase Proteins 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
Abstract
In a CDMA honeycomb mobile communication system, if a mobile station only has one radio-frequency receiver, a compression mode needs using if measurement between frequencies and measurement between systems are to be executed. But if the mobile station has a plurality of radio-frequency receivers, the compression mode does not need using for carrying out alien-frequency measurement and alien-system measurement. The compression mode increases interference in systems, results in system load increase through the power control action, and influences the capacity of the systems. The present invention puts forward a control method for starting a compression mode according to the capability of the mobile station, which can effectively decrease the influence of the compression mode on system performance.
Description
Technical field
The present invention relates to a kind of according to wireless communication field, the control method of compact model when referring in particular to hard cut measurement in the cdma cellular mobile communication system.
Background technology
CDMA is a kind of spread spectrum technic.Spread spectrum technic mainly applies to military communication in the early stage, because its remarkable performance also will obtain to use widely in the commercial communication field.Now there has been commercial cdma cellular mobile communication system to operate in the telecommunications network.
In the existing cell mobile communication systems,, make that the radio-frequency power of base station is confined within certain scope (sub-district) in the system for the utilance that improves frequency spectrum resource and the capacity of whole system.Enter the another one sub-district when travelling carriage leaves a sub-district, the signal of the original sub-district that this travelling carriage is received inevitable more and more a little less than, and its received signal that enters the sub-district will be more and more stronger just also.In order to keep the communication quality of travelling carriage, must switch to the stronger base station of signal that newly enters by original base station to continuing of this travelling carriage, the notion of switching in Here it is the cell mobile communication systems.
The distinguishing feature that the CDMA multi-access mode is different from the TDMA multi-access mode is exactly that different travelling carriages can use identical frequency, between the travelling carriage no longer by time slot but distinguished by different pseudo noise codes.Under fdd mode,, need measure the Target cell that switches in order to carry out alien frequencies direct-cut operation, FDD to the preparation that (as to GSM) switches between TDD switching and system.Under the CDMA fdd mode, if downstream signal takies in time always, then to receive descending data continuously, its receiver just can not receive the signal of other frequencies when receiving the work at present frequency signal.If UE has two cover transceivers, certainly carry out different-frequency measure very easily, but realize that like this cost is too high.If UE has only a cover transceiver, just need a kind of mechanism in the descending radio frames width of cloth, to produce certain idle time slot, Here it is compact model.
When using downlink compression mode, if the upstream frequency of UE launch always and measured frequency and upstream frequency between more approaching, then up tranmitting frequency may be disturbed by measured frequency, for the correctness that guarantees to measure, also needs up stopping to launch at this moment.Here it is uplink compressed mode.
Downlink compression mode is exactly to utilize various technology to form the transmission data " slit " of a period of time in the Frame of interface aloft, and in this section slit, the base station does not send any data, and travelling carriage does not receive this physical channel yet.As shown in Figure 1.Like this, travelling carriage just obtains a period of time " free time ", just its radio-frequency transmitter can be transformed into the target frequency that need to monitor, target frequency is measured and monitored, so that to the signal(l)ing condition of the in good time reporting objectives frequency of network, make network make correct switching judging.
In compact model, for " slit " of realizing transmitting, can adopt that spreading factor reduces by half, method such as punching and high arrangement layer.In uplink compressed mode, the punching hairdo can not be used, and downlink compression mode then can use above-mentioned three kinds of methods.
In downlink compression mode, when adopting spreading factor to reduce by half,, then need use to replace scrambler if father's sign indicating number of the original spreading code that uses can't distribute.Can realize the corresponding one by one of spreading code in the sub-district and replacement scrambler by mapping.But because the orthogonality of replacing between scrambler and other scrambler is relatively poor, when using the number of users of replacing scrambler to increase in the sub-district, can increase the interference between the user, influence the performance of system.
Secondly, spreading factor reduces by half under the mode, for the information that guarantees to send in the condensed frame width of cloth can correctly be received, generally the power of the radiating portion of the condensed frame width of cloth need be increased.The increase of transmitting power also can cause the increase of interference to a certain extent.Have, when adopting the spreading factor halving method to realize compact model, taken a sign indicating number resource, reduced the utilance of channel code, this kind situation is hour particularly evident at SF.In order to equal 4 o'clock realization compact models at spreading factor, punching and high arrangement layer dual mode have been introduced.Under the hole knockout, the emission slit of compact model obtains by the code efficiency that improves transmission channel.High arrangement layer then is by speed and the packed format to transmission channel limits on the upper strata, reduce the high-rise data traffic that is sent to physical layer, finally form the compact model frame format in physical layer by the rate-matched of bottom and the insertion of discontinuous emission indication bit.
It also can cause the increase of condensed frame transmitting power though the hole knockout upper strata is simple to operate.And it can be subjected to the influence in channel encoding characteristics, condensed frame slit etc.And bottom operation is simple during high arrangement layer, need not to increase transmitting power, need not to take a yard resource, but its use is subject to the combined characteristic of transmission channel and has increased high-rise affected complexity.
As can be seen from the above, compact model is bigger to the performance impact of system, if but the receiver of travelling carriage can receive the signal of a plurality of frequency ranges simultaneously, and so just need not to adopt compact model to carry out alien frequencies and isosystem measurement.Travelling carriage is the signal that can only receive a frequency simultaneously mostly at present, but the trend that the multi-receiver mobile phone develops after being.
Summary of the invention
Whether purpose of the present invention is exactly to control compact model according to the RF capabilities of travelling carriage to start, thereby reduces the influence to cell load, system interference and sign indicating number resource allocation of the influence that condensed frame is penetrated systematic function, especially compact model as far as possible.
It is to be divided into following steps and to finish carry out compact model or control method according to mobile station capability that technology of the present invention constitutes.At first, travelling carriage is linked into dedicated channel, inquire about travelling carriage overloading while receiving ability information frequently then, if travelling carriage supports that multi-carrier frequency signals receives simultaneously, then will be handed down to travelling carriage with the measurement control order of frequency, alien frequencies and isosystem measurement simultaneously, the order travelling carriage is monitored the quality of all adjacent cells; If travelling carriage does not support that multi-carrier frequency signals receives simultaneously, then only common frequency measurement is controlled signaling and send to travelling carriage, start common frequency measurement; When the communication cell signal quality descends, if do not carry out alien frequencies or isosystem measurement, then immediately to the up-to-date RF capabilities information of travelling carriage inquiry, if travelling carriage supports that multi-carrier frequency signals receives simultaneously, then issue alien frequencies or isosystem measurement control command and start alien frequencies or isosystem measurement, if do not support overloading to receive simultaneously frequently, then start compact model and carry out alien frequencies or isosystem measurement.
Description of drawings
For the present invention of energy more detailed description, be described further as follows with reference to following accompanying drawing:
Fig. 1: compact model frame structure of the present invention and transmitting power figure
Fig. 2: travelling carriage of the present invention inserts dedicated channel and measures control generation method flow diagram
Fig. 3: measure control change flow figure when mobile communications cell quality of the present invention descends
Embodiment
Referring to Fig. 1,, require the transmitting power of this moment to increase because the information for the radiating portion that guarantees condensed frame is correctly received when adopting spreading factor to reduce by half.If a large amount of travelling carriages is in compressed mode status, then can cause the increase of disturbing in the system, the use of replacing scrambler when spreading factor reduces by half in addition also can cause the increase of system interference, effect through power control may cause the lifting of transmitter power like this, thereby causes the increase of sub-district internal burden indirectly.
Based on above analysis, the present invention proposes a kind of method of carrying out compact model control according to mobile station capability.Be described in detail as follows to this method below:
Referring to Fig. 2, after travelling carriage is linked into dedicated channel, change the ability information that inquiry travelling carriage multiband receives simultaneously over to.At this moment, if travelling carriage supports that multi-carrier frequency signals receives simultaneously, then will be handed down to travelling carriage with the measurement control order of frequency, alien frequencies and isosystem measurement simultaneously, the order travelling carriage is monitored the quality of all adjacent cells.If travelling carriage does not support that multi-carrier frequency signals receives simultaneously, then only common frequency measurement is controlled signaling and send to travelling carriage, start common frequency measurement.Referring to Fig. 3, when the communication cell signal quality descends, if do not carry out alien frequencies or isosystem measurement, then immediately to the up-to-date RF capabilities information of travelling carriage inquiry.If travelling carriage supports that multi-carrier frequency signals receives simultaneously, then issue alien frequencies or isosystem measurement control command and start alien frequencies or isosystem measurement.If do not support overloading to receive simultaneously frequently, then start compact model and carry out alien frequencies or isosystem measurement.
Constitute in order to describe the technology of the present invention in detail, be described as follows in conjunction with the following example:
Embodiment 1
If travelling carriage communicates, be initially in common channel state in sub-district 1.Now because professional the change changes common signal channel over to, it is as follows that it measures the control change:
At first have or not the receiving ability information of this travelling carriage,, then inquire about this ability to travelling carriage by aerial signaling if do not have in the network side inquiry.
After obtaining this ability information, whether decision sends the measurement control signaling of alien frequencies and isosystem measurement, if travelling carriage does not support many class frequencys to receive simultaneously, then only issues common frequency measurement control, if support, then simultaneously will with frequently and the measurement of alien frequencies, different system control and issue.
Embodiment 2
If travelling carriage is communicated by letter in sub-district 1, current area 1 quality descends, and when being lower than a certain thresholding, travelling carriage upgrades that to measure control as follows:
Check at first whether this travelling carriage is carrying out alien frequencies or isosystem measurement,, then do not make an amendment,, then inquire about travelling carriage receiving ability information to travelling carriage by aerial signaling if do not have to measuring control if carrying out alien frequencies or isosystem measurement.
After obtaining this ability information, whether decision starts the measurement control signaling that compression sends alien frequencies and isosystem measurement.If travelling carriage does not support many class frequencys to receive simultaneously, then start the measurement that compact model carries out alien frequencies and different system cell.If the travelling carriage support, the measurement control that then issues alien frequencies, different system starts this two class and measures.
In sum, the compact model mode that adopts the present invention to select can reduce the influence of compact model to systematic function effectively.Travelling carriage then carries out can in time switching like this with frequency, alien frequencies and isosystem measurement as if supporting overloading to receive simultaneously frequently always, reduces probability of call.Inquiring about mobile station capability when the communication cell quality descends once more can in time carry out the measurement strategies adjustment according to mobile station capability, reduces to adopt the influence of compact model to systematic function.
Claims (5)
1, a kind of method of carrying out compact model control according to mobile station capability is characterized in that: this method is divided into following steps: at first, travelling carriage is linked into dedicated channel; Then, inquire about the ability information that the travelling carriage overloading receives frequently simultaneously; If travelling carriage supports that multi-carrier frequency signals receives simultaneously, then will be handed down to travelling carriage with the measurement control order of frequency, alien frequencies and isosystem measurement simultaneously, the order travelling carriage is monitored the quality of all adjacent cells; If travelling carriage does not support that multi-carrier frequency signals receives simultaneously, then only common frequency measurement is controlled signaling and send to travelling carriage, start common frequency measurement; When the communication cell signal quality descends, if do not carry out alien frequencies or isosystem measurement, then immediately to the up-to-date RF capabilities information of travelling carriage inquiry, if travelling carriage supports that multi-carrier frequency signals receives simultaneously, then issue alien frequencies or isosystem measurement control command and start alien frequencies or isosystem measurement, if do not support overloading to receive simultaneously frequently, then start compact model and carry out alien frequencies or isosystem measurement.
2, a kind of method of carrying out compact model control according to mobile station capability described in claim 1 is characterized in that: travelling carriage inserts dedicated channel and comprises that travelling carriage is called out direct access dedicated channel and travelling carriage changes dedicated channel over to from common signal channel.
3, a kind of method of carrying out compact model control according to mobile station capability described in claim 1, it is characterized in that: the mobile station capability inquiry can be carried out the inquiry signaling of capability report and be carried out by travelling carriage subsidiary transmission network requirement travelling carriage when inserting, or directly initiates to inquire about the signaling request travelling carriage by network and carry out capability report.
4, a kind of method of carrying out compact model control according to mobile station capability described in claim 1 is characterized in that: receive frequently if travelling carriage has the ability to carry out overloading, then allow travelling carriage carry out alien frequencies or isosystem measurement always; Select different-frequency measure or isosystem measurement to determine by network side.
5, a kind of method of carrying out compact model control according to mobile station capability described in claim 1, it is characterized in that: carrying out the mobile station capability inquiry when communication cell quality descends is to be initiated by network side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB011223286A CN1154277C (en) | 2001-06-27 | 2001-06-27 | Method for controlling compression mode according to power of mobile station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011223286A CN1154277C (en) | 2001-06-27 | 2001-06-27 | Method for controlling compression mode according to power of mobile station |
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| CN1394018A CN1394018A (en) | 2003-01-29 |
| CN1154277C true CN1154277C (en) | 2004-06-16 |
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| CNB011223286A Expired - Fee Related CN1154277C (en) | 2001-06-27 | 2001-06-27 | Method for controlling compression mode according to power of mobile station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595479A (en) * | 2011-01-10 | 2012-07-18 | 华为技术有限公司 | Frequency point information processing method and user equipment (UE) |
| US9398507B2 (en) | 2011-01-10 | 2016-07-19 | Huawei Technologies Co., Ltd. | Method and user equipment for processing frequency information |
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| US8102834B2 (en) | 2004-07-14 | 2012-01-24 | Zte Corporation | Method for reporting and managing wireless resources in TDM system |
| CN100370878C (en) * | 2004-09-23 | 2008-02-20 | 华为技术有限公司 | Control method of different frequency different system switchover |
| CN100433895C (en) * | 2004-10-22 | 2008-11-12 | 华为技术有限公司 | Pilot frequency and pilot system switching parallel control method |
| CN100441039C (en) * | 2005-03-31 | 2008-12-03 | 上海华为技术有限公司 | Switching method of mobile communication network different system |
| CN100442922C (en) * | 2005-06-13 | 2008-12-10 | 大唐移动通信设备有限公司 | Same-frequency measure reporting method for TDD-CDMA system |
| CN1953361B (en) * | 2005-10-18 | 2010-05-05 | 大唐移动通信设备有限公司 | A method and system for sending multiple carrier frequency signal |
| CN100355318C (en) * | 2005-10-24 | 2007-12-12 | 华为技术有限公司 | Measuring method of terminal different frequency/different system and its user terminal |
| CN101087440B (en) * | 2006-06-06 | 2010-05-12 | 大唐移动通信设备有限公司 | A method for data adjustment in mobile communication system |
| CN101094482B (en) * | 2006-06-23 | 2011-08-10 | 华为技术有限公司 | Method and system for measuring parameters in channels of neighboring areas |
| CN101360334B (en) * | 2007-08-01 | 2013-05-08 | 中兴通讯股份有限公司 | Wireless management method and system for multiple frequency band network |
| WO2010096968A1 (en) * | 2009-02-27 | 2010-09-02 | 华为技术有限公司 | Method, device and system for configuring and measuring compression mode parameters |
| JP5243658B2 (en) | 2009-03-18 | 2013-07-24 | ▲ホア▼▲ウェイ▼技術有限公司 | Method, apparatus, and system for obtaining load information |
| CN102083161A (en) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团广西有限公司 | Method, system for updating cell in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network and user equipment |
| CN102438272B (en) * | 2010-09-29 | 2015-05-20 | 中兴通讯股份有限公司 | Method and system for controlling start of compression mode |
-
2001
- 2001-06-27 CN CNB011223286A patent/CN1154277C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595479A (en) * | 2011-01-10 | 2012-07-18 | 华为技术有限公司 | Frequency point information processing method and user equipment (UE) |
| CN102595479B (en) * | 2011-01-10 | 2014-10-08 | 华为技术有限公司 | Frequency point information processing method and user equipment (UE) |
| US9398507B2 (en) | 2011-01-10 | 2016-07-19 | Huawei Technologies Co., Ltd. | Method and user equipment for processing frequency information |
| US10034216B2 (en) | 2011-01-10 | 2018-07-24 | Huawei Technologies Co., Ltd. | Method and user equipment for processing frequency information |
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| CN1394018A (en) | 2003-01-29 |
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