CN1360452A - Channel distribution method for multiple services at base station in GPS system - Google Patents
Channel distribution method for multiple services at base station in GPS system Download PDFInfo
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- CN1360452A CN1360452A CN 00127954 CN00127954A CN1360452A CN 1360452 A CN1360452 A CN 1360452A CN 00127954 CN00127954 CN 00127954 CN 00127954 A CN00127954 A CN 00127954A CN 1360452 A CN1360452 A CN 1360452A
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Abstract
The invention relates to a method for assigning channels for multi services on GSM base station. Sending signaling from base station controller to base station configures the base station. The characteristics are that the configuration is dynamic, including: (1) the base station receives the signaling from the base station controller, and changes the configuration on each channel in each carrier wave based on the parameters contained in the sinalling. (2) Various configurations are assigned, and bandwidth of relevant channel is adjusted through the base station controller in real time based on different type of services so as to guarantee the realization of GPRS service and EGPRS service after EDGE being expanded and upgraded.
Description
The present invention relates to the method for channel allocation of a kind of global system for mobile communications (hereinafter to be referred as GSM) multiple services at base station.
The GSM digital cellular mobile communication systems are a time division multiple access (TDMA) systems, and a carrier wave is shared (time division multiplexing) by 8 users.Time-multiplexed all 8 time division multiplexing time slots (Time Slot), i.e. 8 channels on this carrier wave need be handled simultaneously in the GSM base station when handling a carrier wave.Each channel all corresponding a kind of channel combination (channel combinations).This corresponding relation just configures initialized the time in the base station.Base-Band Processing need be carried out to each channel in the GSM base station, mainly is channel decoding.This work is normally finished by one or more digital signal processors (hereinafter to be referred as digital signal processor (DSP)) chip.
Existing base station is that one or more digital signal processors (DSP) are handled the channel of a carrier wave, and the bandwidth capacity of each channel occupancy is 16Kbps, is merely able to provide the data service of voice and arrowband.The capacity of hardware bus is distributed to each channel fifty-fifty in the base station, and each channel all is identical, and software also is to use fixing hardware resource.
Existing technology can't be served (hereinafter to be referred as EGPRS) by the enhanced general packet radio that base station controller (hereinafter to be referred as BSC) changes after configuration is supported wireless universal packet service (hereinafter to be referred as GPRS) and carried out EDGE expansion upgrading.EDGE is a kind of enhancing data rate function of supporting gsm system evolution, can improve data transfer rate on the base station radio interface.Because in base-band software, each channel capacity is assigned to fixed size, so the bandwidth of each channel can't expand, and also just can't provide gprs service and EGPRS business.In brief, in certain time range, on a carrier wave, if have only a channel in work, remaining channel all is in idle condition, and this channel can not utilize remaining idling-resource and expand it self bandwidth so, to support gprs service and EGPRS business.The method of this every channel fixed allocation bandwidth, although very simple in realization, under the situation of original voice and narrow band data business, practical can't adapt to the needs of gprs service and EGPRS business.
Multiple services method for channel allocation is carried out in a kind of GSM base station that the objective of the invention is to propose for the defective that solves above-mentioned prior art, and this method adopts the base station dynamic configuration method, supports that the multiple business in the gsm system is operated on the same platform.Except basic voice-and-data business, also support the application of gprs service and EGPRS business.
The technical scheme that realizes the object of the invention is: a kind of base station in GPS system is carried out multiple services method for channel allocation, by base station controller the base station is sent signaling, various configurations are carried out in the base station, it is characterized in that, size and disposal ability thereof according to the free memory resource of digital signal processor in the base station dispose dynamically to the base station, may further comprise the steps:
What 1) base station received that base station controller sends carries out the signaling of channel configuration to the parameter of different bandwidth;
2) base station judges according to the signaling of base station controller whether the current number word signal processor has enough free memory resources, if the free memory resource is enough, then the signaling according to base station controller increases the newly-increased needed memory headroom of Channel Processing; If the free memory resource is not enough, then do not support the requirement of base station controller signaling;
3) estimation simultaneously increases the processing capacity of the needed digital signal processor of channel newly;
4) estimate the processing capacity of the digital signal processor that existing channel is shared and the needed processing capacity of Added Business both handle the capacity sum, if both handle the capacity sum less than the total processing capacity of digital signal processor in the native system base station to the GSM channel for it, the base station can increase the desired business of base station controller signaling so, otherwise does not support;
5) the estimation of carrying out according to step 4) to the processing capacity of digital signal processor, the configuration of each channel in the every carrier wave of real time altering, digital signal processor sends signaling by the base station again and tells base station controller then, whether can receive the configuration of base station, after confirming, provide the professional channel that requires to base station controller;
6) base station controller is regulated the bandwidth of respective channel in the base station by the real-time configuration of base station; For dissimilar professional corresponding different bandwidth, support multiple services channel allocation.
The method for channel allocation of above-mentioned a kind of multiple services at base station in GPS system, wherein, the parameter of the different bandwidth described in the step 1) is meant needs the data volume handled in the various types of traffic of channel and the channel.
Because the present invention has adopted above technical scheme, compared with prior art, the present invention has following advantage:
(1) base station receives the signaling of base station controller, according to the parameter of the different bandwidth that this signaling comprised, changes the configuration of each channel in every carrier wave;
(2) by adjusting the configuration of Digital Signal Processing, and the ability of handling each channel, the data rate that each channel can be supported is changed, and reaches higher speed;
(3) base station controller is regulated the bandwidth of respective channel in the base station by the real-time configuration to the base station; Professional corresponding different bandwidth for dissimilar has enlarged capacity, has supported multiple services channel allocation.
Specific performance feature of the present invention is further specified by following embodiment.
In the existing technology, under the situation that the total capacity of hardware resource is fixed, the difference configuration that base-band software carries out the base station according to base station controller, this moment, the actual channel width of using was fixed, and total number of channels is also fixed.Adopt method of the present invention, the bandwidth of every channel is no longer fixed, but can change flexibly, its total number of channels also is variable.
The present invention is a kind of to carry out multiple services method for channel allocation to base station in GPS system, is that size and the disposal ability thereof according to the free memory resource of digital signal processor in the base station disposes dynamically to the base station, may further comprise the steps:
What 1) base station received that base station controller sends carries out the signaling of channel configuration to the parameter of different bandwidth; The parameter of this different bandwidth is meant needs the data volume handled in the various types of traffic of channel and the channel;
2) base station judges according to the signaling of base station controller whether the current number word signal processor has enough free memory resources, if the free memory resource is enough, then the signaling according to base station controller increases the newly-increased needed memory headroom of Channel Processing; If the free memory resource is not enough, then do not support the requirement of base station controller signaling;
3) estimation simultaneously increases the processing capacity of the needed digital signal processor of channel newly;
4) estimate the processing capacity of the digital signal processor that existing channel is shared and the needed processing capacity of Added Business both handle the capacity sum, if both handle the capacity sum less than the total processing capacity of digital signal processor in the native system base station to the GSM channel for it, the base station can increase the desired business of base station controller signaling so, otherwise does not support the requirement of base station controller signaling;
5) the estimation of carrying out according to step 4) to the processing capacity of digital signal processor, the configuration of each channel in the every carrier wave of real time altering, digital signal processor sends signaling by the base station again and tells base station controller then, whether can receive the configuration of base station, after confirming, provide the professional channel that requires to base station controller.
6) base station controller is regulated the bandwidth of respective channel in the base station by the real-time configuration of base station; For dissimilar professional corresponding different bandwidth, support multiple services channel allocation.
For example: if base station controller disposes by signaling, require the base station to provide a channel for certain user, its type of service is the CS-3 business of GPRS, and then DSP knows that the actual channel bandwidth of this business correspondence is 32Kbps.The base station checks at first whether current digital signal processor DSP has enough free memory resources after receiving configuration order.If have, then distribute a certain size internal memory, otherwise can't provide a channel for this business according to this type of service; Estimate the processing capacity of the newly-increased needed digital signal processor of channel simultaneously.The processing capacity and the needed processing capacity of Added Business that will have the shared digital signal processor of channel are again estimated, calculate the capacity sum of its both processing, if both handle the capacity sum less than the total processing capacity of digital signal processor in the native system base station to the GSM channel for it, the base station can increase the desired business of base station controller signaling so, otherwise does not support; After estimating for two resources above-mentioned, DSP is configured, and tells base station controller by the base station with signaling simultaneously, whether can receive the configuration of base station, and the professional channel that requires is provided.
Digital signal processor in the base station of the present invention, can handle the channel of one or more carrier waves, the bandwidth of each channel is dynamically assignable, its scope does not wait variation from 16Kbps, 32Kbps to 64Kbps, according to the concrete applicable cases of this channel, determine the concrete bandwidth in some time ranges.For example, in continuous A, B, three time ranges of C, a channel of certain carrier wave is that assignment successively uses for first, second, the third three users: at time range A, user's first is to make a phone call, use speech business, base-band software is just distributed to the bandwidth of this channel 16Kbps so; At time range B, user's second is used the CS-3 business of GPRS, and base-band software just must take the bandwidth of 32Kbps so; At time range C, user third uses the MCS-8 business of EGPRS, and then base-band software need take the hardware resource of 64Kbps bandwidth.From this example as can be seen, each channel of each carrier wave can both be supported GPRS and EGPRS business by the adjusting of bandwidth.But the supporting business that increases sees the following form:
| Professional | Type | ?AIUR | Speed on the Abis mouth |
| GPRS | ?CS-1 | ?9.05Kbps | Take a 16Kbps |
| ?CS-2 | ?13.4Kbps | Take a 16Kbps | |
| ?CS-3 | ?15.6Kbps | Take two 16Kbps | |
| ?CS-4 | ?21.4Kbps | Take two 16Kbps | |
| ?ECSD | ?data?E-TCH | ?28.8Kbps | Take two 16Kbps |
| ?data?E-TCH | ?32.0Kbps | Take three 16Kbps | |
| ?data?E-TCH | ?43.2Kbps | Take three 16Kbps | |
| ?EGPRS | ?MCS-1 | ?8.8Kbps | Take a 16Kbps |
| ?MCS-2 | ?11.2Kbps | Take a 16Kbps | |
| ?MCS-3 | ?14.8Kbps | Take a 16Kbps | |
| ?MCS-4 | ?17.6Kbps | Take two 16Kbps | |
| ?MCS-5 | ?22.4Kbps | Take two 16Kbps | |
| ?MCS-6 | ?29.6Kbps | Take two 16Kbps | |
| ?MCS-7 | ?44.8Kbps | Take four 16Kbps | |
| ?MCS-8 | ?54.4Kbps | Take four 16Kbps | |
| ?MCS-9 | ?59.2Kbps | Take four 16Kbps |
By last table as can be seen, the capacity of each channel was fixed as 16Kbps originally, can only support voice and the data service of arrowband; But after the base station was disposed dynamically, the capacity of each channel can be increased to original several times now, for example: 16Kbps, 32Kbps, 64Kbps, or the like.Based on these characteristics, base station controller BSC just can provide flexible services in different application scenarios.For example a baseband processing unit (digital signal processor) can be handled the MCS-8 business of 32 channels at most, and by dynamic configuration, its maximum channel number of handling the CS-1 business has been exactly 128.Each channel not only can provide the data service of voice and arrowband, can also support the professional and EGPRS business of 6PRS.
If the not enough situation of BTS channel number as long as increase base station processing unit hardware number simply, is aided with the configuration adjustment of BSC, just can finish System Expansion.The bandwidth of channel also can be configured by the BSC backstage in real time simultaneously, to realize the system convention of resource.
Claims (2)
1, a kind of base station in GPS system is carried out multiple services method for channel allocation, by base station controller the base station is sent signaling, various configurations are carried out in the base station, it is characterized in that, size and disposal ability thereof according to the free memory resource of digital signal processor in the base station dispose dynamically to the base station, may further comprise the steps:
What 1) base station received that base station controller sends carries out the signaling of channel configuration to the parameter of different bandwidth;
2) base station judges according to the signaling of base station controller whether the current number word signal processor has enough free memory resources, if the free memory resource is enough, then the signaling according to base station controller increases the newly-increased needed memory headroom of Channel Processing; If the free memory resource is not enough, then do not support the requirement of base station controller signaling;
3) estimation simultaneously increases the processing capacity of the needed digital signal processor of channel newly;
4) estimate the processing capacity of the digital signal processor that existing channel is shared and the needed processing capacity of Added Business both handle the capacity sum, if both handle the capacity sum less than the total processing capacity of digital signal processor in the native system base station to the GSM channel for it, the base station can increase the desired business of base station controller signaling so, otherwise does not support the requirement of base station controller signaling;
5) the estimation of carrying out according to step 4) to the processing capacity of digital signal processor, the configuration of each channel in the every carrier wave of real time altering, digital signal processor sends signaling by the base station again and tells base station controller then, whether can receive the configuration of base station, after confirming, provide the professional channel that requires to base station controller;
6) base station controller is regulated the bandwidth of respective channel in the base station by the real-time configuration of base station; For dissimilar professional corresponding different bandwidth, support multiple services channel allocation.
2, the multiple services method for channel allocation of a kind of base station in GPS system multicarrier according to claim 1, it is characterized in that the parameter of the different bandwidth described in the step 1) is meant needs the data volume handled in the various types of traffic of channel and the channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127954 CN1190980C (en) | 2000-12-19 | 2000-12-19 | Channel distribution method for multiple services at base station in GPS system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 00127954 CN1190980C (en) | 2000-12-19 | 2000-12-19 | Channel distribution method for multiple services at base station in GPS system |
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| CN1360452A true CN1360452A (en) | 2002-07-24 |
| CN1190980C CN1190980C (en) | 2005-02-23 |
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| CN 00127954 Expired - Fee Related CN1190980C (en) | 2000-12-19 | 2000-12-19 | Channel distribution method for multiple services at base station in GPS system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337436C (en) * | 2004-08-29 | 2007-09-12 | 华为技术有限公司 | A method of radio network controller configuration channel bandwidth |
| CN100411452C (en) * | 2006-03-08 | 2008-08-13 | 华为技术有限公司 | Method and system for modifying transmission bandwidth |
| CN100450031C (en) * | 2006-05-10 | 2009-01-07 | 华为技术有限公司 | Method for shared configuring cascade base-station transmission band width |
| CN100463553C (en) * | 2005-08-04 | 2009-02-18 | 中兴通讯股份有限公司 | Method for dispensing multiple-service channel |
| CN101409906B (en) * | 2007-10-10 | 2010-08-18 | 北京信威通信技术股份有限公司 | Method for reconfiguration of business in radio communication system |
| CN101459590B (en) * | 2007-12-10 | 2011-03-16 | 财团法人资讯工业策进会 | Bandwidth recovery method applied to communication system |
| CN101277531B (en) * | 2007-03-27 | 2012-04-25 | 日本电气株式会社 | Method of allocating resources in a radio base station apparatus |
| CN102440025A (en) * | 2011-10-11 | 2012-05-02 | 华为技术有限公司 | Service hierarchical method and device |
| CN101389055B (en) * | 2007-09-12 | 2012-09-05 | 中兴通讯股份有限公司 | Channel number maximum value regulating method |
| CN102668621A (en) * | 2009-12-25 | 2012-09-12 | 株式会社Ntt都科摩 | Radio base station system, radio base station control apparatus, number-of-accommodated-cells deciding program and number-of-accommodated-cells deciding method |
-
2000
- 2000-12-19 CN CN 00127954 patent/CN1190980C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337436C (en) * | 2004-08-29 | 2007-09-12 | 华为技术有限公司 | A method of radio network controller configuration channel bandwidth |
| CN100463553C (en) * | 2005-08-04 | 2009-02-18 | 中兴通讯股份有限公司 | Method for dispensing multiple-service channel |
| CN100411452C (en) * | 2006-03-08 | 2008-08-13 | 华为技术有限公司 | Method and system for modifying transmission bandwidth |
| CN100450031C (en) * | 2006-05-10 | 2009-01-07 | 华为技术有限公司 | Method for shared configuring cascade base-station transmission band width |
| CN101277531B (en) * | 2007-03-27 | 2012-04-25 | 日本电气株式会社 | Method of allocating resources in a radio base station apparatus |
| CN101389055B (en) * | 2007-09-12 | 2012-09-05 | 中兴通讯股份有限公司 | Channel number maximum value regulating method |
| CN101409906B (en) * | 2007-10-10 | 2010-08-18 | 北京信威通信技术股份有限公司 | Method for reconfiguration of business in radio communication system |
| CN101459590B (en) * | 2007-12-10 | 2011-03-16 | 财团法人资讯工业策进会 | Bandwidth recovery method applied to communication system |
| CN102668621A (en) * | 2009-12-25 | 2012-09-12 | 株式会社Ntt都科摩 | Radio base station system, radio base station control apparatus, number-of-accommodated-cells deciding program and number-of-accommodated-cells deciding method |
| CN102440025A (en) * | 2011-10-11 | 2012-05-02 | 华为技术有限公司 | Service hierarchical method and device |
| WO2012149799A1 (en) * | 2011-10-11 | 2012-11-08 | 华为技术有限公司 | Server layering method and device |
| CN102440025B (en) * | 2011-10-11 | 2015-05-27 | 华为技术有限公司 | Service hierarchical method and device |
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|---|---|
| CN1190980C (en) | 2005-02-23 |
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Granted publication date: 20050223 Termination date: 20161219 |