CN100455077C - Method for processing assistant service channel burst - Google Patents
Method for processing assistant service channel burst Download PDFInfo
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- CN100455077C CN100455077C CNB200510077278XA CN200510077278A CN100455077C CN 100455077 C CN100455077 C CN 100455077C CN B200510077278X A CNB200510077278X A CN B200510077278XA CN 200510077278 A CN200510077278 A CN 200510077278A CN 100455077 C CN100455077 C CN 100455077C
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Abstract
The present invention discloses a method for processing assistant service channel burst, which comprises that when a new burst request occurs before the end of the last burst, a base station controller determines the burst rate according to sources of plot load, strength of pilot frequency and Walsh code, sends the rate determined to a receiving-sending machine of the base station, and then executes steps as follows. The receiving-sending machine carries out pre-distribution to the sources according to transmission direction of data and change of the rate; the distributed source is preoccupied; data transmission of the next burst is started before the end of the last burst. The present invention guarantees that data is transmitted continually, even if the rate is changed so as to reduce the clearance of the data transmission in maximum and increase the efficiency of the data transmission.
Description
Technical field
The present invention relates to a kind of network communications technology, relate in particular to a kind of method of handling assistant service channel burst.
Background technology
In CDMA (code division multiple access) system, high-speed data service adopts SCH (the attached Traffic Channel that helps) burst form to realize.BSC (base station controller) issues burst rate BTS (base station transceiver) then according to cell load, district pilots intensity and Walsh sign indicating number resource unified distribution burst rate, and BTS distributes CE (channel element) resource and carries out the resource preemption; BSS (base station system) and MS (travelling carriage) begin to carry out data traffic transmission in the time of agreement, and continue identical duration.
In the prior art, the method for handling assistant service channel burst has following three kinds, now respectively it is simply introduced.
1, quick dynamic assignment method.This method is that resource is all redistributed in each burst, during redistributing resource, utilizes Signalling exchange fast can reduce blanking time between burst, can reduce the interval between the t3 to t4 as shown in Figure 1.This processing method is simple.
Yet this method is happening suddenly all life period at interval at every turn, the interval between the t4 to t5 as shown in Figure 1, thereby can reduce the average data burst rate.
2, static allocation.There is not the time interval between the data burst in this method, just sets up a channel during call setup, waits until just to discharge this channel when this user withdraws from always, can guarantee that like this this user's transmission rate is very high.
Yet,, cause resource utilization not high because this method takies resource for a long time by a user.
3, constant rate of speed continuity.Under the situation of equivalent data rates, before finishing, last secondary data burst begins data burst next time, and then transfer of data does not need to interrupt, and once continues transmission before can being right after.If be by with a kind of speed rates always, this scheme can reach the laser propagation effect of " scheme two: static allocation ".
The shortcoming of this method is: still have one section space when variable Rate, the interval between the t3 to t5 as shown in Figure 1 makes that the utilance of resource is still lower.
In sum, in the prior art, all exist utilization ratio of wireless resources lower, thereby cause the average data burst capability of system not high, reduced the data-handling capacity of system.
Summary of the invention
At the above-mentioned defective of prior art, the purpose of this invention is to provide a kind of method of handling assistant service channel burst, improved the average data disposal ability of utilization ratio of wireless resources and system.
The present invention is achieved through the following technical solutions, and the invention provides a kind of method of handling assistant service channel burst, comprising:
When before last once burst end, new burst request being arranged, execution in step:
C, transceiver are according to the transmission direction of data, and the rate variations that the speed of last burst allocation and the new burst that receives need distribute is carried out preassignment to resource;
D, when resource allocation when success, the resource of being distributed is taken in advance, adopt the resource that takies in advance to carry out transfer of data when speed changes.
Also comprise before the described step C:
A, base station controller are determined burst rate according to cell load, district pilots intensity and Walsh sign indicating number resource;
B, base station controller are issued base station transceiver with determined speed.
Described step C further comprises: when data transfer direction is forward direction, and execution in step:
C1, according to rate variations, resource is carried out preassignment.
Described step C1 further comprises:
When the assistant service channel speed of this secondary burst is higher than the speed of current assistant service channel,
If there is the new speed of enough channel element resource supports on the channel element resource section both sides that current assistant service channel takies, execution in step:
C11, directly in advance take described channel element in advance, treat to use when speed changes described channel element; Otherwise, execution in step:
C12, distribute new channel element resource section again in advance for current burst.
Described step C1 further comprises: when the forward direction assistant service channel speed of this secondary burst is lower than the forward direction assistant service channel speed of preceding sub-distribution, directly take the channel element resource section of original distribution in advance.
Described method also comprises: treat to discharge when speed changes unnecessary CE resource.
When the assistant service channel speed of this secondary burst is higher than the speed of current assistant service channel, also carried out before execution in step C: base station controller sends resource inquiry information to base station transceiver, and base station transceiver returns the maximum rate that its resource situation is supported to base station controller then.
Described step C also comprises: less speed in base station controller employing speed that base station transceiver returned and the determined speed of base station controller, and to base station transceiver application resource.
Described step D also comprises: when resource allocation was failed, current burst adopted former speed to begin the transfer of data of this secondary burst immediately.
Described step C further comprises: when data transfer direction for the back to the time, new burst directly takies old channel element resource in advance, the raising speed rate is then added the idle channel element resource.
Described step C further comprises: when data transfer direction for the back to the time, new burst directly takies old channel element resource in advance, the reduction of speed rate is the unnecessary channel element resource of release when speed changes then.
According to the present invention, this invention has guaranteed also can make when speed changes transfer of data continuity to carry out, thereby the efficient of transfer of data has been improved in the gap of having reduced transfer of data to greatest extent.
Description of drawings
Fig. 1 shows the schematic diagram of prior art burst;
Flow chart when Fig. 2 shows burst;
Forward direction variable Rate CE before Fig. 3 shows burst rate when this sub-distribution and is higher than during the burst rate of sub-distribution distributes schematic diagram;
Another of forward direction variable Rate CE before Fig. 4 shows burst rate when this sub-distribution and is higher than during the burst rate of sub-distribution distributes schematic diagram;
The optimization flow chart of treatment S CH when Fig. 5 shows the raising speed rate.
Embodiment
Understand and realization the present invention the existing embodiments of the invention of describing in conjunction with the accompanying drawings for the ease of persons skilled in the art.
Basic thought of the present invention is: when SCH burst needs to change transmission rate, carry out resource allocation in advance and take in advance, treat directly to transmit with new speed when new burst begins, thereby the efficiency of transmission of SCH has been improved in the space when having removed variable Rate.Particularly, as shown in Figure 2, when BSC receives burst service before last once burst end, at first determine the speed of burst, then, with rate notification BTS, make BTS according to rate-allocation CE resource, BTS feeds back to BSC with the result of CE resource distribution, and BSC is also with information such as speed notices MS, make MS according to this information by carrying out transfer of data between BTS and the BSC.To describe the method for treatment S CH burst of the present invention below in detail.
According to the present invention, when before last once burst end, initiating new burst.Carry out resource allocation, reverse SCH is illustrated respectively before dividing below, and every kind of situation will consider that all the SCH burst changes to low rate by two-forty and low rate changes to two kinds of situations of two-forty.
1, forward direction variable Rate allocation algorithm
In order to reduce the variation of prior art as far as possible, the CE resource under the forward direction situation is taked continuous dispensing.
(1) the SCH speed of sub-distribution before the SCH speed of this sub-distribution is higher than
When the speed of this sub-distribution is higher than the speed of preceding sub-distribution, need to increase the CE resource.According to the present invention, preferentially, as shown in Figure 3, on existing CE resource base, append CE, if there is the new speed of enough CE resources support on the CE resource section both sides that current SCH takies, then directly take in advance, treat to use when speed changes; As shown in Figure 4, if when the CE resource section both sides that current SCH takies do not have the new speed of enough CE resources support, then need to distribute new CE resource section again in advance for current burst.At this moment because the CE resource section of preceding secondary burst also in use, therefore can not discharge immediately, wait for when using new CE resource section (this resource section does not have the business use in other words), discharging old CE resource section when speed changes.
(2) the SCH speed of sub-distribution before the SCH speed of this sub-distribution is lower than
The speed of this sub-distribution is lower than the speed of preceding sub-distribution, directly takies the CE resource section of original distribution, treats to discharge when speed changes unnecessary CE resource.
2, reverse variable Rate allocation algorithm
New burst can directly take old CE resource, and the raising speed rate is then added idle CE resource, and the reduction of speed rate then discharges unnecessary CE resource when speed changes.
3: the optimization flow process of treatment S CH during the raising speed rate
As shown in Figure 5, when this subrate of SCH carries out resource request greater than the speed of current SCH, may cause distributing the situation of failure because of the CE inadequate resource.In order to reduce the resource allocation mortality, before the raising speed rate, in step 1, BSC can send query messages to BTS, and in step 2, BTS returns the assignable maximum rate of its resource situation to BSC after receiving this query messages.In step 3, BSC is according to the assignable maximum rate that returns with according to cell load, district pilots intensity and the determined burst rate of Walsh sign indicating number resource, get the speed of wherein less speed then, and send the call resources request to BTS according to determined new burst rate as new burst.
If the resource allocation failure, in step 4, BTS carries the maximum rate that can support in failed message, and auxiliary BSC decision is the speed of secondary burst down, and in step 5, then new burst is still by original speed rates.If the maximum rate that can support entrained in failure information is greater than original speed, in step 6, when pass transfer of data next time, enable speed entrained in the failure information and carry out resource bid, again step 4 is to 6, till resource allocation success or transfer of data are finished.
If be allocated successfully, then use the determined new burst rate of BSC to carry out transfer of data.
According to the present invention, this invention has guaranteed also can make when speed changes transfer of data continuity to carry out, thereby the efficient of transfer of data has been improved in the gap of having reduced transfer of data to greatest extent.
Though described the present invention by embodiment, those of ordinary skills know, without departing from the spirit and substance in the present invention, just can make the present invention that many distortion and variation are arranged, and scope of the present invention is limited to the appended claims.
Claims (10)
1. a method of handling assistant service channel burst is characterized in that, comprising:
When before last once burst end, new burst request being arranged, execution in step:
A, base station controller are determined burst rate according to cell load, district pilots intensity and Walsh sign indicating number resource;
B, base station controller are issued base station transceiver with determined speed;
C, transceiver are according to the transmission direction of data, and the rate variations that the speed of last burst allocation and the new burst that receives need distribute is carried out preassignment to resource;
D, when resource allocation when success, the resource of being distributed is taken in advance, adopt the resource that takies in advance to carry out transfer of data when speed changes.
2. the method for processing assistant service channel burst according to claim 1 is characterized in that, described step C further comprises:
When data transfer direction is forward direction, execution in step:
C1, according to rate variations, resource is carried out preassignment.
3. the method for processing assistant service channel burst according to claim 2 is characterized in that, described step C1 further comprises:
When the assistant service channel speed of this secondary burst is higher than the speed of current assistant service channel,
If there is the new speed of enough channel element resource supports on the channel element resource section both sides that current assistant service channel takies, execution in step:
C11, directly in advance take described channel element in advance, treat to use when speed changes described channel element;
Otherwise, execution in step:
C12, distribute new channel element resource section again in advance for current burst.
4. the method for processing assistant service channel burst according to claim 2, it is characterized in that, described step C1 further comprises: when the forward direction assistant service channel speed of this secondary burst is lower than the forward direction assistant service channel speed of preceding sub-distribution, directly take the channel element resource section of original distribution in advance.
5. the method for processing assistant service channel burst according to claim 4 is characterized in that, described method also comprises: treat to discharge when speed changes unnecessary channel element CE resource.
6. the method for processing assistant service channel burst according to claim 1, it is characterized in that, when the assistant service channel speed of this secondary burst is higher than the speed of current assistant service channel, also carried out before execution in step C: base station controller sends resource inquiry information to base station transceiver, and base station transceiver returns the maximum rate that its resource situation is supported to base station controller then.
7. the method for processing assistant service channel burst according to claim 6, it is characterized in that, described step C also comprises: less speed in base station controller employing speed that base station transceiver returned and the determined speed of base station controller, and to base station transceiver application resource.
8. the method for processing assistant service channel burst according to claim 7 is characterized in that, described step D also comprises: when resource allocation was failed, current burst adopted former speed to begin the transfer of data of this secondary burst immediately.
9. the method for processing assistant service channel burst according to claim 1, it is characterized in that, described step C further comprises: when data transfer direction for the back to the time, new burst directly takies old channel element resource in advance, the raising speed rate is then added the idle channel element resource.
10. the method for processing assistant service channel burst according to claim 1, it is characterized in that, described step C further comprises: when data transfer direction for the back to the time, new burst directly takies old channel element resource in advance, and the reduction of speed rate then discharges unnecessary channel element resource when speed changes.
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| WO2008117965A2 (en) * | 2007-03-23 | 2008-10-02 | Lg Electronics Inc. | Resource management in a wireless communication network |
| CN102377833B (en) * | 2010-08-19 | 2015-07-22 | 华为技术有限公司 | Method and device for managing network address translation |
Citations (5)
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|---|---|---|---|---|
| US6088578A (en) * | 1998-03-26 | 2000-07-11 | Nortel Networks Corporation | Burst request method and apparatus for CDMA high speed data |
| CN1356813A (en) * | 2000-12-01 | 2002-07-03 | 朗迅科技公司 | Auxiliary channel sharing algorithm |
| US20040071125A1 (en) * | 2002-10-15 | 2004-04-15 | Gross Jonathan H. | Fairness method for supplemental channel resources |
| CN1545341A (en) * | 2003-11-11 | 2004-11-10 | 中兴通讯股份有限公司 | A method for continuous scheduling configuration of forward direction alternate channel |
| US6842441B2 (en) * | 2000-12-19 | 2005-01-11 | Lucent Technologies Inc. | Data transmission in a wireless communication system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6088578A (en) * | 1998-03-26 | 2000-07-11 | Nortel Networks Corporation | Burst request method and apparatus for CDMA high speed data |
| CN1356813A (en) * | 2000-12-01 | 2002-07-03 | 朗迅科技公司 | Auxiliary channel sharing algorithm |
| US6842441B2 (en) * | 2000-12-19 | 2005-01-11 | Lucent Technologies Inc. | Data transmission in a wireless communication system |
| US20040071125A1 (en) * | 2002-10-15 | 2004-04-15 | Gross Jonathan H. | Fairness method for supplemental channel resources |
| CN1545341A (en) * | 2003-11-11 | 2004-11-10 | 中兴通讯股份有限公司 | A method for continuous scheduling configuration of forward direction alternate channel |
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Effective date of registration: 20211229 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |