CN101394661A - Code resource regulating method for high-speed physical downlink shared channel - Google Patents
Code resource regulating method for high-speed physical downlink shared channel Download PDFInfo
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- CN101394661A CN101394661A CNA2007101512882A CN200710151288A CN101394661A CN 101394661 A CN101394661 A CN 101394661A CN A2007101512882 A CNA2007101512882 A CN A2007101512882A CN 200710151288 A CN200710151288 A CN 200710151288A CN 101394661 A CN101394661 A CN 101394661A
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Abstract
The invention discloses a dynamic adjustment method of code resources in a high speed physical downlink shared channel. The method mainly comprises the following steps: after the number of the high speed physical downlink shared channel configured by a radio network controller is increased on the basis of initial configuration, a code resource recovery timer is opened, and the expiration time of the timer is set; the radio network controller can only keep or increase the number of the prior high speed physical downlink shared channel before the resource recovery timer expires; when the resource recovery timer expires, if the high speed downlink grouping access service does not exist in a prior cell, the number of the prior high speed physical downlink shared channel is recovered into the number of the initial configuration. By adopting the technical proposal provided by the invention, the code resource of the channel can be utilized fully, so that the system has stable performance, and the transmission of downlink high speed data is realized.
Description
Technical field
The present invention relates to Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code-Division MultipleAccess) mobile communication technology, specifically, relate to and support high speed downlink packet to insert (HSDPA, High Speed Downlink Packet Access) in the sub-district, the distribution method of the channel code of down physical channel.
Background technology
It is wideband CDMA (WCDMA that high speed downlink packet inserts (HSDPA), WidebandCode-Division Multiple Access) key technology of system, the measures such as fast dispatch that retransmit (HARQ) and base station (NodeB) by adaptive modulation and coding (AMC), mixing realize descending high speed data transfer.
In the WCDMA system that supports the HSDPA business, down direction is by high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH, HighSpeed Physical Downlink Shared Channel) transmission data.According to agreement, the fixing use of Primary Common Pilot Channel (P-CPICH) and Primary Common Control Physical Channel (P-CCPCH) is numbered C (256,0) and C (256,1) code word, the HS-PDSCH channel must use spreading factor (SF, Spreading Factor) be 16 code word, there are 15 HS-PDSCH channels at most in a sub-district.And when having many HS-PDSCH channels, the channel code that these channels use must be from C (16,15) beginning continuous distribution.Wherein (sequence number is the channel code (also can be described as code word) of B to C for A, B) expression SF=A, and the span of the sequence number of the code word of SF=A is 0～A-1.Generally speaking, radio network controller (RNC) can be that 16 channel code is kept for the HS-PDSCH channel with the spreading factor of several successive according to the HSDPA business, these channel code are just no longer distributed to other channels and have been used, and remaining code word uses for non-HS-PDSCH down physical channel.
Owing to the quantity of HSDPA business in the sub-district can change along with the variation of time.Therefore when the HS-PDSCH channel number of reserving can not satisfy the demand of current HSDPA business, just need to increase the number of HS-PDSCH channel; When the HSDPA business seldom, when the HS-PDSCH channel of reservation can not be used fully, just need to reduce the number of HS-PDSCH channel, use for non-HS-PDSCH down physical channel to vacate more code word, to improve a sign indicating number resource utilization.
If the downlink data throughput that current HS-PDSCH channel number can provide can not be carried new business again, the calling of the so new HSDPA class of initiating will be admitted refusal.At this moment, RNC should increase the number of HS-PDSCH channel.But, if RNC based on certain mechanism before new HSDPA business is access in, reduced the HS-PDSCH channel number again, so new HSDPA business can't be access in, the HS-PDSCH channel that triggers because of HSDPA business admission refusal increases the effect of just not playing of operating simultaneously, if this situation occurs repeatedly, might cause the frequent increase or the minimizing of HS-PDSCH channel number, cause the instability of system.
Summary of the invention
The technical problem to be solved in the present invention is, the method that a kind of high speed physical down shared channel code resources is dynamically adjusted has been proposed, after HSDPA service call refusal triggers RNC increase HS-PDSCH channel number, of the present inventionly will open a timer, prevented that before timer expiry the HS-PDSCH channel number from reducing, thereby guarantee that unaccepted HSDPA business can be access in when making a call once more.
In order to solve the problems of the technologies described above, the invention provides the method that a kind of high speed physical down shared channel code resources is dynamically adjusted, mainly may further comprise the steps:
The high-speed physical downlink shared channel (HS-PDSCH) number of radio network controller configuration is opened the sign indicating number resource and is reclaimed timer, and the time-out time of timer is set after increasing on the basis of initial configuration;
Before described resource reclaimed timer expiry, radio network controller can only keep or increase the number of current high-speed physical downlink shared channel (HS-PDSCH);
When described resource reclaims timer expiry,, again the high-speed physical downlink shared channel (HS-PDSCH) number is reverted to the number of initial configuration as there not being high speed downlink grouping access business in the current area.
The described resource of described unlatching reclaims timer, and the time-out time of timer setting is greater than the user and initiates the time interval that high speed downlink grouping access business is called out once more.
Described before resource reclaims timer expiry, radio network controller can not be because of there not being high speed downlink grouping access business, and reduction high-speed physical downlink shared channel (HS-PDSCH) number.
Described before resource reclaims timer expiry, increase high-speed physical downlink shared channel (HS-PDSCH) quantity as needs, the high-speed physical downlink shared channel (HS-PDSCH) quantity after need satisfiedly increasing is smaller or equal to maximum high-speed physical downlink shared channel (HS-PDSCH) quantity.
There are 15 high-speed physical downlink shared channel (HS-PDSCH)s in the sub-district of described support high speed downlink grouping access business at most.
Advantage of the present invention: adopt technical scheme of the present invention, solved because the HS-PDSCH channel number is limited, the downlink data throughput deficiency that can provide, the problem that causes the call business of the new HSDPA class of initiating to be admitted refusal, utilizing HS-PDSCH channel code resource to reclaim timer has avoided, RNC based on certain mechanism before new HSDPA business is access in, reduced the HS-PDSCH channel number, make new HSDPA business to be access in, the HS-PDSCH channel that triggers because of HSDPA business admission refusal increases the shortcoming that effect is not played in operation simultaneously, make increase or the minimizing that the HS-PDSCH channel number can be not frequent, the instability that causes system, the present invention can make full use of the sign indicating number resource of channel, makes systematic function stable, realizes descending high speed data transfer.
Description of drawings
Fig. 1 is the flow chart of a kind of code resource regulating method for high-speed physical downlink shared channel of the present invention;
Embodiment
Below in conjunction with specific embodiment the technical problem to be solved in the present invention is described further:
As shown in Figure 1, the invention provides the method that a kind of high speed physical down shared channel code resources is dynamically adjusted, mainly may further comprise the steps:
When radio network controller receives the HSDPA service call, under the enough situation of Iub mouth flow, because the HS-PDSCH channel code inadequate resource of downlink data throughput and plot planning in the current area, cause the calling of HSDPA class will be rejected access, radio network controller will trigger the sign indicating number resource of HS-PDSCH channel this moment, increase the number of HS-PDSCH channel, and open resource and reclaim timer, and the time-out time of timer is set, the time-out time of described timer setting is greater than the user and initiates the time interval that high speed downlink grouping access business is called out once more;
Before described resource reclaimed timer expiry, radio network controller can only keep or increase the number of current high-speed physical downlink shared channel (HS-PDSCH); Radio network controller can not be because of there not being high speed downlink grouping access business in the current area, and reduction high-speed physical downlink shared channel (HS-PDSCH) number, increase high-speed physical downlink shared channel (HS-PDSCH) quantity as needs, the high-speed physical downlink shared channel (HS-PDSCH) quantity after need satisfiedly increasing is smaller or equal to maximum high-speed physical downlink shared channel (HS-PDSCH) quantity.
When described resource reclaims timer expiry, as there not being high speed downlink grouping access business in the current area, again the high-speed physical downlink shared channel (HS-PDSCH) number is reverted to the number of initial configuration, the process flow operation that system will be when being not activated resource and reclaiming timer.
In conjunction with the concrete detailed explanation technical problem that will solve of the present invention of data:
The HS-PDSCH channel number of supposing the current area configuration is 5, article 5, the highest downstream rate that can support of HS-PDSCH channel is about 3.6Mbps, radio network controller receives a user and initiates a HSDPA business at this moment, and guarantee that speed is 4Mbps, because the maximum rate that current HS-PDSCH channel can be supported is less than the assurance speed of this business, this calling is rejected.
When the HSDPA business was rejected because of the HS-PDSCH channel number is not enough, under the enough situation of Iub mouth flow, the HS-PDSCH channel number should increase, supposing increases by 1, then the HS-PDSCH channel number is 6, open resource and reclaim timer, and the time-out time that timer is set is 30 seconds.
Suppose that the time interval that the user makes a call once more is about 20 seconds, do not have HSDPA user in the current area, before described resource reclaimed timer expiry, radio network controller can only keep the number of 6 high-speed physical downlink shared channel (HS-PDSCH)s after the current increase.
Do not adopting under the situation of the present invention, following situation: RNC may occur judged before the user initiates the calling of HSDPA business once more and does not have the HSDPA business in the current area, in order to admit more non-HSDPA business, the HS-PDSCH channel number is reverted to 5 of initial configuration; When the user made a call once more, because the number of HS-PDSCH channel still is 5, the calling meeting was refused once more.
When described resource reclaims timer expiry, as there not being high speed downlink grouping access business in the current area, again the high-speed physical downlink shared channel (HS-PDSCH) number is reverted to 5 of the numbers of initial configuration, system will be when being not activated resource and reclaiming timer process flow operation so that admit more non-HSDPA business.
The method that a kind of high speed physical down shared channel code resources of the present invention is dynamically adjusted is not restricted to listed utilization in specification and the execution mode.Concerning the technology of the present invention those of ordinary skill in the field, can make various corresponding changes and distortion according to the present invention, and all these corresponding changes and distortion all belong to the protection range of claim of the present invention.
Claims (5)
1, the dynamic method of adjusting of a kind of high speed physical down shared channel code resources is characterized in that, may further comprise the steps:
The high-speed physical downlink shared channel (HS-PDSCH) number of radio network controller configuration is opened the sign indicating number resource and is reclaimed timer, and the time-out time of timer is set after increasing on the basis of initial configuration;
Before described resource reclaimed timer expiry, radio network controller can only keep or increase the number of current high-speed physical downlink shared channel (HS-PDSCH);
When described resource reclaims timer expiry,, again the high-speed physical downlink shared channel (HS-PDSCH) number is reverted to the number of initial configuration as there not being high speed downlink grouping access business in the current area.
2, the dynamic method of adjusting of a kind of according to claim 1 high speed physical down shared channel code resources, it is characterized in that, the described resource of described unlatching reclaims timer, and the time-out time of timer setting is greater than the user and initiates the time interval that high speed downlink grouping access business is called out once more.
3, the dynamic method of adjusting of a kind of according to claim 1 high speed physical down shared channel code resources, it is characterized in that, it is described before resource reclaims timer expiry, radio network controller can not be because of there not being high speed downlink grouping access business, and reduction high-speed physical downlink shared channel (HS-PDSCH) number.
4, the dynamic method of adjusting of a kind of according to claim 1 high speed physical down shared channel code resources, it is characterized in that, it is described before resource reclaims timer expiry, increase high-speed physical downlink shared channel (HS-PDSCH) quantity as needs, the high-speed physical downlink shared channel (HS-PDSCH) quantity after need satisfiedly increasing is smaller or equal to maximum high-speed physical downlink shared channel (HS-PDSCH) quantity.
5, the method for dynamically adjusting as a kind of high speed physical down shared channel code resources as described in the claim 4 is characterized in that, has 15 high-speed physical downlink shared channel (HS-PDSCH)s in the sub-district of described support high speed downlink grouping access business at most.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101512882A CN101394661B (en) | 2007-09-18 | 2007-09-18 | Code resource regulating method for high-speed physical downlink shared channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101512882A CN101394661B (en) | 2007-09-18 | 2007-09-18 | Code resource regulating method for high-speed physical downlink shared channel |
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| CN101394661A true CN101394661A (en) | 2009-03-25 |
| CN101394661B CN101394661B (en) | 2012-02-29 |
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| CN2007101512882A Expired - Fee Related CN101394661B (en) | 2007-09-18 | 2007-09-18 | Code resource regulating method for high-speed physical downlink shared channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036392A (en) * | 2009-09-25 | 2011-04-27 | 中兴通讯股份有限公司 | Code resource allocation method and radio network controller |
| CN102186246A (en) * | 2011-03-30 | 2011-09-14 | 中兴通讯股份有限公司 | Dynamic scheduling method, base station and system of code resources |
-
2007
- 2007-09-18 CN CN2007101512882A patent/CN101394661B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036392A (en) * | 2009-09-25 | 2011-04-27 | 中兴通讯股份有限公司 | Code resource allocation method and radio network controller |
| CN102036392B (en) * | 2009-09-25 | 2014-11-05 | 中兴通讯股份有限公司 | Code resource allocation method and radio network controller |
| CN102186246A (en) * | 2011-03-30 | 2011-09-14 | 中兴通讯股份有限公司 | Dynamic scheduling method, base station and system of code resources |
| CN102186246B (en) * | 2011-03-30 | 2015-10-28 | 中兴通讯股份有限公司 | The dynamic dispatching method of a kind of yard of resource, base station and system |
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| Publication number | Publication date |
|---|---|
| CN101394661B (en) | 2012-02-29 |
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