CN102547963B - HSDPA (high speed downlink packet access) scheduling control method and HSDPA communication system - Google Patents
HSDPA (high speed downlink packet access) scheduling control method and HSDPA communication system Download PDFInfo
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- CN102547963B CN102547963B CN201010605750.3A CN201010605750A CN102547963B CN 102547963 B CN102547963 B CN 102547963B CN 201010605750 A CN201010605750 A CN 201010605750A CN 102547963 B CN102547963 B CN 102547963B
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Abstract
The invention provides an HSDPA (high speed downlink packet access) scheduling control method and an HSDPA communication system. The HSDPA scheduling control method comprises the steps: before conducting upstream RB (radio beacon) reconfiguration on a UE (user equipment), an RNC (radio network controller) sends activation time information to a base station according to predicted starting time of the upstream RB reconfiguration; the base station determines scheduling stopping starting fame according to the activation time information; from the scheduling stopping starting frame, the base station stops scheduling HS-SCCH (high speed-shared control channel)and HS-PDSCH (high speed-physical downlink shared channel) to the UE. In the invention, when the RNC conducts the upstream RB reconfiguration on the UE, the base station stops sending data to the UE by the HS-SCCH and HS-PDSCH during the scheduling stopping period, so that the losing of downstream data is avoided, the download rate fluctuation of a user can be lowered, and the user experience can be improved.
Description
Technical field
(High Speed Downlink PacketAccess is called for short: HSDPA) dispatch control method and HSDPA communication system, belongs to high speed downlink packet access technology field to the present invention relates to a kind of high-speed slender body theory.
Background technology
In existing HSDPA technology, subscriber equipment (UE) up use dedicated channel (DedicatedChannel, be called for short: DCH) transmit data, when needs adjustment upstream rate, radio network controller (Radio Network Controller, be called for short: (RadioBearer is called for short: reprovision flow process RB), to revise the parameters such as the time-slot code channel of up DCH RNC) namely to initiate radio bearer.Such as, when initially accessing, RNC is the DCH that UE distributes up 32kbps, and when UE downloading rate is very high, upstream rate reprovision is become the DCH of 64kbps or 128kbps by RNC, to meet the needs of transfer of data.
In prior art, at least there are the following problems:
During RNC carries out RB reprovision to UE, UE can re-start a wireless link initial synchronization, and before synchronously completing, terminal does not receive the data yet not sending any physical channel.The high-speed downstream Physical Shared Channel (HS-PDSCH) that the base station of network side (Node B) can be caused like this to send and the data of other corresponding High-Speed Shared Control Channels (HS-SCCH) are abandoned by UE.If the RB reprovision duration is longer, UE stops the duration of transmission and reception also longer, then can make HS-PDSCH because re-transmission arrives maximum times and abandon, thus causing very great fluctuation process to user unloading speed.Such as, as shown in fig. 1, when RNC initiates a RB reprovision, downstream rate will experience one and reduce the process recovered again, therefore affects user's impression.
Summary of the invention
The invention provides a kind of HSDPA dispatch control method and HSDPA communication system, lose in order to avoid the downlink data during RB reprovision.
One aspect of the present invention provides a kind of HSDPA dispatch control method, comprising:
Before carrying out up RB reprovision to UE, RNC, according to the expectation initial time of described up RB reprovision, sends activationary time information to base station;
Described base station is determined to stop dispatching start frame according to activationary time information;
From described stop scheduling start frame, described base station stops dispatching HS-SCCH and HS-PDSCH to described UE.
The present invention provides a kind of HSDPA communication system on the other hand, comprises RNC and base station, wherein:
Described RNC comprises:
Reprovision module, for carrying out up RB reprovision to UE;
Estimation module, before carrying out up RB reprovision in reprovision module to UE, estimates the expectation initial time of described up RB reprovision;
Notification module, for the expectation initial time of described up RB reprovision estimated according to estimation module, sends activationary time information to described base station;
Described base station comprises:
First determination module, stops dispatching start frame for determining according to the activationary time information coming from described RNC;
First scheduler module, for stopping scheduling start frame described in determining from the first determination module, stops dispatching HS-SCCH and HS-PDSCH to described UE.
The present invention, when RNC carries out up RB reprovision to UE, makes base station stop sending data by HS-SCCH and HS-PDSCH to UE between stopping schedule periods, thus avoids downlink data and abandon, reduce user unloading speed fluctuation, improve user's impression.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, 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.
Fig. 1 is user unloading speed wave testing result figure in prior art;
The flow chart of Fig. 2 HSDPA dispatch control method of the present invention embodiment;
Fig. 3 is the channel annexation schematic diagram between the base station in method shown in Fig. 2 and UE;
Fig. 4 is for reducing the test result contrast schematic diagram of downloading rate fluctuation after method shown in employing Fig. 2;
Fig. 5 is the structural representation of HSDPA communication system embodiment of the present invention.
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.
The flow chart of Fig. 2 HSDPA dispatch control method of the present invention embodiment, as shown in the figure, comprises the steps:
Step 110, before carrying out up RB reprovision to UE, RNC, according to the expectation initial time of described up RB reprovision, sends activationary time information to base station.
Wherein, described activationary time information is mainly used in indicating the resource when used after RB reprovision in the prior art.And in the present embodiment, utilizing this activationary time information to suspend the recommendation initial time of scheduling HS-SCCH and HS-PDSCH to base station instruction, this recommendation initial time can be determined according to the expectation initial time of up RB reprovision.Particularly, this recommendation initial time can equal described expectation initial time, or equals described expectation initial time and add the time of delay determined according to previous experiences.
Step 120, described base station is determined to stop dispatching start frame according to activationary time information.
Particularly, can determine according to the frame number comprised in described activationary time information described in stop dispatch start frame.Due in the prior art, HS-SICH and HS-SCCH has fixing corresponding relation usually, therefore the frame having a corresponding relation with this frame before being positioned at frame corresponding to described frame number can be dispatched start frame as described stopping.Illustrating can see citing below.
Step 130, from described stop scheduling start frame, described base station stops dispatching HS-SCCH and HS-PDSCH to described UE.
Wherein, HS-SCCH is used for being sent control signaling to UE by base station, to notify that UE is about to the code channel of data and the use sent; Then, data are sent to UE in the HS-PDSCH of base station after a few frame of being separated by.
Step 140, described base station is determined to stop to dispatch abort frame according to the up RB reprovision Duration Information preset, from described stop dispatching a rear frame of abort frame, described base station recovers to dispatch HS-SCCH and HS-PDSCH to described UE.
Wherein, the up RB reprovision Duration Information preset is empirical value, after the up RB reprovision when base station to UE terminates, then can recover to dispatch HS-SCCH and HS-PDSCH to described UE.Because different UEs is different in the treatment mechanism in RB reprovision stage, suspends the time length received and send also different, need in practical application to arrange different time-out length, show that the optimum of often kind of UE suspends length through test and comparison.
Such as, as shown in Figure 3, show the channel annexation between base station and UE, as shown in the figure, to comprising three channels less in each frame communicated between base station with UE, i.e. down channel HS-SCCH and HS-PDSCH and up channel HS-SICH, method described in the present embodiment mainly performs following process:
In the first frame, normal consistency is carried out in base station, and therefore, UE normally replys HS-SICH;
At the second frame in the 7th frame, scheduling is suspended in base station, and therefore, UE does not reply HS-SICH, and wherein, stopping scheduling start frame is the second frame;
From the 8th frame, normal consistency is recovered in base station, and therefore, UE normally replys HS-SICH.
Due in the prior art, HS-SICH and HS-SCCH has fixing corresponding relation usually, and the data that the data namely in HS-SICH transmit for the HS-SCCH before a few frame are often replied, and therefore has fixing frame period between them.In situation shown in Fig. 3, the frame number comprised in activationary time information is the 5th frame, suppose that the HS-SICH in the 5th frame is corresponding with the HS-SCCH in the second frame before, if by the 5th frame stopping dispatching start frame and be set in figure, because UE normally can not reply HS-SICH in the 5th frame, therefore, the data of the HS-PDSCH in the 3rd frame corresponding with the HS-SCCH in the second frame still can be lost, so the scheduling start frame that stops of reality is set to the second frame, base station is allowed just not send the data of HS-SCCH and HS-PDSCH ahead of time to UE, by the time continue again after recovering to send, to avoid loss of data.
Method described in the present embodiment is when RNC carries out up RB reprovision to UE, base station is made to stop sending data by HS-SCCH and HS-PDSCH to UE between stopping schedule periods, thus avoid downlink data and abandon, reduce user unloading speed fluctuation, improve user's impression.
Fig. 4 is for reducing the test result contrast schematic diagram of downloading rate fluctuation after method shown in employing Fig. 2, as shown in the figure, before adopting method described in the present embodiment, gap in test result image is larger, after adopting method described in the present embodiment, the gap of carrying out within the scope of front 20 frames and rear 20 frames in the test result image recorded when dispatching time-out obviously reduces, and shows that the fluctuation of downloading rate obviously reduces.
Fig. 5 is the structural representation of HSDPA communication system embodiment of the present invention, uses to implement the above described method, as shown in the figure, this HSDPA communication system, comprise base station 20 and RNC 10, UE is communicated with RNC 10 with base station 20 by wireless access network, its operation principle is as follows:
Reprovision module 11 in described RNC 10 is for carrying out up RB reprovision to UE; Before reprovision module 11 couples of UE carry out up RB reprovision, first estimated the expectation initial time of described up RB reprovision by estimation module 12; The expectation initial time of the described up RB reprovision then estimated according to estimation module 12 by notification module 13, sends activationary time information, about the explanation of this activationary time information can see the related content in said method embodiment to described base station.
After this, after base station 20 receives activationary time information, first determined to stop dispatching start frame according to the activationary time information coming from described RNC 10 by the first determination module 21, specifically have the determination mode of closing down scheduling start frame can see the related content in said method embodiment; Then by the first scheduler module 22 from stopping scheduling start frame described in the first determination module 21 is determined, stop dispatching HS-SCCH and HS-PDSCH to described UE;
In addition, the second determination module 23 and the second scheduler module 24 can also be set in base station 20 further.Wherein, second determination module 23 is determined to stop dispatching abort frame according to the up RB reprovision Duration Information preset, then by the second scheduler module 24 from stopping to dispatch a rear frame of abort frame described in the second determination module 23 is determined, recover to dispatch HS-SCCH and HS-PDSCH to described UE.
System described in the present embodiment is when RNC carries out up RB reprovision to UE, base station is made to stop sending data by HS-SCCH and HS-PDSCH to UE between stopping schedule periods, thus avoid downlink data and abandon, reduce user unloading speed fluctuation, improve user's impression.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment 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 said method embodiment; 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 embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment 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 portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a HSDPA dispatch control method, is characterized in that, comprising:
Before carrying out up RB reprovision to UE, RNC, according to the expectation initial time of described up RB reprovision, sends activationary time information to base station;
Described base station will have the frame of corresponding relation as stopping dispatching start frame with this frame before being arranged in frame corresponding to frame number that described activationary time information comprises;
From described stop scheduling start frame, described base station stops dispatching HS-SCCH and HS-PDSCH to described UE.
2. method according to claim 1, is characterized in that, described base station stops also comprising after described UE dispatches HS-SCCH and HS-PDSCH:
Described base station is determined to stop dispatching abort frame according to the up RB reprovision Duration Information preset;
From described stop dispatching a rear frame of abort frame, described base station recovers to dispatch HS-SCCH and HS-PDSCH to described UE.
3. a HSDPA communication system, comprises RNC and base station, it is characterized in that:
Described RNC comprises:
Reprovision module, for carrying out up RB reprovision to UE;
Estimation module, before carrying out up RB reprovision in reprovision module to UE, estimates the expectation initial time of described up RB reprovision;
Notification module, for the expectation initial time of described up RB reprovision estimated according to estimation module, sends activationary time information to described base station;
Described base station comprises:
First determination module, for according to coming from the activationary time information of described RNC, will have the frame of corresponding relation as stopping dispatching start frame with this frame before being arranged in frame corresponding to frame number that described activationary time information comprises;
First scheduler module, for stopping scheduling start frame described in determining from the first determination module, stops dispatching HS-SCCH and HS-PDSCH to described UE.
4. system according to claim 3, is characterized in that, described base station also comprises:
Second determination module, stops dispatching abort frame for determining according to the up RB reprovision Duration Information preset;
Second scheduler module, for stop to dispatch abort frame described in determining from the second determination module a rear frame, recover to dispatch HS-SCCH and HS-PDSCH to described UE.
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| CN201010605750.3A CN102547963B (en) | 2010-12-15 | 2010-12-15 | HSDPA (high speed downlink packet access) scheduling control method and HSDPA communication system |
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| CN1960562A (en) * | 2005-11-04 | 2007-05-09 | 华为技术有限公司 | Method of controlling dispatch of down going sharing channel in high speed and switch of sectors |
| CN101127556A (en) * | 2006-08-15 | 2008-02-20 | 中兴通讯股份有限公司 | A dynamic scheduling method for carrier resource |
| CN101499848A (en) * | 2008-01-31 | 2009-08-05 | 大唐移动通信设备有限公司 | Uplink scheduling method and apparatus |
| CN101610556A (en) * | 2008-06-16 | 2009-12-23 | 大唐移动通信设备有限公司 | The method and apparatus that switch a kind of sub-district |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960562A (en) * | 2005-11-04 | 2007-05-09 | 华为技术有限公司 | Method of controlling dispatch of down going sharing channel in high speed and switch of sectors |
| CN101127556A (en) * | 2006-08-15 | 2008-02-20 | 中兴通讯股份有限公司 | A dynamic scheduling method for carrier resource |
| CN101499848A (en) * | 2008-01-31 | 2009-08-05 | 大唐移动通信设备有限公司 | Uplink scheduling method and apparatus |
| CN101610556A (en) * | 2008-06-16 | 2009-12-23 | 大唐移动通信设备有限公司 | The method and apparatus that switch a kind of sub-district |
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