CN1134918C - Packet data dispatching method based on mobile station capability - Google Patents
Packet data dispatching method based on mobile station capability Download PDFInfo
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- CN1134918C CN1134918C CNB011239409A CN01123940A CN1134918C CN 1134918 C CN1134918 C CN 1134918C CN B011239409 A CNB011239409 A CN B011239409A CN 01123940 A CN01123940 A CN 01123940A CN 1134918 C CN1134918 C CN 1134918C
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- travelling carriage
- channel
- data
- packet data
- mobile station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a packet data dispatching method based on the capability of a mobile station. In the method, the SAW (stop and wait) capability parameter of a channel of a mobile station is acquired, and the parameter is delivered to a packet data dispatching entity of UTRAN; the dispatching entity determines whether a target mobile station of the packet data is identical with a target mobile station of a previous TTI; when the identity does not exist, the packet data is sent; when the identity exists, whether the SAW capability of the channel of the mobile station is saturated is determined; when the saturation already exists, the packet data is buffered and sent until a next TTI. when the saturation does not exist, the data packet is directly sent. When the proposal is used, the SAW capability of the channel of the mobile station is fully considered, and data is dispatched by a system according to the data processing capacity of the mobile station; therefore, the packet data processing efficiency of the overall system is increased, the resource utilization rate of the mobile station can also be increased, and the design of mobile stations is prompted to move towards the direction of more reasonable cost performance, which is convenient to further reduce the power consumption and the cost of mobile stations.
Description
Technical field:
The present invention relates to the scheduling of bag data in the wireless communication system, relate in particular to the method for the bag data being dispatched based on the data-handling capacity of travelling carriage.
Background technology:
In the system of Wideband Code Division Multiple Access (WCDMA), the data of Circuit-switched data and packet switch have different characteristics.Circuit-switched data have real-time characteristics, can stand certain mistake bag; Packet switched data can be stood certain time delay usually, requires low as far as possible to the mistake bag.Because packet switched data can allow a fixed response time, therefore can avoid the restriction of real-time, design corresponding packet data dispatching strategy as required, to satisfy requirements such as power system capacity, customer service demand to greatest extent.Existing packet data dispatching strategy has based on channel quality, as C/I (signal interference ratio) with based on user's Round-Robin (poll) strategy.Based on the method for C/I be according to each user in wireless system in the residing sub-district obtainable signal quality dispatch, for the user of C/I maximum, just obtain the user of best signal quality, the preferential bag data that send; The user of poor signal quality for example is in the user of cell edge, and the scheduling rank of packet switch is lower.The advantage of this scheduling strategy is the packet switched data throughput maximization that can make the sub-district, and shortcoming is that the scheduling that each user obtains is uneven, and the user who is in the poor signal quality zone may not receive data the long period, and service quality can not get guaranteeing.The Round-Robin strategy is that each user's bag data are evenly dispatched, and gives identical limited level, can guarantee that although it is so each user obtains identical service, but the data throughput of whole sub-district does not have the former good, and the availability of frequency spectrum is not high.And, more than two kinds of scheduling strategies all do not consider the disposal ability of user's receiving terminal, the disposal ability of the overall data of system will be descended if the data dispatch of the data-handling capacity of user's receiving terminal and system is inharmonious.
In broadband CDMA system, the down high-speed data packet switching service (PSS) transmits data by DSCH Downlink Shared Channel, be shared as example with the time-division, the base station is assigned to each user's data on the different time intervals, the transmission time that the user that acquisition TTI (Transmission Time Interval) is many obtains is many, otherwise the transmission time that obtains is just few.Owing to requirement, mix automatic repeat requests mechanism (HARQ) in the physical layer introducing that sends and receive to packet switch mistake bag and time delay.In order to make full use of radio channel resource, select multichannel to stop waiting (SAW) HARQ mode usually.Be the most common mode as the complete cycle of the continuous bag transfer of data of system generally in 4 channel SAW modes, why adopt 4 channel SAW modes, be to judge whether that according to the quality of data that receives needs carry out the re-transmission of data because also need after the Data Receiving, feeding back ACK/NACK (affirmation/non-affirmation) information also needs the processing time simultaneously, 4 channels can guarantee that time delay processing is timely, and don't waste system resource.Because in system, transmit leg is base station side, can bear higher hardware complexity, and the Turbo code encoder of transmission data is also uncomplicated; The recipient, the hardware size of travelling carriage (UE) is limited, and the complexity of Turbo code decoder will be far longer than encoder.If travelling carriage has the decoder of 4 channels simultaneously, the power consumption and the cost of travelling carriage will be increased greatly.The time chart of 4 channel SAW is with reference to figure 2.Among Fig. 2, descending control channel and data channel time correspondence, after travelling carriage received Downlink Control Information and data, decoding needed a TTI time, sent confirmation to transmit leg UTRAN at the 3rd TTI with respect to the down channel time by up acknowledgement channel then.UTRAN needs a TTI decoding after receiving the confirmation information, whether sends success to judge this packet.If success then equally also can only send other packet at the 3rd TTI of up relatively affirmation (the 5th descending relatively TTI); If unsuccessful, then also can only resend this packet at the 3rd TTI of up relatively affirmation (the 5th descending relatively TTI).According to above processing delay analysis, 4 channel SAW can make full use of channel and not waste hardware resource.
Along with the development of Communications Market, travelling carriage is inclined to the segmentation and the customization of function more.For the travelling carriage of high-end user, can have high complexity and high price, obtain the high-speed data service of high quality-of-service; For general user's travelling carriage, more be inclined to the service of the rational ratio of performance to price.For most of user, the possibility of a plurality of TTI reception of continuous possession simultaneously high-speed data is also little.Therefore, most of travelling carriage does not need the top configuration of 4 channel SAW, can save the power consumption and the cost of travelling carriage thus.
Summary of the invention:
According to top described, because the travelling carriage that down high-speed data receives may have different data-handling capacities, therefore, the object of the present invention is to provide a kind of packet data dispatching method based on mobile station capability, this method can be carried out data dispatch according to the data-handling capacity of travelling carriage, and then improves the data-handling efficiency of whole system.
For achieving the above object, the packet data dispatching method based on mobile station capability provided by the invention comprises:
(1) obtains travelling carriage channel SAW (wait and stop) ability parameter, and will send under this parameter in the packet data dispatching entity of UTRAN (universal land radio access web);
(2) be ready for sending the bag data;
(3) judge whether the target MS of described bag data is identical with the target MS of a last TTI (Transmission Time Interval),, send described bag data if different, otherwise,
(4) judge whether the channel SAW ability of this travelling carriage is saturated, if saturated, the described bag data of buffer memory wait until that next TTI sends, otherwise directly transmission.
For making the present invention produce better effect, described method also comprises:
It is the highest that the best travelling carriage priority of channel quality is set, if the channel SAW ability of travelling carriage can not satisfy continuous bag Data Receiving, in the complete timeslice of the continuous bag transfer of data of system except the TTI that this travelling carriage takies, remaining TTI distributes to the travelling carriage that channel quality takes second place, if the disposal ability of this travelling carriage still can not make full use of remaining TTI, then it is distributed to the travelling carriage that channel quality more takes second place, and the like, in the complete cycle of the continuous bag transfer of data of next system, repetitive operation.
Channel SAW ability according to travelling carriage is that described travelling carriage is assigned to corresponding bandwidth, wraps the scheduling of data according to described bandwidth.
Above described to obtain travelling carriage channel SAW ability parameter be in RRC (Radio Resource control) initialization or when upgrading, require travelling carriage to report when perhaps needing.
Above described will sending in the packet data dispatching entity of UTRAN under the travelling carriage channel SAW ability parameter, (RNC) finishes by base station controller.
Because when the scheduling that the present invention wraps data by down channel to travelling carriage in system transmits, taken into full account the channel SAW ability of travelling carriage, both can make system carry out data dispatch according to the data-handling capacity of travelling carriage, and then the treatment effeciency of the bag data of raising whole system, can improve the resource utilization of travelling carriage again, impel the direction design of travelling carriage, be convenient to further reduce the power consumption and the cost of travelling carriage to the more rational ratio of performance to price.
Description of drawings:
Fig. 1 is the method for the invention embodiment flow chart;
Fig. 2 is the graph of a relation of 4 channel SAW modes.
Embodiment:
For further understanding the present invention, the present invention is described in further detail below in conjunction with accompanying drawing.
In the down high-speed data business, because the ability difference of travelling carriage receiver packet number certificate, when sending the bag data in base station side, for the travelling carriage a little less than the disposal ability, the ability of for example having only 1 channel SAW can not transmit the bag data continuously in the time-domain of the complete cycle of the continuous bag transfer of data of system; For the stronger travelling carriage of disposal ability, for example have the ability of 4 channel SAW, can on described time-domain, transmit the bag data continuously.In the process that initially connects, travelling carriage is told the parameter of base station controller mobile station capability by base station (BS), comprising travelling carriage have several channels, also can send the consulting of disposal ability by base station controller at any time to travelling carriage, obtain relevant information.Universal land radio access web (UTRAN, Universal Terrestrial Radio Access Network) is taken this as a foundation and travelling carriage is wrapped the scheduling of data after obtaining the relevant parameter of travelling carriage disposal ability from the core net aspect.The complete cycle of the bag transfer of data that supposing the system is continuous is 4 TFI, and when travelling carriage had 4 channel SAW disposal abilities, UTRAN can dispatch to the continuous bag data of this travelling carriage; When travelling carriage had 3 channel SAW disposal abilities, UTRAN can dispatch the packet switched data that is no more than continuous 3 TTI to this travelling carriage, can only occupy 3 transmission capacity in continuous 4 TTI; When travelling carriage had 2 channel SAW disposal abilities, UTRAN can dispatch the packet switched data that is no more than continuous 2 TTI to this travelling carriage, can only occupy 2 transmission capacity in continuous 4 TTI; When travelling carriage had 1 channel SAW disposal ability, UTRAN can dispatch the transmission capacity that can only occupy 1 to the packet switched data of this travelling carriage in continuous 4 TTI.
If wrap the scheduling of data, just can improve the efficient that system data is handled according to mentioned above principle.Mentioned above principle can be separately as scheduling strategy, can certainly with combine as a kind of hybrid packet data dispatch strategy based on the bag data policy of channel quality or the packet data dispatching strategy of polling mode.
Therefore, in broadband CDMA system, in the process of travelling carriage and UTRAN initial link, specifically, if in the time of Radio Resource control (RRC, Radio Resource Control) link establishment, travelling carriage is required to report the parameter of mobile station capability to give base station controller, base station controller just can store these parameters, tasks UTRAN as required down, as the reference of resource allocation etc.Certainly, base station controller also can require travelling carriage to report the ability parameter of renewal again in the process that RRC keeps connecting at any time.
Fig. 1 is the method for the invention embodiment flow chart.Implement the present invention according to Fig. 1, need be with the channel SAW ability divided rank of travelling carriage.Four grades have been divided in this example altogether, 4 channel SAW abilities, 3 channel SAW abilities, 2 channel SAW abilities and 1 channel SAW ability.In the reality, the needs according to the packet data dispatching of reality also can be divided into other grade, for example maximum 6 channel SAW abilities or 3 channel SAW abilities.
Connection by RRC is set up or is upgraded, and requires travelling carriage that oneself is reported base station controller with channel SAW ability when perhaps needing.Behind the channel SAW ability parameter that scheduling entity acquisition base station controller in UTRAN is sent, the scheduling of wrapping data according to this parameter distributes.Be specially, when target MS had 4 channel SAW disposal abilities, UTRAN can dispatch to the continuous packet switched data of this travelling carriage; When target MS had 3 channel SAW disposal abilities, UTRAN can dispatch the packet switched data that is no more than continuous 3 TTI to this travelling carriage, can only occupy 3 transmission capacity in continuous 4 TTI; When target MS had 2 channel SAW disposal abilities, UTRAN can dispatch the packet switched data that is no more than continuous 2 TTI to this travelling carriage, can only occupy 2 transmission capacity in continuous 4 TTI; When target MS had 1 channel SAW disposal ability, UTRAN can dispatch the transmission capacity that can only occupy 1 to the packet switched data of this travelling carriage in continuous 4 TTI.
The described method of Fig. 1 also needs the SAW counter is set in the specific implementation, is used to judge whether the channel SAW ability of travelling carriage is saturated.Like this, according to Fig. 1, in step 1, initialization travelling carriage channel SAW ability parameter when RRC sets up or when upgrading; In step 2, base station controller is with in the scheduling entity of sending under this parameter among the UTRAN, and scheduling entity is when receiving travelling carriage channel SAW parameter, and initialization is zero at a SAW counter of each travelling carriage; Carry out step 3 then, prepare to send the bag data to travelling carriage; In the process of transmitting of each bag, the bag data that preparation sent to certain travelling carriage are done following processing in step 4, whether the target MS of judging described bag data is identical with the target MS of a last TTI, if it is different, execution in step 5 sends described bag data, execution in step 6 then, and the SAW counter of this travelling carriage is put 1; The transmission that last execution in step 12 is prepared next packet.If the target MS of described bag data is identical with the target MS of a last TTI, then judge further in step 7 whether the channel SAW ability of this travelling carriage is saturated, whether the value of promptly judging the SAW counter of this travelling carriage equates with the channel SAW value of this travelling carriage, if equate, the channel SAW ability that this travelling carriage is described is saturated, at this moment described bag data of execution in step 8 buffer memorys, by the time next TTI sends, then with the SAW counter O reset of this travelling carriage, the transmission that last execution in step 12 is prepared next packet.If the channel SAW value of the value of the SAW counter of this travelling carriage and this travelling carriage is unequal, the channel SAW ability that this travelling carriage is described does not also have saturated, at this moment execution in step 10 directly sends this packet, SAW counter with this travelling carriage adds 1 then, the transmission that last execution in step 12 is prepared next packet.
The present invention can be well and is combined based on channel quality or based on the strategy of poll (Round Robin).In the scheduling strategy based on C/I, the best travelling carriage of channel quality can receive the packet switched data from the base station continuously.Therefore, after considering the channel SAW disposal ability of travelling carriage, it is the highest that the best travelling carriage priority of channel quality is set, if the channel SAW ability of travelling carriage can not satisfy continuous bag Data Receiving, in the complete cycle of the continuous bag transfer of data of system except the TTI that this travelling carriage takies, remaining TTI distributes to the travelling carriage that channel quality takes second place, if the disposal ability of this travelling carriage still can not make full use of remaining TTI, then it is distributed to the travelling carriage that channel quality more takes second place, and the like, in the complete cycle of the continuous bag transfer of data of next system, repetitive operation.That is to say, receive, in 4 TTI, except the TTI that this travelling carriage takies, remainingly distribute to the travelling carriage that channel quality takes second place if the disposal ability of travelling carriage can not satisfy continuous packet switched data; If the disposal ability of this travelling carriage still can not make full use of remaining TTI, then it is distributed to the travelling carriage that channel quality more takes second place, and the like, at next 4 TTI in the cycle, repetitive operation.
With the cohesive process based on the poll strategy be: the channel SAW ability according to travelling carriage is that described travelling carriage is assigned to corresponding bandwidth, the TTI number that is single mobile station accounts for the interior percentage of TTI always of the continuous bag data transfer cycle of system, wraps the scheduling of data then according to described bandwidth.
Claims (7)
1, a kind of packet data dispatching method based on mobile station capability comprises:
(1) obtains travelling carriage channel etc. and stop ability parameter, and will send under this parameter in the packet data dispatching entity of universal land radio access web;
(2) be ready for sending the bag data;
(3) judge whether the target MS of described bag data is identical with the target MS of a last Transmission Time Interval,, send described bag data if different, otherwise,
(4) whether the channel etc. of judging this travelling carriage to stop ability saturated, if saturated, the described bag data of buffer memory wait until that next Transmission Time Interval sends, otherwise directly transmission.
2, packet data dispatching method according to claim 1 is characterized in that, this method also comprises: be provided with etc. and stop counter, whether channel that is used to judge travelling carriage etc. stops ability saturated.
3, packet data dispatching method according to claim 1, it is characterized in that, this method also comprises: it is the highest that the best travelling carriage priority of channel quality is set, if the abilities of stopping such as the channel of travelling carriage can not satisfy continuous bag Data Receiving, in the complete cycle of the continuous bag transfer of data of system except the Transmission Time Interval that this travelling carriage takies, remaining Transmission Time Interval is distributed to the travelling carriage that channel quality takes second place, if the disposal ability of this travelling carriage still can not make full use of remaining Transmission Time Interval, then it is distributed to the travelling carriage that channel quality more takes second place, and the like, in the complete cycle of the continuous bag transfer of data of next system, repetitive operation.
4, packet data dispatching method according to claim 1 is characterized in that, this method also comprises: the abilities of stopping such as channel according to travelling carriage are that described travelling carriage is assigned to corresponding bandwidth, wrap the scheduling of data according to described bandwidth.
5, packet data dispatching method according to claim 1 is characterized in that: describedly obtain travelling carriage channel etc. to stop ability parameter be in unlimited resources control initialization or when upgrading, require travelling carriage to report when perhaps needing.
6, packet data dispatching method according to claim 1 is characterized in that: described travelling carriage channel etc. is stopped sending under the ability parameter in the packet data dispatching entity of universal land radio access web, finish by base station controller.
7, packet data dispatching method according to claim 1 is characterized in that, this method also comprises: the abilities of stopping such as channel of travelling carriage are divided into four grades, and 4 channels etc. stop ability, 3 channels etc. and stop ability, 2 channels etc. and stop ability and 1 channel etc. and stop ability.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011239409A CN1134918C (en) | 2001-08-06 | 2001-08-06 | Packet data dispatching method based on mobile station capability |
| PCT/CN2002/000153 WO2003015323A1 (en) | 2001-08-06 | 2002-03-13 | A dispatching method of packet data based on the capacity of mobile station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011239409A CN1134918C (en) | 2001-08-06 | 2001-08-06 | Packet data dispatching method based on mobile station capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1400756A CN1400756A (en) | 2003-03-05 |
| CN1134918C true CN1134918C (en) | 2004-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011239409A Expired - Fee Related CN1134918C (en) | 2001-08-06 | 2001-08-06 | Packet data dispatching method based on mobile station capability |
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| Country | Link |
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| CN (1) | CN1134918C (en) |
| WO (1) | WO2003015323A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8345657B2 (en) | 2006-08-23 | 2013-01-01 | Alcatel Lucent | Method and device of transmitting and parsing data in wireless communication network |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4301970B2 (en) * | 2004-02-23 | 2009-07-22 | 株式会社エヌ・ティ・ティ・ドコモ | Packet transmission control apparatus and packet transmission control method |
| EP1753179B1 (en) | 2004-05-10 | 2015-09-23 | NTT DoCoMo, Inc. | Packet transmission control device |
| CN100459581C (en) * | 2006-09-21 | 2009-02-04 | 电子科技大学 | A method for packet dispatching of variable parameter for real-time mixed service environment |
| CN102740485A (en) * | 2011-04-02 | 2012-10-17 | 中兴通讯股份有限公司 | Method, user equipment, and base station of resource scheduling |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW313734B (en) * | 1996-01-05 | 1997-08-21 | Motorola Inc | System controlled asymmetrical automatic repeat request protocol method |
| US6021124A (en) * | 1997-08-19 | 2000-02-01 | Telefonaktiebolaget Lm Ericsson | Multi-channel automatic retransmission query (ARQ) method |
| US6275488B1 (en) * | 1999-11-17 | 2001-08-14 | Motorola, Inc. | Variable rate spread spectrum communication method and apparatus |
| US7065068B2 (en) * | 1999-12-29 | 2006-06-20 | Motorola, Inc. | Multi channel stop and wait ARQ communication method and apparatus |
-
2001
- 2001-08-06 CN CNB011239409A patent/CN1134918C/en not_active Expired - Fee Related
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2002
- 2002-03-13 WO PCT/CN2002/000153 patent/WO2003015323A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8345657B2 (en) | 2006-08-23 | 2013-01-01 | Alcatel Lucent | Method and device of transmitting and parsing data in wireless communication network |
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| Publication number | Publication date |
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| WO2003015323A1 (en) | 2003-02-20 |
| CN1400756A (en) | 2003-03-05 |
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