CN101300792A - Method for controlling a packet data transmission - Google Patents
Method for controlling a packet data transmission Download PDFInfo
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- CN101300792A CN101300792A CNA200680041025XA CN200680041025A CN101300792A CN 101300792 A CN101300792 A CN 101300792A CN A200680041025X A CNA200680041025X A CN A200680041025XA CN 200680041025 A CN200680041025 A CN 200680041025A CN 101300792 A CN101300792 A CN 101300792A
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- time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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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
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a method for controlling a packet data transmission between a transmitter and a receiver in a mobile radio communication network. According to the invention, the transmission of a data packet is carried out in a controlled manner in accordance with an assigned quality of service value. A synchronised time value is assigned in the fixed network to a data packet that is to be transmitted. The transmission of the data packet is also controlled in accordance with the assigned time value.
Description
The present invention relates to a kind of method of in cordless communication network, controlling the packet data transmission between reflector and the receiver according to the preamble of claim 1.
In the packet data transmission of wireless communication system, each packet waiting for transmission all can run into the static state hypothesis (statische Annahme) relevant with time of delay, and this transmits for the packet between reflector and the receiver is essential.Can control packet data transmission in the cordless communication network according to this hypothesis.
Under this assumption, also need to consider to be known as the service quality value of " service quality ", these values are assigned to each packet.For example, the packet that is used for the higher service quality value of having of every business is transmitted with higher priority in network.
So, be generally the critical data transmission and distribute higher service quality value, for example video Data Transmission or voice data transmission belong to this critical data transmission.
Correspondingly, be equipped with lower service quality value for the non-critical data transmission divides, for example data are downloaded or transmission of textual data belongs to this non-critical data transmission.
Static state hypothesis about tolerable time of delay is determined in advance by system designer, promptly keeps in advance enough transmission times.
Especially the wireless communication system of network node that is called " GMSC (gateway mobile switching center), GMSC " or " Gateway GPRS Support Node, GGSN " for having is all the more so, and wherein packet is transmitted by these nodes.
Especially by public resource such as situation about transmitting by so-called " shared channel " under, be called " scheduler (Scheduler) " aspect need consider maximum delay time, be also referred to as " stand-by period ".
" scheduler " as the control device of packet data transmission and be used, and can be provided with at network side.
By the stand-by period suitably is set, can reduces the actual available transmission time extraly, thereby can similarly limit the up duration that is used for packet data transmission control based on predetermined retention time (reservezeit).
By this restriction, especially in the fully loaded cordless communication network, can realize inefficient packet data transmission, this is because perhaps grouped data does not need too early transmission.
Aloft under the current transmission conditions of interface, transmission of packet data realizes by air interface, is impossible with transmission wait to the time point of more favourable transmission conditions.
A task of the present invention provides a kind of method, can provide efficient higher packet data transmission according to this method when keeping same quality.This task solves by the feature of claim 1.Preferred embodiment is provided by dependent claims.
The method according to this invention, except that the service mass value, each packet also is assigned with time value in addition.The service quality value of being distributed is depended in the transmission of packet, also depends on the time value of being distributed.
Preferably, when entering cordless communication network, be assigned with time value, such as when receiving the packet that is sent by the first network terminal base station or Node B by the packet that travelling carriage sent.
Alternatively, this distribution also can realize in the network node that is called " GMSC (gateway mobile switching center) " or " Gateway GPRS Support Node ".
Preferably, therefore time value can be the timestamp of defined system clock, or the counter status of defined system counter, and wherein system clock and system counter form synchronously for the required element of all controls in whole network range.
Based on lock in time value can determine in the cordless communication network transmission of data packets actual required transmission time and time of delay with pinpoint accuracy more.The time of delay that therefore can maximum turn to scheduler control and keep.
The method according to this invention can postpone packet data transmission.For example, when wireless transmission be to carry out its radio transmission conditions between the cordless communication network when relatively poor at one end for the mobile radio communication apparatus other end.
Thus, relatively poor when only also having the enough time to exist aspect air interface when transmission conditions, can realize " maintenance " and postpone participant's packet, thereby can keep the service quality value of the packet that distributed before.Therefore also can realize, only just must carry out packet data transmission during to the service quality value sin qua non under the relatively poor wireless transmission condition of contact in grouped data.
Control the time of delay that therefore (one or more) transmission of packet data no longer only obtains by imagination, and be based on the actual delay time in the cordless communication network.
By the method according to this invention, can realize the better connection relevant with transmission quality.
By the method according to this invention, can in cordless communication network, operate the connection of greater number, this can improve network throughput.
In preferred embodiment, at the measured actual delay symbol of network side storing.Can realize static estimation thus on the one hand, determining Delay Time perhaps can shorten on the other hand.
Estimate to make Virtual network operator in cordless communication network, to realize fine setting by static state, with the transmission constrained position of finding out defective element and being called " bottleneck ".
Among the present invention, the time value assigned in packet aspect base station and the Node B can obtain by comparing with the internal time value of base station before being transferred to mobile terminal device.
By this comparison, can determine transmission time and time of delay actual required in the cordless communication network.Realize control according to " service quality " value of being distributed under the kindred circumstances in addition to the data groupings transmission from the base station to the mobile terminal device.
Transmission time, TGES calculated by following formula:
TGES＝TQOS-((TIN-TAR)+TREST)
TGES＝TQOS-(TVS+TNS)
Wherein:
The object time that TQOS provides by " service quality " value,
The entry time of communication network is arrived in the TIN packet,
The TAR packet is to the entry time point of scheduler
The estimated remaining runtime of TREST packet in network,
The TVS data block is until the running time of scheduler, and
The running time of TNS data block after scheduler.
By further the present invention being set forth by following accompanying drawing.It shows:
Fig. 1 show according to of the present invention being used at one end be mobile terminal device and the other end is the method for the transmission of data packets between the two of fixed network interface (Anschluss); And
Fig. 2 show according to of the present invention being used at one end be first mobile terminal device and the other end is the method for the transmission of data packets between the two of second mobile terminal device.
Fig. 1 show according to of the present invention being used at one end be mobile terminal device TN1 and the other end is the method for transmission of data packets between the fixed network interface FN1.
In the exemplary schematic representation, mobile terminal network comprises the first base-station node B1, the second base-station node B2, the first network node NK1 and the second network node NK2.
Herein, first node NK1 forms as so-called " Serving GPRS Support Node, SGSN " or as " radio network controller, RNC " or as for example being used for the what is called " mobile anchor (Mobility Anchor) " of mobile fixed function.
Herein, Section Point NK2 forms as so-called " Gateway GPRS Support Node, GGSN " or as general " GPRS Support Node, GSN+ ".The second network node NK2 has described the transmission of the GPRS communication network in so-called " public data network " or " packet data network ".
The interdependent node of described mobile wireless network and assembly are grouped together by the synchronous ring SR that is called " synchronous ring (Synch Ring) ", and these nodes and element are by synchronous ring and time synchronized.
The first base-station node B1, the first network node NK1 and the second network node NK2 interconnect by so-called " control connection ", realize by it synchronously.
In addition, the first base-station node B1, the first network node NK1, the second network node NK2 and other assembly " public data network " interconnected by so-called " user plane connects (User PlaneConnection) ", no matter were the packets that sends or can both be transmitted the time value of distributing by it.
The packet that sends from mobile participant TN1 arrives fixed network interface FN1 by the first base-station node B1, the first network node NK1 and the second network node NK2.Similarly, also can transmit for the packet that sends from fixed network interface FN1 by corresponding opposite way.
At the second network node NK2 place, the data that sent from fixed network interface FN1 are assigned with time value " timestamp ", and packet is transferred to the first base-station node B1 together with time value.Consider time synchronized and be called " synchronous ring " synchronous ring SR given system time and realize this distribution.
At the first base-station node B1 place, the time value of packet with compare by the given system time of synchronous ring.Can be determined such time by this comparison, this time be scheduler be used for transfer of data according to the also remaining time of required service quality value (service quality value).This represents by Reference numeral " calculating of the remaining time of scheduler " in Fig. 1.
Fig. 2 show according to of the present invention at one end be the first mobile terminal device TN1 and the other end is the method for carrying out packet data transmission between the two of the second mobile terminal device TN2.
According to Fig. 1, in shown exemplary schematic representation, mobile wireless network has the first base-station node B1, the second base-station node B2, the first network node NK1 and the second network node NK2.
The first network node NK1 forms as so-called " Serving GPRS Support Node, SGSN " or as " radio network controller, RNC " or as for example being used for the what is called " mobile anchor " of mobile fixed function.
Section Point NK2 forms as so-called " Gateway GPRS Support Node, GGSN " or as general " GPRS Support Node, GSN+ ".The second network node NK2 has described the transmission of the GPRS communication network in so-called " public data network " or " packet data network ".
Shown in the interdependent node and the assembly of mobile wireless network be grouped together by so-called synchronous ring SR, by synchronous ring SR, node and assembly can be synchronous in time.Thus, for example realize time synchronized using under the given system time.
The first base-station node B1, the first network node NK1, the second network node NK2 and the second base-station node B2 interconnect by so-called " control connection ", can realize synchronously by it.
In addition, the first base-station node B1, the first network node NK1, the second network node NK2 and the second base-station node B2 interconnect by so-called " user plane connection ", can transmission of data packets and the time value of being distributed by it.
The packet that is sent from mobile participant TN1, promptly by the first base-station node B1, the first network node NK1, the also participation by the second network node NK2 if necessary, and arrive the second base-station node B2 and move the grouped data of participant TN2 from its arrival second.Similarly, corresponding opposite way is applicable to the packet that sends to first participant TN1 from second participant TN2.
At the first base-station node B1 place, the packet that is sent by first participant TN1 is assigned with time value " timestamp ", and this packet is transferred to the second base-station node B2 together with time value.Thus, carry out this distribution considering time synchronized and be called under the given system time situation of synchronous ring SR of " synchronous ring ".
At the second base-station node B2 place, the time value of packet with compare by the given system time of synchronous ring.Relatively can determine such time according to this, this time is the also remaining time of scheduler data packet transmission of depending on required service quality value (service quality value).This represents by Reference numeral " scheduler remaining time calculating " in Fig. 2.
Correspondingly, undertaken by opposite direction to the packet that first participant TN1 sends by second participant TN2.Then, realize distribution-" timestamp/synchronous ring " of time value at the second base-station node B2 place, realize that at the first base-station node B1 end time of scheduler determines-" scheduler remaining time calculating " simultaneously.
Claims (8)
1. one kind is used to control the reflector of cordless communication network and the method for the packet data transmission between the receiver,
-wherein, the transmission of packet is controlled according to the service quality value of being distributed,
It is characterized in that,
-be assigned to the packet of transmission in fixed network side value lock in time, and
The control of-described data packet transmission also realizes according to the time value of being distributed in addition.
2. the method for claim 1 is characterized in that, radio communication terminal is used separately as described reflector and described receiver.
3. the method for claim 1 is characterized in that, the access point of described cordless communication network is used separately as described reflector and receiver.
4. method as claimed in claim 3 is characterized in that, the base station is as described access point.
5. the method for claim 1 is characterized in that, timestamp or counter status are as value lock in time.
6. the method for claim 1 is characterized in that,
-determine time of delay at network side, be that first data packet transmission between described reflector and the described receiver is required described time of delay,
-more described required the time of delay and the described time value of described first packet, and
-determine order according to described comparison, in the described transmission that is applied sequentially to described first packet that is associated with the transmission of another packet.
7. the method for claim 1 is characterized in that,
-determine time of delay at network side, be that first data packet transmission between described reflector and the described receiver is required described time of delay,
-more described required time of delay and the maximum delay time that provides by described service quality value,
-determine the stand-by period according to described comparison, the described stand-by period is applied to the delay by the described packet data transmission of air interface.
8. method as claimed in claim 7 is characterized in that, in the described stand-by period, described data packet transmission is delayed and has favourable transmission conditions on described air interface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005042787A DE102005042787A1 (en) | 2005-09-08 | 2005-09-08 | Method for controlling a packet data transmission |
| DE102005042787.1 | 2005-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101300792A true CN101300792A (en) | 2008-11-05 |
Family
ID=37307239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200680041025XA Pending CN101300792A (en) | 2005-09-08 | 2006-08-24 | Method for controlling a packet data transmission |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1927219A1 (en) |
| CN (1) | CN101300792A (en) |
| DE (1) | DE102005042787A1 (en) |
| RU (1) | RU2384002C2 (en) |
| WO (1) | WO2007028719A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499870B (en) * | 2008-02-03 | 2013-01-16 | 中兴通讯股份有限公司 | Method and apparatus for multimedia broadcast multicast service data synchronization between RNCs |
| CN102325656B (en) | 2009-02-22 | 2015-04-08 | 惠普开发有限公司 | Logical and virtual nozzle-fire-restart line for fluid-ejection device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6845100B1 (en) * | 2000-08-28 | 2005-01-18 | Nokia Mobile Phones Ltd. | Basic QoS mechanisms for wireless transmission of IP traffic |
| US7103350B2 (en) * | 2001-11-16 | 2006-09-05 | Nortel Networks Limited | Scheduler with fairness control and quality of service support |
-
2005
- 2005-09-08 DE DE102005042787A patent/DE102005042787A1/en not_active Withdrawn
-
2006
- 2006-08-24 EP EP06778338A patent/EP1927219A1/en not_active Withdrawn
- 2006-08-24 WO PCT/EP2006/065615 patent/WO2007028719A1/en active Application Filing
- 2006-08-24 RU RU2008113384/09A patent/RU2384002C2/en not_active IP Right Cessation
- 2006-08-24 CN CNA200680041025XA patent/CN101300792A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| RU2384002C2 (en) | 2010-03-10 |
| RU2008113384A (en) | 2009-10-20 |
| EP1927219A1 (en) | 2008-06-04 |
| DE102005042787A1 (en) | 2007-03-29 |
| WO2007028719A1 (en) | 2007-03-15 |
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Open date: 20081105 |