CN1943262A - A method of improved scheduling for enhanced uplink of UTRA FDD at a base station of a communication system - Google Patents
A method of improved scheduling for enhanced uplink of UTRA FDD at a base station of a communication system Download PDFInfo
- Publication number
- CN1943262A CN1943262A CNA2005800112792A CN200580011279A CN1943262A CN 1943262 A CN1943262 A CN 1943262A CN A2005800112792 A CNA2005800112792 A CN A2005800112792A CN 200580011279 A CN200580011279 A CN 200580011279A CN 1943262 A CN1943262 A CN 1943262A
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
- H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
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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
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Abstract
A method of scheduling at a base station of a communication system comprises determining in a terminal a short term urgency indication from buffer occupancy, data type and quality of service; sending the short term urgency indication (1) from the terminal (10) to the base station (11), which base station is adapted to dynamically allocate resources between terminals. The base station varies precedence for resource allocation from the terminal according to the short term urgency indication received.
Description
The present invention relates to the method that dispatch at a kind of place, base station of the communication system in communication system, especially mobile communication.
The present invention solves the demand of considering emergence message in scheduling.May be useful in the several different methods of in scheduling, considering emergence message, but these methods all there is certain shortcoming.If Node B is by for example checking and relatively the data rate request of the data transfer rate of being permitted being predicted emergency, then this cause inaccurate because for example the stand-by period to information requires and may not know in advance.The another kind of selection is that precedence information is incorporated in the data rate request information.Yet, having under the situation that additional capacity distributes in Node B, this has limited scheduling.Do not incorporate the efficient that any emergence message has reduced scheduling simply into.
According to a first aspect of the invention, a kind of place, base station in the communication system method of dispatching comprises: determine that according to buffering occupancy volume (buffer occupancy), data type and service quality short-term promptly indicates in terminal; Send this short-term from described terminal to described base station and promptly indicate, this base station is suitable between terminal dynamically Resources allocation; The resource allocation precedence that changes terminal is promptly indicated in wherein said base station according to the short-term that receives.
In the present invention, described terminal is calculated emergency and is sent an indication to the base station under the situation of considering buffering occupancy volume, data type and service quality (QoS).Scheduler program in the described base station can be kept service quality (QoS) target with this additional signaling, described additional signaling indicates described terminal how to wish its data of transmission peremptorily, so that described scheduler program can improve the precedence of terminal at specific transmission cycle, and needn't for good and all distribute higher priority channel.This more effectively utilizes available resource.
Preferably, described terminal provides described urgent indication by the dynamic physical layer signaling on public, that share or special-purpose physical channel.
Replacedly, described terminal provides emergence message in being transferred to media interviews control (MAC) head block of described base station.
Preferably, according to the described urgent indication and the data rate request of all terminals of just communicating by letter in the system, revise the resource that is assigned to channel at independent Transmission Time Interval.
Preferably, if emergency changes, then only send the signal of the urgent indication of described short-term by described terminal.
Replacedly, send the signal of the urgent indication of described short-term at regular intervals.
This has improved the efficient of scheduling.
Preferably, when the transmission beginning, between described terminal and described base station, consult average service quality.
Preferably, urgent indication is transmitted simultaneously with the transport-format combination indicator of being predicted.
Typically, described base station is one of Node B or radio network controller (RNC).
According to a second aspect of the invention, terminal comprises one of mobile phone, kneetop computer, PC card or personal digital assistant, and described terminal is applicable to the method that realizes described first aspect.
Referring now to the example of description of drawings, in the accompanying drawings according to method of dispatching of the present invention at the place, base station of communication system:
Fig. 1 illustrates the possible timeline of the inventive method.
Interesting is " enhanced uplink " channel that produces the fdd mode of 3GPP standard.The purpose of enhanced uplink (UL) is to improve throughput and capacity, and also reduces the packet call delay in the up link in possible place.One of principal character of enhanced uplink is in the base station or the Node B place distributes up link " noise penalty amount (Noise rise) " (being also referred to as node B scheduling in addition) apace.
The mechanism of node B scheduling is that Node B uses the fast physical layer signaling to come terminal or subscriber equipment (UE) are sent signal to the restriction of maximum data rate, described terminal can be transmitted on up link by this maximum data rate, with the interference volume of restriction by described terminal generation.Because this function is positioned at the Node B place, and signaling realizes in physical layer, described Node B can be followed the tracks of the quick variation in UE transmittability and the buffer state, thereby so that can come the limiting terminal data transfer rate and more effectively utilize the noise penalty amount at its receiver place according to its instantaneous demand and ability.
For the ease of scheduling effectively, can transmit some additional informations on up link, these additional informations comprise the UE buffer state, with respect to UE transmitter (TX) power of the current combinations of transport formats (TFC) of its highest TX power and the state of other service that described UE is supporting.The data transfer rate that such this UE of information notice scheduler program requires and can support.
At large, UE and network pass through the precedence of high-level signaling negotiated channel, and have agreed a precedence, fix this precedence at specific channel.The ground that replaces, the average QoS of UE and network negotiate, and, how to wish the additional signaling of the data block that transmission is specific peremptorily by indicating described UE, the inventive method secondary scheduler is kept this QoS target.Urgent reason can be: the UE transmission buffer becomes full, perhaps the stand-by period of data weak point, for example recreation.When distributing the UL resource, described emergence message considered by scheduler program, thereby if buffer is discontented, then UE does not send urgent pointer, but at Transmission Time Interval after a while, when other data have arrived this buffer, not urgent identical data before the essential transmission that may become.Send the signal of physical layer urgent pointer from UE, this physical layer urgent pointer is calculated in UE and preferably is transmitted with the TFC designator of being predicted (TFCI) that is associated, make described scheduler program to take this into account, so that keep the QoS target.These are different with the known technology with the more high-rise priority of several means annotated logic channel.In the present invention, described urgent indication is dynamic, and promptly described urgent indication can change between transmission intercal apace.Signal or in media interviews control (MAC) head block, signal by physical layer signaling.Described scheduler program is responsible for keeping whole QoS target, and described scheduler program has the independence that changes precedence according to urgent pointer between channel and terminal.
The present invention has multiple possible execution mode, for example, urgent pointer can be set to or several positions on " enhancement mode UL " UL signaling channel, be set to one or several positions on another (non-EUL) signaling channel, one or several positions in the UL transmission that strengthens before perhaps being set to be embedded in.
An example of the timeline of the inventive method is presented in Fig. 1.UE 10 indications promptly will be to supported TFC or the data transfer rate and current traffic carrying capacity priority, precedence or the urgent pointer of the transmission of the network traffic scheduler program in the base station 11,1.Network scheduler 2 uses the hope of the UE of competition to decide resource, and sends the signal of the distribution of use, 3 to UE 10.UE is prepared to piece size by 11 signalings in base station with current data, and 4, and calculate next time desirable capacity and precedence.UE sends down link data, and 5, and the UE indication is about to the capacity and the current business amount precedence of expectation, 6.Repeat the circulation of this expectation 6 and distribution 3.Depend on network management requirements, this circulation can be back-to-back, perhaps is expanded with the traffic carrying capacity from other UE staggered.
Can be by improve the efficient (streamline) of system to the variation in the subscriber equipment indicating services amount precedence, for example must improve precedence, the over and done with precedence that just reduces of perhaps in a single day such situation faster than the situation of overflowing of the data that can be transmitted to the data accumulation that wherein will be sent out.Yet in the environment of rapid fluctuations, when the variation ratio was more general continuously, perhaps event data stream was the burst shape, may be easier to send once more identical priority/precedence/emergence message in operation.
With reference to frequency division multiplexing (FDD) mode declaration pattern specification of third generation project cooperation partner (3GPP) standard this example, but the invention is not restricted to this, even also be not limited to mobile phone and use.Although constructed have a different data format, the also part of the traffic carrying capacity key-course of any data transmission system that still can be limited for capacity by arrangement by the Centroid place.Except 3GPP TDD system or CDMA 2000 systems, perhaps beyond its any enhanced system, the computer also central file server in network (no matter being wired or wireless) or satellite modulation demodulation system produces the request that repeats.At present, the system of use standard TCP/IP abandons not having at it bag of capacity simply, and if do not receive the confirmation, then resending these bags by transmit leg, this is slow and uneconomic process.
Claims (10)
1. method of dispatching at place, the base station of communication system, described method comprises: determine that according to buffering occupancy, data type and service quality short-term promptly indicates in terminal; Send this short-term from described terminal to described base station and promptly indicate, this base station is suitable between terminal dynamically Resources allocation; Wherein, the resource allocation precedence that changes terminal is promptly indicated in described base station according to the short-term that receives.
2. the method for claim 1, wherein described terminal provides described urgent indication by the dynamic physical layer signaling on public, that share or the special-purpose physical channel.
3. the method for claim 1, wherein described terminal provides described emergence message in being transferred to media interviews control (MAC) head block of described base station.
4. method as claimed in claim 1 or 2 wherein, according to the described urgent indication and the data rate request of all terminals of just communicating by letter in the system, is revised the resource that is assigned to channel in each Transmission Time Interval.
5. as the described method of one of claim 1 to 4, wherein,, then only send the signal of the urgent indication of described short-term by described terminal if emergency changes.
6. as the described method of one of claim 1 to 4, wherein, send the signal of the urgent indication of described short-term at regular intervals.
7. as the described method of arbitrary aforementioned claim, wherein, when the transmission beginning, between described terminal and described base station, consult average service quality.
8. as the described method of arbitrary aforementioned claim, wherein, described urgent indication is transmitted simultaneously with the transport-format combination indicator of being predicted.
9. as the described method of arbitrary aforementioned claim, wherein, described base station is one of Node B or radio network controller (RNC).
10. terminal, it comprises one of mobile phone, kneetop computer, PC card or personal digital assistant, described terminal is applicable to and realizes as the described method of arbitrary aforementioned claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0408294.7 | 2004-04-14 | ||
| GB0408294A GB2413241B (en) | 2004-04-14 | 2004-04-14 | A method of scheduling at a base station of a communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1943262A true CN1943262A (en) | 2007-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800112792A Pending CN1943262A (en) | 2004-04-14 | 2005-02-24 | A method of improved scheduling for enhanced uplink of UTRA FDD at a base station of a communication system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1943262A (en) |
| GB (1) | GB2413241B (en) |
| WO (1) | WO2005101885A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714307A (en) * | 2015-07-15 | 2017-05-24 | 北京信威通信技术股份有限公司 | Method for performing resource allocation through emergency channels |
| CN110012521A (en) * | 2018-01-05 | 2019-07-12 | 中国移动通信有限公司研究院 | A kind of scheduling request transmission method, device and computer readable storage medium |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0600870D0 (en) * | 2006-01-17 | 2006-02-22 | Siemens Ag | A Method Of Scheduling Groups Of Mobile Users |
| CN101132220B (en) * | 2006-08-22 | 2011-11-30 | 上海贝尔阿尔卡特股份有限公司 | Method and device for reporting ascending scheduling request or emergency in wireless network |
| EP3286967B1 (en) * | 2015-04-23 | 2018-06-13 | Telefonaktiebolaget LM Ericsson (publ) | Technique for scheduling transmission of content in an access network |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5351240A (en) * | 1992-05-08 | 1994-09-27 | Scientific-Atlanta, Inc. | Communication link having dynamically allocatable auxiliary channel for data bursts |
| GB2310972B (en) * | 1996-03-07 | 2000-06-14 | Motorola Ltd | Communication system and operating method thereof |
| GB2362298B (en) * | 1996-12-06 | 2002-01-02 | Immarsat Ltd | Communication method and apparatus |
| US6542481B2 (en) * | 1998-06-01 | 2003-04-01 | Tantivy Communications, Inc. | Dynamic bandwidth allocation for multiple access communication using session queues |
| US6388999B1 (en) * | 1997-12-17 | 2002-05-14 | Tantivy Communications, Inc. | Dynamic bandwidth allocation for multiple access communications using buffer urgency factor |
-
2004
- 2004-04-14 GB GB0408294A patent/GB2413241B/en not_active Expired - Fee Related
-
2005
- 2005-02-24 WO PCT/GB2005/000696 patent/WO2005101885A1/en active Application Filing
- 2005-02-24 CN CNA2005800112792A patent/CN1943262A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714307A (en) * | 2015-07-15 | 2017-05-24 | 北京信威通信技术股份有限公司 | Method for performing resource allocation through emergency channels |
| CN110012521A (en) * | 2018-01-05 | 2019-07-12 | 中国移动通信有限公司研究院 | A kind of scheduling request transmission method, device and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2413241A (en) | 2005-10-19 |
| WO2005101885A1 (en) | 2005-10-27 |
| GB0408294D0 (en) | 2004-05-19 |
| GB2413241B (en) | 2006-08-23 |
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