CN106304379A - A kind of user scheduling method in communication system - Google Patents
A kind of user scheduling method in communication system Download PDFInfo
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- CN106304379A CN106304379A CN201510323081.3A CN201510323081A CN106304379A CN 106304379 A CN106304379 A CN 106304379A CN 201510323081 A CN201510323081 A CN 201510323081A CN 106304379 A CN106304379 A CN 106304379A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application discloses the user scheduling method in a kind of communication system, including: base station receives the uplink message that user sends, and is carrying out the download user of TCP traffic according to the message identification of PDCP layer, and is being added into downloading Subscriber Queue；When carrying out the pre-scheduling of uplink user, the user in Subscriber Queue is downloaded in preferential pre-scheduling.Application the application, it is possible to increase the downloading rate of service-user.
Description
Technical field
The application relates to communication technology, particularly to the user scheduling method in a kind of communication system.
Background technology
In the data transmission connected based on TCP, it is desirable to after the signaling sent or data want ACK to return bag
Just can carry out next step flow process, this mechanism is referred to as the ACK of TCP and returns machine contracting system.At user's receiving network data
Downloading process in, if it is possible to shorten user's time delay to up time of network direction bag, then can promote network to
The descending speed given out a contract for a project in user direction, thus promote downloading rate.
In current LTE system, base station and core net use transparent transmission mechanism, i.e. for the application layer in user face
Content therein will not be resolved, no matter application layer use TCP or UDP, all perception less than, it is seen that simply use
Face, family message.
Owing to UE and base station are wireless connections, and base station is all wired connection to core net and server, and wired
The time delay connected is the shortest, then most of time delay that the TCP of UE and server connects is to eat dishes without rice or wine.LTE's
In uplink authorization scheduling mechanism, channel is taken by terminal needs the mandate in advance through base station, and the mandate of base station is also
How many data will be had to send based on terminal, based on this, in LTE system, the process of uplink scheduling is as follows: terminal first to
Base station sends dispatch request, and base station is that the BSR of terminal reports and carries out uplink authorization, terminal to report BSR (relief area shape
State is reported), then, after base station scheduling, the transmitting uplink data for terminal sends out uplink authorization, and terminal retransmits upstream data.
It is the biggest that processing delay versus downstream data when system carries out user uplink scheduling send, therefore, for fall further
Low time delay creates pre-scheduling mechanism to improve downloading rate.
Pre-scheduling mechanism, i.e. base station requires no knowledge about terminal has how many data to send to send uplink authorization the most in advance, give
The chance of the transmission data of terminal a certain amount of (can pass through parameter configuration), terminal has data in scheduling instance caches
Send and then directly just can send out.The scheduling before upstream data of eating dishes without rice or wine sends can be shortened by authorizing in advance of pre-scheduling
Time delay, can reduce upstream data transmission delay in theory, improves downloading rate.And find in reality is tested, though
So apply pre-scheduling mechanism, but often cannot effectively reduce upstream data transmission delay, it is impossible to realize improving and download
The purpose of speed.
Summary of the invention
This application provides the user scheduling method in a kind of communication system, it is possible to be effectively improved the download speed of service-user
Rate.
For achieving the above object, the application adopts the following technical scheme that:
A kind of user scheduling method in communication system, including:
Base station receives the uplink message that user sends, and is carrying out under TCP traffic according to the message identification of PDCP layer
Carry user, and be added into downloading Subscriber Queue；
When carrying out the pre-scheduling of uplink user, the user in Subscriber Queue is downloaded in preferential pre-scheduling.
It is preferred that the download user that the described message identification according to PDCP layer is carrying out TCP traffic includes:
Within the setting time, return bag number according to the ACK of the counting messages TCP of PDCP layer, if more than the number set
Amount, it is determined that relative users is to carry out the download user of TCP traffic.
Include it is preferred that the ACK of the counting messages TCP of described PDCP layer returns bag number:
If the message length of PDCP layer is less than setting thresholding, then it is assumed that this message is that the ACK of TCP returns bag；Or,
Read the TCP header of PDCP layer message, if ACK territory puts 1, then it is assumed that this message is the ACK of TCP
Return bag.
When the download user carrying out TCP traffic that will identify that described in it is preferred that adds download Subscriber Queue, press
Add described download Subscriber Queue according to the time identified, and the user being newly added is put into queue tail.
It is preferred that the user that described preferential pre-scheduling is downloaded in Subscriber Queue includes:
When carrying out the pre-scheduling of uplink user, described in first pre-scheduling, download the user in Subscriber Queue, and according to described
Download the order user therein of pre-scheduling successively from the beginning to the end in Subscriber Queue；In the complete described download user team of pre-scheduling
After all users in row, then other users that pre-scheduling is in addition to the user in described download Subscriber Queue.
As seen from the above technical solution, in the application, after base station receives the uplink message that user sends, according to PDCP
The message identification of layer is carrying out the download user of TCP traffic, and is added into downloading Subscriber Queue；Then, entering
During the pre-scheduling of row uplink user, the user in Subscriber Queue is downloaded in preferential pre-scheduling.Change pre-by above-mentioned process
Scheduling mode, it is possible to the user of business is in scheduling targetedly, thus effectively shortens uplink time delay, and then effectively carries
The transfer rate of high downlink business.
Accompanying drawing explanation
Fig. 1 is the basic procedure schematic diagram of user's pre-scheduling method in the application；
Fig. 2 is the schematic diagram of TCP transmission in present application example.
Detailed description of the invention
In order to make the purpose of the application, technological means and advantage clearer, below in conjunction with accompanying drawing to this Shen
Please be described in further details.
For the pre-scheduling mechanism mentioned in background technology, although design original intention is desirable to be shortened by scheduling time and subtracts
Little propagation delay time, thus reach to improve the purpose of downlink business speed, but the most often cannot realize in reality is tested
Improve the target of downlink business speed.
Here pre-scheduling mechanism is once furtherd investigate, analyze the reason that cannot improve downlink business speed.Tool
Body ground, pre-scheduling mechanism is the scheduling not knowing in base station to carry out in advance when terminal has how many data to be sent, owing to adjusting
Spending shifting to an earlier date of time, causing base station that terminal is sent data volume cannot accurately grasp, and therefore, is nothing when implementing
Opinion user the most really has data to send, and all can carry out pre-scheduling for all activated user, if activated in a large number
User only the most little in user is doing business, then be really after the user of business is likely polled to during pre-scheduling
Scheduling, then the effect of pre-scheduling will be given a discount, and therefore causes time delay to differ surely and optimizes, and downloading rate cannot promote.
As seen from the above analysis, pre-scheduling mechanism has a problem in that and all activated user carries out pre-scheduling, and does not has
Pre-scheduling is carried out for the user doing business.Analysis based on the problems referred to above reason, the application is given a kind of new presetting
Degree method, it is possible to solve the problem that pre existing scheduling mechanism cannot improve downloading rate.Fig. 1 is pre-scheduling in the application
The basic procedure schematic diagram of method, as it is shown in figure 1, the method includes:
Step 101, base station receives the uplink message that user sends.
Step 102, base station is carrying out the download user of TCP traffic according to the message identification of the PDCP layer received,
And the download user that will identify that adds download Subscriber Queue.
This step is the user of business for identifying and user is added enqueue.Wherein, when identifying the user of business of doing,
The application layer message resolved on up PDCP by base station in the application is identified.Preferably, each use can be resolved
Family is the TCP header control field of message in PDCP caches, if within the setting time, identifies and exceedes setting number
The TCP ACK of amount returns bag, then illustrate that this user belongs to TCP and downloads user, and the TCP that this can be identified downloads
User puts into download Subscriber Queue.
When identifying that TCP ACK returns bag, the application provides the following two kinds mode:
If the message length of mode one PDCP layer is less than when setting thresholding, then regard this message as TCP ACK return
Bag；The concrete size setting thresholding can be returned the message size of bag according to usual ACK and be set.Such as, the most simply
Ground, when individually carrying ACK information, usual TCP ACK returns the message size of bag and is less than 60 bytes, therefore may be used
To regard PDCP layer as TCP ACK return bag less than or equal to the message of 60bype；
Mode two, can read the TCP header of PDCP layer, the message that ACK territory is put 1 regards that TCP ACK returns as
Bag.
After identifying the user doing TCP traffic, user is added download Subscriber Queue.Preferably, according to identifying
Time add and download Subscriber Queue, and the user being newly added queue is sequentially placed into queue tail.
Step 103, when carrying out pre-scheduling, the user in Subscriber Queue is downloaded in preferential pre-scheduling.
In the application, ensure that download user priority assigns to resource by first dispatching download Subscriber Queue.Specifically,
In the pre-scheduling moment, if it be empty for downloading Subscriber Queue, according to order from the beginning to the end in download Subscriber Queue
Each user of pre-scheduling, Resources allocation, after the user in all download Subscriber Queue completes pre-scheduling, then enter
Enter the pre-scheduling of other users in addition to the user downloaded in Subscriber Queue.The specifically pre-scheduling technology to user
For prior art, repeat no more here.
So far, the pre-scheduling method basic procedure in the application terminates.Carry out specifically below by an example
Bright, as a example by the most complete small documents (less than 1500byte) TCP transmission, Fig. 2 is this document transmission
Schematic diagram.Owing to Documents Comparison is little, less than 1500byte, only issue a DATA just transmission and be over.As
Really file is more than 1500byte, then have repeatedly DATA and ACK process.Provisional capital in downloading process in Fig. 2
Being ACK signaling, message size is usually no more than 60byte.
Assuming that with 1S as timing statistics, one of following two kinds of methods can be used to identify and to download user:
Method one: add up in this period, the up PDCP layer message number less than or equal to 60byte is more than or equal to
Certain thresholding, illustrates that the up TCP of existence ACK returns bag, then this user of labelling is for downloading user, and according to knowledge
The time not gone out puts into download Subscriber Queue, and the user being newly added queue is sequentially placed into queue tail.
Method two: add up in this period, by reading the TCP header of message, the message of 1 is put in its ACK territory
Count more than certain thresholding, then this user of labelling is for downloading user, and puts into download use according to the time identified
Family queue, the user being newly added queue is sequentially placed into queue tail.
The process carrying out pre-scheduling after timing statistics terminates is as follows:
In the pre-scheduling moment, if downloading Subscriber Queue be sky, then according to the order of queue from the beginning to the end to often
Individual queue consumers carries out pre-scheduling, Resources allocation successively.User in all download Subscriber Queue completes presetting
After degree, enter back into domestic consumer's queue and carry out pre-scheduling.The pre-scheduling technology of each inner queue is prior art,
The most no longer illustrate.
By the pre-scheduling method in above-mentioned the application, judged at user by the message of identification of base stations application layer
In TCP download state, and promote pre-scheduling priority to downloading user such that it is able to pre-scheduling pointedly is done
The user of business, effectively shortens uplink time delay, and then is effectively improved the transfer rate of downlink business.At harbour TOS
The transmitting procedure of business is applied the user scheduling method in above-mentioned the application, verifies after tested, it is possible to promote TOS
The downloading rate about 20% of business.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. done, should be included in the present invention protect
Within the scope of protecting.
Claims (5)
1. the user scheduling method in a communication system, it is characterised in that including:
Base station receives the uplink message that user sends, and is carrying out under TCP traffic according to the message identification of PDCP layer
Carry user, and be added into downloading Subscriber Queue；
When carrying out the pre-scheduling of uplink user, the user in Subscriber Queue is downloaded in preferential pre-scheduling.
Method the most according to claim 1, it is characterised in that the described message identification according to PDCP layer is
The download user carrying out TCP traffic includes:
Within the setting time, return bag number according to the ACK of the counting messages TCP of PDCP layer, if more than the number set
Amount, it is determined that relative users is to carry out the download user of TCP traffic.
Method the most according to claim 2, it is characterised in that the counting messages TCP's of described PDCP layer
ACK returns bag number and includes:
If the message length of PDCP layer is less than setting thresholding, then it is assumed that this message is that the ACK of TCP returns bag；Or,
Read the TCP header of PDCP layer message, if ACK territory puts 1, then it is assumed that this message is the ACK of TCP
Return bag.
Method the most according to claim 1, it is characterised in that described in will identify that carry out TCP industry
When the download user of business adds download Subscriber Queue, add described download Subscriber Queue according to the time identified, and will
The user being newly added puts into queue tail.
Method the most according to claim 4, it is characterised in that described preferential pre-scheduling is downloaded in Subscriber Queue
User includes:
When carrying out the pre-scheduling of uplink user, described in first pre-scheduling, download the user in Subscriber Queue, and according to described
Download the order user therein of pre-scheduling successively from the beginning to the end in Subscriber Queue；In the complete described download user team of pre-scheduling
After all users in row, then other users that pre-scheduling is in addition to the user in described download Subscriber Queue.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510323081.3A CN106304379A (en) | 2015-06-12 | 2015-06-12 | A kind of user scheduling method in communication system |
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| CN201510323081.3A CN106304379A (en) | 2015-06-12 | 2015-06-12 | A kind of user scheduling method in communication system |
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| CN101141405A (en) * | 2007-10-17 | 2008-03-12 | 华为技术有限公司 | Wireless network data transmission method and wireless network controller |
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| CN102118298A (en) * | 2009-12-31 | 2011-07-06 | 联芯科技有限公司 | Method and device for improving data transmission efficiency at asymmetrical transmission speed |
| CN102420684A (en) * | 2011-11-04 | 2012-04-18 | 展讯通信（上海）有限公司 | Processing method of TCP (Transmission Control Protocol) data stream and communication device |
| CN102655447A (en) * | 2012-04-28 | 2012-09-05 | 北京创毅讯联科技股份有限公司 | Uploading data transmission method and device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141405A (en) * | 2007-10-17 | 2008-03-12 | 华为技术有限公司 | Wireless network data transmission method and wireless network controller |
| WO2011061003A1 (en) * | 2009-11-19 | 2011-05-26 | Icera Inc | Wireless terminal for transmitting packets of different types |
| CN102118298A (en) * | 2009-12-31 | 2011-07-06 | 联芯科技有限公司 | Method and device for improving data transmission efficiency at asymmetrical transmission speed |
| CN102104974A (en) * | 2011-02-28 | 2011-06-22 | 华为技术有限公司 | Method, device and system for carrying out uplink pre-scheduling processing |
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Application publication date: 20170104 |