CN101902284B - Method and device for calibrating communication parameters - Google Patents
Method and device for calibrating communication parameters Download PDFInfo
- Publication number
- CN101902284B CN101902284B CN201010143931A CN201010143931A CN101902284B CN 101902284 B CN101902284 B CN 101902284B CN 201010143931 A CN201010143931 A CN 201010143931A CN 201010143931 A CN201010143931 A CN 201010143931A CN 101902284 B CN101902284 B CN 101902284B
- Authority
- CN
- China
- Prior art keywords
- communication
- distance
- unicast
- response timeout
- duration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method and a device for calibrating communication parameters, relates to communication technology, and aims at the defect that the conventional communication parameter setting is too professional to be used by ordinary users. The method for calibrating the communication parameters comprises the following steps of: determining a communication distance based on an initial distance to ensure that a response timeout length determined by taking the communication distance as a distance parameter meets a unicast communication condition, wherein the unicast communication condition comprises that a response data packet aiming at a unicast data packet is successfully received within a response period which starts from the sending moment of the unicast data packet and is as long as the response timeout length; determining a communication time delay based on the communication distance; and regulating the plurality of communication parameters based on the communication time delay. The invention also provides the device for calibrating the communication parameters. The method and the device can determine the communication distance based on a sending response mechanism of the unicast data packet in the communication establishment process and then determine the transmission time delay of signals so as to calibrate the communication parameters.
Description
Technical field
The present invention relates to the communication technology, more particularly, relate to a kind of messaging parameter calibration steps and device.
Background technology
Along with the development of Internet technology, people improve the dependence of network day by day, and the demand that the Internet inserts also increases day by day.Yet in a lot of scarcely populated areas, there are problems such as difficult wiring, cost height, arise at the historic moment so be positioned 802.11 wireless network Related products of short haul connection for the minority crowd is deployed with spider lines.
Fig. 1 is the communication scheme between existing wireless communications terminal and the WAP.As shown in Figure 1, communicate through wireless signal between wireless communication terminal 102 and the WAP 104, WAP 104 is generally provided by wireless internet service provider, and wireless communication terminal 102 then owns for the user.The user can obtain the network service that wireless internet service provider provides after being connected to WAP 104 through wireless communication terminal 102.
In concrete application process, the wireless signal between wireless communication terminal 102 and the WAP 104 is propagated propagation delay time in air.Because 802.11 agreements of standard consider for short-range application, thereby have ignored propagation delay time, promptly employed messaging parameter is not considered the influence of propagation delay time in the process that communicates based on 802.11 agreements.Yet if in telecommunication, use 802.11 agreements, the propagation delay time of signal will cause communication process to go wrong.Therefore need adjust messaging parameter, to consider the influence of propagation delay time.Yet existing parameter setting up procedure is specialty too, so domestic consumer's indigestion and use.
Therefore, need a kind of messaging parameter calibration program, can effectively solve the too professional problem that causes domestic consumer to use thus of existing communication parameter setting up procedure.
Summary of the invention
The technical problem that the present invention will solve is, to the too professional defective that causes domestic consumer to use thus of existing communication parameter setting up procedure, a kind of messaging parameter calibration steps and device is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of messaging parameter calibration steps is used for a plurality of messaging parameters are calibrated, and said method comprises:
Confirm communication distance based on initial distance; So that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition; Wherein, Said unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration;
Confirm communication delay based on said communication distance;
Based on said communication delay said a plurality of messaging parameters are adjusted.
Preferably, saidly confirm that based on initial distance communication distance further comprises:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance.
Preferably, saidly confirm that based on initial distance communication distance further comprises:
Based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition;
Said communication distance is set to said adjustment result.
Preferably, said method further comprises, confirms said response timeout duration based on following formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration.
Preferably, said a plurality of messaging parameter comprises following parameters:
The response timeout duration;
Slot time;
The overtime duration of CTS.
A kind of messaging parameter calibrating installation is used for a plurality of messaging parameters are calibrated, and said device comprises:
The communication distance determination module; Be used for confirming communication distance based on initial distance; So that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition; Wherein, said unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration;
The communication delay determination module is used for confirming communication delay based on said communication distance;
The messaging parameter adjusting module is used for based on said communication delay said a plurality of messaging parameters being adjusted.
Preferably, said communication distance determination module is further used for:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance.
Preferably, said communication distance determination module is further used for:
Based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition;
Said communication distance is set to said adjustment result.
Preferably, said communication distance determination module is further used for, and confirms said response timeout duration based on following formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration.
Preferably, said a plurality of messaging parameter comprises following parameters:
The response timeout duration;
Slot time;
The overtime duration of CTS.
The technical scheme of embodiment of the present invention; Have following beneficial effect: messaging parameter calibration steps provided by the invention and device are set up in the process transmission response mechanism based on unicast packet and are confirmed communication distance communicating by letter; And confirm the propagation delay time of signal on this basis, in view of the above messaging parameter is calibrated.Therefore, technical scheme provided by the invention can effectively be expanded the applications distances (for example 802.11g expands to 50 kms from 4.2 kms) of 802.11 wireless protocols.Technical scheme provided by the invention can realize the calibration of messaging parameter automatically, and whole process need not the user and participates in, and therefore uses very convenient.In addition, technical scheme provided by the invention need not communication equipment is improved significantly, therefore is easy to promote the use of.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the communication scheme between existing wireless communications terminal and the WAP;
Fig. 2 is the flow chart according to the messaging parameter calibration steps of the present invention's one preferred embodiment;
Fig. 3 is the schematic diagram that unicast packet is replied retransmission mechanism;
Fig. 4 is the flow chart according to the messaging parameter calibration steps of the present invention's one preferred embodiment;
Fig. 5 is the logical construction sketch map according to the messaging parameter calibrating installation of the present invention's one preferred embodiment.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The invention provides a kind of messaging parameter calibration steps and device, can set up in the process transmission response mechanism in communication and confirm communication distance, and confirm the propagation delay time of signal on this basis, in view of the above messaging parameter is calibrated based on unicast packet.Technical scheme provided by the invention is the calibration of time limit messaging parameter automatically, and whole process need not the user and participates in, and therefore uses very convenient.In addition, technical scheme provided by the invention need not communication equipment is improved significantly, therefore is easy to promote the use of.Just combine accompanying drawing and specific embodiment to come technical scheme provided by the invention is described in detail below.
Fig. 2 is the flow chart according to the messaging parameter calibration steps 200 of the present invention's one preferred embodiment.As shown in Figure 2, method 200 starts from step 202.
Subsequently; At next step 204; Confirm communication distance based on initial distance so that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition, wherein; The unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration.
In view of the particularity of wireless transmission medium, the wireless signal of convey data packets is interfered in process of transmitting easily, causes occurring wrong bag or packet loss.Be head it off, in 802.11 wireless communication protocols, stipulated replying and retransmission mechanism of unicast packet, to reduce the influence that possibly cause because of disturbing.Fig. 3 is the schematic diagram that unicast packet is replied retransmission mechanism.As shown in Figure 3, this is replied and the retransmission mechanism regulation, and transmit leg whenever sends out a unicast packet, just picks up counting to wait for recipient's response.The recipient receives the proper data bag, can return a response data packet immediately and give transmit leg, successfully receives with the packet of notifying its transmission of transmit leg.If transmit leg is not received the response data packet from the recipient in response timeout duration (ACK Timeout), then think and send failure, need resend packet.
Can be seen from the foregoing, can confirm the communication delay that causes because of communication distance by above-mentioned replying with retransmission mechanism, above-mentioned unicast communication condition is replying of corresponding above-mentioned unicast packet and retransmission mechanism.
In concrete implementation procedure, above-mentioned messaging parameter can comprise following parameters:
Response timeout duration (Ack Timeout);
Slot time (Slot Time);
The overtime duration of CTS (Clear To Send Timeout).
In concrete implementation procedure, above-mentionedly confirm that based on initial distance communication distance further comprises:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance; And based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition; Said communication distance is set to said adjustment result.
In concrete implementation procedure, above-mentioned initial distance can be set to 0 km, and above-mentionedly can be set to 1 km apart from step-length.
In addition, in concrete implementation procedure, above-mentioned response timeout duration can calculate according to formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration
Subsequently, at next step 206, confirm communication delay based on said communication distance.
In concrete implementation procedure, above-mentioned communication delay can calculate according to formula:
Communication delay=communication distance/the light velocity
Subsequently, at next step 208, said a plurality of messaging parameters are adjusted based on said communication delay.
At last, method 200 ends at step 210.
For further describing the implementation method of messaging parameter calibration steps of the present invention, it is further described below in conjunction with Fig. 3.
Fig. 4 is the flow chart according to the messaging parameter calibration steps 400 of the present invention's one preferred embodiment.As shown in Figure 4, method 400 starts from step 402.
Subsequently, at next step 404, the initial distance that communication distance is set to preset.In concrete implementation procedure, initial distance can be set to 0 km.
Subsequently,, the response timeout duration is set, particularly, can said response timeout duration be set according to formula based on communication distance and preset initial duration at next step 406:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration
Subsequently, at next step 408, send unicast packet;
Subsequently, at next step 410, judge whether in said response timeout duration, to receive this unicast packet corresponding response packet, if then forward step 412 to, otherwise forward step 414 to;
As indicated above; If in said response timeout duration, receive this unicast packet corresponding response packet in step 410 judgement; Then forward step 412 to, based on this communication distance said a plurality of messaging parameters are calibrated, particularly; Comprise based on said communication distance and confirm communication delay, based on said communication delay said a plurality of messaging parameters are adjusted again.
In concrete implementation procedure, above-mentioned communication delay can calculate according to formula:
Communication delay=communication distance/the light velocity
In concrete implementation procedure, above-mentioned messaging parameter comprises following parameters:
The response timeout duration;
Slot time
The overtime duration of CTS.
Subsequently, method 400 forwards step 416 to.
As indicated above, if in said response timeout duration, do not receive this unicast packet corresponding response packet, then forward step 414 in step 410 judgement, what use was preset adjusts communication distance apart from step-length, gets back to step 406 then.In concrete implementation procedure, above-mentionedly can be set to 1 km apart from step-length.
At last, method 400 ends at step 416.
In concrete implementation procedure, above-mentioned messaging parameter method of adjustment can be accomplished in wireless communication terminal connects the process of WAP.In fact, in concrete implementation procedure, wireless communication terminal begins above-mentioned calibration process based on the response timeout duration in the time of can after startup, sending first unicast packet.The process that wireless communication terminal connects WAP can be divided into scanning, authentication, related three phases.Wherein sweep phase can be divided into active scan and drive sweep.Active scan realizes that through initiatively initiating the probe requests thereby packet drive sweep is then realized through receiving beacon (beacon) frame.Two kinds of scan modes are carried out simultaneously, when wireless communication terminal scan will be related WAP the time, promptly begin authentication phase.Active scan can be sent the probe requests thereby packet of clean culture, and the authentication data packet that authentication phase is sent also is a unicast packet, and therefore communications parameter method of adjustment provided by the invention all can be carried out in active scan and authentication phase.
The present invention also provides a kind of messaging parameter calibrating installation, just combines Fig. 5 to be described in greater detail below.
Fig. 5 is the logical construction sketch map according to the messaging parameter calibrating installation 500 of the present invention's one preferred embodiment.As shown in Figure 5, messaging parameter calibrating installation 500 comprises communication distance determination module 502, communication delay determination module 504 and messaging parameter adjusting module 506.
Communication distance determination module 502 is used for confirming communication distance based on initial distance; So that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition; Wherein, Said unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration.
Specifically, communication distance determination module 502 is further used for:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance.
Based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition; Said again communication distance is set to said adjustment result.
In concrete implementation procedure, communication distance determination module 502 is further used for, and confirms said response timeout duration based on following formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration.
Communication delay determination module 504 is used for confirming communication delay based on said communication distance.
In concrete implementation procedure, communication delay determination module 504 can be confirmed communication delay based on formula:
Communication delay=communication distance/the light velocity
Messaging parameter adjusting module 506 is used for based on said communication delay said a plurality of messaging parameters being adjusted.
In concrete implementation procedure, above-mentioned messaging parameter comprises following parameters:
The response timeout duration;
Slot time;
The overtime duration of CTS.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a messaging parameter calibration steps is used for a plurality of messaging parameters that the propagation delay time that receives wireless signal influences are calibrated, and it is characterized in that said method comprises:
Confirm communication distance based on initial distance; So that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition; Wherein, Said unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration;
Confirm communication delay based on said communication distance;
Based on said communication delay said a plurality of messaging parameters are adjusted.
2. messaging parameter calibration steps according to claim 1 is characterized in that, saidly confirms that based on initial distance communication distance further comprises:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance.
3. messaging parameter calibration steps according to claim 1 and 2 is characterized in that, saidly confirms that based on initial distance communication distance further comprises:
Based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition;
Said communication distance is set to said adjustment result.
4. messaging parameter calibration steps according to claim 3 is characterized in that, said method further comprises, confirms said response timeout duration based on following formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration.
5. messaging parameter calibration steps according to claim 4 is characterized in that, said a plurality of messaging parameters comprise following parameters:
The response timeout duration;
Slot time;
The overtime duration of CTS.
6. a messaging parameter calibrating installation is used for a plurality of messaging parameters that the propagation delay time that receives wireless signal influences are calibrated, and it is characterized in that said device comprises:
The communication distance determination module; Be used for confirming communication distance based on initial distance; So that with this communication distance as distance parameter and definite response timeout duration satisfies the unicast communication condition; Wherein, said unicast communication condition comprises, originate in the unicast packet delivery time, length is successfully to receive the response data packet to this unicast packet in the response duration of said response timeout duration;
The communication delay determination module is used for confirming communication delay based on said communication distance;
The messaging parameter adjusting module is used for based on said communication delay said a plurality of messaging parameters being adjusted.
7. messaging parameter calibrating installation according to claim 6 is characterized in that, said communication distance determination module is further used for:
With said initial distance as said distance parameter and definite response timeout duration when satisfying the unicast communication condition, said communication distance is set to said initial distance.
8. according to claim 6 or 7 described messaging parameter calibrating installations, it is characterized in that said communication distance determination module is further used for:
Based on said initial distance and definite response timeout duration when not satisfying the unicast communication condition; Progressively adjust said initial distance with preset apart from step-length, up to the adjustment result as said distance parameter and definite response timeout duration satisfies the unicast communication condition;
Said communication distance is set to said adjustment result.
9. messaging parameter calibrating installation according to claim 8 is characterized in that, said communication distance determination module is further used for, and confirms said response timeout duration based on following formula:
Response timeout duration=(2 * distance parameter/light velocity)+preset initial duration.
10. messaging parameter calibrating installation according to claim 9 is characterized in that, said a plurality of messaging parameters comprise following parameters:
The response timeout duration;
Slot time;
The overtime duration of CTS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010143931A CN101902284B (en) | 2010-04-02 | 2010-04-02 | Method and device for calibrating communication parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010143931A CN101902284B (en) | 2010-04-02 | 2010-04-02 | Method and device for calibrating communication parameters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101902284A CN101902284A (en) | 2010-12-01 |
| CN101902284B true CN101902284B (en) | 2012-10-24 |
Family
ID=43227515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010143931A Active CN101902284B (en) | 2010-04-02 | 2010-04-02 | Method and device for calibrating communication parameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101902284B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6191466B2 (en) * | 2014-01-09 | 2017-09-06 | 富士通株式会社 | VIDEO DISTRIBUTION SYSTEM AND NODE DEVICE USED IN VIDEO DISTRIBUTION SYSTEM |
| CN111435873A (en) * | 2019-03-26 | 2020-07-21 | 维沃移动通信有限公司 | Hybrid automatic repeat request feedback method and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126538A (en) * | 1993-07-05 | 1996-07-10 | 诺基亚电信公司 | Base station with time-aligned mobile transmitting moments according to distance to base station |
| CN1830163A (en) * | 2003-05-23 | 2006-09-06 | 讯宝科技公司 | Self calibration of signal strength location system |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
-
2010
- 2010-04-02 CN CN201010143931A patent/CN101902284B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126538A (en) * | 1993-07-05 | 1996-07-10 | 诺基亚电信公司 | Base station with time-aligned mobile transmitting moments according to distance to base station |
| CN1830163A (en) * | 2003-05-23 | 2006-09-06 | 讯宝科技公司 | Self calibration of signal strength location system |
| CN101330334A (en) * | 2008-03-04 | 2008-12-24 | 深圳市中兴集成电路设计有限责任公司 | Apparatus and method for calibrating communication distance of radio frequency SIM card |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101902284A (en) | 2010-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8830861B2 (en) | Wireless communication method and apparatus for transmitting and receiving frame through relay | |
| TWI389513B (en) | Cell network selectively applying proxy mode to minimize power | |
| CN101729106B (en) | Enhanced up-link power control based on interference management and transmission quality control | |
| EP2918022B1 (en) | Systems and methods for packet relaying | |
| CN101820668B (en) | A kind of WAP method of work and WAP | |
| RU2625943C2 (en) | Method of entity selection based on full quality of link | |
| EP1921877A3 (en) | Radion base station, relay station and radio communication method | |
| WO2010054602A1 (en) | Method and base station for deciding discontinuous transmission mode | |
| EP2228937A3 (en) | Interference limitation for retransmissions | |
| US9265045B2 (en) | Method and apparatus for adjusting signal transmission starting point of terminal in wireless network | |
| JP2011234052A5 (en) | ||
| TW200742399A (en) | Mobile communication terminal and method for transmission of image in mobile messenger service | |
| KR20150021059A (en) | Data transmitting and forwarding method, device, and system | |
| EP2262147A3 (en) | Communication system | |
| CN101902284B (en) | Method and device for calibrating communication parameters | |
| EP2458798A3 (en) | Methods and apparatus for configuring subscriber quality of service profiles | |
| WO2009023458A3 (en) | Method and system for managing transmissions in a wireless communication network | |
| CN103546248B (en) | A kind of ACK time-out time Automatic adjustment method | |
| EP3002978A1 (en) | Method for remote coverage and base station | |
| JP2012182563A (en) | Wireless communication device | |
| KR101143100B1 (en) | Method and Apparatus that transmit sync standard signal in communication station | |
| KR100818555B1 (en) | Apparatus and method for delay management in tcp/ip communication of mobile communication system | |
| EP2175590A1 (en) | Method and apparatus for communicating over multiple networks | |
| WO2015173957A1 (en) | Communication device and wireless mesh network | |
| CN102571505B (en) | A kind of Sensor Network method for sending information, Apparatus and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TP-LINK TECHNOLOGIES CO., LTD. Free format text: FORMER NAME: SHENZHEN TP-LINK TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518057, Guangdong Nanshan District Shenzhen deep South Road Science and Technology Park industrial workshop 24, South Section 1, 3-5, 28 north section 1-4 Patentee after: TP-LINK Technologies Co., Ltd. Address before: 2, 1-6 floor, South District, Pingshan Industrial Zone, Taoyuan street, Nanshan District, Guangdong, Shenzhen 518055, China Patentee before: Shenzhen TP-Link Technology Co., Ltd. |