CN104469904B - A kind of radio multi-terminal information collecting method - Google Patents
A kind of radio multi-terminal information collecting method Download PDFInfo
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- CN104469904B CN104469904B CN201410639210.5A CN201410639210A CN104469904B CN 104469904 B CN104469904 B CN 104469904B CN 201410639210 A CN201410639210 A CN 201410639210A CN 104469904 B CN104469904 B CN 104469904B
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- wireless terminal
- base station
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- terminal
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 31
- 230000004044 response Effects 0.000 claims abstract description 21
- 230000006854 communication Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 16
- 230000005059 dormancy Effects 0.000 claims description 9
- 230000002618 waking effect Effects 0.000 claims description 5
- 230000000284 resting effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of radio multi-terminal information collecting method, this method is specially：Wireless base station sends synchronous code with certain cycle interval, and wireless terminal receives synchronous code with certain wake-up period, wireless terminal at most wake up after the power is turned on can complete twice it is synchronous with wireless base station time reference；During wireless base station silence, each wireless terminal is assigned one section of response time；Wireless terminal can calculate the coordinate position of this wireless terminal responses time according to benchmark synchronization time of wireless base station.Each wireless terminal is only made a response within the response time of oneself, and information is sent to wireless base station, remaining time is then in a dormant state.The present invention is suitable for multiple spot short message wireless collection in small area；Wireless terminal in a dormant state, reduces power consumption, extends the working time of terminal for a long time；Distributed in order by the response time to wireless terminal, avoid the response collisions of multiple wireless terminals.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to a kind of radio multi-terminal information collecting method.
Background technology
Wireless communication system is provided convenience for being wirelessly transferred for data, avoids the erection of connecting cable, saved into
This.On one point in multipoint wireless communication system, in the communication process of multiple terminals and base station, it is necessary to act on certain agreement rule
Model is just avoided that the unordered communication contention aware sent caused by data in multiple terminals.
In the prior art, there are a variety of known methods to solve this conflict, such as each terminal is examined before data are sent
Survey current network whether there is other-end in transmission data, if so, just being sent when then waiting network idle.This method can not be thorough
Bottom solves communication contention aware, at the same can not balanced each terminal send the chances of data.Master slave communication agreement is with the side of " roll-call "
Formula requires each terminal to respond base station taking turn, can be reliably completed data transfer, contention-free；But master slave communication has
One it is fatal the problem of, be exactly that each terminal juncture will be in " clear-headed " state, for battery-powered wireless terminal
Speech, the service life of battery determines the service life of terminal, if terminal is constantly in open state, will run out of the electricity of battery rapidly
Amount.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of radio multi-terminal information collecting method.
The present invention is realized by following technical method：
Wireless base station and wireless terminal alternately take communication channel, and wireless base station sends synchronous code when taking communication channel,
It is synchronous with wireless base station time reference to be used to help wireless terminal completion；Each wireless terminal is assigned one section of independent response
Time, sends this end message, the order of each terminal response base station characterizes the ground of this terminal for wireless terminal to wireless base station
Location information（Fig. 1）；Each wireless terminal usually in a dormant state, by setting wireless base station width synchronization time and wireless terminal
Response time width, ensure wireless terminal at most wake up after the power is turned on can complete twice it is synchronous with wireless base station time reference,
So as to help wireless terminal to determine that this wakes up the coordinate position of moment on a timeline；This method specifically includes following steps：
（1）Synchronous code BSSC, the synchronous code BSSC are sent when wireless base station takes communication channel and includes several synchronizations
Code word, each synchronization code word include several sync bytes, synchronization code word sequence number and check bit；
（2）Wireless terminal wake up after the data of reception are arranged in order in fifo fashion, often receive a data just into
Sync byte of row is screened, and when the sync byte sequence of the data fit wireless base station of reception, sync byte, which is screened, to be completed,
Thereafter data are synchronization code word sequence number and check bit；After wireless terminal receives a complete synchronization code word, then pass through
Check bit differentiates the correctness of synchronization code word, if check bit differentiates mistake, abandons the synchronization code word of this reception, after
Continued access receives next synchronization code word as synchronous base；Any one correct synchronization code word that wireless terminal receives, can be with
Determine the coordinate position of current time on a timeline；
（3）Wireless terminal determines oneself in synchronous code according to the synchronization code word sequence number and the address number of oneself of reception
Time coordinate in BSSC, calculates this moment away from the time interval between itself response time, sets the dormancy time of oneself, to protect
Demonstrate,prove and automatically waken up when the response time of oneself arrives；
（4）Wireless terminal dormancy time arrives, and automatically wakes up, and information is sent to wireless base station（Base station is now in receiving shape
State）, institute's photos and sending messages include several sync bytes, several data message byte, end code and check bit；
（5）After wireless terminal completes this data sending, the dormancy time of oneself is once again set up, to ensure to wake up next time
When be able to detect that the synchronous code of wireless base station, reenter resting state afterwards.
Especially, if as shown in Figure 1, being the time required to wireless base station sends BSSC, all wireless terminal responses it is total
Time is, work as satisfaction, wireless terminal wakeup time takesWhen, it is ensured that at most waking up twice
It can complete synchronous with wireless base station time reference.
The invention has the advantages that：Each wireless terminal, which is only automatically waken up within the response time of oneself to base station, to be sent
The information of this terminal, order of response impliedly represent the address information of this terminal, and the information content and each terminal for reducing communication have
Sequence uses communication channel, avoids communication contention aware；Each wireless terminal is chronically at resting state, effectively reduces the electricity of terminal
Amount consumption, extends the service life of battery.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of radio multi-terminal information collecting method；
Fig. 2 is wireless base station synchronous code data format；
Fig. 3 is that wireless terminal sends information data format.
Embodiment
The present invention is described in detail below in conjunction with the attached drawing in the embodiment of the present invention, the objects and effects of the present invention will become
It is more obvious.
A kind of radio multi-terminal information collecting method of the present invention, specifically includes following steps：
（1）Wireless base station periodically sends synchronous code BSSC, includes several synchronization code words, its data format such as Fig. 2
It is shown.
Each synchronization code word is by 3 sync bytes（11111110,1101001,10010111）, synchronization code word sequence number and school
Test position composition.Due to application claimsIf wireless terminal realizes, its available machine time probability synchronous with wireless base station
50% certainly will be more than, be unfavorable for the low power operation of terminal.If the BSSC that wireless base station is sent makees appropriate segmentation, it is divided into m
Synchronization code word, as long as then terminal is completely received a synchronization code word, it is possible to the synchronization code word sequence number in synchronization code word
Oneself time coordinate in BSSC is determined, so as to complete synchronous with wireless base station.
3 sync bytes in synchronization code word are used for wireless terminal identification synchronous code, and check bit is used for synchronization code word just
True property is differentiated, if check bit differentiates mistake, is abandoned the synchronization code word of this reception, is continued to next synchronization code word
As synchronous base.
（2）The data of reception are arranged in order by wireless terminal in fifo fashion after automatically waking up, and often receive a data
Screened with regard to carrying out a sync byte, when the data fit 11111110 of reception, 1101001,10010111 sequence, synchronization character
Section, which is screened, to be completed, and data thereafter are synchronization code word sequence number and check bit.A complete synchronous code is received in wireless terminal
After word, then by check bit the correctness of synchronization code word is differentiated, if check bit differentiates mistake, abandon this reception
Synchronization code word, continues to next synchronization code word as synchronous base.
（3）Wireless terminal is according to the synchronization code word sequence number of oneself（Address number）, determine oneself time seat in BSSC
Mark, calculates this moment away from the time interval between the response time, the dormancy time of oneself is set, to ensure the response time at oneself
Automatically waken up during arrival.
（4）Wireless terminal dormancy time arrives, and automatically wakes up, and sends information to wireless base station, institute's photos and sending messages include 3 synchronizations
Byte, data message byte, end code and check bit, its data format are as shown in Figure 3.
3 sync bytes are 00000001,00101101,01101000, and the length and content of data message byte are by being
System definition, end code 7bit（0101101）, a byte is collectively formed with check bit p.The purpose of 3 sync bytes is set
It is to aid in that wireless base station is synchronous with wireless terminal data, check bit is used to differentiate the correctness for receiving data, and end code is beneficial to base
Stand and distinguish the data of each terminal.
Especially, after wireless terminal completes this data sending, the dormancy time of oneself need to be once again set up, it is next to ensure
The secondary synchronous code that wireless base station is able to detect that when waking up, reenters resting state afterwards.
Content described in a kind of radio multi-terminal information collecting method of the present invention, only passes through the implementation for being beneficial to description
Example tells about the principle of this method, without departing from the principles of the present invention, any form is carried out to links of the present invention
Protection scope of the present invention is belonged to the change in details.
Claims (1)
1. a kind of radio multi-terminal information collecting method, it is characterised in that wireless base station and wireless terminal alternately take communication letter
Road, wireless base station send synchronous code when taking communication channel, are used to help wireless terminal and complete and wireless base station time reference
It is synchronous；Each wireless terminal is assigned one section of independent response time, this terminal letter is sent to wireless base station for wireless terminal
Breath, the order of each terminal response base station characterize the address information of this terminal；Each wireless terminal usually in a dormant state, by setting
Wireless base station width synchronization time and wireless terminal responses time width are put, ensures that wireless terminal at most wakes up twice i.e. after the power is turned on
Can complete it is synchronous with wireless base station time reference, so as to help wireless terminal to determine that this wakes up moment seat on a timeline
Cursor position；This method specifically includes following steps：
(1) synchronous code BSSC, the synchronous code BSSC are sent when wireless base station takes communication channel and includes several synchronization code words,
Each synchronization code word includes several sync bytes, synchronization code word sequence number and check bit；
(2) data of reception are arranged in order by wireless terminal in fifo fashion after waking up, and are often received a data and are just carried out one
Subsynchronous byte is screened, and when the sync byte sequence of the data fit wireless base station of reception, sync byte, which is screened, to be completed, synchronous
Data after byte sequence are synchronization code word sequence number and check bit；After wireless terminal receives a complete synchronization code word,
The correctness of synchronization code word is differentiated by check bit again, if check bit differentiates mistake, abandons the synchronization of this reception
Code word, continues to next synchronization code word as synchronous base；Any one correct synchronization code word that wireless terminal receives,
It can determine the coordinate position of current time on a timeline；
(3) wireless terminal determines oneself time coordinate in synchronous code BSSC, calculates this according to the synchronization code word sequence number of reception
Carve away from the time interval between itself response time, the dormancy time of oneself is set, to ensure the response time arrival at oneself
When automatically wake up；
(4) wireless terminal dormancy time arrives, and automatically wakes up, and sends information to wireless base station, institute's photos and sending messages include several synchronizations
Byte, several data message byte, end code and check bit；
(5) after wireless terminal completes this data sending, the dormancy time of oneself is once again set up, energy when waking up with guarantee next time
Enough detect the synchronous code of wireless base station, reenter resting state afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410639210.5A CN104469904B (en) | 2014-11-13 | 2014-11-13 | A kind of radio multi-terminal information collecting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410639210.5A CN104469904B (en) | 2014-11-13 | 2014-11-13 | A kind of radio multi-terminal information collecting method |
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| CN104469904A CN104469904A (en) | 2015-03-25 |
| CN104469904B true CN104469904B (en) | 2018-04-17 |
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| CN107888320A (en) * | 2017-12-11 | 2018-04-06 | 国网浙江省电力有限公司 | A kind of frame synchronization detection method based on OTN |
| CN110139348B (en) * | 2019-05-21 | 2022-10-28 | 广东几米星联通讯有限公司 | RDSS communication method and terminal thereof |
Citations (3)
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|---|---|---|---|---|
| CN1642057A (en) * | 2004-01-18 | 2005-07-20 | 方正通信技术有限公司 | Initial synchronizing method for community search for CDMA communication system |
| CN1798003A (en) * | 2004-12-22 | 2006-07-05 | 方正通信技术有限公司 | Initial synchronization method in subzone search of CDMA communication system |
| US20110095866A1 (en) * | 2008-09-12 | 2011-04-28 | Roundtrip Llc | Locator inventory system |
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2014
- 2014-11-13 CN CN201410639210.5A patent/CN104469904B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1642057A (en) * | 2004-01-18 | 2005-07-20 | 方正通信技术有限公司 | Initial synchronizing method for community search for CDMA communication system |
| CN1798003A (en) * | 2004-12-22 | 2006-07-05 | 方正通信技术有限公司 | Initial synchronization method in subzone search of CDMA communication system |
| US20110095866A1 (en) * | 2008-09-12 | 2011-04-28 | Roundtrip Llc | Locator inventory system |
Non-Patent Citations (1)
| Title |
|---|
| 用于ZigBee网络的同步休眠与唤醒算法;谢琦等;《计算机应用》;20100630;第30卷;全文 * |
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