CN101378590A - Method for reducing message transmission collision - Google Patents
Method for reducing message transmission collision Download PDFInfo
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- CN101378590A CN101378590A CNA2007101486784A CN200710148678A CN101378590A CN 101378590 A CN101378590 A CN 101378590A CN A2007101486784 A CNA2007101486784 A CN A2007101486784A CN 200710148678 A CN200710148678 A CN 200710148678A CN 101378590 A CN101378590 A CN 101378590A
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- identification code
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Abstract
The invention discloses a method used for reducing the sending collision of reverse burst messages, comprising the steps as follows: (1) all terminals which have the sending demands of reverse burst messages respectively select an identification code out of a group of different identification codes and send the identification code to a base station; (2) after receiving the identification code sent by the terminals, the base station sends a broadcast message which is provided with a sending possibility of the reverse burst messages and any received identification code; and (3) after receiving the broadcast message, the terminal compares the selected identification code with the identification code in the broadcast message, if both codes are identical, the reverse burst message is sent on the sending possibility appointed by the broadcast message; if both codes are different, the step (1) is repeated. The method can effectively reduce the possibility of the collision generated when the reverse burst messages are sent by the user which uses the same channel to send the burst messages.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of communication technology that reduces message transmission collision.
Background technology
In mobile communication system, the most valuable resource is exactly aerial bandwidth resources.Terminal needs to send reverse shocking flash sometimes, such as inserting message, burst short data etc., it is uncertain that these message send opportunity, if be used for sending these message specially for channel of each terminal distribution, then this channel can be owing to the most of the time all is in the waste that idle condition causes the air bandwidth resource, general in order to save aerial bandwidth resources, communication system can send reverse shocking flash to some same channel of terminal distribution with general character, like this can efficent use of resources, if but the terminal under same channel is being sent out message sometime simultaneously, the collision in the time of then may sending because of message makes message send failure.
Summary of the invention
Send a plurality of terminals of shocking flash when synchronization sends reverse shocking flash in order to overcome same backward channel of use, the message collision takes place cause message to send the technological deficiency of failure, the present invention proposes a kind of method that reverse shocking flash sends collision that reduces.
For achieving the above object, the method that the present invention proposes specifically may further comprise the steps by the following technical solutions:
Each terminal that step 1 has reverse shocking flash to send demand is selected one respectively and is sent to the base station from one group of identification code that has nothing in common with each other;
Receive after the identification code of above-mentioned terminal transmission the step 2 base station, sends broadcast, has the send opportunity of reverse shocking flash and arbitrary identification code of above-mentioned reception in this broadcast;
The step 3 terminal receives after this broadcast, in the identification code of more above-mentioned selection and the broadcast with identification code, if identical, then on the send opportunity of broadcast appointment, send reverse shocking flash, if inequality, repeating step (1) then.
As the described one group of identification code that has nothing in common with each other of step 1 is base station assigns.
As the described one group of identification code that has nothing in common with each other of step 1 is CDMA (code division multiple access) sign indicating number collection.
The identification code that sends to the base station as the described terminal of step 1 is that terminal is selected at random.
The identification code that sends to the base station as the described terminal of step 1 is that this terminal sends to the base station on reverse control channel.
Compared with prior art, the chance that when sending reverse shocking flash, bumps of the method for the reverse shocking flash collision of minimizing that proposes of the present invention user that can effectively minimizing uses same channel to send reverse shocking flash.
Description of drawings
Fig. 1 is based on the schematic diagram of method of minimizing message transmission collision of the mobile communication system of OFDM (OFDM) standard.
Fig. 2 is based on the schematic diagram of method of minimizing message transmission collision of the mobile communication system of WCDMA (Wideband Code Division Multiple Access (WCDMA)) standard.
Embodiment
Below in conjunction with the drawings and specific embodiments the method for the invention is described in further detail.
Figure one is based on the schematic diagram of method of minimizing message transmission collision of the mobile communication system of OFDM (OFDM) standard.
101 base stations are concentrated from the CDMA sign indicating number and are told a coding subclass and send to terminal;
102 need to send terminal CDMA coding of picked at random from above-mentioned subclass of reverse shocking flash, on Reverse Common Control Channel this CDMA sign indicating number are sent to the base station;
The CDMA sign indicating number that terminal is sent is successfully received in 103 base stations, then in the sub-district, send the reverse message send opportunity indication of broadcasting, the CDMA sign indicating number that comprises message send opportunity and certain terminal in the Indication message of this broadcasting, this send opportunity are meant base station bandwidth to terminal distribution on up link;
Whether 104 each terminal that has sent the specific CDMA sign indicating number on Reverse Common Control Channel are received the CDMA sign indicating number that compares in the broadcast after the reverse message send opportunity indication of this broadcasting consistent with the CDMA sign indicating number of this terminal selection, if it is consistent, change step 105,, change step 102 if inconsistent;
105 terminals send reverse shocking flash on the send opportunity of base station appointment.
Figure two is based on the schematic diagram of method of minimizing message transmission collision of the mobile communication system of WCDMA (Wideband Code Division Multiple Access (WCDMA)) standard
201 base stations produce one group of identification code collection that has nothing in common with each other at random, and send to each terminal by the downlink broadcast channel;
The identification code that 202 terminals that need send reverse shocking flash are sent from above-mentioned base station is concentrated identification code of picked at random, on up competitive channel this identification code is sent to the base station;
The identification code that terminal is sent is successfully received in 203 base stations, then in the sub-district, send the reverse message send opportunity Indication message of broadcasting, the identification code that comprises message send opportunity and arbitrary terminal in the Indication message of this broadcasting, this send opportunity are meant base station frame number to terminal distribution on up link;
204 after each terminal that has sent identification code on the up competitive channel is received the reverse message send opportunity Indication message of above-mentioned broadcasting, relatively whether the identification code in the broadcast is consistent with the identification code of this terminal selection, if consistent, changes step 205, if inconsistent, change step 202;
205 above-mentioned terminals send reverse shocking flash on the send opportunity of base station appointment.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1. one kind is reduced the method that reverse shocking flash sends collision, it is characterized in that, may further comprise the steps:
(1) each terminal that has reverse shocking flash to send demand is selected one respectively and is sent to the base station from one group of identification code that has nothing in common with each other;
(2) receive after the identification code of above-mentioned terminal transmission the base station, sends broadcast, has the send opportunity of reverse shocking flash and arbitrary identification code of above-mentioned reception in this broadcast;
(3) terminal is received after this broadcast, in the identification code of more above-mentioned selection and the broadcast with identification code, if identical, then on the send opportunity of broadcast appointment, send reverse shocking flash, if inequality, repeating step (1) then.
2. method according to claim 1 is characterized in that, in the step (1), described one group of identification code that has nothing in common with each other is by base station assigns.
3. method according to claim 1 and 2 is characterized in that, in the step (1), described one group of identification code that has nothing in common with each other is a CDMA sign indicating number collection.
4. method according to claim 1 and 2 is characterized in that, in the step (1), described terminal sends to the identification code of base station and selects at random.
5. method according to claim 1 and 2 is characterized in that, in the step (1), described terminal is on reverse control channel the identification code of selecting to be sent to the base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101486784A CN101378590A (en) | 2007-08-29 | 2007-08-29 | Method for reducing message transmission collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101486784A CN101378590A (en) | 2007-08-29 | 2007-08-29 | Method for reducing message transmission collision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101378590A true CN101378590A (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101486784A Pending CN101378590A (en) | 2007-08-29 | 2007-08-29 | Method for reducing message transmission collision |
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| CN (1) | CN101378590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193945A1 (en) * | 2016-05-12 | 2017-11-16 | 电信科学技术研究院 | Method and device for transmitting uplink data |
-
2007
- 2007-08-29 CN CNA2007101486784A patent/CN101378590A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193945A1 (en) * | 2016-05-12 | 2017-11-16 | 电信科学技术研究院 | Method and device for transmitting uplink data |
| US10805946B2 (en) | 2016-05-12 | 2020-10-13 | China Academy Of Telecommunications Technology | Uplink data transmission method and device |
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Application publication date: 20090304 |