CN103763745A - Achieving method for multi-mode terminal channel switching based on cognitive radio - Google Patents
Achieving method for multi-mode terminal channel switching based on cognitive radio Download PDFInfo
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- CN103763745A CN103763745A CN201310705565.5A CN201310705565A CN103763745A CN 103763745 A CN103763745 A CN 103763745A CN 201310705565 A CN201310705565 A CN 201310705565A CN 103763745 A CN103763745 A CN 103763745A
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Abstract
The invention discloses an achieving method for multi-mode terminal channel switching based on cognitive radio. The method includes the following steps that (1), when switching starts, a piece of channel switching notification information is sent through an original access channel; (2), if a terminal receives the channel switching notification information, the channel switching notification information is decoded, and information of a channel to be switched is decoded; (3), the terminal performs tuning on itself, and according to the analyzed information, setting meeting a target channel is configured; (4), the network channel starts to be switched, and if access is successful, communication information is sent to a new access channel for requesting service provision; (5), after the new access channel receives the information for requesting communication, response information is fed back to the corresponding terminal. The time period needed for obtaining a switching network among communication networks providing communication services by the utilization of different communication technologies can be minimized, and therefore network selection speed is high.
Description
Technical field
The present invention relates to one based on cognitive radio multi mode terminal channel switching method, belong to communication technical field.
Background technology
Current, mobile communication technology develops into third generation networks system from the code division multiple access as second generation network system and European gsm system, for example wideband CDMA (WCDMA) system. owing to there being the coverage of use second generation communication plan of huge and easy equipment, therefore at this transition period, when utilizing the infrastructure of second generation communication plan, the coverage of third generation communication plan is used in expansion even more widely. therefore, part terminal requirements is supported multiple mobile network simultaneously, the terminal that is designed to be during transition received in the service of specifying in third generation networks is produced as multi mode terminal, it is except can supporting third generation communication plan, can also support existing second generation communication plan.
This multi mode terminal comprises: idle handoff functionality, in idle condition execution pattern transition between WCDMA pattern and CDMA pattern; With the handoff functionality of communicating by letter, when terminal is when communication period enters shadow region from WCDMA network, without communication disruption in the situation that, carry out the mode transition of CDMA pattern.Due to the existing cdma network utilizing in second-generation system, therefore these functions are economical, but the shortcoming that has is: because needs switch fast between different modulating demodulator, cause and in terminal, need complicated hardware and software.Terminal equipment is under the prerequisite of not knowing current network, often formulate certain priority level, adopt the method for poll, the network formats that oneself can be supported is searched for successively, until can reside in, on a certain network, successfully realize access network and just calculated network selection, network selection speed is slow, and search may make network selection process reach a few minutes, even tens minutes.
Summary of the invention
The deficiency existing for prior art, it is fireballing based on cognitive radio multi mode terminal channel switching method that the object of the invention is to provide a kind of network selection.
To achieve these goals, the present invention realizes by the following technical solutions:
One of the present invention, based on cognitive radio multi mode terminal channel switching method, comprises following step:
(1), while starting to switch, by former access channel, send a channel-switch-announcement information;
(2) if terminal is received described channel-switch-announcement information, channel-switch-announcement information is decoded, decode the information of to be switched channel;
(3) described terminal is carried out tuningly to self, meets the setting of destination channel according to the information configuration parsing;
(4) start handover network channel, if accessed successfully, to new access channel, send the communication information, request provides service;
(5) described new access channel receives after the information of request communication, can give and a response message of counterpart terminal feedback.
In step (5), if terminal is received the response message that channel sends, can feed back again a switching and complete information.
In step (1), described channel-switch-announcement packets of information is containing the detailed content of former channel and to be switched channel.
In step (2), if do not receive described channel-switch-announcement information, turn to step (1).
In step (4), if access unsuccessfully, again carry out tuningly, turn to step (3).
In step (5), if terminal is not received response message, handoff failure, the channel of access cannot provide service.
The present invention can be minimized between the communication network that uses the different communication technologys that communication service is provided and obtain the required time cycle of handover network, and network selection speed is fast.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
Referring to Fig. 1, one of the present invention, based on cognitive radio multi mode terminal channel switching method, comprises following step:
(1), while starting to switch, by former access channel, send a channel-switch-announcement information, the detailed content that content comprises former channel and to be switched channel.
(2) when terminal, receive after this message, channel-switch-announcement information is decoded, decode to be switched channel information.
(3) terminal is carried out tuningly to self, meets the setting of destination channel according to the information configuration parsing.
(4) start switching channels, if access unsuccessfully, again carry out tuning; If accessed successfully, to new access channel, send the communication information, request provides service.
(5) newly access channel and receive after the information of asking communication, can give and a response message of counterpart terminal feedback, if terminal is not received response message, handoff failure so, the channel of access cannot provide service; If terminal is received the response message that channel sends, can feed back again a switching and complete information.So far, channel has switched.
The present invention can be minimized between the communication network that uses the different communication technologys that communication service is provided and obtain the required time cycle of handover network, and network selection speed is fast.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. based on a cognitive radio multi mode terminal channel switching method, it is characterized in that, comprise following step:
(1), while starting to switch, by former access channel, send a channel-switch-announcement information;
(2) if terminal is received described channel-switch-announcement information, channel-switch-announcement information is decoded, decode the information of to be switched channel;
(3) described terminal is carried out tuningly to self, meets the setting of destination channel according to the information configuration parsing;
(4) start handover network channel, if accessed successfully, to new access channel, send the communication information, request provides service;
(5) described new access channel receives after the information of request communication, can give and a response message of counterpart terminal feedback.
2. according to claim 1ly based on cognitive radio multi mode terminal channel switching method, it is characterized in that, if terminal is received the response message that channel sends, can feed back again a switching and complete information.
3. according to claim 2ly based on cognitive radio multi mode terminal channel switching method, it is characterized in that,
In step (1), described channel-switch-announcement packets of information is containing the detailed content of former channel and to be switched channel.
4. according to claim 3ly based on cognitive radio multi mode terminal channel switching method, it is characterized in that,
In step (2), if do not receive described channel-switch-announcement information, turn to step (1).
5. according to claim 4ly based on cognitive radio multi mode terminal channel switching method, it is characterized in that,
In step (4), if access unsuccessfully, again carry out tuningly, turn to step (3).
6. according to claim 5ly based on cognitive radio multi mode terminal channel switching method, it is characterized in that,
In step (5), if terminal is not received response message, handoff failure, the channel of access cannot provide service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705565.5A CN103763745A (en) | 2013-12-19 | 2013-12-19 | Achieving method for multi-mode terminal channel switching based on cognitive radio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310705565.5A CN103763745A (en) | 2013-12-19 | 2013-12-19 | Achieving method for multi-mode terminal channel switching based on cognitive radio |
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| CN103763745A true CN103763745A (en) | 2014-04-30 |
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| CN201310705565.5A Pending CN103763745A (en) | 2013-12-19 | 2013-12-19 | Achieving method for multi-mode terminal channel switching based on cognitive radio |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992949A (en) * | 2005-12-26 | 2007-07-04 | 三星电子株式会社 | Method for acquiring handover network in multi-mode terminal and multi-mode terminal therefor |
| US20070211675A1 (en) * | 2006-03-09 | 2007-09-13 | Nikhil Jain | System and method for multi-network coverage |
| CN101304587A (en) * | 2007-05-09 | 2008-11-12 | 华为技术有限公司 | Association detection method, cognitive system, subscriber terminal and base station |
| CN101361293A (en) * | 2005-11-16 | 2009-02-04 | 韩国电子通信研究院 | Method for switching and managing frequency access in cognitive radio system, base station and subscriber station using the same |
| CN102256261A (en) * | 2011-07-14 | 2011-11-23 | 东北大学 | Dynamic spectrum access method with network cognition ability |
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2013
- 2013-12-19 CN CN201310705565.5A patent/CN103763745A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101361293A (en) * | 2005-11-16 | 2009-02-04 | 韩国电子通信研究院 | Method for switching and managing frequency access in cognitive radio system, base station and subscriber station using the same |
| CN1992949A (en) * | 2005-12-26 | 2007-07-04 | 三星电子株式会社 | Method for acquiring handover network in multi-mode terminal and multi-mode terminal therefor |
| US20070211675A1 (en) * | 2006-03-09 | 2007-09-13 | Nikhil Jain | System and method for multi-network coverage |
| CN101304587A (en) * | 2007-05-09 | 2008-11-12 | 华为技术有限公司 | Association detection method, cognitive system, subscriber terminal and base station |
| CN102256261A (en) * | 2011-07-14 | 2011-11-23 | 东北大学 | Dynamic spectrum access method with network cognition ability |
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Application publication date: 20140430 |