Channel scan method and architecture for wireless communication systems
AssigneeIndustrial Technology Research Institute
InventorsKuo-Tai Chiu, Yun-Yi Shih, Yao-Yi Huang, Pang-An Ting
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Abstract
In wireless communication system and method, a guard band detection (GBD) is performed in a channel to detect the existence of guard bands of a correct channel, so to predetermine that whether the current channel is correct or not. If GBD and a subsequent authorization are both passed in the channel, then the channel is determined as the correct channel. Besides, multiple point estimation (MPE) can be used to analyze the signal strengths in different frequencies to predict the location of the correct channel.
Claims24
A wireless communication method, comprising:
- selecting one channel from a plurality of channels;
- performing a guard band detection (GBD) in the selected channel to detect existence of a guard band of a correct channel;
- performing a subsequent process in the selected channel if the GBD is passed in the selected channel;
- and
- determining the selected channel as the correct channel if the subsequent process is passed in the selected channel.
A wireless communication method, comprising:
- measuring signal strengths in different frequencies respectively;
- checking whether the characteristics of the signal strengths are conformed to a condition;
- predicting a frequency according to the characteristics of the signal strengths and selecting one channel according to the predicted frequency if the condition is conformed;
- and
- determining the selected channel as a correct channel if a subsequent process is passed in the selected channel.
A wireless communication method, comprising:
- measuring signal strengths in different frequencies respectively;
- checking whether the characteristics of these signal strengths are conformed to a condition;
- predicting a frequency according to the characteristics of the signal strengths and selecting one channel according to the predicted frequency if the condition is conformed;
- performing a guard band detection (GBD) in the selected channel to detect the existence of a guard band of a correct channel;
- and
- checking whether the GBD and a subsequent process are both passed in the selected channel to determine whether the selected channel is the correct channel.
A wireless communication system, comprising:
- a channel selection module for selecting one channel from a plurality of channels;
- a GBD module coupled to the channel selection module, for performing a GBD in the selected channel to detect the existence of a guard band of a correct channel;
- and
- a subsequent processing module coupled to the GBD module, for performing a subsequent process in the channel having been passed, wherein the selected channel is determined as the correct channel if the subsequent process is passed in the channel.
A wireless communication system, comprising:
- an MPE module, for measuring signal strengths in different frequencies respectively, checking whether the characteristics of the signal strengths are conformed to a condition, and predicting a frequency according to the characteristics of the signal strengths and selecting one channel according to the predicted frequency if the condition is conformed;
- and
- a subsequent processing module coupled to the MPE module, wherein if the subsequent processing module determines that a subsequent process is passed in the selected channel, then the selected channel is determined as a correct channel.
A wireless communication system, comprising:
- an MPE module, for measuring signal strengths in different frequencies respectively, checking whether the characteristics of the signal strengths are conformed to a condition, and predicting a frequency according to the characteristics of the signal strengths in the different frequencies and selecting one channel according to the predicted frequency if the condition is conformed;
- a GBD module coupled to the MPE module, for performing a GBD in the selected channel to detect existence of a guard band of a correct channel;
- and
- a subsequent processing module coupled to the MPE module and the GBD module, wherein the subsequent processing module performs a subsequent process in the channel having been passed the GBD to determine whether the channel is the correct channel.
Dependencies are inferred from the claim text.