Frequency re-mapping for structure adaptive frequency hopping
AssigneeTexas Instruments Incorporated
InventorsAnuj Batra, Kofi Dankwa Anim-Appiah, Jin-Meng Ho
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Abstract
The invention generally provides a method of intelligent frequency hopping such as in Bluetooth and Home RF networks. The method (400) includes the acts of generating windows (410), sampling an original frequency (430), determining if the original frequency is of a desired frequency type (440), using the original frequency when the original frequency is the desired frequency type (460), and mapping the frequency to the desired frequency type when the original frequency is not the desired frequency type (450). Accordingly, the method increases the reliability and throughput of wireless networks.
Claims19
In a frequency band, a method of intelligent frequency hopping, comprising:
- generating a good window and a bad window;
- determining a desired frequency type based on a frequency sequence;
- using an original hopping sequence to sample an original frequency in the frequency band;
- selecting the original frequency as an operating frequency when the original frequency is the desired frequency type;
- mapping the original frequency to the desired frequency type when the original frequency is not the desired frequency type, wherein generating comprises:
- determining a number of good channels and a number of bad channels in the frequency band;
- defining a ratio of good channels to bad channels as a ratio, Q (the ratio);
- and
- defining a good window size as the number of good channels, defining a bad window size as the number of bad channels, such that a ratio of the good window size to the bad window size is Q.
In a frequency band, a method of intelligent frequency hopping, comprising:
- identifying each channel in the frequency band as a good channel or a bad channel;
- determining a ratio of a number of the good channels to a number of the bad channels (the ratio);
- assigning a first size to a good window, and a second size to a bad window, such that the ratio of the size of the good window to the size of the bad window is the same as the ratio;
- assigning the good channels to the good window and the bad channels to the bad window;
- determining a desired frequency type based on a frequency sequence;
- using an original hopping sequence to sample an original frequency in the frequency band;
- and
- selecting the original frequency as an operating frequency when the original frequency is the desired frequency type.
In a frequency band, a method of intelligent frequency hopping, comprising:
- in the frequency band, determining a ratio of a number of good channels to a number of bad channels (the Q ratio);
- assigning a first size to a good window, and a second size to a bad window, such that a ratio of the size of the good window to the size of the bad window is the same as the Q ratio;
- defining a frequency sequence as a number of channels of a first type, followed by a number of channels of a second type, such that a ratio of the number of channels of the first type to a number of channels of the second type is the Q ratio;
- using an original hopping sequence to sample an original frequency in the frequency band;
- selecting the original frequency as an operating frequency when the original frequency is a desired frequency type;
- and
- using a frequency from either the good window or the bad window as an operating frequency when the original frequency is not the desired frequency type.
Dependencies are inferred from the claim text.