Synchronization of time-frequency codes
First Claim
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1. A method in a wireless communications device, comprising:
- (a) identifying a frequency hopping pattern associated with a remote short-range wireless communications network;
(b) based on the identified frequency hopping pattern, selecting a frequency hopping pattern for communications in a local short-range wireless communications network; and
(c) based on the identified frequency hopping pattern, selecting a timing for the selected frequency hopping pattern.
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Abstract
A frequency hopping pattern associated with a remote short-range wireless communications network is identified. Based on the identified frequency hopping pattern, a frequency hopping pattern for communications in a local short-range wireless communications network is selected. In addition, a timing for the selected frequency hopping pattern is selected based on the identified frequency hopping pattern timing. One or more symbols, such as OFDM symbols, may be transmitted according to the selected frequency hopping pattern and the selected timing.
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Citations
25 Claims
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1. A method in a wireless communications device, comprising:
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(a) identifying a frequency hopping pattern associated with a remote short-range wireless communications network;
(b) based on the identified frequency hopping pattern, selecting a frequency hopping pattern for communications in a local short-range wireless communications network; and
(c) based on the identified frequency hopping pattern, selecting a timing for the selected frequency hopping pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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means for identifying a frequency hopping pattern associated with a remote short-range wireless communications network;
means for selecting a frequency hopping pattern for communications in a local short-range wireless communications network based on the identified frequency hopping pattern; and
means for selecting a timing for the selected frequency hopping pattern based on the identified frequency hopping pattern. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless communications device, comprising:
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a carrier sensing module configured to monitor transmissions in one or more frequency bands;
a timing controller configured to select a frequency hopping pattern for a local short-range wireless network based on a frequency hopping pattern of a remote short-range wireless communications network detected by the carrier sensing module, and to control one or more transmission times according to the selected frequency hopping pattern based on energy levels detected in a frequency band by the carrier sensing module; and
a transceiver configured to transmit data at the one or more data transmission times according to the selected frequency hopping pattern. - View Dependent Claims (21, 22)
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23. A wireless communications device, comprising:
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a carrier sensing module configured to monitor transmissions in one or more frequency bands;
a timing controller configured to control one or more transmission times according to a frequency hopping pattern based on energy levels detected in a frequency band by the carrier sensing module; and
a transceiver configured to receive the frequency hopping pattern from a device in the local short-range wireless communications network, and to transmit data at the one or more data transmission times according to the frequency hopping pattern. - View Dependent Claims (24)
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25. A method in a wireless communications device, comprising:
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monitoring transmissions in one or more frequency bands of a plurality of channels;
based on the monitored transmissions, determining a time frequency code (TFC) of a remote short-range wireless communications network;
selecting a TFC for use in a local short-range wireless communications network based on the TFC of the remote wireless communications network;
distributing information regarding the selected TFC to one or more remote devices within the local short-range wireless communications network;
determining whether the wireless communications device needs to transmit data within the local short-range wireless communications network; and
monitoring one or more of the frequency bands to designate a transmission timing for the data.
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Specification