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US 2015/0146823 A1Published application
Wireless Network Receiver
AssigneeTexas Instruments Incorporated
InventorsWenxun Qiu, Timothy Mark Schmidl, Minghua Fu, Anuj Batra
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Abstract
A wireless network receiver includes a detection module that uses preamble data in a data frame for signal processing functions and the detection module is configured to adjust the number of preamble data bits that are used based on the power of a received signal.
Claims10
A wireless network receiver, comprising:
- a preamble detection module that uses preamble bits in a data frame for signal processing functions;
- and
- wherein the preamble detection module adjusts the number of preamble bits that are used in response to the power of a received signal;
- wherein the preamble detection module performs a plurality of signal processing functions using the preamble bits;
- wherein the number of preamble bits that are used by each signal processing function is variable based on the power of the received signal;
- and
- wherein at least one signal processing function uses a predetermined maximum number of preamble bits where the predetermined maximum number is based on limiting processor instruction cycles.
4 more elements
2-6. (canceled)
A wireless network receiver, comprising:
- a preamble detection module that uses preamble bits in a data frame for signal processing functions;
- wherein the preamble detection module adjusts the number of preamble bits that are used in response to the power of a received signal;
- and
- an automatic amplifier gain control module that measures the power of the received signal and sends power information to the preamble detection module;
- wherein the power information specifies a number of amplifier gain adjustment steps that will be required in response to the power of the received signal;
- and
- wherein the preamble detection module uses a first number of preamble bits for signal processing when the required number of gain adjustment steps is zero, and where the detection module uses a second number of preamble bits for signal processing when the required number of gain adjustment steps is one.
4 more elements
9-15. (canceled)
A method, comprising:
- receiving, by a wireless network receiver, a signal;
- using, by a preamble detector module in the wireless network receiver, preamble bits in the signal for signal processing;
- adapting, by the preamble detector module, the number of preamble bits being used, in response to the power of the signal;
- determining, by an amplifier module, the number of amplifier gain adjustment steps needed, based on the power of the signal;
- sending, by the amplifier module, information indicating the number of amplifier gain adjustment steps needed to the preamble detector module;
- and
- the step of adapting further comprising:
- using, by the preamble detector module, a first number of preamble bits for signal processing when the number of amplifier gain adjustment steps is zero;
- and
- using, by the preamble detector module, a second number of preamble bits for signal processing when the number of amplifier gain adjustment steps is one.
7 more elements
A method, comprising:
- receiving, by a wireless network receiver, a signal;
- using, by a preamble detector module in the wireless network receiver, preamble bits in the signal for signal processing;
- adapting, by the preamble detector module, the number of preamble bits being used, in response to the power of the signal;
- determining, by an amplifier module, the number of amplifier gain adjustment steps needed, based on the power of the signal;
- sending, by the amplifier module, information indicating the number of amplifier gain adjustment steps needed to the preamble detector module;
- and
- the step of adapting further comprising:
- using, by the preamble detector module, a first number of preamble bits for signal processing when the number of amplifier gain adjustment steps is below a predetermined threshold;
- and
- using, by the preamble detector module, a second number of preamble bits for signal processing when the number of amplifier gain adjustment steps is greater than the predetermined threshold.
7 more elements
A method, comprising:
- recording, by a wireless network receiver, a history of the power of received signals;
- receiving, by the wireless network receiver, a signal;
- using, by a preamble detector module in the network receiver, preamble bits in the signal for signal processing;
- and
- adapting, by the preamble detector module, the number of preamble bits being used, based on the history of the power of received signals;
- and
- where the history of the power of received signals comprises a history of the number of amplifier gain adjustment steps required by previously received signals.
4 more elements
(canceled)
Dependencies are inferred from the claim text.