WIRELESS RECEIVER WITH INTERMITTENT SHUT-OFF OF RF CIRCUITS
First Claim
1. A terminal for use in a wireless network, the terminal comprising:
- a radio frequency (RF) receiver, which is configured to receive and downconvert a RF signal so as to generate an output signal, the RF signal comprising downlink frames, each downlink frame comprising at least an allocation zone followed by a data zone, the allocation zone containing an indication of a time allocation in the data zone during which downlink data will be transmitted to the terminal;
an analog/digital (A/D) converter, which is coupled to convert the output signal into a stream of digital samples; and
a digital processing circuit, which is coupled to process the digital samples so as to identify the time allocation, responsively to the indication in the allocation zone, and to recover the downlink data transmitted during the identified time allocation, while shutting down the RF receiver during at least one interval during the downlink frame that is outside the identified time allocation.
6 Assignments
0 Petitions
Accused Products
Abstract
A terminal (24) for use in a wireless network (20) includes a radio frequency (RF) receiver (30), which is configured to receive and downconvert a RF signal. The RF signal includes downlink frames, each downlink frame including at least an allocation zone followed by a data zone. The allocation zone contains an indication of a time allocation in the data zone during which downlink data will be transmitted to the terminal. An analog/digital (A/D) converter (36) converts the output signal from the RF receiver into a stream of digital samples. A digital processing circuit (40, 52, 54, 56) processes the digital samples so as to identify the time allocation and to recover the downlink data transmitted during the identified time allocation, while shutting down the RF receiver during at least one interval during the downlink frame that is outside the identified time allocation.
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Citations
34 Claims
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1. A terminal for use in a wireless network, the terminal comprising:
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a radio frequency (RF) receiver, which is configured to receive and downconvert a RF signal so as to generate an output signal, the RF signal comprising downlink frames, each downlink frame comprising at least an allocation zone followed by a data zone, the allocation zone containing an indication of a time allocation in the data zone during which downlink data will be transmitted to the terminal; an analog/digital (A/D) converter, which is coupled to convert the output signal into a stream of digital samples; and a digital processing circuit, which is coupled to process the digital samples so as to identify the time allocation, responsively to the indication in the allocation zone, and to recover the downlink data transmitted during the identified time allocation, while shutting down the RF receiver during at least one interval during the downlink frame that is outside the identified time allocation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for communication, comprising:
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receiving and downconverting a radio frequency (RF) signal using a RF receiver of a wireless terminal, so as to generate an output signal, the RF signal comprising downlink frames, each downlink frame comprising at least an allocation zone followed by a data zone, the allocation zone containing an indication of a time allocation in the data zone during which downlink data will be transmitted to the wireless terminal; converting the output signal into a stream of digital samples; and processing the digital samples so as to identify the time allocation, responsively to the indication in the allocation zone, and to recover the downlink data transmitted during the identified time allocation, while shutting down the RF receiver during at least one interval during the downlink frame that is outside the identified time allocation. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification