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US 2018/0019902 A1Published application
Frame format and design of wake-up frame for a wake-up receiver
AssigneeHuawei Technologies Co., Ltd.
InventorsJung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
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Abstract
Methods and systems for providing a low-rate data signal. Received input data bits are Manchester modulated onto successive multicarrier symbols in the time domain. Each multicarrier symbol includes orthogonal sub-carrier and a null sub-carrier. A stored waveform can be retrieved to code the sub-carriers. The successive multicarrier symbols are up-converted to a carrier frequency to provide the low-rate data signal, and the low-rate data signal is transmitted.
Claims13
A method of providing a low-rate data signal, the method comprising:
- receiving input data bits;
- retrieving a stored waveform for coding orthogonal sub-carriers of a multicarrier symbol, the multicarrier symbol including a null sub-carrier;
- Manchester modulating the input data bits onto successive multicarrier symbols in time domain;
- up-converting the successive multicarrier symbols to a carrier frequency to provide the low-rate data signal;
- and
- transmitting the low-rate data signal over a wireless channel.
3 more elements
A method at a receiver, the method comprising:
- receiving a low-rate data signal transmitted over a wireless channel;
- down-converting the low-rate data signal to recover successive multicarrier symbols, each multicarrier symbol comprising a set of orthogonal sub-carriers and a null sub-carrier;
- and
- extracting data bits from each of the multicarrier symbols to recover the data bits of the low-rate data.
1 more element
Dependencies are inferred from the claim text.