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US 11,108,897 B2Granted
Method and apparatus for encoding and decoding packet
AssigneeSamsung Electronics Co., Ltd.
InventorsChang Soon Park, Young Jun Hong, Youngsoo Kim, Hyosun Hwang
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Abstract
A method of a transmitter transmitting a packet encoded by applying a coding scheme based on a wireless channel environment to a receiver, and a method of the receiver detecting the coding scheme applied to the encoded packet and decoding the packet, in which the transmitter applies a spreading factor corresponding to the coding scheme to a preamble of the packet, and the receiver decodes the packet by detecting the coding scheme using the preamble.
Claims4
An electronic device, comprising:
- a processor configured to:
- generate a preamble;
- spread a SFD (start frame delimiter) based on a bit-to-sequence mapping using orthogonal sequences;
- spread a PHR (physical layer Header) based on the bit-to-sequence mapping, wherein, in the spreading of the PHR, a first bit in the PHR is mapped to a first ternary sequence and a second bit in the PHR is mapped to a second ternary sequence, the first and second ternary sequences being orthogonal;
- generate a sequence of chips based on a PSDU (physical service data unit);
- and
- concatenate the generated preamble, the spread SFD, the spread PHR, and the generated sequence, and
- transmit, to a receiver, a signal generated based on a result of the concatenating,
- wherein the generated preamble includes a ternary base sequence of length 32 chips repeated 8 times, and
- wherein the ternary base sequence is [1 0 −1 0 0 −1 0 −1 1 0 1 0 0 −1 0 1 1 0 1 0 0 −1 0 1 −1 0 1 0 0 1 0 1].
7 more elements
Dependencies are inferred from the claim text.