Systems and methods for uplink signaling

    公开(公告)号:US11683121B2

    公开(公告)日:2023-06-20

    申请号:US17199893

    申请日:2021-03-12

    Abstract: This disclosure relates generally to wireless communications and, more particularly, to systems and methods for uplink signaling using blind channel estimation at a base station. In one embodiment, a method performed by a communication device, includes: associating a time slot with a data packet comprising a head portion and a tail portion, wherein the head portion comprises a communication device identifier and the tail portion comprises user data associated with the head portion; spreading the head portion into a first predetermined transmission format; spreading the tail portion into a second predetermined transmission format; and transmitting the spreaded head portion with the spreaded tail portion to a communication node, wherein the spreaded head portion comprises information to be used by the communication node for channel estimation and for decoding the tail portion to retrieve the user data.

    Method and apparatus for processing modulation symbol

    公开(公告)号:US10958497B2

    公开(公告)日:2021-03-23

    申请号:US16324416

    申请日:2016-10-31

    Abstract: The present invention relates to a method and apparatus for processing a modulation symbol. The processing method includes: a transmitter obtaining a transmission power ratio αj, wherein in the transmission power ratio αj∈{α0, α1, α2}, j is a natural number, and α0, α1 and α2 are all positive numbers; and the transmitter modulating a first group of bit sequences b0(i), b0(i+1) and a second group of bit sequences b1(i), b1(i+1), . . . , b1(i+n) according to the transmission power ratio αj so as to obtain a modulation symbol, wherein i is a natural number, and n∈{1, 3, 5}. The present invention solves the problem in the relevant art that an uncertain number of transmission power ratios affects the performance of a system and increases the design complexity of signaling, thereby reducing signaling overheads and improving system stability and demodulation performance.

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