US 11,683,121 B2
Systems and methods for uplink signaling
Jianqiang Dai, Guangdong (CN); Zhifeng Yuan, Guangdong (CN); Weimin Li, Guangdong (CN); Yuzhou Hu, Guangdong (CN); and Hong Tang, Guangdong (CN)
Assigned to ZTE CORPORATION, Guangdong (CN)
Filed by ZTE CORPORATION, Guangdong (CN)
Filed on Mar. 12, 2021, as Appl. No. 17/199,893.
Application 17/199,893 is a continuation of application No. PCT/CN2018/105446, filed on Sep. 13, 2018.
Prior Publication US 2021/0203457 A1, Jul. 1, 2021
Int. Cl. H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04W 72/21 (2023.01); H04W 72/0446 (2023.01)
CPC H04L 1/0041 (2013.01) [H04L 5/005 (2013.01); H04L 5/0044 (2013.01); H04L 25/0238 (2013.01); H04L 27/2602 (2013.01); H04W 72/21 (2023.01); H04L 27/2636 (2013.01); H04W 72/0446 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method performed by a communication device, comprising:
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;
encoding, modulating, and spreading the tail portion in parallel with the head portion, wherein spreading the tail portion in parallel with the head portion comprises:
spreading the head portion into a first predetermined transmission format;
spreading the tail portion into a second predetermined transmission format; and
transmitting the spread head portion with the spread tail portion to a communication node, wherein the spread 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, wherein the head portion comprises a first bit sequence, and the tail portion comprises a second bit sequence, wherein:
a first mean square cross-correlation among the first bit sequence and a first plurality of bit sequences is lower than a second mean square cross-correlation among the second bit sequence and a second plurality of bit sequences, wherein each of the first plurality of bit sequences is associated with a respective head portion in each of a first plurality of communication devices, and each of the second plurality of bit sequences is associated with a respective tail portion in each of the first plurality of communication devices, and
each of the first plurality of communication devices transmits the respective head portion and the respective tail portion to the communication node.