US 12,219,605 B2
Transmission method and apparatus
Jianqin Liu, Beijing (CN); Xu Zhang, Beijing (CN); Lixia Xue, Beijing (CN); Yongxing Zhou, Beijing (CN); and Yuan Li, Bonn (DE)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on May 28, 2021, as Appl. No. 17/333,673.
Application 17/333,673 is a continuation of application No. PCT/CN2019/122221, filed on Nov. 29, 2019.
Claims priority of application No. 201811463760.0 (CN), filed on Nov. 30, 2018.
Prior Publication US 2021/0289561 A1, Sep. 16, 2021
Int. Cl. H04W 74/08 (2024.01); H04L 5/00 (2006.01); H04W 52/36 (2009.01); H04W 72/04 (2023.01); H04W 72/044 (2023.01); H04W 72/12 (2023.01); H04W 72/1268 (2023.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 5/0048 (2013.01); H04W 52/36 (2013.01); H04W 72/044 (2013.01); H04W 72/1268 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A transmission method, performed by a base station, or a chip for the base station, comprising:
receiving a random access preamble at a first transmit power from a terminal;
receiving uplink data on a physical uplink shared channel (PUSCH) at a second transmit power from the terminal;
obtaining indication information associated with a power deviation between the first transmit power and the second transmit power, wherein the indication information is obtained based on one of following:
a mapping relationship between the indication information and a time domain resource of physical random access channel (PRACH) that carries the random access preamble; or
a mapping relationship between the indication information and a frequency domain resource of the PRACH that carries the random access preamble; or
a mapping relationship between the indication information and a time domain resource of the uplink data on the PUSCH; or
a mapping relationship between the indication information and a frequency domain resource of the uplink data on the PUSCH; or
a mapping relationship between the indication information and an additional demodulation reference signal sequence of the uplink data on the PUSCH;
determining the power deviation between the first transmit power and the second transmit power by using indication information;
demodulating the uplink data on the PUSCH by using the random access preamble; and
sending a random access response or a contention resolution message to the terminal.