US Patent No. 10,798,746

COMMUNICATION METHOD USED FOR RANDOM ACCESS, TERMINAL, AND BASE STATION


Patent No. 10,798,746
Issue Date October 06, 2020
Title Communication Method Used For Random Access, Terminal, And Base Station
Inventorship Chunhua You, Shenzhen (CN)
Qufang Huang, Shenzhen (CN)
Yi Guo, Shenzhen (CN)
Assignee HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)

Claim of US Patent No. 10,798,746

1. A communication method used for random access, wherein carrier aggregation is performed on a licensed assisted access (LAA) cell and a primary cell of a base station, the method is used by a terminal to perform non-contention-based random access based on the LAA cell, the method comprising:receiving, by a terminal, random access preamble information sent by a base station in a serving cell of the terminal, wherein the serving cell comprises the LAA cell and the primary cell;
sending, in the LAA cell of the base station by the terminal, a first random access preamble to the base station based on the random access preamble information, wherein the first random access preamble is different from a second random access preamble in the primary cell; and
receiving, by the terminal, a random access response sent by the base station in the primary cell, wherein the random access response comprises an uplink asynchronous hybrid automatic repeat request (HARQ) process identifier, and the uplink asynchronous HARQ process identifier is used by the terminal to send uplink data to the base station.