US Patent No. 10,602,491

COMMUNICATION METHOD AND DEVICE ON UNLICENSED FREQUENCY BAND IN UE AND BASE STATION


Patent No. 10,602,491
Issue Date March 24, 2020
Title Communication Method And Device On Unlicensed Frequency Band In Ue And Base Station
Inventorship Xiaobo Zhang, Shanghai (CN)
Assignee SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED, Shanghai (CN)

Claim of US Patent No. 10,602,491

1. A communication method on an unlicensed frequency band in a UE, the communication method comprising:Step A: receiving a high layer signaling; wherein the high layer signaling indicates that a first carrier is scheduled by a control signaling transmitted on a second serving cell; the high layer signaling indicates that the first carrier is scheduled by a control signaling transmitted on the first carrier or a first carrier is scheduled by a control signaling transmitted on the first carrier by default;
Step B: receiving a first control signaling on a first sub frame of the first carrier; receiving a first physical layer data on the first carrier according a schedule of the first control signal and transmitting a first ACK/NACK or transmitting a first physical layer data and receiving a first ACK/NACK; and
Step C: receiving a second control signaling on a second sub frame of the second serving cell; receiving a second physical layer data on the first carrier according to a schedule of the second control signaling and transmitting a second ACK/NACK or transmitting a second physical layer data and receiving a second ACK/NACK;
wherein the first carrier is deployed on an unlicensed spectrum, the second serving cell is deployed on a licensed spectrum, the first sub frame and the second sub frame are two different sub frames in a time domain, the first ACK/NACK indicates whether the first physical layer data is accurately received, and the second ACK/NACK indicates whether the second physical layer data is accurately received.