US Patent No. 10,925,091

LISTEN-BEFORE-TALK (LBT) WITH NEW RADIO-SPECTRUM SHARING (NR-SS) DISCOVERY SIGNAL TRANSMISSION


Patent No. 10,925,091
Issue Date February 16, 2021
Title Listen-before-talk (lbt) With New Radio-spectrum Sharing (nr-ss) Discovery Signal Transmission
Inventorship Xiaoxia Zhang, San Diego, CA (US)
Aleksandar Damnjanovic, Del Mar, CA (US)
Jing Sun, San Diego, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,925,091

1. A method of wireless communication, comprising:sensing, by a wireless communication device, a channel in a spatial domain based on a plurality of expected beam transmission directions, wherein the wireless communication device is associated with a first network operating entity, and wherein the channel is shared by a plurality of network operating entities including the first network operating entity;
transmitting, after the sensing, by the wireless communication device, a spatial-specific channel reservation signal in one or more of the plurality of expected beam transmission directions based on the sensing, wherein the transmitting the spatial-specific channel reservation signal comprises:
transmitting, by the wireless commnication device, a first spatial-specific channel reservation signal in a first subset of the plurality of expected beam transmission directions; and
transmitting, by the wireless communication device, a second spatial-specific channel reservation signal in a second subset of the plurality of expected beam transmission directions; and
transmitting, after the sensing, by the wireless communication device, a plurality of discovery signals in the one or more of the plurality of expected beam transmission directions during a discovery period to facilitate synchronization in the channel based on the sensing.