US 12,256,229 B2
Method and devices for signaling transmission in unlicensed band
Lei Jiang, Beijing (CN); Hongmei Liu, Beijing (CN); Gang Wang, Beijing (CN); Chuangxin Jiang, Beijing (CN); and Zhennian Sun, Beijing (CN)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Jun. 10, 2020, as Appl. No. 16/898,094.
Application 16/898,094 is a continuation of application No. 15/104,375, granted, now 10,945,134, previously published as PCT/CN2014/087797, filed on Sep. 29, 2014.
Prior Publication US 2020/0305005 A1, Sep. 24, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 16/14 (2009.01); H04W 72/23 (2023.01); H04W 74/0808 (2024.01)
CPC H04W 16/14 (2013.01) [H04W 72/23 (2023.01); H04W 74/0808 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method in a wireless communication network performed by a user equipment (UE), the method comprising:
receiving configuration information from a base station via a second spectrum, wherein,
the second spectrum is a licensed spectrum, and
the configuration information comprises a first parameter indicating a periodicity, in milliseconds (ms), of a first signal and
a second parameter indicating an offset, for the first signal, given in a number of subframes; and
receiving the first signal on a first spectrum, wherein
a channel on the first spectrum is sensed to be idle by the base station before each transmission of the first signal, and
the first spectrum is an unlicensed spectrum,
wherein the channel on the first spectrum is sensed to be idle by:
sensing whether the channel is idle in a next time duration,
if the channel is not sensed to be idle in a time duration after transmission of the first signal is ready, or
if the channel is not sensed to be idle in any of time durations within a time period immediately before transmission of the first signal.