US Patent No. 10,142,985

OPPORTUNISTIC SECONDARY CHANNEL ACCESS


Patent No. 10,142,985
Issue Date November 27, 2018
Title Opportunistic Secondary Channel Access
Inventorship Chiu Ngok E. Wong, San Jose, CA (US)
Joonsuk Kim, Saratoga, CA (US)
Christiaan A. Hartman, San Jose, CA (US)
Guoqing Li, Cupertino, CA (US)
Su Khiong Yong, Palo Alto, CA (US)
Yong Liu, Campbell, CA (US)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,142,985

1. A mobile device, comprising:a radio configured to perform wireless communication within a wireless network;
at least one processor coupled to the radio, wherein the at least one processor is configured to cause the mobile device to:
detect, via the radio, a first transmission occupying a first frequency band within an operating bandwidth of the wireless network, wherein the first transmission is transmitted by a remote wireless device, the first transmission occurring during a time window defined for transmission by the remote wireless device, wherein the end of the time window is scheduled to occur later than a scheduled end time of the first transmission;
in response to a determination that the first transmission does not occupy a second, different frequency band within the operating bandwidth of the wireless network, transmit, via the radio, a second transmission occupying the second frequency band concurrent with the first transmission; and
set a duration of the second transmission such that the second transmission will terminate not later than the scheduled end of the time window.