TRANSMIT NODE DETECTION BY A RECEIVER IN A SHARED ACCESS LTE ENVIRONMENT

摘要

Presented herein are mechanisms to reduce collisions in deployments with Wi-Fi and Shared Access LTE (SAC-LTE) equipment as well SAC-LTE equipment from multiple operators. The mechanisms enhance the baseline energy detection mechanism by incorporating methods to decode cross-technology physical layer elements and media access control (MAC) layer elements in the Wi-Fi system to elements in the SAC-LTE system. The methods described improve the detection potential for transmitters, thereby reducing chances of cross-technology collisions.

主权项

1. A method comprising:
at a first wireless device, obtaining data to be wirelessly transmitted in a transmission burst according to a first format over a shared spectrum; detecting a wireless preamble to a wireless transmission in a second format on the shared spectrum, the wireless transmission being transmitted from a second wireless device; decoding the wireless preamble; determining a minimum time to defer access to the shared spectrum based on the decoded wireless preamble; and transmitting the data in the transmission burst over the shared spectrum after deferring for at least the determined minimum amount of time so as to minimize interference between the transmission burst in the first format and the wireless transmission in the second format from the second wireless device.