US Patent No. 10,172,177

UE INITIATED SCELL CONNECTION ESTABLISHMENT


Patent No. 10,172,177
Issue Date January 01, 2019
Title Ue Initiated Scell Connection Establishment
Inventorship Valentin Alexandru Gheorghiu, Tokyo (JP)
Masato Kitazoe, Tokyo (JP)
Gavin Bernard Horn, La Jolla, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,172,177

1. A method for wireless communications by a wireless device, comprising:receiving selection parameters from a first cell, the selection parameters including one or more attributes;
measuring the one or more attributes of a plurality of candidate cells based at least in part on the selection parameters received from the first cell, wherein the measured attributes comprise transmission rank and at least one of reference signal receive power or reference signal receive quality;
identifying a second cell from the plurality of candidate cells based at least in part on the selection parameters and the one or more measured attributes and without additional direction from the first cell, the first cell being associated with a first base station and the second cell being associated with a second base station, and the first and the second cells being in communication with each other;
determining that an amount of uplink data in a buffer is above a threshold value;
transmitting, by the wireless device, an initial access message directly to the second cell to establish an independent connection with the second cell based at least in part on identifying the second cell from the plurality of candidate cells and determining that the amount of uplink data in the buffer is above the threshold;
receiving a response message from the second cell without direction from the first cell, wherein the response message is responsive to the initial access message; and
communicating with the first and second cells concurrently using the independent connection with the second cell that is established based at least in part on the receiving the response message from the second cell.