Qualcomm Incorporated

Jun Deng

Tom Chin

Jian Li

Peng Wu

Chaofeng Hui

Fojian Zhang

Tim Liou

Hao Zhang

Tianya Lin

Xiaochen Chen

Mingyan Wang

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may avoid frequent handover in small cells by triggering handover to a macro cell. The UE may determine that the UE performs a number of handovers within a time period. The UE may determine to trigger a handover to the macro cell. The UE may identify the macro cell based on measuring the macro cell during multiple handovers. The UE may determine to refrain from indicating signal measurements of small cells in a measurement report. Accordingly, a measurement report may include a signal measurement of the macro cell and omit the signal measurements of the small cells. The UE may transmit the measurement report to the small cell acting as a serving cell for the UE. Based the measurement report, the UE may receive a message initiating a handover procedure with the macro cell.

Techniques for avoiding frequent handover in small cells

A user equipment (UE) determines a tune-away gap in which the UE performs a tune-away from a first radio access technology (RAT) to a second RAT on a single radio frequency (RF) chain, and transmits an intended-false buffer status report (BSR) to modify a duration of the determined tune-away gap. The intended-false BSR indicates an intended-false value of uplink data pending in a buffer to be transmitted on the first RAT, so that an uplink grant for uplink data transmissions on the first RAT to be received at the UE is modified.

Apparatus and method for controlling a tune-away operation

Growing community of inventors

Shanghai, China

Jun Deng