Patent ID: 9252934
Filing Date: 2016-02-02
CPC Classification: H04L,H04W

Claim Text:
1. A method comprising: receiving sounding reference signal (SRS) configuration data transmitted from a base station, wherein the SRS configuration data is used for SRS measurements by a location measurement unit (LMU) for network-based positioning, wherein the SRS configuration data includes cell-specific SRS bandwidth configuration and UE-specific SRS bandwidth configuration, and wherein the SRS configuration data further includes a total number of SRS transmissions for the positioning; receiving a sounding reference signal transmitted from a user equipment, wherein the sounding reference signal has an SRS sequence, and wherein the SRS transmission is scheduled in specific uplink subframes for reducing SRS dropping based on predefined rules; detecting an SRS dropping instance using cross-correlation between the SRS sequence and the received signal, wherein the SRS dropping instance is detected when a maximum value of the cross-correlation is below a threshold value; and performing timing measurements for the received reference signal using the SRS configuration data.