Patent ID: 9125205
Filing Date: 2015-09-01
Classification: H04L,H04W

Abstract:
1. A method for determining the transmission bandwidth of an uplink sounding reference signal, comprising: determining whether a sounding reference signal (SRS) is transmitted with an uplink pilot time slot (UpPTS) if the SRS is transmitted with a largest bandwidth level; transmitting the SRS with a non-extensive SRS bandwidth if the SRS is determined to be transmitted with the UpPTS and a user equipment (UE) reaches a power limit, the SRS bandwidth including cell-level SRS bandwidth configurations, the SRS bandwidth being obtained by the UE from preliminary broadcast notification of cells, wherein the non-extensive SRS bandwidth is determined by any one of tables, Table 1 to Table 4 comprising: wherein N detecting a signal-to-noise (SNR) ratio in the SRS bandwidth; and maintaining the SNR ratio as detected in the SRS bandwidth, thereby permitting the UE to detect channel information more accurately, wherein the largest bandwidth level includes an indication of the largest SRS bandwidth level received from a network side before transmitting the SRS with the uplink pilot time slot each time, or a stored indication of the largest bandwidth level indicating the largest SRS bandwidth level received from the network side.