(EN) A method of performing uplink detection reference signal transmission, and a wireless transmission/reception unit are provided. The method includes receiving WTRU specific configuration of a WTRU-specific SRS subframe for performing SRS transmission; receiving a trigger from the base station subframe to transmit the SRS at a plurality of antenna ports; selecting a first subframe after the subframes within which the triggering is received and after at least four subframes within the subframes within which the triggering is received and, the first subframe being a WTRU Specific subfram; determining whether the sum of the SRS transmission power exceeds the predetermined maximum power value in at least one serving cell; In the case where the sum of the SRS transmission powers exceeds the predetermined maximum power value within the at least one serving cell, scaling the SRS transmission power proportionally to satisfy the predetermined maximum power value; transmitting the SRS in the selected first subframe according to the scaled SRS transmission power. Methods for handling collisions between SRS and physical channels are presented.
(ZH) 执行上行链路探测参考信号传输的方法及无线发射/接收单元。该方法包括：接收用于执行SRS传输的WTRU特定SRS子帧的WTRU特定配置；从基站子帧中接收触发，以便在多个天线端口传送SRS；选择第一子帧，该第一子帧位于在其内接收所述触发的子帧之后且位于该在其内接收所述触发的子帧之后至少4个子帧之后，该第一子帧为WTRU特定子帧；确定在至少一个服务小区内，SRS传输功率之和是否超过预定最大功率值；在所述至少一个服务小区内，所述SRS传输功率之和超过预定最大功率值的情况下，等比例地缩放所述SRS传输功率以满足所述预定最大功率值；以及在所述选择的第一子帧中按照所述缩放的SRS传输功率传送所述SRS。还给出了用于处理SRS与物理信道之间的冲突的方法。