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LTE: How often UE transmit SRS ?

+3 votes
LTE: How often UE transmit SRS ?
posted Apr 2, 2014 by Karan Joglekar

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1 Answer

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eNB sends a 10 bit signaling parameter srs-ConfigIndex in SIB2, RRC Connection Setup & RRC Connection Reconfiguration. UE can transmit SRS every two subframes at the most and every 32 frame (320 subframe) at the least. srs-ConfigIndex indicates the periodicity of SRS transmission which can be (2,5,10,20,40,80,160,320 ms).
SRS is transmitted at the last symbol of UL slot with full system band area.

answer Apr 2, 2014 by Chandra Javalkar
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