US2016294531A1

5G,4G

Title

DETERMINISTIC UE BEHAVIOUR FOR CSI/SRS REPORTING DURING DRX

Application Number:

US201314777721

Publication Date:

06-10-2016

Current Assignee:

PANASONIC CORP , SUN PATENT TRUST

Family ID:

47915502

Application Date:

04-12-2013

Publication Country:

US

View on Espacenet

Priority Date:

20-03-2013

Declaring Company:

PANASONIC CORP , SUN PATENT TRUST

Abstract  Abstract

The invention relates to a method for transmitting a periodic channel quality report (CSI) and/or a sounding reference symbol (SRS) from a UE to an e Node B. To avoid double decoding at the e Node B in transient phases a deterministic behavior of the UE is defined by the invention according to which the e Node B can unambiguously determine whether the UE will transmit the CSI/SRS or not. According to one embodiment the UL grants and/or DL assignments received until and including subframe N?4 only are considered; UL grants and/or DL assignments received by the UE after subframe N?4 are discarded for the determination. Additionally DRX-related timers at subframe N?4 are considered for the determination. In a second embodiment DRX MAC control elements from the e Node B instructing the UE to enter DRX i.e. become Non-Active are only considered for the determination if they are received before subframe N?4 i.e. until and including subframe N?(4+k).

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