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ts_125331v120300p

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3GPP TS 25.331 version 12.3.0 Release 12<br />

901<br />

ETSI TS 125 331 V12.3.0 (2014-10)<br />

Information Element/Group<br />

name<br />

Need Multi Type and<br />

reference<br />

Semantics<br />

description<br />

16383) number to be<br />

used by the UE<br />

compressor.<br />

Default value is<br />

15.<br />

>>>Downlink OP Indicates the<br />

necessary<br />

information<br />

elemen<strong>ts</strong> for<br />

>>>>Max_CID MD Integer (1..<br />

16383)<br />

>>>>Reverse_Decompression_<br />

Depth<br />

Note 1:<br />

MD<br />

Integer<br />

(0..65535)<br />

Downlink.<br />

Highest context ID<br />

number to be<br />

used by the UE<br />

decompressor.<br />

Default value is<br />

15.<br />

Determines<br />

whether reverse<br />

decompression<br />

should be used or<br />

not and the<br />

maximum number<br />

of packe<strong>ts</strong> that<br />

can be reverse<br />

decompressed by<br />

the UE<br />

decompressor.<br />

Default value is 0<br />

(reverse<br />

decompression<br />

shall not be used).<br />

If several occurrences of the same algorithm type are included in the same IE “header<br />

compression information”, the UE behaviour is unspecified.<br />

Versio<br />

n<br />

REL-4<br />

REL-4<br />

REL-4<br />

LosslessCriteria<br />

Lossless<br />

Condition<br />

Explanation<br />

This IE is mandatory present if the IE "RLC mode" is<br />

"Acknowledged", the IE "In-sequence delivery " is<br />

TRUE and the IE "SDU Discard Mode" is "No discard"<br />

and not needed otherwise.<br />

This IE is mandatory present if the IE "Support for<br />

lossless SRNS relocation or for lossless RLC PDU<br />

size change" Is TRUE, otherwise it is not needed.<br />

10.3.4.2a<br />

PDCP ROHC target mode<br />

Information Element/Group<br />

name<br />

Need Multi Type and<br />

Reference<br />

Target Mode MP Enumerated<br />

(O-mode, R-<br />

mode)<br />

Semantics<br />

description<br />

The UE shall only<br />

transit to the signalled<br />

mode for operation of<br />

ROHC as decribed in<br />

[36].<br />

Version<br />

REL-5<br />

ETSI

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