R.5 Huffman Initializations
23.0423GPPCompression algorithm for text messaging servicesRelease 17TS
Huffman Initialization ID 0 (decimal)
Only control symbols are included in this initialization. It’s rendition is therefore independent of character set.
The Options value indicates that both character and control symbol updating are enabled.
As described is subclause 6.7.1, the tables below include initialization values for all control symbols that might occur in conjunction with the use of this Huffman Initialization. However, initialization values for control symbols that cannot occur for a particular use of this Huffman Initialization are identified as part of the Huffman initialization process and are not added to the Huffman tree as described in subclause 6.7.2.
Character Group Processing is always disabled:
The number of frequency initializations is 4.
The initial frequencies are:
Table R.1: Character Group Processing is always disabled: initial frequencies
Symbol |
Value |
Frequency |
New UCS2 Row |
266 |
1 |
Keyword |
258 |
1 |
New 8bit |
257 |
1 |
New 7bit |
256 |
1 |
Character Group Processing can not be enabled therefore:
The number of frequency initializations is 0.
Huffman Initialization ID >0 (decimal)
No other Huffman Initializations are defined and all other values are reserved.
Annex S (informative):
Change history
TSG# |
TDoc |
VERS |
NEW_VERS |
CR |
REV |
REL |
CAT |
WORKITEM |
SUBJECT |
T#4 |
3.0.0 |
New |
Creation of 3GPP 23.042 out of GSM 03.42 v.7.1.0 |
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T#6 |
TP-99237 |
3.0.0 |
3.1.0 |
001 |
R99 |
F |
TEI |
Adaptations for UMTS |
|
T#11 |
– |
3.1.0 |
4.0.0 |
– |
Rel-4 |
Upgrade to Rel-4 |
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4.0.0 |
4.0.1 |
Rel-4 |
2001-10: Replacement of erroneous R99 test vector file by correct Rel-4 one. |
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T#16 |
– |
4.0.1 |
5.0.0 |
– |
Rel-5 |
Upgrade to Rel-5 |
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T#26 |
– |
5.0.0 |
6.0.0 |
– |
Rel-6 |
Upgrade to Rel-6 |
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6.0.0 |
7.0.0 |
Rel-7 |
Upgrade to Rel-7 |
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7.0.0 |
8.0.0 |
Rel-8 |
Upgrade to Rel-8 |
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8.0.0 |
9.0.0 |
Rel-9 |
Upgrade to Rel-9 |
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9.0.0 |
10.0.0 |
Rel-10 |
Upgrade to Rel-10 |
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10.0.0 |
11.0.0 |
Rel-11 |
Upgrade to Rel-11 |
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11.0.0 |
12.0.0 |
Rel-12 |
Upgrade to Rel-12 |
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12.0.0 |
13.0.0 |
Rel-13 |
Upgrade to Rel-13 |
Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
2017-03 |
CT-75 |
– |
– |
– |
Update to Rel-14 version (MCC) |
14.0.0 |
|
2018-06 |
SA-80 |
– |
– |
– |
– |
Update to Rel-15 version (MCC) |
15.0.0 |
2020-07 |
SA-88e |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
2022-03 |
SA-95e |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |