6.3 Channelisation Code Specific Multiplier

25.2233GPPRelease 17Spreading and modulation (TDD)TS

Associated with each channelisation code is a multiplier taking values from the set , where is a permutation of the integer set {0, …, Q_k -1} and Q_k denotes the spreading factor. The multiplier is applied to the data sequence modulating each channelisation code. The values of the multiplier for each channelisation code are given in the table below:

k
1	1	1	-j	1	-1	-j
2		+j	1	+j	-j	-1
3			+j	+j	1	-1
4			-1	-1	1	1
5				-j	+j	-1
6				-1	-1	-j
7				-j	-1	j
8				1	1	1
9					-j	-1
10					+j	1
11					1	1
12					+j	-j
13					-j	j
14					-j	-1
15					+j	j
16					-1	-j
17						-j
18						-j
19						1
20						j
21						-1
22						-j
23						-j
24						-j
25						-1
26						-1
27						j
28						-1
29						-j
30						1
31						-1
32						-1

NOTE: the multiplier may only be applied in the 7.68Mcps TDD option.

If the UE autonomously changes the SF, as described in [7], it shall always use the multiplier associated with the channelisation code allocated by higher layers.