4.13 E-DCH related procedures
25.2243GPPPhysical layer procedures (TDD)TS
4.13.1 ACK/NACK detection
The physical layer in the UE shall detect ACK or NACK contained within the E-HICH. Which E-HICH is associated with the corresponding E-DCH transmission is defined in [8].
4.13.2 Serving and neighbour cell pathloss metric derivation
The UE shall be capable of measuring the P-CCPCH RSCP of the serving cell and of intra-frequency neighbour cells in accordance with [11]. The P-CCPCH transmit power (Pref) of the serving cell and of each intra-frequency neighbour cell in the monitored neighbour cell list shall be signalled by higher layers to the UE in order that the UE may estimate the mean pathloss to the serving cell (Lserv) and to each of the N neighbour cells in the monitored neighbour cell list (L1, L2, … LN).
Higher layers shall configure the UE to use SNPL reporting type 1 or SNPL reporting type 2. In accordance with the SNPL reporting type, the UE shall be capable of forming a metric corresponding to:
{for SNPL reporting type 1}
{for SNPL reporting type 2}
The metric shall be converted into a logarithmic (dB) value Q and shall be mapped to a Serving and Neighbour Cell Pathloss (SNPL) index according to table 1b. The SNPL index is supplied to and used by higher layers (see [18]).
Table 1b: SNPL mapping
|
Q = 10*log10() |
SNPL index |
|
Q <-6 |
0 |
|
-6 ≤ Q < -5 |
1 |
|
-5 ≤ Q < -4 |
2 |
|
-4 ≤ Q < -3 |
3 |
|
-3 ≤ Q < -2 |
4 |
|
-2 ≤ Q < -1 |
5 |
|
-1 ≤ Q < -0 |
6 |
|
0 ≤ Q < 1 |
7 |
|
1 ≤ Q < 2 |
8 |
|
2 ≤ Q < 3 |
9 |
|
3 ≤ Q < 4 |
10 |
|
4 ≤ Q < 5 |
11 |
|
5 ≤ Q < 6 |
12 |
|
6 ≤ Q < 7 |
13 |
|
7 ≤ Q < 8 |
14 |
|
8 ≤ Q < 9 |
15 |
|
9 ≤ Q < 10 |
16 |
|
10 ≤ Q < 11 |
17 |
|
11 ≤ Q < 12 |
18 |
|
12 ≤ Q < 13 |
19 |
|
13 ≤ Q < 14 |
20 |
|
14 ≤ Q < 15 |
21 |
|
15 ≤ Q < 16 |
22 |
|
16 ≤ Q < 17 |
23 |
|
17 ≤ Q < 18 |
24 |
|
18 ≤ Q < 19 |
25 |
|
19 ≤ Q < 20 |
26 |
|
20 ≤ Q < 21 |
27 |
|
21 ≤ Q < 22 |
28 |
|
22 ≤ Q < 23 |
29 |
|
23 ≤ Q < 24 |
30 |
|
24 ≤ Q < 25 |
31 |
If the higher layer signalling information regarding the required P-CCPCH reference powers is not available, the UE shall return an SNPL index value of 7.
4.13.3 Channelisation code hopping procedure for E-PUCH
Channelisation code hopping may be applied to E-PUCH transmissions.
When channelisation code hopping is configured by higher layers, the allocated OVSF code (determined by the code resource related information (CRRI) on E-AGCH – see [9]) is first transformed by the physical layer into a sequence of "effective" allocated OVSF codes (one for each active timeslot of the resource allocation) before further physical layer processing is performed (see figure 5a). The mapping of the allocated code to the sequence of effective codes is a function of the allocated timeslots and of the current CFN.
Figure 5a – physical layer interpretation of OVSF code allocation in the case that channelisation code hopping is applied
The allocated OVSF code (indicated by E-AGCH) is denoted . The sequence of "effective" allocated OVSF codes is denoted , one for each allocated timeslot index value ti. nTRRI is configured by higher layers [15].
The set of nTRRI timeslots configured for E-DCH use is denoted tE-DCH (where each element of tE-DCH may assume a value between 0 and 14). The first element of tE-DCH is associated with ti = 0, the second element with ti = 1 and so on. ti = 0 therefore corresponds to the lowest numbered timeslot configured for E-DCH use and to the first element (LSB) of the timeslot resource related information bitmap [9].
A hopping index parameter hi is calculated for each timeslot of the E-DCH TTI in which the UE has been allocated as follows:
The effective allocated OVSF code for timeslot index ti is then derived from hi and the channelisation code indicated by the corresponding E-AGCH () as according to table 1c.
Table 1c: Hopping index parameter sequences
|
|
|
Hop index hi |
|||||||||||||||
|
CRRI |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
|
|
SF16 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
15 |
1 |
9 |
5 |
13 |
3 |
11 |
7 |
15 |
2 |
10 |
6 |
14 |
4 |
12 |
8 |
16 |
|
2 |
16 |
2 |
10 |
6 |
14 |
4 |
12 |
8 |
16 |
1 |
9 |
5 |
13 |
3 |
11 |
7 |
15 |
|
3 |
17 |
3 |
11 |
7 |
15 |
1 |
9 |
5 |
13 |
4 |
12 |
8 |
16 |
2 |
10 |
6 |
14 |
|
4 |
18 |
4 |
12 |
8 |
16 |
2 |
10 |
6 |
14 |
3 |
11 |
7 |
15 |
1 |
9 |
5 |
13 |
|
5 |
19 |
5 |
13 |
1 |
9 |
7 |
15 |
3 |
11 |
6 |
14 |
2 |
10 |
8 |
16 |
4 |
12 |
|
6 |
20 |
6 |
14 |
2 |
10 |
8 |
16 |
4 |
12 |
5 |
13 |
1 |
9 |
7 |
15 |
3 |
11 |
|
7 |
21 |
7 |
15 |
3 |
11 |
5 |
13 |
1 |
9 |
8 |
16 |
4 |
12 |
6 |
14 |
2 |
10 |
|
8 |
22 |
8 |
16 |
4 |
12 |
6 |
14 |
2 |
10 |
7 |
15 |
3 |
11 |
5 |
13 |
1 |
9 |
|
9 |
23 |
9 |
1 |
13 |
5 |
11 |
3 |
15 |
7 |
10 |
2 |
14 |
6 |
12 |
4 |
16 |
8 |
|
10 |
24 |
10 |
2 |
14 |
6 |
12 |
4 |
16 |
8 |
9 |
1 |
13 |
5 |
11 |
3 |
15 |
7 |
|
11 |
25 |
11 |
3 |
15 |
7 |
9 |
1 |
13 |
5 |
12 |
4 |
16 |
8 |
10 |
2 |
14 |
6 |
|
12 |
26 |
12 |
4 |
16 |
8 |
10 |
2 |
14 |
6 |
11 |
3 |
15 |
7 |
9 |
1 |
13 |
5 |
|
13 |
27 |
13 |
5 |
9 |
1 |
15 |
7 |
11 |
3 |
14 |
6 |
10 |
2 |
16 |
8 |
12 |
4 |
|
14 |
28 |
14 |
6 |
10 |
2 |
16 |
8 |
12 |
4 |
13 |
5 |
9 |
1 |
15 |
7 |
11 |
3 |
|
15 |
29 |
15 |
7 |
11 |
3 |
13 |
5 |
9 |
1 |
16 |
8 |
12 |
4 |
14 |
6 |
10 |
2 |
|
16 |
30 |
16 |
8 |
12 |
4 |
14 |
6 |
10 |
2 |
15 |
7 |
11 |
3 |
13 |
5 |
9 |
1 |
|
SF8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
7 |
1 |
5 |
3 |
7 |
2 |
6 |
4 |
8 |
1 |
5 |
3 |
7 |
2 |
6 |
4 |
8 |
|
2 |
8 |
2 |
6 |
4 |
8 |
1 |
5 |
3 |
7 |
2 |
6 |
4 |
8 |
1 |
5 |
3 |
7 |
|
3 |
9 |
3 |
7 |
1 |
5 |
4 |
8 |
2 |
6 |
3 |
7 |
1 |
5 |
4 |
8 |
2 |
6 |
|
4 |
10 |
4 |
8 |
2 |
6 |
3 |
7 |
1 |
5 |
4 |
8 |
2 |
6 |
3 |
7 |
1 |
5 |
|
5 |
11 |
5 |
1 |
7 |
3 |
6 |
2 |
8 |
4 |
5 |
1 |
7 |
3 |
6 |
2 |
8 |
4 |
|
6 |
12 |
6 |
2 |
8 |
4 |
5 |
1 |
7 |
3 |
6 |
2 |
8 |
4 |
5 |
1 |
7 |
3 |
|
7 |
13 |
7 |
3 |
5 |
1 |
8 |
4 |
6 |
2 |
7 |
3 |
5 |
1 |
8 |
4 |
6 |
2 |
|
8 |
14 |
8 |
4 |
6 |
2 |
7 |
3 |
5 |
1 |
8 |
4 |
6 |
2 |
7 |
3 |
5 |
1 |
|
SF4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
3 |
1 |
3 |
2 |
4 |
1 |
3 |
2 |
4 |
1 |
3 |
2 |
4 |
1 |
3 |
2 |
4 |
|
2 |
4 |
2 |
4 |
1 |
3 |
2 |
4 |
1 |
3 |
2 |
4 |
1 |
3 |
2 |
4 |
1 |
3 |
|
3 |
5 |
3 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
|
4 |
6 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
1 |
4 |
2 |
3 |
1 |
|
SF2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
1 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
|
2 |
2 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
|
SF1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
0 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
For all subsequent operations, the physical layer shall assume the allocated E-PUCH physical resources to be described by the effective allocated code derived for that timeslot.