5.3.2 Dedicated downlink physical channels

25.2113GPPPhysical channels and mapping of transport channels onto physical channels (FDD)Release 17TS

There are five types of downlink dedicated physical channels, the Downlink Dedicated Physical Channel (downlink DPCH), the Fractional Dedicated Physical Channel (F-DPCH), the E-DCH Relative Grant Channel (E-RGCH), the E-DCH Hybrid ARQ Indicator Channel (E-HICH), and the Fractional Transmitted Precoding Indicator Channel (F-TPICH).

The F-DPCH is described in subclause 5.3.2.6.

Within one downlink DPCH, dedicated data generated at Layer 2 and above, i.e. the dedicated transport channel (DCH), is transmitted in time-multiplex with control information generated at Layer 1 (known pilot bits, TPC commands, and an optional TFCI). The downlink DPCH can thus be seen as a time multiplex of a downlink DPDCH and a downlink DPCCH, compare subclause 5.2.1.

Figure 9 shows the frame structure of the downlink DPCH. Each frame of length 10 ms is split into 15 slots, each of length Tslot = 2560 chips, corresponding to one power-control period.

Figure 9: Frame structure for downlink DPCH

The parameter k in figure 9 determines the total number of bits per downlink DPCH slot. It is related to the spreading factor SF of the physical channel as SF = 512/2k. The spreading factor may thus range from 512 down to 4.

The exact number of bits of the different downlink DPCH fields (Npilot, NTPC, NTFCI, Ndata1 and Ndata2) is given in table 11. What slot format to use is configured by higher layers and can also be reconfigured by higher layers.

There are basically two types of downlink Dedicated Physical Channels; those that include TFCI (e.g. for several simultaneous services) and those that do not include TFCI (e.g. for fixed-rate services). These types are reflected by the duplicated rows of table 11. It is the UTRAN that determines if a TFCI should be transmitted and it is mandatory for all UEs to support the use of TFCI in the downlink. The mapping of TFCI bits onto slots is described in [3].

In compressed frames, a different slot format is used compared to normal mode. There are two possible compressed slot formats that are labelled A and B. Slot format B shall be used in frames compressed by spreading factor reduction and slot format A shall be used in frames compressed by higher layer scheduling. The channel bit and symbol rates given in table 11 are the rates immediately before spreading.

Table 11: DPDCH and DPCCH fields

Slot Format #i

Channel Bit Rate (kbps)

Channel Symbol Rate (ksps)

SF

Bits/ Slot

DPDCH Bits/Slot

DPCCH

Bits/Slot

Transmitted slots per radio frame

NTr

NData1

NData2

NTPC

NTFCI

NPilot

0

15

7.5

512

10

0

4

2

0

4

15

0A

15

7.5

512

10

0

4

2

0

4

8-14

0B

30

15

256

20

0

8

4

0

8

8-14

1

15

7.5

512

10

0

2

2

2

4

15

1B

30

15

256

20

0

4

4

4

8

8-14

2

30

15

256

20

2

14

2

0

2

15

2A

30

15

256

20

2

14

2

0

2

8-14

2B

60

30

128

40

4

28

4

0

4

8-14

3

30

15

256

20

2

12

2

2

2

15

3A

30

15

256

20

2

10

2

4

2

8-14

3B

60

30

128

40

4

24

4

4

4

8-14

4

30

15

256

20

2

12

2

0

4

15

4A

30

15

256

20

2

12

2

0

4

8-14

4B

60

30

128

40

4

24

4

0

8

8-14

5

30

15

256

20

2

10

2

2

4

15

5A

30

15

256

20

2

8

2

4

4

8-14

5B

60

30

128

40

4

20

4

4

8

8-14

6

30

15

256

20

2

8

2

0

8

15

6A

30

15

256

20

2

8

2

0

8

8-14

6B

60

30

128

40

4

16

4

0

16

8-14

7

30

15

256

20

2

6

2

2

8

15

7A

30

15

256

20

2

4

2

4

8

8-14

7B

60

30

128

40

4

12

4

4

16

8-14

8

60

30

128

40

6

28

2

0

4

15

8A

60

30

128

40

6

28

2

0

4

8-14

8B

120

60

64

80

12

56

4

0

8

8-14

9

60

30

128

40

6

26

2

2

4

15

9A

60

30

128

40

6

24

2

4

4

8-14

9B

120

60

64

80

12

52

4

4

8

8-14

10

60

30

128

40

6

24

2

0

8

15

10A

60

30

128

40

6

24

2

0

8

8-14

10B

120

60

64

80

12

48

4

0

16

8-14

11

60

30

128

40

6

22

2

2

8

15

11A

60

30

128

40

6

20

2

4

8

8-14

11B

120

60

64

80

12

44

4

4

16

8-14

12

120

60

64

80

12

48

4

8*

8

15

12A

120

60

64

80

12

40

4

16*

8

8-14

12B

240

120

32

160

24

96

8

16*

16

8-14

13

240

120

32

160

28

112

4

8*

8

15

13A

240

120

32

160

28

104

4

16*

8

8-14

13B

480

240

16

320

56

224

8

16*

16

8-14

14

480

240

16

320

56

232

8

8*

16

15

14A

480

240

16

320

56

224

8

16*

16

8-14

14B

960

480

8

640

112

464

16

16*

32

8-14

15

960

480

8

640

120

488

8

8*

16

15

15A

960

480

8

640

120

480

8

16*

16

8-14

15B

1920

960

4

1280

240

976

16

16*

32

8-14

16

1920

960

4

1280

248

1000

8

8*

16

15

16A

1920

960

4

1280

248

992

8

16*

16

8-14

17

30

15

256

20

18

0

2

0

0

8-15

18

60

30

128

40

38

0

2

0

0

8-15

* If TFCI bits are not used, then DTX shall be used in TFCI field.

NOTE 1: Compressed mode is only supported through spreading factor reduction for SF=512 with TFCI.

NOTE 2: Compressed mode by spreading factor reduction is not supported for SF=4.

NOTE 3: If the Node B receives an invalid combination of data frames for downlink transmission, the procedure specified in [15], sub-clause 5.1.2, may require the use of DTX in both the DPDCH and the TFCI field of the DPCCH.

NOTE 4: Slot formats 17 and 18 are only used when DL_DCH_FET_Config is configured by higher layers.

The pilot bit patterns are described in table 12. The shadowed column part of pilot bit pattern is defined as FSW and FSWs can be used to confirm frame synchronization. (The value of the pilot bit pattern other than FSWs shall be "11".) In table 12, the transmission order is from left to right.

In downlink compressed mode through spreading factor reduction, the number of bits in the TPC and Pilot fields are doubled. Symbol repetition is used to fill up the fields. Denote the bits in one of these fields in normal mode by x1, x2, x3, …, xX. In compressed mode the following bit sequence is sent in corresponding field: x1, x2, x1, x2, x3, x4, x3, x4,…, xX,.

Table 12: Pilot bit patterns for downlink DPCCH with Npilot = 2, 4, 8 and 16

Npilot = 2

Npilot = 4 (*1)

Npilot = 8

(*2)

Npilot = 16

(*3)

Symbol #

0

0

1

0

1

2

3

0

1

2

3

4

5

6

7

Slot #0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

11

00

01

00

10

11

11

10

01

11

01

10

10

00

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

01

00

10

11

11

10

01

11

01

10

10

00

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

01

00

10

11

11

10

01

11

01

10

10

00

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

10

01

00

01

10

00

00

10

11

01

11

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

01

00

10

11

11

10

01

11

01

10

10

00

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

10

01

00

01

10

00

00

10

11

01

11

00

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

01

11

01

10

10

00

00

11

00

01

00

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

00

00

10

11

01

11

00

11

11

10

10

01

00

01

NOTE *1: This pattern is used except slot formats 2B and 3B.

NOTE *2: This pattern is used except slot formats 0B, 1B, 4B, 5B, 8B, and 9B.

NOTE *3: This pattern is used except slot formats 6B, 7B, 10B, 11B, 12B, and 13B.

NOTE: For slot format nB where n = 0, …, 15, the pilot bit pattern corresponding to Npilot/2 is to be used and symbol repetition shall be applied.

The relationship between the TPC symbol and the transmitter power control command is presented in table 13.

Table 13: TPC Bit Pattern

TPC Bit Pattern

Transmitter power control command

NTPC = 2

NTPC = 4

NTPC = 8

11

00

1111

0000

11111111

00000000

1

0

Multicode transmission may be employed in the downlink, i.e. the CCTrCH (see [3]) is mapped onto several parallel downlink DPCHs using the same spreading factor. In this case, the Layer 1 control information is transmitted only on the first downlink DPCH. DTX bits are transmitted during the corresponding time period for the additional downlink DPCHs, see figure 10.

In case there are several CCTrCHs mapped to different DPCHs transmitted to the same UE different spreading factors can be used on DPCHs to which different CCTrCHs are mapped. Also in this case, Layer 1 control information is only transmitted on the first DPCH while DTX bits are transmitted during the corresponding time period for the additional DPCHs.

Note : support of multiple CCTrChs of dedicated type is not part of the current release.

Figure 10: Downlink slot format in case of multi-code transmission

5.3.2.1 STTD for DPCH, F-DPCH and F-TPICH

The pilot bit pattern for the DPCH channel transmitted on antenna 2 is given in table 14.

– For Npilot = 8, 16 the shadowed part indicates pilot bits that are obtained by STTD encoding the corresponding (shadowed) bits in Table 12. The non-shadowed pilot bit pattern is orthogonal to the corresponding (non-shadowed) pilot bit pattern in table 12.

– For Npilot = 4, the diversity antenna pilot bit pattern is obtained by STTD encoding both the shadowed and non-shadowed pilot bits in table 12.

– For Npilot = 2, the diversity antenna pilot pattern is obtained by STTD encoding the two pilot bits in table 12 with the last two bits (data or DTX) of the second data field (data2) of the slot. Thus for Npilot = 2 case, the last two bits of the second data field (data 2) after STTD encoding, follow the diversity antenna pilot bits in Table 14.

– For Npilot = 0, transmit diversity is not used.

STTD encoding for the DPDCH, TPC, and TFCI fields is done as described in subclause 5.3.1.1.1. For the SF=512 DPCH, the first two bits in each slot, i.e. TPC bits, are not STTD encoded and the same bits are transmitted with equal power from the two antennas. The remaining four bits are STTD encoded.

For F-DPCH, the TPC bits are not STTD encoded and the same bits are transmitted with equal power from the two antennas.

For F-TPICH, the TPI bits are not STTD encoded and the same bits are transmitted with equal power from the two antennas.

For compressed mode through spreading factor reduction and for Npilot > 4, symbol repetition shall be applied to the pilot bit patterns of table 14, in the same manner as described in 5.3.2. For slot formats 2B and 3B, i.e. compressed mode through spreading factor reduction and Npilot = 4, the pilot bits transmitted on antenna 2 are STTD encoded, and thus the pilot bit pattern is as shown in the most right set of table 14.

Table 14: Pilot bit patterns of downlink DPCCH for antenna 2 using STTD

Npilot = 2 (*1)

Npilot = 4 (*2)

Npilot = 8

(*3)

Npilot = 16

(*4)

Npilot = 4 (*5)

Symbol #

0

0

1

0

1

2

3

0

1

2

3

4

5

6

7

0

1

Slot #0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

01

10

11

10

00

01

01

00

11

01

11

00

00

10

10

01

10

11

10

00

01

01

00

11

01

11

00

00

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

00

11

10

11

00

10

10

00

01

11

01

10

01

01

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

01

00

01

11

10

10

11

00

10

00

11

11

01

01

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

00

11

10

11

00

10

10

00

01

11

01

10

01

01

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

01

00

01

11

10

10

11

00

10

00

11

11

01

01

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

10

10

00

01

11

01

10

01

01

00

00

11

10

11

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

10

11

00

10

00

11

11

01

01

10

01

00

01

11

01

10

11

10

00

01

01

00

11

01

11

00

00

10

10

10

01

00

01

11

10

10

11

00

10

00

11

11

01

01

NOTE *1: The pilot bits precede the last two bits of the data2 field.

NOTE *2: This pattern is used except slot formats 2B and 3B.

NOTE *3: This pattern is used except slot formats 0B, 1B, 4B, 5B, 8B, and 9B.

NOTE *4: This pattern is used except slot formats 6B, 7B, 10B, 11B, 12B, and 13B.

NOTE *5: This pattern is used for slot formats 2B and 3B.

NOTE: For slot format nB where n = 0, 1, 4, 5, 6, …, 15, the pilot bit pattern corresponding to Npilot/2 is to be used and symbol repetition shall be applied.

5.3.2.2 Dedicated channel pilots with closed loop mode transmit diversity

In closed loop mode 1 orthogonal pilot patterns are used between the transmit antennas. Closed loop mode 1 shall not be used with DPCH slot formats for which Npilot=2. Pilot patterns defined in the table 12 will be used on antenna 1 and pilot patterns defined in the table 15 on antenna 2. This is illustrated in the figure 11 a which indicates the difference in the pilot patterns with different shading.

Table 15: Pilot bit patterns of downlink DPCCH for antenna 2 using closed loop mode 1

Npilot = 4

Npilot = 8

(*1)

Npilot = 16

(*2)

Symbol #

0

1

0

1

2

3

0

1

2

3

4

5

6

7

Slot #0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

01

10

11

10

00

01

01

00

11

01

11

00

00

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

00

11

10

11

00

10

10

00

01

11

01

10

01

01

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

01

00

01

11

10

10

11

00

10

00

11

11

01

01

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

00

11

10

11

00

10

10

00

01

11

01

10

01

01

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

01

00

01

11

10

10

11

00

10

00

11

11

01

01

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

00

10

10

00

01

11

01

10

01

01

00

00

11

10

11

00

00

00

00

00

00

00

00

00

00

00

00

00

00

00

10

10

11

00

10

00

11

11

01

01

10

01

00

01

11

NOTE *1: This pattern is used except slot formats 0B, 1B, 4B, 5B, 8B, and 9B.

NOTE *2: This pattern is used except slot formats 6B, 7B, 10B, 11B, 12B, and 13B.

NOTE: For slot format nB where n = 0, 1, 4, 5, 6, …, 15, the pilot bit pattern corresponding to Npilot/2 is to be used and symbol repetition shall be applied.

Figure 11: Slot structures for downlink dedicated physical channel diversity transmission.
Structure (a) is used in closed loop mode 1.
Different shading of the pilots indicate orthogonality of the patterns

5.3.2.3 Void

5.3.2.4 E-DCH Relative Grant Channel

An E-DCH Relative Grant Channel (E-RGCH) is a fixed rate (SF=128) dedicated downlink physical channel carrying the uplink E-DCH relative grants for one uplink E-DCH associated with the E-RGCH by higher layer signalling. Figure 12A illustrates the structure of the E-RGCH. A relative grant is transmitted using 3, 12 or 15 consecutive slots and in each slot a sequence of 40 ternary values is transmitted. The 3 and 12 slot duration shall be used on an E-RGCH transmitted to UEs for which the cell transmitting the E-RGCH is in the E-DCH serving radio link set and for which the E-DCH TTI is respectively 2 and 10 ms. The 15 slot duration shall be used on an E-RGCH transmitted to UEs for which the cell transmitting the E-RGCH is not in the E-DCH serving radio link set.

The sequence bi,0, bi,1, …, bi,39 transmitted in slot i in Figure 12A is given by bi,j = a Css,40,m(i),j. In a serving E-DCH radio link set, the relative grant a is set to +1, 0, or -1 and in a radio link not belonging to the serving E-DCH radio link set, the relative grant a is set to 0 or -1. The orthogonal signature sequences Css,40, m(i) is given by Table 16A and the index m(i) in slot i is given by Table 16B. The E-RGCH signature sequence index l in Table 16B is given by higher layers.

In case STTD-based open loop transmit diversity is applied for E-RGCH, STTD encoding according to subclause 5.3.1.1.1 is applied to the sequence bi,j.

Figure 12A: E-RGCH and E-HICH structure

Table 16A: E-RGCH and E-HICH signature sequences

Css,40,0

-1

-1

-1

1

-1

1

-1

-1

1

1

-1

-1

1

-1

1

1

-1

1

1

-1

-1

-1

-1

-1

-1

-1

-1

1

-1

1

-1

-1

1

1

1

1

1

-1

-1

-1

Css,40,1

-1

1

1

-1

-1

1

1

1

-1

-1

1

-1

1

1

-1

-1

-1

-1

1

1

1

-1

-1

-1

-1

1

-1

-1

-1

-1

-1

-1

-1

1

1

-1

1

1

-1

-1

Css,40,2

-1

-1

-1

1

-1

1

1

1

-1

-1

-1

-1

1

-1

-1

1

1

-1

-1

1

1

-1

1

1

1

-1

-1

1

1

1

-1

1

-1

-1

-1

-1

-1

-1

-1

-1

Css,40,3

1

-1

-1

-1

-1

-1

-1

1

1

1

-1

1

-1

1

-1

1

-1

-1

1

1

-1

1

-1

-1

1

1

-1

1

-1

-1

1

1

-1

-1

1

-1

-1

-1

-1

-1

Css,40,4

1

1

1

-1

-1

1

-1

1

-1

-1

1

1

1

-1

1

1

1

1

1

1

-1

1

1

1

-1

-1

-1

1

1

-1

1

-1

1

-1

1

1

-1

1

-1

-1

Css,40,5

-1

1

-1

-1

1

1

1

-1

1

1

-1

1

1

1

-1

1

1

1

-1

-1

1

-1

-1

1

-1

1

-1

1

-1

-1

1

-1

1

-1

-1

-1

-1

1

1

-1

Css,40,6

1

1

-1

-1

-1

1

1

-1

1

1

-1

-1

1

-1

-1

-1

-1

1

1

-1

1

1

1

-1

1

-1

1

-1

1

-1

-1

1

1

-1

1

-1

-1

1

-1

1

Css,40,7

-1

1

-1

1

1

1

-1

-1

-1

-1

-1

1

1

1

1

-1

-1

-1

1

-1

-1

-1

1

-1

1

1

-1

-1

1

1

1

1

-1

-1

1

1

-1

1

1

-1

Css,40,8

1

1

-1

1

1

-1

1

1

1

1

-1

-1

-1

-1

1

-1

1

-1

1

1

1

1

-1

1

-1

-1

-1

-1

-1

1

-1

-1

-1

-1

1

1

-1

1

1

-1

Css,40,9

-1

1

-1

-1

-1

-1

1

-1

-1

-1

-1

1

-1

-1

1

1

1

-1

1

-1

1

-1

-1

1

1

-1

1

1

-1

-1

1

1

-1

1

1

1

1

1

-1

1

Css,40,10

-1

1

1

-1

1

1

-1

1

1

1

1

-1

1

-1

1

1

-1

-1

-1

1

-1

-1

-1

-1

1

-1

1

1

-1

-1

-1

1

-1

-1

-1

1

-1

1

1

1

Css,40,11

-1

1

-1

-1

-1

-1

-1

1

1

1

-1

-1

-1

1

1

-1

1

1

-1

1

-1

-1

1

1

1

1

-1

-1

1

-1

-1

1

1

1

-1

1

1

1

-1

-1

Css,40,12

-1

-1

-1

-1

1

-1

1

1

-1

-1

-1

-1

-1

1

1

1

-1

1

1

1

1

-1

1

-1

-1

1

1

1

1

-1

-1

-1

1

-1

1

1

-1

-1

1

1

Css,40,13

1

1

1

1

-1

-1

1

-1

-1

-1

1

-1

-1

1

1

1

-1

1

-1

-1

1

1

-1

-1

1

1

-1

1

-1

1

-1

1

1

-1

-1

1

-1

1

-1

-1

Css,40,14

-1

1

1

1

-1

-1

-1

-1

1

1

1

-1

-1

1

-1

1

1

-1

1

-1

-1

-1

1

1

-1

1

1

1

1

1

-1

-1

-1

-1

1

-1

-1

1

-1

1

Css,40,15

-1

-1

1

1

-1

1

1

1

1

1

1

1

1

1

1

-1

1

1

1

1

1

-1

-1

1

1

1

1

-1

-1

1

1

1

1

-1

1

1

-1

-1

-1

1

Css,40,16

1

-1

-1

-1

-1

1

-1

-1

-1

-1

-1

-1

1

1

1

-1

1

-1

-1

-1

-1

1

-1

1

-1

1

1

-1

-1

-1

-1

-1

-1

-1

-1

1

-1

-1

-1

1

Css,40,17

1

-1

1

-1

1

1

1

-1

1

1

1

-1

1

1

1

1

1

-1

1

-1

1

1

1

1

1

1

-1

1

1

-1

-1

1

-1

1

1

1

1

-1

1

-1

Css,40,18

1

1

-1

1

-1

1

1

1

1

1

-1

1

1

1

1

1

-1

-1

-1

1

1

1

1

-1

-1

1

1

1

1

1

1

-1

-1

1

-1

1

1

1

-1

1

Css,40,19

1

1

-1

1

1

1

-1

1

-1

-1

-1

-1

1

1

-1

1

1

1

1

1

-1

1

-1

1

1

1

1

1

-1

1

-1

1

1

1

1

-1

1

1

1

1

Css,40,20

1

1

1

-1

1

1

-1

1

-1

1

-1

1

-1

-1

-1

1

-1

-1

1

-1

1

-1

-1

1

1

1

1

-1

1

1

-1

-1

1

1

-1

1

-1

-1

-1

-1

Css,40,21

-1

1

1

-1

-1

-1

-1

1

-1

1

-1

-1

1

-1

-1

1

1

-1

-1

-1

1

1

1

-1

-1

1

-1

-1

-1

1

1

1

1

-1

1

1

1

-1

1

1

Css,40,22

-1

-1

-1

1

-1

-1

-1

1

-1

1

1

-1

1

1

-1

-1

-1

-1

1

-1

1

1

-1

1

1

-1

-1

1

1

-1

1

-1

1

1

-1

1

-1

1

1

1

Css,40,23

1

-1

-1

-1

-1

1

1

1

1

-1

1

1

-1

-1

-1

-1

1

-1

-1

-1

-1

-1

1

-1

1

1

-1

1

-1

1

-1

-1

1

1

1

1

-1

1

1

1

Css,40,24

-1

-1

-1

1

1

1

-1

-1

1

-1

1

-1

-1

-1

-1

1

1

-1

1

1

1

1

1

-1

1

1

1

-1

-1

-1

1

-1

1

-1

-1

1

1

1

-1

-1

Css,40,25

-1

1

-1

-1

1

-1

-1

-1

1

-1

1

1

1

-1

-1

-1

-1

1

1

1

1

1

1

1

-1

1

-1

1

-1

1

-1

1

-1

1

-1

1

-1

-1

-1

1

Css,40,26

-1

-1

1

1

1

1

1

1

-1

1

-1

1

-1

-1

1

-1

-1

-1

1

-1

-1

1

1

1

-1

1

-1

1

-1

-1

-1

1

1

-1

-1

-1

1

1

-1

1

Css,40,27

1

-1

1

-1

-1

1

-1

1

1

-1

-1

-1

-1

1

-1

-1

-1

1

1

-1

1

-1

1

1

-1

-1

1

1

-1

1

1

1

-1

-1

-1

1

1

1

1

-1

Css,40,28

1

1

-1

1

1

1

-1

1

1

-1

1

-1

-1

1

1

1

-1

-1

-1

-1

1

-1

1

1

-1

-1

-1

-1

-1

-1

1

1

1

1

1

-1

-1

-1

-1

1

Css,40,29

-1

1

-1

-1

-1

1

-1

-1

-1

1

1

1

-1

1

1

-1

-1

-1

-1

1

1

1

1

1

1

-1

1

1

-1

1

-1

-1

1

-1

1

-1

1

-1

1

-1

Css,40,30

-1

1

1

-1

1

-1

1

1

1

-1

-1

-1

1

1

1

-1

1

-1

1

-1

-1

1

1

-1

1

-1

1

1

-1

1

1

-1

1

1

-1

-1

-1

-1

-1

-1

Css,40,31

-1

1

-1

-1

-1

1

1

1

1

-1

1

-1

-1

-1

1

1

-1

1

1

-1

-1

1

-1

1

1

1

-1

-1

1

1

1

-1

-1

-1

-1

-1

1

-1

1

1

Css,40,32

1

1

1

1

-1

-1

1

-1

1

-1

-1

1

1

1

-1

1

-1

-1

1

1

-1

-1

1

1

1

-1

-1

-1

-1

-1

-1

-1

1

-1

-1

1

1

-1

1

1

Css,40,33

-1

-1

-1

-1

1

-1

1

1

1

-1

1

1

1

1

-1

1

-1

-1

-1

-1

-1

1

-1

1

-1

-1

1

-1

1

1

-1

1

1

-1

1

1

1

1

-1

-1

Css,40,34

1

-1

-1

-1

1

-1

-1

1

-1

1

1

1

1

1

1

1

1

1

1

-1

1

-1

1

-1

1

-1

-1

-1

-1

1

-1

-1

-1

-1

-1

-1

1

1

-1

1

Css,40,35

-1

-1

1

1

-1

-1

-1

1

1

-1

-1

1

1

-1

1

1

-1

1

-1

-1

1

1

1

1

1

1

1

-1

-1

-1

-1

-1

-1

1

1

-1

-1

1

1

-1

Css,40,36

-1

1

1

1

1

1

-1

1

1

-1

-1

1

-1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

1

-1

-1

1

1

-1

-1

-1

-1

-1

1

1

1

-1

-1

1

Css,40,37

1

-1

1

-1

1

-1

-1

-1

1

-1

-1

-1

1

-1

1

-1

-1

-1

-1

1

1

-1

-1

1

1

1

-1

1

1

1

1

-1

1

-1

1

-1

1

1

-1

1

Css,40,38

-1

-1

1

-1

1

1

1

-1

-1

1

-1

-1

-1

1

-1

1

-1

1

-1

1

-1

1

1

1

1

-1

-1

-1

-1

1

1

-1

-1

1

1

1

-1

1

-1

1

Css,40,39

-1

-1

1

-1

-1

1

-1

-1

1

-1

-1

1

-1

1

1

1

1

-1

1

1

1

1

-1

-1

-1

-1

-1

-1

1

1

-1

1

1

1

-1

-1

-1

1

1

1

The bits are transmitted in order from left to right, i.e., column 2 corresponds to index j=0 and the rightmost column corresponds to index j=39.

Table 16B: E-HICH and E-RGCH signature hopping pattern

Sequence index l

Row index m(i) for slot i

0

0

2

13

1

1

18

18

2

2

8

33

3

3

16

32

4

4

13

10

5

5

3

25

6

6

12

16

7

7

6

1

8

8

19

39

9

9

34

14

10

10

4

5

11

11

17

34

12

12

29

30

13

13

11

23

14

14

24

22

15

15

28

21

16

16

35

19

17

17

21

36

18

18

37

2

19

19

23

11

20

20

39

9

21

21

22

3

22

22

9

15

23

23

36

20

24

24

0

26

25

25

5

24

26

26

7

8

27

27

27

17

28

28

32

29

29

29

15

38

30

30

30

12

31

31

26

7

32

32

20

37

33

33

1

35

34

34

14

0

35

35

33

31

36

36

25

28

37

37

10

27

38

38

31

4

39

39

38

6

5.3.2.5 E-DCH Hybrid ARQ Indicator Channel

An E-DCH Hybrid ARQ Indicator Channel (E-HICH) is a fixed rate (SF=128) dedicated downlink physical channel carrying the uplink E-DCH hybrid ARQ acknowledgement indicator for one uplink E-DCH.

The uplink E-DCH is associated with the E-HICH signature sequence(s) provided by higher layer signalling. Figure 12A illustrates the structure of the E-HICH. A hybrid ARQ acknowledgement indicator is transmitted using 3 or 12 consecutive slots and in each slot a sequence of 40 binary values is transmitted. The 3 and 12 slot duration shall be used for UEs which E-DCH TTI is set to respectively 2 ms and 10 ms.

The sequence bi,0, bi,1, …, bi,39 transmitted in slot i in Figure 12A is given by bi,j = a Css,40, m(i),j. In a radio link set containing the serving E-DCH radio link set, the hybrid ARQ acknowledgement indicator a is set to +1 or –1, and in a radio link set not containing the serving E-DCH radio link set the hybrid ARQ indicator a is set to +1 or 0. The orthogonal signature sequences Css,40,m(i) is given by Table 16A and the index m(i) in slot i is given by Table 16B. The E-HICH signature sequence index l is given by higher layers.

In case STTD-based open loop transmit diversity is applied for E-HICH, STTD encoding according to subclause 5.3.1.1.1 is applied to the sequence bi,j

If UL_MIMO_Enabled is TRUE, the UE is configured with a second E-HICH signature sequence associated with HARQ acknowledgments for the transport block transmitted on S-E-DPDCHs.

5.3.2.6 Fractional Dedicated Physical Channel (F-DPCH)

An F-DPCH carries control information generated at layer 1 (TPC commands) for one uplink DPCCH associated with the F-DPCH by higher layer signalling. It is a special case of downlink DPCCH.

If DPCCH2 is configured, an additional F-DPCH carries control information generated at layer 1 (TPC commands) for one uplink DPCCH2 associated with the F-DPCH by higher layer signalling.

Figure 12B shows the frame structure of the F-DPCH. Each frame of length 10ms is split into 15 slots, each of length Tslot = 2560 chips, corresponding to one power-control period.

Figure 12B: Frame structure for F-DPCH

The exact number of bits of the OFF periods and of the F-DPCH fields (NTPC) is described in table 16C. Each slot format corresponds to a different set of OFF periods within the F-DPCH slot.

If DPCCH2 is configured, the slot format of F-DPCH associated with the DPCCH shall be different from the slot format of F-DPCH associated with the DPCCH2.

Table 16C: F-DPCH fields

Slot Format #i

Channel Bit Rate (kbps)

Channel Symbol Rate (ksps)

SF

Bits/ Slot

NOFF1

Bits/Slot

NTPC

Bits/Slot

NOFF2

Bits/Slot

0

3

1.5

256

20

2

2

16

1

3

1.5

256

20

4

2

14

2

3

1.5

256

20

6

2

12

3

3

1.5

256

20

8

2

10

4

3

1.5

256

20

10

2

8

5

3

1.5

256

20

12

2

6

6

3

1.5

256

20

14

2

4

7

3

1.5

256

20

16

2

2

8

3

1.5

256

20

18

2

0

9

3

1.5

256

20

0

2

18

In compressed frames, F-DPCH is not transmitted in downlink transmission gaps given by transmission gap pattern sequences signalled by higher layers.

The relationship between the TPC symbol and the transmitter power control command is according to table 13.

5.3.2.7 Fractional Transmitted Precoding Indicator Channel (F-TPICH)

An F-TPICH carries transmitted precoding indicator generated at layer 1 for uplink CLTD operation.

Figure 12C shows the frame structure of the F-TPICH. Each frame of length 10ms is split into 15 slots, each of length Tslot = 2560 chips. A TPI is transmitted using the first two consecutive slots within one subframe, and in each slot one symbol is transmitted using the same slot format.

Figure 12C: Frame structure for F-TPICH

The exact number of bits of the OFF periods and of the F-TPICH fields (NTPI) is described in table 16D. Each slot format corresponds to a different set of OFF periods within the F-TPICH slot.

Table 16D: F-TPICH fields

Slot Format #i

Channel Bit Rate (kbps)

Channel Symbol Rate (ksps)

SF

Bits/ Slot

NOFF1

Bits/Slot

NTPI

Bits/Slot

NOFF2

Bits/Slot

0

3

1.5

256

20

2

2

16

1

3

1.5

256

20

4

2

14

2

3

1.5

256

20

6

2

12

3

3

1.5

256

20

8

2

10

4

3

1.5

256

20

10

2

8

5

3

1.5

256

20

12

2

6

6

3

1.5

256

20

14

2

4

7

3

1.5

256

20

16

2

2

8

3

1.5

256

20

18

2

0

9

3

1.5

256

20

0

2

18

The relationship between TPI and bit pattern on F-TPICH is defined in [5].

For a given UE, the TPI feedback bits are not transmitted on F-TPICH bits that overlap with the TPC bits on the F-DPCH channel.

In compressed frames, if one of the two slots corresponding to the TPI indication overlaps with the downlink transmission gaps given by transmission gap pattern sequences signalled by higher layers, neither of the slots is transmitted.