B.1 MS classes for multislot capability

05.023GPPMultiplexing and Multiple Access on the Radio PathTS

When an MS supports the use of multiple timeslots it shall belong to a multislot class as defined below:

Table B.1

Multislot class

Maximum number of slots

Minimum number of slots

Type

Rx

Tx

Sum

Tta

Ttb

Tra

Trb

1

1

1

2

3

2

4

2

1

2

2

1

3

3

2

3

1

1

3

2

2

3

3

2

3

1

1

4

3

1

4

3

1

3

1

1

5

2

2

4

3

1

3

1

1

6

3

2

4

3

1

3

1

1

7

3

3

4

3

1

3

1

1

8

4

1

5

3

1

2

1

1

9

3

2

5

3

1

2

1

1

10

4

2

5

3

1

2

1

1

11

4

3

5

3

1

2

1

1

12

4

4

5

2

1

2

1

1

13

3

3

NA

NA

a)

3

a)

2

14

4

4

NA

NA

a)

3

a)

2

15

5

5

NA

NA

a)

3

a)

2

16

6

6

NA

NA

a)

2

a)

2

17

7

7

NA

NA

a)

1

0

2

18

8

8

NA

NA

0

0

0

2

19

6

2

NA

3

b)

2

c)

1

20

6

3

NA

3

b)

2

c)

1

21

6

4

NA

3

b)

2

c)

1

22

6

4

NA

2

b)

2

c)

1

23

6

6

NA

2

b)

2

c)

1

24

8

2

NA

3

b)

2

c)

1

25

8

3

NA

3

b)

2

c)

1

26

8

4

NA

3

b)

2

c)

1

27

8

4

NA

2

b)

2

c)

1

28

8

6

NA

2

b)

2

c)

1

29

8

8

NA

2

b)

2

c)

1

a) = 1 with frequency hopping.

= 0 without frequency hopping.

b) = 1 with frequency hopping or change from Rx to Tx.

= 0 without frequency hopping and no change from Rx to Tx.

c) = 1 with frequency hopping or change from Tx to Rx.

= 0 without frequency hopping and no change from Tx to Rx.

Type 1 MS are not required to transmit and receive at the same time.

Type 2 MS are required to be able to transmit and receive at the same time.

For HSCSD, only multislot classes 1 – 18 are recognised. An MS with a higher multislot class number shall indicate a suitable multislot class less than 19 for HSCSD applications (see GSM 04.08).

Rx:

Rx describes the maximum number of receive timeslots that the MS can use per TDMA frame. The MS must be able to support all integer values of receive TS from 0 to Rx (depending on the services supported by the MS). The receive TS need not be contiguous. For type 1 MS, the receive TS shall be allocated within window of size Rx, and no transmit TS shall occur between receive TS within a TDMA frame.

Tx:

Tx describes the maximum number of transmit timeslots that the MS can use per TDMA frame. The MS must be able to support all integer values of transmit TS from 0 to Tx (depending on the services supported by the MS). The transmit TS need not be contiguous. For type 1 MS, the transmit TS shall be allocated within window of size Tx, and no receive TS shall occur between transmit TS within a TDMA frame.

Sum:

Sum is the total number of uplink and downlink TS that can actually be used by the MS per TDMA frame. The MS must be able to support all combinations of integer values of Rx and Tx TS where 1 <= Rx + Tx <= Sum (depending on the services supported by the MS). Sum is not applicable to all classes.

Tta:

Tta relates to the time needed for the MS to perform adjacent cell signal level measurement and get ready to transmit.

For type 1 MS it is the minimum number of timeslots that will be allowed between the end of the previous transmit or receive TS and the next transmit TS when measurement is to be performed between. It should be noted that, in practice, the minimum time allowed may be reduced by amount of timing advance.

For type 1 MS that supports extended TA, the parameter Tta is increased by 1 if TA > 63 and there is a change from RX to TX.

For type 2 MS it is not applicable.

For circuit switched multislot configurations as defined in clause 6.4.2.1, Tta is not applicable.

Ttb:

Ttb relates to the time needed for the MS to get ready to transmit. This minimum requirement will only be used when adjacent cell power measurements are not required by the service selected.

For type 1 MS it is the minimum number of timeslots that will be allowed between the end of the last previous receive TS and the first next transmit TS or between the previous transmit TS and the next transmit TS when the frequency is changed in between. It should be noted that, in practice, the minimum time allowed may be reduced by the amount of the timing advance.

For type 1 MS that supports extended TA, the parameter Ttb = 2 if TA > 63 and there is a change from RX to TX.

For type 2 MS it is the minimum number of timeslots that will be allowed between the end of the last transmit burst in a TDMA frame and the first transmit burst in the next TDMA frame.

Tra:

Tra relates to the time needed for the MS to perform adjacent cell signal level measurement and get ready to receive.

For type 1 MS it is the minimum number of timeslots that will be allowed between the previous transmit or receive TS and the next receive TS when measurement is to be performed between.

For type 2 MS it is the minimum number of timeslots that will be allowed between the end of the last receive burst in a TDMA frame and the first receive burst in the next TDMA frame.

Trb:

Trb relates to the time needed for the MS to get ready to receive. This minimum requirement will only be used when adjacent cell power measurements are not required by the service selected.

For type 1 MS it is the minimum number of timeslots that will be allowed between the previous transmit TS and the next receive TS or between the previous receive TS and the next receive TS when the frequency is changed in between.

For type 2 MS it is the minimum number of timeslots that will be allowed between the end of the last receive burst in a TDMA frame and the first receive burst in the next TDMA frame.