Section: 5.5.1.3 Group hopping
Content: The sequence-group number in slot is defined by a group hopping pattern and a sequence-shift pattern according to There are 17 different hopping patterns and 30 different sequence-shift patterns. Sequence-group hopping can be enabled or disabled by means of the cell-specific parameter Group-hopping-enabled provided by higher layers. Sequence-group hopping for PUSCH can be disabled for a certain UE through the higher-layer parameter Disable-sequence-group-hopping despite being enabled on a cell basis unless the PUSCH transmission corresponds to a Random Access Response Grant or a retransmission of the same transport block as part of the contention based random access procedure. The group-hopping pattern may be different for PUSCH, (S)PUCCH and SRS and is given by where the pseudo-random sequence is defined by clause 7.2. The pseudo-random sequence generator shall be initialized with at the beginning of each radio frame where is given by clause 5.5.1.5. The sequence-shift pattern definition differs between PUCCH, PUSCH and SRS. For SPUCCH/PUCCH, the sequence-shift pattern is given by where is given by clause 5.5.1.5. For PUSCH, the sequence-shift pattern is given by , where is configured by higher layers, if no value for is provided by higher layers or if the PUSCH transmission corresponds to a Random Access Response Grant or a retransmission of the same transport block as part of the contention based random access procedure, otherwise it is given by with given by clause 5.5.1.5. For SRS, the sequence-shift pattern is given by where is given by clause 5.5.1.5.