Wednesday, December 19, 2012

Accumulation Enable vs DCI 3/3A


From specs 36.213, 5.1. With 'Absolute Power' config i.e. 'Accumulation not enabled', DCI 3/3A cannot be supported and hence TPC-PUSCH-RNTI shall not be configured when accumulation is not enabled.

 

Please note the table and below mentioned text for reference in specs, which indicate support of absolute configuration only with DCI Format 0.

 

    • if accumulation is not enabled based on the UE-specific parameter Accumulation-enabled provided by higher layers
      • where was signalled on PDCCH with DCI format 0 on subframe  
      • The value of  is
        • For FDD,= 4
        • For TDD UL/DL configurations 1-6,  is given in Table 5.1.1.1-1
        • For TDD UL/DL configuration 0
          • If the PUSCH transmission in subframe 2 or 7 is scheduled with a PDCCHof DCI format 0 in which the LSB of the UL index is set to 1, = 7
          • For all other PUSCH transmissions,  is given in Table 5.1.1.1-1.
      • The  dB absolute values signalled on PDCCH with DCI format 0 are given in Table 5.1.1.1-2.

 

Table 5.1.1.1-2: Mapping of TPC Command Field in DCI format 0/3 to absolute and accumulated  values.

TPC Command Field in

DCI format 0/3

Accumulated [dB]

Absolute [dB] only DCI format 0

0

-1

-4

1

0

-1

2

1

1

3

3

4

 

 

 




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