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Table 3 Bit allocation for Ï• 21 and Ï• 11 when the average number of feedback bit is 12

From: Beamforming matrix quantization with variable feedback rate

Bit representative of

Bits allocated for Ï•21and Ï•11

Total number of feedback bits

ψ 31 *

ψ 21 *

bϕ21

bϕ11

 

00

00

3

6

13

00

01

4

5

13

00

10

5

4

13

00

11

6

3

13

01

00

3

5

12

01

01

4

4

12

01

10

4

4

12

01

11

5

3

12

10

00

3

5

12

10

01

4

4

12

10

10

4

4

12

10

11

5

3

12

11

00

3

4

11

11

01

3

4

11

11

10

4

3

11

11

11

4

3

11

  1. *Possible values for ψ31 and ψ21 are [8 25 41 62] degree.