Method and apparatus for mapping of absolute power grant values in wireless communications
A method and apparatus for adjusting power grants in wireless communications. Multiple power grant tables are stored and one or more tables are designated during communication.
1. A wireless transmit/receive unit (WTRU) comprising:
a receiver configured to receive a signal indicating enhanced absolute grant value channel information, wherein the enhanced absolute grant value channel information is indicative of a modulation type; and
a processor configured to:
determine a segment of an absolute grant value table based on the signal;
determine an absolute grant value from the segment of the absolute grant value table; and
send data in accordance with the determined absolute grant value and the modulation type.
2. The WTRU of claim 1 , wherein the signal comprises an offset.
3. The WTRU of claim 2 , wherein the offset indicates the segment of the absolute grant value table to be used.
4. The WTRU of claim 2 , wherein the offset corresponds to the modulation type.
5. The WTRU of claim 1 , wherein the segment corresponds to the modulation type.
6. The WTRU of claim 1 , wherein the absolute grant value table is stored in the WTRU.
7. The WTRU of claim 1 , wherein the signal is received from a higher layer.
8. The WTRU of claim 1 , wherein the signal is received in a Radio Access Network (RAN) through Radio Resource Control (RRC) signaling.
9. The WTRU of claim 1 , wherein the modulation type is 16-symbol quadrature amplitude modulation (QAM) or binary phase-shift keying (BPSK).
10. The WTRU of claim 1 , wherein the absolute grant value is characterized by a square of a ratio of enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH) amplitude to E-DCH dedicated physical control channel (E-DPCCH) amplitude.
11. A wireless transmit/receive unit (WTRU) comprising:
a receiver configured to receive a signal indicating enhanced absolute grant value channel information, wherein the enhanced absolute grant value channel information is indicative of a modulation type; and
a processor configured to:
determine an offset based on the signal;
apply the offset to an absolute grant value table to determine an absolute grant value; and
send data in accordance with the determined absolute grant value and the modulation type.
12. The WTRU of claim 11 , wherein the offset indicates a starting index of the absolute grant value table.
13. The WTRU of claim 12 , wherein the starting index corresponds to the modulation type.
14. The WTRU of claim 11 , wherein the signal comprises the offset.
15. The WTRU of claim 11 , wherein the offset corresponds to the modulation type.
16. The WTRU of claim 11 , wherein the absolute grant value table is stored in the WTRU.
17. The WTRU of claim 11 , wherein the signal is received from a higher layer.
18. The WTRU of claim 11 , wherein the signal is received in a Radio Access Network (RAN) through Radio Resource Control (RRC) signaling.
19. The WTRU of claim 11 , wherein the modulation type is 16-symbol quadrature amplitude modulation (QAM) type or binary phase-shift keying (BPSK).
20. The WTRU of claim 11 , wherein the absolute grant value is characterized by a square of a ratio of enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH) amplitude to E-DCH dedicated physical control channel (E-DPCCH) amplitude.