1. A method of wireless communication operable at a base station, comprising:
receiving a transmission comprising a primary pilot channel and a secondary pilot channel;
determining a first compensation value for the primary pilot channel;
deriving a second compensation value for the secondary pilot channel based on the first compensation value determined for the primary pilot channel; and
applying the first compensation value and the second compensation value to a receiver for compensating a characteristic of the transmission.
2. The method of claim 1, wherein the deriving of the second compensation value for the secondary pilot channel comprises determining the second compensation value for the secondary pilot channel exclusively based on the first compensation value determined for the primary pilot channel, independent of any characteristic of the secondary pilot channel.
3. The method of claim 1, wherein the determining of the first compensation value for the primary pilot channel comprises running at least one tracking loop on the primary pilot channel.
4. The method of claim 3, wherein the at least one tracking loop comprises at least one of a searcher, a time tracking loop, or a frequency tracking loop.
5. The method of claim 3, wherein the first compensation value for the primary pilot channel comprises at least one of a finger timing value or a frequency compensation value.
6. The method of claim 1, further comprising determining a beamforming weight vector corresponding to the primary pilot channel and the secondary pilot channel.
7. The method of claim 6, further comprising transmitting the beamforming weight vector on a downlink feedback channel.
8. A base station configured for use in a wireless communication system, comprising:
at least one processor;
a memory coupled to the at least one processor; and
a receiver coupled to the at least one processor, for receiving a transmission comprising a primary pilot channel and a secondary pilot channel,
wherein the at least one processor is configured to:
determine a first compensation value for the primary pilot channel;
derive a second compensation value for the secondary pilot channel based on the first compensation value determined for the primary pilot channel; and
apply the first compensation value and the second compensation value to the receiver for compensating a characteristic of the transmission.
9. The base station of claim 8, wherein the deriving of the second compensation value for the secondary pilot channel comprises determining the second compensation value for the secondary pilot channel exclusively based on the first compensation value determined for the primary pilot channel, independent of any characteristic of the secondary pilot channel.
10. The base station of claim 8, wherein the determining of the first compensation value for the primary pilot channel comprises running at least one tracking loop on the primary pilot channel.
11. The base station of claim 10, wherein the at least one tracking loop comprises at least one of a searcher, a time tracking loop, or a frequency tracking loop.
12. The base station of claim 10, wherein the first compensation value for the primary pilot channel comprises at least one of a finger timing value or a frequency compensation value.
13. The base station of claim 8, wherein the at least one processor is further configured to determine a beamforming weight vector corresponding to the primary pilot channel and the secondary pilot channel.
14. The base station of claim 13, further comprising a transmitter coupled to the at least one processor, for transmitting the beamforming weight vector on a downlink feedback channel.
15. A base station configured for use in a wireless communication system, comprising:
means for receiving a transmission comprising a primary pilot channel and a secondary pilot channel;
means for determining a first compensation value for the primary pilot channel;
means for deriving a second compensation value for the secondary pilot channel based on the first compensation value determined for the primary pilot channel; and
means for applying the first compensation value and the second compensation value to a receiver for compensating a characteristic of the transmission.
16. The base station of claim 15, wherein the means for deriving the second compensation value for the secondary pilot channel is further configured to determine the second compensation value for the secondary pilot channel exclusively based on the first compensation value determined for the primary pilot channel, independent of any characteristic of the secondary pilot channel.
17. The base station of claim 15, wherein the means for determining the first compensation value for the primary pilot channel is further configured to run at least one tracking loop on the primary pilot channel.
18. The base station of claim 17, wherein the at least one tracking loop comprises at least one of a searcher, a time tracking loop, or a frequency tracking loop.
19. The base station of claim 17, wherein the first compensation value for the primary pilot channel comprises at least one of a finger timing value or a frequency compensation value.
20. The base station of claim 15, further comprising means for determining a beamforming weight vector corresponding to the primary pilot channel and the secondary pilot channel.
21. The base station of claim 20, further comprising means for transmitting the beamforming weight vector on a downlink feedback channel.
22. A computer program product operable at a base station, comprising:
a computer-readable medium comprising:
instructions for causing a computer to receive a transmission comprising a primary pilot channel and a secondary pilot channel;
instructions for causing a computer to determine a first compensation value for the primary pilot channel;
instructions for causing a computer to derive a second compensation value for the secondary pilot channel based on the first compensation value determined for the primary pilot channel; and
instructions for causing a computer to apply the first compensation value and the second compensation value to a receiver for compensating a characteristic of the transmission.
23. The computer program product of claim 22, wherein the instructions for causing a computer to derive the second compensation value for the secondary pilot channel further comprise instructions for causing a computer to determine the second compensation value for the secondary pilot channel exclusively based on the first compensation value determined for the primary pilot channel, independent of any characteristic of the secondary pilot channel.
24. The computer program product of claim 22, wherein the instructions for causing a computer to determine the first compensation value for the primary pilot channel further comprise instructions for causing a computer to run at least one tracking loop on the primary pilot channel.
25. The computer program product of claim 24, wherein the at least one tracking loop comprises at least one of a searcher, a time tracking loop, or a frequency tracking loop.
26. The computer program product of claim 24, wherein the first compensation value for the primary pilot channel comprises at least one of a finger timing value or a frequency compensation value.
27. The computer program product of claim 22, further comprising instructions for causing a computer to determine a beamforming weight vector corresponding to the primary pilot channel and the secondary pilot channel.
28. The computer program product of claim 27, further comprising instructions for causing a computer to transmit the beamforming weight vector on a downlink feedback channel.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An inflator comprising:
a tubular inflator housing in which an opening portion at one end is closed, an opening portion at the other end is closed by a closure and the interior is charged with a gas, an igniter assembly, attached to the closure side, and a tubular gas discharge port,
the closure having an opening portion that serves as a gas passage in a part thereof, the opening portion being closed by a rupturable plate,
the igniter assembly formed by integrating a part of a metallic igniter collar and an electric igniter with a resin,
the igniter collar being fixed to the closure such that a space serving as a gas passage is formed between the igniter collar and the closure and an ignition portion of the electric igniter directly opposes the rupturable plate, and
the tubular gas discharge port including a plurality of gas discharge holes in a peripheral surface thereof, one end side of the tubular gas discharge port being welded and fixed to a part of the closure excluding the opening portion, a part of the peripheral surface of the tubular gas discharge port being supported by another part of the igniter collar, the other end side of the tubular gas discharge port projecting to the outside of the igniter collar.
2. The inflator according to claim 1, wherein, when the closure is bisected, an opening portion serving as a gas passage is formed in one part of the bisected closure, and one end of the gas discharge port is welded and fixed to the other part of the bisected closure.
3. The inflator according to claim 1, wherein the tubular gas discharge port is provided with an internal gas discharge hole formed in the space serving as a gas passage, and an external gas discharge hole formed in the part thereof that projects to the outside of the igniter collar.
4. The inflator according to claim 1, wherein a tubular projecting portion is formed on a part of the metallic collar, and a part of the peripheral surface of the tubular gas discharge port is supported by the tubular projecting portion.
5. The inflator according to claim 1, wherein the tubular projecting portion of the metallic collar is connected to a gas introduction pipe that is connected to an air bag in order to introduce a gas into the air bag, and a gap exists between an inner wall surface of the tubular projecting portion and the peripheral surface of the tubular gas discharge port.
6. The inflator according to claim 1, wherein the opening portion, which is formed in the closure and serves as a gas passage, controls a gas flow rate in a gas passage extending from the opening portion of the closure to the external gas discharge hole.
7. The inflator according to claim 2, wherein the tubular gas discharge port is provided with an internal gas discharge hole formed in the space serving as a gas passage, and an external gas discharge hole formed in the part thereof that projects to the outside of the igniter collar.
8. The inflator according to claim 2, wherein a tubular projecting portion is formed on a part of the metallic collar, and a part of the peripheral surface of the tubular gas discharge port is supported by the tubular projecting portion.
9. The inflator according to claim 2, wherein the tubular projecting portion of the metallic collar is connected to a gas introduction pipe that is connected to an air bag in order to introduce a gas into the air bag, and a gap exists between an inner wall surface of the tubular projecting portion and the peripheral surface of the tubular gas discharge port.
10. The inflator according to claim 2, wherein the opening portion, which is formed in the closure and serves as a gas passage, controls a gas flow rate in a gas passage extending from the opening portion of the closure to the external gas discharge hole.