[특허]Subchannel control loop

Subchannel control loop 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G08C-017/00
출원번호	UP-0804621 (2001-03-12)
등록번호	US-7843863 (2011-01-31)
발명자 / 주소	Willenegger, Serge Jou, Yu-Cheun
출원인 / 주소	QUALCOMM Incorporated
대리인 / 주소	Vo, Dang M.
인용정보	피인용 횟수 : 0 인용 특허 : 66

초록 ▼

Independently controlling the transmitted power of each subchannel by a subchannel control loop is described. A transmitting station generates a channel made up of a sum of subchannels wherein each subchannel or group of subchannels is amplified with a unique gain value that is varied in accordance with subchannel power control messages from the receiving station. The receiving station generates each subchannel power control message subsequent to monitoring and calculating metrics based on that received subchannel.

대표청구항 ▼

We claim: 1. A method for wireless communications comprising: receiving, by an apparatus, from a single remote station a reverse link signal that comprises a plurality of subchannel signals, wherein the plurality of subchannel signals are transmitted by the single remote station; comparing a frame error rate of each of said subchannel signals with a frame error rate threshold; and generating power control messages, based on the comparison, to be used by the single remote station to independently adjust transmit powers of more than one of said plurality of subchannel signals to different levels. 2. The method as recited in claim 1 further comprising: generating a plurality of quality threshold values, corresponding to said plurality of subchannels, in accordance with a measured frame error rate for each of said subchannel signals. 3. The method as recited in claim 1 wherein said generating includes generating at least a plurality of bits, wherein each bit represents a command to increase or decrease the transmit power of one of said subchannel signals by a predetermined amount. 4. The method as recited in claim 1 further comprising: generating a plurality of gain values; and applying each gain value to one of said plurality of subchannel signals for adjusting the transmit powers of said subchannel signals. 5. The method as recited in claim 1 further comprising: decoding each of said corresponding subchannel signals and determining frame errors in said subchannel signals. 6. An apparatus for wireless communication comprising: a receiver configured to receive from a single remote station a reverse link signal that comprises a plurality of subchannel signals, wherein the plurality of subchannel signals are transmitted by the single remote station; a threshold generator configured to provide a frame error rate threshold for at least one of the subchannel signals; a comparator configured to compare a frame error rate of at least one of the subchannel signals with the threshold for that subchannel signal; and a message generator configured to generate power control messages, based on the comparison, to be used by the single remote station to independently adjust transmit powers of more than one of the plurality of subchannel signals to different levels. 7. The apparatus for wireless communication of claim 6 wherein the message generator is configured to generate a plurality of quality threshold values, corresponding to the plurality of subchannels, in accordance with a measured frame error rate for each of the subchannel signals. 8. The apparatus for wireless communication of claim 6 wherein the message generator is configured to generate at least a plurality of bits, wherein each bit represents a command to increase or decrease the transmit power of one of the subchannel signals by a predetermined amount. 9. The apparatus for wireless communication of claim 6 further comprising: a decoder configured to decode each of the subchannel signals from the received reverse link signal; and wherein the comparator is configured to calculate the frame error rate in each of the subchannel signals. 10. An apparatus for wireless communication comprising: means for receiving from a single remote station a reverse link signal that comprises a plurality of subchannel signals, wherein the plurality of subchannel signals are transmitted by the single remote station; means for providing a frame error rate threshold for at least one of the subchannel signals; means for comparing a frame error rate of at least one of the subchannel signals with the threshold for that subchannel signal; and means for generating power control messages, based on the comparison, to be used by the single remote station to independently adjust transmit powers of more than one of the plurality of subchannel signals to different levels. 11. The apparatus for wireless communication of claim 10 further comprising means for generating a plurality of quality threshold values, corresponding to the plurality of subchannels, in accordance with a measured frame error rate for each of the subchannel signals. 12. The apparatus for wireless communication of claim 10 further comprising means for generating at least a plurality of bits, wherein each bit represents a command to increase or decrease the transmit power of one of the subchannel signals by a predetermined amount. 13. The apparatus for wireless communication of claim 10 further comprising means for decoding each of the subchannel signals from the received reverse link signal; and means for calculating the frame error rate in each of the subchannel signals. 14. A base station comprising: an antenna; a receiver configured to receive from a single remote station, via the antenna, a reverse link signal that comprises a plurality of subchannel signals, wherein the plurality of subchannel signals are transmitted by the single remote station; a threshold generator configured to provide a frame error rate threshold for at least one of the subchannel signals; a comparator configured to compare a frame error rate of at least one of the subchannel signals with the threshold for that subchannel signal; and a message generator configured to generate power control messages, based on the comparison, to be use by the single remote station to independently adjust transmit powers of more than one of the plurality of subchannel signals to different levels.

이 특허에 인용된 특허 (66)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Subchannel control loop 원문보기

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Subchannel control loop 원문보기

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