[특허]Method and apparatus for compressing and transmitting ultra high speed data

Method and apparatus for compressing and transmitting ultra high speed data 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/212 H04W-072/04 H04B-014/04 H04L-001/00 H04L-005/06 H04L-025/49 H04W-028/06 H03M-007/30 H04W-024/00 H04W-074/04 H04W-088/08
출원번호	US-0959314 (2013-08-05)
등록번호	US-9295057 (2016-03-22)
발명자 / 주소	Kurtz, Scott David
출원인 / 주소	InterDigital Technology Corporation
대리인 / 주소	Volpe and Koenig, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 98

초록 ▼

Voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. An Ultra-High Speed Codec supports voiceband modem and FAX transmissions up to 14.4 kb/s and operates using four 16-phase RF slots. Because these codecs transmit information over several RF slots which can be contiguous, the slots within RF communication channels are dynamically allocated. The Dynamic Time slot/Bandwidth Allocation feature detects and monitors the data transmission and forms a data channel from the necessary number of slots.

대표청구항 ▼

1. A wireless communication unit, the communication unit comprising: circuitry configured to: generate data for transmission to a second communication unit;encode the data using a codec selected from a plurality of codecs, wherein each of the plurality of codecs is associated with a data rate;forward error correction (FEC) encode the encoded data according to a selected type of FEC encoding;modulate the FEC encoded data according to a selected modulation scheme; andtransmit the modulated FEC encoded data to the second communication unit in at least one time slot;wherein the selected modulation scheme, and the selected type of FEC encoding are based on the selected codec. 2. The communication unit of claim 1, wherein the circuitry is further configured to encode the data using excitation linear prediction. 3. The communication unit of claim 1, wherein the selected modulation scheme is eight phase shift keying (8-PSK). 4. The communication unit of claim 1, wherein the communication unit is a mobile unit. 5. The communication unit of claim 1, wherein the communication unit is a network node. 6. The communication unit of claim 1, wherein the modulated FEC encoded date is transmitted in multiple time slots of a time division multiple access (TDMA) frame. 7. The communication unit of claim 6, wherein a number of time slots used for transmission of the modulated FEC encoded data is based on the selected codec. 8. The communication unit of claim 1, wherein the selected codec is based on channel conditions. 9. The communication unit of claim 1, wherein the channel conditions include an availability of time slots for assignment. 10. A method for use by a wireless communication unit, the method comprising: generating data for transmission to a second communication unit;encoding the data using a codec selected from a plurality of codecs, wherein each of the plurality of codecs is associated with a data rate;forward error correction encoding the encoded data according to a selected type of FEC encoding;modulating the FEC encoded data according to a selected modulation scheme; andtransmitting the modulated FEC encoded data to a second communication unit in at least one time slot;wherein the selected modulation scheme, and the selected type of FEC encoding are based on the selected codec. 11. The method of claim 10, wherein the data is encoded using excitation linear prediction. 12. The method of claim 10, wherein the selected modulation scheme is eight phase shift keying (8-PSK). 13. The method of claim 10, wherein the communication unit is a mobile unit. 14. The method of claim 10, wherein the communication unit is a network node. 15. The method of claim 10, wherein the modulated FEC encoded date is transmitted in multiple time slots of a time division multiple access (TDMA) frame. 16. The method of claim 15, wherein a number of time slots used for transmission of the modulated FEC encoded data is based on the selected codec. 17. The method of claim 10, wherein the selected codec is based on channel conditions. 18. The method of claim 10, wherein the channel conditions include an availability of time slots for assignment.

이 특허에 인용된 특허 (98)

Weirich, Andreas H., ADPCM Encoder/decoder with zero code suppression.
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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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Method and apparatus for compressing and transmitting ultra high speed data 원문보기

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Method and apparatus for compressing and transmitting ultra high speed data 원문보기

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