KR100322019B1 - 부호분할 다중접속 단말기의 전송률 검출 방법 - Google Patents
부호분할 다중접속 단말기의 전송률 검출 방법 Download PDFInfo
- Publication number
- KR100322019B1 KR100322019B1 KR1019990004611A KR19990004611A KR100322019B1 KR 100322019 B1 KR100322019 B1 KR 100322019B1 KR 1019990004611 A KR1019990004611 A KR 1019990004611A KR 19990004611 A KR19990004611 A KR 19990004611A KR 100322019 B1 KR100322019 B1 KR 100322019B1
- Authority
- KR
- South Korea
- Prior art keywords
- rate
- error
- received
- signal
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
- H04B2201/70705—Rate detection
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Error Detection And Correction (AREA)
Abstract
Description
n | 1 | 2 | 3 | 4 |
전송률 | 9.6K | 4.8K | 2.4K | 1.2K |
Claims (2)
- 부호분할 다중접속 단말기의 전송률 검출 방법에 있어서,데이터 프레임이 변복조기로부터 디인터리버에 수신되면 수신된 한 프레임의 신호를 임의의 전송률(n)로 디코딩 및 엔코딩하는 제 1 과정과,상기 엔코딩한 신호와 상기 변복조기로부터 수신된 신호를 비교하여 오류가 임계치 이하인지 검사하는 제 2 과정과,상기 검사결과 오류가 임계치 이하이면 상기 전송률을 보코더에 전송하고 수신이 완료되었는지 체크하여 수신이 완료되지 않았으면 상기 제 1 과정으로 돌아가는 제 3 과정과,상기 검사결과 오류가 임계치 이하가 아니면 현재의 프레임을 디코딩 및 엔코딩하기 위하여 사용한 전송률이 아닌 다른 전송률로 설정하고 상기 제 1 과정으로 돌아가는 제 4 과정으로 이루어짐을 특징으로 하는 방법.
- 제1항에 있어서,상기 검사결과 오류가 임계치 이하가 아니면 상기 수신된 한 프레임의 신호를 각각의 전송률로 디코딩 및 엔코딩하는 제 5 과정과,상기 엔코딩한 각각의 신호와 상기 변복조기로부터 수신된 신호를 비교하여 최소오류 발생 전송률을 검출하여 상기 보코더로 전송하는 제 6 과정과,상기 변복조기로부터 수신이 완료되었는지 체크하여 완료되지 않았으면 다음에 수신된 프레임을 상기 검출한 전송률로 디코딩 및 엔코딩하는 제 7 과정과,상기 수신된 프레임과 상기 엔코딩된 신호를 비교하여 오류가 임계치 이하이면 상기 전송률을 상기 보코더로 전송하고 상기 제 7 과정으로 돌아가는 제 8 과정을 더 포함함을 특징으로 하는 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990004611A KR100322019B1 (ko) | 1999-02-10 | 1999-02-10 | 부호분할 다중접속 단말기의 전송률 검출 방법 |
US09/501,187 US6785298B1 (en) | 1999-02-10 | 2000-02-10 | Method for detecting transmission rate of code division multiple access (CDMA) type communication terminals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990004611A KR100322019B1 (ko) | 1999-02-10 | 1999-02-10 | 부호분할 다중접속 단말기의 전송률 검출 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000055788A KR20000055788A (ko) | 2000-09-15 |
KR100322019B1 true KR100322019B1 (ko) | 2002-02-04 |
Family
ID=19573972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990004611A Expired - Fee Related KR100322019B1 (ko) | 1999-02-10 | 1999-02-10 | 부호분할 다중접속 단말기의 전송률 검출 방법 |
Country Status (2)
Country | Link |
---|---|
US (1) | US6785298B1 (ko) |
KR (1) | KR100322019B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100440055B1 (ko) * | 2002-05-02 | 2004-07-14 | 엘지전자 주식회사 | 보코더 및 그 보코더를 이용한 비트 오류율 시험 방법 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030043440A (ko) * | 2001-11-28 | 2003-06-02 | 삼성전자주식회사 | 이동통신 시스템의 통신 제어방법 |
US7095710B2 (en) * | 2001-12-21 | 2006-08-22 | Qualcomm | Decoding using walsh space information |
US8179876B2 (en) * | 2004-12-22 | 2012-05-15 | Qualcomm Incorporated | Multiple modulation technique for use in a communication system |
US20060187833A1 (en) * | 2005-02-23 | 2006-08-24 | Memory Matrix, Inc. | Systems and methods for upload bandwidth management |
TW201429228A (zh) * | 2013-01-14 | 2014-07-16 | Hon Hai Prec Ind Co Ltd | 影片傳輸系統及方法 |
US9892083B1 (en) * | 2014-03-07 | 2018-02-13 | Marvell Israel (M.I.S.L) Ltd. | Method and apparatus for controlling a rate of transmitting data units to a processing core |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5566206A (en) * | 1993-06-18 | 1996-10-15 | Qualcomm Incorporated | Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver |
US5751725A (en) * | 1996-10-18 | 1998-05-12 | Qualcomm Incorporated | Method and apparatus for determining the rate of received data in a variable rate communication system |
US6108372A (en) * | 1996-10-30 | 2000-08-22 | Qualcomm Inc. | Method and apparatus for decoding variable rate data using hypothesis testing to determine data rate |
US6147964A (en) * | 1998-05-07 | 2000-11-14 | Qualcomm Inc. | Method and apparatus for performing rate determination using orthogonal rate-dependent walsh covering codes |
-
1999
- 1999-02-10 KR KR1019990004611A patent/KR100322019B1/ko not_active Expired - Fee Related
-
2000
- 2000-02-10 US US09/501,187 patent/US6785298B1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100440055B1 (ko) * | 2002-05-02 | 2004-07-14 | 엘지전자 주식회사 | 보코더 및 그 보코더를 이용한 비트 오류율 시험 방법 |
Also Published As
Publication number | Publication date |
---|---|
US6785298B1 (en) | 2004-08-31 |
KR20000055788A (ko) | 2000-09-15 |
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