KR20020012264A - 메시형 무선 네트워크의 패킷 데이터용 통신 프로토콜 - Google Patents
메시형 무선 네트워크의 패킷 데이터용 통신 프로토콜 Download PDFInfo
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- KR20020012264A KR20020012264A KR1020017015785A KR20017015785A KR20020012264A KR 20020012264 A KR20020012264 A KR 20020012264A KR 1020017015785 A KR1020017015785 A KR 1020017015785A KR 20017015785 A KR20017015785 A KR 20017015785A KR 20020012264 A KR20020012264 A KR 20020012264A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
| RTS 메시지(패킷내에서) | 비트 |
| 512 비트 증가내의 비트의 요청 개수(0-1024*512, 즉 128Mbps에서의0-3.9 msec) | 10 |
| 갭 1:[개시, 정지] CTS 도달의 종료로부터 오프셋(1/8의 마이크로초의 세분성과 함께 0.-4.096 msec) | 30 |
| 갭 2: [개시, 정지] CTS 도달의 종료로부터 오프셋 | 30 |
| 갭 3: [개시, 정지] CTS 도달의 종료로부터 오프셋 | 30 |
| 스케줄 종료 | 15 |
| 합계 | 115 |
| CTS 메시지(패킷내에서) | 비트 |
| 갭 1:[개시, 정지] CTS 도달의 종료로부터 오프셋(1/8의 마이크로초의 세분성과 함께 0.-4.096 msec) | 30 |
| 갭 2: [개시, 정지] CTS 도달의 종료로부터 오프셋 | 30 |
| 갭 3: [개시, 정지] CTS 도달의 종료로부터 오프셋 | 30 |
| 갭 4: [개시, 정지] CTS 도달의 종료로부터 오프셋 | 30 |
| 합계 | 120 |
Claims (12)
- 통신 노드 사이의 가시선 장치를 갖는 복수의 상호 결합 노드를 갖는 형태의 무선 패킷의 무선 메시형 통신 시스템에 있어서, 상기 복수의 상호 결합 노드들 사이의 통신 방법은,시간을 공지의 길이의 동기식 프레임으로 분할하는 단계와;각각의 프레임 내에서, 제어 정보에 대해 시간 슬롯을 제공하여, 동기식 제어 채널을 제공하는 단계와;통신 노드 사이에서, 각각의 통신 노드에서의 제어 정보를 사용하고, 제어 채널의 시간 슬롯 사이에 데이터의 비동기식 전송 또는 수신을 스케줄링하여, 데이터 채널을 제공하는 단계를 포함하는 것을 특징으로 하는 통신 방법.
- 제1항에 있어서, 각각의 노드가 스케줄을 갖고, 2 개의 노드, 즉 개시자 노드 및 수신자 노드 사이의 제어 채널에서, 상기 제어 채널은 상기 수신자에게 RTS 메시지를 전송하기 위한 요청과, 스케줄 내의 개시자의 스케줄되지 않은 시간에 대하여 수신자에게 전달하는 부가적인 데이터를 제공하는 개시자와, 상기 개시자에게 제공된 CTS(clear to send) 메시지 내의 스케줄되지 않은 시간의 개시자의 제공을 기초하여 상호 동의될 수 있는 시간의 전송 스케줄을 개시자에게 허용하는 수신자를 포함하는 통신 프로토콜을 더 갖는 것인 통신 방법.
- 제2항에 있어서, RTS(request to send) 메시지 내의 스케줄되지 않은 시간의 스케줄을 상기 개시자에게 제공된 수신자의 CTS(clear to send) 메시지에 첨부하는 단계와; 상기 개시자에 의해 상기 CTS 메시지를 사용하는 스케줄되지 않은 시간과 일치하는 시간에 대한 전송 스케줄을 수신자에게 허용하는 단계를 더 포함하는 것인 통신 방법.
- 제1항에 있어서, 각각의 노드가 이용 가능한 시간을 예고하여 데이터 패킷을 전송하는 단계를 더 포함하는 것인 통신 방법.
- 제1항에 있어서, 각각의 노드가 시간을 미리 할당하여 상기 인접 노드로부터 데이터 패킷을 수신하는 단계를 더 포함하는 것인 통신 방법.
- 제1항에 있어서, 각각의 프레임에서 상기 제어 채널을 주기적으로 반복함으로써 정의되는 것인 통신 방법.
- 제1항에 있어서, 제어 정보용 상기 제공된 시간 슬롯과 스케줄링하기 위해 각각의 통신 노드에서의 상기 사용된 제어 정보는 상기 통신 노드 사이의 반 이중 무선 통신을 제공하는 단계와, 각각의 노드로부터 데이터 채널 가운데의 제어 채널 마이크로슬롯의 스케줄을 전달하여, 각각의 노드가 통신하는 모든 노드의 마이크로슬롯의 스케줄을 갖는 단계와, 제1의 노드에서, 요청 노드에 의한 요청을 나타내는이용 가능한 갭의 스케줄을 포함하는 RTS 메시지를 기다리는 각각의 마이크로슬롯내의 제어 채널의 데이터를 판독하는 단계와, 제2 노드에서, 제1 노드와 가시선의 관계에서, 제1 노드의 RTS 메시지를 판독하고, 스케줄에 동의한 이용 가능한 갭의스케줄을 포함하는 CTS 메시지로 응답하여, 제1 노드의 요청에 수신하고 또한 요청된 데이터를 제공하기 위해 이용 가능한 갭의 스케줄을 갖는 RTS 메시지를 제1 노드에 전송하는 단계와, 상기 제1 노드에서, 상기 요청된 데이터를 수신하기 위해 이용 가능한 갭의 스케줄에 동의하는 CTS 메시지를 갖는 제2 노드의 RTS 메시지에 응답하는 단계를 포함하는 것인 통신 방법.
- 제7항에 있어서, 제1 노드와 제2 노드 사이에 방향성의 스위칭 가능한 안테나를 사용하는 것을 더 포함하는 것인 통신 방법.
- 제7항에 있어서, 제3의 노드에서, 요청 노드에 의해 요청되는 데이터를 나타내는 마이크로슬롯 사이의 이용 가능한 갭의 스케줄을 포함하는 RTS 메시지를 대기하는 각각의 마이크로슬롯 내의 제어 채널의 데이터를 판독하는 단계와, 제2 노드에서 제3의 노드에 가시선의 관계로, 제3 노드의 RTS 메시지를 판독하고 스케줄에 동의된 마이크로슬롯 사이의 이용 가능한 갭의 스케줄을 포함하는 CTS 메시지로 응답하여, 요청된 데이터의 요청을 수신하고 또한 상기 요청된 데이터를 제공하기 위해 이용 가능한 갭의 스케줄을 갖는 RTS 메시지를 제3 노드에 전송하는 단계와, 제3 노드에서, 상기 요청된 데이터를 수신하기 위해 이용 가능한 갭의 스케줄에 동의하는 CTS 메시지를 제2 노드의 RTS 메시지에 응답하는 단계를 더 포함하는 것인 통신 방법.
- 제7항에 있어서, 상기 RTS 메시지 내의 갭의 개수는 적어도 2 개인 것인 통신 방법.
- 제7항에 있어서, 제어 채널 마이크로슬롯의 프레시 스케줄은 상호간에 통신하는 노드의 승인 또는 이탈 시에 각각의 노드로부터 통신하는 것인 통신 방법.
- 제7항에 있어서, 상기 갭의 구간이 최소로 지정된 구간보다 작다면, 그 갭은 무시되는 것인 통신 방법.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/328,105 | 1999-06-08 | ||
| US09/328,105 US6363062B1 (en) | 1999-06-08 | 1999-06-08 | Communications protocol for packet data particularly in mesh topology wireless networks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020012264A true KR20020012264A (ko) | 2002-02-15 |
| KR100447302B1 KR100447302B1 (ko) | 2004-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-7015785A Expired - Fee Related KR100447302B1 (ko) | 1999-06-08 | 2000-06-05 | 메시형 무선 네트워크의 패킷 데이터용 통신 프로토콜 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6363062B1 (ko) |
| EP (1) | EP1059773B1 (ko) |
| JP (1) | JP2003501941A (ko) |
| KR (1) | KR100447302B1 (ko) |
| CN (1) | CN1145278C (ko) |
| AT (1) | ATE397341T1 (ko) |
| CA (1) | CA2376183A1 (ko) |
| DE (1) | DE60039004D1 (ko) |
| IL (2) | IL146722A0 (ko) |
| TW (1) | TW484277B (ko) |
| WO (1) | WO2000076088A1 (ko) |
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| KR100716154B1 (ko) * | 2002-10-25 | 2007-05-10 | 해리스 코포레이션 | 통신 시스템에서 병렬 스케줄 작동으로 통신 링크를설치하는 방법 및 장치 |
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1999
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- 2000-01-28 EP EP00101618A patent/EP1059773B1/en not_active Expired - Lifetime
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- 2000-06-05 CA CA002376183A patent/CA2376183A1/en not_active Abandoned
- 2000-06-05 JP JP2001502248A patent/JP2003501941A/ja active Pending
- 2000-06-05 KR KR10-2001-7015785A patent/KR100447302B1/ko not_active Expired - Fee Related
- 2000-06-05 WO PCT/US2000/015482 patent/WO2000076088A1/en not_active Ceased
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- 2000-06-08 TW TW089111129A patent/TW484277B/zh not_active IP Right Cessation
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100716154B1 (ko) * | 2002-10-25 | 2007-05-10 | 해리스 코포레이션 | 통신 시스템에서 병렬 스케줄 작동으로 통신 링크를설치하는 방법 및 장치 |
| KR100532992B1 (ko) * | 2002-11-15 | 2005-12-02 | 엘지전자 주식회사 | 고속 무선 lan시스템의 타이밍제어장치 및 방법 |
| KR100815073B1 (ko) * | 2005-08-24 | 2008-03-20 | 모토로라 인코포레이티드 | 무선 메시 네트워크에서 동작하는 메시 포인트들에 대한타이밍 동기화 및 비컨 생성 |
| KR100800997B1 (ko) * | 2005-10-13 | 2008-02-11 | 삼성전자주식회사 | 통신 스케쥴링 장치 및 방법 |
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| Publication number | Publication date |
|---|---|
| EP1059773A2 (en) | 2000-12-13 |
| US6363062B1 (en) | 2002-03-26 |
| CN1354924A (zh) | 2002-06-19 |
| DE60039004D1 (de) | 2008-07-10 |
| CA2376183A1 (en) | 2000-12-14 |
| EP1059773B1 (en) | 2008-05-28 |
| ATE397341T1 (de) | 2008-06-15 |
| CN1145278C (zh) | 2004-04-07 |
| IL146722A (en) | 2007-03-08 |
| WO2000076088A1 (en) | 2000-12-14 |
| KR100447302B1 (ko) | 2004-09-07 |
| TW484277B (en) | 2002-04-21 |
| IL146722A0 (en) | 2002-07-25 |
| EP1059773A3 (en) | 2003-10-22 |
| JP2003501941A (ja) | 2003-01-14 |
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