[특허]Traffic routing in small wireless data networks

[미국특허] Traffic routing in small wireless data networks 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04J-003/24 G06F-013/00
출원번호	US-0063198 (1998-04-20)
발명자 / 주소	Stiller Thomas Michael Stephens William Edward Newman Nisha Pauline
출원인 / 주소	Sarnoff Corporation
대리인 / 주소	Burke
인용정보	피인용 횟수 : 183 인용 특허 : 6

초록 ▼

A method of transmitting a message from a source node to a destination node in a small, wireless network having up to N nodes in which each message has appended thereto concise network configuration data which eliminates the need for routing protocols without adding significant overhead to the network communications. The method includes the steps of creating for each node a route table containing a count of the number of transmission hops necessary to reach each destination node and a node number of a neighboring node forming a next link in a chain of hops to each destination node, where the node number identifies a unique bit in an N bit address mask. Routing data is appended to the message data which includes an N bit destination word identifying the destination node or nodes, an N bit route word including a logical OR of the address mask of the relay node or nodes, and a route update message identifying what the current node knows about the network configuration. The number of N bit words in the route update message indicates a maximum number of transmission hops away from the current node that the current node could know about the network configuration. Upon receipt of such message data and its routing data, all receiving nodes update their route tables from the route update message. Then, if the receiving node is a destination node, the message data is processed. Also, if the receiving node is a relay node, then the receiving node replaces the route word and route update message with data from its updated route table and retransmits the message data with the destination word, the replaced route word and the replaced route update message as its routing data.

대표청구항 ▼

[ We claim:] [1.] A method of transmitting message data from a source node to a destination node in a wireless network having up to N nodes, where each node includes a transmitter and a receiver, comprising the steps of:creating for each node a route table containing a count of the number of transmission hops necessary to reach each remaining node in the wireless network and a node number of a neighboring node forming a next link in a chain of hops to each remaining node in the wireless network, said node number identifying a unique bit in an N bit address mask;appending, to message data to be transmitted from the source node to a destination node, an N bit destination word identifying the destination node or nodes, an N bit route word including a logical OR of the address mask of each node in the wireless network that is expected to retransmit the message data through said network, and a route update message identifying what the source node knows about the network configuration, the route update message having at least one N-bit connectivity word, the number of N-bit connectivity words in the route update message indicating a maximum number of transmission hops away from the source node that the source node could know about the network configuration;said source node transmitting said message data with said destination word, said route word and said route update message appended thereto;each node which receives the message data with said destination word, said route word and said route update message appended thereto updating its route table from said route update message;if said each node is identified in said destination word as a destination node, then said each node processing said message data, else ignoring said message data; andif said each node is identified in said route word as a relay node, then said each node replacing said route word and route update message with data from the updated route table of said each node and retransmitting said message data with said destination word, said replaced route word and said replaced route update message appended thereto.

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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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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Traffic routing in small wireless data networks 원문보기

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