JP2006504348A - 通信システムにおける通信リンクの確立及び確実な確認メッセージの提供を行う方法及び装置 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
- H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1694—Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
- H04W40/06—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on characteristics of available antennas
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- H—ELECTRICITY
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- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
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Abstract
Description
本発明は、通信の技術分野に関し、より詳細には、指向性アンテナにより機能するモバイル通信システムのネットワークに関する。
[発明の背景]
時分割多元接続(TDMA)は、無線モバイル通信システム間の通信リンクを確立するのに利用されるアクセス方式の一例である。無線モバイル通信システム間の通信リンクは、タイムフレーム系列内で確立される。各タイムフレームは複数のタイムスロットに分割され、各無線モバイル通信システムに、少なくとも1つのタイムスロットが割当てられる。
[発明の概要]
本発明の課題は、無線モバイルアドホックネットワークにおける通信リンク要求に対する確実な確認メッセージの提供及びタイムスロットのスケジューリングを行うことである。
[好適実施例の詳細な説明]
以下において、本発明の好適実施例が図示される添付された図面を参照することにより、本発明がより詳細に説明される。しかしながら、本発明は、様々な形態により実現可能であり、ここで与えられる実施例に限定されるものとして解釈されるべきではない。むしろこれらの実施例は、本開示が詳細かつ完全なものとなり、本発明の範囲を当業者に完全に伝達できるように与えられたものである。本説明を通じて、同一の番号は同一の要素を表し、プライム表記は他の実施例において用いられる。レイヤや領域のサイズは、簡単化のため図面では強調されているかもしれない。
Claims (10)
- 複数のモバイルノードから構成される無線通信ネットワークであって、
前記複数のモバイルノードの各々は、
送受信機と、
前記送受信機に接続される指向性アンテナと、
前記送受信機に接続されるコントローラと、
から構成され、
前記コントローラは、
各近隣モバイルノードとの通信リンクを確立するため、各タイムフレームに対して各自の半永久タイムスロットをスケジューリングし、各タイムフレームに少なくとも1つの利用可能なタイムスロット残す第1タイムスロットユニットと、
リンク通信要求に基づき前記近隣モバイルノードとの通信リンクに供するため、前記少なくとも1つの利用可能なタイムスロットをスケジューリングする第2タイムスロットユニットと、
通信中に各近隣モバイルノードに前記指向性アンテナを向けるアンテナ照準ユニットと、
から構成され、
各通信リンクが送信モバイルノードと受信モバイルノードにより形成され、
前記送信モバイルノードは、前記受信モバイルノードにタイムスロットの要求を送信し、
前記受信モバイルノードは、前記送信モバイルノードに応答を送信し、
前記送信モバイルノードは、前記受信モバイルノードに確認を送信し、
前記受信モバイルノードは、前記確認が受信されていない場合、前記応答を再送する、
ことを特徴とするネットワーク。 - 請求項1記載の無線通信ネットワークであって、
前記応答は、前記要求が前記受信モバイルノードにより受付されたか示すことを特徴とするネットワーク。 - 請求項1記載の無線通信ネットワークであって、
前記送信モバイルノードは、前記応答が期間経過後に受信されていない場合、前記要求を再送することを特徴とするネットワーク。 - 請求項1記載の無線通信ネットワークであって、
前記要求は、所定の試行回数までしか送信されないことを特徴とするネットワーク。 - 請求項1記載の無線通信ネットワークであって、
前記コントローラは、前記通信リンクの個数がN未満である場合、前記半永久タイムスロットの1つを利用可能なタイムスロットとしてスケジューリングすることを特徴とするネットワーク。 - 各々が送受信機と、前記送受信機に接続される指向性アンテナと、前記送受信機と接続されるコントローラとからなる複数のモバイルノードに対し通信リンクを確立するための方法であって、
各モバイルノードに対し、
近隣モバイルノードとの通信リンクを確立するため、各タイムフレームに対して各自の半永久タイムスロットをスケジューリングし、各タイムフレームに少なくとも1つの利用可能なタイムスロット残すステップと、
リンク通信要求に基づき前記近隣モバイルノードとの通信リンクに供するため、前記少なくとも1つの利用可能なタイムスロットをスケジューリングするステップと、
通信中に各近隣モバイルノードに前記指向性アンテナを向けるステップと、
から構成され、
各通信リンクが送信モバイルノードと受信モバイルノードにより形成され、
前記送信モバイルノードは、前記受信モバイルノードにタイムスロットの要求を送信し、
前記受信モバイルノードは、前記要求の受信に応答して前記送信モバイルノードに応答を送信し、
前記送信モバイルノードは、前記応答の受信に応答して前記受信モバイルノードに確認を送信し、
前記受信モバイルノードは、前記確認が受信されていない場合、前記応答を再送する、
ことを特徴とする方法。 - 請求項6記載の方法であって、
前記応答は、前記要求が前記受信モバイルノードにより受付されたか示すことを特徴とする方法。 - 請求項7記載の方法であって、
前記送信モバイルノードは、前記応答が時間経過後に受信されていない場合、前記要求を再送することを特徴とする方法。 - 請求項6記載の方法であって、
前記半永久タイムスロットの1つは、前記通信リンクの個数がN未満である場合、利用可能なタイムスロットとしてスケジューリングされることを特徴とする方法。 - 請求項9記載の方法であって、
前記要求割当てされたタイムスロットは、前記通信リンクの個数がNに等しくされる場合、半永久タイムスロットにリスケジューリングされることを特徴とする方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/280,485 US6954449B2 (en) | 2002-01-10 | 2002-10-25 | Method and device for establishing communication links and providing reliable confirm messages in a communication system |
PCT/US2003/030928 WO2004040804A1 (en) | 2002-10-25 | 2003-10-01 | Method and device for establishing links in an ad hoc wireless system |
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Publication Number | Publication Date |
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JP2006504348A true JP2006504348A (ja) | 2006-02-02 |
Family
ID=32228749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004548339A Pending JP2006504348A (ja) | 2002-10-25 | 2003-10-01 | 通信システムにおける通信リンクの確立及び確実な確認メッセージの提供を行う方法及び装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6954449B2 (ja) |
EP (1) | EP1559211B1 (ja) |
JP (1) | JP2006504348A (ja) |
KR (1) | KR100677671B1 (ja) |
CN (1) | CN1717879A (ja) |
AU (1) | AU2003301729A1 (ja) |
CA (1) | CA2502859A1 (ja) |
WO (1) | WO2004040804A1 (ja) |
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AU2003301729A1 (en) | 2004-05-25 |
EP1559211A1 (en) | 2005-08-03 |
US6954449B2 (en) | 2005-10-11 |
CN1717879A (zh) | 2006-01-04 |
EP1559211A4 (en) | 2009-07-29 |
CA2502859A1 (en) | 2004-05-13 |
KR20050059304A (ko) | 2005-06-17 |
US20030214969A1 (en) | 2003-11-20 |
WO2004040804A1 (en) | 2004-05-13 |
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