JP2012130065A - ランダムアクセス接続を要求する方法及びそのための移動端末機 - Google Patents
ランダムアクセス接続を要求する方法及びそのための移動端末機 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/02—Hybrid access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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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
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0055—ZCZ [zero correlation zone]
- H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
- H04J13/0062—Zadoff-Chu
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
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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
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
【解決手段】個別シグネチャーを割り当てるオプションは、未使用空間がある場合に、ランダムシグネチャールートインデックスの未使用空間から個別シグネチャーを割り当てることと、追加的なシグネチャーが必要な場合に同一の時間/周波数リソースを用いる同一のルートインデックスから個別シグネチャーをさらに割り当てること、そしてプリアンブルの2セット両方からのコンテンションベースランダムアクセスプリアンブルからプリアンブルを予約することを含む。本発明は、また、個別シグネチャーが2セットのプリアンブルのそれぞれで予約されることを提案する。
【選択図】図4A
Description
NRset1=ceil(Nset1/64*(Nr-Nunused))であり、
NRset2=Nr-NRset1-Nunused
ここで、
Nset1 セット1のシグネチャーの数
Nset2 セット2のシグネチャーの数
Nunused ルートシーケンスで使用されないシグネチャーの数
NRset1 セット1で予約されたシグネチャーの数
NRset2 セット2で予約されたシグネチャーの数
Ceil 整数(upper integer)を表す。
Claims (2)
- 移動端末機と基地局の間のランダムアクセス接続を要求する方法であって、
前記移動端末機が、少なくとも一つのシグネチャールートシーケンスインデックス、巡回シフトパラメータ、及び第1シグネチャーセットと第2シグネチャーセットの間の境界を表すために使用されるシグネチャーセットの数を含む情報を受信し、
前記移動端末機が、前記少なくとも一つのシグネチャールートシーケンスインデックス及び前記巡回シフトパラメータによってランダムアクセスシグネチャーを用意し、
前記ランダムアクセスシグネチャーの少なくとも一つは、前記第1シグネチャーセットと関連し、前記ランダムアクセスシグネチャーの残りは、前記第2シグネチャーセットと関連し、
前記移動端末機が、メッセージサイズと無線状態に基づいて前記第1シグネチャーセット又は前記第2シグネチャーセットからランダムアクセスプリアンブルを選択すること、
を含む、ランダムアクセス接続要求方法。 - 基地局とのランダムアクセス接続を要求する移動端末機であって、
情報を送信する送信ユニットと、
情報を受信する受信ユニットと、
情報を表示するディスプレイユニットと、
ユーザからの入力を受信する入力ユニットと、
処理ユニットであって、
少なくとも一つのシグネチャールートシーケンスインデックス、巡回シフトパラメータ、及び第1シグネチャーセットと第2シグネチャーセットの間の境界を表すために使用するシグネチャーセットの数を含む情報を処理し、
前記少なくとも一つのシグネチャールートシーケンスインデックス及び前記巡回シフトパラメータによってランダムアクセスシグネチャーを用意し、
前記ランダムアクセスシグネチャーの少なくとも一つは、前記第1シグネチャーセットと関連し、前記ランダムアクセスシグネチャーの残りは、前記第2シグネチャーセットと関連し、
メッセージサイズと無線状態に基づいて前記第1シグネチャーセット又は前記第2シグネチャーセットからランダムアクセスプリアンブルを選択するように用意された処理ユニットと、
を含む移動端末機。
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US60/956,117 | 2007-08-15 |
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US (4) | US8305964B2 (ja) |
EP (2) | EP2188917B1 (ja) |
JP (2) | JP4944249B2 (ja) |
KR (1) | KR100984303B1 (ja) |
CN (1) | CN101785217B (ja) |
WO (2) | WO2009022878A2 (ja) |
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JP2014017765A (ja) * | 2012-07-11 | 2014-01-30 | Buffalo Inc | 通信システム、通信方法および中継装置 |
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US20130012219A1 (en) | 2013-01-10 |
EP2188917A2 (en) | 2010-05-26 |
US9131474B2 (en) | 2015-09-08 |
JP2010537472A (ja) | 2010-12-02 |
EP2188919B1 (en) | 2016-04-20 |
WO2009022878A3 (en) | 2009-04-02 |
CN101785217A (zh) | 2010-07-21 |
US8570992B2 (en) | 2013-10-29 |
EP2188917A4 (en) | 2011-03-02 |
CN101785217B (zh) | 2013-08-21 |
WO2009022881A3 (en) | 2009-04-16 |
US20110081912A1 (en) | 2011-04-07 |
US9363828B2 (en) | 2016-06-07 |
EP2188917B1 (en) | 2016-11-30 |
EP2188919A4 (en) | 2011-03-02 |
EP2188919A2 (en) | 2010-05-26 |
KR100984303B1 (ko) | 2010-09-30 |
JP5357285B2 (ja) | 2013-12-04 |
KR20100043272A (ko) | 2010-04-28 |
WO2009022878A2 (en) | 2009-02-19 |
US20140029548A1 (en) | 2014-01-30 |
US20110261752A1 (en) | 2011-10-27 |
WO2009022881A2 (en) | 2009-02-19 |
US8305964B2 (en) | 2012-11-06 |
JP4944249B2 (ja) | 2012-05-30 |
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