JP4763828B2 - ピアツウピア通信 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/10—Open loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
-
- 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
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
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- H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
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- H—ELECTRICITY
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- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Description
本特許出願は、2003年11月21日に出願された仮出願第60/523,989号(“PEER-TO-PEER COMMUNICATIONS”)に対して優先権を主張しており、第60/523,989号は、本発明の譲受人に譲渡され、それによって参照によって本明細書にとくに取り入れられている。
本出願は、無線通信、とくに、受信可能領域内モードおよび受信可能領域外モードを支援する多重アクセスネットワークのアクセス端末間のピアツウピア通信に関する。
受信可能領域内の動作は、AN104によって現在サービスされている領域内で、AN104によって使用されていて、現在許可されている周波数帯を使用して行なわれるピアツウピア通信を指す。この場合に、ATは、ピアツウピア通信を最初に設定するのを、AN104によって支援され、その結果、現在のセルラ呼をピアツウピアモードへ遷移し、さらに加えて、ピアツウピアの呼中のAT106からの送信を電力制御し得る。AN104は、イベントまたはトリガが行われるときに、ピアツウピア通信の接続および設定を行う。可能なトリガは、AN104によって種々の考慮すべき事柄に基づいて実施され、1)AT106の位置、2)AT106が受信可能領域から出ること、3)ネットワーク100のローディング、4)ピアツウピア通信の参加者の近接、5)多数のAT106のアクティブな組(Active Set, AS)のエントリのオーバーラップ、または6)AN104の裁量を含み得るが、これらに限定されない。その後で、AN104はピアツウピア通信を維持する。設定およびシグナリングは、CDMA2000およびTIA/EIA/IS−856の高速パケットデータ(High Rate Packet Data, HRPD)ネットワークに使用されているものと同じであり得る。
CDM構造を使用して、1つのATは、ピアツウピアの相手である他のATに送信する。送信側ATは、ANの義務を行うように効果的に進められる。このようにして、送信側ATは、ピアツウピアの相手の全てから、電力制御を受信する。ピアツウピアの相手は、送信側ATのみから受信する。図7は、送信方式を示している。ユーザ#1は、送信側ATであり、ANの役割をする。ユーザ#1は、送信スロットの3/4の間に送信し、送信スロットの1/4の間に受信する。ピアツウピアの相手は、送信スロットの1/4の間に、パイロットおよび電力制御情報を送信する。ピアツウピアの相手からの送信は、符号分割多重化される。
TDM構造は、図4に示されており、参加者の各々は、送信スロットの指定された部分の間に送信し得る。参加者が送信するとき、送信は、ペイロード(すなわち、データ)、MAC層シグナリング情報、およびパイロット信号を含み、さらに加えて、保護時間(GT)を許容する。MAC層のシグナリングは、電力制御コマンドを含む。
受信可能領域外、または許可されていない帯域における動作は、ANなしに行われる。この状況では、グループ内のATは、ピアツウピア通信を自律的に非同期に開始し、維持する。受信可能領域外および許可されていない帯域の動作のために、最小の変更を取り入れることができる。開始は、共通のPNロングコードマスクに基づく。
本明細書に記載されている実施形態の実施は、アクセス端末のRF送信および受信回路の設計を提示するために、ハードウェアの変更を必要とし得る。再設計に対する1つのアプローチでは、多数の受信チェーンを保持するように、新しい受信チェーンを実施し得る。これは、要求される性能を与えるが、ハードウェアに追加のコストおよび複雑さをもたらす。
つ以上のピアのアクセス端末からの復調されたRLのI/Qベースバンド信号が生成される。この回路条件は、アクセス端末とそのピアとの間の通信に使用され、例えば、PTP電力制御コマンドをアクセス端末に与えるのに使用され得る。
Claims (17)
- 複数のアクセス端末(106)を取り扱うセルラネットワークの1つ以上のアクセスノード(104)を含む多重アクセスネットワークを操作する方法であって、
アクセスノード(104)は、
ピアツウピアモードが通信に使用可能であることを判断することと、
第1のピア・アクセス端末をピアツウピア動作に遷移させるための設定を開始すること、のステップを実行し、そして、
前記第1のアクセス端末(106)は、
前記セルラネットワーク(100)の逆方向リンク周波数上で少なくとも1つの第2のピア・アクセス端末(106)に対してピアツウピア通信(110)を送信することと、
前記セルラネットワーク(100)の逆方向リンク周波数上で少なくとも1つの第2のピア・アクセス端末(106)からピアツウピア通信(110)を受信することと、
前記セルラネットワークの順方向リンク周波数上でアクセスノード(104)から、および前記セルラネットワークの逆方向リンク周波数上で少なくとも1つの第2のアクセス端末(106)から閉ループ電力制御のための電力制御コマンドを受信することと、
前記アクセスノード(104)から受信された電力制御コマンドと、第2のアクセス端末(106)から受信された電力制御コマンドとに基づいて、自端末の閉ループ電力制御を行うこと
のステップを実行する、方法。 - ピアツウピア通信を受信すること、および送信することが送信スロットにおいて生じる、請求項1の方法。
- 前記アクセス端末(106)は、N個のピア・アクセス端末の中の1つの第1のピア・アクセス端末(106)、ただしN≧2、であり、そして、前記送信スロットはN個の部分へ分割され、そして、
前記第1のアクセス端末(106)は、
前記送信スロットの第1の部分の間にピアツウピア通信(110)を送信することと、
前記送信スロットの少なくとも1つの第2の部分の間に前記第2のピア・アクセス端末(106)からピアツウピア通信(110)を受信すること、のステップを実行する、請求項2の方法。 - 前記アクセス端末(106)は、N個のピア・アクセス端末の中の1つの第1のピア・アクセス端末(106)、ただしN≧2、であり、および、前記送信スロットは、第1の部分と第2の部分に分割され、アクセス符号分割符号は、残りのN−1個のピア・アクセス端末の各々に割り当てられ、そして、
前記第1のアクセス端末(106)は、
前記送信スロットの第1の部分の間にピアツウピア通信(110)を送信することと、
前記第2のピア・アクセス端末に割り当てられた符号上で前記送信スロットの第2の部分の間に前記第2のアクセス端末(106)からピアツウピア通信(110)を受信すること、のステップを実行する、請求項2の方法。 - 前記第1の部分は、前記送信スロットの4分の3であり、そして、前記第2の部分は、前記送信スロットの4分の1である、請求項4の方法。
- 前記第1のアクセス端末は、
ピアツウピア送信に使用可能なアクセスノードから使用可能なチャネルリストを受信することと、
送信のために、前記チャネルリストから最良のチャネルを選択すること、のステップを実行する、請求項1の方法。 - 前記第1のアクセス端末は、
アクセスノードから、ピアツウピア送信に使用可能なチャネルの好ましいローミングリストを受信することと、
ピアツウピアチャネルの使用可能性を判断すること、
のステップを実行する、請求項1の方法。 - ピアツウピアチャネルの使用可能性を判断することは、
基地局の識別子(ID)を使用して、ピアツウピアチャネルの使用可能性を判断することを含む、請求項7の方法。 - 前記第1のアクセス端末は、
各ピア・アクセス端末の識別子を連結することにより値を形成することと、
ピアツウピア通信に使用可能な周波数チャネルを出力するために前記値にハッシュ関数を適用すること、のステップを実行する、請求項1の方法。 - 前記第1のアクセス端末は、
ピアツウピア通信に使用可能な周波数チャネル上でピアツウピア通信を開始することと、
ピアツウピア通信に使用可能な別のチャネルへ移るために前記ピア・アクセス端末間でネゴシエートすること、
のステップを実行する、請求項9の方法。 - 前記値を形成するステップは、
ピアグループの全てのメンバーの識別子を連結することによって前記値を形成することを含む、請求項10の方法。 - 複数のアクセス端末(106)を扱うセルラネットワークの1つ以上のアクセスノード(104)を含む多重アクセスネットワークであって、
アクセスノード(104)は、
ピアツウピアモードが通信に使用可能であることを判断することと、
第1のピア・アクセス端末をピアツウピア動作に遷移させる設定を開始すること、
のための手段を含み、そして、
前記第1のアクセス端末(106)は、
前記セルラネットワーク(100)の逆方向リンク周波数上で少なくとも1つのピア・アクセス端末(106)にピアツウピア通信(110)を送信することと、
前記セルラネットワーク(100)の逆方向リンク周波数上で少なくとも1つのピア・アクセス端末(106)からピアツウピア通信(110)を受信することと、
前記セルラネットワークの順方向リンク周波数上でアクセスノード(104)から、および前記セルラネットワークの逆方向リンク周波数上で少なくとも1つの第2のアクセス端末(106)から、閉ループ電力制御のための電力制御コマンドを受信することと、
前記アクセスノード(104)から受信された電力制御コマンドと、第2のアクセス端末(106)から受信された電力制御コマンドとに基づいて、自端末の閉ループ電力制御を行うこと
のための手段を含む、多重アクセスネットワーク。 - 前記第1のアクセス端末(106)は、
ピアツウピア送信に使用可能な前記アクセスノードから使用可能なチャネルリストを受信することと、
送信のために、前記チャネルリストから最良のチャネルを選択すること、
のための手段を含む、請求項12の多重アクセスネットワーク。 - 前記第1のアクセス端末(106)は、
前記アクセスノードからピアツウピア送信(110)に使用可能なチャネルの好ましいローミングリストを受信することと、
ピアツウピアチャネルの使用可能性を判断すること、
のための手段を含む、請求項12の多重アクセスネットワーク。 - 前記第1のアクセス端末(106)は、
各ピア・アクセス端末の識別子を連結することによって値を形成することと、
ピアツウピア通信に使用可能な周波数チャネルを出力するために、前記値にハッシュ関数を適用すること、
のための手段を含む、請求項12の多重アクセスネットワーク。 - 前記第1のアクセス端末(106)は、
ピアツウピア通信に使用可能な周波数チャネル上でピアツウピア通信を開始することと、
ピアツウピア通信に使用可能な別のチャネルへ移るために、ピア・アクセス端末の間でネゴシエートすること、
のための手段を含む、請求項15の多重アクセスネットワーク。 - 前記第1のアクセス端末(106)は、
ピアグループの全てのメンバーの識別子を連結することによって前記値を形成することのための手段を含む、請求項16の多重アクセスネットワーク。
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Application Number | Priority Date | Filing Date | Title |
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US52398903P | 2003-11-21 | 2003-11-21 | |
US60/523,989 | 2003-11-21 | ||
US10/954,846 US7539507B2 (en) | 2003-11-21 | 2004-09-29 | Peer-to-peer communications |
US10/954,846 | 2004-09-29 |
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JP2006541399A Division JP4584933B2 (ja) | 2003-11-21 | 2004-11-19 | ピアツウピア通信 |
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JP2010114908A JP2010114908A (ja) | 2010-05-20 |
JP4763828B2 true JP4763828B2 (ja) | 2011-08-31 |
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JP2006541399A Active JP4584933B2 (ja) | 2003-11-21 | 2004-11-19 | ピアツウピア通信 |
JP2009274973A Active JP4763828B2 (ja) | 2003-11-21 | 2009-12-02 | ピアツウピア通信 |
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US (2) | US7539507B2 (ja) |
EP (3) | EP2288222B1 (ja) |
JP (2) | JP4584933B2 (ja) |
KR (2) | KR100813710B1 (ja) |
CN (2) | CN101790227B (ja) |
AT (1) | ATE453252T1 (ja) |
AU (2) | AU2004310686C1 (ja) |
BR (1) | BRPI0416780B1 (ja) |
CA (3) | CA2546755C (ja) |
DE (1) | DE602004024823D1 (ja) |
ES (2) | ES2342072T3 (ja) |
HK (2) | HK1147004A1 (ja) |
IL (2) | IL175691A (ja) |
MX (1) | MXPA06005707A (ja) |
PL (1) | PL1690386T3 (ja) |
RU (1) | RU2351086C2 (ja) |
TW (1) | TWI356617B (ja) |
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