JP4720838B2 - 通信装置および方法、情報処理装置および方法 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—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
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/265—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the quality of service QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0028—Formatting
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
- H04L1/0035—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter evaluation of received explicit signalling
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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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
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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
- H04W52/08—Closed loop power control
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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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
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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
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
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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
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
- H04W52/60—Signalisation aspects of the TPC commands, e.g. frame structure using different transmission rates for TPC commands
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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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1874—Buffer management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- 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
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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
- H04W52/143—Downlink power control
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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
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
I=1/N×Σ(p[n]−Pave)2
Pave=1/N×Σp[n]
SIRDPCH=S/I
・・・(1)
I=1/M×Σ(c[m]−Cave)2
Cave=1/N×Σc[m]
SIRDSCH=S/I×Poffset
・・・(2)
・・・(3)
・・・(4)
SIR=SIRDSCH (但し、|△SIR|≦thの場合)
・・・(5)
・・・(6)
・・・(7)
・・・(8)
THDOWN=THDOWN−△TH
・・・(9)
・・・(10)
THDOWN=THDOWN+△TH
・・・(11)
Claims (13)
- 通信相手の現在の受信品質を求める情報処理装置から受信した受信信号に基づいて、所定のチャンネルの品質を示すチャンネル品質情報を生成するチャンネル品質情報生成手段と、
前記情報処理装置から受信した受信信号に基づいて、前記情報処理装置の送信電力を制御する送信電力制御情報を生成する送信電力制御情報生成手段と、
前記チャンネル品質情報を、前記情報処理装置に対して、第1の周期で送信するチャンネル品質情報送信手段と、
前記送信電力制御情報を、前記情報処理装置に対して、前記第1の周期よりも短い第2の周期で送信する送信電力制御情報送信手段と、
前記情報処理装置から、前記第1の周期を指定する周期指定情報を受信する周期指定情報受信手段と、
前記周期指定情報受信手段が受信した前記周期指定情報に応じて、前記第1の周期を設定する送信周期設定手段と
を備え、
前記送信周期設定手段は、ソフトハンドオフ状態でない場合に、前記第1の周期を、ソフトハンドオフ状態である場合と異なる周期に設定する
通信装置。 - 前記送信周期設定手段は、ソフトハンドオフ状態でない場合に、前記第1の周期を、ソフトハンドオフ状態である場合より長い周期に設定する
請求項1に記載の通信装置。 - 前記チャンネル品質情報によって品質が示される第1のチャンネルと、前記送信電力制御情報によって送信電力が制御される第2のチャンネルとは、異なるチャンネルである
請求項1に記載の通信装置。 - 前記第1のチャンネルは、DSCH(Down Link Shared Channel)である
請求項3に記載の通信装置。 - 前記第2のチャンネルは、DPCH(Dedicated Physical Channel)である
請求項3に記載の通信装置。 - 前記情報処理装置との間で行われる通信は、CDMA方式による通信である
請求項1に記載の通信装置。 - 通信相手の現在の受信品質を求める情報処理装置から受信した受信信号に基づいて、所定のチャンネルの品質を示すチャンネル品質情報を生成するチャンネル品質情報生成ステップと、
前記情報処理装置から受信した受信信号に基づいて、前記情報処理装置の送信電力を制御する送信電力制御情報を生成する送信電力制御情報生成ステップと、
前記チャンネル品質情報を、前記情報処理装置に対して、第1の周期で送信するチャンネル品質情報送信ステップと、
前記送信電力制御情報を、前記情報処理装置に対して、前記第1の周期よりも短い第2の周期で送信する送信電力制御情報送信ステップと、
前記情報処理装置から、前記第1の周期を指定する周期指定情報を受信する周期指定情報受信ステップと、
前記周期指定情報受信手段が受信した前記周期指定情報に応じて、前記第1の周期を設定する送信周期設定ステップと
を含み、
前記送信周期設定ステップの処理は、ソフトハンドオフ状態でない場合に、前記第1の周期を、ソフトハンドオフ状態である場合と異なる周期に設定する
通信方法。 - 受信品質を求める対象である通信装置から、第1の周期で送信されてくる、前記通信装置において生成された所定のチャンネルの品質を示すチャンネル品質情報を取得するチャンネル品質情報取得手段と、
前記通信装置から、前記第1の周期よりも短い第2の周期で送信されてくる、前記通信装置で生成された送信電力を制御する送信電力制御情報を取得する送信電力制御情報取得手段と、
前記通信装置に対して、前記第1の周期を指定する周期指定情報を送信する周期指定情報送信手段と
を備え、
前記周期指定情報送信手段は、前記通信装置がソフトハンドオフ状態でない場合に、前記第1の周期を、前記通信装置がソフトハンドオフ状態である場合と異なる周期に指定する前記周期指定情報を送信する
情報処理装置。 - 前記チャンネル品質情報によって品質が示される第1のチャンネルと、前記送信電力制御情報によって送信電力が制御される第2のチャンネルとは、異なるチャンネルである
請求項8に記載の情報処理装置。 - 前記第1のチャンネルは、DSCH(Down Link Shared Channel)である
請求項9に記載の情報処理装置。 - 前記第2のチャンネルは、DPCH(Dedicated Physical Channel)である
請求項9に記載の情報処理装置。 - 前記通信装置との間で行われる通信は、CDMA方式による通信である
請求項8に記載の情報処理装置。 - 受信品質を求める対象である通信装置から、第1の周期で送信されてくる、前記通信装置において生成された所定のチャンネルの品質を示すチャンネル品質情報を取得するチャンネル品質情報取得ステップと、
前記通信装置から、前記第1の周期よりも短い第2の周期で送信されてくる、前記通信装置で生成された送信電力を制御する送信電力制御情報を取得する送信電力制御情報取得ステップと、
前記通信装置に対して、前記第1の周期を指定する周期指定情報を送信する周期指定情報送信ステップと
を含み、
前記周期指定情報送信ステップは、前記通信装置がソフトハンドオフ状態でない場合に、前記第1の周期を、前記通信装置がソフトハンドオフ状態である場合と異なる周期に指定する前記周期指定情報を送信する
情報処理方法。
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US (6) | US9173175B2 (ja) |
EP (2) | EP1249951B1 (ja) |
JP (6) | JP4193109B2 (ja) |
KR (1) | KR100847187B1 (ja) |
AU (1) | AU2002214309A1 (ja) |
ES (2) | ES2611489T3 (ja) |
WO (1) | WO2002041530A1 (ja) |
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EP1249951B1 (en) * | 2000-11-16 | 2016-06-01 | Sony Corporation | Communication apparatus |
GB0124323D0 (en) * | 2001-10-10 | 2001-11-28 | Nokia Corp | Setting mode of communication |
TWI225339B (en) * | 2002-06-06 | 2004-12-11 | Via Telecom Co Ltd | Power control of plural packet data control channels |
ES2279118T3 (es) * | 2002-06-27 | 2007-08-16 | Koninklijke Philips Electronics N.V. | Medicion de caracteristicas de canal en un sistema de comunicacion. |
GB2391431A (en) | 2002-07-30 | 2004-02-04 | Fujitsu Ltd | Adaptive modulation and coding method |
US7957486B2 (en) * | 2002-09-30 | 2011-06-07 | Intel Corporation | Transmission link adaptation |
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