JP5221743B2 - 複数のシンボル長を使用する多重キャリア送信 - Google Patents
複数のシンボル長を使用する多重キャリア送信 Download PDFInfo
- Publication number
- JP5221743B2 JP5221743B2 JP2011256173A JP2011256173A JP5221743B2 JP 5221743 B2 JP5221743 B2 JP 5221743B2 JP 2011256173 A JP2011256173 A JP 2011256173A JP 2011256173 A JP2011256173 A JP 2011256173A JP 5221743 B2 JP5221743 B2 JP 5221743B2
- Authority
- JP
- Japan
- Prior art keywords
- size
- data
- ofdm symbol
- ofdm
- subbands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title description 47
- 238000000034 method Methods 0.000 claims abstract description 64
- 238000012545 processing Methods 0.000 claims description 41
- 238000004891 communication Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 abstract description 28
- 239000013598 vector Substances 0.000 abstract description 23
- 230000004044 response Effects 0.000 abstract description 13
- 230000000737 periodic effect Effects 0.000 description 31
- 238000013461 design Methods 0.000 description 13
- 125000004122 cyclic group Chemical group 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000013507 mapping Methods 0.000 description 6
- 230000011664 signaling Effects 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000009432 framing Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- 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
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
- H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
-
- 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
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0248—Eigen-space methods
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0028—Variable division
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0426—Power distribution
- H04B7/043—Power distribution using best eigenmode, e.g. beam forming or beam steering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
-
- 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
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
Description
図6は、複数のアクセス・ポイント(access point)(AP)510を有するイグゼンプラリなMIMO−OFDMシステム500を示す。アクセス・ポイント510は、複数のユーザ端末(user terminal)(UT)520に対する通信をサポートする。単純化のために、2つのアクセス・ポイント510a及び510bだけが、図6に示される。アクセス・ポイントは、ユーザ端末と通信するために使用される固定局であり、基地局又はある種の他の用語でも呼ばれる。ユーザ端末も、アクセス端末、移動局、ユーザ装置(user equipment)(UE)、ワイアレス装置、又はある種の他の用語でも呼ばれる。ユーザ端末520は、システム全体にわたって分散される。各ユーザ端末は、固定又は移動端末であり、任意の所定の瞬間においてダウンリンク及び/又はアップリンク上で1個の又は可能であれば複数のアクセス・ポイントと通信できる。ダウンリンク(すなわち、順方向リンク)は、アクセス・ポイントからユーザ端末への通信リンクを呼び、アップリンク(すなわち、逆方向リンク)は、ユーザ端末からアクセス・ポイントへの通信リンクを呼ぶ。
。例えば、1つのFCH PDU632aは、パイロットのための部分634a(例えば、ステアド基準(steered reference))及びデータ・パケットのための部分636aを含む。パイロット部分は、“プリアンブル(preamble)”としても呼ばれる。FCH PDU632bは、データ・パケットのための1個の部分636bを含む。異なるタイプのパイロット(ビーコン・パイロット、MIMOパイロット、及びステアド基準)は、前述の米国特許仮出願番号第60/421,309号に説明されている。
l=4k+i 式(1)
ここで、kは、短いOFDMシンボル(k=−32,・・・,+31)中のサブバンドに対するインデックスであり;
iは、i=0,1,2,3の範囲を有するインデックス・オフセットであり;及び
lは、長いOFDMシンボル(l=−128,・・・,+127)中のサブバンドに対するインデックスであるである。
1.物理レイヤ処理
図9は、MIMO−OFDMシステム500内部の1つのアクセス・ポイント510x及び2つのユーザ端末520x及び520yの実施形態のブロック図を示す。
l=int[Np/CL] ,そして 式(2)
m=ceiling[(Np−l・CL)/CSM] 式(3)
ここで、aに対する“int”演算は、aの整数値を与え、bに対する“ceiling”演算は、bに関する2番目に大きい整数値を与える。もし、m<4であれば、データ・パケットに対して使用する大きなOFDMシンボルの数は、NL=lであり、使用する小さなOFDMシンボルの数は、NSM=mである。それ以外は、もし、m=4であれば、データ・パケットに対して使用する大きなOFDMシンボルの数は、NL=l+1であり、使用する小さなOFDMシンボルの数は、NSM=0である。
種々のタイプのパイロットは、タイミング及び周波数捕捉、チャネル推定、キャリブレーション、及びその他のような、各種の機能をサポートするために送信される。表4は、4種類のパイロット及びそれらの短い説明を記載する。
H(k)=U(k)Σ(k)V H(k)、 k∈Kに対して 式(4)
ここで、U(k)は、H(k)の左固有ベクトルの(NT×NR)のユニタリ行列であり;
Σ(k)は、H(k)の特異値の(NR×NT)の対角行列であり;
V(k)は、H(k)の右固有ベクトルの(NT×NT)のユニタリ行列であり;そして
“H”は、複素転置を表し、NTは、送信アンテナの数を表し、そして、NRは、受信アンテナの数を表す。
x m(k)=v m(k)・p(k)、 k∈Kに対して 式(5)
ここで、x m(k)は、ワイドバンド固有モードmのサブバンドkに対する(NT×1)の送信ベクトルであり;
v m(k)は、ワイドバンド固有モードmのサブバンドkに対するステアリング・ベクトル(すなわち、行列V(k)のm番目の列)であり;そして
p(k)は、サブバンドkに対するパイロット・シンボルである。
r m(k)=H(k)x m(k)+n(k)、 k∈Kに対して 式(6)
=u m(k)σm(k)p(k)+n(k)
ここで、r m(k)は、ワイドバンド固有モードmのサブバンドkに対する受信されたベクトルであり;
u m(k)は、ワイドバンド固有モードmのサブバンドkに対するステアリング・ベクトル(すなわち、行列U(k)のm番目の列)であり;
σm(k)は、ワイドバンド固有モードmのサブバンドkに対する特異値であり;そして
n(k)は、ノイズである。
H(k)v m(k)=u m(k)σm(k) 式(7)
単位長ベクトルejψ v m(k)及びejψ u m(k)の任意のその他の対も、方程式を満足する。
以下に、本願発明の当初の特許請求の範囲に記載された発明を付記する。
[1]
第1のサイズの第1のOFDMシンボル中で第1のデータのブロックを送信すること、及び
第1のサイズとは異なる第2のサイズの第2のOFDMシンボル中で第2のデータのブロックを送信すること、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおいてデータを送信する方法。
[2]
第1のデータのブロックは、制御データを具備し、及び第2のデータのブロックは、ユーザ・データを具備する、[1]の方法。
[3]
第1のサイズは、制御データに対して予想されるペイロード・サイズに基づいて選択され、及び第2のサイズは、ユーザ・データに対して予想されるペイロード・サイズに基づいて選択される、[2]の方法。
[4]
第1及び第2のデータのブロックは、データ・パケットに対してである、[1]の方法。
[5]
第1のデータのブロックは、複数の受信機に対して向けられ、第2のデータのブロックは、1個の受信機に対して向けられる、[1]の方法。
[6]
第3のOFDMシンボル中のパイロットを送信すること、
をさらに具備する[1]の方法。
[7]
パイロットは、ステアド基準である、[6]の方法。
[8]
各対の第2のOFDMシンボルに対する変調シンボルは、2つのアンテナから1対のサブバンド上に同時に送信される、[1]の方法。
[9]
第1及び第2のOFDMシンボルに対する周期的プリフィックスは、同じ長さを有する、[1]の方法。
[10]
第1及び第2のOFDMシンボルに対する周期的プリフィックスは、異なる長さを有する、[1]の方法。
[11]
第2のデータのブロックは、第2のOFDMシンボル中で送信されるエラー検出値を取得するためにコード化される、[1]の方法。
[12]
第1及び第2のデータのブロックは、同じインターリービング・スキームを用いてインターリーブされる、[1]の方法。
[13]
第1及び第2のサイズは、2のべき乗によって関係付けられる、[1]の方法。
[14]
第1のサイズの第1のOFDMシンボル中の第1のデータのブロックを送信するための手段、及び
第1のサイズとは異なる第2のサイズの第2のOFDMシンボル中の第2のデータのブロックを送信するための手段、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける装置。
[15]
第1のサイズの第3のOFDMシンボル中のパイロットを送信するための手段、
をさらに具備する、[14]の装置。
[16]
変調シンボルの第1のセットを取得するために第1のデータのブロックを適切に処理し、及び変調シンボルの第2のセットを取得するために第2のデータのブロックを適切に処理するための送信(TX)データ・プロセッサ、及び
第1のサイズの第1のOFDMシンボルを取得するために変調シンボルの第1のセットを適切に処理し、及び第1のサイズとは異なる第2のサイズの第2のOFDMシンボルを取得するために変調シンボルの第2のセットを適切に処理するためのモジュレータ、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける送信機ユニット。
[17]
モジュレータは、パイロットに対する第3のOFDMシンボルを取得するためにパイロットに対する変調シンボルの第3のセットをさらに適切に処理する、[16]の送信機ユニット。
[18]
第1のサイズの第1のOFDMシンボルを有する第1の時間セグメント中の制御データを送信すること、及び
第1のサイズとは異なる第2のサイズの第2のOFDMシンボルを有する第2の時間セグメント中のユーザ・データを送信すること、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおいてデータを送信する方法。
[19]
第2のサイズとは異なる第3のサイズの第3のOFDMシンボルを有する第2の時間セグメント中のユーザ・データを送信すること、
をさらに具備する[18]の方法。
[20]
第3のOFDMシンボルを有する第3の時間セグメント中のパイロットを送信すること、
をさらに具備する{18}の方法。
[21]
第1及び第2のサイズは、固定である、[18]の方法。
[22]
第1及び第2のサイズは、設定可能である、[18]の方法。
[23]
第1のデータのブロックに対する第1のサイズの第1のOFDMシンボルを受信すること、及び
第2のサイズは第1のサイズとは異なり、第2のデータのブロックに対する第2のサイズの第2のOFDMシンボルを受信すること、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおいてデータを受信する方法。
[24]
第1のデータのブロックは、制御データを具備し、及び第2のデータのブロックは、ユーザ・データを具備する、[23]の方法。
[25]
第1及び第2のデータのブロックは、データ・パケットに対してである、[23]の方法。
[26]
パイロットに対する第3のOFDMシンボルを送信すること、
をさらに具備する[23]の方法。
[27]
複数のサブバンドのそれぞれに対するチャネル推定値を取得するために第3のOFDMシンボルを処理すること、
をさらに具備する[26]の方法。
[28]
複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために複数のサブバンドに対するチャネル推定値を補間すること、
をさらに具備する[27]の方法。
[29]
第1のデータのブロックに対する第1のサイズの第1のOFDMシンボルを受信するための手段、及び
第2のサイズは第1のサイズとは異なり、第2のデータのブロックに対する第2のサイズの第2のOFDMシンボルを受信するための手段、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける装置。
[30]
パイロットに対する第3のOFDMシンボルを受信するための手段、及び
複数のサブバンドのそれぞれに対するチャネル推定値を取得するために第3のOFDMシンボルを処理するための手段、
をさらに具備する[29]の装置。
[31]
複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために複数のサブバンドに対するチャネル推定値を補間するための手段、
を具備する、[30]の装置。
[32]
受信された変調シンボルの第1のセットを取得するために第1のサイズの第1のOFDMシンボルを適切に処理し、及び受信された変調シンボルの第2のセットを取得するために第2のサイズの第2のOFDMシンボルを適切に処理するためのデモジュレータ、ここで、第2のサイズは第1のサイズとは異なる、及び
第1のデータのブロックを取得するために受信された変調シンボルの第1のセットを適切に処理し、及び第2のデータのブロックを取得するために受信された変調シンボルの第2のセットを適切に処理するための受信(RX)データ・プロセッサ、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける受信機ユニット。
[33]
デモジュレータは、複数のサブバンドのそれぞれに対するチャネル推定値を与えるためにパイロットに対する第3のOFDMシンボルをさらに適切に処理する、[32]の受信機ユニット。
[34]
複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために複数のサブバンドに対するチャネル推定値を適切に補間するためのコントローラ、
をさらに具備する[33]の受信機ユニット。
[35]
パイロットに対するアンテナのセットからOFDMシンボルの第1のセットを受信することと、
複数のサブバンドのそれぞれに対するチャネル応答行列を取得するためにOFDMシンボルの第1のセットを処理すること;及び
チャネル応答行列に対する固有ベクトルのユニタリ行列を取得するために複数のサブバンドのそれぞれに対するチャネル応答行列を分解すること、ここで、分解は、サブバンド間の任意の位相回転を回避する方法で実行される、
を具備する、多元入力多元出力(MIMO)直交周波数分割マルチプレクシング(OFDM)通信システムにおいてパイロットを処理する方法。
[36]
サブバンド間の任意の位相回転は、ユニタリ行列の各列の第1の要素を負でない値になるように制約することによって回避される、[35]の方法。
[37]
複数のサブバンドのそれぞれに対するユニタリ行列の特定の列に基づいてステアド基準を発生させること、及び
ステアド基準のためにアンテナのセットからOFDMシンボルの第2のセットを送信すること、
をさらに具備する[36]の方法。
[38]
ステアド基準のためにアンテナのセットからのOFDMシンボルのセットを受信すること、
複数のサブバンドのそれぞれに対するステアリング・ベクトルを取得するためにOFDMシンボルのセットを処理すること、及び
複数のサブバンドの中にない付加的なサブバンドに対するステアリング・ベクトルを取得するために複数のサブバンドに対するステアリング・ベクトルを補間すること、
を具備する、多元入力多元出力(MIMO)直交周波数分割マルチプレクシング(OFDM)通信システムにおいてステアド基準を処理する方法。
[39]
OFDMシンボル・サイズのセットから第1のOFDMシンボル・サイズを選択すること、ここで、OFDMシンボル・サイズのセットは、大きなOFDMシンボル・サイズと大きなOFDMシンボル・サイズより小さい小さなOFDMシンボル・サイズとを具備する、及び
第1のOFDMシンボル・サイズを有するOFDMシンボル中のデータ・ユニットの第1の部分を送信すること、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおいてデータ・ユニット・サイズを有するデータ・ユニットを送信する方法。
[40]
第1のOFDMシンボル・サイズを選択することは、データ・ユニット・サイズに基づいている、[39]の方法。
[41]
データ・ユニットはデータ・ユニット・タイプを有する、そしてここで、第1のOFDMシンボル・サイズを選択することは、データ・ユニット・タイプに基づいている、[39]の方法。
[42]
OFDMシンボル・サイズのセットから第2のOFDMシンボル・サイズを選択すること、及び
第2のOFDMシンボル・サイズを有する第2のOFDMシンボル中のデータ・ユニットの第2の部分を送信すること、
をさらに具備する[39]の方法。
[43]
第1のOFDMシンボル・サイズは、第2のOFDMシンボル・サイズに等しい、[42]の方法。
[44]
第1のOFDMシンボル・サイズは、第2のOFDMシンボル・サイズより大きい、[42]の方法。
[45]
OFDMシンボル・サイズのセットから第1のOFDMシンボル・サイズを選択するための手段、ここで、OFDMシンボル・サイズのセットは、大きなOFDMシンボル・サイズと大きなOFDMシンボル・サイズより小さい小さなOFDMシンボル・サイズとを具備する、及び
第1のOFDMシンボル・サイズを有するOFDMシンボル中のデータ・ユニットの第1の部分を送信するための手段、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける装置。
[46]
OFDMシンボル・サイズのセットから第2のOFDMシンボル・サイズを選択するための手段、及び
第2のOFDMシンボル・サイズを有する第2のOFDMシンボル中のデータ・ユニットの第2の部分を送信するための手段、
をさらに具備する[45]の装置。
[47]
第1のOFDMシンボル・サイズは、データ・ユニットのデータ・ユニット・サイズに基づいて選択される、[45]の装置。
[48]
第1のOFDMシンボル・サイズは、データ・ユニットのデータ・ユニット・タイプに基づいて選択される、[45]の装置。
[49]
OFDMシンボル・サイズのセットから第1のOFDMシンボル・サイズを適切に選択するためのコントローラ、ここで、OFDMシンボル・サイズのセットは、大きなOFDMシンボル・サイズと大きなOFDMシンボル・サイズより小さい小さなOFDMシンボル・サイズとを具備する、及び
第1のOFDMシンボル・サイズを有するOFDMシンボルを取得するためにデータ・ユニットの第1の部分を適切に処理するためのモジュレータ、
を具備する、直交周波数分割マルチプレクシング(OFDM)通信システムにおける送信機ユニット。
[50]
コントローラは、OFDMシンボル・サイズのセットから第2のOFDMシンボル・サイズをさらに適切に選択する、及びここで、モジュレータは、第2のOFDMシンボル・サイズを有する第2のOFDMシンボルを取得するためにデータ・ユニットの第2の部分をさらに適切に処理する、[49]の送信機。
Claims (10)
- 直交周波数分割マルチプレクシング(OFDM)通信システムにおいて送信機デバイスから受信機デバイスへのデータを受信する方法であって、
前記受信機デバイスにおいて、データパケットに関連付けられた第1のデータブロックに対する第1のサイズの第1のOFDMシンボルを前記送信機デバイスから受信することと、なお、前記第1のデータブロックは制御データであり、前記第1のサイズは前記第1のデータブロックのサイズに基づいて選択される;及び
前記受信機デバイスにおいて、前記データパケットに関連付けられた第2のデータブロックに対する第2のサイズの第2のOFDMシンボルを前記送信機デバイスから受信することと、なお、前記第2のデータのブロックはユーザデータであり、前記第2のサイズは前記第1のサイズとは異なり、かつ前記第2のサイズは前記第2のデータブロックのサイズに基づいて選択され、前記第1のOFDMシンボルサイズと前記第2のOFDMシンボルサイズは、第1のペイロードサイズを有するデータブロックを送信するために第1のOFDMシンボルを使用し、第2のペイロードサイズを有するデータブロックを送信するために第2のOFDMシンボルを使用することによって前記データパケットのパッキング効率を最大にするように選択される;
を具備する方法。 - パイロットに対する第3のOFDMシンボルを送信することをさらに具備する、請求項1の方法。
- 複数のサブバンドのそれぞれに対するチャネル推定値を取得するために前記第3のOFDMシンボルを処理することをさらに具備する、請求項2の方法。
- 前記複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために、前記複数のサブバンドに対するチャネル推定値を補間することをさらに具備する、請求項3の方法。
- 直交周波数分割マルチプレクシング(OFDM)通信システムにおいて送信機デバイスから受信機デバイスへのデータを受信する装置であって、
前記受信機デバイスにおいて、データパケットに関連付けられた第1のデータブロックに対する第1のサイズの第1のOFDMシンボルを前記送信機デバイスから受信する手段と、なお、前記第1のデータブロックは制御データであり、前記第1のサイズは前記第1のデータブロックのサイズに基づいて選択される;及び
前記受信機デバイスにおいて、前記データパケットに関連付けられた第2のデータブロックに対する第2のサイズの第2のOFDMシンボルを前記送信機デバイスから受信する手段と、なお、前記第2のデータのブロックはユーザデータであり、前記第2のサイズは前記第1のサイズとは異なり、かつ前記第2のサイズは前記第2のデータブロックのサイズに基づいて選択され、前記第1のサイズ及び前記第2のサイズは、第1のペイロードサイズを有するデータブロックを送信するために第1のOFDMシンボルを使用し、第2のペイロードサイズを有するデータブロックを送信するために第2のOFDMシンボルを使用することによって前記データパケットのパッキング効率を最大にするように選択される;
を具備する装置。 - パイロットに対する第3のOFDMシンボルを受信するための手段と;及び
複数のサブバンドのそれぞれに対するチャネル推定値を取得するために前記第3のOFDMシンボルを処理するための手段と;
をさらに具備する、請求項5の装置。 - 前記複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために、前記複数のサブバンドに対するチャネル推定値を補間するための手段をさらに具備する、請求項6の装置。
- 直交周波数分割マルチプレクシング(OFDM)通信システムにおける受信機ユニットであって、
受信された変調シンボルの第1のセットを取得するために第1のサイズの第1のOFDMシンボルを処理し、かつ、受信された変調シンボルの第2のセットを取得するために第2のサイズの第2のOFDMシンボルを処理するためのデモジュレータと、なお、前記第1のOFDMシンボルは制御データ及びユーザデータにそれぞれ関連付けられ、前記第2のOFDMシンボルは前記ユーザデータに関連付けられ、前記第2のサイズは前記第1のサイズとは異なり、前記OFDMシンボルの第1及び第2のサイズはそれぞれ前記データパケットの第1及び第2のデータブロックのそれぞれに関連付けられたペイロードサイズに基づいて選択され、前記第1及び第2のサイズは、第1のペイロードサイズを有するデータブロックを送信するために第1のOFDMシンボルを使用し、第2のペイロードサイズを有するデータブロックを送信するために第2のOFDMシンボルを使用することによって前記データパケットのパッキング効率を最大にするように選択される;及び
前記第1のデータブロックを取得するために前記受信された変調シンボルの第1のセットを処理し、かつ、前記第2のデータブロックを取得するために前記受信された変調シンボルの第2のセットを処理するための受信(RX)データプロセッサと;
を具備する受信機ユニット。 - 前記デモジュレータは、複数のサブバンドのそれぞれに対するチャネル推定値を与えるために、パイロットに対する第3のOFDMシンボルをさらに処理する、請求項8の受信機ユニット。
- 前記複数のサブバンドの中にない付加的なサブバンドに対するチャネル推定値を取得するために前記複数のサブバンドに対するチャネル推定値を補間するためのコントローラをさらに具備する、請求項9の受信機ユニット。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42130902P | 2002-10-25 | 2002-10-25 | |
US60/421,309 | 2002-10-25 | ||
US43860103P | 2003-01-07 | 2003-01-07 | |
US60/438,601 | 2003-01-07 | ||
US10/375,162 US20040081131A1 (en) | 2002-10-25 | 2003-02-25 | OFDM communication system with multiple OFDM symbol sizes |
US10/375,162 | 2003-02-25 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005501686A Division JP4913406B2 (ja) | 2002-10-25 | 2003-10-27 | 複数のシンボル長を使用する多重キャリア送信 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012105278A JP2012105278A (ja) | 2012-05-31 |
JP5221743B2 true JP5221743B2 (ja) | 2013-06-26 |
Family
ID=32110793
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005501686A Expired - Lifetime JP4913406B2 (ja) | 2002-10-25 | 2003-10-27 | 複数のシンボル長を使用する多重キャリア送信 |
JP2010030077A Expired - Lifetime JP5096508B2 (ja) | 2002-10-25 | 2010-02-15 | 複数のシンボル長を使用する多重キャリア送信 |
JP2011256173A Expired - Lifetime JP5221743B2 (ja) | 2002-10-25 | 2011-11-24 | 複数のシンボル長を使用する多重キャリア送信 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005501686A Expired - Lifetime JP4913406B2 (ja) | 2002-10-25 | 2003-10-27 | 複数のシンボル長を使用する多重キャリア送信 |
JP2010030077A Expired - Lifetime JP5096508B2 (ja) | 2002-10-25 | 2010-02-15 | 複数のシンボル長を使用する多重キャリア送信 |
Country Status (15)
Country | Link |
---|---|
US (2) | US20040081131A1 (ja) |
EP (2) | EP1557022A2 (ja) |
JP (3) | JP4913406B2 (ja) |
KR (1) | KR100990683B1 (ja) |
CN (2) | CN101997814B (ja) |
AU (2) | AU2003284944C1 (ja) |
BR (1) | BR0315540A (ja) |
CA (3) | CA2756741C (ja) |
HK (3) | HK1156164A1 (ja) |
IL (2) | IL167554A (ja) |
MX (1) | MXPA05004398A (ja) |
RU (1) | RU2380845C2 (ja) |
TW (1) | TWI339036B (ja) |
UA (1) | UA84411C2 (ja) |
WO (1) | WO2004039027A2 (ja) |
Families Citing this family (224)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
WO2004047348A1 (ja) * | 2002-11-20 | 2004-06-03 | Ntt Docomo, Inc. | 通信システム、通信方法、送信装置、受信装置及び制御プログラム |
US6950387B2 (en) * | 2003-02-28 | 2005-09-27 | Wisair Ltd. | Communication method, system, and apparatus that combines aspects of cyclic prefix and zero padding techniques |
EP1469613A1 (de) * | 2003-04-16 | 2004-10-20 | Siemens Aktiengesellschaft | Verfahren und Sender zur Übertragung von Daten in einem Mehrträgersystem über eine Mehrzahl von Sendeantennen |
US7400573B2 (en) * | 2003-04-29 | 2008-07-15 | Intel Corporation | Dynamic allocation of cyclic extension in orthogonal frequency division multiplexing systems |
US7835262B2 (en) * | 2003-05-14 | 2010-11-16 | Texas Instruments Incorporated | Multi-band OFDM communications system |
EP1636928A4 (en) * | 2003-05-14 | 2012-01-04 | Texas Instruments Inc | MULTI-BAND DISTRICT COMMUNICATION SYSTEMS |
EP1627476B1 (en) * | 2003-05-27 | 2015-10-21 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Scheduler and method of scheduling data for communication between a node station and plurality of radio terminals |
WO2004114609A1 (ja) * | 2003-06-18 | 2004-12-29 | Nippon Telegraph And Telephone Corporation | 無線パケット通信方法 |
EP1639776B1 (en) * | 2003-06-30 | 2015-08-26 | Agere Systems, Inc. | Methods and apparatus for backwards compatible communication in a multiple antenna communication system using time orthogonal symbols |
US7969857B2 (en) * | 2003-08-07 | 2011-06-28 | Nortel Networks Limited | OFDM system and method employing OFDM symbols with known or information-containing prefixes |
KR20050015913A (ko) * | 2003-08-14 | 2005-02-21 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식 통신 시스템에서 파일럿송수신 장치 및 방법 |
EP1662838B1 (en) * | 2003-08-19 | 2008-05-07 | Matsushita Electric Industrial Co., Ltd. | Loudspeaker |
US7693034B2 (en) * | 2003-08-27 | 2010-04-06 | Sasken Communication Technologies Ltd. | Combined inverse fast fourier transform and guard interval processing for efficient implementation of OFDM based systems |
ES2295543T3 (es) * | 2003-09-08 | 2008-04-16 | Abb Research Ltd. | Cifrado de datos sobre la capa fisica de un sistema de transmision de datos. |
US8908496B2 (en) * | 2003-09-09 | 2014-12-09 | Qualcomm Incorporated | Incremental redundancy transmission in a MIMO communication system |
JP2005110130A (ja) * | 2003-10-01 | 2005-04-21 | Samsung Electronics Co Ltd | 共通チャネル伝送システム、共通チャネル伝送方法及び通信プログラム |
JP2005123788A (ja) * | 2003-10-15 | 2005-05-12 | Sharp Corp | 無線通信装置 |
KR100950646B1 (ko) * | 2003-10-16 | 2010-04-01 | 삼성전자주식회사 | 다입다출 직교주파수분할다중 통신 시스템의 동기화를위한 프리앰블 전송 방법 |
KR100969780B1 (ko) * | 2003-10-31 | 2010-07-13 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식 통신 시스템에서 파일럿 신호 송수신 장치 및 방법 |
KR100520159B1 (ko) * | 2003-11-12 | 2005-10-10 | 삼성전자주식회사 | 다중 안테나를 사용하는 직교주파수분할다중 시스템에서간섭신호 제거 장치 및 방법 |
KR100975720B1 (ko) * | 2003-11-13 | 2010-08-12 | 삼성전자주식회사 | 다중 송수신 안테나를 구비하는 직교주파수분할다중화 시스템에서 공간 분할 다중화를 고려하여 채널 할당을 수행하는 방법 및 시스템 |
FI20031702A0 (fi) * | 2003-11-21 | 2003-11-21 | Nokia Corp | Useiden kantoaaltojen allokointi usealle käyttäjälle viestintäjärjestelmässä |
US7532723B2 (en) * | 2003-11-24 | 2009-05-12 | Interdigital Technology Corporation | Tokens/keys for wireless communications |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
IL159173A0 (en) * | 2003-12-03 | 2004-06-01 | Zion Hadad | Ofdm communication channel |
SE0303607D0 (sv) * | 2003-12-30 | 2003-12-30 | Ericsson Telefon Ab L M | Brandwidth signalling |
TW200945850A (en) * | 2004-01-13 | 2009-11-01 | Interdigital Tech Corp | Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information |
US20050220322A1 (en) * | 2004-01-13 | 2005-10-06 | Interdigital Technology Corporation | Watermarks/signatures for wireless communications |
US20070121939A1 (en) * | 2004-01-13 | 2007-05-31 | Interdigital Technology Corporation | Watermarks for wireless communications |
WO2005074166A1 (en) | 2004-01-29 | 2005-08-11 | Neocific, Inc. | Methods and apparatus for overlaying multi-carrier and direct sequence spread spectrum signals in a broadband wireless communication system |
WO2005079526A2 (en) * | 2004-02-18 | 2005-09-01 | Interdigital Technology Corporation | Method and system for using watermarks in communication systems |
KR100617729B1 (ko) * | 2004-03-05 | 2006-08-28 | 삼성전자주식회사 | 셀룰러 통신 시스템에서 다중 주파수 재사용율 기반의 주파수 자원 할당 시스템 및 방법 |
US7447268B2 (en) * | 2004-03-31 | 2008-11-04 | Intel Corporation | OFDM system with per subcarrier phase rotation |
US8422585B2 (en) | 2004-04-01 | 2013-04-16 | Research In Motion Limited | Space-time block coding systems and methods |
EP1730869B1 (en) * | 2004-04-01 | 2009-11-18 | Nortel Networks Limited | Space-time block coding system and methods |
KR100744336B1 (ko) * | 2004-06-18 | 2007-07-30 | 삼성전자주식회사 | Ofdm기반의 무선 통신 시스템에서의 핸드오버 방법 |
US20050288062A1 (en) * | 2004-06-23 | 2005-12-29 | Hammerschmidt Joachim S | Method and apparatus for selecting a transmission mode based upon packet size in a multiple antenna communication system |
US20060002487A1 (en) * | 2004-06-30 | 2006-01-05 | Kriedte Kai R | Methods and apparatus for parametric estimation in a multiple antenna communication system |
TW200602902A (en) * | 2004-07-12 | 2006-01-16 | Benq Corp | Method of calculating FFT |
US9246728B2 (en) | 2004-07-29 | 2016-01-26 | Qualcomm Incorporated | System and method for frequency diversity |
CA2575528A1 (en) | 2004-07-29 | 2006-02-09 | Qualcomm Incorporated | System and method for diversity interleaving |
MX2007001704A (es) * | 2004-08-12 | 2007-04-12 | Interdigital Tech Corp | Metodo y sistema para controlar el acceso a un medio de comunicacion inalambrica. |
US8484272B2 (en) * | 2004-08-20 | 2013-07-09 | Qualcomm Incorporated | Unified pulse shaping for multi-carrier and single-carrier waveforms |
US7366250B2 (en) * | 2004-09-09 | 2008-04-29 | Agere Systems Inc. | Method and apparatus for improved efficiency in an extended multiple antenna communication system |
US7477633B2 (en) * | 2004-09-09 | 2009-01-13 | Agere Systems Inc. | Method and apparatus for varying the number of pilot tones in a multiple antenna communication system |
AU2005285593B2 (en) * | 2004-09-18 | 2009-02-05 | Samsung Electronics Co., Ltd. | Apparatus and method for frequency synchronization in OFDM system |
CN102013909B (zh) | 2004-09-27 | 2013-04-10 | 夏普株式会社 | 无线发送装置 |
US7567502B2 (en) * | 2004-10-14 | 2009-07-28 | Qualcomm Incorporated | Methods and apparatus for adjusting bandwidth allocation in a wireless communications system |
US7969858B2 (en) | 2004-10-14 | 2011-06-28 | Qualcomm Incorporated | Wireless terminal methods and apparatus for use in wireless communications systems supporting different size frequency bands |
US20060155795A1 (en) * | 2004-12-08 | 2006-07-13 | Anderson James B | Method and apparatus for hardware implementation of high performance fast fourier transform architecture |
US8160046B2 (en) | 2004-12-22 | 2012-04-17 | Qualcomm Incorporated | Control channel assignment in a wireless communication network |
US7852822B2 (en) * | 2004-12-22 | 2010-12-14 | Qualcomm Incorporated | Wide area and local network ID transmission for communication systems |
US7904723B2 (en) * | 2005-01-12 | 2011-03-08 | Interdigital Technology Corporation | Method and apparatus for enhancing security of wireless communications |
US20060176966A1 (en) * | 2005-02-07 | 2006-08-10 | Stewart Kenneth A | Variable cyclic prefix in mixed-mode wireless communication systems |
US20060198460A1 (en) * | 2005-03-03 | 2006-09-07 | Texas Instruments Incorporated | Link adaptation for high throughput multiple antenna WLAN systems |
US7471702B2 (en) * | 2005-03-09 | 2008-12-30 | Qualcomm Incorporated | Methods and apparatus for implementing, using, transmitting, and/or receiving signals at least some of which include intentional null tones |
US7826807B2 (en) * | 2005-03-09 | 2010-11-02 | Qualcomm Incorporated | Methods and apparatus for antenna control in a wireless terminal |
US8325826B2 (en) * | 2005-03-09 | 2012-12-04 | Qualcomm Incorporated | Methods and apparatus for transmitting signals facilitating antenna control |
US7742444B2 (en) * | 2005-03-15 | 2010-06-22 | Qualcomm Incorporated | Multiple other sector information combining for power control in a wireless communication system |
US8031583B2 (en) * | 2005-03-30 | 2011-10-04 | Motorola Mobility, Inc. | Method and apparatus for reducing round trip latency and overhead within a communication system |
JP4358158B2 (ja) | 2005-03-31 | 2009-11-04 | 株式会社エヌ・ティ・ティ・ドコモ | 送信装置および割当方法 |
CN101171785B (zh) * | 2005-05-04 | 2011-01-26 | Nxp股份有限公司 | 用于mimo传输的数据流的独立交织 |
US7466749B2 (en) * | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US7613138B2 (en) * | 2005-05-23 | 2009-11-03 | Microsoft Corporation | Separating control and data in wireless networks |
JP4732808B2 (ja) * | 2005-06-14 | 2011-07-27 | 株式会社エヌ・ティ・ティ・ドコモ | 無線パラメータ群を生成する装置 |
US8750908B2 (en) * | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US9055552B2 (en) * | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US20070002726A1 (en) * | 2005-07-01 | 2007-01-04 | Zangi Kambiz C | System and method for adapting a cyclic prefix in an orthogonal frequency division multiplexing (OFDM) system |
EP1898543A1 (en) * | 2005-07-14 | 2008-03-12 | Matsushita Electric Industrial Co., Ltd. | Radio communication apparatus and radio communication method in multicarrier communication |
JP4753737B2 (ja) * | 2005-07-18 | 2011-08-24 | 三洋電機株式会社 | 無線装置 |
US9042212B2 (en) | 2005-07-29 | 2015-05-26 | Qualcomm Incorporated | Method and apparatus for communicating network identifiers in a communication system |
US9391751B2 (en) | 2005-07-29 | 2016-07-12 | Qualcomm Incorporated | System and method for frequency diversity |
US20070064665A1 (en) | 2005-08-23 | 2007-03-22 | Interdigital Technology Corporation | Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system |
US7885660B2 (en) * | 2005-08-30 | 2011-02-08 | Samsung Electronics Co., Ltd. | Method and system for performing a soft handoff in an OFDMA wireless network |
US9354297B2 (en) | 2005-09-27 | 2016-05-31 | Qualcomm Incorporated | Position location using phase-adjusted transmitters |
US8981996B2 (en) * | 2005-09-27 | 2015-03-17 | Qualcomm Incorporated | Position location using transmitters with timing offset and phase adjustment |
US20070072621A1 (en) * | 2005-09-27 | 2007-03-29 | Mukkavilli Krishna K | Position location using transmitters with timing offset |
WO2007041086A1 (en) * | 2005-09-29 | 2007-04-12 | Interdigital Technology Corporation | Mimo beamforming-based single carrier frequency division multiple access system |
JPWO2007037414A1 (ja) * | 2005-09-30 | 2009-04-16 | パナソニック株式会社 | 無線通信移動局装置およびrachデータ送信方法 |
WO2007091131A1 (en) * | 2005-10-05 | 2007-08-16 | Nxp B.V. | Individual interleaving of data streams for mimo transmission |
JP2009514429A (ja) | 2005-10-27 | 2009-04-02 | クゥアルコム・インコーポレイテッド | 無線通信システムにおいてアクセスプローブを送信する方法及び装置 |
US20070147226A1 (en) * | 2005-10-27 | 2007-06-28 | Aamod Khandekar | Method and apparatus for achieving flexible bandwidth using variable guard bands |
US20090207790A1 (en) * | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US20070097935A1 (en) * | 2005-10-27 | 2007-05-03 | Alexei Gorokhov | In-band rate control for an orthogonal frequency division multiple access communication system |
KR100878176B1 (ko) * | 2005-12-10 | 2009-01-12 | 삼성전자주식회사 | 다중 홉 릴레이 방식의 셀룰러 네트워크에서 동작 전환갭을조정하기 위한 장치 및 방법 |
KR20070108316A (ko) * | 2005-12-22 | 2007-11-09 | 한국전자통신연구원 | Ofdm 셀룰라 시스템에서 동기채널 및 bch 를 위한송신 다이버시티 방법 |
WO2007073116A1 (en) * | 2005-12-22 | 2007-06-28 | Electronics And Telecommunications Research Institute | Method for demodulating broadcast channel by using synchronization channel at ofdm system with transmit diversity and transmitting/receiving device therefor |
KR20070073138A (ko) * | 2006-01-03 | 2007-07-10 | 삼성전자주식회사 | 다중 홉 릴레이 방식의 광대역 무선 접속 통신 시스템에서투명 중계하기 위한 장치 및 방법 |
KR100871856B1 (ko) * | 2006-01-06 | 2008-12-03 | 삼성전자주식회사 | 광대역 무선접속 통신시스템에서 중계 서비스를 제공하기위한 장치 및 방법 |
US8130857B2 (en) * | 2006-01-20 | 2012-03-06 | Qualcomm Incorporated | Method and apparatus for pilot multiplexing in a wireless communication system |
KR100895183B1 (ko) * | 2006-02-03 | 2009-04-24 | 삼성전자주식회사 | 무선통신 시스템을 위한 주변 셀 간섭의 제거를 위한송수신 방법 및 장치 |
KR101218495B1 (ko) * | 2006-02-21 | 2013-01-18 | 삼성전자주식회사 | 직교 주파수 분할 다중화/시분할 듀플렉스 방식의 이동통신시스템에서 상향링크 사전등화를 위한 하향링크 채널변화에 따른 적응채널 예측 장치 및 방법 |
CN101611579B (zh) * | 2006-03-24 | 2012-12-26 | Lg电子株式会社 | 生成具有ofdm可变持续时间码元的传输时隙的方法以及使用该方法的移动终端 |
KR101573127B1 (ko) | 2006-05-09 | 2015-12-01 | 인터디지탈 테크날러지 코포레이션 | Ofdm-mimo 시스템을 위한 랜덤 액세스 채널 |
WO2007136212A2 (en) * | 2006-05-19 | 2007-11-29 | Lg Electronics Inc. | A method of configuring wireless resource for effective and efficient transmission in a wireless communication system |
WO2007143588A2 (en) * | 2006-06-01 | 2007-12-13 | Wionics Research | Channel estimation |
WO2007145660A1 (en) * | 2006-06-14 | 2007-12-21 | Agere Systems, Inc. | Orthogonal frequency division multiplexing using subsymbol processing |
JP5237288B2 (ja) * | 2006-06-16 | 2013-07-17 | クゥアルコム・インコーポレイテッド | ビーコン信号における情報の符号化 |
ATE418193T1 (de) * | 2006-06-23 | 2009-01-15 | Mitsubishi Electric Inf Tech | Verfahren und vorrichtung zur bestimmung von kanalzustandsinformationen welche von einer ersten zu einer zweiten telekommunikationsvorrichtung zu übertragen sind |
CN101106435B (zh) * | 2006-07-10 | 2011-08-03 | 华为技术有限公司 | 一种多对线共同传输的方法及发送端和接收端 |
US10084627B2 (en) | 2006-07-10 | 2018-09-25 | Qualcomm Incorporated | Frequency hopping in an SC-FDMA environment |
US8225186B2 (en) * | 2006-07-14 | 2012-07-17 | Qualcomm Incorporated | Ecoding and decoding methods and apparatus for use in a wireless communication system |
US7724853B2 (en) * | 2006-07-14 | 2010-05-25 | Qualcomm Incorporated | Enabling mobile switched antennas |
US7720485B2 (en) | 2006-07-14 | 2010-05-18 | Qualcomm Incorporated | Methods and apparatus related to assignment in a wireless communications system |
US8400998B2 (en) | 2006-08-23 | 2013-03-19 | Motorola Mobility Llc | Downlink control channel signaling in wireless communication systems |
US8725066B2 (en) * | 2006-08-23 | 2014-05-13 | Samsung Electronics Co., Ltd. | Apparatus and method for allocating resource to mobile station connected to relay station in broadband wireless communication system |
US7769119B2 (en) * | 2006-09-27 | 2010-08-03 | Sandbridge Technologies, Inc. | Method of initial synchronization of a communication signal |
TWI416913B (zh) * | 2006-10-02 | 2013-11-21 | Lg Electronics Inc | 傳輸下鏈控制訊號的方法 |
JP4976498B2 (ja) | 2006-10-02 | 2012-07-18 | エルジー エレクトロニクス インコーポレイティド | 効率的な多重化を用いた制御信号送信方法 |
US9130618B2 (en) * | 2006-10-26 | 2015-09-08 | Alcatel Lucent | MIMO communication system with variable slot structure |
MX2009004842A (es) * | 2006-11-06 | 2009-05-28 | Qualcomm Inc | Codificacion de nivel de palabra de codigo para transmision mimo. |
US8179985B2 (en) * | 2006-11-13 | 2012-05-15 | Industrial Technology Research Institute | Method and apparatus for providing time-frequency diversity in OFDM wireless communication systems |
US8355464B2 (en) | 2006-11-16 | 2013-01-15 | Electronics And Telecommunications Research Institute | Method for generating and transmitting downlink frame |
EP2091165B1 (en) * | 2006-12-08 | 2014-09-17 | Fujitsu Limited | Method for reducing interference between adjacent sectors, and base station apparatus |
US20080165866A1 (en) * | 2007-01-08 | 2008-07-10 | Koon Hoo Teo | Cooperative Communication and Shared Handoff among Base, Relay, and Mobile Stations in OFDMA Cellular Networks |
EP1944896A1 (en) | 2007-01-09 | 2008-07-16 | Matsushita Electric Industrial Co., Ltd. | Configuration of control channels in a mobile communication system |
US20080212461A1 (en) * | 2007-03-01 | 2008-09-04 | Texas Instruments Incorporated | Transform-based systems and methods for reconstructing steering matrices in a mimo-ofdm system |
KR101049138B1 (ko) | 2007-03-19 | 2011-07-15 | 엘지전자 주식회사 | 이동 통신 시스템에서, 수신확인신호 수신 방법 |
EP2127245B1 (en) | 2007-03-19 | 2015-12-23 | LG Electronics Inc. | A resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system |
KR101468490B1 (ko) | 2007-05-02 | 2014-12-10 | 삼성전자주식회사 | 무선 통신 시스템에서 제어 채널들의 집합을 한정하여 송수신하는 방법 및 장치 |
US7885176B2 (en) * | 2007-06-01 | 2011-02-08 | Samsung Electronics Co., Ltd. | Methods and apparatus for mapping modulation symbols to resources in OFDM systems |
KR100913090B1 (ko) * | 2007-06-13 | 2009-08-21 | 엘지전자 주식회사 | 통신 시스템에서 확산 신호를 송신하는 방법 |
KR100908063B1 (ko) * | 2007-06-13 | 2009-07-15 | 엘지전자 주식회사 | 이동 통신 시스템에서 확산신호를 송신하는 방법 |
KR100900289B1 (ko) | 2007-06-21 | 2009-05-29 | 엘지전자 주식회사 | 직교 주파수 분할 다중화 시스템에서 제어 채널을 송수신하는 방법 |
KR100884385B1 (ko) * | 2007-08-31 | 2009-02-17 | 한국전자통신연구원 | 신호 송신 장치 및 그 방법, 이를 위한 역고속 푸리에 변환장치 |
EP2200201B8 (en) * | 2007-08-31 | 2017-08-09 | Fujitsu Ten Limited | Diversity receiving device, diversity receiving method, and digital television receiving apparatus |
US20090074103A1 (en) * | 2007-09-14 | 2009-03-19 | Texas Instruments Incorporated | Rate matching to maintain code block resource element boundaries |
US9066264B2 (en) * | 2007-10-01 | 2015-06-23 | Google Technology Holdings LLC | Status report triggering in wireless communication system |
US8098623B2 (en) * | 2007-10-03 | 2012-01-17 | Telefonaktiebolaget Lm Ericsson | Telecommunications frame structure accomodating differing formats |
US8218496B2 (en) * | 2007-10-26 | 2012-07-10 | Texas Instruments Incorporated | Random access cyclic prefix dimensioning in wireless networks |
US7986648B2 (en) * | 2007-10-31 | 2011-07-26 | Qualcomm Incorporated | Methods and apparatus for communicating information using different types of symbols |
US8861549B2 (en) * | 2007-11-05 | 2014-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple compatible OFDM systems with different bandwidths |
US8155701B2 (en) * | 2007-11-07 | 2012-04-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Uplink radio frames apportioned for plural multiple access technologies |
US20090161616A1 (en) * | 2007-11-07 | 2009-06-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Ranging procedure identification of enhanced wireless terminal |
KR101154702B1 (ko) * | 2007-12-20 | 2012-06-11 | 인터내셔널 비지네스 머신즈 코포레이션 | 주어진 영역에 포함된 rfid 태그가 부착된 품목들을 결정하기 위한 시스템 및 방법 |
JP2011510569A (ja) * | 2008-01-16 | 2011-03-31 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | シンボル長を短縮されたofdmシンボル |
WO2009102182A1 (en) | 2008-02-17 | 2009-08-20 | Lg Electronics Inc. | Method of communication using frame |
US8107545B2 (en) * | 2008-04-30 | 2012-01-31 | Samsung Electronics Co., Ltd. | Method and system for phase tracking in wireless communication systems |
ATE474374T1 (de) * | 2008-05-14 | 2010-07-15 | Ericsson Telefon Ab L M | Verfahren zur steuerung einer empfängerverstärkung |
US8670376B2 (en) | 2008-08-12 | 2014-03-11 | Qualcomm Incorporated | Multi-carrier grant design |
EP2166694A3 (en) * | 2008-09-18 | 2012-01-04 | Samsung Electronics Co., Ltd. | Transmission of sounding reference signals in TDD communication systems |
JP4465020B2 (ja) * | 2008-09-26 | 2010-05-19 | 株式会社エヌ・ティ・ティ・ドコモ | 移動局及び無線基地局 |
KR101557676B1 (ko) * | 2008-10-31 | 2015-10-06 | 삼성전자주식회사 | 이동무선 통신시스템의 하향링크 제어채널의 페이로드 크기결정장치 및 방법 |
TWI385672B (zh) * | 2008-11-05 | 2013-02-11 | Lite On It Corp | 儲存裝置之適應性多通道控制器及其方法 |
RU2479928C2 (ru) * | 2008-11-27 | 2013-04-20 | Эл Джи Электроникс Инк. | Устройство и способ передачи данных в системе беспроводной связи |
US9154273B2 (en) | 2008-12-22 | 2015-10-06 | Lg Electronics Inc. | Method and apparatus for data transmission using a data frame |
CN103957092B (zh) | 2009-01-29 | 2017-04-05 | 太阳专利信托公司 | 发送装置、接收装置、发送方法、接收方法以及集成电路 |
EP3399821B1 (en) * | 2009-03-12 | 2024-02-28 | Sun Patent Trust | Terminal and method for receiving a downlink control channel in a terminal |
US8773969B1 (en) | 2009-03-24 | 2014-07-08 | Marvell International Ltd. | Multi-radio device for WLAN |
US10411846B1 (en) | 2009-03-24 | 2019-09-10 | Marvell International Ltd. | Multi-radio device for WLAN |
JP5624138B2 (ja) * | 2009-08-17 | 2014-11-12 | アルカテル−ルーセント | 通信ネットワーク内でプリコーディングチャネルのコヒーレンシーを維持する方法および関連装置 |
CN102014083B (zh) * | 2009-09-08 | 2013-07-10 | 电信科学技术研究院 | 一种信道估计的方法、系统和装置 |
CN102845030A (zh) * | 2010-01-27 | 2012-12-26 | 新加坡科技研究局 | 通信方法 |
EP2537279B1 (en) | 2010-02-15 | 2018-10-03 | Lantiq Beteiligungs-GmbH & Co.KG | Symbol generation in different multicarrier systems operating in overlapped frequency bandwidths |
US8274995B2 (en) | 2010-05-17 | 2012-09-25 | Telefonaktiebolaget L M Ericsson (Publ) | Cyclic prefix for non-contiguous signal transmission |
US8594216B2 (en) | 2010-08-25 | 2013-11-26 | Qualcomm Incorporated | Beamforming feedback options for MU-MIMO |
CN102378161B (zh) * | 2010-08-27 | 2015-07-01 | 中国移动通信集团公司 | 用户设备及利用该用户设备确定ta值的方法 |
WO2012058648A2 (en) * | 2010-10-29 | 2012-05-03 | Neocific, Inc. | Transmission of synchronization and control signals in a broadband wireless system |
US9178745B2 (en) | 2011-02-04 | 2015-11-03 | Marvell World Trade Ltd. | Control mode PHY for WLAN |
EP2671337B1 (en) | 2011-02-04 | 2018-04-11 | Marvell World Trade Ltd. | Control mode phy for wlan |
US8849354B2 (en) * | 2011-02-25 | 2014-09-30 | Fujitsu Limited | Transceiver set assignment scheme for a distributed antenna system |
WO2012129807A1 (zh) * | 2011-03-31 | 2012-10-04 | 富士通株式会社 | 蝶形滤波器系数设定方法和装置、接收机及接收方法 |
US20130315323A1 (en) * | 2011-04-24 | 2013-11-28 | Broadcom Corporation | Traveling pilots within single user, multiple user, multiple access, and/or MIMO wireless communications |
JP5682536B2 (ja) * | 2011-10-24 | 2015-03-11 | 株式会社Jvcケンウッド | 送信装置、受信装置、送信方法、受信方法 |
KR101275087B1 (ko) * | 2011-10-28 | 2013-06-17 | (주)에프씨아이 | 오에프디엠 수신기 |
CN102611465B (zh) * | 2012-04-07 | 2014-08-06 | 西安电子科技大学 | 结构化多元非规则重复累积码的编码器与编码方法 |
US8896521B2 (en) | 2012-04-24 | 2014-11-25 | Qualcomm Mems Technologies, Inc. | Metal-insulator-metal capacitors on glass substrates |
US10115671B2 (en) | 2012-08-03 | 2018-10-30 | Snaptrack, Inc. | Incorporation of passives and fine pitch through via for package on package |
CN103018721B (zh) * | 2012-12-11 | 2014-06-18 | 电子科技大学 | 一种mimo-oth雷达波形的生成方法 |
CN104335534B (zh) | 2013-02-28 | 2017-11-28 | 华为技术有限公司 | 数据发送方法、接收方法及设备 |
US9871683B2 (en) | 2013-05-07 | 2018-01-16 | Lg Electronics Inc. | Method and device for transmitting data unit |
KR101486148B1 (ko) * | 2013-07-10 | 2015-01-26 | 포항공과대학교 산학협력단 | 무선 통신 시스템의 부반송파간 간섭 제거 방법 및 이를 수행하는 장치 |
JP6603219B2 (ja) * | 2013-08-19 | 2019-11-06 | コーヒレント・ロジックス・インコーポレーテッド | 多数の無線環境で動作するためのパラメータ化されたラジオ波形 |
WO2015038647A2 (en) | 2013-09-10 | 2015-03-19 | Marvell World Trade Ltd. | Extended guard interval for outdoor wlan |
EP3700155A1 (en) | 2013-10-25 | 2020-08-26 | Marvell World Trade Ltd. | Range extension mode for wifi |
US10218822B2 (en) | 2013-10-25 | 2019-02-26 | Marvell World Trade Ltd. | Physical layer frame format for WLAN |
US10194006B2 (en) | 2013-10-25 | 2019-01-29 | Marvell World Trade Ltd. | Physical layer frame format for WLAN |
US9755795B2 (en) * | 2013-12-18 | 2017-09-05 | Huawei Technologies Co., Ltd. | System and method for WLAN OFDMA design of subcarrier groups and frame format |
US11309998B2 (en) * | 2014-02-03 | 2022-04-19 | Nxp Usa, Inc. | Hybrid automatic repeat request for wireless local area network |
US10142067B2 (en) * | 2014-04-16 | 2018-11-27 | Marvell World Trade Ltd. | Determining a number of orthogonal frequency division multiplexing (OFDM) symbols in a packet |
CN110034794B (zh) * | 2014-04-24 | 2021-08-31 | 松下电器(美国)知识产权公司 | 发送方法、发送装置、接收方法及接收装置 |
US11855818B1 (en) | 2014-04-30 | 2023-12-26 | Marvell Asia Pte Ltd | Adaptive orthogonal frequency division multiplexing (OFDM) numerology in a wireless communication network |
CN106716945B (zh) | 2014-06-11 | 2020-10-09 | 马维尔国际有限公司 | 用于生成物理层数据单元的方法 |
MX2017001613A (es) | 2014-08-07 | 2018-01-24 | Coherent Logix Inc | Tamas de radio de multipartición. |
KR102642932B1 (ko) * | 2014-08-07 | 2024-03-05 | 원 미디어, 엘엘씨 | 유연한 직교 주파수 분할 멀티플렉싱 물리 전송 데이터 프레임의 동적 구성 방법 |
AU2015328533B2 (en) | 2014-10-08 | 2019-11-21 | Atlas Global Technologies LLC. | System and method for synchronization for OFDMA transmission |
CN107005980B (zh) | 2014-11-24 | 2021-03-16 | 瑞典爱立信有限公司 | 用于传输和接收时频资源的方法和设备 |
WO2016085381A1 (en) | 2014-11-24 | 2016-06-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission of a signal according to a single- or multi-carrier modulation scheme |
US10574410B2 (en) | 2014-11-24 | 2020-02-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission and reception in a determined third set of time-frequency resources |
US10187236B2 (en) | 2014-11-24 | 2019-01-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication node and method therein for transmission using a precoded multi-carrier modulation scheme in a wireless communication network |
US9918302B2 (en) | 2014-12-12 | 2018-03-13 | Qualcomm Incorporated | Techniques for managing transmissions in an unlicensed radio frequency spectrum band |
CN105790819B (zh) * | 2014-12-25 | 2023-05-19 | 锐迪科(重庆)微电子科技有限公司 | 一种mimo信号接收方法和装置 |
US10079918B2 (en) | 2015-02-17 | 2018-09-18 | Marvell World Trade Ltd. | Block coding scheme for PHY data unit transmission |
CN107852315A (zh) * | 2015-06-05 | 2018-03-27 | 马维尔国际贸易有限公司 | 音调块和空间流分配 |
US9935737B2 (en) * | 2015-06-24 | 2018-04-03 | Intel IP Corporation | Access point (AP), user station (STA) and method for spatial modulation orthogonal frequency division multiplexing (SM-OFDM) communication |
WO2017011274A1 (en) * | 2015-07-10 | 2017-01-19 | Interdigital Patent Holdings, Inc. | Methods for resource allocation of an ofdma wlan system |
EP3326342B1 (en) * | 2015-07-20 | 2019-09-25 | Telefonaktiebolaget LM Ericsson (publ) | Transceiver architecture that maintains legacy timing by inserting and removing cyclic prefix at legacy sampling rate |
DE102015222308A1 (de) * | 2015-11-12 | 2017-05-18 | Volkswagen Aktiengesellschaft | Vorrichtung, Verfahren und Computerprogramm zur Frequenzbandauswahl |
CN106712826B (zh) | 2015-11-13 | 2020-09-04 | 华为技术有限公司 | 数据传输方法和装置 |
WO2017126074A1 (ja) * | 2016-01-21 | 2017-07-27 | 富士通株式会社 | 送信装置、受信装置、無線通信システムおよび処理方法 |
US10944608B2 (en) | 2016-03-02 | 2021-03-09 | Lg Electronics Inc. | Method for transmitting and receiving control channel in wireless communication system and device for supporting same |
EP3427457B1 (fr) * | 2016-03-11 | 2020-09-09 | Orange | Procédé et dispositif de transmission multiservice avec modulation fc-ofdm et récepteur correspondant |
US9848342B1 (en) * | 2016-07-20 | 2017-12-19 | Ccip, Llc | Excursion compensation in multipath communication systems having performance requirements parameters |
KR20190022466A (ko) | 2016-06-20 | 2019-03-06 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | 정보 전송 방법 및 장치 |
KR101883064B1 (ko) * | 2016-09-21 | 2018-07-27 | 연세대학교 산학협력단 | 무선 통신 시스템에서 하향링크 프리앰블 생성 및 전송 방법 |
AU2017354782A1 (en) | 2016-11-04 | 2019-05-23 | Telefonaktiebolaget Lm Ericsson (Publ) | PT-RS configuration depending on scheduling parameters |
US10334515B2 (en) * | 2017-01-13 | 2019-06-25 | ENK Wireless, Inc. | Conveying information via auxiliary device selection |
JP2020057825A (ja) * | 2017-02-02 | 2020-04-09 | シャープ株式会社 | 基地局装置、端末装置、通信方法、および、集積回路 |
JP2018191033A (ja) * | 2017-04-28 | 2018-11-29 | ルネサスエレクトロニクス株式会社 | 無線送信装置、無線受信装置、及び無線送信方法 |
CN108111272B (zh) | 2017-08-09 | 2021-07-20 | 中兴通讯股份有限公司 | 参考信号配置信息的指示方法、基站及终端 |
JP6554532B2 (ja) * | 2017-12-27 | 2019-07-31 | ▲ホア▼▲ウェイ▼技術有限公司Huawei Technologies Co.,Ltd. | データ送信および受信方法およびデバイス |
US10454664B2 (en) * | 2018-01-12 | 2019-10-22 | Xiao-an Wang | Phase synchronization and channel reciprocity calibration of antennas via terminal feedback |
CN110086591B (zh) * | 2019-05-14 | 2021-10-22 | 鹰潭泰尔物联网研究中心 | 一种大规模天线系统中的导频污染抑制方法 |
CN111157964B (zh) * | 2019-12-30 | 2023-02-10 | 西安电子科技大学 | 一种基于奇异值分解的稳健的宽带频域通道校正方法 |
US11502715B2 (en) * | 2020-04-29 | 2022-11-15 | Eagle Technology, Llc | Radio frequency (RF) system including programmable processing circuit performing block coding computations and related methods |
US11411593B2 (en) | 2020-04-29 | 2022-08-09 | Eagle Technology, Llc | Radio frequency (RF) system including programmable processing circuit performing butterfly computations and related methods |
Family Cites Families (546)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4679227A (en) | 1985-05-20 | 1987-07-07 | Telebit Corporation | Ensemble modem structure for imperfect transmission media |
US4736371A (en) | 1985-12-30 | 1988-04-05 | Nec Corporation | Satellite communications system with random multiple access and time slot reservation |
JPH063956Y2 (ja) | 1986-03-14 | 1994-02-02 | 松下電工株式会社 | 電動ガレ−ジ扉 |
US4750198A (en) | 1986-12-12 | 1988-06-07 | Astronet Corporation/Plessey U.K. | Cellular radiotelephone system providing diverse separately-accessible groups of channels |
US4797879A (en) | 1987-06-05 | 1989-01-10 | American Telephone And Telegraph Company At&T Bell Laboratories | Packet switched interconnection protocols for a star configured optical lan |
JPH03104430U (ja) | 1990-02-14 | 1991-10-30 | ||
IL100213A (en) | 1990-12-07 | 1995-03-30 | Qualcomm Inc | Mikrata Kedma phone system and its antenna distribution system |
US5239677A (en) | 1991-07-01 | 1993-08-24 | Motorola, Inc. | Method and apparatus for initiating communication on an assigned frequency |
IT1250515B (it) | 1991-10-07 | 1995-04-08 | Sixtel Spa | Rete per area locale senza fili. |
US5241544A (en) | 1991-11-01 | 1993-08-31 | Motorola, Inc. | Multi-channel tdm communication system slot phase correction |
US5592490A (en) | 1991-12-12 | 1997-01-07 | Arraycomm, Inc. | Spectrally efficient high capacity wireless communication systems |
US6850252B1 (en) | 1999-10-05 | 2005-02-01 | Steven M. Hoffberg | Intelligent electronic appliance system and method |
US5295159A (en) | 1992-04-17 | 1994-03-15 | Bell Communications Research, Inc. | Coordinated coding for digital transmission |
RU2015281C1 (ru) | 1992-09-22 | 1994-06-30 | Борис Михайлович Кондрашов | Запорное устройство |
GB2300337B (en) | 1992-10-05 | 1997-03-26 | Ericsson Ge Mobile Communicat | Digital control channel |
US5404355A (en) | 1992-10-05 | 1995-04-04 | Ericsson Ge Mobile Communications, Inc. | Method for transmitting broadcast information in a digital control channel |
DE69327837T2 (de) | 1992-12-01 | 2000-10-12 | Koninkl Philips Electronics Nv | Teilband-Diversityübertragungssystem |
US5471647A (en) | 1993-04-14 | 1995-11-28 | The Leland Stanford Junior University | Method for minimizing cross-talk in adaptive transmission antennas |
US5479447A (en) | 1993-05-03 | 1995-12-26 | The Board Of Trustees Of The Leland Stanford, Junior University | Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines |
US5483667A (en) | 1993-07-08 | 1996-01-09 | Northern Telecom Limited | Frequency plan for a cellular network |
DE69423546T2 (de) | 1993-07-09 | 2000-09-21 | Koninkl Philips Electronics Nv | Telekommunikationsnetzwerk, Hauptstation und Nebenstation zum Gebrauch in solchem Netzwerk |
ZA946674B (en) | 1993-09-08 | 1995-05-02 | Qualcomm Inc | Method and apparatus for determining the transmission data rate in a multi-user communication system |
US5506861A (en) | 1993-11-22 | 1996-04-09 | Ericsson Ge Mobile Comminications Inc. | System and method for joint demodulation of CDMA signals |
US5490087A (en) | 1993-12-06 | 1996-02-06 | Motorola, Inc. | Radio channel access control |
US5418813A (en) | 1993-12-06 | 1995-05-23 | Motorola, Inc. | Method and apparatus for creating a composite waveform |
US5422733A (en) | 1994-02-04 | 1995-06-06 | Motorola, Inc. | Method and apparatus for facsimile communication of first and second type information with selective call communication systems |
US5491837A (en) | 1994-03-07 | 1996-02-13 | Ericsson Inc. | Method and system for channel allocation using power control and mobile-assisted handover measurements |
US5493712A (en) | 1994-03-23 | 1996-02-20 | At&T Corp. | Fast AGC for TDMA radio systems |
JP3055085B2 (ja) | 1994-04-22 | 2000-06-19 | 株式会社アドバンテスト | デジタル変調解析装置 |
EP0759256A4 (en) | 1994-05-02 | 1999-03-31 | Motorola Inc | METHOD AND DEVICE FOR FLEXIBLE PROTOCOL WITH SEVERAL SUB CHANNELS |
US5677909A (en) | 1994-05-11 | 1997-10-14 | Spectrix Corporation | Apparatus for exchanging data between a central station and a plurality of wireless remote stations on a time divided commnication channel |
US6157343A (en) | 1996-09-09 | 2000-12-05 | Telefonaktiebolaget Lm Ericsson | Antenna array calibration |
DE4425713C1 (de) * | 1994-07-20 | 1995-04-20 | Inst Rundfunktechnik Gmbh | Verfahren zur Vielträger Modulation und Demodulation von digital codierten Daten |
FR2724084B1 (fr) | 1994-08-31 | 1997-01-03 | Alcatel Mobile Comm France | Systeme de transmission d'informations par un canal de transmission variant dans le temps, et equipements d'emission et de reception correspondants |
US5710768A (en) | 1994-09-30 | 1998-01-20 | Qualcomm Incorporated | Method of searching for a bursty signal |
ZA957858B (en) | 1994-09-30 | 1996-04-22 | Qualcomm Inc | Multipath search processor for a spread spectrum multiple access communication system |
JP3231575B2 (ja) | 1995-04-18 | 2001-11-26 | 三菱電機株式会社 | 無線データ伝送装置 |
KR0155818B1 (ko) | 1995-04-29 | 1998-11-16 | 김광호 | 다중 반송파 전송시스템에서 적응형 전력 분배 방법 및 장치 |
US6018317A (en) | 1995-06-02 | 2000-01-25 | Trw Inc. | Cochannel signal processing system |
US5606729A (en) | 1995-06-21 | 1997-02-25 | Motorola, Inc. | Method and apparatus for implementing a received signal quality measurement in a radio communication system |
US5729542A (en) | 1995-06-28 | 1998-03-17 | Motorola, Inc. | Method and apparatus for communication system access |
US7929498B2 (en) | 1995-06-30 | 2011-04-19 | Interdigital Technology Corporation | Adaptive forward power control and adaptive reverse power control for spread-spectrum communications |
US5638369A (en) | 1995-07-05 | 1997-06-10 | Motorola, Inc. | Method and apparatus for inbound channel selection in a communication system |
DE69535033T2 (de) | 1995-07-11 | 2007-03-08 | Alcatel | Zuweisung von Kapazität bei OFDM |
GB9514659D0 (en) | 1995-07-18 | 1995-09-13 | Northern Telecom Ltd | An antenna downlink beamsteering arrangement |
US5867539A (en) | 1995-07-21 | 1999-02-02 | Hitachi America, Ltd. | Methods and apparatus for reducing the effect of impulse noise on receivers |
FI98674C (fi) | 1995-08-18 | 1997-07-25 | Nokia Mobile Phones Ltd | Menetelmä lähetystehon säätämiseksi yhteydenmuodostuksen aikana sekä solukkoradiojärjestelmä |
JP2802255B2 (ja) * | 1995-09-06 | 1998-09-24 | 株式会社次世代デジタルテレビジョン放送システム研究所 | 直交周波数分割多重伝送方式及びそれを用いる送信装置と受信装置 |
GB9521739D0 (en) | 1995-10-24 | 1996-01-03 | Nat Transcommunications Ltd | Decoding carriers encoded using orthogonal frequency division multiplexing |
US6005876A (en) | 1996-03-08 | 1999-12-21 | At&T Corp | Method and apparatus for mobile data communication |
US5699365A (en) | 1996-03-27 | 1997-12-16 | Motorola, Inc. | Apparatus and method for adaptive forward error correction in data communications |
US5799005A (en) | 1996-04-30 | 1998-08-25 | Qualcomm Incorporated | System and method for determining received pilot power and path loss in a CDMA communication system |
US5924015A (en) | 1996-04-30 | 1999-07-13 | Trw Inc | Power control method and apparatus for satellite based telecommunications system |
EP0807989B1 (en) | 1996-05-17 | 2001-06-27 | Motorola Ltd | Devices for transmitter path weights and methods therefor |
JPH09307526A (ja) | 1996-05-17 | 1997-11-28 | Mitsubishi Electric Corp | デジタル放送受信機 |
JPH09327073A (ja) | 1996-06-07 | 1997-12-16 | N T T Ido Tsushinmo Kk | Cdma移動通信システムにおけるパイロットチャネル配置および送信方法 |
FI101920B (fi) | 1996-06-07 | 1998-09-15 | Nokia Telecommunications Oy | Kanavanvarausmenetelmä pakettiverkkoa varten |
US5822374A (en) | 1996-06-07 | 1998-10-13 | Motorola, Inc. | Method for fine gains adjustment in an ADSL communications system |
US6798735B1 (en) | 1996-06-12 | 2004-09-28 | Aware, Inc. | Adaptive allocation for variable bandwidth multicarrier communication |
US6072779A (en) | 1997-06-12 | 2000-06-06 | Aware, Inc. | Adaptive allocation for variable bandwidth multicarrier communication |
US6097771A (en) | 1996-07-01 | 2000-08-01 | Lucent Technologies Inc. | Wireless communications system having a layered space-time architecture employing multi-element antennas |
JPH1028077A (ja) | 1996-07-11 | 1998-01-27 | Takuro Sato | 通信装置 |
JPH1051402A (ja) | 1996-08-01 | 1998-02-20 | Nec Corp | 受信電界検出回路 |
US6067292A (en) | 1996-08-20 | 2000-05-23 | Lucent Technologies Inc | Pilot interference cancellation for a coherent wireless code division multiple access receiver |
CA2302289C (en) | 1996-08-29 | 2005-11-08 | Gregory G. Raleigh | Spatio-temporal processing for communication |
JP2001359152A (ja) | 2000-06-14 | 2001-12-26 | Sony Corp | 無線通信システム、無線基地局装置、無線移動局装置、無線ゾーン割当て方法及び無線通信方法 |
JP2846860B2 (ja) | 1996-10-01 | 1999-01-13 | ユニデン株式会社 | スペクトル拡散通信方式を用いた送信機、受信機、通信システム及び通信方法 |
US6275543B1 (en) | 1996-10-11 | 2001-08-14 | Arraycomm, Inc. | Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
TW496620U (en) | 1996-10-16 | 2002-07-21 | Behavior Tech Computer Corp | Wireless data transmitting apparatus |
US5886988A (en) | 1996-10-23 | 1999-03-23 | Arraycomm, Inc. | Channel assignment and call admission control for spatial division multiple access communication systems |
US6049548A (en) | 1996-11-22 | 2000-04-11 | Stanford Telecommunications, Inc. | Multi-access CS-P/CD-E system and protocols on satellite channels applicable to a group of mobile users in close proximity |
CA2272930C (en) * | 1996-11-26 | 2003-08-12 | Trw Inc. | Cochannel signal processing system |
US5896376A (en) | 1996-12-13 | 1999-04-20 | Ericsson Inc. | Optimal use of logical channels within a mobile telecommunications network |
US6232918B1 (en) | 1997-01-08 | 2001-05-15 | Us Wireless Corporation | Antenna array calibration in wireless communication systems |
US5912876A (en) * | 1997-01-15 | 1999-06-15 | Ericsson, Inc. | Method and apparatus for channel estimation |
JPH10209956A (ja) | 1997-01-28 | 1998-08-07 | Nippon Telegr & Teleph Corp <Ntt> | 無線パケット通信方法 |
US6128276A (en) | 1997-02-24 | 2000-10-03 | Radix Wireless, Inc. | Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays |
AU688228B1 (en) * | 1997-02-25 | 1998-03-05 | Nokia Telecommunications Oy | A system and method of estimating CIR |
JPH10303794A (ja) | 1997-02-27 | 1998-11-13 | Mitsubishi Electric Corp | 既知系列検出器 |
US6084915A (en) | 1997-03-03 | 2000-07-04 | 3Com Corporation | Signaling method having mixed-base shell map indices |
US6175550B1 (en) * | 1997-04-01 | 2001-01-16 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof |
KR100267856B1 (ko) | 1997-04-16 | 2000-10-16 | 윤종용 | 이동통신시스템에서오버헤드채널관리방법및장치 |
US6308080B1 (en) | 1997-05-16 | 2001-10-23 | Texas Instruments Incorporated | Power control in point-to-multipoint systems |
US6347217B1 (en) | 1997-05-22 | 2002-02-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Link quality reporting using frame erasure rates |
US6008760A (en) | 1997-05-23 | 1999-12-28 | Genghis Comm | Cancellation system for frequency reuse in microwave communications |
FR2764143A1 (fr) | 1997-05-27 | 1998-12-04 | Philips Electronics Nv | Procede de determination d'un format d'emission de symboles dans un systeme de transmission et systeme |
US6141555A (en) | 1997-06-09 | 2000-10-31 | Nec Corporation | Cellular communication system, and mobile and base stations used in the same |
US5867478A (en) | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
US6067458A (en) | 1997-07-01 | 2000-05-23 | Qualcomm Incorporated | Method and apparatus for pre-transmission power control using lower rate for high rate communication |
US6108369A (en) | 1997-07-11 | 2000-08-22 | Telefonaktiebolaget Lm Ericsson | Channelization code allocation for radio communication systems |
US6333953B1 (en) | 1997-07-21 | 2001-12-25 | Ericsson Inc. | System and methods for selecting an appropriate detection technique in a radiocommunication system |
EP0895387A1 (de) | 1997-07-28 | 1999-02-03 | Deutsche Thomson-Brandt Gmbh | Erkennung des Übertragungsmodus eines DVB-Signales |
US6141542A (en) | 1997-07-31 | 2000-10-31 | Motorola, Inc. | Method and apparatus for controlling transmit diversity in a communication system |
CN1086061C (zh) | 1997-08-12 | 2002-06-05 | 鸿海精密工业股份有限公司 | 电连接器的固持装置 |
JP2991167B2 (ja) | 1997-08-27 | 1999-12-20 | 三菱電機株式会社 | Tdma可変スロット割当方法 |
US6131016A (en) | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
EP0899896A1 (de) | 1997-08-27 | 1999-03-03 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur Schätzung räumlicher Parameter von Überstragungskanälen |
US6167031A (en) | 1997-08-29 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for selecting a combination of modulation and channel coding schemes in a digital communication system |
BR9812816A (pt) | 1997-09-15 | 2000-08-08 | Adaptive Telecom Inc | Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma |
US6389000B1 (en) | 1997-09-16 | 2002-05-14 | Qualcomm Incorporated | Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers |
US6590928B1 (en) | 1997-09-17 | 2003-07-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency hopping piconets in an uncoordinated wireless multi-user system |
AUPO932297A0 (en) | 1997-09-19 | 1997-10-09 | Commonwealth Scientific And Industrial Research Organisation | Medium access control protocol for data communications |
KR100234329B1 (ko) | 1997-09-30 | 1999-12-15 | 윤종용 | Ofdm 시스템 수신기의 fft 윈도우 위치 복원장치 및 그 방법_ |
US6178196B1 (en) | 1997-10-06 | 2001-01-23 | At&T Corp. | Combined interference cancellation and maximum likelihood decoding of space-time block codes |
US6574211B2 (en) | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
US6377812B1 (en) | 1997-11-20 | 2002-04-23 | University Of Maryland | Combined power control and space-time diversity in mobile cellular communications |
US6122247A (en) | 1997-11-24 | 2000-09-19 | Motorola Inc. | Method for reallocating data in a discrete multi-tone communication system |
JPH11163823A (ja) | 1997-11-26 | 1999-06-18 | Victor Co Of Japan Ltd | 直交周波数分割多重信号伝送方法、送信装置及び受信装置 |
US5936569A (en) | 1997-12-02 | 1999-08-10 | Nokia Telecommunications Oy | Method and arrangement for adjusting antenna pattern |
US6154661A (en) | 1997-12-10 | 2000-11-28 | Arraycomm, Inc. | Transmitting on the downlink using one or more weight vectors determined to achieve a desired radiation pattern |
US6084917A (en) | 1997-12-16 | 2000-07-04 | Integrated Telecom Express | Circuit for configuring and dynamically adapting data and energy parameters in a multi-channel communications system |
US5929810A (en) | 1997-12-19 | 1999-07-27 | Northrop Grumman Corporation | In-flight antenna optimization |
US6175588B1 (en) | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
US6088387A (en) | 1997-12-31 | 2000-07-11 | At&T Corp. | Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder |
EP2254301B1 (en) * | 1998-01-06 | 2013-06-19 | Mosaid Technologies Incorporated | Multicarrier modulation system with variable symbol rates |
JP3724940B2 (ja) | 1998-01-08 | 2005-12-07 | 株式会社東芝 | Ofdmダイバーシチ受信装置 |
US6608874B1 (en) | 1998-01-12 | 2003-08-19 | Hughes Electronics Corporation | Method and apparatus for quadrature multi-pulse modulation of data for spectrally efficient communication |
US5982327A (en) | 1998-01-12 | 1999-11-09 | Motorola, Inc. | Adaptive array method, device, base station and subscriber unit |
EP0930752A3 (en) | 1998-01-14 | 1999-10-20 | Motorola, Inc. | Method for allocating data and power in a discrete multitone communication system |
US5973638A (en) | 1998-01-30 | 1999-10-26 | Micronetics Wireless, Inc. | Smart antenna channel simulator and test system |
US7787514B2 (en) * | 1998-02-12 | 2010-08-31 | Lot 41 Acquisition Foundation, Llc | Carrier interferometry coding with applications to cellular and local area networks |
EP0938208A1 (en) * | 1998-02-22 | 1999-08-25 | Sony International (Europe) GmbH | Multicarrier transmission, compatible with the existing GSM system |
JP3082756B2 (ja) | 1998-02-27 | 2000-08-28 | 日本電気株式会社 | マルチキャリア伝送システム及びその方法 |
WO1999044379A1 (en) | 1998-02-27 | 1999-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple access categorization for mobile station |
US6141388A (en) | 1998-03-11 | 2000-10-31 | Ericsson Inc. | Received signal quality determination method and systems for convolutionally encoded communication channels |
US6058107A (en) | 1998-04-08 | 2000-05-02 | Motorola, Inc. | Method for updating forward power control in a communication system |
US6317466B1 (en) | 1998-04-15 | 2001-11-13 | Lucent Technologies Inc. | Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver |
US6615024B1 (en) | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
US7123628B1 (en) | 1998-05-06 | 2006-10-17 | Lg Electronics Inc. | Communication system with improved medium access control sub-layer |
JP3286247B2 (ja) | 1998-05-08 | 2002-05-27 | 松下電器産業株式会社 | 無線通信システム |
US6205410B1 (en) | 1998-06-01 | 2001-03-20 | Globespan Semiconductor, Inc. | System and method for bit loading with optimal margin assignment |
WO1999066661A1 (en) | 1998-06-19 | 1999-12-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Frame synchronization techniques and systems for spread spectrum radiocommunication |
US6795424B1 (en) | 1998-06-30 | 2004-09-21 | Tellabs Operations, Inc. | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems |
JP2000092009A (ja) | 1998-07-13 | 2000-03-31 | Sony Corp | 通信方法、送信機及び受信機 |
CN1192651C (zh) | 1998-07-16 | 2005-03-09 | 三星电子株式会社 | 移动通信系统中处理分组数据的装置及方法 |
US6154443A (en) | 1998-08-11 | 2000-11-28 | Industrial Technology Research Institute | FFT-based CDMA RAKE receiver system and method |
US6594620B1 (en) | 1998-08-17 | 2003-07-15 | Aspen Technology, Inc. | Sensor validation apparatus and method |
MXPA01001753A (es) | 1998-08-18 | 2002-06-04 | Beamreach Networks Inc | Tecnologia de comunicacion multitono de separacion de portadora apilada. |
KR100429540B1 (ko) | 1998-08-26 | 2004-08-09 | 삼성전자주식회사 | 이동통신시스템의패킷데이터통신장치및방법 |
US6515617B1 (en) | 1998-09-01 | 2003-02-04 | Hughes Electronics Corporation | Method and system for position determination using geostationary earth orbit satellite |
DE19842712C1 (de) | 1998-09-17 | 2000-05-04 | Siemens Ag | Verfahren und Anordnung zur Minimierung des Autokorrelationsfehlers bei der Demodulation eines Spreizspektrum-Signals unter Mehrwegeausbreitung |
US6292917B1 (en) | 1998-09-30 | 2001-09-18 | Agere Systems Guardian Corp. | Unequal error protection for digital broadcasting using channel classification |
DE69828608T2 (de) | 1998-10-05 | 2005-12-29 | Sony International (Europe) Gmbh | Aufteilungsschema für ein Zufallszugriffskanal in einem CDMA System |
EP0993212B1 (en) | 1998-10-05 | 2006-05-24 | Sony Deutschland GmbH | Random access channel partitioning scheme for CDMA system |
US6711121B1 (en) | 1998-10-09 | 2004-03-23 | At&T Corp. | Orthogonal code division multiplexing for twisted pair channels |
EP1108317B1 (de) | 1998-10-27 | 2002-08-28 | Siemens Aktiengesellschaft | Kanalzuweisungsverfahren und vorrichtung für kodierte und kombinierte informationssätze |
JP4287536B2 (ja) | 1998-11-06 | 2009-07-01 | パナソニック株式会社 | Ofdm送受信装置及びofdm送受信方法 |
ES2185244T3 (es) | 1998-12-03 | 2003-04-16 | Fraunhofer Ges Forschung | Aparato y procedimiento para transmitir informacion y aparato y procedimiento para recibir informacion. |
GB9827182D0 (en) | 1998-12-10 | 1999-02-03 | Philips Electronics Nv | Radio communication system |
FI108588B (fi) | 1998-12-15 | 2002-02-15 | Nokia Corp | Menetelmä ja radiojärjestelmä digitaalisen signaalin siirtoon |
JP2000244441A (ja) * | 1998-12-22 | 2000-09-08 | Matsushita Electric Ind Co Ltd | Ofdm送受信装置 |
US6266528B1 (en) | 1998-12-23 | 2001-07-24 | Arraycomm, Inc. | Performance monitor for antenna arrays |
US6310909B1 (en) | 1998-12-23 | 2001-10-30 | Broadcom Corporation | DSL rate adaptation |
US6463290B1 (en) | 1999-01-08 | 2002-10-08 | Trueposition, Inc. | Mobile-assisted network based techniques for improving accuracy of wireless location system |
US6348036B1 (en) | 1999-01-24 | 2002-02-19 | Genzyme Corporation | Surgical retractor and tissue stabilization device |
RU2152132C1 (ru) | 1999-01-26 | 2000-06-27 | Государственное унитарное предприятие Воронежский научно-исследовательский институт связи | Линия радиосвязи с пространственной модуляцией |
JP3619729B2 (ja) | 2000-01-19 | 2005-02-16 | 松下電器産業株式会社 | 無線受信装置および無線受信方法 |
KR100651457B1 (ko) | 1999-02-13 | 2006-11-28 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템의 불연속 전송모드에서 연속적인 외부순환 전력제어장치 및 방법 |
US6574267B1 (en) | 1999-03-22 | 2003-06-03 | Golden Bridge Technology, Inc. | Rach ramp-up acknowledgement |
US6169759B1 (en) | 1999-03-22 | 2001-01-02 | Golden Bridge Technology | Common packet channel |
US6346910B1 (en) | 1999-04-07 | 2002-02-12 | Tei Ito | Automatic array calibration scheme for wireless point-to-multipoint communication networks |
US6363267B1 (en) | 1999-04-07 | 2002-03-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile terminal decode failure procedure in a wireless local area network |
CA2371958C (en) | 1999-04-12 | 2006-07-25 | Samsung Electronics Co., Ltd. | Apparatus and method for gated transmission in a cdma communication system |
EP1075093A1 (en) | 1999-08-02 | 2001-02-07 | Interuniversitair Micro-Elektronica Centrum Vzw | A method and apparatus for multi-user transmission |
US6594798B1 (en) | 1999-05-21 | 2003-07-15 | Microsoft Corporation | Receiver-driven layered error correction multicast over heterogeneous packet networks |
US6532562B1 (en) | 1999-05-21 | 2003-03-11 | Microsoft Corp | Receiver-driven layered error correction multicast over heterogeneous packet networks |
US6594473B1 (en) | 1999-05-28 | 2003-07-15 | Texas Instruments Incorporated | Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities |
KR100605978B1 (ko) | 1999-05-29 | 2006-07-28 | 삼성전자주식회사 | 부호분할다중접속 이동통신시스템의 불연속 전송모드에서 연속적인 외부순환 전력제어를 위한 송수신 장치 및 방법 |
US7072410B1 (en) | 1999-06-01 | 2006-07-04 | Peter Monsen | Multiple access system and method for multibeam digital radio systems |
US6141567A (en) | 1999-06-07 | 2000-10-31 | Arraycomm, Inc. | Apparatus and method for beamforming in a changing-interference environment |
US6385264B1 (en) | 1999-06-08 | 2002-05-07 | Qualcomm Incorporated | Method and apparatus for mitigating interference between base stations in a wideband CDMA system |
US6976262B1 (en) | 1999-06-14 | 2005-12-13 | Sun Microsystems, Inc. | Web-based enterprise management with multiple repository capability |
EP1114530B1 (en) | 1999-07-08 | 2005-02-02 | Samsung Electronics Co., Ltd. | Data rate detection device and method for a mobile communication system |
US6163296A (en) | 1999-07-12 | 2000-12-19 | Lockheed Martin Corp. | Calibration and integrated beam control/conditioning system for phased-array antennas |
RU2168278C2 (ru) | 1999-07-16 | 2001-05-27 | Корпорация "Самсунг Электроникс" | Способ произвольного доступа абонентов мобильной станции |
US6532225B1 (en) | 1999-07-27 | 2003-03-11 | At&T Corp | Medium access control layer for packetized wireless systems |
US6067290A (en) | 1999-07-30 | 2000-05-23 | Gigabit Wireless, Inc. | Spatial multiplexing in a cellular network |
US7027464B1 (en) * | 1999-07-30 | 2006-04-11 | Matsushita Electric Industrial Co., Ltd. | OFDM signal transmission scheme, and OFDM signal transmitter/receiver |
JP2001044930A (ja) | 1999-07-30 | 2001-02-16 | Matsushita Electric Ind Co Ltd | 無線通信装置および無線通信方法 |
US6721339B2 (en) | 1999-08-17 | 2004-04-13 | Lucent Technologies Inc. | Method of providing downlink transmit diversity |
US6735188B1 (en) | 1999-08-27 | 2004-05-11 | Tachyon, Inc. | Channel encoding and decoding method and apparatus |
US6278726B1 (en) | 1999-09-10 | 2001-08-21 | Interdigital Technology Corporation | Interference cancellation in a spread spectrum communication system |
US6115406A (en) | 1999-09-10 | 2000-09-05 | Interdigital Technology Corporation | Transmission using an antenna array in a CDMA communication system |
US6426971B1 (en) | 1999-09-13 | 2002-07-30 | Qualcomm Incorporated | System and method for accurately predicting signal to interference and noise ratio to improve communications system performance |
SG80071A1 (en) | 1999-09-24 | 2001-04-17 | Univ Singapore | Downlink beamforming method |
JP3421671B2 (ja) | 1999-09-30 | 2003-06-30 | 独立行政法人通信総合研究所 | 通信システム、選択装置、送信装置、受信装置、選択方法、送信方法、受信方法、および、情報記録媒体 |
IL148917A0 (en) | 1999-10-02 | 2002-09-12 | Samsung Electronics Co Ltd | Apparatus and method for gating data on a control channel in a cdma communication system |
DE19950005A1 (de) | 1999-10-18 | 2001-04-19 | Bernhard Walke | Verfahren zum Betrieb drahtloser Basisstationen für paketvermittelnde Funksysteme mit garantierter Dienstgüte |
DE19951525C2 (de) | 1999-10-26 | 2002-01-24 | Siemens Ag | Verfahren zum Kalibrieren einer elektronisch phasengesteuerten Gruppenantenne in Funk-Kommunikationssystemen |
US6492942B1 (en) | 1999-11-09 | 2002-12-10 | Com Dev International, Inc. | Content-based adaptive parasitic array antenna system |
JP3416597B2 (ja) | 1999-11-19 | 2003-06-16 | 三洋電機株式会社 | 無線基地局 |
US7088671B1 (en) | 1999-11-24 | 2006-08-08 | Peter Monsen | Multiple access technique for downlink multibeam digital radio systems |
US7110785B1 (en) | 1999-12-03 | 2006-09-19 | Nortel Networks Limited | Performing power control in a mobile communications system |
US6351499B1 (en) | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6298092B1 (en) | 1999-12-15 | 2001-10-02 | Iospan Wireless, Inc. | Methods of controlling communication parameters of wireless systems |
EP1109326A1 (en) | 1999-12-15 | 2001-06-20 | Lucent Technologies Inc. | Peamble detector for a CDMA receiver |
JP3975629B2 (ja) | 1999-12-16 | 2007-09-12 | ソニー株式会社 | 画像復号装置及び画像復号方法 |
US6298035B1 (en) | 1999-12-21 | 2001-10-02 | Nokia Networks Oy | Estimation of two propagation channels in OFDM |
JP2001186051A (ja) | 1999-12-24 | 2001-07-06 | Toshiba Corp | データ信号判定回路及び方法 |
WO2001048959A1 (fr) | 1999-12-28 | 2001-07-05 | Ntt Docomo, Inc. | Procede de recherche de trajet, procede d'estimation de canal et dispositif de communication |
US6718160B2 (en) | 1999-12-29 | 2004-04-06 | Airnet Communications Corp. | Automatic configuration of backhaul and groundlink frequencies in a wireless repeater |
US6888809B1 (en) | 2000-01-13 | 2005-05-03 | Lucent Technologies Inc. | Space-time processing for multiple-input, multiple-output, wireless systems |
US7254171B2 (en) | 2000-01-20 | 2007-08-07 | Nortel Networks Limited | Equaliser for digital communications systems and method of equalisation |
JP3581072B2 (ja) | 2000-01-24 | 2004-10-27 | 株式会社エヌ・ティ・ティ・ドコモ | チャネル構成方法及びその方法を利用する基地局 |
KR100325367B1 (ko) | 2000-01-28 | 2002-03-04 | 박태진 | 직교 주파수 분할 다중 통신 시스템에서의 비트 오율 측정장치및 방법 |
JP2001217896A (ja) | 2000-01-31 | 2001-08-10 | Matsushita Electric Works Ltd | 無線データ通信システム |
US7003044B2 (en) | 2000-02-01 | 2006-02-21 | Sasken Communication Technologies Ltd. | Method for allocating bits and power in multi-carrier communication system |
FI117465B (fi) | 2000-02-03 | 2006-10-31 | Danisco Sweeteners Oy | Menetelmä pureskeltavien ytimien kovapinnoittamiseksi |
US6868120B2 (en) | 2000-02-08 | 2005-03-15 | Clearwire Corporation | Real-time system for measuring the Ricean K-factor |
US6704374B1 (en) | 2000-02-16 | 2004-03-09 | Thomson Licensing S.A. | Local oscillator frequency correction in an orthogonal frequency division multiplexing system |
DE10008653A1 (de) | 2000-02-24 | 2001-09-06 | Siemens Ag | Verbesserungen an einem Funkkommunikationssystem |
US6956814B1 (en) | 2000-02-29 | 2005-10-18 | Worldspace Corporation | Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system |
JP2001244879A (ja) | 2000-03-02 | 2001-09-07 | Matsushita Electric Ind Co Ltd | 送信電力制御装置及びその方法 |
US6963546B2 (en) | 2000-03-15 | 2005-11-08 | Interdigital Technology Corp. | Multi-user detection using an adaptive combination of joint detection and successive interface cancellation |
EP1137217A1 (en) | 2000-03-20 | 2001-09-26 | Telefonaktiebolaget Lm Ericsson | ARQ parameter negociation in a data packet transmission system using link adaptation |
US7149253B2 (en) | 2000-03-21 | 2006-12-12 | Texas Instruments Incorporated | Wireless communication |
US6952454B1 (en) | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
US6473467B1 (en) | 2000-03-22 | 2002-10-29 | Qualcomm Incorporated | Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system |
US20020154705A1 (en) | 2000-03-22 | 2002-10-24 | Walton Jay R. | High efficiency high performance communications system employing multi-carrier modulation |
DE10014676C2 (de) | 2000-03-24 | 2002-02-07 | Polytrax Inf Technology Ag | Datenübertragung über ein Stromversorgungsnetz |
US7113499B2 (en) | 2000-03-29 | 2006-09-26 | Texas Instruments Incorporated | Wireless communication |
DE60043629D1 (de) | 2000-04-04 | 2010-02-11 | Sony Deutschland Gmbh | Ereignisgesteuerte Änderung der Zugriffsdienstklasse in einem Zufallzugriffskanal |
US7403748B1 (en) | 2000-04-07 | 2008-07-22 | Nokia Coporation | Multi-antenna transmission method and system |
US7289570B2 (en) | 2000-04-10 | 2007-10-30 | Texas Instruments Incorporated | Wireless communications |
US6757263B1 (en) | 2000-04-13 | 2004-06-29 | Motorola, Inc. | Wireless repeating subscriber units |
SE518028C2 (sv) | 2000-04-17 | 2002-08-20 | Ericsson Telefon Ab L M | Förfarande och metod för att undvika överbelastning i ett cellulärt radiosystem med makrodiversitet |
EP2267963A3 (en) | 2000-04-18 | 2011-03-09 | Aware, Inc. | Multicarrier system with a plurality of SNR margins |
US6751199B1 (en) | 2000-04-24 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for a rate control in a high data rate communication system |
ES2258747T3 (es) | 2000-04-25 | 2006-09-01 | Nortel Networks Limited | Sistema de comunicaciones por radio con retrasos reducidos para transmision de datos. |
US7068628B2 (en) | 2000-05-22 | 2006-06-27 | At&T Corp. | MIMO OFDM system |
DE60135183D1 (de) | 2000-05-23 | 2008-09-18 | Ntt Docomo Inc | Raummultiplex Übertragungsverfahren und System |
US7139324B1 (en) | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US6744811B1 (en) | 2000-06-12 | 2004-06-01 | Actelis Networks Inc. | Bandwidth management for DSL modem pool |
CN1172463C (zh) | 2000-06-12 | 2004-10-20 | 三星电子株式会社 | 在码分多址移动通信系统中分配上行链路随机接入信道的方法 |
US7248841B2 (en) | 2000-06-13 | 2007-07-24 | Agee Brian G | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks |
US6317467B1 (en) | 2000-06-14 | 2001-11-13 | Lloyd C. Cox | Beamforming and interference cancellation system using general purpose filter architecture |
US6628702B1 (en) | 2000-06-14 | 2003-09-30 | Qualcomm, Incorporated | Method and apparatus for demodulating signals processed in a transmit diversity mode |
US6760313B1 (en) | 2000-06-19 | 2004-07-06 | Qualcomm Incorporated | Method and apparatus for adaptive rate selection in a communication system |
SE519303C2 (sv) | 2000-06-20 | 2003-02-11 | Ericsson Telefon Ab L M | Anordning för smalbandig kommunikation i ett multicarrier- system |
WO2002003557A1 (en) | 2000-06-30 | 2002-01-10 | Iospan Wireless, Inc. | Method and system for mode adaptation in wireless communication |
US6891858B1 (en) | 2000-06-30 | 2005-05-10 | Cisco Technology Inc. | Dynamic modulation of modulation profiles for communication channels in an access network |
CN1140147C (zh) | 2000-07-01 | 2004-02-25 | 信息产业部电信传输研究所 | 一种外环功率控制的方法和系统 |
DE60121055T2 (de) | 2000-07-03 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd., Kadoma | Basisstationsvorrichtung und Funkkommunikationsverfahren zur Hochgeschwindigkeitsdatenübertragung |
JP3583353B2 (ja) | 2000-07-03 | 2004-11-04 | 松下電器産業株式会社 | 通信端末装置および基地局装置 |
KR100627188B1 (ko) | 2000-07-04 | 2006-09-22 | 에스케이 텔레콤주식회사 | 무선통신 역방향 동기 방식에서의 코드 할당 방법 |
EP2262151B1 (en) | 2000-07-05 | 2017-10-04 | Sony Deutschland Gmbh | Pilot pattern design for multiple antennas in an OFDM system |
TR201816007T4 (tr) | 2000-07-12 | 2018-11-21 | Qualcomm Inc | MIMO sisteminde pilot sinyallerin üretilmesi için yöntem ve aparat |
FI109393B (fi) | 2000-07-14 | 2002-07-15 | Nokia Corp | Menetelmä mediavirran enkoodaamiseksi skaalautuvasti, skaalautuva enkooderi ja päätelaite |
EP1303917B1 (en) | 2000-07-17 | 2011-11-30 | Koninklijke Philips Electronics N.V. | Unequal error protection for packets with variable length |
KR100493152B1 (ko) | 2000-07-21 | 2005-06-02 | 삼성전자주식회사 | 이동 통신 시스템에서의 전송 안테나 다이버시티 방법 및이를 위한 기지국 장치 및 이동국 장치 |
EP1176750A1 (en) | 2000-07-25 | 2002-01-30 | Telefonaktiebolaget L M Ericsson (Publ) | Link quality determination of a transmission link in an OFDM transmission system |
DE60035683T2 (de) | 2000-08-01 | 2008-06-26 | Sony Deutschland Gmbh | Frequenzwiederverwendungsschema für OFDM-Systeme |
US6721267B2 (en) * | 2000-08-01 | 2004-04-13 | Motorola, Inc. | Time and bandwidth scalable slot format for mobile data system |
US6920192B1 (en) | 2000-08-03 | 2005-07-19 | Lucent Technologies Inc. | Adaptive antenna array methods and apparatus for use in a multi-access wireless communication system |
EP1744575B1 (en) | 2000-08-03 | 2010-03-17 | Infineon Technologies AG | Configurable modulator |
WO2002015433A1 (fr) | 2000-08-10 | 2002-02-21 | Fujitsu Limited | Dispositif de communication pour emission en diversite |
US6582088B2 (en) | 2000-08-10 | 2003-06-24 | Benq Corporation | Optical path folding apparatus |
US7013165B2 (en) | 2000-08-16 | 2006-03-14 | Samsung Electronics Co., Ltd. | Antenna array apparatus and beamforming method using GPS signal for base station in mobile telecommunication system |
KR100526499B1 (ko) | 2000-08-22 | 2005-11-08 | 삼성전자주식회사 | 두 개 이상 안테나를 사용하는 안테나 전송 다이버시티방법 및 장치 |
EP1182799A3 (en) | 2000-08-22 | 2002-06-26 | Lucent Technologies Inc. | Method for enhancing mobile cdma communications using space-time transmit diversity |
JP3886709B2 (ja) | 2000-08-29 | 2007-02-28 | 三菱電機株式会社 | スペクトル拡散受信装置 |
IT1318790B1 (it) | 2000-08-29 | 2003-09-10 | Cit Alcatel | Metodo per gestire il cambio di allocazione dei time-slot in reti adanello ms-spring di tipo transoceanico. |
US7120657B2 (en) | 2000-08-29 | 2006-10-10 | Science Applications International Corporation | System and method for adaptive filtering |
US6937592B1 (en) | 2000-09-01 | 2005-08-30 | Intel Corporation | Wireless communications system that supports multiple modes of operation |
JP2002077098A (ja) | 2000-09-01 | 2002-03-15 | Mitsubishi Electric Corp | 通信装置および通信方法 |
US7233625B2 (en) | 2000-09-01 | 2007-06-19 | Nortel Networks Limited | Preamble design for multiple input—multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system |
US6985434B2 (en) | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US7009931B2 (en) | 2000-09-01 | 2006-03-07 | Nortel Networks Limited | Synchronization in a multiple-input/multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system for wireless applications |
US6850481B2 (en) | 2000-09-01 | 2005-02-01 | Nortel Networks Limited | Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system |
FR2814014B1 (fr) | 2000-09-14 | 2002-10-11 | Mitsubishi Electric Inf Tech | Methode de detection multi-utilisateur |
US6760882B1 (en) | 2000-09-19 | 2004-07-06 | Intel Corporation | Mode selection for data transmission in wireless communication channels based on statistical parameters |
US6802035B2 (en) * | 2000-09-19 | 2004-10-05 | Intel Corporation | System and method of dynamically optimizing a transmission mode of wirelessly transmitted information |
US6956897B1 (en) | 2000-09-27 | 2005-10-18 | Northwestern University | Reduced rank adaptive filter |
US7062294B1 (en) | 2000-09-29 | 2006-06-13 | Arraycomm, Llc. | Downlink transmission in a wireless data communication system having a base station with a smart antenna system |
US6650714B2 (en) | 2000-11-30 | 2003-11-18 | Arraycomm, Inc. | Spatial processing and timing estimation using a training sequence in a radio communications system |
US7043259B1 (en) | 2000-09-29 | 2006-05-09 | Arraycomm, Inc. | Repetitive paging from a wireless data base station having a smart antenna system |
US7110378B2 (en) | 2000-10-03 | 2006-09-19 | Wisconsin Alumni Research Foundation | Channel aware optimal space-time signaling for wireless communication over wideband multipath channels |
US7016296B2 (en) | 2000-10-16 | 2006-03-21 | Broadcom Corporation | Adaptive modulation for fixed wireless link in cable transmission system |
US6907270B1 (en) | 2000-10-23 | 2005-06-14 | Qualcomm Inc. | Method and apparatus for reduced rank channel estimation in a communications system |
JP4067755B2 (ja) * | 2000-10-24 | 2008-03-26 | 三菱電機株式会社 | スペクトラム拡散通信システムの受信機 |
US6369758B1 (en) | 2000-11-01 | 2002-04-09 | Unique Broadband Systems, Inc. | Adaptive antenna array for mobile communication |
JP3553038B2 (ja) | 2000-11-06 | 2004-08-11 | 株式会社エヌ・ティ・ティ・ドコモ | 信号送信方法、信号受信方法、送信装置、受信装置および記録媒体 |
US6768727B1 (en) | 2000-11-09 | 2004-07-27 | Ericsson Inc. | Fast forward link power control for CDMA system |
US8634481B1 (en) | 2000-11-16 | 2014-01-21 | Alcatel Lucent | Feedback technique for wireless systems with multiple transmit and receive antennas |
US7006464B1 (en) | 2000-11-17 | 2006-02-28 | Lucent Technologies Inc. | Downlink and uplink channel structures for downlink shared channel system |
US6980601B2 (en) | 2000-11-17 | 2005-12-27 | Broadcom Corporation | Rate adaptation and parameter optimization for multi-band single carrier transmission |
JP3695316B2 (ja) | 2000-11-24 | 2005-09-14 | 株式会社日本自動車部品総合研究所 | スペクトラム拡散受信機の相関検出器 |
US6751480B2 (en) | 2000-12-01 | 2004-06-15 | Lucent Technologies Inc. | Method for simultaneously conveying information to multiple mobiles with multiple antennas |
US8019068B2 (en) | 2000-12-01 | 2011-09-13 | Alcatel Lucent | Method of allocating power for the simultaneous downlink conveyance of information between multiple antennas and multiple destinations |
JP4505677B2 (ja) | 2000-12-06 | 2010-07-21 | ソフトバンクテレコム株式会社 | 送信ダイバーシチ装置および送信電力調整方法 |
US6952426B2 (en) | 2000-12-07 | 2005-10-04 | Nortel Networks Limited | Method and apparatus for the transmission of short data bursts in CDMA/HDR networks |
KR100353641B1 (ko) | 2000-12-21 | 2002-09-28 | 삼성전자 주식회사 | 부호분할다중접속 이동통신시스템의 기지국 전송 안테나다이버시티 장치 및 방법 |
US6850498B2 (en) | 2000-12-22 | 2005-02-01 | Intel Corporation | Method and system for evaluating a wireless link |
US20020085641A1 (en) | 2000-12-29 | 2002-07-04 | Motorola, Inc | Method and system for interference averaging in a wireless communication system |
GB0031841D0 (en) | 2000-12-29 | 2001-02-14 | Nokia Networks Oy | Interference power estimation for adaptive antenna system |
US6987819B2 (en) | 2000-12-29 | 2006-01-17 | Motorola, Inc. | Method and device for multiple input/multiple output transmit and receive weights for equal-rate data streams |
US7050510B2 (en) | 2000-12-29 | 2006-05-23 | Lucent Technologies Inc. | Open-loop diversity technique for systems employing four transmitter antennas |
US6731668B2 (en) | 2001-01-05 | 2004-05-04 | Qualcomm Incorporated | Method and system for increased bandwidth efficiency in multiple input—multiple output channels |
EP1223776A1 (en) | 2001-01-12 | 2002-07-17 | Siemens Information and Communication Networks S.p.A. | A collision free access scheduling in cellular TDMA-CDMA networks |
US6693992B2 (en) | 2001-01-16 | 2004-02-17 | Mindspeed Technologies | Line probe signal and method of use |
US6801790B2 (en) | 2001-01-17 | 2004-10-05 | Lucent Technologies Inc. | Structure for multiple antenna configurations |
US7164669B2 (en) | 2001-01-19 | 2007-01-16 | Adaptix, Inc. | Multi-carrier communication with time division multiplexing and carrier-selective loading |
US7054662B2 (en) | 2001-01-24 | 2006-05-30 | Qualcomm, Inc. | Method and system for forward link beam forming in wireless communications |
JP2002232943A (ja) | 2001-01-29 | 2002-08-16 | Sony Corp | データ送信処理方法、データ受信処理方法、送信機、受信機、およびセルラー無線通信システム |
GB0102316D0 (en) | 2001-01-30 | 2001-03-14 | Koninkl Philips Electronics Nv | Radio communication system |
US6961388B2 (en) | 2001-02-01 | 2005-11-01 | Qualcomm, Incorporated | Coding scheme for a wireless communication system |
US6885654B2 (en) | 2001-02-06 | 2005-04-26 | Interdigital Technology Corporation | Low complexity data detection using fast fourier transform of channel correlation matrix |
US7120134B2 (en) | 2001-02-15 | 2006-10-10 | Qualcomm, Incorporated | Reverse link channel architecture for a wireless communication system |
JP3736429B2 (ja) | 2001-02-21 | 2006-01-18 | 日本電気株式会社 | セルラシステム、基地局、移動局並びに通信制御方法 |
US6975868B2 (en) | 2001-02-21 | 2005-12-13 | Qualcomm Incorporated | Method and apparatus for IS-95B reverse link supplemental code channel frame validation and fundamental code channel rate decision improvement |
US7006483B2 (en) | 2001-02-23 | 2006-02-28 | Ipr Licensing, Inc. | Qualifying available reverse link coding rates from access channel power setting |
AU2002240506A1 (en) | 2001-02-26 | 2002-09-12 | Magnolia Broadband, Inc | Smart antenna based spectrum multiplexing using a pilot signal |
GB0105019D0 (en) | 2001-03-01 | 2001-04-18 | Koninkl Philips Electronics Nv | Antenna diversity in a wireless local area network |
US7039125B2 (en) | 2001-03-12 | 2006-05-02 | Analog Devices, Inc. | Equalized SNR power back-off |
EP1241824A1 (en) | 2001-03-14 | 2002-09-18 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Multiplexing method in a multicarrier transmit diversity system |
US6763244B2 (en) | 2001-03-15 | 2004-07-13 | Qualcomm Incorporated | Method and apparatus for adjusting power control setpoint in a wireless communication system |
US7046746B1 (en) | 2001-03-19 | 2006-05-16 | Cisco Systems Wireless Networking (Australia) Pty Limited | Adaptive Viterbi decoder for a wireless data network receiver |
US6478422B1 (en) | 2001-03-19 | 2002-11-12 | Richard A. Hansen | Single bifocal custom shooters glasses |
US6771706B2 (en) | 2001-03-23 | 2004-08-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
US7248638B1 (en) | 2001-03-23 | 2007-07-24 | Lsi Logic | Transmit antenna multi-mode tracking |
US7386076B2 (en) | 2001-03-29 | 2008-06-10 | Texas Instruments Incorporated | Space time encoded wireless communication system with multipath resolution receivers |
US8290098B2 (en) | 2001-03-30 | 2012-10-16 | Texas Instruments Incorporated | Closed loop multiple transmit, multiple receive antenna wireless communication system |
GB2373973B (en) * | 2001-03-30 | 2003-06-11 | Toshiba Res Europ Ltd | Adaptive antenna |
US20020176485A1 (en) | 2001-04-03 | 2002-11-28 | Hudson John E. | Multi-cast communication system and method of estimating channel impulse responses therein |
US6785513B1 (en) | 2001-04-05 | 2004-08-31 | Cowave Networks, Inc. | Method and system for clustered wireless networks |
US6859503B2 (en) * | 2001-04-07 | 2005-02-22 | Motorola, Inc. | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel |
KR100510434B1 (ko) | 2001-04-09 | 2005-08-26 | 니폰덴신뎅와 가부시키가이샤 | Ofdm신호전달 시스템, ofdm신호 송신장치 및ofdm신호 수신장치 |
FR2823620B1 (fr) | 2001-04-12 | 2003-08-15 | France Telecom | Procede de codage/decodage d'un flux de donnees numeriques codees avec entrelacement sur bits en emission et en reception multiple en presence d'interference intersymboles et systeme correspondant |
US7310304B2 (en) * | 2001-04-24 | 2007-12-18 | Bae Systems Information And Electronic Systems Integration Inc. | Estimating channel parameters in multi-input, multi-output (MIMO) systems |
FI20010874A (fi) | 2001-04-26 | 2002-10-27 | Nokia Corp | Tiedonsiirtomenetelmä ja -laitteisto |
GB0110223D0 (en) | 2001-04-26 | 2001-06-20 | Sensor Highway Ltd | Method and apparatus for leak detection and location |
US6611231B2 (en) | 2001-04-27 | 2003-08-26 | Vivato, Inc. | Wireless packet switched communication systems and networks using adaptively steered antenna arrays |
US7133459B2 (en) | 2001-05-01 | 2006-11-07 | Texas Instruments Incorporated | Space-time transmit diversity |
EP1255369A1 (en) | 2001-05-04 | 2002-11-06 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Link adaptation for wireless MIMO transmission schemes |
CN100446612C (zh) | 2001-05-04 | 2008-12-24 | 诺基亚公司 | 借助定向天线的许可控制 |
DE10122788A1 (de) | 2001-05-10 | 2002-06-06 | Basf Ag | Verfahren der kristallisativen Reinigung einer Roh-Schmelze wenigstens eines Monomeren |
US6785341B2 (en) | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
US7047016B2 (en) | 2001-05-16 | 2006-05-16 | Qualcomm, Incorporated | Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system |
US7688899B2 (en) | 2001-05-17 | 2010-03-30 | Qualcomm Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
US6751187B2 (en) | 2001-05-17 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission |
US7072413B2 (en) | 2001-05-17 | 2006-07-04 | Qualcomm, Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
US6718493B1 (en) | 2001-05-17 | 2004-04-06 | 3Com Corporation | Method and apparatus for selection of ARQ parameters and estimation of improved communications |
US7492737B1 (en) | 2001-05-23 | 2009-02-17 | Nortel Networks Limited | Service-driven air interface protocol architecture for wireless systems |
ES2188373B1 (es) | 2001-05-25 | 2004-10-16 | Diseño De Sistemas En Silencio, S.A. | Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica. |
US6920194B2 (en) | 2001-05-29 | 2005-07-19 | Tioga Technologies, Ltd. | Method and system for detecting, timing, and correcting impulse noise |
JP3637884B2 (ja) * | 2001-06-01 | 2005-04-13 | ソニー株式会社 | 逆拡散装置、伝播路推定装置、受信装置ならびに干渉抑圧装置、逆拡散、伝播路推定、受信および干渉抑圧方法、該プログラムおよび該プログラムを記録した記録媒体 |
US7158563B2 (en) | 2001-06-01 | 2007-01-02 | The Board Of Trustees Of The Leland Stanford Junior University | Dynamic digital communication system control |
US20020183010A1 (en) | 2001-06-05 | 2002-12-05 | Catreux Severine E. | Wireless communication systems with adaptive channelization and link adaptation |
GB2376315B (en) | 2001-06-05 | 2003-08-06 | 3Com Corp | Data bus system including posted reads and writes |
US7190749B2 (en) | 2001-06-06 | 2007-03-13 | Qualcomm Incorporated | Method and apparatus for canceling pilot interference in a wireless communication system |
US20020193146A1 (en) | 2001-06-06 | 2002-12-19 | Mark Wallace | Method and apparatus for antenna diversity in a wireless communication system |
DE60127944T2 (de) * | 2001-06-08 | 2007-09-06 | Sony Deutschland Gmbh | Mehrträgersystem mit adaptiver bitweiser verschachtelung |
US20030012308A1 (en) * | 2001-06-13 | 2003-01-16 | Sampath Hemanth T. | Adaptive channel estimation for wireless systems |
US7027523B2 (en) | 2001-06-22 | 2006-04-11 | Qualcomm Incorporated | Method and apparatus for transmitting data in a time division duplexed (TDD) communication system |
US6842460B1 (en) | 2001-06-27 | 2005-01-11 | Nokia Corporation | Ad hoc network discovery menu |
KR20040008230A (ko) | 2001-06-27 | 2004-01-28 | 노오텔 네트웍스 리미티드 | 무선 통신 시스템에서 제어 정보의 통신 |
US7149190B1 (en) | 2001-06-28 | 2006-12-12 | Nortel Networks Limited | MAC channel operation employable for receiving on more than one forward link channel |
US6751444B1 (en) | 2001-07-02 | 2004-06-15 | Broadstorm Telecommunications, Inc. | Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems |
FR2827731B1 (fr) | 2001-07-23 | 2004-01-23 | Nexo | Haut-parleur a radiation directe et rayonnement optimise |
US6996380B2 (en) | 2001-07-26 | 2006-02-07 | Ericsson Inc. | Communication system employing transmit macro-diversity |
US6738020B1 (en) | 2001-07-31 | 2004-05-18 | Arraycomm, Inc. | Estimation of downlink transmission parameters in a radio communications system with an adaptive antenna array |
ATE400097T1 (de) | 2001-08-13 | 2008-07-15 | Motorola Inc | Drahtlose kommunikation mit sendediversität |
KR100703295B1 (ko) | 2001-08-18 | 2007-04-03 | 삼성전자주식회사 | 이동통신시스템에서 안테나 어레이를 이용한 데이터 송/수신 장치 및 방법 |
US20030039317A1 (en) | 2001-08-21 | 2003-02-27 | Taylor Douglas Hamilton | Method and apparatus for constructing a sub-carrier map |
US6807429B2 (en) | 2001-08-22 | 2004-10-19 | Qualcomm Incorporated | Method and apparatus for combining power control commands received in a wireless communication system |
FR2828981B1 (fr) | 2001-08-23 | 2004-05-21 | Commissariat Energie Atomique | Creuset a chauffage par induction et refroidissement par caloducs |
KR100459573B1 (ko) | 2001-08-25 | 2004-12-03 | 삼성전자주식회사 | 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서역방향 전송 전력 오프셋과 고속 순방향 공통 채널 전력레벨을 송수신하는 장치 및 방법 |
EP1289328A1 (en) | 2001-08-28 | 2003-03-05 | Lucent Technologies Inc. | A method of sending control information in a wireless telecommunications network, and corresponding apparatus |
US6990059B1 (en) * | 2001-09-05 | 2006-01-24 | Cisco Technology, Inc. | Interference mitigation in a wireless communication system |
US7149254B2 (en) | 2001-09-06 | 2006-12-12 | Intel Corporation | Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems |
FR2829326A1 (fr) | 2001-09-06 | 2003-03-07 | France Telecom | Procede et systeme de reception iterative sous optimale pour systeme de transmission haut debit cdma |
US7133070B2 (en) | 2001-09-20 | 2006-11-07 | Eastman Kodak Company | System and method for deciding when to correct image-specific defects based on camera, scene, display and demographic data |
US7039363B1 (en) | 2001-09-28 | 2006-05-02 | Arraycomm Llc | Adaptive antenna array with programmable sensitivity |
US7277679B1 (en) | 2001-09-28 | 2007-10-02 | Arraycomm, Llc | Method and apparatus to provide multiple-mode spatial processing to a terminal unit |
US7024163B1 (en) | 2001-09-28 | 2006-04-04 | Arraycomm Llc | Method and apparatus for adjusting feedback of a remote unit |
US6788948B2 (en) | 2001-09-28 | 2004-09-07 | Arraycomm, Inc. | Frequency dependent calibration of a wideband radio system using narrowband channels |
US7269127B2 (en) * | 2001-10-04 | 2007-09-11 | Bae Systems Information And Electronic Systems Integration Inc. | Preamble structures for single-input, single-output (SISO) and multi-input, multi-output (MIMO) communication systems |
US7035359B2 (en) | 2001-10-11 | 2006-04-25 | Telefonaktiebolaget L.M. Ericsson | Methods and apparatus for demodulation of a signal in a signal slot subject to a discontinuous interference signal |
US7248559B2 (en) | 2001-10-17 | 2007-07-24 | Nortel Networks Limited | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
US7548506B2 (en) * | 2001-10-17 | 2009-06-16 | Nortel Networks Limited | System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |
US7773699B2 (en) | 2001-10-17 | 2010-08-10 | Nortel Networks Limited | Method and apparatus for channel quality measurements |
KR100533205B1 (ko) | 2001-10-17 | 2005-12-05 | 닛본 덴끼 가부시끼가이샤 | 이동 통신 시스템, 통신 제어 방법, 이것에 사용되는기지국 및 이동국 |
US7116652B2 (en) | 2001-10-18 | 2006-10-03 | Lucent Technologies Inc. | Rate control technique for layered architectures with multiple transmit and receive antennas |
US7349667B2 (en) | 2001-10-19 | 2008-03-25 | Texas Instruments Incorporated | Simplified noise estimation and/or beamforming for wireless communications |
US20030119452A1 (en) | 2001-10-19 | 2003-06-26 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling transmission power of downlink data channel in a mobile communication system supporting MBMS |
JP3607238B2 (ja) | 2001-10-22 | 2005-01-05 | 株式会社東芝 | Ofdm信号受信システム |
CN1306722C (zh) | 2001-10-31 | 2007-03-21 | 松下电器产业株式会社 | 无线发射装置和无线通信方法 |
US7218684B2 (en) | 2001-11-02 | 2007-05-15 | Interdigital Technology Corporation | Method and system for code reuse and capacity enhancement using null steering |
US7164649B2 (en) | 2001-11-02 | 2007-01-16 | Qualcomm, Incorporated | Adaptive rate control for OFDM communication system |
US20030125040A1 (en) | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
US8018903B2 (en) | 2001-11-21 | 2011-09-13 | Texas Instruments Incorporated | Closed-loop transmit diversity scheme in frequency selective multipath channels |
US7346126B2 (en) | 2001-11-28 | 2008-03-18 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for channel estimation using plural channels |
EP1450505B1 (en) * | 2001-11-28 | 2008-10-29 | Fujitsu Limited | Orthogonal frequency-division multiplex transmission method |
US7263119B1 (en) | 2001-11-29 | 2007-08-28 | Marvell International Ltd. | Decoding method and apparatus |
US7154936B2 (en) | 2001-12-03 | 2006-12-26 | Qualcomm, Incorporated | Iterative detection and decoding for a MIMO-OFDM system |
US6760388B2 (en) | 2001-12-07 | 2004-07-06 | Qualcomm Incorporated | Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems |
US7155171B2 (en) | 2001-12-12 | 2006-12-26 | Saraband Wireless | Vector network analyzer applique for adaptive communications in wireless networks |
US20030112745A1 (en) | 2001-12-17 | 2003-06-19 | Xiangyang Zhuang | Method and system of operating a coded OFDM communication system |
WO2003055195A2 (en) | 2001-12-18 | 2003-07-03 | Globespan Virata Incorporated | System and method for rate enhanced shdsl |
US7099398B1 (en) | 2001-12-18 | 2006-08-29 | Vixs, Inc. | Method and apparatus for establishing non-standard data rates in a wireless communication system |
KR100444730B1 (ko) | 2001-12-24 | 2004-08-16 | 한국전자통신연구원 | 광대역 부호 분할 다중 접속 시스템용 기지국의 복조 장치및 방법 |
US7573805B2 (en) | 2001-12-28 | 2009-08-11 | Motorola, Inc. | Data transmission and reception method and apparatus |
JP4052835B2 (ja) | 2001-12-28 | 2008-02-27 | 株式会社日立製作所 | 多地点中継を行う無線伝送システム及びそれに使用する無線装置 |
CA2366397A1 (en) | 2001-12-31 | 2003-06-30 | Tropic Networks Inc. | An interface for data transfer between integrated circuits |
US7209433B2 (en) * | 2002-01-07 | 2007-04-24 | Hitachi, Ltd. | Channel estimation and compensation techniques for use in frequency division multiplexed systems |
US7020110B2 (en) | 2002-01-08 | 2006-03-28 | Qualcomm Incorporated | Resource allocation for MIMO-OFDM communication systems |
US7020482B2 (en) | 2002-01-23 | 2006-03-28 | Qualcomm Incorporated | Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems |
US7058116B2 (en) | 2002-01-25 | 2006-06-06 | Intel Corporation | Receiver architecture for CDMA receiver downlink |
US7283508B2 (en) | 2002-02-07 | 2007-10-16 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting/receiving serving HS-SCCH set information in an HSDPA communication system |
US7046978B2 (en) | 2002-02-08 | 2006-05-16 | Qualcomm, Inc. | Method and apparatus for transmit pre-correction in wireless communications |
US6650691B2 (en) | 2002-02-12 | 2003-11-18 | Motorola, Inc. | Power control in spread spectrum communications systems |
US6980800B2 (en) | 2002-02-12 | 2005-12-27 | Hughes Network Systems | System and method for providing contention channel organization for broadband satellite access in a communications network |
US7292854B2 (en) | 2002-02-15 | 2007-11-06 | Lucent Technologies Inc. | Express signaling in a wireless communication system |
US7076263B2 (en) | 2002-02-19 | 2006-07-11 | Qualcomm, Incorporated | Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems |
US6862271B2 (en) | 2002-02-26 | 2005-03-01 | Qualcomm Incorporated | Multiple-input, multiple-output (MIMO) systems with multiple transmission modes |
US20030162519A1 (en) | 2002-02-26 | 2003-08-28 | Martin Smith | Radio communications device |
US6959171B2 (en) | 2002-02-28 | 2005-10-25 | Intel Corporation | Data transmission rate control |
US6687492B1 (en) | 2002-03-01 | 2004-02-03 | Cognio, Inc. | System and method for antenna diversity using joint maximal ratio combining |
US6636568B2 (en) | 2002-03-01 | 2003-10-21 | Qualcomm | Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system |
US6873651B2 (en) | 2002-03-01 | 2005-03-29 | Cognio, Inc. | System and method for joint maximal ratio combining using time-domain signal processing |
US20040047284A1 (en) * | 2002-03-13 | 2004-03-11 | Eidson Donald Brian | Transmit diversity framing structure for multipath channels |
US7406065B2 (en) | 2002-03-14 | 2008-07-29 | Qualcomm, Incorporated | Method and apparatus for reducing inter-channel interference in a wireless communication system |
US7035284B2 (en) | 2002-03-14 | 2006-04-25 | Qualcomm Incorporated | Method and apparatus for reducing inter-channel interference in a wireless communication system employing a non-periodic interleaver |
US7042858B1 (en) | 2002-03-22 | 2006-05-09 | Jianglei Ma | Soft handoff for OFDM |
JP3561510B2 (ja) | 2002-03-22 | 2004-09-02 | 松下電器産業株式会社 | 基地局装置及びパケット伝送方法 |
US20040198276A1 (en) | 2002-03-26 | 2004-10-07 | Jose Tellado | Multiple channel wireless receiver |
US7012978B2 (en) | 2002-03-26 | 2006-03-14 | Intel Corporation | Robust multiple chain receiver |
US7197084B2 (en) | 2002-03-27 | 2007-03-27 | Qualcomm Incorporated | Precoding for a multipath channel in a MIMO system |
KR100456693B1 (ko) | 2002-03-28 | 2004-11-10 | 삼성전자주식회사 | 다중채널 통신 시스템의 비트 할당을 최적화하여 셋업시간을 최소화하는 방법 |
US20030186650A1 (en) | 2002-03-29 | 2003-10-02 | Jung-Tao Liu | Closed loop multiple antenna system |
US7224704B2 (en) | 2002-04-01 | 2007-05-29 | Texas Instruments Incorporated | Wireless network scheduling data frames including physical layer configuration |
US7099377B2 (en) | 2002-04-03 | 2006-08-29 | Stmicroelectronics N.V. | Method and device for interference cancellation in a CDMA wireless communication system |
US6850741B2 (en) | 2002-04-04 | 2005-02-01 | Agency For Science, Technology And Research | Method for selecting switched orthogonal beams for downlink diversity transmission |
US7020226B1 (en) | 2002-04-04 | 2006-03-28 | Nortel Networks Limited | I/Q distortion compensation for the reception of OFDM signals |
US7103325B1 (en) | 2002-04-05 | 2006-09-05 | Nortel Networks Limited | Adaptive modulation and coding |
WO2003088540A1 (en) | 2002-04-05 | 2003-10-23 | Flarion Technologies, Inc. | Phase sequences for timing and access signals |
US7623871B2 (en) | 2002-04-24 | 2009-11-24 | Qualcomm Incorporated | Position determination for a wireless terminal in a hybrid position determination system |
US7876726B2 (en) | 2002-04-29 | 2011-01-25 | Texas Instruments Incorporated | Adaptive allocation of communications link channels to I- or Q-subchannel |
US7352722B2 (en) | 2002-05-13 | 2008-04-01 | Qualcomm Incorporated | Mitigation of link imbalance in a wireless communication system |
US6690660B2 (en) | 2002-05-22 | 2004-02-10 | Interdigital Technology Corporation | Adaptive algorithm for a Cholesky approximation |
US7327800B2 (en) | 2002-05-24 | 2008-02-05 | Vecima Networks Inc. | System and method for data detection in wireless communication systems |
US6862440B2 (en) | 2002-05-29 | 2005-03-01 | Intel Corporation | Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration |
US7421039B2 (en) | 2002-06-04 | 2008-09-02 | Lucent Technologies Inc. | Method and system employing antenna arrays |
KR100498326B1 (ko) | 2002-06-18 | 2005-07-01 | 엘지전자 주식회사 | 이동통신 단말기의 적응 변조 코딩 장치 및 방법 |
US7184713B2 (en) | 2002-06-20 | 2007-02-27 | Qualcomm, Incorporated | Rate control for multi-channel communication systems |
US7095709B2 (en) | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication systems |
US7359313B2 (en) | 2002-06-24 | 2008-04-15 | Agere Systems Inc. | Space-time bit-interleaved coded modulation for wideband transmission |
US7613248B2 (en) | 2002-06-24 | 2009-11-03 | Qualcomm Incorporated | Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
JP4579680B2 (ja) | 2002-06-27 | 2010-11-10 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 通信システムにおけるチャンネル特性の測定 |
US7551546B2 (en) | 2002-06-27 | 2009-06-23 | Nortel Networks Limited | Dual-mode shared OFDM methods/transmitters, receivers and systems |
US7342912B1 (en) | 2002-06-28 | 2008-03-11 | Arraycomm, Llc. | Selection of user-specific transmission parameters for optimization of transmit performance in wireless communications using a common pilot channel |
US7702035B2 (en) * | 2002-07-03 | 2010-04-20 | Freescale Semiconductor, Inc. | Searching method and apparatus for processing digital communication signals |
EP1379020A1 (en) | 2002-07-03 | 2004-01-07 | National University Of Singapore | A wireless communication apparatus and method |
US20040017785A1 (en) | 2002-07-16 | 2004-01-29 | Zelst Allert Van | System for transporting multiple radio frequency signals of a multiple input, multiple output wireless communication system to/from a central processing base station |
US6683916B1 (en) | 2002-07-17 | 2004-01-27 | Philippe Jean-Marc Sartori | Adaptive modulation/coding and power allocation system |
US6885708B2 (en) * | 2002-07-18 | 2005-04-26 | Motorola, Inc. | Training prefix modulation method and receiver |
KR20040011653A (ko) * | 2002-07-29 | 2004-02-11 | 삼성전자주식회사 | 채널 특성에 적응적인 직교 주파수 분할 다중 통신 방법및 장치 |
CN1698274B (zh) | 2002-07-30 | 2012-07-18 | 美商智慧财产权授权股份有限公司 | 多输入多输出无线通信的装置及方法 |
US6961595B2 (en) | 2002-08-08 | 2005-11-01 | Flarion Technologies, Inc. | Methods and apparatus for operating mobile nodes in multiple states |
US7653415B2 (en) | 2002-08-21 | 2010-01-26 | Broadcom Corporation | Method and system for increasing data rate in a mobile terminal using spatial multiplexing for DVB-H communication |
EP1392004B1 (en) | 2002-08-22 | 2009-01-21 | Interuniversitair Microelektronica Centrum Vzw | Method for multi-user MIMO transmission and apparatuses suited therefore |
US6970722B1 (en) | 2002-08-22 | 2005-11-29 | Cisco Technology, Inc. | Array beamforming with wide nulls |
US20040037257A1 (en) | 2002-08-23 | 2004-02-26 | Koninklijke Philips Electronics N.V. | Method and apparatus for assuring quality of service in wireless local area networks |
US8194770B2 (en) | 2002-08-27 | 2012-06-05 | Qualcomm Incorporated | Coded MIMO systems with selective channel inversion applied per eigenmode |
US6940917B2 (en) | 2002-08-27 | 2005-09-06 | Qualcomm, Incorporated | Beam-steering and beam-forming for wideband MIMO/MISO systems |
EP1535410A1 (en) | 2002-09-06 | 2005-06-01 | Nokia Corporation | Antenna selection method |
US7260153B2 (en) | 2002-09-09 | 2007-08-21 | Mimopro Ltd. | Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels |
US20040052228A1 (en) | 2002-09-16 | 2004-03-18 | Jose Tellado | Method and system of frequency and time synchronization of a transceiver to signals received by the transceiver |
US7426176B2 (en) | 2002-09-30 | 2008-09-16 | Lucent Technologies Inc. | Method of power allocation and rate control in OFDMA systems |
FR2845626B1 (fr) | 2002-10-14 | 2005-12-16 | Rotelec Sa | Procede pour la maitrise des mouvements du metal, dans une lingotiere de coulee continue de brames |
US7961774B2 (en) | 2002-10-15 | 2011-06-14 | Texas Instruments Incorporated | Multipath interference-resistant receivers for closed-loop transmit diversity (CLTD) in code-division multiple access (CDMA) systems |
US6850511B2 (en) | 2002-10-15 | 2005-02-01 | Intech 21, Inc. | Timely organized ad hoc network and protocol for timely organized ad hoc network |
US20040121730A1 (en) | 2002-10-16 | 2004-06-24 | Tamer Kadous | Transmission scheme for multi-carrier MIMO systems |
US7453844B1 (en) | 2002-10-22 | 2008-11-18 | Hong Kong Applied Science and Technology Research Institute, Co., Ltd. | Dynamic allocation of channels in a wireless network |
US7518997B2 (en) | 2002-10-22 | 2009-04-14 | Texas Instruments Incorporated | Wireless mobile communication stations for operation in non-exclusive spectrum |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8170513B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Data detection and demodulation for wireless communication systems |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
EP2262149B1 (en) | 2002-10-25 | 2018-08-29 | QUALCOMM Incorporated | Data detection and demodulation for wireless communication systems |
US7151809B2 (en) | 2002-10-25 | 2006-12-19 | Qualcomm, Incorporated | Channel estimation and spatial processing for TDD MIMO systems |
US7324429B2 (en) | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
EP1554831B1 (en) | 2002-10-26 | 2013-05-22 | Electronics and Telecommunications Research Institute | Frequency hopping ofdma method using symbols of comb pattern |
EP1416688A1 (en) | 2002-10-31 | 2004-05-06 | Motorola Inc. | Iterative channel estimation in multicarrier receivers |
US7317750B2 (en) | 2002-10-31 | 2008-01-08 | Lot 41 Acquisition Foundation, Llc | Orthogonal superposition coding for direct-sequence communications |
US7280625B2 (en) | 2002-12-11 | 2007-10-09 | Qualcomm Incorporated | Derivation of eigenvectors for spatial processing in MIMO communication systems |
US7280467B2 (en) | 2003-01-07 | 2007-10-09 | Qualcomm Incorporated | Pilot transmission schemes for wireless multi-carrier communication systems |
US7058367B1 (en) | 2003-01-31 | 2006-06-06 | At&T Corp. | Rate-adaptive methods for communicating over multiple input/multiple output wireless systems |
US7583637B2 (en) | 2003-01-31 | 2009-09-01 | Alcatel-Lucent Usa Inc. | Methods of controlling data rate in wireless communications systems |
US20040176097A1 (en) | 2003-02-06 | 2004-09-09 | Fiona Wilson | Allocation of sub channels of MIMO channels of a wireless network |
EP1447934A1 (en) | 2003-02-12 | 2004-08-18 | Institut Eurecom G.I.E. | Transmission and reception diversity process for wireless communications |
JP2004266586A (ja) | 2003-03-03 | 2004-09-24 | Hitachi Ltd | 移動通信システムのデータ送受信方法 |
JP4250002B2 (ja) | 2003-03-05 | 2009-04-08 | 富士通株式会社 | 適応型変調伝送システム及び適応型変調制御方法 |
US6927728B2 (en) | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
US7822140B2 (en) | 2003-03-17 | 2010-10-26 | Broadcom Corporation | Multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining |
US7885228B2 (en) | 2003-03-20 | 2011-02-08 | Qualcomm Incorporated | Transmission mode selection for data transmission in a multi-channel communication system |
JP4259897B2 (ja) | 2003-03-25 | 2009-04-30 | シャープ株式会社 | 無線データ伝送システム及び無線データ送受信装置 |
US7242727B2 (en) | 2003-03-31 | 2007-07-10 | Lucent Technologies Inc. | Method of determining transmit power for transmit eigenbeams in a multiple-input multiple-output communications system |
US7403503B2 (en) | 2003-07-09 | 2008-07-22 | Interdigital Technology Corporation | Resource allocation in wireless communication systems |
CA2532080A1 (en) | 2003-07-11 | 2005-01-27 | Qualcomm Incorporated | Dynamic shared forward link channel for a wireless communication system |
AU2003255106A1 (en) | 2003-08-08 | 2005-02-25 | Biotechnology Research Institute, Chinese Academy of Agricultural Science | 5-enolpyruvyl-3-phosphoshikimate synthase of high glyphosate-bioresistance and coding sequence |
US7065144B2 (en) | 2003-08-27 | 2006-06-20 | Qualcomm Incorporated | Frequency-independent spatial processing for wideband MISO and MIMO systems |
DE602004029906D1 (de) | 2003-08-27 | 2010-12-16 | Wavion Ltd | Wlan-kapazitäts-erweiterung durch verwendung von sdm |
US7356089B2 (en) | 2003-09-05 | 2008-04-08 | Nortel Networks Limited | Phase offset spatial multiplexing |
KR100995031B1 (ko) | 2003-10-01 | 2010-11-19 | 엘지전자 주식회사 | 다중입력 다중출력 시스템에 적용되는 신호 전송 제어 방법 |
US8842657B2 (en) | 2003-10-15 | 2014-09-23 | Qualcomm Incorporated | High speed media access control with legacy system interoperability |
US8233462B2 (en) | 2003-10-15 | 2012-07-31 | Qualcomm Incorporated | High speed media access control and direct link protocol |
US8483105B2 (en) | 2003-10-15 | 2013-07-09 | Qualcomm Incorporated | High speed media access control |
US8526412B2 (en) | 2003-10-24 | 2013-09-03 | Qualcomm Incorporated | Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system |
US7508748B2 (en) | 2003-10-24 | 2009-03-24 | Qualcomm Incorporated | Rate selection for a multi-carrier MIMO system |
AU2004307449C1 (en) | 2003-10-24 | 2009-04-30 | Qualcomm Incorporated | Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system |
US7616698B2 (en) | 2003-11-04 | 2009-11-10 | Atheros Communications, Inc. | Multiple-input multiple output system and method |
US7298805B2 (en) | 2003-11-21 | 2007-11-20 | Qualcomm Incorporated | Multi-antenna transmission for spatial division multiple access |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
US7231184B2 (en) | 2003-12-05 | 2007-06-12 | Texas Instruments Incorporated | Low overhead transmit channel estimation |
US7872963B2 (en) | 2003-12-27 | 2011-01-18 | Electronics And Telecommunications Research Institute | MIMO-OFDM system using eigenbeamforming method |
US7333556B2 (en) | 2004-01-12 | 2008-02-19 | Intel Corporation | System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel |
JP2005223829A (ja) | 2004-02-09 | 2005-08-18 | Nec Electronics Corp | 分数分周回路及びこれを用いたデータ伝送装置 |
US7206354B2 (en) | 2004-02-19 | 2007-04-17 | Qualcomm Incorporated | Calibration of downlink and uplink channel responses in a wireless MIMO communication system |
US7746886B2 (en) | 2004-02-19 | 2010-06-29 | Broadcom Corporation | Asymmetrical MIMO wireless communications |
US7274734B2 (en) | 2004-02-20 | 2007-09-25 | Aktino, Inc. | Iterative waterfiling with explicit bandwidth constraints |
US7486740B2 (en) | 2004-04-02 | 2009-02-03 | Qualcomm Incorporated | Calibration of transmit and receive chains in a MIMO communication system |
US7848442B2 (en) | 2004-04-02 | 2010-12-07 | Lg Electronics Inc. | Signal processing apparatus and method in multi-input/multi-output communications systems |
US7110463B2 (en) | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
US7606319B2 (en) | 2004-07-15 | 2009-10-20 | Nokia Corporation | Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels |
US20060018247A1 (en) | 2004-07-22 | 2006-01-26 | Bas Driesen | Method and apparatus for space interleaved communication in a multiple antenna communication system |
US7599443B2 (en) | 2004-09-13 | 2009-10-06 | Nokia Corporation | Method and apparatus to balance maximum information rate with quality of service in a MIMO system |
KR100905605B1 (ko) | 2004-09-24 | 2009-07-02 | 삼성전자주식회사 | 직교주파수분할다중화 다중입출력 통신 시스템의 전송 방법 |
TWI410072B (zh) | 2004-11-16 | 2013-09-21 | Qualcomm Inc | 用於藉由無線通訊系統中之站台之速率選擇之裝置、方法及記憶體單元 |
US8498215B2 (en) | 2004-11-16 | 2013-07-30 | Qualcomm Incorporated | Open-loop rate control for a TDD communication system |
US7525988B2 (en) | 2005-01-17 | 2009-04-28 | Broadcom Corporation | Method and system for rate selection algorithm to maximize throughput in closed loop multiple input multiple output (MIMO) wireless local area network (WLAN) system |
US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US7603141B2 (en) | 2005-06-02 | 2009-10-13 | Qualcomm, Inc. | Multi-antenna station with distributed antennas |
US8358714B2 (en) | 2005-06-16 | 2013-01-22 | Qualcomm Incorporated | Coding and modulation for multiple data streams in a communication system |
US20090161613A1 (en) | 2007-11-30 | 2009-06-25 | Mark Kent | Method and system for constructing channel quality indicator tables for feedback in a communication system |
US20090291642A1 (en) | 2008-05-23 | 2009-11-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and Methods for SIR Estimation for Power Control |
US8619620B2 (en) | 2008-09-16 | 2013-12-31 | Qualcomm Incorporated | Methods and systems for transmission mode selection in a multi channel communication system |
ES2355347B1 (es) | 2009-01-30 | 2012-02-10 | Vodafone España, S.A.U. | Método para detectar interferencias en un sistema de comunicación inal�?mbrico. |
US20100260060A1 (en) | 2009-04-08 | 2010-10-14 | Qualcomm Incorporated | Integrated calibration protocol for wireless lans |
KR20130018079A (ko) | 2011-08-10 | 2013-02-20 | 삼성전자주식회사 | 무선 통신 시스템에서 빔 고정 장치 및 방법 |
-
2003
- 2003-02-25 US US10/375,162 patent/US20040081131A1/en not_active Abandoned
- 2003-10-27 CA CA2756741A patent/CA2756741C/en not_active Expired - Lifetime
- 2003-10-27 TW TW092129820A patent/TWI339036B/zh not_active IP Right Cessation
- 2003-10-27 CN CN2010105559095A patent/CN101997814B/zh not_active Expired - Lifetime
- 2003-10-27 EP EP03779266A patent/EP1557022A2/en not_active Ceased
- 2003-10-27 BR BR0315540-4A patent/BR0315540A/pt not_active Application Discontinuation
- 2003-10-27 EP EP11173875A patent/EP2378726A3/en not_active Withdrawn
- 2003-10-27 CN CN2003801050597A patent/CN1757213B/zh not_active Expired - Lifetime
- 2003-10-27 UA UAA200504856A patent/UA84411C2/ru unknown
- 2003-10-27 KR KR1020057007171A patent/KR100990683B1/ko active IP Right Grant
- 2003-10-27 CA CA2756728A patent/CA2756728C/en not_active Expired - Lifetime
- 2003-10-27 AU AU2003284944A patent/AU2003284944C1/en not_active Expired
- 2003-10-27 JP JP2005501686A patent/JP4913406B2/ja not_active Expired - Lifetime
- 2003-10-27 RU RU2005115879/09A patent/RU2380845C2/ru active
- 2003-10-27 CA CA2501458A patent/CA2501458C/en not_active Expired - Lifetime
- 2003-10-27 WO PCT/US2003/033907 patent/WO2004039027A2/en active Search and Examination
- 2003-10-27 MX MXPA05004398A patent/MXPA05004398A/es active IP Right Grant
-
2005
- 2005-03-20 IL IL167554A patent/IL167554A/en active IP Right Grant
-
2006
- 2006-06-06 HK HK11110355.5A patent/HK1156164A1/xx not_active IP Right Cessation
- 2006-06-06 HK HK10104743.0A patent/HK1139250A1/xx not_active IP Right Cessation
- 2006-06-06 HK HK06106442.5A patent/HK1086681A1/xx not_active IP Right Cessation
-
2009
- 2009-05-26 AU AU2009202082A patent/AU2009202082B2/en not_active Expired
-
2010
- 2010-02-14 IL IL203960A patent/IL203960A/en active IP Right Grant
- 2010-02-15 JP JP2010030077A patent/JP5096508B2/ja not_active Expired - Lifetime
-
2011
- 2011-11-24 JP JP2011256173A patent/JP5221743B2/ja not_active Expired - Lifetime
-
2013
- 2013-06-18 US US13/920,971 patent/US9154274B2/en not_active Expired - Fee Related
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5221743B2 (ja) | 複数のシンボル長を使用する多重キャリア送信 | |
CN101582873B (zh) | 使用多种码元长度的多载波传输方法和设备 | |
US8571132B2 (en) | Constrained hopping in wireless communication systems | |
JP5595746B2 (ja) | 空間分割多元接続のためのマルチアンテナ送信 | |
EP1531594A1 (en) | Apparatus and method for sub-carrier allocation in a multiple-input and multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system | |
JP2006229503A (ja) | 無線通信装置及び無線通信方法、並びに無線通信システム | |
AU2011213737B2 (en) | Multicarrier transmission using a plurality of symbol lengths |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130205 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130307 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20160315 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5221743 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |