JP4914935B2 - 送信ノードにおける輻輳制御 - Google Patents
送信ノードにおける輻輳制御 Download PDFInfo
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- 230000011664 signaling Effects 0.000 claims description 112
- 238000000034 method Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 16
- 230000002596 correlated effect Effects 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 230000010267 cellular communication Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
-
- 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
- H04B7/0452—Multi-user MIMO systems
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Description
2.非特許文献3に記載のゼロフォーシングビームフォーミングと、
3.非特許文献4に記載のユーザ毎の単一速度制御(PU2RC:per user unitary rate control)である。
502 識別した冗長シグナリングのビット、即ち、データビットを再解釈または再定義し、MU−MIMOモードに関するシグナリング情報として含め、
503 冗長ビットの再解釈についてUEに通知し、
504 前記再解釈した冗長ビットを使用することにより、MU−MIMOモードに関する情報をシグナリングする。
Claims (16)
- マルチユーザ多入力多出力(MU−MIMO)用の基地局に関し、前記基地局の多入力多出力(MIMO)アンテナから、シングルユーザ多入力多出力(SU−MIMO)シグナリングモードとマルチユーザ多入力多出力(MU−MIMO)シグナリングモードの両方のために構成され、部分的に共有されたシグナリングがある前記複数のモードの間で切り替えを行うように構成された通信システムの複数の移動体端末の1つにシグナリングする方法であって、前記方法は、
MU−MIMOモードについては冗長性があるSU−MIMOシグナリングを識別し(501)、前記冗長性のあるシグナリングのビットを再解釈して(502)、前記MU−MIMOモードに関係するシグナリング情報を含むようにする工程と、
前記冗長性のあるビットの再解釈についてシグナリングにより前記移動体端末に通知する(503)工程と、
前記再解釈された冗長性のあるビットを用いて、前記MU−MIMOモードに関係する情報をシグナリングする(504)工程とを有することを特徴とする方法。 - 前記冗長性のあるシグナリングは、送信ランクのシグナリングとプリコーダ要素のシグナリングとの内の少なくともいずれかに関係することを特徴とする請求項1に記載の方法。
- 前記MU−MIMOシグナリング情報は、基準電力とデータシンボルとの間の電力オフセットを有することを特徴とする請求項1又は2に記載の方法。
- 前記基準電力は基準シンボル(RS)であることを特徴とする請求項3に記載の方法。
- 前記MU−MIMOシグナリング情報は、移動体端末の総数を含むことを特徴とする請求項1又は2に記載の方法。
- 前記再解釈された冗長性のあるビットは、前記移動体端末がスケジュールされるときにはいつでもシグナリングされることを特徴とする請求項1乃至5のいずれか1項に記載の方法。
- 複数の移動体端末の1つにシグナリングする多入力多出力(MIMO)アンテナを有し、シングルユーザ多入力多出力(SU−MIMO)シグナリングモードとマルチユーザ多入力多出力(MU−MIMO)シグナリングモードとの両方に対して構成され、部分的に共有されたシグナリングがある前記複数のモードの間で切り替えを行う手段(61)を有した通信システムにおける基地局(60)であって、
MU−MIMOモードについては冗長性があるSU−MIMOシグナリングを識別するシグナリングモード比較器手段(62)と、
前記冗長性のあるシグナリングのビットを再解釈して、前記MU−MIMOモードに関係するシグナリング情報を含むようにする再解釈手段(63)と、
前記冗長性のあるビットの再解釈について前記移動体端末に通知し、前記再解釈された冗長性のあるビットを用いて、前記MU−MIMOモードに関係する情報をシグナリングする送信器手段(64)とを有することを特徴とする無線基地局。 - 前記冗長性のあるシグナリングは、送信ランクのシグナリングとプリコーダ要素のシグナリングとの内の少なくともいずれかに関係することを特徴とする請求項7に記載の無線基地局。
- 前記MU−MIMOシグナリング情報は、基準電力と前記複数の移動体端末の内の1つの端末のデータシンボルとの間の電力オフセットを有することを特徴とする請求項7又は8に記載の無線基地局。
- 前記基準電力は基準シンボル(RS)であることを特徴とする請求項9に記載の無線基地局。
- 前記MU−MIMOシグナリング情報は、移動体端末の総数を含むことを特徴とする請求項7又は8に記載の無線基地局。
- シングルユーザ多入力多出力(SU−MIMO)シグナリングモードとマルチユーザ多入力多出力(MU−MIMO)シグナリングモードとの両方に対して構成された多入力多出力(MIMO)の複数のアンテナ(74)と、部分的に共有されたシグナリングがある前記複数のモードの間で切り替えを行う手段(71)とを有した移動体端末であって、前記移動体端末は、
基地局から、冗長性のあるSU−MIMOのビットの再解釈についての情報と、前記再解釈された冗長性のあるビットを受信することによってMU−MIMOモードに関係したシグナリング情報とを受信する受信器手段(72)と、
前記冗長性のあるSU−MIMOビットの再解釈についての前記情報を用いて、前記再解釈された冗長性のあるビットの解釈を行う手段(75)とを有することを特徴とする移動体端末。 - 前記冗長性のあるシグナリングは、送信ランクのシグナリングとプリコーダ要素のシグナリングとの内の少なくともいずれかに関係することを特徴とする請求項12に記載の移動体端末。
- 前記MU−MIMOシグナリング情報は、基準電力と前記複数の移動体端末の内の1つの端末のデータシンボルとの間の電力オフセットを有することを特徴とする請求項12又は13に記載の移動体端末。
- 前記基準電力は基準シンボル(RS)であることを特徴とする請求項14に記載の移動体端末。
- 前記MU−MIMOシグナリング情報は、移動体端末の総数を含むことを特徴とする請求項12又は13に記載の移動体端末。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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SE0701582 | 2007-06-27 | ||
SE0701582-9 | 2007-06-27 | ||
PCT/SE2008/050383 WO2009002251A2 (en) | 2007-06-27 | 2008-04-03 | Mode switching between su-mimo and mu-mimo |
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JP2012010258A Division JP5514235B2 (ja) | 2007-06-27 | 2012-01-20 | 通信装置及び通信方法 |
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JP2010531615A JP2010531615A (ja) | 2010-09-24 |
JP2010531615A5 JP2010531615A5 (ja) | 2011-04-21 |
JP4914935B2 true JP4914935B2 (ja) | 2012-04-11 |
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JP2012010258A Active JP5514235B2 (ja) | 2007-06-27 | 2012-01-20 | 通信装置及び通信方法 |
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US (6) | US8989290B2 (ja) |
EP (4) | EP3570455B1 (ja) |
JP (2) | JP4914935B2 (ja) |
CN (1) | CN101743699B (ja) |
BR (1) | BRPI0813769B1 (ja) |
CA (1) | CA2692109C (ja) |
ES (3) | ES2744884T3 (ja) |
HK (1) | HK1212519A1 (ja) |
HU (2) | HUE057563T2 (ja) |
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CA2684874C (en) * | 2007-04-20 | 2015-08-18 | Interdigital Technology Corporation | Method and apparatus for efficient precoding information validation for mimo communications |
US8135083B2 (en) * | 2007-05-01 | 2012-03-13 | Nec Laboratories America, Inc. | Codebook method for a multiple input multiple output wireless system |
ES2744884T3 (es) | 2007-06-27 | 2020-02-26 | Unwired Planet International Ltd | Procedimiento y disposiciones en un sistema de telecomunicaciones que soporta MU-MIMO y SU-MIMO |
US8552876B2 (en) * | 2009-05-22 | 2013-10-08 | The Patent Store Llc | Intelligent wire connectors |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2012157001A (ja) * | 2007-06-27 | 2012-08-16 | Telefon Ab L M Ericsson | 送信ノードにおける輻輳制御 |
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