JP6532904B2 - Mimoシステムにおけるデータを送受信する方法及び装置 - Google Patents
Mimoシステムにおけるデータを送受信する方法及び装置 Download PDFInfo
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- JP6532904B2 JP6532904B2 JP2017035293A JP2017035293A JP6532904B2 JP 6532904 B2 JP6532904 B2 JP 6532904B2 JP 2017035293 A JP2017035293 A JP 2017035293A JP 2017035293 A JP2017035293 A JP 2017035293A JP 6532904 B2 JP6532904 B2 JP 6532904B2
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- 238000000034 method Methods 0.000 title claims description 138
- 238000004891 communication Methods 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 136
- 230000001934 delay Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0083—Formatting with frames or packets; Protocol or part of protocol for error control
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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
- H04B7/0413—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
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
- H04L1/0637—Properties of the code
- H04L1/0643—Properties of the code block codes
-
- 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
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Description
共通シグナルフィールドは、共通ユーザグループに属するユーザ及び属しないユーザの両方ともが認知することができる。また、共通シグナルフィールドは、送信されたデータフレームがどんな通信システムにより生成されたものであるかを判別する自動検出(auto−detection)に用いられるため、互換性を有しなければならない。従って、共通シグナルフィールドのフォーマット又は構成の変更には制約がある。
以下、添付図面を参照して本発明による好ましい実施例を詳細に説明する。図面で同じ参照符号は、同一又は類似の構成要素を示す。
従って、図4の実施例で4個のストリームに適用された方式を単純に繰り返すことによって最大性能を得ることができる。
図9の実施例でも、SIG Bを繰り返しなくても十分の性能を得ることができることにもかかわらず、SIG Bが2シンボルにわたって送信されるため効率的な送信にならない。
図50は、SU−MIMOで、VHT−SIG Bの長さが、20MHz帯域で26ビットであり、40MHz帯域で27ビットであり、80MHz帯域で29ビットである時のVHT−SIG Bのビット割当を示す。
Claims (12)
- 無線LANのための方法であって、
受信端末によって、動作帯域でVHT−SIG A(Very High Throughput Signal A)フィールドおよびVHT−SIG B(Very High Throughput Signal B)フィールドを含むフレームを受信するステップであって、前記動作帯域は複数の20MHz帯域を含む、ステップ、を備え、
前記VHT−SIG Aフィールドは、前記複数の20MHz帯域の各々で送信され、
前記VHT−SIG Bフィールドは一つの直交周波数分割多重(OFDM)シンボルで送信され、前記VHT−SIG Bフィールドは複数のビットに対応し、
前記VHT−SIG Bフィールドに対応するビット数は前記動作帯域に基づいて異なるようにセットされ、
前記VHT−SIG Bフィールドに対応した前記複数のビットはビットの第1の部分を含み、前記ビットの第1の部分は繰り返され、
前記ビットの第1の部分は長さ指示子を含み、
前記動作帯域が40MHzである場合に前記長さ指示子を示す第1のビット数が、前記動作帯域が80MHz以上である場合に前記長さ指示子を示す第2のビット数よりも小さい、方法。 - 前記VHT−SIG Aフィールドは、二つの直交周波数分割多重(OFDM)シンボルを占めることを特徴とする請求項1に記載の方法。
- 前記動作帯域の帯域幅が40MHzである場合、前記ビットの第1の部分が27ビットからなり、前記長さ指示子を示す前記第1のビット数が17であることを特徴とする請求項1に記載の方法。
- 前記動作帯域の帯域幅が40MHzよりも大きい場合、前記ビットの第1の部分が29ビットからなり、前記長さ指示子を示す前記第2のビット数が19であることを特徴とする請求項1に記載の方法。
- データフィールドを受信するステップであって、前記データフィールドが、前記VHT−SIG Bフィールドのエラーを検出するために用いられるCRC(Cyclic Redundancy Check)フィールドを含む、ステップを更に備える、請求項1に記載の方法。
- 無線通信装置であって、
プロセッサと、
前記プロセッサに動作可能に結合され、命令を記憶するメモリであって、前記プロセッサによって前記命令が実行される場合、前記無線通信装置に、
動作帯域でVHT−SIG A(Very High Throughput Signal A) フィールドおよびVHT−SIG B(Very High Throughput Signal B)フィールドを含むフレームを受信させ、前記動作帯域が複数の20MHz帯域を含む、メモリと、
を備え、
前記VHT−SIG Aフィールドは、前記複数の20MHz帯域の各々で送信され、
前記VHT−SIG Bフィールドは一つの直交周波数分割多重(OFDM)シンボルで送信され、前記VHT−SIG Bフィールドは複数のビットに対応し、
前記VHT−SIG Bフィールドに対応するビット数は前記動作帯域に基づいて異なるようにセットされ、
前記VHT−SIG Bフィールドに対応した前記複数のビットはビットの第1の部分を含み、前記ビットの第1の部分は繰り返され、
前記ビットの第1の部分は長さ指示子を含み、
前記動作帯域が40MHzである場合に前記長さ指示子を示す第1のビット数は、前記動作帯域が80MHz以上である場合に前記長さ指示子を示す第2のビット数よりも小さい、無線通信装置。 - 前記VHT−SIG Aフィールドは二つの直交周波数分割多重(OFDM)シンボルを占める請求項6に記載の装置。
- 前記VHT−SIG Aフィールドは複数の受信端末に共通する第1の情報を含み、前記VHT−SIG Bフィールドは前記受信端末に固有の第2の情報を含むことを特徴とする請求項6に記載の装置。
- 前記動作帯域の帯域幅が40MHzの場合、前記ビットの第1の部分が27ビットからなり、前記長さ指示子を示す前記第1のビット数が17であることを特徴とする請求項6に記載の装置。
- 前記動作帯域の帯域幅が40MHzよりも大きく、かつ前記動作帯域の前記帯域幅が80MHz以下である場合、前記ビットの第1の部分が29ビットからなり、前記長さ指示子を示す前記第2のビット数が19であることを特徴とする請求項6に記載の装置。
- 前記VHT−SIG Aフィールドは、複数の受信端末に共通する第1の情報を含み、前記VHT−SIG Bフィールドは前記受信端末に固有の第2の情報を含むことを特徴とする請求項6に記載の装置。
- 前記ビットの第1の部分は、変調及びコーディング方法(MCS)に関するインデックス、前記長さ指示子、およびテールビットを含み、
前記MCSに関するインデックスは4ビット長であり、前記テールビットは6ビット長であり、前記長さ指示子は20ビットよりも短いことを特徴とする請求項6に記載の装置。
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KR10-2010-0022122 | 2010-03-12 | ||
KR20100022122 | 2010-03-12 | ||
KR10-2010-0065898 | 2010-07-08 | ||
KR20100065898 | 2010-07-08 | ||
KR20100066458 | 2010-07-09 | ||
KR10-2010-0066458 | 2010-07-09 | ||
KR20100068167 | 2010-07-14 | ||
KR10-2010-0068167 | 2010-07-14 | ||
KR10-2010-0072506 | 2010-07-27 | ||
KR20100072506 | 2010-07-27 |
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JP2015101327A Division JP6342363B2 (ja) | 2010-03-12 | 2015-05-18 | Mimoシステムにおけるデータを送受信する方法及び装置 |
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JP2019057099A Division JP6741814B2 (ja) | 2010-03-12 | 2019-03-25 | 無線通信方法、無線通信装置、およびステーション用の通信装置 |
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JP2017123678A JP2017123678A (ja) | 2017-07-13 |
JP6532904B2 true JP6532904B2 (ja) | 2019-06-19 |
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JP2012556993A Pending JP2013522950A (ja) | 2010-03-12 | 2011-03-11 | Mimoシステムにおけるデータを送受信する方法及び装置 |
JP2015101327A Active JP6342363B2 (ja) | 2010-03-12 | 2015-05-18 | Mimoシステムにおけるデータを送受信する方法及び装置 |
JP2017035293A Active JP6532904B2 (ja) | 2010-03-12 | 2017-02-27 | Mimoシステムにおけるデータを送受信する方法及び装置 |
JP2019057099A Active JP6741814B2 (ja) | 2010-03-12 | 2019-03-25 | 無線通信方法、無線通信装置、およびステーション用の通信装置 |
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JP2020126629A Active JP7095032B2 (ja) | 2010-03-12 | 2020-07-27 | Mimoシステムにおけるデータを送受信する方法及び装置 |
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US (6) | US8654881B2 (ja) |
EP (4) | EP2911313B1 (ja) |
JP (5) | JP2013522950A (ja) |
KR (1) | KR101202197B1 (ja) |
CN (2) | CN102893535B (ja) |
AU (1) | AU2011224961B2 (ja) |
BR (1) | BR112012022749B1 (ja) |
CA (1) | CA2792929C (ja) |
DE (1) | DE112011100890T5 (ja) |
ES (2) | ES2535604T3 (ja) |
MX (1) | MX2012010564A (ja) |
PL (2) | PL2547002T3 (ja) |
WO (1) | WO2011112054A2 (ja) |
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