JP2011151724A - 無線通信装置、無線通信方法、通信制御装置、およびプログラム - Google Patents
無線通信装置、無線通信方法、通信制御装置、およびプログラム Download PDFInfo
- Publication number
- JP2011151724A JP2011151724A JP2010013193A JP2010013193A JP2011151724A JP 2011151724 A JP2011151724 A JP 2011151724A JP 2010013193 A JP2010013193 A JP 2010013193A JP 2010013193 A JP2010013193 A JP 2010013193A JP 2011151724 A JP2011151724 A JP 2011151724A
- Authority
- JP
- Japan
- Prior art keywords
- redundancy
- unit
- data
- packet
- wireless communication
- 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.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 95
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims description 47
- 238000012937 correction Methods 0.000 abstract description 7
- 230000006870 function Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000015654 memory Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- URWAJWIAIPFPJE-YFMIWBNJSA-N sisomycin Chemical compound O1C[C@@](O)(C)[C@H](NC)[C@@H](O)[C@H]1O[C@@H]1[C@@H](O)[C@H](O[C@@H]2[C@@H](CC=C(CN)O2)N)[C@@H](N)C[C@H]1N URWAJWIAIPFPJE-YFMIWBNJSA-N 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0039—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver other detection of signalling, e.g. detection of TFCI explicit signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
- H04L1/0034—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter where the transmitter decides based on inferences, e.g. use of implicit signalling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4381—Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6375—Control signals issued by the client directed to the server or network components for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
【解決手段】無線通信装置は、無線通信の物理/MACレイヤにおける冗長度を示す第1の冗長情報を検出する検出部と、前記検出部により検出された前記第1の冗長情報に基づいて、前記レイヤより上位のレイヤにおける第2の冗長度を決定する通信制御部と、送信データをパケット化してデータパケットを生成するパケタイズ部と、前記通信制御部により決定された前記第2の冗長度に基づいて、前記パケタイズ部により生成されたデータパケットに対して冗長パケットを付加する冗長符号化部とを有する。
【選択図】図2
Description
1.無線通信システムの構成
2.データ送信装置の構成
3.送信処理
4.効果の例
5.データ受信装置の構成
6.受信処理
まず、図1を参照して、本発明の一実施形態に係る無線通信システムの概略構成について説明する。図1は、本発明の一実施形態に係る無線通信システムの概略構成の一例を示す構成図である。
ここで、図4を参照しながら、本実施形態に係るデータ送信装置100の構成について説明する。図4は、本実施形態に係るデータ送信装置100の構成を示す機能ブロック図である。
次に、図5及び図6を参照しながら、データ送信装置100の送信処理について説明する。図5は、パケット送信処理を示すフローチャートである。また図6は、冗長度決定処理を示すフローチャートである。
以上説明したように、本発明の一実施形態に係るデータ送信装置100は、MIMOの信号処理モードがSTBCである場合、すなわち、物理/MACレイヤレベルにおいて冗長化されている場合には、アプリケーション層における冗長化であるFEC符号化における冗長度の算出に、送信に用いられる空間ストリーム数を考慮して、用いられる最大空間ストリーム数が多いほどFEC冗長度を低くする(FEC冗長パケット数を少なくする)。
次に、データ送信装置100から送信されたストリーミングデータを受信するデータ受信装置200の構成について図8を参照しながら説明する。図8は、データ受信装置の構成を示すブロック図である。
次に、このデータ受信装置200におけるデータ受信処理の流れを図9を参照しながら説明する。まず、データ受信装置において、RTP受信部204は、1フレーム分のパケットを取得する(S302)。そして、RTP受信部204は、この受信したパケットがパケットロスを含むか否かを判断する(S304)。
100 データ送信装置
102 エンコーダ
104 パケタイズ部
106 冗長符号化部
108 RTP送信部
110 通信部
112 RTCP通信部
114 検出部
116 記憶部
118 通信制御部
200 データ受信装置
300 ネットワーク
Claims (7)
- 無線通信の物理/MACレイヤにおける冗長度を示す第1の冗長情報を検出する検出部と、
前記検出部により検出された前記第1の冗長情報に基づいて、前記レイヤより上位のレイヤにおける第2の冗長度を決定する通信制御部と、
送信データをパケット化してデータパケットを生成するパケタイズ部と、
前記通信制御部により決定された前記第2の冗長度に基づいて、前記パケタイズ部により生成されたデータパケットに対して冗長パケットを付加する冗長符号化部と、
を備える、無線通信装置。 - 前記検出部は、前記無線通信に用いられる信号処理モードと空間ストリーム数とを含む前記第1の冗長情報を検出し、
前記通信制御部は、前記検出部の検出した前記信号処理モードと前記空間ストリーム数に応じて前記第2の冗長度を決定する、
請求項1に記載の無線通信装置。 - 前記通信制御部は、前記検出部の検出した前記信号処理モードが複数のアンテナで同時に同じデータを送信する信号処理モードである場合に、検出された前記最大空間ストリーム数/前記空間ストリーム数の値が大きいほど前記第2の冗長度が小さくなるように制御を行う、請求項2に記載の無線通信装置。
- 前記第2の冗長度は、前記冗長符号化部において得られる各符号化ブロックにおける元データパケット数と冗長パケット数との比率を示し、
前記通信制御部は、パケットロス率の情報に基づいて、前記パケットロス率をp、前記元データパケット数をk、前記冗長パケット数をn−k、目標符号化ブロック損失率をPt、前記空間ストリームの最大数をMmax、前記空間ストリーム数をMとするときに、前記検出部の検出した前記信号処理モードが複数のアンテナで同時に同じデータを送信する信号処理モードである場合には、
- 無線通信に用いる信号処理モードを切替えて用いることのできる無線通信装置の、
検出部が、前記無線通信の物理/MACレイヤにおける冗長度を示す第1の冗長情報を検出するステップと、
通信制御部が、前記検出部により検出された前記第1の冗長情報に基づいて、前記レイヤより上位のレイヤにおける第2の冗長度を決定するステップと、
パケタイズ部が、送信データをパケット化してデータパケットを生成するステップと、
冗長符号化部が、前記通信制御部により決定された前記第2の冗長度に基づいて、前記パケタイズ部により生成されたデータパケットに対して冗長パケットを付加するステップと、
を含む、無線通信方法。 - 無線通信の物理/MACレイヤにおける冗長度を示す第1の冗長情報を検出する検出部と、
前記検出部により検出された前記第1の冗長情報に基づいて、前記レイヤより上位のレイヤにおける第2の冗長度を決定する通信制御部と、
を備える通信制御装置。 - コンピュータを、
無線通信の物理/MACレイヤにおける冗長度を示す第1の冗長情報を検出する検出部と、
前記検出部により検出された前記第1の冗長情報に基づいて、前記レイヤより上位のレイヤにおける第2の冗長度を決定する通信制御部と、
して機能させるためのプログラム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010013193A JP5493910B2 (ja) | 2010-01-25 | 2010-01-25 | 無線通信装置、無線通信方法、通信制御装置、およびプログラム |
CN2011100099615A CN102137436A (zh) | 2010-01-25 | 2011-01-18 | 无线电通信装置、无线电通信方法、通信控制装置和程序 |
US12/930,815 US8670337B2 (en) | 2010-01-25 | 2011-01-18 | Radio communication apparatus, radio communication method, communication control apparatus, and program |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010013193A JP5493910B2 (ja) | 2010-01-25 | 2010-01-25 | 無線通信装置、無線通信方法、通信制御装置、およびプログラム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011151724A true JP2011151724A (ja) | 2011-08-04 |
JP5493910B2 JP5493910B2 (ja) | 2014-05-14 |
Family
ID=44297071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010013193A Expired - Fee Related JP5493910B2 (ja) | 2010-01-25 | 2010-01-25 | 無線通信装置、無線通信方法、通信制御装置、およびプログラム |
Country Status (3)
Country | Link |
---|---|
US (1) | US8670337B2 (ja) |
JP (1) | JP5493910B2 (ja) |
CN (1) | CN102137436A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017118175A (ja) * | 2015-12-21 | 2017-06-29 | 日本放送協会 | 送信装置、受信装置、プログラム、およびチップ |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9198084B2 (en) | 2006-05-26 | 2015-11-24 | Qualcomm Incorporated | Wireless architecture for a traditional wire-based protocol |
US8667144B2 (en) | 2007-07-25 | 2014-03-04 | Qualcomm Incorporated | Wireless architecture for traditional wire based protocol |
US8811294B2 (en) | 2008-04-04 | 2014-08-19 | Qualcomm Incorporated | Apparatus and methods for establishing client-host associations within a wireless network |
US9398089B2 (en) * | 2008-12-11 | 2016-07-19 | Qualcomm Incorporated | Dynamic resource sharing among multiple wireless devices |
US9264248B2 (en) * | 2009-07-02 | 2016-02-16 | Qualcomm Incorporated | System and method for avoiding and resolving conflicts in a wireless mobile display digital interface multicast environment |
US9582238B2 (en) | 2009-12-14 | 2017-02-28 | Qualcomm Incorporated | Decomposed multi-stream (DMS) techniques for video display systems |
US8964783B2 (en) | 2011-01-21 | 2015-02-24 | Qualcomm Incorporated | User input back channel for wireless displays |
US9413803B2 (en) | 2011-01-21 | 2016-08-09 | Qualcomm Incorporated | User input back channel for wireless displays |
US10135900B2 (en) | 2011-01-21 | 2018-11-20 | Qualcomm Incorporated | User input back channel for wireless displays |
US9582239B2 (en) | 2011-01-21 | 2017-02-28 | Qualcomm Incorporated | User input back channel for wireless displays |
US9787725B2 (en) | 2011-01-21 | 2017-10-10 | Qualcomm Incorporated | User input back channel for wireless displays |
US9065876B2 (en) | 2011-01-21 | 2015-06-23 | Qualcomm Incorporated | User input back channel from a wireless sink device to a wireless source device for multi-touch gesture wireless displays |
US8674957B2 (en) | 2011-02-04 | 2014-03-18 | Qualcomm Incorporated | User input device for wireless back channel |
US9503771B2 (en) | 2011-02-04 | 2016-11-22 | Qualcomm Incorporated | Low latency wireless display for graphics |
US10108386B2 (en) | 2011-02-04 | 2018-10-23 | Qualcomm Incorporated | Content provisioning for wireless back channel |
US9525998B2 (en) | 2012-01-06 | 2016-12-20 | Qualcomm Incorporated | Wireless display with multiscreen service |
GB2521441B (en) * | 2013-12-20 | 2016-04-20 | Imagination Tech Ltd | Packet loss mitigation |
CN112333405A (zh) * | 2020-11-18 | 2021-02-05 | 成都致迅科技有限公司 | 一种双频无线图像传输系统及方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006118081A1 (ja) * | 2005-04-26 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | 送信装置、受信装置及びリンクアダプテーション方法 |
JP2008160499A (ja) * | 2006-12-25 | 2008-07-10 | Sony Corp | データ通信システム、データ送信装置、データ送信方法、並びにパケットサイズおよび冗長度の決定方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5380862B2 (ja) * | 2008-03-05 | 2014-01-08 | 日本電気株式会社 | Ipストリーム送受信システム、ipストリーム受信装置及びそれらに用いる受信処理タイミング同期化方法 |
US20090254794A1 (en) * | 2008-04-04 | 2009-10-08 | Nxp B.V. | Method for efficient packet framing in a communication network |
US8510621B2 (en) * | 2009-12-29 | 2013-08-13 | Industrial Technology Research Institute | Method and apparatus for providing resource unit based data block partition |
-
2010
- 2010-01-25 JP JP2010013193A patent/JP5493910B2/ja not_active Expired - Fee Related
-
2011
- 2011-01-18 CN CN2011100099615A patent/CN102137436A/zh active Pending
- 2011-01-18 US US12/930,815 patent/US8670337B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006118081A1 (ja) * | 2005-04-26 | 2006-11-09 | Matsushita Electric Industrial Co., Ltd. | 送信装置、受信装置及びリンクアダプテーション方法 |
JP2008160499A (ja) * | 2006-12-25 | 2008-07-10 | Sony Corp | データ通信システム、データ送信装置、データ送信方法、並びにパケットサイズおよび冗長度の決定方法 |
Non-Patent Citations (1)
Title |
---|
JPN6013057713; 'Cross-layer wireless multimedia transmission: challenges, principles, and new paradigms' Wireless Communications, IEEE Volume:12 , Issue: 4, 200508, Pages: 50 - 58 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017118175A (ja) * | 2015-12-21 | 2017-06-29 | 日本放送協会 | 送信装置、受信装置、プログラム、およびチップ |
Also Published As
Publication number | Publication date |
---|---|
CN102137436A (zh) | 2011-07-27 |
US20110182195A1 (en) | 2011-07-28 |
US8670337B2 (en) | 2014-03-11 |
JP5493910B2 (ja) | 2014-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5493910B2 (ja) | 無線通信装置、無線通信方法、通信制御装置、およびプログラム | |
JP4475235B2 (ja) | コンテンツの符号化、配信及び受信方法と装置とシステムならびにプログラム | |
US8374087B2 (en) | Reliable audio-video transmission system using multi-media diversity | |
TWI454090B (zh) | 在通訊系統中處理多媒體資訊的方法和系統 | |
CN101341702B (zh) | 操纵分组的网络处理节点和方法 | |
KR20100094973A (ko) | 중첩 변조를 사용하는 무선 데이터 멀티캐스트용의 강건한 시스템 및 방법 | |
Tsai et al. | Sub-packet forward error correction mechanism for video streaming over wireless networks | |
Tsai et al. | Concurrent multipath transmission combining forward error correction and path interleaving for video streaming | |
Chieochan et al. | Wireless fountain coding with IEEE 802.11 e block ACK for media streaming in wireline-cum-WiFi networks: a performance study | |
ES2278226T3 (es) | Sistema y metodo para proporcionar una recuperacion frente a errores para video codificado por fgs en flujo continuo en una red ip. | |
JPWO2005050346A1 (ja) | コンテンツ配信及び受信装置,コンテンツ送受信システム,コンテンツ配信及び受信方法,コンテンツ配信及び受信用プログラム | |
US20060285149A1 (en) | Image data distribution control method, device, system and program | |
EP1775870A1 (en) | Two-way communication method and device, system and program | |
US20150006991A1 (en) | Graceful degradation-forward error correction method and apparatus for performing same | |
Tsai et al. | MAC-level forward error correction mechanism for minimum error recovery overhead and retransmission | |
Chesterfield et al. | Exploiting diversity to enhance multimedia streaming over cellular links | |
Nazir et al. | Unequal error protection for data partitioned H. 264/AVC video broadcasting | |
Tsai et al. | Dynamical combination of byte level and sub-packet level FEC in HARQ mechanism to reduce error recovery overhead on video streaming over wireless networks | |
Purandare et al. | Impact of bit error on video transmission over wireless networks and error resiliency | |
Barreira et al. | Impact of the IEEE 802.11 n frame aggregation mechanisms on video streaming quality | |
KR100916312B1 (ko) | 적응적 가중 오류 정정 부호화 및 다중 표현열 부호화를사용한 비디오 전송 장치 및 그 방법 | |
Salim et al. | Prioritized 3-D video transmission over cooperative MIMO-OFDM systems | |
Shan et al. | Two-stage FEC scheme for scalable video transmission over wireless networks | |
Shaheen et al. | Evaluating the significance of error checksums for wireless video streaming | |
Argyriou | Distributed resource allocation for network-supported FGS video streaming |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130111 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20131114 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20131126 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20131213 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140107 |
|
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: 20140204 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140217 |
|
LAPS | Cancellation because of no payment of annual fees |