METHOD AND APPARATUS FOR SENDING FEEDBACK FOR DOWNLINK SHARED SERVICE TRANSMITTED TO PLURALITY OF WIRELESS TRANSMISSION/RECEPTION UNITS

Title:

METHOD AND APPARATUS FOR SENDING FEEDBACK FOR DOWNLINK SHARED SERVICE TRANSMITTED TO PLURALITY OF WIRELESS TRANSMISSION/RECEPTION UNITS

Document Type and Number:

Japanese Patent JP2012165440

Kind Code:

A

Abstract:

To minimize the impact of feedback from a plurality of WTRUs on the uplink and downlink capacity.

A WTRU sends a pre-defined burst signifying a negative acknowledgement (NACK) to a Node-B via a contention-based shared feedback channel if decoding of a signal from the Node-B is not successful. The pre-defined burst may be sent only once without requiring an acknowledgement. The Node-B may send a downlink transmission including multiple data streams processed using different modulation and coding schemes so that a WTRU having a low signal quality decodes less than all data streams. The Node-B sends a channel quality indicator (CQI) threshold so that each WTRU determines a data stream to report feedback based on the CQI threshold and a measured CQI.

More Like This:

JP4584330	Base station and how to arrange subburst area at that base station
WO/2020/090646	TERMINAL DEVICE AND BASE STATION DEVICE
JP7027539	Acknowledgment frame delay period setting method, device, and system

Inventors:

ALEXANDER REZNIK
ELDAD M ZEIRA
CHRISTOPHER R CAVE
MARINIER PAUL

Application Number:

JP2012091000A

Publication Date:

August 30, 2012

Filing Date:

April 12, 2012

Export Citation:

Click for automatic bibliography generation Help

Assignee:

INTERDIGITAL TECH CORP

International Classes:

H04W28/04; H04W52/14; H04W52/22; H04W52/24; H04W52/32; H04W72/08; H04W4/06

Domestic Patent References:

JP2010512033A

2010-04-15

Foreign References:

WO2008050467A1

2008-05-02

Other References:

JPN6013030512; ＮＴＴ　ＤｏＣｏＭｏ，　Ｅｒｉｃｓｓｏｎ，　Ｍｉｔｓｕｂｉｓｈｉ　Ｅｌｅｃｔｒｉｃ，　ＮＥＣ，　Ｐａｎａｓｏｎｉｃ，　Ｓｈａｒｐ，　Ｔｏｓｈｉｂａ　Ｃｏｒｐｏｒａｔｉｏｎ: 'Ｄａｔａ-ｎｏｎ-ａｓｓｏｃｉａｔｅｄ　Ｌ１／Ｌ２　Ｃｏｎｔｒｏｌ　Ｃｈａｎｎｅｌ　Ｓｔｒｕｃｔｕｒｅ　ｆｏｒ　Ｅ-ＵＴＲＡ　Ｕｐｌｉｎｋ' ３ＧＰＰ　ＴＳＧ　ＲＡＮ　ＷＧ１　Ｍｅｅｔｉｎｇ　＃４６ｂｉｓ　Ｒ１-０６２７４１ , 20061013, ３ＧＰＰ
JPN6013030515; ＮＥＣ　Ｇｒｏｕｐ: 'Ｒｅｆｅｒｅｎｃｅ　ｓｉｇｎａｌ　ｍｕｌｔｉｐｌｅｘｉｎｇ　ｆｏｒ　ｄａｔａ-ｎｏｎ-ａｓｓｏｃｉａｔｅｄ　ｃｏｎｔｒｏｌ　ｓｉｇｎａｌ　ｉｎ　ＥＵＴＲＡ　ｕｐｌｉｎｋ' ３ＧＰＰ　ＴＳＧ　ＲＡＮ　ＷＧ１　Ｍｅｅｔｉｎｇ　＃４６ｂｉｓ　Ｒ１-０６２７６８ , 20061013, ３ＧＰＰ

Attorney, Agent or Firm:

Patent Business Corporation Tani/Abe Patent Office

Previous Patent: めっきプロセス用プライマー層、配線板用積層板及びその製造方法、多層�...

Next Patent: METHODS AND SYSTEMS FOR HFN HANDLING AT INTER-BASE STATION HANDOVER IN MOBILE COMMUNICATION NETWORKS