Invention Grant
US08238234B2 Switching between MIMO and receiver beam forming in a peer-to-peer network
有权
在对等网络中切换MIMO和接收机波束形成
- Patent Title: Switching between MIMO and receiver beam forming in a peer-to-peer network
- Patent Title (中): 在对等网络中切换MIMO和接收机波束形成
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Application No.: US12477363Application Date: 2009-06-03
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Publication No.: US08238234B2Publication Date: 2012-08-07
- Inventor: Hua Wang , Xinzhou Wu , Thomas Richardson , Pramod Viswanath , Junyi Li , Saurabh Tavildar
- Applicant: Hua Wang , Xinzhou Wu , Thomas Richardson , Pramod Viswanath , Junyi Li , Saurabh Tavildar
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent James O'Hare; Paul S. Holdaway
- Main IPC: H04L12/56
- IPC: H04L12/56

Abstract:
Aspects describe different multiple antenna techniques that can be utilized in a peer-to-peer network based on a network congestion level. A MIMO scheme where a transmitter sends to a receiver multiple spatial streams at substantially the same time in the same traffic segment can be utilized when network congestion level is low. A receiver beam forming scheme where transmitter sends a single stream in a traffic segment and receiver uses multiple receive antennas to maximize signal to noise ratio can be utilized when network congestion level is high. The connection pair (transmitter and receiver) occupy more control resources in the MIMO scheme than the receiver beam forming scheme. The decision related to which technique to utilize can be made at about the same time as a communication is initiated. Further, if network conditions change during a communication, the antenna technique that is utilized can be switched to a different technique during the communication exchange.
Public/Granted literature
- US20100309781A1 SWITCHING BETWEEN MIMO AND RECEIVER BEAM FORMING IN A PEER-TO-PEER NETWORK Public/Granted day:2010-12-09
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