08964874 is referenced by 2 patents and cites 6 patents.

Uplink transmission from a mobile device having multiple antennas to a base station having multiple antennas includes transmitting in an open-loop single-user MIMO mode when the mobile device is at high speed, transmitting in a closed-loop single-user MIMO mode when the mobile device is at low speed, and, upon request, transmitting in a multi-user collaborative MIMO mode. The method also includes controlling uplink transmissions in a selected one of the open-loop single-user MIMO, the closed-loop single-user MIMO and the multiuser collaborative MIMO modes. Uplink transmissions from the mobile device may be transmitted using multiple antennas of the mobile device. Upon request, the mobile device may switch to transmitting in multi-user collaborative MIMO mode with a subset of the multiple antennas.

Title
Uplink MIMO transmission from mobile communications devices
Application Number
14/244260
Publication Number
8964874 (B2)
Application Date
April 3, 2014
Publication Date
February 24, 2015
Inventor
Mo Han Fong
Ottawa
CA
Hosein Nikopourdeilami
Stittsville
CA
Jun Yuan
Ottawa
CA
Agent
Micky Minhas
Judy Yee
Brandon Roper
Assignee
Microsoft Technology Licensing
WA, US
IPC
H04L 25/03
H04B 7/06
H04B 7/04
H04B 7/02
H04L 1/02
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